Sony DSR-20MD Service Manual
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Sony DSR-20MD Service Manual

Sony DSR-20MD Service Manual

Digital video cassette recorder
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DSR-20MD/20MDP
RMT-DS20
SERVICE MANUAL
US Model
Canadian Model
Ver. 1.1 2007.05
DSR-20MD
AEP Model
Australian Model
New Zealand Model
DSR-20MDP
E MECHANISM
Photo: DSR-20MD
SPECIFICATIONS
– Continued on next page –
DIGITAL VIDEO CASSETTE RECORDER
MICROFILM

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Summary of Contents for Sony DSR-20MD

  • Page 1 DSR-20MD/20MDP RMT-DS20 SERVICE MANUAL US Model Canadian Model Ver. 1.1 2007.05 DSR-20MD AEP Model Australian Model New Zealand Model DSR-20MDP E MECHANISM Photo: DSR-20MD SPECIFICATIONS – Continued on next page – DIGITAL VIDEO CASSETTE RECORDER MICROFILM...
  • Page 2 DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ SONY PARTS WHOSE PART NUMBERS APPEAR AS DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PIÈCES SONY DONT LES SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY. NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
  • Page 3 SAFETY CHECK-OUT (US Model only) After correcting the original service problem, perform the following safety checks before releasing the set to the customer: LEAKAGE TEST 1. Check the area of your repair for unsoldered or poorly-sol- dered connections. Check the entire board surface for solder The AC leakage from any exposed metal part to earth ground splashes and bridges.

  • Page 4: Service Note

    SERVICE NOTE • Note for Repair Make sure that the flat cable and flexible board are not cracked or bent at the terminal. Do not insert the cable insufficiently nor crookedly. Cut and remove the part of gilt which comes off at the point. (Take care that there are some pieces of gilt left inside) –...

  • Page 5: Table Of Contents

    TABLE OF CONTENTS Section Title Page Section Title Page SERVICE NOTE ..............4 • VA-102 (IF) Schematic Diagram ......4-63 • VA-102 (VIDEO IN) Schematic Diagram ....4-65 • VA-102 (VIDEO OUT) Schematic Diagram ... 4-69 GENERAL • VA-102 (UVIC & DV IN/OUT) Schematic Diagram 4-73 •...
  • Page 6 Section Title Page Section Title Page 5-11. TG2 Retainer, TG2 Arm Assembly (TG2 Plate Spring 3-1-3. Adjusting Connectors (RP 228 Board CN775) ..5-59 and ET Magnet), S Tension Regulator Band Assembly 3-1-4. Checking the Input Signals ........5-60 and TG2 Load Arm Assembly ........ 5-19 S Video Input ............
  • Page 7 Section Title Page Playback Y Level Check (VA-102 Board) ....5-80 Playback Chroma Level Adjustment (VA-102 Board) ............5-81 Playback Burst Level Adjustment (VA-102 Board) (PAL Model Only) ........... 5-81 3-5-4. General Adjustment ..........5-82 Y Output Level Adjustment (JC-19 Board) .... 5-82 Encoder R-Y Input Level Adjustment (JC-19 Board) ............

  • Page 8: General

    DSR-20MD/20MDP SECTION 1 This section is extracted from DSR- GENERAL 20MD/20MDP instruction manual.
  • Page 17 1-10 E 1-10...

  • Page 18: Disassembly

    DSR-20MD/20MDP SECTION 2 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. 2-1. REMOVAL OF UPPER CASE 2-3. REMOVAL OF VA-102 BOARD 3 Open sides of upper case and 1 Three flat cables remove the one in the direction (CN051, 702, 851) of the arrow A.

  • Page 19: Removal Of Md Block Assembly

    2-5. REMOVAL OF MD BLOCK ASSEMBLY 2-7. REMOVAL OF JC-19 BOARD 7 Three harnesses (CN101, 701, 831) 2 Two flat cable 4 Two sumitite (CN411, 412) 6 MD block screws (B3) assembly 8 Harness 1 Harness 7 JC-19 board (CN004) (CN501) 5 Two sumitite 2 Two sumitite...

  • Page 20: Circuit Boards Location

    2-9. CIRCUIT BOARDS LOCATION VA-102 RS-78 IF, VIDEO IN/OUT, UVIC, (RS-232C IF) DV IN/OUT, MONITOR OUT, AUDIO, HI MICOM, RS MICOM (POWER 2) RP-228 (REC/PB AMP) RE-32 (V/A IN/OUT) MD-65 (TAPE DETECT) MD-63 (TAPE DETECT) HG-1 OVER DISCHARGE PROTECT U-1 (POWER 1) JC-19 HP-100 AD/DA CONVERTER, S1 AFC, U1,...

  • Page 21: Overall Block Diagram 1

    IC208 NTSC DECODER IC207 IC202 (SEE PAGE 3-3) DIGITAL COMB FILTER BUFFER IC204 S-C/C SWITCH IC206 A-10 X201 Q103 14.3MHz A-11 : DSR-20MD 17.7MHz SDC DET A-12 : DSR-20MDP IC407 Q107 A-13 IC213 S-VIDEO IC401 Q108 A-14 Y SWITCH OUTPUT...

  • Page 22: Overall Block Diagram 2

    (SEE PAGE 4-57) CN702 CN001 SYNC SEP HP-L PHONES IC602 U VIC RV002 CONTROL REC VR L REC X601 LEVEL 3.58MHz : DSR-20MD RV003 4.43MHz REC VR : DSR-20MDP R REC LEVEL MO XPFAIL XHI RST IC858 RESET X852 IC854 IC857 X851 X853 32.768kHz...

  • Page 23: Overall Block Diagram 3

    DSR-20MD/20MDP 3-3. OVERALL BLOCK DIAGRAM 3 JC-19 BOARD RP-228 BOARD CN104 (SEE PAGE 4-19 to 54) (SEE PAGE 4-11 to 14) 8bit DATA 8bit DATA Y-IN IC017 ı ı ı ı CN101 CN412 DRUM HEAD CN771 16bit DATA ISCDXI 0-4 ı...

  • Page 24: Overall Block Diagram 4

    DSR-20MD/20MDP 3-4. OVERALL BLOCK DIAGRAM 4 MD-65 BOARD(1/2) CM-56 BOARD (SEE PAGE 4-91) (SEE PAGE 4-101 to 104) CN008 CN202 CN201 IC021 DRUM U/V/W U,V,W ı ı ı M901 DRUM IC019 MOTOR DRUM DRIVE MOTOR IC008 IC011 BUFFER FG,PG PG,FG...

  • Page 25: Overall Block Diagram 5

    DSR-20MD/20MDP 3-5. OVERALL BLOCK DIAGRAM 5 POWER TRANS AC IN AC IN SWITCH F1, F2 M905 AC INLET 3.15A/125V :DSR-20MD T1.6AL/250V :DSR-20MDP MOTOR PHOTO COUPLER U-1 BOARD CN13 (SEE PAGE 4-113) CN12 DC 12V AC BLOCK +12V AC BLOCK +12V...

  • Page 26: Overall Block Diagram 6

    DSR-20MD/20MDP 3-6. OVERALL BLOCK DIAGRAM 6 VA-102 BOARD CM-56 BOARD CN002 (SEE PAGE 4-101 to 104) (SEE PAGE 4-63 to 88) MD-63 BOARD CN901 IC861 IC851 IC857 CN001 CN101 (SEE PAGE 4-91) IC858 IC854 CHIME VDD LANC BUFFER CLOCK (FOR CASSETTE...

  • Page 27: Printed Wiring Boards And Schematic Diagrams

    DSR-20MD/20MDP SECTION 4 PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block) For printed wiring boards: Measuring conditions voltege and waveform: b : Pattern from the side which enables seeing.

  • Page 28: Frame Schematic Diagrams

    DSR-20MD/20MDP 4-1. FRAME SCHEMATIC DIAGRAMS FRAME (1/2) SCHEMATIC DIAGRAM M902 M904 CAPSTAN REEL MD-63 MD-64 MOTOR MOTOR BOARD BOARD MD-65 HG-1 BOARD BOARD AC BLOCK +12V CN204 CN202 MODE SW D AC BLOCK +12V CN008 MODE SW C S001 DC +12V...

  • Page 29: Frame (2/2) Schematic Diagram

    DSR-20MD/20MDP FRAME (2/2) SCHEMATIC DIAGRAM CN401 CN102 SDC DET SDC DET V_IN V_IN C_IN C_IN Y_IN Y_IN V_OUT V_OUT C_OUT C_OUT Y_OUT Y_OUT MONITOR_OUT MONITOR_OUT RE-32 CN703 CN101 BOARD A.IN_L A.IN_L A.IN_R A.IN_R A.OUT_L A.OUT_L A.OUT_R A.OUT_R A.MON_L A.MON_L A.MON_R A.MON_R...

  • Page 30: Printed Wiring Boards And Schematic Diagrams

    DSR-20MD/20MDP 4-2. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS RP-228 (REC/PB AMP) PRINTED WIRING BOARD • For Printed Wiring Board. • RP-228 board is six-layer print board. However, the patterns – Ref. No.: RP-228 board; 3,000 series – of layers 2 to 5 have not been included in the diagram.
  • Page 31 DSR-20MD/20MDP RP-228 BOARD (SIDE B) 11 10 1-668-406- REC/PB AMP RP-228 4-10...
  • Page 32 DSR-20MD/20MDP RP-228 (REC/PB AMP) SCHEMATIC DIAGRAM • See page 4-7 for RP-228 printed wiring board. • See page 4-119 for waveforms. RP-228 BOARD (1/2) REC/PB AMP RF_5V -REF.NO.:3,000 SERIES- XX MARK:NO MOUNT NO MARK:REC/PB MODE R:REC MODE P:PB MODE CN103...
  • Page 33 DSR-20MD/20MDP RP-228 (REC/PB AMP) SCHEMATIC DIAGRAM • See page 4-7 for RP-228 printed wiring board. • See page 4-119 for waveforms. RP-228 BOARD (2/2) REC/PB AMP -REF.NO.:3,000 SERIES- XX MARK:NO MOUNT R125 CL141 NO MARK:REC/PB MODE R124 CL140 R:REC MODE...

  • Page 34: Printed Wiring Board

    DSR-20MD/20MDP • For Printed Wiring Board. JC-19 (AD/DA CONVERTER, S1 AFC, U1, D1, C1 SPCON, MODE, DV IN/OUT, AUDIO CORE, • JC-19 board is six-layer print board. However, the patterns of DIGITAL AUDIO, AUDIO D/A, A/D CONVERTER) PRINTED WIRING BOARD layers 2 to 5 have not been included in the diagram.
  • Page 35 DSR-20MD/20MDP JC-19 BOARD (SIDE B) 8 10 18 19 1-668-404- 4-18 AD/DA CONVERTER, S1 AFC, U1, D1, C1 SPCON, MODE, DV IN/OUT, AUDIO CORE DIGITAL AUDIO, AUDIO D/A, A/D CONVERTER JC-19 4-17...

  • Page 36: Ad/Da Converter) Schematic Diagram

    DSR-20MD/20MDP JC-19 (AD/DA CONVERTER) SCHEMATIC DIAGRAM • See page 4-15 for JC-19 printed wiring board. • See page 4-119 for waveforms. JC-19 BOARD (1/18) AD/DA CONVERTER NO MARK:REC/PB MODE R:REC MODE J_3.1V -REF.NO.:2,000 SERIES- P:PB MODE 2-11 TO JC-19 BOARD (3/18, 4/18)
  • Page 37 DSR-20MD/20MDP JC-19 (AD/DA CONVERTER) SCHEMATIC DIAGRAM • See page 4-15 for JC-19 printed wiring board. • See page 4-119, 120 for waveforms. JC-19 BOARD (2/18) AD/DA CONVERTER NO MARK:REC/PB MODE R:REC MODE -REF.NO.:2,000 SERIES- P:PB MODE XX MARK:NO MOUNT :IMPOSSIBLE TO MEASURE THE VOLTAGE AT THE MARKED POINTS.

  • Page 38: S1 Afc) Schematic Diagram

    DSR-20MD/20MDP JC-19 (S1 AFC) SCHEMATIC DIAGRAM • See page 4-15 for JC-19 printed wiring board. • See page 4-120 for waveforms. JC-19 BOARD (3/18) TO JC-19 BOARD (10/18, 12/18, 13/18) (SEE PAGE 4-38, 42, 43) S1 AFC -REF.NO.:2,000 SERIES- XX MARK:NO MOUNT...
  • Page 39 DSR-20MD/20MDP JC-19 (S1 AFC) SCHEMATIC DIAGRAM • See page 4-15 for JC-19 printed wiring board. • See page 4-120 for waveforms. JC-19 BOARD (4/18) S1 AFC -REF.NO.:2,000 SERIES- XX MARK:NO MOUNT NO MARK:REC/PB MODE C1_3V R:REC MODE R212 10-3 P:PB MODE...

  • Page 40: U1) Schematic Diagram

    DSR-20MD/20MDP JC-19 (U1) SCHEMATIC DIAGRAM • See page 4-15 for JC-19 printed wiring board. 36-1 36-2 JC-19 BOARD (5/18) NO MARK:REC/PB MODE R:REC MODE -REF.NO.:2,000 SERIES- P:PB MODE XX MARK:NO MOUNT 36-3 L401 C401 0.1u FB401 10uH 1608 B J_3.1V...
  • Page 41 DSR-20MD/20MDP JC-19 (U1) SCHEMATIC DIAGRAM • See page 4-15 for JC-19 printed wiring board. • See page 4-120 for waveforms. JC-19 BOARD (6/18) NO MARK:REC/PB MODE -REF.NO.:2,000 SERIES- R:REC MODE XX MARK:NO MOUNT P:PB MODE 36-1 36-2 36-3 J_3.1V 36-4 J_2.1V...
  • Page 42 DSR-20MD/20MDP JC-19 (D1) SCHEMATIC DIAGRAM • See page 4-15 for JC-19 printed wiring board. JC-19 BOARD (7/18) 37-1 37-2 37-3 -REF.NO.:2,000 SERIES- D119 TO JC-19 BOARD (10/18) 15-1 XX MARK:NO MOUNT (SEE PAGE 4-38) NO MARK:REC/PB MODE R:REC MODE P:PB MODE J_3.1V...

  • Page 43: D1) Schematic Diagram

    DSR-20MD/20MDP JC-19 (D1) SCHEMATIC DIAGRAM • See page 4-15 for JC-19 printed wiring board. • See page 4-120 for waveforms. JC-19 BOARD (8/18) -REF.NO.:2,000 SERIES- 37-1 XX MARK:NO MOUNT 37-2 CN411 NO MARK:REC/PB MODE CL411 37-3 R:REC MODE SP_RST 37-7...

  • Page 44: C1 Spcon) Schematic Diagram

    DSR-20MD/20MDP JC-19 (C1 SPCON) SCHEMATIC DIAGRAM • See page 4-15 for printed wiring board. • See page 4-120, 121 for waveforms. 38-1 C423 JC-19 BOARD (9/18) TO JC-19 BOARD (10/18) C426 0.001u 2.2u (SEE PAGE 4-37) 38-2 C425 0.047u C1 SPCON...
  • Page 45 DSR-20MD/20MDP JC-19 (C1 SPCON) SCHEMATIC DIAGRAM • See page 4-15 for JC-19 printed wiring board. • See page 4-121 for waveform. 24-3 TO JC-19 BOARD (18/18) JC-19 BOARD (10/18) (SEE PAGE 4-54) 24-1 R472 C1 SPCON TO JC-19 BOARD (1/18)
  • Page 46 DSR-20MD/20MDP JC-19 (MODE) SCHEMATIC DIAGRAM • See page 4-15 for JC-19 printed wiring board. JC-19 BOARD (11/18) TO JC-19 BOARD 13-1 MODE (5/18, 7/18, 9/18, 15/18) (SEE PAGE 4-27, 31, 35, 48) 13-2 -REF.NO.:2,000 SERIES- XX MARK:NO MOUNT NO MARK:REC/PB MODE...

  • Page 47: Mode) Schematic Diagram

    DSR-20MD/20MDP JC-19 (MODE) SCHEMATIC DIAGRAM • See page 4-15 for JC-19 printed wiring board. • See page 4-121 for waveforms. R546 JC-19 BOARD (12/18) R536 Q506 4700 1608 2SB798-T1-DLDK MODE TO JC-19 BOARD (4/18, 10/18, 11/18) Q504 19-1 -REF.NO.:2,000 SERIES-...

  • Page 48: Dv In/Out) Schematic Diagram

    DSR-20MD/20MDP JC-19 (DV IN/OUT) SCHEMATIC DIAGRAM • See page 4-15 for JC-19 printed wiring board. • See page 4-121 for waveform. FOR CHECK JC-19 BOARD (13/18) DV IN/OUT -REF.NO.:2,000 SERIES- XX MARK:NO MOUNT NO MARK:REC/PB MODE R:REC MODE P:PB MODE *:IMPOSSIBLE TO MEASURE THE VOLTAGE AT THE MARKED POINTS.
  • Page 49 DSR-20MD/20MDP JC-19 (DV IN/OUT) SCHEMATIC DIAGRAM • See page 4-15 for JC-19 printed wiring board. • See page 4-121 for waveforms. JC-19 BOARD (14/18) DV IN/OUT TO JC-19 BOARD (7/18) TO JC-19 BOARD (10/18) TO JC-19 BOARD (15/18) (SEE PAGE 4-31)

  • Page 50: Audio Core) Schematic Diagram

    DSR-20MD/20MDP JC-19 (AUDIO CORE) SCHEMATIC DIAGRAM • See page 4-15 for JC-19 printed wiring board. • See page 4-121 for waveforms. TO JC-19 BOARD (14/18) JC-19 BOARD (15/18) (SEE PAGE 4-46) AUDIO CORE -REF.NO.:2,000 SERIES- XX MARK:NO MOUNT TO JC-19 BOARD (17/18)

  • Page 51: Digital Audio) Schematic Diagram

    DSR-20MD/20MDP JC-19 (DIGITAL AUDIO) SCHEMATIC DIAGRAM • See page 4-15 for JC-19 printed wiring board. JC-19 BOARD (16/18) DIGITAL AUDIO NO MARK:REC/PB MODE R:REC MODE -REF.NO.:2,000 SERIES- P:PB MODE XX MARK:NO MOUNT R909 27-15 R908 CL003 27-16 CL004 27-13 R905...
  • Page 52 DSR-20MD/20MDP JC-19 (DIGITAL AUDIO) SCHEMATIC DIAGRAM • See page 4-15 for JC-19 printed wiring board. • See page 4-121 for waveforms. J_3.1V JC-19 BOARD (17/18) 27-3 27-4 27-5 DIGITAL AUDIO 27-6 -REF.NO.:2,000 SERIES- 27-7 R943 XX MARK:NO MOUNT 27-8 (NOT USED)

  • Page 53: Audio D/A, A/D Converter) Schematic Diagram

    DSR-20MD/20MDP JC-19 (AUDIO D/A, A/D CONVERTER) SCHEMATIC DIAGRAM • See page 4-15 for JC-19 printed wiring board. • See page 4-121 for waveforms. JC-19 BOARD (18/18) AUDIO D/A, A/D CONVERTER -REF.NO.:2,000 SERIES- XX MARK:NO MOUNT NO MARK:REC/PB MODE IC840 Q832...

  • Page 54: Printed Wiring Board

    DSR-20MD/20MDP RE-32 (V/A IN/OUT) PRINTED WIRING BOARD – Ref. No.: RE-32 board; 7,000 series – • For Printed Wiring Board. • There are few cases that the part isn't mounted in this model is printed on this diagram. V/A IN/OUT...
  • Page 55 DSR-20MD/20MDP RE-32 (V/A IN/OUT) SCHEMATIC DIAGRAM RE-32 BOARD CN102 CL121 V/A IN/OUT MONITOR OUT CL122 -REF.NO.:7,000 SERIES- CL123 Y OUT XX MARK:NO MOUNT CL124 CL125 C OUT CL126 CL127 R114 V OUT R115 CL128 R113 VA-102 BOARD (5/12) CN401 CL129...

  • Page 56: Printed Wiring Board

    • For Printed Wiring Board. DSR-20MD/20MDP • VA-102 board is six-layer print board. However, the patterns of layers 2 to 5 have not been included in the diagram. VA-102 (IF, VIDEO IN/OUT, UVIC, DV IN/OUT, MONITOR OUT, • There are few cases that the part isn't mounted in this model is printed on this diagram.
  • Page 57 DSR-20MD/20MDP 4-62 IF, VIDEO IN/OUT, UVIC, DV IN/OUT, MONITOR OUT, AUDIO, HI MICOM, RS MICOM VA-102 4-61...

  • Page 58: If) Schematic Diagram

    DSR-20MD/20MDP VA-102 (IF) SCHEMATIC DIAGRAM • See page 4-59 for VA-102 printed wiring board. JC-19 BOARD (1/18) JC-19 BOARD (1/18) CN103 CN104 (SEE PAGE 4-20) (SEE PAGE 4-19) VA-102 BOARD (1/12) -REF.NO.:1,000 SERIES- XX MARK:NO MOUNT NO MARK:REC/PB MODE R:REC MODE...

  • Page 59: Video In) Schematic Diagram

    DSR-20MD/20MDP VA-102 (VIDEO IN) SCHEMATIC DIAGRAM • See page 4-59 for VA-102 printed wiring board. • See page 4-122 for waveforms. VIDEO_5V L203 10uH VA-102 BOARD (2/12) IC205 AN3916 IC205 VIDEO IN VA-102 BOARD (3/12) (SEE PAGE 4-67) -REF.NO.:1,000 SERIES-...

  • Page 60: Video Out) Schematic Diagram

    DSR-20MD/20MDP VA-102 (VIDEO IN) SCHEMATIC DIAGRAM • See page 4-59 for VA-102 printed wiring board. • See page 4-122 for waveforms. L216 10uH VIDEO_5V VA-102 BOARD (3/12) VA-102 BOARD (11/12) VIDEO_-5V (SEE PAGE 4-84) R265 R313 2200 Q221 FL204 Q228...
  • Page 61 DSR-20MD/20MDP VA-102 (VIDEO OUT) SCHEMATIC DIAGRAM • See page 4-59 for VA-102 printed wiring board. • See page 4-122 for waveforms. VA-102 BOARD (4/12) VIDEO OUT -REF.NO.:1,000 SERIES- NO MARK:REC/PB MODE R:REC MODE XX MARK:NO MOUNT P:PB MODE 5-10 VA-102 BOARD (1/12)
  • Page 62 DSR-20MD/20MDP VA-102 (VIDEO OUT) SCHEMATIC DIAGRAM • See page 4-59 for VA-102 printed wiring board. • See page 4-122 for waveforms. VA-102 BOARD (5/12) VIDEO OUT VIDEO_5V VA-102 BOARD (6/12) -REF.NO.:1,000 SERIES- (SEE PAGE 4-73) XX MARK:NO MOUNT NO MARK:REC/PB MODE...

  • Page 63: Uvic & Dv In/Out) Schematic Diagram

    DSR-20MD/20MDP VA-102 (UVIC & DV IN/OUT) SCHEMATIC DIAGRAM • See page 4-59 for VA-102 printed wiring board. • See page 4-122 for waveforms. VA-102 BOARD (6/12) UVIC & DV IN/OUT -REF.NO.:1,000 SERIES- R:REC MODE P:PB MODE XX MARK:NO MOUNT *:IMPOSSIBLE TO MEASURE THE NO MARK:REC/PB MODE VOLTAGE AT THE MARKED POINTS.

  • Page 64: Monitor Out) Schematic Diagram

    DSR-20MD/20MDP VA-102 (MONITOR OUT) SCHEMATIC DIAGRAM • See page 4-59 for VA-102 printed wiring board. • See page 4-122, 123 for waveforms. VA-102 BOARD (7/12) R681 TP653 CL659 15-4 MONITOR OUT TP652 R682 CL660 15-3 -REF.NO.:1,000 SERIES- R683 VA-102 BOARD (11/12)

  • Page 65: Audio) Schematic Diagram

    DSR-20MD/20MDP VA-102 (AUDIO) SCHEMATIC DIAGRAM • See page 4-59 for VA-102 printed wiring board. VA-102 BOARD (8/12) AUDIO AUDIO_5V CL718 R721 -REF.NO.:1,000 SERIES- CL715 C734 XX MARK:NO MOUNT 2.2u C732 NO MARK:REC/PB MODE C730 6.3V R741 0.1u R719 IC704 R726...
  • Page 66 DSR-20MD/20MDP VA-102 (AUDIO) SCHEMATIC DIAGRAM • See page 4-59 for VA-102 printed wiring board. AUDIO_-5V VA-102 BOARD (11/12) (SEE PAGE 4-84) VA-102 BOARD (9/12) AUDIO_5V AUDIO A.-4V VA-102 BOARD (11/12) -REF.NO.:1,000 SERIES- A.+4V (SEE PAGE 4-84) XX MARK:NO MOUNT NO MARK:REC/PB MODE...

  • Page 67: Hi Micom) Schematic Diagram

    DSR-20MD/20MDP VA-102 (HI MICOM) SCHEMATIC DIAGRAM • See page 4-59 for VA-102 printed wiring board. • See page 4-123 for waveforms. VA-102 BOARD(10/12) HI MICOM -REF.NO.:1,000 SERIES- FR-136 BOARD XX MARK:NO MOUNT (SEE PAGE 4-107) CN104 NO MARK:REC/PB MODE R1032...
  • Page 68 DSR-20MD/20MDP VA-102 (HI MICOM) SCHEMATIC DIAGRAM • See page 4-59 for VA-102 printed wiring board. VA-102 BOARD (11/12) HI MICOM -REF.NO.:1,000 SERIES- XX MARK:NO MOUNT NO MARK:REC/PB MODE SW_5V UNSW_14V 24-1 24-2 UNSW_6V CL943 D855 MA738-TX D867 R944 D856 MA738-TX...

  • Page 69: Printed Wiring Board

    DSR-20MD/20MDP DSR-20MD/20MDP RS-78 (RS-232C IF) PRINTED WIRING BOARD • For Printed Wiring Board. • There are few cases that the part isn't mounted in this model – Ref. No.: RS-78 board; 6,000 series – is printed on this diagram. RF-232C IF...

  • Page 70: Rs Micom) Schematic Diagram

    DSR-20MD/20MDP RS-78 (RS-232C IF), VA-102 (RS MICOM) SCHEMATIC DIAGRAM • See page 4-85 for RS-78 printed wiring board and page 4-59 for VA-102 printed wiring board. • See page 4-123 for waveforms. IC053 VA-102 CL073 IC053 TC7WU04FU(TE12R) BOARD (12/12) RS MICOM -REF.NO.:1,000 SERIES-...

  • Page 71: Printed Wiring Boards

    DSR-20MD/20MDP MD-63, MD-64, MD-65 (TAPE DETECT), FP-406 (TAPE SENSOR) PRINTED WIRING BOARDS – Ref. No. : MD-63 board; 6,000/MD-64 board; 7,000/MD-65 board; 5,000/FP-406 boad; 5,000 series – • For Printed Wiring Board. • There are few cases that the part isn't mounted in this model is printed on this diagram.
  • Page 72 DSR-20MD/20MDP MD-63, MD-64, MD-65 (TAPE DETECT), FP-406 (TAPE SENSOR) SCHEMATIC DIAGRAM • See page 4-89 for MD-63, MD-64, MD-65, FP-406 printed wiring boards. MD-63 BOARD FP-406 BOARD MD-64 BOARD TAPE SENSOR TAPE DETECT NO MARK:REC/PB MODE TAPE DETECT ( ):WITHOUT A CASSETTE -REF.NO:5,000 SERIES-...

  • Page 73: Printed Wiring Board

    DSR-20MD/20MDP HP-100 (HEADPHONE & REC VR) PRINTED WIRING BOARD – Ref. No.: HP-100 board; 5,000 series – • For Printed Wiring Board. • HP-100 board is six-layer print board. However, the patterns of layers 2 to 5 have not been included in the diagram.
  • Page 74 DSR-20MD/20MDP HP-100 (HEADPHONE & REC VR) SCHEMATIC DIAGRAM • See page 4-93 for HP-100 printed wiring board. HP-100 BOARD HEADPHONE & REC VR R007 6800 C007 -REF.NO.:5,000 SERIES- R008 CL010 FB001 XX MARK:NO MOUNT NO MARK:REC/PB MODE R011 C004 IC001...

  • Page 75: Printed Wiring Board

    DSR-20MD/20MDP CM-56 (SERVO, SYSTEM CONTROL) PRINTED WIRING BOARD – Ref. No.: CM-56 board; 4,000 series – • For Printed Wiring Board. • There are few cases that the part isn't mounted in this model is printed on this diagram. • See page 4-126 for printed parts location.
  • Page 76 DSR-20MD/20MDP CM-56 BOARD (SIDE B) :DSR-20MDP :DSR-20MD 1-668-405- SERVO, SYSTEM CONTROL CM-56 4-99 4-100...
  • Page 77 DSR-20MD/20MDP CM-56 (SERVO, SYSTEM CONTROL) SCHEMATIC DIAGRAM • See page 4-97 for CM-56 printed wiring board. • See page 4-123 for waveforms. CM-56 BOARD (1/2) SERVO,SYSTEM CONTROL NO MARK:REC/PB MODE R:REC MODE -REF.NO.:4,000 SERIES- P:PB MODE XX MARK:NO MOUNT :IMPOSSIBLE TO MEASURE THE VOLTAGE AT THE MARKED POINTS.
  • Page 78 DSR-20MD/20MDP CM-56 (SERVO, SYSTEM CONTROL) SCHEMATIC DIAGRAM • See page 4-97 for CM-56 printed wiring board. • See page 4-123, 124 for waveforms. NO MARK:REC/PB MODE CM-56 BOARD (2/2) SERVO,SYSTEM CONTROL R:REC MODE -REF.NO.:4,000 SERIES- P:PB MODE XX MARK:NO MOUNT :IMPOSSIBLE TO MEASURE THE VOLTAGE AT THE MARKED POINTS.

  • Page 79: Printed Wiring Board

    DSR-20MD/20MDP FR-136 (DISPLAY CONTROL) PRINTED WIRING BOARD – Ref. No.: FR-136 board; 5,000 series – • For Printed Wiring Board. FR-136 • There are few cases that the part isn't mounted in this model BOARD(SIDE A) is printed on this diagram.
  • Page 80 DSR-20MD/20MDP FR-136 (DISPLAY CONTROL) SCHEMATIC DIAGRAM • See page 4-105 for FR-136 printed wiring board. FR-136 BOARD VA-102 BOARD (10/12) DISPLAY CONTROL CN851 (SEE PAGE 4-81) -REF.NO.:5,000 SERIES- XX MARK:NO MOUNT NO MARK:REC/PB MODE R :REC MODE P :PB MODE * :IMPOSSIBLE TO MEASURE THE VOLTAGE AT THE MARKED POINTS.
  • Page 81 DSR-20MD/20MDP HG-1 (OVER DISCHARGE PROTECT) PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM – Ref. No.: HG-1 board; 8,000 series – • For Printed Wiring Board. • There are few cases that the part isn't mounted in this model is printed on this diagram.

  • Page 82: Printed Wiring Board

    • There are few cases that the part isn't mounted in this model – Ref. No.: U-1 board; 10,000 series – is printed on this diagram. • See page 4-126 for printed parts locaiotn. BOARD (SIDE A) DSR-20MD : 1-468-441- DSR-20MDP : 1-468-442- BOARD (SIDE B) DSR-20MD : 1-468-441- DSR-20MDP : 1-468-442-...
  • Page 83 DSR-20MD/20MDP U-1 (POWER 1) SCHEMATIC DIAGRAM U-1 BOARD POWER 1 -REF, NO :10,000 SERIES- UF4005 XX MARK :NO MOUNT :DSR-20MD NO MARK :E-E MODE P.T. D5LC20U UF4007G23 :DSR-20MDP 8, 9 AC IN AC IN 6mH:DSR-20MD 3.15A 125V:DSR-20MD 5.6mH:DSR-20MD 15mH:DSR-20MDP 0.1µF T1.6AL...
  • Page 84 • There are few cases that the part isn't mounted in this model – Ref. No.: U-2 board; 20,000 series – is printed on this diagram. • See page 4-126 for printed parts locaiotn. BOARD (SIDE A) DSR-20MD : 1-468-441- DSR-20MDP : 1-468-442- BOARD (SIDE B) DSR-20MD : 1-468-441- DSR-20MDP : 1-468-442-...
  • Page 85 DSR-20MD/20MDP U-2 (POWER 2) SCHEMATIC DIAGRAM -REF, NO :20,000 SERIES- U-2 BOARD XX MARK :NO MOUNT POWER 2 NO MARK :E-E MODE 150uH D5S4M 15.6 15.1 AC BLOCK +12V PQ30RV21 AC BLOCK +12V TO HG-1 BOARD DC +12V CN10 DC +12V (SEE PAGE 4-110) 0.01...

  • Page 86: Waveforms

    4-3. WAVEFORMS RP-228 BOARD JC-19 BOARD 0.54 Vp-p 3.0 Vp-p 3.0 Vp-p 3.4 Vp-p 4.3 Vp-p 3.4 Vp-p 13.5 MHz 0.04 µsec 41.8 MHz 6.6 msec IC772 2 – 8 PB IC015 – IC017 qs REC/PB IC205 qk, w; REC/PB IC411 tk REC/PB IC774 ql REC/PB Q045 E PB...
  • Page 87 JC-19 BOARD 3.1 Vp-p 3.2 Vp-p 3.0 Vp-p 18.1 MHz 18.16 MHz 1.1 msec IC422 rk, rl REC/PB IC701 rj REC/PB IC805 y; PB 3.2 Vp-p 3.1 Vp-p 2.5 Vp-p 100 nsec 36.3 MHz 33 msec is – ig, ij – o; IC701 REC/PB IC422 tg REC/PB...
  • Page 88 2.0 Vp-p 0.42 Vp-p IC205 qa REC Q228 5 REC/PB IC402 7 REC/PB 1.8 Vp-p 1.0 Vp-p 4.6 Vp-p DSR-20MD: 14.32 MHz DSR-20MDP: 17.73 MHz IC205 qf REC Q224 5 REC IC405 9 REC/PB REC 0.32 Vp-p 0.8 Vp-p 1.0 Vp-p 1.6 Vp-p...
  • Page 89 VA-102 BOARD CM-56 BOARD 3.0 Vp-p 0.28 Vp-p 1.0 Vp-p 1.1 msec 6.6 msec IC651 wg REC/PB IC003 5 REC/PB IC011 1 REC/PB 30 mVp-p 3.1 Vp-p 1.0 Vp-p 3.3 msec 6.6 msec IC653 7 REC/PB IC003 6 REC/PB IC011 6 REC/PB 3.0 Vp-p 4.4 Vp-p 1.9 Vp-p...
  • Page 90 CM-56 BOARD 0.1 Vp-p 100 msec IC503 8 – qd REC/PB 2.5 Vp-p 1.1 msec IC021 1, wl, ea REC/PB 0.1 Vp-p 390 msec IC022 8 – qd REC/PB 1.3 Vp-p 390 msec IC022 wa – wd REC/PB 4-124...

  • Page 91: Printed Parts Location

    4-4. PRINTED PARTS LOCATION RP-228 BOARD RP-228 BOARD JC-19 BOARD JC-19 BOARD VA-102 BOARD VA-102 BOARD (SIDE A) (SIDE B) (SIDE A) (SIDE B) (SIDE A) (SIDE B) CN101 CN103 CN103 CN101 CN051 CN601 Q703 CN102 CN104 CN503 CN101 CN852 Q704 CN771 D771...
  • Page 92 CM-56 BOARD CM-56 BOARD U-1 BOARD U-2 BOARD (SIDE A) (SIDE B) (SIDE B) (SIDE B) CN001 CN004 CN002 CN006 CN003 CN007 CN10 CN005 CN11 CN008 D001 CN12 D002 CN13 D004 D012 D011 D501 IC001 D502 IC002 IC006 IC003 IC011 IC005 IC012 IC008...

  • Page 93: Adjustments

    DSR-20MD/20MDP SECTION 5 ADJUSTMENTS 5-1. MECHANICAL SECTION ADJUSTMENTS 5-1-1. INFORMATION 1-1. HOW TO SEARCH REFERENCE PAGES FOR REMOVAL • To facilitate finding the required pages on how to removing and attaching parts, reference pages are listed in the remarks of the exploded views (6-4 to 6-9 pages) in the 5-1.

  • Page 94: Preparation For Mechanical Check, Adjustment And Maintenance

    5-1-2. PREPARATION FOR MECHANICAL CHECK, ADJUSTMENT AND MAINTENANCE 2-1. FL BLOCK ASSEMBLY • Removing/Attaching • For removal of mcechanism deck, refer to 2-5. Removal of MD BLOCK ASSEMBLY. Two screws (PS2 × 6) Same as the left side. Fixing torque: 0.2942 N•m (3.0 kg•cm) 2-2.

  • Page 95: Loading/Unloading

    2-3. LOADING/UNLOADING [Using the DC power supply] : With a loading motor [Manual] : Without a loading motor Note: Be sure to disconnect the connector of the loading motor Note: If the LM worm wheel is rotated in the state shown in before servicing.

  • Page 96: Service Jigs List

    2-5. SERVICE JIGS LIST Ref. No. Name Part No. Fixtur No. Usage, Others Application, etc Cleaning fluid Y-2031-001-0 For cleaning drum assembly and tape guide Wiping cloth 7-741-900-53 For cleaning drum assembly Super fine applicator For cleaning tape guide (Made by NIPPON APPLICATOR (P752D)) Mirror (Small oval type) J-6080-840-A GD-2038...
  • Page 97 J-10 J-11 J-12 J-13 J-14 • Attach the jigs TG2/7 preset plate (J-9) Reel standard plate (J-8) Cassette standard plate (J-7) Cassette standard plate (J-7) short long Flat wire cable (16P) Flat wire cable (9P) Tension regulator adjustment board (J-13)

  • Page 98: Phase Adjustments

    5-1-3. PHASE ADJUSTMENTS • This section classifies the phase adjustment into three blocks for clarity. The attaching order of each part is not described here. For details of the attaching order, refer to “5-1-5. MECHANISM SECTION CHECKS AND REPLACEMENTS”. 3-1. PHASE ADJUSTMENT (Loading/Unloading Driving Section) Note 1: Adjust it at the UNLOADING position unless otherwise specified.
  • Page 99 PHASE ADJUSTMENT C PHASE ADJUSTMENT D FL joint arm assembly FL selection arm TG3/4 gear TG5/6 gear TG7 cam gear T cam gear PHASE ADJUSTMENT E TG7 selection arm T cam gear M slider arm M slider PHASE ADJUSTMENT F PHASE ADJUSTMENT G The holes of the chasis and the TC gear are aligned.

  • Page 100: Phase Adjustment (S/L Cassette Selection Section)

    3-2. PHASE ADJUSTMENT (S/L Cassette Selection Section) Note 1: Adjust if at the S/L cassette position unless otherwise specified. Note 2: H to M shown below are the orders for the phase adjustment. RS gear RS arm assembly assembly Rack joint gear Rack holder Reel motor MIC lever...
  • Page 101 PHASE ADJUSTMENT K PHASE ADJUSTMENT L Rack joint gear Rack joint gear RS gear assembly MIC holder (Front side) MIC lever MIC lever (Front side) Rack holder The holes of the MIC lever and the Note: 2 should be aligned with the hole of the chassis. RS gear assembly are aligned.

  • Page 102: Phase Adjustment (Mechanism Chassis Upper Surface Parts)

    3-3. PHASE ADJUSTMENT (Mechanism Chassis Upper Surface Parts) Note: Adjust if at the UNLOADING position unless otherwise specified. PHASE ADJUSTMENT N PHASE ADJUSTMENT P S reel plate assembly T reel plate assembly Insert it into the long hole at the part.
  • Page 103 PHASE ADJUSTMENT S PHASE ADJUSTMENT T Insert it into the groove at the part. TC arm assembly Insert it into the groove at the part. TG2 selection arm Main cam TC gear PHASE ADJUSTMENT U PHASE ADJUSTMENT V TG2 load arm assembly TG7 load arm assembly Insert it into the groove at the...

  • Page 104: Periodic Check And Maintenance

    5-1-4. PERIODIC CHECK AND MAINTENANCE 4-2. CLEANING OF TAPE PATH SYSTEM • Carry out the following maintenance and periodic checks not only to fully display the functions and performance of the set, (See Fig. 1.) but also for the equipment and tape. After repairing, service the set as follows, regardless of the length of use.

  • Page 105: Periodic Checks

    4-3. PERIODIC CHECKS Hours of Use (H) Location of Maintenance Remarks and Check 1000 1500 2000 2500 3000 3500 4000 4500 5000 Cleaning of tape path surface Take care not to Cleaning and degaussing of adhere the oil. rotary drum assembly Make sure that no oil Capstan shaft (Bearing) –...

  • Page 106: Mechanism Section Checks And Replacements

    5-1-5. MECHANISM SECTION CHECKS AND REPLACEMENTS 5-1. TAPE STOPPER, MOTOR FPC ASSEMBLY AND ELASTIC CONNECTOR • Removing/Attaching • Removing: 1 → 2 → 3 → 4 → 5 → 6 • Attaching : 6 → 5 → 4 → 3 → 2 → 1 → Adjust them according to the flowchart (START-3) on page 5-43. 3 Two special head screws (M1.4 ×...

  • Page 107: Lm Cover, Lm Worm Wheel, Lm Holder And Lm Motor Assembly

    PH-G : Page 5-7 PH-S : Page 5-11 5-3. LM COVER, LM WORM WHEEL, LM HOLDER AND LM MOTOR ASSEMBLY • Removing/Attaching • Removing: 1 → 2 → 3 → 4 → 5 → 6 • Attaching : 6 → 5 → 4 → 3 → 2 → 1 6 LM cover 3 Two screws (TTP2 ×...

  • Page 108: Pinch Arm Assembly, Pinch Limiter And Tension Coil Spring (Pinch)

    PH-G : Page 5-7 5-5. PINCH ARM ASSEMBLY, PINCH LIMITER 3. Flexible board. AND TENSION COIL SPRING (PINCH) Flexible board 1. Removing 1. Set the UNLOADING position. (Refer to page 5-3) 2. Pinch arm block assembly. PH-G Pinch arm block assembly Claw CN201 (MD-65 board) Note: After check the phase adjustment PH-G , attach the pinch...

  • Page 109: Rl Arm And Rl Link

    5-7. RL ARM AND RL LINK • Removing/Attaching ( L cassette position. (Refer to page 5-2)) • Removing: 1 → 2 → 3 • Attaching : 3 → 2 → 1 2 RL arm 1 RL press spring Claw 3 RL link 5-8.

  • Page 110: Tension Coil Spring (Tg2), Spring Adjustor

    PH-T : Page 5-11 5-9. TENSION COIL SPRING (TG2), SPRING 2. Attaching 1. Attach the parts in the order of 1 → 4 → 2 → 3. ADJUSTOR, TG2 SPRING HOOK, TG2 SELECTION ARM AND DAMPER SHEET 2. Adjust them according to the flowchart (START-2) on page 5-43.

  • Page 111: Tg2 Retainer, Tg2 Arm Assembly (Tg2 Plate Spring And Et Magnet), S Tension Regulator Band Assembly And Tg2 Load Arm Assembly

    PH-U , PH-W : Page 5-11 5-11. TG2 RETAINER, TG2 ARM ASSEMBLY (TG2 PLATE SPRING AND ET MAGNET), S TENSION REGULATOR BAND ASSEMBLY AND TG2 LOAD ARM ASSEMBLY 1. Removing 6. TG2 load arm assembly. 1. Tension coil spring (TG2), spring adjustor, LM motor block assembly and TG2 spring hook.

  • Page 112: Tg7 Retainer, Tg7 Arm Assembly (Tg7 Plate Spring And Et Magnet), T Tension Regulator Band Assembly And Tg7 Load Arm Assembly

    PH-V , PH-X : Page 5-11 5-12. TG7 RETAINER, TG7 ARM ASSEMBLY (TG7 PLATE SPRING AND ET MAGNET), T TENSION REGULATOR BAND ASSEMBLY AND TG7 LOAD ARM ASSEMBLY 1. Removing 1. Tension coil spring (TG7), spring adjustor. 5. TG7 plate spring, ET magnet and T tension regulator band assembly.

  • Page 113: S Reel Table Block Assembly

    5-13. S REEL TABLE BLOCK ASSEMBLY 1. Removing 1. Set the L cassette position. (Refer to page 5-2) 4. S band adjustor. 2. RL arm S band adjustor RL arm 1 Claw RL press Claw spring 3 Avoid TG2 arm assembly S tension regulator band assembly 5.

  • Page 114: T Reel Holder And T Reel Table Block Assembly

    PH-Q : Page 5-10 5-14. T REEL HOLDER AND T REEL TABLE 5-15. S REEL PLATE ASSEMBLY BLOCK ASSEMBLY 1. Removing 1. Removing 1. Set the L cassette position. (Refer to page 5-2) 1. Set the L cassette position. (Refer to page 5-2) 2.
  • Page 115 PH-N : Page 5-10 5. RL arm and RL link. 7. Plate spring 1 RL press spring PH-N S reel plate assembly 2 RL arm Claw 3 RL link Plate spring 8. S reel plate assembly. S reel table block assembly •...

  • Page 116: T Reel Plate Assembly

    PH-P , PH-R : Page 5-10 5-16. T REEL PLATE ASSEMBLY 5. Plate spring. 1. Removing PH-P T reel plate assembly 1. Set the L cassette position. (Refer to page 5-2) 2. T band adjustor. T band adjustor 1 Claw Plate spring Pay attention to the direction.

  • Page 117: Tg1/8 Base Assembly, S Brake And T Ratchet

    PH-Q , PH-R : Page 5-10 5-17. TG1/8 BASE ASSEMBLY, S BRAKE AND T RATCHET 1. Removing 1. Set the LOADING / L cassette positions. (Refer to pages 5-2 to 5-3) 2. TG1/8 base assembly. • Removing: 1 → 2 → 3 → 4 → 5 → 6 •...

  • Page 118: Tg3/6 Roller Assembly And Tg3/6 Lock Spring

    5-18. TG3/6 ROLLER ASSEMBLY AND TG3/6 LOCK SPRING • Removing/Attaching Note: UNLOADING position. (Refer to page 5-3) TG3 roller assembly TG6 roller assembly (No. 3 guide) (No. 6 guide) TG3 lock spring TG6 lock spring Standard position. Preset the height as shown in the figure. Note: After attaching each part, adjust them according to the flowchart (START-3) on page 5-43.

  • Page 119: Fl Selection Arm, Fl Relay Gear And Fl Joint Arm Assembly

    PH-A : Page 5-6 PH-D , PH-G : Page 5-7 5-20. FL SELECTION ARM, FL RELAY GEAR AND FL JOINT ARM ASSEMBLY • Removing/Attaching Note: First, remove the FL joint gear. (Refer to 5-19) Stopper washer (1.5) FL relay gear FL joint arm assembly Claw PH-D FL selection arm...

  • Page 120: Gl Arm Retainer And Gl Arm

    PH-B : Page 5-6 PH-R : Page 5-10 PH-D , PH-E , PH-F : Page 5-7 PH-V : Page 5-11 5-22. GL ARM RETAINER AND GL ARM 5-24. TG7 SELECTION ARM, TG7 CAM GEAR AND T CAM GEAR • Removing/Attaching ( UNLOADING position. (Refer to 1.

  • Page 121: Main Cam, Tg2 Sl Arm Assembly And Tension Coil Spring (Tg2 Sl)

    PH-A : Page 5-6 PH-G : Page 5-7 PH-T , PH-U : Page 5-11 5-25. MAIN CAM, TG2 SL ARM ASSEMBLY AND TENSION COIL SPRING (TG2 SL) The two grooves on one side of the main cam drive the TG2 selection arm and the TG2 load arm assembly. Since it is difficult to attach the main cam, fix the TG2 selection arm and the TG2 load arm assembly with the main cam’s phase adjusted correctly (Nearly unloading position (See 3-1.

  • Page 122: Tg3/4 Arm Block Assembly (Tg3/4 Arm Assembly, Tg3/4 Limiter Spring And Tg3/4 Gear), Tg3/4 Base Block Assembly (Tg3/4 Base Assembly)

    PH-A : Page 5-6 PH-F , PH-G : Page 5-7 5-26. TG3/4 ARM BLOCK ASSEMBLY (TG3/4 ARM ASSEMBLY, TG3/4 LIMITER SPRING AND TG3/4 GEAR), TG3/4 BASE BLOCK ASSEMBLY (TG3/4 BASE ASSEMBLY) 1. Removing 4. TG3/4, TG5/6 catcher block assembly and pinch cam gear. 1.
  • Page 123 PH-C : Page 5-7 0. TG3/4 arm assembly, TG3/4 limiter spring, TG3/4 gear, TG3/ 7. Set the LOADING position. (Refer to page 5-3) 6 roller assembly, TG3 lock spring and TG3/4 base assembly. 8. TG3/4 arm block assembly. • Removing: 1 → 2 → 3 TG3/4 arm assembly TG3/6 roller assembly Cannot be removed.

  • Page 124: Tg5/6 Arm Block Assembly (Tg5/6 Arm Assembly, Tg5/6 Limiter Spring And Tg5/6 Gear), Tg5/6 Base Block Assembly (Tg5/6 Base Assembly)

    PH-F , PH-G : Page 5-7 5-27. TG5/6 ARM BLOCK ASSEMBLY (TG5/6 ARM ASSEMBLY, TG5/6 LIMITER SPRING AND TG5/6 GEAR), TG5/6 BASE BLOCK ASSEMBLY (TG5/6 BASE ASSEMBLY) 1. Removing 4. TG3/4, TG5/6 catcher block assembly, screw of capstan mo- 1. Set the UNLOADING position. (Refer to page 5-3) tor and pinch cam gear.
  • Page 125 PH-C : Page 5-7 0. TG5/6 arm assembly, TG5/6 limiter spring, TG5/6 gear, TG3/ 7. Set the LOADING position. (Refer to page 5-3) 6 roller assembly, TG6 lock spring and TG5/6 base assembly. 8. TG3/4 arm block assembly and TG5/6 arm block assembly. •...

  • Page 126: Reel Motor

    PH-K , PH-L , PH-M : Page 5-9 5-28. REEL MOTOR 5-30. RS GEAR ASSEMBLY, MIC PRESS SPRING AND MIC LEVER • Removing/Attaching 1. Removing 1. Set the S/L cassette position. (Refer to page 5-2) Three screws (M1.4 × 2.5) 2.

  • Page 127: Rack Joint Gear, Rack Holder, Mic Holder, Rack (Lc) And Rack (Sc)

    PH-D : Page 5-7 PH-J : Page 5-8 PH-K : Page 5-9 5-31. RACK JOINT GEAR, RACK HOLDER, MIC HOLDER, RACK (LC) AND RACK (SC) 6. FL block assembly. (Refer to page 5-2) 1. Removing 1. FL joint gear, TG7 selection arm. 7.

  • Page 128: Plate Link Assembly

    PH-P , PH-Q , PH-R : Page 5-10 5-32. PLATE LINK ASSEMBLY 4. S and T band adjustor. 1. Removing S and T band adjustor 1. Set the L cassette position. (Refer to page 5-2) 1 Claw 2. RL arm. RL arm RL press Claw...
  • Page 129 PH-H : Page 5-8 PH-M : Page 5-9 PH-N : Page 5-10 7. S reel plate assembly. 0. Plate link assembly. PH-H Plate link assembly PH-N S reel plate assembly Plate spring 2. Attaching 1. Attach the parts in the order of 8 → 0 → 9 → 7 → 6 → 8.

  • Page 130: Roller Shaft Assembly And Roller Belt

    5-33. ROLLER SHAFT ASSEMBLY AND ROLLER BELT • Removing/Attaching • When attaching 6 Roller belt 5 Roller shaft assembly • When removing H slider (R) asembly 1 Two screws (M1.4 × 2.5) Fixing torque: 0.0981 N•m (1.0 kg•cm) 5-38...

  • Page 131: Lid Opener

    5-34. LID OPENER • Removing/Attaching Lid opener C slider (R) Bend with holding here. Lid opener 5-39...

  • Page 132: C Door

    5-35. C DOOR 5-37. GEAR (A), GEAR (B) AND C WORM • Removing/Attaching 1. Removing 1. FL block assembly. (Refer to page 5-2) 2. Screw. (M1.4 × 2.5) Screw (M1.4 × 2.5) Damper arm C door Fixing torque: 0.0981 N•m (1.0 kg•cm) 3.

  • Page 133: Spring And C Sloat Block Assembly

    5-38. TENSION COIL SPRING (HS), TENSION SPRING (DB), SHIFT PLATE SPRING AND C SLOAT BLOCK ASSEMBLY • Removing/Attaching (Remove the FL block assembly. (Refer to page 5-2)) Tension coil spring 5 Shift plate spring (HS) 6 C out arm 3 Door stopper Claw 1 Slide...

  • Page 134: Adjustments And Checks

    5-1-6. ADJUSTMENTS AND CHECKS 6-1. ADJUSTMENT POSITION Tracking adjustment Tracking adjustment (exit side) (entrance side) RVS back tension adjustment FWD back tension adjustment (Spring adjustor) (Spring adjustor) TG3 guide TG7 guide TG2 guide TG6 guide FWD position adjustment RVS position adjustment (S band adjustor) (T band adjustor) TG2 height adjustment...

  • Page 135: Adjustment Order

    6-2. ADJUSTMENT ORDER START-1 REEL TABLE HEIGHT ADJUSTMENT (Refer to page 5-44) START-2 TG2/TG7 HEIGHT ADJUSTMENT (Refer to page 5-45) FWD/RVS POSITION ADJUSTMENT TG2/TG7 ELECTRIC TENSION REGULATOR ADJUSTMENT START-3 (Refer to page 5-49) FWD/RVS BACK TENSION ADJUSTMENT RF WAVEFORM CHECK TRACKING ADJUSTMENT TRACKING CHECK CUE/REV CHECK...

  • Page 136: Adjustment And Checking Method

    6-3. ADJUSTMENT AND CHECKING METHOD 6-3-1. REEL TABLE HEIGHT ADJUSTMENT 1. Preparation before adjustment FL block: Remove. Position : LOADING / S cassette Jig used : Cassette standard plate (J-7), Reel standard plate (J-8) and screwdriver (+) 2. Adjusting Screw driver (+) Cassette standard plate (J-7) Reel standard plate (J-8) The reel...

  • Page 137: Tg2/Tg7 Height Adjustment

    6-3-2. TG2/TG7 HEIGHT ADJUSTMENT 1. Preparation before adjustment FL block: Remove. Position : LOADING / S cassette Jig used : Cassette standard plate (J-7), TG2/7 preset plate (J-9) and screwdriver (For attaching jigs, refer to page 5-5) 2. Adjusting [TG2 guide side] [TG7 guide side] TG2/7 preset plate (J-9) TG2/7 preset plate (J-9)

  • Page 138: Tg2/Tg7 Electric Tension Regulator Adjustment

    6-3-4. TG2/TG7 ELECTRIC TENSION REGULATOR ADJUSTMENT 1. Preparation before adjustment FL block: Remove. Position : LOADING (The pinch roller should be stuck) / S cassette Jig used : Cassette standard plate (J-7), TG2/7 preset plate (J-9) and screwdriver for tape path (For attaching jigs, refer to page 5-5) 2.
  • Page 139 4. Adjustment order START 1 TG2: 1.3 V ADJUSTMENT (MD-63 board: RV101) 2 TG2: 2.5 V ADJUSTMENT (MD-63 board: RV102) 3 TG2: 1.3 V CHECK 4 TG2: 1.3 V ADJUSTMENT (MD-63 board: RV101) 5 TG2: 2.5 V CHECK 6 TG7: 1.3 V ADJUSTMENT (MD-64 board: RV001) 7 TG7: 2.5 V ADJUSTMENT (MD-64 board: RV002) 8 TG7: 1.3 V CHECK 9 TG7: 1.3 V ADJUSTMENT (MD-64 board: RV001)

  • Page 140: Fwd/Rvs Back Tension Adjustment

    6-3-5. FWD/RVS BACK TENSION ADJUSTMENT 1. Preparation before adjustment Mechanism deck: Install to the unit. Jig used : Mini DV torque cassette (J-6), pinset (For change the hooking of spring) 2. Adjusting Note: At the FWD (TG2) side, measure the Mini DV torque cassette (J-6) in the FWD mode. At the RVS (TG7) side, measure the Mini DV torque cassette (J-6) in the RVS mode.

  • Page 141: Adjustment Preparations And Rf Waveform Check

    6-3-6. ADJUSTMENT PREPARATIONS AND RF WAVEFORM CHECK 1 Cleran the tape path surface ( part). Note: Do not rotate the adjustment screw. When “NG”, perform adjustments according to the flowchart on page Drum Capstan 5-43. Pinch roller 7 RF WAVEFORM CHECK Entrance side Exit side Tracking tape (XH2-1)

  • Page 142: Tracking Adjustment

    6-3-7. TRACKING ADJUSTMENT RF waveform 3 Make the waveform flat. Entrance side Exit side Note: Do not rotate the adjustment screw. Entrance side (TG3) Exit side (TG6) Normal. Faulty entrance side. (Correct with TG3) Tracking tape Faulty exit side. (Correct with TG6) 1 Connection.

  • Page 143: Tracking Check

    6-3-8. TRACKING CHECK 4 When the waveform’s amplitude of CUE (or REV) is A (=100%), check the difference between the minimum amplitude (Emin) and the maximum amplitude (Emax) for FWD is 30% or less. Waveform in CUE or REV. 3 TRACKING WAVEFORM CHECK-1 A=100% 0.65A A Waveform in FWD.

  • Page 144: Cue And Rev Check

    6-3-9. CUE AND REV CHECK Waveform in CUE or REV. 3 Check the waveform in the M mode. (see the left figure) OK: The distance between peaks should be equal. 4 Check the waveform in the m mode. (see the left figure) If 3 or 4 is “NG”, perform “6-3-7.

  • Page 145: Rising Check

    6-3-10. RISING CHECK Repeat the rising Checks 4 to 6. THE FINAL ADJUSTMENT OF TG7 HEIGHT 3 Check the slack of tape around the pinch roller during 4 RISING CHECK-1 each rising check. This waveform should rise within two If the slack is not corrected, adjust the height of TG7, and seconds after the playback button is readjust electric tension regulator of TG7.

  • Page 146: Tape Path Check

    6-3-11. TAPE PATH CHECK 2 It will be okayed, if there is no curls at the guides, capstan, etc. (a part) in the M and m mode. The following is ideal, but, it is satisfactory if the RF waveform is normal. Leaving space is available.

  • Page 147: Service Mode

    5-2. SERVICE MODE • Changing the address The address increases when the FF (M) button is pressed, and decreases when the REW (m) button is pressed. There 5-2-1. ADJUSTING REMOTE COMMANDER are altogether 256 addresses, from 00 to FF. • Changing the data (Data setting) The adjusting remote commander is used for changing the calcu- The data increases when the PLAY (N) button is pressed, lation coefficient in signal processing, EVR data, etc.

  • Page 148: Data Processing

    5-2-2. DATA PROCESSING The calculation of the adjusting remote commander display data (hexadecimal notation) are required for obtaining the adjustment data of some adjustment items. In this case, after converting the hexadecimal notation to decimal notation, calculate and convert the result to hexadecimal notation, and use it as the adjustment data.

  • Page 149: Service Mode

    5-2-3. SERVICE MODE 1) Select page: 0, address: 01, and set data: 01. 2) Select page: C, address: 30, set data: 00, and press the PAUSE 1. Emergence Memory Address button of the adjusting remote commander. 3) Select page: C, address: 31, set data: 00, and press the PAUSE Page C Addresses 30 to 3B button of the adjusting remote commander.

  • Page 150: Video Section Adjustments

    • For extension between CN006 of the CM-56 board and the reel motor (M904) (15P, 1.25 mm) (J-6902-354-A) • For extension between CN001 of the CM-56 board and CN101 of the MD-63 board (16P, 1 mm) (J-6082-020-A) 16) Regulated power supply NTAC : DSR-20MD : DSR-20MDP 5-58...

  • Page 151: Adjusting Connectors (Rp 228 Board Cn775)

    S VIDEO If DV input is specified (Note) MONITOR TV VIDEO NTSC: VX1000/PAL: DCR-VX1000E INPUT OUT PUT NTSC: DSR-20MD PAL : DSR-20MDP DV terminal Note: How to generate color bars: Connect the adjusting remote commander to the NTSC: VX1000/ PAL: \DCR-VX1000E, and select page: 5, address: 02, and set data: 09.

  • Page 152: Checking The Input Signals

    <0.286> [0.30] V and flat, and that the red signal amplitude of the chroma signal is approxi- mately <0.66> [0.67] V. The Y and chroma signals used in the adjustment are shown in Fig. 5-3-2. NTAC : DSR-20MD < >: NTSC model : DSR-20MDP...
  • Page 153 (XH5-6 (NTSC), XH5-6P (PAL)) Table 5-3-2. Fig. 5-3-4. shows the 75% color bar signals recorded on the align- NTAC : DSR-20MD ment tape for Audio Operation Check (NTSC). Note : Measure with video terminal (Terminated at 75 Ω) : DSR-20MDP...

  • Page 154: Input/Output Level And Impedance

    3-1-6. Input/ Output Level and Impedance 3-2. POWER SUPPLY SYSTEM ADJUSTMENT LINE IN 1. Power Supply Voltage Check Video input BNC connector Power Block (U-2 Board) Input signal: 1 Vp-p Mode Playback (75 ohms unbalanced) Measuring Instrument Digital voltmeter S Video input Mini DIN 4-pin Luminance signal: 1 Vp-p UNSW6V Check...

  • Page 155: System Control System Adjustment

    5. Modification of C, D, E, Page Data 3-3. SYSTEM CONTROL SYSTEM ADJUSTMENT If the C, D, E page data has been initialized, change the data of the “Fixed data-2” address shown in the following tables by manual 1. Initializing the C, D, E Page Data input.

  • Page 156: Page C Address List

    Page C Address List Page D Address List Note 1: Fixed data 1: Initialized data. (Refer to 2. Input of C Page Note 1: Fixed data 1: Initialized data. (Refer to 3. Input of D Page Initial Data) Initial Data) Fixed data 2: Modified data.

  • Page 157: Page E Address List

    Page E Address List Note 1: Fixed data 1: Initialized data. (Refer to 4. Input of E Page Initial Data) Fixed data 2: Modified data. (Refer to 5. Modification of C, D, E, Page Data) Address Initial Value Remark 00 to 1B Fixed data 1 (Initial data) Fixed data 2 (Changed data.

  • Page 158: Servo System Adjustments

    3-4. SERVO SYSTEM ADJUSTMENTS 2. Capstan FG Duty Adjustment (CM-56 Board) Mode Playback 1. Switching Position Adjustment (CM-56 Board) signal Arbitrary tape Mode Playback Page: 3, address: 03 on displayed data of Measurement Point signal SW/OL reference tape adjusting remote commander Page: 3, address: 03 on displayed data of Measuring Instrument Adjusting remote commander...

  • Page 159: Video System Adjustments

    3-5. VIDEO SYSTEM ADJUSTMENTS 3-5-1. RP-228 Board Adjustments 2. PLL fo Adjustment (RP-228 Board) 1. Recording Current Adjustment (RP-228 Board) Mode Mode Measurement Point Displayed data of page: 3, ODDch adjustment Measuring Instrument address: 04 CH1: Pin 6 of CN771 (CL812) CH2: Pin 5 of CN771 (CL813) Adjustment Page Measurement Point...

  • Page 160: Clk Delay Adjustment (Rp-228 Board)

    4. AGC Center Level Adjustment (RP-228 Board) 3. CLK DELAY Adjustment (RP-228 Board) Mode Recording/playback Mode Recording/playback Signal Color bar Signal Color bar CH1: Pin qk of CN775 (C1ERP) CH1: Pin qk of CN775 (C1ERP) Measurement Point Measurement Point CH2: Pin 6 of CN775 (JSWP) CH2: Pin 6 of CN775 (JSWP) Oscilloscope Oscilloscope...

  • Page 161: Aeq Adjustment (Rp-228 Board)

    5. AEQ Adjustment (RP-228 Board) 10) Select page: C, address: 40, set data: D , and press the PAUSE button of the adjusting remote commander. Mode Recording/playback 11) Select page: C, address: 42, set data: D , and press the PAUSE Signal Arbitrary button of the adjusting remote commander.

  • Page 162: Pll Capture Range Adjustment (Rp-228 Board)

    6. PLL Capture Range Adjustment (RP-228 Board) 7. IC774 41.85 MHz VCO Check (RP-228 Board) Mode Recording/Playback Mode Signal Color bar Signal Arbitrary CH1: Pin qk of CN775 (C1ERP) Measurement Point Page: 3, address: 39 on displayed data of Measurement Point CH2: Pin 6 of CN775 (JSWP) adjusting remote commander Measuring Instrument...

  • Page 163: Board Adjustments

    3-5-2. JC-19 Board Adjustments 4. CR Signal Clamp Reference Voltage Adjustment (JC-19 Board) 1. A/D Converter Reference Voltage Adjustment 1 Mode (JC-19 Board) Signal Color bar Mode Measurement Point Pin 8 of IC010 (CL052) Signal Arbitrary Measuring Instrument Digital voltmeter Measurement Point Pin 5 of IC013 (CL061) Adjusting Element...

  • Page 164: Playback Y Signal Level Adjustment (Jc-19 Board)

    6. Playback Y Signal Level Adjustment (JC-19 Board) 7. Playback CR Signal Level Adjustment (JC-19 Board) Mode Recording Mode Recording Signal DV input (Note 1) Signal DV input (Note 1) Pin 8 of CN104 or pin wd of CN102 on Measurement Point VA-102 board Pin 0 of CN104 or pin wa of CN102 on...

  • Page 165: Playback Cb Signal Level Adjustment (Jc-19 Board)

    8. Playback CB Signal Level Adjustment 9. IC422 27MHz XTAL fo Adjustment (JC-19 Board) (JC-19 Board) Mode Playback Mode Recording Signal Arbitrary tape Signal DV input (Note 1) Measurement Point Pin wk of IC442 (CL479) Pin qs of CN104 or pin ql of CN102 on Measuring Instrument Frequency counter Measurement Point...

  • Page 166: Afc Picture Frame Adjustment (Jc-19 Board)

    11. AFC Picture Frame Adjustment (JC-19 Board) Mode Recording Signal Color bar (Video input) (Note 1) CH1: Pin wa of IC017 (CL051) Measurement Point CH2: Pin wk of IC205 (CL222) Measuring Instrument Oscilloscope Adjusting Element RV201 Specified Value T = 110 ± 10 nsec Note 1: Set “VIDEO”...

  • Page 167: Board Adjustments

    3-5-3. VA-102 Board Adjustments 2. Analog E-E VIDEO Signal Output Level Adjustment (VA-102 Board) 1. AGC Adjustment (VA-102 Board) Mode Mode Signal Color bar (S VIDEO input) (Note 1) Signal Color bar (VIDEO input) (Note 1) Measurement Point Pin 9 of IC401 (CL434) Measurement Point Pin qf of IC205 (CL220) Measuring Instrument...

  • Page 168: Analog E-E Y Signal Output Level Check (Va-102 Board)

    3. Analog E-E Y Signal Output Level Check 4. Analog E-E Chroma Signal Output Level Check (VA-102 Board) (VA-102 Board) Mode Mode Signal Color bar (S VIDEO input) (Note 1) Signal Color bar (S VIDEO input) (Note 1) Measurement Point Pin qd of CN401 (CL436) Measurement Point Pin qa of IC401 (CL435)

  • Page 169: Decoder Vxo Freerunning Frequency Adjustment (Va-102 Board)

    5. Decoder VXO Freerunning Frequency Adjustment Video Input Y/C Separation Adjustment (VA-102 Board) (VA-102 Board) (1) Y Signal Output Level Adjustment Mode Mode Color bar (S VIDEO input) (Note 2) Signal (Chroma signal OFF) Signal Color bar (VIDEO input) (Note 1) Measurement Point TP201 (CL210) Measurement Point...

  • Page 170: Decoder Hue Adjustment (Va-102 Board)

    7. Decoder HUE Adjustment (VA-102 Board) (2) Chroma Signal Output Level Adjustment Mode Mode Signal Color bar (VIDEO input) (Note 1) Signal Color bar (S VIDEO input) (Note 1) Measurement Point Emitter of Q202 (CL203) Measurement Point Pin 8 of IC102 (CL144) Measuring Instrument Oscilloscope Measuring Instrument...

  • Page 171: Rec Y Level Adjustment (Va-102 Board)

    8. REC Y Level Adjustment (VA-102 Board) 9. REC CR Level Adjustment (VA-102 Board) Mode Mode Signal Color bar (VIDEO input) (Note 1) Signal Color bar (VIDEO input) (Note 1) Measurement Point Pin qs of IC102 (CL142) Measurement Point Pin 0 of IC102 (CL143) Measuring Instrument Oscilloscope Measuring Instrument...

  • Page 172: Rec Cb Level Adjustment (Va-102 Board)

    10. REC CB Level Adjustment (VA-102 Board) 12. Playback Y Level Check (VA-102 Board) Mode Mode Recording Signal Color bar (VIDEO input) (Note 1) Signal DV input (Note 1) Measurement Point Pin 8 of IC102 (CL144) Measurement Point Pin qd of CN401 (CL436) Measuring Instrument Oscilloscope Measuring Instrument...

  • Page 173: Playback Chroma Level Adjustment (Va-102 Board)

    13. Playback Chroma Level Adjustment 14. Playback Burst Level Adjustment (VA-102 Board) (VA-102 Board) (PAL model only) Mode Recording Mode Recording Signal DV input (Note 1) Signal DV input (Note 1) Measurement Point Pin qa of CN401 (CL435) Measurement Point Pin qa of CN401 (CL435) Measuring Instrument Oscilloscope...

  • Page 174: General Adjustment

    3-5-4. General Adjustments 2. Encoder R-Y Input Level Adjustment (JC-19 Board) Mode 1. Y Output Level Adjustment (JC-19 Board) Signal Color bar (DV input) (Note 1) Mode Measurement Point Video output terminal Signal Color bar (DV input) (Note 1) Measuring Instrument Vectorscope Measurement Point Video output terminal...

  • Page 175: Encoder B-Y Input Level Adjustment (Jc-19 Board)

    3. Encoder B-Y Input Level Adjustment (JC-19 Board) 4. Decoder HUE Input Adjustment (JC-19 Board) Mode Mode Signal Color bar (DV input) (Note 1) Signal Color bar (S VIDEO input) (Note 1) Measurement Point Video output terminal Measurement Point Video output terminal Measuring Instrument Vectorscope Measuring Instrument...

  • Page 176: Battery Down Adjustment And Confirmation

    5. Battery Down Adjustment and Confirmation Mode Stop Signal Displayed data on page 5, address 2A Test point (LCD display of the adjusting remote com- mander) Measuring Instrument Adjusting remote commander Adjustment page Adjustment address 1D, 1E, 1F Note 1: Make sure that the BEEP on the Menu screen is set to “ON”.

  • Page 177: Bist Check

    3-5-5. BIST Check 18) If IC401 (U1) t IC200 (S1) playback system is normal, the following data are displayed on page: 4, addresses: 14, 15. 1. Playback System Check (JC-19, RP-228 Boards) Page Address Data 1) Connect the adjusting remote commander to the LANC termi- nal, and turn the HOLD switch ON.

  • Page 178: Record System Check

    2. Record System Check IC411 (D1) Record System Check 10) Select page: 3, address: 01, set data: 0D, and press the PAUSE button. Note: Perform “Record System Check” successively (with BIST 11) Select page: 4, address: 1C, set data: FF, and press the PAUSE check tape in playback status) button.

  • Page 179: Audio System Adjustments

    3-6. AUDIO SYSTEM ADJUSTMENTS 3-7. ARRANGEMENT DIAGRAM FOR ADJUSTMENT PARTS 2. E-E Level Check Mode E-E (LINE 1 input) Unless spesified otherwise, set the switches as follows. RP-228 BOARD (SIDE A) AUDIO NODE (Menu display) ........Fs48k Audio: 1 kHz –6 dBv (–3.8 dBs) Signal Audio input terminal (Left and Right) INPUT SELECT ............
  • Page 180 JC-19 BOARD (SIDE A) VA-102 BOARD (SIDE A) CN104 CN103 CN411 CN412 IC013 RV012 RV010 IC202 CN401 RV011 RV002 RV001 RV203 RV201 RV201 CT201 RV404 RV401 RV202 CT201 TP201 RV207 RV406 TP401 RV205 JC-19 BOARD (SIDE B) RV402 RV204 RV206 CT401 CN503 CL053...

  • Page 181: Repair Parts List

    Description Remark Ref. No. Part No. Description Remark X-3950-023-1 PANEL ASSY, FRONT (DSR-20MD) X-3948-056-1 HINGE (R) ASSY, DOOR X-3950-022-1 PANEL ASSY (P), FRONT (DSR-20MDP) 4-886-821-01 SCREW, M3 CASE X-3950-025-1 DOOR ASSY (DSR-20MD) 3-987-158-01 CASE, UPPER X-3950-024-1 DOOR ASSY (P) (DSR-20MDP)

  • Page 182: Chassis Assembly

    1-958-841-11 HARNESS (DP-73) * 54 A-7067-251-A VA-102 BOARD, COMPLETE (DSR-20MDP) 3-945-562-01 BRACKET, FAN 0 67 * 54 A-7067-250-A VA-102 BOARD, COMPLETE (DSR-20MD) 1-958-585-11 HARNESS (AC-227) 1-782-823-11 CABLE, FLAT (FVH-4) 1-958-059-11 HARNESS (VP-72) 1-782-825-11 CABLE, FLAT (FVF-8) * 69 A-7073-576-A HG-1 BOARD, COMPLETE...

  • Page 183: Md Block Assembly

    Remark Ref. No. Part No. Description Remark 1-776-148-11 CABLE, FLAT (FCM-11) 15P * 110 A-7067-130-A JC-19 BOARD, COMPLETE (DSR-20MD) 1-776-145-11 CABLE, FLAT (FCM-8) 16P * 111 3-987-133-01 SUPPORT, JC * 103 A-7067-127-A CM-56 BOARD, COMPLETE (DSR-20MDP) 3-056-130-01 SCREW (M3), STEP...
  • Page 184 6-1-4. FL CASETTE COMPARTMENT ASSEMBLY NOTE FOR INSTALLATION : Place for grease (SG-055G: 7-651-000-09) : Take note of the position and specified direction. supplied 3 supplied 1 supplied 703A supplied 5 703B supplied 4 not supplied Ref. Page No. Page 5-40 Page 5-40 Page 5-38 Page 5-41...

  • Page 185: Mechanism Chassis Assembly

    6-1-5. MECHANISM CHASSIS ASSEMBLY (1) (TOP SIDE VIEW (1)) NOTE FOR INSTALLATION : Phase adjustment : Place for grease (SG-055G: 7-651-000-09) M903 supplied 6 M901 PH-G PH-G PH-S PH-G PH-G not supplied 7 supplied 8 not supplied Ref. Page No. Page 5-14 Page 5-15 Page 5-16...

  • Page 186: Mechanism Chassis Assembly

    6-1-6. MECHANISM CHASSIS ASSEMBLY (2) (TOP SIDE VIEW (2)) NOTE FOR INSTALLATION : Phase adjustment : Take note of the position and specified direction. PH-X 807B PH-W 807A PH-V 812A 812B 804B PH-T 804A PH-U Ref. No. Part No. Description Ref.

  • Page 187: Mechanism Chassis Assembly

    6-1-7. MECHANISM CHASSIS ASSEMBLY (3) (TOP SIDE VIEW (3)) NOTE FOR INSTALLATION : Phase adjustment : Place for grease (SG-055G: 7-651-000-09) : Take note of the position and specified direction. 860A PH-Q PH-R 860B PH-N PH-P S902 S901 CN901 853B 853A Ref.

  • Page 188: (Bottom Side View (1))

    6-1-8. MECHANISM CHASSIS ASSEMBLY (4) (BOTTOM SIDE VIEW (1)) NOTE FOR INSTALLATION : Phase adjustment : Place for grease (SG-055G: 7-651-000-09) M902 PH-A S001 PH-F not supplied 9 PH-D PH-C PH-A PH-E PH-B PH-C PH-D, V PH-D, R PH-A, T, U not supplied Ref.

  • Page 189: (Bottom Side View (2))

    6-1-9. MECHANISM CHASSIS ASSEMBLY (5) (BOTTOM SIDE VIEW (2)) NOTE FOR INSTALLATION : Phase adjustment PH-L PH-M PH-K PH-K PH-J PH-J PH-H PH-J M904 PH-K (including MD-63/64/65 board) Ref. No. Part No. Description Ref. page No. Ref. No. Part No. Description Ref.

  • Page 190: Electrical Parts List

    METAL OXIDE: Metal oxide-film resistor. F: nonflammable Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-7067-131-A CM-56 BOARD, COMPLETE (DSR-20MD) C054 1-127-530-11 ELECT 22uF A-7067-127-A CM-56 BOARD, COMPLETE (DSR-20MDP) C055 1-163-017-00 CERAMIC CHIP 0.0047uF 5% ********************** C056 1-164-004-11 CERAMIC CHIP 0.1uF...
  • Page 191 8-729-208-96 TRANSISTOR 2SA1242-Y (TE16L) Q503 8-729-421-19 TRANSISTOR UN2213-TX 0 F001 1-532-777-21 FUSE, MICRO Q504 8-729-421-19 TRANSISTOR UN2213-TX (SECONDARY) (1.25A) (DSR-20MD) < RESISTOR > < FILTER > R001 1-216-057-00 METAL CHIP 2.2K 1/10W FL001 1-233-351-21 FILTER, BAND PASS R002 1-216-065-91 RES, CHIP 4.7K...
  • Page 192 CM-56 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R020 1-216-093-91 RES, CHIP 1/10W R109 1-216-081-00 METAL CHIP 1/10W R021 1-216-089-91 RES, CHIP 1/10W R110 1-216-073-00 METAL CHIP 1/10W R026 1-216-049-91 RES, CHIP 1/10W R111 1-216-049-91 RES, CHIP 1/10W R027 1-216-089-91 RES, CHIP...
  • Page 193 1/10W R256 1-216-075-00 METAL CHIP 1/10W R575 1-216-049-91 RES, CHIP 1/10W R257 1-216-079-00 METAL CHIP 1/10W R901 1-216-295-91 SHORT 0 (DSR-20MD) R259 1-216-295-91 SHORT R902 1-216-295-91 SHORT 0 (DSR-20MDP) R262 1-216-093-91 RES, CHIP 1/10W R268 1-216-097-91 RES, CHIP 100K 1/10W <...
  • Page 194 FR-136 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C115 1-164-357-11 CERAMIC CHIP 1000PF C116 1-126-934-11 ELECT 220uF R103 1-216-842-11 METAL CHIP 1/16W C117 1-164-357-11 CERAMIC CHIP 1000PF R105 1-216-811-11 METAL CHIP 1/16W C118 1-164-357-11 CERAMIC CHIP 1000PF R106 1-216-841-11 METAL CHIP...
  • Page 195 FR-136 HG-1 HP-100 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-7073-471-A HP-100 BOARD, COMPLETE S118 1-762-333-21 SWITCH, TACTILE (↑) ********************** S119 1-762-333-21 SWITCH, TACTILE (SET) (Ref.No. 5,000 Series) S120 1-762-333-21 SWITCH, TACTILE (MENU) S121 1-692-838-21 SWITCH, TACTILE (RUBBER) (POWER) <...
  • Page 196 C165 1-162-974-11 CERAMIC CHIP 0.01uF ************************************************************** C166 1-162-974-11 CERAMIC CHIP 0.01uF C167 1-162-974-11 CERAMIC CHIP 0.01uF A-7067-130-A JC-19 BOARD, COMPLETE (DSR-20MD) C168 1-162-974-11 CERAMIC CHIP 0.01uF A-7067-126-A JC-19 BOARD, COMPLETE (DSR-20MDP) C170 1-162-974-11 CERAMIC CHIP 0.01uF ********************* (Ref.No. 2,000 Series)
  • Page 197 JC-19 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C252 1-162-970-11 CERAMIC CHIP 0.01uF C521 1-162-970-11 CERAMIC CHIP 0.01uF C253 1-162-970-11 CERAMIC CHIP 0.01uF C522 1-164-360-11 CERAMIC CHIP 0.1uF C254 1-162-970-11 CERAMIC CHIP 0.01uF C523 1-104-851-11 TANTALUM CHIP 10uF C255 1-164-357-11 CERAMIC CHIP 1000PF...
  • Page 198 JC-19 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C863 1-165-176-11 CERAMIC CHIP 0.047uF D501 8-719-073-01 DIODE MA111-TX C864 1-115-467-11 CERAMIC CHIP 0.22uF D503 8-719-421-27 DIODE MA728-TX C865 1-110-569-11 TANTALUM CHIP 47uF 6.3V D504 8-719-073-01 DIODE MA111-TX D901 8-719-073-01 DIODE MA111-TX C901...
  • Page 199 JC-19 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark IC831 8-759-358-47 IC NJM2115V (TE2) Q030 8-729-202-38 TRANSISTOR 2SC3326N-TE85L-B IC832 8-759-358-47 IC NJM2115V (TE2) IC833 8-759-358-47 IC NJM2115V (TE2) Q031 8-729-202-38 TRANSISTOR 2SC3326N-TE85L-B Q032 8-729-026-52 TRANSISTOR 2SA1576A-T106-R IC835 8-759-358-47 IC NJM2115V (TE2) Q033...
  • Page 200 JC-19 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R040 1-414-760-21 FERRITE R147 1-216-821-11 METAL CHIP 1/16W R041 1-414-760-21 FERRITE R148 1-216-830-11 METAL CHIP 5.6K 1/16W R042 1-414-760-21 FERRITE R149 1-216-824-11 METAL CHIP 1.8K 1/16W R043 1-216-864-11 METAL CHIP 1/16W R150...
  • Page 201 R465 1-216-864-11 METAL CHIP 1/16W R318 1-216-295-91 SHORT R319 1-218-864-11 METAL CHIP 5.1K 0.5% 1/16W R466 1-216-864-11 METAL CHIP 1/16W (DSR-20MD) R467 1-216-864-11 METAL CHIP 1/16W R319 1-218-865-11 METAL CHIP 5.6K 0.5% 1/16W R468 1-216-864-11 METAL CHIP 1/16W (DSR-20MDP) R469...
  • Page 202 JC-19 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R524 1-216-841-11 METAL CHIP 1/16W R701 1-216-833-91 RES, CHIP 1/16W R526 1-216-841-11 METAL CHIP 1/16W R702 1-216-821-11 METAL CHIP 1/16W R529 1-216-827-11 METAL CHIP 3.3K 1/16W R703 1-216-857-11 METAL CHIP 1/16W R530...
  • Page 203 R899 1-216-864-11 METAL CHIP 1/16W R992 1-216-864-11 METAL CHIP 1/16W R903 1-216-864-11 METAL CHIP 1/16W RR001 1-216-864-11 METAL CHIP 1/16W (DSR-20MD) R904 1-216-838-11 METAL CHIP 1/16W R905 1-216-821-11 METAL CHIP 1/16W RR002 1-216-864-11 METAL CHIP 1/16W R906 1-218-883-11 METAL CHIP 0.5%...
  • Page 204 1-238-858-11 RES, ADJ, CERMET 47K RV102 1-238-862-11 RES, ADJ, CERMET 1M JR201 1-216-296-91 SHORT < SWITCH > 1-468-441-11 POWER BLOCK (U-1) (DSR-20MD) S101 1-572-719-11 SWITCH, PUSH (1 KEY) 1-468-442-11 POWER BLOCK (U-1) (DSR-20MDP) ***************** (Ref No. 10,000 Series) MD-64 BOARD (Ref No. 7,000 Series) <...
  • Page 205 150uF 400V (DSR-20MDP) < TRANSISTOR > 9-880-365-01 FILM 0.01uF 630V 9-880-366-01 CERAMIC 680PF (DSR-20MD) 8-729-037-96 TRANSISTOR 2SK2366 (DSR-20MD) 9-880-424-01 CERAMIC 330PF (DSR-20MDP) 9-880-423-01 TRANSISTOR 2SK2483 (DSR-20MDP) 9-880-366-01 CERAMIC 680PF (DSR-20MD) 8-729-281-53 TRANSISTOR 2SC1815-GR 9-880-424-01 CERAMIC 330PF (DSR-20MDP) < RESISTOR >...
  • Page 206 8-749-924-80 PHOTO COUPLER PS2561L1-1-V 9-880-406-01 ELECT 680uF 0 Z3 8-749-924-80 PHOTO COUPLER PS2561L1-1-V 9-880-407-01 CERAMIC 0.0022uF 1-115-730-11 ELECT 180uF 1-468-441-11 POWER BLOCK (U-2) (DSR-20MD) 9-880-403-01 FILM 0.1uF 1-468-442-11 POWER BLOCK (U-2) (DSR-20MDP) 9-880-399-01 FILM 0.047uF 9-880-407-01 CERAMIC 0.0022uF ***************** (Ref No. 20,000 Series) 1-115-566-11 CERAMIC 4.7uF...
  • Page 207 POWER BLOCK (U-2) RE-32 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < DIODE > 8-759-293-98 IC LM2576T-ADJLB03 9-880-397-01 IC uPC29L03J 8-719-500-70 DIODE D5S4M 8-719-109-89 DIODE RD5.6ESB2 8-759-069-28 IC PQ05RF11 8-719-500-70 DIODE D5S4M 9-880-398-01 IC TD62305AP 8-719-043-76 DIODE AK04V0 8-759-490-61 IC LM2575T-ADJLB03...
  • Page 208 0.1uF S101 1-570-974-11 SWITCH, SLIDE (SYNC) ************************************************************** C824 1-162-970-11 CERAMIC CHIP 0.01uF C825 1-164-315-11 CERAMIC CHIP 470PF A-7067-132-A RP-228 BOARD, COMPLETE (DSR-20MD) C826 1-162-974-11 CERAMIC CHIP 0.01uF A-7067-128-A RP-228 BOARD, COMPLETE (DSR-20MDP) C827 1-162-974-11 CERAMIC CHIP 0.01uF *********************** C828 1-162-974-11 CERAMIC CHIP 0.01uF...
  • Page 209 1/16W CN103 1-750-345-11 CONNECTOR, FFC/EPC (ZIF) 30P CN771 1-770-305-11 CONNECTOR, FFC/FPC 10P R123 1-216-864-11 METAL CHIP 1/16W CN775 1-750-303-41 CONNECTOR, BOARD TO BOARD 20P (DSR-20MD) R124 1-216-864-11 METAL CHIP 1/16W < DIODE > (DSR-20MDP) R137 1-216-807-11 METAL CHIP 1/16W D771...
  • Page 210 1/16W L001 1-412-029-11 INDUCTOR CHIP 10uH ************************************************************** R806 1-216-821-11 METAL CHIP 1/16W R808 1-216-821-11 METAL CHIP 1/16W A-7067-250-A VA-102 BOARD, COMPLETE (DSR-20MD) R810 1-216-837-11 METAL CHIP 1/16W A-7067-251-A VA-102 BOARD, COMPLETE (DSR-20MDP) R812 1-216-837-11 METAL CHIP 1/16W ********************** R814 1-216-853-11 METAL CHIP...
  • Page 211 1-164-360-11 CERAMIC CHIP 0.1uF C313 1-126-206-11 ELECT CHIP 100uF 6.3V C251 1-162-911-11 CERAMIC CHIP 0.5PF C314 1-126-206-11 ELECT CHIP 100uF 6.3V (DSR-20MD) C401 1-126-205-11 ELECT CHIP 47uF 6.3V C251 1-162-910-11 CERAMIC CHIP 0.25PF 50V C402 1-162-970-11 CERAMIC CHIP 0.01uF (DSR-20MDP) C403...
  • Page 212 1-162-970-11 CERAMIC CHIP 0.01uF C447 1-164-360-11 CERAMIC CHIP 0.1uF C612 1-162-920-11 CERAMIC CHIP 27PF C448 1-124-778-00 ELECT CHIP 22uF 6.3V (DSR-20MD) C449 1-162-970-11 CERAMIC CHIP 0.01uF C612 1-162-921-11 CERAMIC CHIP 33PF C450 1-162-970-11 CERAMIC CHIP 0.01uF (DSR-20MDP) C613 1-162-915-11 CERAMIC CHIP 10PF 0.5PF...
  • Page 213 VA-102 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C716 1-164-360-11 CERAMIC CHIP 0.1uF C855 1-162-964-11 CERAMIC CHIP 0.001uF C717 1-164-389-11 CERAMIC CHIP 300PF C856 1-162-970-11 CERAMIC CHIP 0.01uF C719 1-164-360-11 CERAMIC CHIP 0.1uF C858 1-164-360-11 CERAMIC CHIP 0.1uF C720 1-164-360-11 CERAMIC CHIP...
  • Page 214 < FILTER > IC851 8-759-356-27 IC NJM2129M-TE2 FL201 1-236-925-11 FILTER, LOW PASS IC852 8-759-545-30 IC S579178PJ FL202 1-236-926-11 FILTER, BAND PASS (DSR-20MD) IC853 8-759-523-02 IC TC74HC4053AFT (EL) FL202 1-239-153-11 FILTER, BAND PASS (DSR-20MDP) IC854 8-759-445-93 IC AK6440AM-E2 FL203 1-233-501-11 FILTER, LOW PASS...
  • Page 215 1-412-029-11 INDUCTOR CHIP 10uH Q405 8-729-905-35 TRANSISTOR 2SC4081T106R L601 1-412-029-11 INDUCTOR CHIP 10uH Q406 8-729-905-35 TRANSISTOR 2SC4081T106R L602 1-410-389-31 INDUCTOR CHIP 47uH (DSR-20MD) Q407 8-729-427-83 TRANSISTOR XP6501-TXE L602 1-410-388-31 INDUCTOR CHIP 39uH (DSR-20MDP) Q408 8-729-402-42 TRANSISTOR UN5213-TX L603 1-412-029-11 INDUCTOR CHIP 10uH...
  • Page 216 VA-102 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark Q703 8-729-905-35 TRANSISTOR 2SC4081T106R R124 1-216-809-11 METAL CHIP 1/16W Q704 8-729-905-35 TRANSISTOR 2SC4081T106R Q705 8-729-402-42 TRANSISTOR UN5213-TX R125 1-216-809-11 METAL CHIP 1/16W Q706 8-729-403-35 TRANSISTOR UN5113-TX R126 1-216-809-11 METAL CHIP 1/16W R127...
  • Page 217 R224 1-216-841-11 METAL CHIP 1/16W R225 1-216-817-11 METAL CHIP 1/16W R293 1-216-833-91 RES, CHIP 1/16W R226 1-216-809-11 METAL CHIP 1/16W (DSR-20MD) R294 1-216-821-11 METAL CHIP 1/16W R227 1-216-821-11 METAL CHIP 1/16W R295 1-216-853-11 METAL CHIP 470K 1/16W R228 1-216-809-11 METAL CHIP...
  • Page 218 1-216-829-11 METAL CHIP 4.7K 1/16W (DSR-20MDP) R467 1-216-841-11 METAL CHIP 1/16W R406 1-216-864-11 METAL CHIP 1/16W R468 1-216-841-11 METAL CHIP 1/16W (DSR-20MD) R469 1-216-839-11 METAL CHIP 1/16W R407 1-216-835-11 METAL CHIP 1/16W R470 1-216-819-11 METAL CHIP 1/16W R408 1-216-833-91 RES, CHIP 1/16W...
  • Page 219 1/16W R542 1-216-864-11 METAL CHIP 1/16W R707 1-216-833-91 RES, CHIP 1/16W R543 1-216-864-11 METAL CHIP 1/16W R708 1-216-833-91 RES, CHIP 1/16W (DSR-20MD) R709 1-216-849-11 METAL CHIP 220K 1/16W R710 1-216-849-11 METAL CHIP 220K 1/16W R543 1-211-983-11 METAL CHIP 0.5% 1/16W...
  • Page 220 VA-102 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R766 1-218-882-11 METAL CHIP 0.5% 1/16W R865 1-216-821-11 METAL CHIP 1/16W R767 1-218-862-11 METAL CHIP 4.3K 0.5% 1/16W R866 1-216-864-11 METAL CHIP 1/16W R768 1-216-833-91 RES, CHIP 1/16W R867 1-216-817-11 METAL CHIP...
  • Page 221 1/16W X052 1-767-879-11 VIBRATOR, CERAMIC (1.2288MHz) R974 1-216-841-11 METAL CHIP 1/16W X201 1-579-738-21 VIBRATOR, CRYSTAL (14.318182MHz) R975 1-216-841-11 METAL CHIP 1/16W (DSR-20MD) R976 1-216-817-11 METAL CHIP 1/16W X201 1-579-780-21 VIBRATOR, CRYSTAL (17.734475MHz) (DSR-20MDP) R977 1-216-154-00 RES, CHIP 1/8W X401 1-577-165-11 VIBLATOR, CERAMIC (500kHz)

  • Page 222: Hardware List

    ************** 1-782-825-11 CABLE, FLAT (FVF-8) HARDWARE LIST 1-782-824-11 CABLE, FLAT (FVJ-7) ************** 0 58 1-468-441-11 POWER BLOCK (U-1/U-2) (DSR-20MD) 0 58 1-468-442-11 POWER BLOCK (U-1/U-2) (DSR-20MDP) 7-685-533-19 SCREW +BTP 2.6X6 TYPE2 N-S 7-682-552-09 SCREW +P 3X16 1-782-822-11 CABLE, FLAT (FVR-9)
  • Page 223 DSR-20MD/20MDP 2007E0500-1 Sony EMCS Co. 9-974-189-11 © 2007.5 – 294 – Published by Kohda TEC...
  • Page 224 • EVR Data Confirmation after Replacing Mount Board EVR Data Confirmation after Replacing Mount Board After replacing a mount board for service at DSR-20MD and DSR-20MDP, confirm the EVR data, and rewrite it if it is different from the EVR data stated below.
  • Page 225 Reverse 997418912.pdf Revision History S.M. Rev. Ver. Date History Contents issued 1999.10 Official Release — — 2007.05 Supplement-1 • EVR Data Confirmation after Replacing (S1 DI07-019) Mount Board DSR-20MD/20MDP...

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