Philips 21PV375/01/07/39/58 Service Manual
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Philips 21PV375/01/07/39/58 Service Manual

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TV-VCR Combination
Service
Service
Service
Service Manual
Contents
Chapter
Sec. 1:
Adjustment Procedure
Schematic Diagrams and CBA's
Exploded Views
Mechanical and Electrical Parts Lists
Sec. 2: Standard Maintenance
Mechanism Alignment Procedures
Disassembly / Assembly of Mechanism
Deck Exploded Views
For technical data reference is made to the Service Manual of
14PV374/01/07/39/58 & 14PV375/01/07/39/58 3103 785 22220.
The present Manual states only the differences.
Safety regulations require that the set be restored to its original
condition and that parts which are identical with those specified
be used.
Published by BK 2003 Video Service Department
21PV375
Survey of versions:
/01
PAL-BG, EURO
/07
PAL I, UK/IRELAND
/39
PAL/SECAM-BG+PAL/SECAM-L/L',FRANCE
/58
PAL-BG/DK+SECAM-BG/DK,EAST-EURO
Printed in Japan
c Copyright reserved
/01/07/39/58
Subject to modification
GB
3103 785 22240

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Summary of Contents for Philips 21PV375/01/07/39/58

  • Page 1 TV-VCR Combination Service 21PV375 /01/07/39/58 Service Service Service Manual Contents Survey of versions: PAL-BG, EURO Chapter PAL I, UK/IRELAND PAL/SECAM-BG+PAL/SECAM-L/L',FRANCE Sec. 1: Adjustment Procedure PAL-BG/DK+SECAM-BG/DK,EAST-EURO Schematic Diagrams and CBA's Exploded Views Mechanical and Electrical Parts Lists Sec. 2: Standard Maintenance Mechanism Alignment Procedures Disassembly / Assembly of Mechanism Deck Exploded Views...
  • Page 2 OPERATING CONTROLS AND FUNCTIONS [ 21PV375/ ( 01, 07, 39, 58 ) ] 1-4-3 T6500IB...
  • Page 3 1-4-4 T6500IB...

  • Page 4: Cabinet Disassembly Instructions

    CABINET DISASSEMBLY INSTRUCTIONS [ 21PV375/ ( 01, 07, 39, 58 ) ] 1. Disassembly Flowchart REMOVAL REMOVE/ This flowchart indicates the disassembly steps for the *UNHOOK/ cabinet parts, and the CBA in order to gain access to LOC. PART Fig. UNLOCK/RELEASE/ Note item(s) to be serviced.
  • Page 5 Disconnect the following: Anode Cap, CN501, 7. Removal of the Deck Unit. CN551, CN601, CRT CBA, and Power Knob. Then Remove seven screws (S-6), screw (S-7) and pull the Power Unit and Tray Chassis Unit out screw (S-8). Then, desolder connectors (CN201, backward.
  • Page 6 [4] Tray Chassis Unit CL604 [6] Top Shield [8] DECK UNIT [2] Power Unit and Tray Chassis Unit [9] TEXT CBA S-10 [10] MAIN CBA S-10 S-10 Text Holder S-10 Power Knob [5] H.V./Power Supply CBA [7] Bottom Plate [3] Power Unit Fig.
  • Page 7 S-11 Anode Cap CRT CBA S-11 S-11 [11] CRT S-11 Fig. 4 1-5-9 T6500DC...
  • Page 8 CRT CBA ANODE CN501B FOCUS SCREEN CN501 CN502 H.V./POWER SUPPLY CBA CN552 CL501A CN551 CN602 CN601 TO DEGAUSS COIL MAIN CBA CL403 TEXT CBA CL302A CL401 CL301A CL402 CN751 CN752 CN201 CN151 CL603A CAPSTAN TO SPEAKER MOTOR CYLINDER ASSEMBLY AC HEAD FE HEAD DECK UNIT ASSEMBLY...

  • Page 9: Electrical Adjustment Instructions

    ELECTRICAL ADJUSTMENT INSTRUCTIONS [ 21PV375/(01, 07, 58, 39) ] General Note: How to set up the option code "CBA" is abbreviation for "Circuit Board 1. Enter the Service mode. Assembly." 2. Press the [STATUS/EXIT] button on the remote control unit. The option code appears on the dis- play.
  • Page 10 1. DC114V (+B) Adjustment 2. H Adjustment Purpose: To obtain correct operation. Purpose: To get correct horizontal position and size of screen image. Symptom of Misadjustment: The picture is dark and unit does not operate correctly. Symptom of Misadjustment: Horizontal position and size of screen image may not be properly displayed.

  • Page 11: Picture Control

    3. C-Trap Adjustment 4. To enter the DSPC mode, press [1] button on the remote control unit. Recording starts automatically Purpose: To get minimum leakage of the color signal and “DSPC” appears on the display. carrier. TVCR Symptom of Misadjustment: If C-Trap Adjustment is incorrect, stripes will appear on the screen.
  • Page 12 5. SECAM Black Level Adjustment 6. V. Size Adjustment Purpose: To set Black Level of the SECAM signal R- Purpose: To obtain correct vertical height of screen Y/B-Y to Ref. level. image. Symptom of Misadjustment: If Black Level of the Symptom of Misadjustment: If V.
  • Page 13 8. H. Shift Adjustment 6. Turn the screen control up until dimmed horizontal line appears. Purpose: To obtain correct horizontal position and 7. Press the [P+/P-] buttons until the horizontal line size of screen image. becomes white. Symptom of Misadjustment: Horizontal position and 8.
  • Page 14 10. White Balance Adjustment 11. Sub-Brightness Adjustment Purpose: To get proper brightness. Purpose: To mix red, green and blue beams correctly Symptom of Misadjustment: If Sub-Brightness is for pure white. incorrect, proper brightness cannot be obtained by Symptom of Misadjustment: White becomes bluish adjusting the Brightness Control.
  • Page 15 12. Setting for CONTRAST, 13. Focus Adjustment COLOR, TINT and SHARP Purpose: Set the optimum Focus. Data Values Symptom of Misadjustment: If Focus Adjustment is incorrect, blurred images are shown on the display. General 1. Enter the Service mode. (See page 1-6-10) Test point Adj.
  • Page 16 14. Head Switching Position Adjustment Purpose: Determine the Head Switching Point during Playback. Symptom of Misadjustment: May cause Head Switching Noise or Vertical Jitter in the picture. Note: Unit reads Head Switching Position automati- cally and displays it on the screen (Upper Left Corner). Manual Adjustment 1.

  • Page 17: Adjustment Points And Test Points

    Adjustment Points and Test Points H.V./Power Supply CBA Top View Focus-control (Upper side) Screen-control (Lower side) R590 (H Adjustment) TP503 VR601 TP504 +B ADJ Main CBA Top View TP007 N-A-PB J361G4 TP002 (SECAM RF-SW Black Level TP001 Adjustment) TP008 C-PB J349F3 TP003 B-OUT...

  • Page 18: Block Diagrams

    BLOCK DIAGRAMS [ 21PV375/ ( 01, 07, 39, 58 ) ] Servo/System Control Block Diagram Comparison Chart of NOTE FOR WIRE CONNECTORS: TEST POINT INFORMATION Models & Marks 1. PREFIX SYMBOL "CN" MEANS CONNECTOR. :INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB. (CAN DISCONNECT AND RECONNECT.) :USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.

  • Page 19: Video Block Diagram

    Video Block Diagram Comparison Chart of NOTE FOR WIRE CONNECTORS: TEST POINT INFORMATION 1. PREFIX SYMBOL "CN" MEANS CONNECTOR. :INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB. Models & Marks (CAN DISCONNECT AND RECONNECT.) :USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.

  • Page 20: Audio Block Diagram

    Audio Block Diagram NOTE FOR WIRE CONNECTORS: TEST POINT INFORMATION 1. PREFIX SYMBOL "CN" MEANS CONNECTOR. :INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB. (CAN DISCONNECT AND RECONNECT.) :USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE. 2.
  • Page 21 Chroma Block Diagram NOTE FOR WIRE CONNECTORS: TEST POINT INFORMATION 1. PREFIX SYMBOL "CN" MEANS CONNECTOR. :INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB. (CAN DISCONNECT AND RECONNECT.) :USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE. 2.
  • Page 22 CRT/H.V. Block Diagram NOTE FOR WIRE CONNECTORS: TEST POINT INFORMATION 1. PREFIX SYMBOL "CN" MEANS CONNECTOR. :INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB. (CAN DISCONNECT AND RECONNECT.) :USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE. 2.

  • Page 23: Power Supply Block Diagram

    Power Supply Block Diagram CAUTION ! NOTE : Fixed voltage power supply circuit is used in this unit. CAUTION The voltage for parts in hot circuit is measured using If Main Fuse (F601) is blown, check to see that all components in the power supply FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, hot GND as a common terminal.
  • Page 24 [ 21PV375/ ( 01, 07, 39, 57 ) ] Main 1/5 Schematic Diagram Parts Location Guide Ref No. Position Ref No. Position Ref No. Position Ref No. Position CAPACITORS DIODES RESISTORS RESISTORS C203 D201 R224 R271 C205 D202 R226 R272 C207 D204 R227...
  • Page 25 Voltage indications for PLAY and REC modes on Main 1/5 Schematic Diagram the Schematic Diagrams are as shown below: Comparison Chart of Models and Marks PLAY MODE REC MODE (2.5) MODEL MARK “ “ = SMD THE SAME VOLTAGE FOR INDICATES THAT THE VOLTAGE 21PV375/07 BOTH PLAY &...
  • Page 26 Main 2/5 Schematic Diagram Voltage indications for PLAY and REC modes on the Schematic Diagrams are as shown below: PLAY MODE REC MODE “ “ = SMD (2.5) THE SAME VOLTAGE FOR INDICATES THAT THE VOLTAGE BOTH PLAY & REC MODES. IS NOT CONSISTENT HERE.
  • Page 27 Main 2/5 Schematic Diagram Parts Location Guide Ref No. Position Ref No. Position Ref No. Position Ref No. Position CAPACITORS CAPACITORS COILS RESISTORS C401 C444 L403 R854 C402 C445 L852 R856 C403 C452 L854 R857 TRANSISTORS C404 C851 R858 C405 C855 Q401 R859...
  • Page 28 Main 3/5 Schematic Diagram Parts Location Guide Ref No. Position Ref No. Position Ref No. Position CAPACITORS CAPACITORS RESISTORS C001 C332 R155 C002 C333 R156 C005 C334 R301 C006 C336 R302 C007 C338 R303 C008 C339 R304 C009 C340 R305 C012 C341 R306...
  • Page 29 Voltage indications for PLAY and REC modes on Main 3/5 Schematic Diagram the Schematic Diagrams are as shown below: PLAY MODE REC MODE “ “ = SMD (2.5) THE SAME VOLTAGE FOR INDICATES THAT THE VOLTAGE BOTH PLAY & REC MODES. IS NOT CONSISTENT HERE.
  • Page 30 Voltage indications for PLAY and REC modes on Main 4/5 Schematic Diagram the Schematic Diagrams are as shown below: VOLTAGE CHART (Power off mode) Ref. No. PLAY MODE REC MODE IC602 (2.5) “ “ = SMD Ref. No. THE SAME VOLTAGE FOR INDICATES THAT THE VOLTAGE BOTH PLAY &...
  • Page 31 Main 4/5 Schematic Diagram Parts Location Guide Ref No. Position Ref No. Position CAPACITORS DIODES C101 D693 C102 D694 C103 C104 IC101 C105 IC471 C106 IC681 COILS C471 C472 L681 C473 L682 TRANSISTORS C474 C475 Q681 C476 Q682 C478 Q683 C479 Q684 C480...
  • Page 32 Main 5/5 Schematic Diagram Parts Location Guide Ref No. Position Ref No. Position CAPACITORS RESISTORS CC-4 C701 R704 BB-2 BB-2 C703 R705 CC-4 AA-4 C705 R707 CC-4 CC-4 C706 R709 AA-4 BB-4 C707 R710 BB-4 AA-3 C708 R711 BB-4 CC-4 C709 R712 CC-4...
  • Page 33 Voltage indications for PLAY and REC modes on Main 5/5 Schematic Diagram the Schematic Diagrams are as shown below: PLAY MODE “ “ = SMD REC MODE (2.5) THE SAME VOLTAGE FOR INDICATES THAT THE VOLTAGE BOTH PLAY & REC MODES. IS NOT CONSISTENT HERE.
  • Page 34 H.V./Power Supply 1/2 Schematic Diagram Voltage indications for PLAY and REC modes on CAUTION ! the Schematic Diagrams are as shown below: CAUTION Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, PLAY MODE If Main Fuse (F601) is blown, check to see that all components in the power supply REC MODE...
  • Page 35 H.V./Power Supply 1/2 Schematic Diagram Parts Location Guide Ref No. Position Ref No. Position Ref No. Position CAPACITORS DIODES RESISTORS C602 D622 R625 C604 D623 R626 C605 D624 R627 C607 D625 R628 C608 D626 R629 C609 D627 R631 C610 D629 R632 C611 D630...
  • Page 36 H.V./Power Supply 2/2 Schematic Diagram Parts Location Guide Ref No. Position Ref No. Position CAPACITORS RESISTORS C551 R552 C552 R553 C553 R554 C554 R555 C555 R556 C556 R558 C558 R559 C559 R560 C560 R561 C561 R564 C562 R565 C565 R566 C566 R567 C567...
  • Page 37 H.V./Power Supply 2/2 Schematic Diagram Voltage indications for PLAY and REC modes on the Schematic Diagrams are as shown below: PLAY MODE REC MODE (2.5) THE SAME VOLTAGE FOR INDICATES THAT THE VOLTAGE BOTH PLAY & REC MODES. IS NOT CONSISTENT HERE. 1-8-62 1-8-63 T6500SCP2...

  • Page 38: Crt Schematic Diagram

    CRT Schematic Diagram Voltage indications for PLAY and REC modes on the Schematic Diagrams are as shown below: PLAY MODE REC MODE (2.5) THE SAME VOLTAGE FOR INDICATES THAT THE VOLTAGE BOTH PLAY & REC MODES. IS NOT CONSISTENT HERE. CRT SCHEMATIC DIAGRAM PARTS LOCATION GUIDE Ref No.

  • Page 39: Wiring Diagram

    WIRING DIAGRAM NOTE FOR WIRE CONNECTORS: 1. PREFIX SYMBOL "CN" MEANS CONNECTOR. (CAN DISCONNECT AND RECONNECT.) 2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER HOLES OF THE PCB. ANODE (WIRE IS SOLDERED DIRECTLY.) CN151 CL801 SP151 CRT CBA SPEAKER SP-GND BT6400F01021-B FOCUS WIRING DIAGRAM FOR SECTION 2 (DECK MECHANISM) SCREEN LOADING...

  • Page 40: Ic Pin Function Descriptions

    IC PIN FUNCTION DESCRIPTIONS [ 21PV375/ ( 01, 07, 39, 58 ) ] Signal Mark Function Name Comparison Chart of Models and Marks Not Used Model Mark Recording LED 21PV375/07 OUT REC-LED Control 21PV375/01 Signal 21PV375/58 Recording LED 21PV375/39 OUT REC-LED Control Signal IC 201 (TV/VCR Micro Computer)
  • Page 41 Signal Signal Mark Function Mark Function Name Name Switching Signal of Capstan Motor FWD/REV Control OUT SCART-H Scart Jack and OUT C-F/R Signal (FWD=”L”/ RCA Jack REV=”H”) OSD-GND OSD GND Supply Reel S-REEL Rotation Signal Not Used Take Up Reel Not Used T-REEL Rotation Signal...

  • Page 42: Lead Identifications

    LEAD IDENTIFICATIONS [ 21PV375/ ( 01, 07, 39, 58 ) ] 2SD1913(R) TT2140LS-YB11 KTC2026Y 2SK2647 MID-32A22 2SC5885000RF 2SC4544 2SC5360 S: Souce E: Emitter D: Drain C: Collector G: Gate B: Base B C E S D G B C E 2SC1627Y-TPE2 KTC3199(GR) KRA103M...
  • Page 43 PRODUCT SAFETY NOTE: Products marked with a h have special characteristics important to safety. Before replacing any of these components, read carefully the product safety notice in this service manual. Don’t degrade the safety of the product through improper servicing. NOTES: C…..±0.25% D…..±0.5%...
  • Page 44 ELECTRICAL PARTS LIST Pos. 12 NC Description C212 CHIP CERAMIC CAP.(MELF) F Z 0.01UF/16V C213 ELECTROLYTIC CAP. 47UF/6.3V M H7 C214 ELECTROLYTIC CAP. 330UF/6.3V M C214 ELECTROLYTIC CAP. 330UF/6.3V M C217 CHIP CERAMIC CAP. CH D 10PF/50V C218 CHIP CERAMIC CAP. CH D 10PF/50V C221 ELECTROLYTIC CAP.
  • Page 45 ELECTRICAL PARTS LIST Pos. 12 NC Description C328 MYLAR CAP. 0.22UF/50V J C330 CHIP CERAMIC CAP.(MELF) F Z 0.01UF/16V C331 ELECTROLYTIC CAP. 47UF/10V M C332 CHIP CERAMIC CAP. F Z 0.1UF/50V C333 CHIP CERAMIC CAP. F Z 0.1UF/50V C334 CHIP CERAMIC CAP. F Z 0.1UF/50V C336 ELECTROLYTIC CAP.
  • Page 46 ELECTRICAL PARTS LIST Pos. 12 NC Description C476 CHIP CERAMIC CAP. B K 0.01UF/50V C478 CHIP CERAMIC CAP. F Z 0.1UF/50V C479 CHIP CERAMIC CAP. B K 0.01UF/50V C480 CHIP CERAMIC CAP. B K 0.01UF/50V C481 ELECTROLYTIC CAP. 0.47UF/50V M H7 C483 CHIP CERAMIC CAP.
  • Page 47 ELECTRICAL PARTS LIST Pos. 12 NC Description C875 CHIP CERAMIC CAP. CH J 220PF/50V C876 CHIP CERAMIC CAP. B K 0.01UF/50V CF101 9965 000 13835 CERAMIC RESONATOR 4.433MHZ MISCELLANEOUS 1006 3143 027 10221 TUN IF V+U PLL PHONO BGDKI 1006 3143 027 10241 TUN IF V+U PLL PHONO BGDKIL 5000...
  • Page 48 ELECTRICAL PARTS LIST Pos. 12 NC Description IC’s IC101 9965 000 12198 IC:VPS/PDC SLICER LC74793JM-TRM IC151 9965 000 13853 AUDIO AMP LA4224 IC201 9965 000 18144 MICRO COMPUTER M37762MFA-BA0GP IC202 9965 000 13030 IC:MEMORY BR24C04F-W IC301 9965 000 18093 IC:CHROMA/IF 1 CHIP M61209BFP IC401 9965 000 12180 IC:Y/C/A LA71750AM-MTB...
  • Page 49 ELECTRICAL PARTS LIST Pos. 12 NC Description Q710 9965 000 05643 TRANSISTOR 2SC2785(F) Q711 4822 130 42959 TRANSISTOR KTA1266(GR) Q851 4822 130 10145 RES. BUILT-IN TRANSISTOR KRA103M Q852 4822 130 10097 TRANSISTOR 2SC3331(T) Q853 4822 130 10097 TRANSISTOR 2SC3331(T) Q854 4822 130 42959 TRANSISTOR KTA1266(GR) Q855...
  • Page 50 ELECTRICAL PARTS LIST Pos. 12 NC Description R230 CHIP RES.(1608) 1/10W J 1.5K OHM R231 CHIP RES.(1608) 1/10W J 330K OHM R232 CHIP RES.(1608) 1/10W J 1K OHM R233 CHIP RES.(1608) 1/10W J 1K OHM R234 CHIP RES.(1608) 1/10W J 560 OHM R235 CHIP RES.(1608) 1/10W J 1K OHM R236...
  • Page 51 ELECTRICAL PARTS LIST Pos. 12 NC Description R307 CHIP RES.(1608) 1/10W J 1.2K OHM R308 CHIP RES.(1608) 1/10W J 100 OHM R309 CHIP RES.(1608) 1/10W J 1.2K OHM R310 CHIP RES.(1608) 1/10W J 1K OHM R311 CARBON RES. 1/4W J 12 OHM R312 CHIP RES.(1608) 1/10W J 100 OHM R313...
  • Page 52 ELECTRICAL PARTS LIST Pos. 12 NC Description R691 METAL OXIDE FILM RES. 1W J 5.6 OHM R692 CHIP RES.(1608) 1/10W J 10K OHM R693 CHIP RES.(1608) 1/10W J 22K OHM R694 CHIP RES.(1608) 1/10W J 100 OHM R696 METAL OXIDE FILM RES. 1W J 2.2 OHM R697 CHIP RES.(1608) 1/10W J 10K OHM R698...
  • Page 53 ELECTRICAL PARTS LIST Pos. 12 NC Description R856 CARBON RES. 1/4W J 47K OHM R857 CARBON RES. 1/4W J 100 OHM R858 CARBON RES. 1/4W J 820 OHM R859 CHIP RES.(1608) 1/10W J 680 OHM R860 CHIP RES.(1608) 1/10W J 22K OHM R861 CHIP RES.(1608) 1/10W J 330K OHM R862...
  • Page 54 ELECTRICAL PARTS LIST Pos. 12 NC Description CN302 9965 000 13916 CONNECTOR, 8P TUC-P08X-B1 JUNCTION C CBA CN301 9965 000 05261 CONNECTOR 4P TUC-P04X-B1 SENSOR CBA Q201 9965 000 18096 PHOTO TRANSISTOR MID-32A22 Q202 9965 000 18096 PHOTO TRANSISTOR MID-32A22 POWER CBA Consists of the following H.V./POWER SUPPLY CBA...
  • Page 55 ELECTRICAL PARTS LIST Pos. 12 NC Description C627 ELECTROLYTIC CAP. 100UF/160V M C629 CERAMIC CAP.(AX) B K 0.01UF/50V C630 ELECTROLYTIC CAP. 1000UF/6.3V M C631 ELECTROLYTIC CAP. 100UF/10V M C632 ELECTROLYTIC CAP. 100UF/16V M C633 9965 000 14863 ELECTROLYTIC CAP. 47UF/25V M C634 ELECTROLYTIC CAP.
  • Page 56 ELECTRICAL PARTS LIST Pos. 12 NC Description D640 4822 130 11629 ZENER DIODE MTZJT-776.8B D641 9965 000 18091 ZENER DIODE MTZJT-7715B F601 9965 000 13890 FUSE 4A/250V 215004 FH601 4822 256 10461 FUSE HOLDER MSF-015 FH602 4822 256 10461 FUSE HOLDER MSF-015 IC’s IC551 9965 000 18120...
  • Page 57 ELECTRICAL PARTS LIST Pos. 12 NC Description R581 CARBON RES. 1/4W J 82K OHM R583 PCB JUMPER D0.6-P5.0 R584 CARBON RES. 1/4W J 1K OHM R585 CARBON RES. 1/4W J 150K OHM R586 CARBON RES. 1/4W J 68K OHM R587 CARBON RES.
  • Page 58 ELECTRICAL PARTS LIST Pos. 12 NC Description R655 CARBON RES. 1/4W J 5.6K OHM R656 CARBON RES. 1/4W J 47K OHM R657 CARBON RES. 1/4W J 220 OHM R658 METAL OXIDE FILM RES. 2W J 8.2K OHM R659 METAL OXIDE FILM RES. 2W J 8.2K OHM R660 PCB JUMPER D0.6-P5.0 R661...
  • Page 59 ELECTRICAL PARTS LIST Pos. 12 NC Description R519 CARBON RES. 1/6W J 15 OHM R520 CARBON RES. 1/4W J 470 OHM R521 CARBON RES. 1/4W J 120K OHM R522 CARBON RES. 1/4W J 15 OHM R523 CARBON RES. 1/4W J 470 OHM TEXT CBA CAPACITORS C901...
  • Page 60 ELECTRICAL PARTS LIST Pos. 12 NC Description R920 PCB JUMPER D0.6-P5.0 R921 CARBON RES. 1/4W J 3.3K OHM R922 CARBON RES. 1/4W J 3.3K OHM R923 CARBON RES. 1/4W J 3.3K OHM R924 CARBON RES. 1/4W J 1K OHM R925 CARBON RES.

  • Page 61: Exploded Views

    EXPLODED VIEWS [ 21PV375/ ( 01, 07, 39, 58 ) ] Cabinet See Electrical Parts List for parts with this mark. Some Ref. Numbers are not in sequence. CL604 Junction B CBA CRT CBA Text CBA Sensor TB33 TB10 TB15 TB21 Junction A CBA Junction C CBA...
  • Page 62 [ 21PV375/ ( 01, 07, 39, 58 ) ] Packing TAPE 1-15-6 T6500PEX...

  • Page 63: Mechanical Parts List

    : Products marked with a PRODUCT SAFETY NOTE have special characteristics important to safety. Before replacing any of these components, read carefully the product safety notice in this service manual. Don’t degrade the safety of the product through improper servicing. *)Note: Pos.1 consists of A1-1...
  • Page 64 MECHANICAL PARTS LIST Pos. Pos. 12 NC Description Expl. View 0450 BOX FOLDED 21PV37X 0453 STYROFOAM TOP 21" 0454 STYROFOAM BOTTOM 21" 0455 BAG (==>MAINS CORD) 0469 TOPFOIL 0471 STRETCHFOIL 500/15 0150 9965 000 18143 RC RT352/111 TEST TAPES 0001 3143 023 20011 TEST TAPE FL6K(S) 0002...
  • Page 65 STANDARD MAINTENANCE [ 21PV375/(01, 07, 58, 39) ] Service Schedule of Components H: Hours : Check I: Change Deck Periodic Service Schedule Ref.No. Part Name 1,000 H 2,000 H 3,000 H 4,000 H Cylinder Assembly Loading Motor Assembly Pulley Assembly B587 Tension Lever Assembly AC Head Assembly...
  • Page 66 Cleaning Cleaning of Audio Control Head Clean the head with a cotton swab. Cleaning of Video Head Procedure Clean the head with a head cleaning stick or chamois 1.Remove the top cabinet. cloth. 2.Dip the cotton swab in 90% isopropyl alcohol and Procedure clean the audio control head.
  • Page 67 SERVICE FIXTURE AND TOOLS [ 21PV375/(01, 07, 58, 39) ] J-1-1, J-1-2 Ref. No. Name Part No. Adjustment J-1-1 Alignment Tape FL6A Electrical Adjustments J-1-2 Alignment Tape FL6NS8 Azimuth and X Value Adjustment of Audio Control Head / Adjustment of Envelope Waveform Guide Roller Adj.Screwdriver Available Guide Roller...

  • Page 68: Top View

    MECHANICAL ALIGNMENT PROCEDURES [ 21PV375/(01, 07, 58, 39) ] Explanation of alignment for the tape to correctly run B. Method to place the Cassette Holder in the tape- starts on the next page. Refer to the information below loaded position without a cassette tape on this page if a tape gets stuck, for example, in the 1.
  • Page 69 1.Tape Interchangeability Alignment Note: To do these alignment procedures, make sure that the Tracking Control Circuit is set to the center position every time a tape is loaded or unloaded. (Refer to page 2-3-8, procedure 1-C, step 2.) Equipment required: Dual Trace Oscilloscope VHS Alignment Tape (FL6NS8) Guide Roller Adj.
  • Page 70 1-A. Preliminary/Final Checking and 3. Check to see that the tape runs without creasing at Alignment of Tape Path Take-up Guide Post [4] or without snaking between Guide Roller [3] and AC Head. (Fig. M3 and M5) Purpose: 4. If creasing or snaking is apparent, adjust the Tilt To make sure that the tape path is well stabilized.
  • Page 71 6. Press CH DOWN button on the unit until the CTL Dropping envelope level at the end of track. waveform has shifted from its original position (not the position achieved in step 5, but the position of CTL waveform in step 4) by approximately -2msec. Make sure that the envelope is simply attenuated (shrinks in height) once CTL waveform passes its original position and is further brought in the minus...
  • Page 72 DISASSEMBLY/ASSEMBLY PROCEDURES OF DECK MECHANISM [ 21PV375/ ( 01, 07, 39, 58 ) ] Before following the procedures described below, be sure to remove the deck assembly from the cabinet. (Refer to CABINET DISASSEMBLY INSTRUCTIONS.) All the following procedures, including those for adjustment and replacement of parts, should be done in Eject mode;...
  • Page 73 REMOVAL INSTALLATION STEP START- REMOVE/*UNHOOK/ /LOC. PART ADJUSTMENT Fig. No. UNLOCK/RELEASE/ CONDITION UNPLUG/DESOLDER Loading Arm (SP) (+)Refer to Alignment [34] [26] DM2,DM14 Assembly Sec.Pg.2-4-16 Loading Arm (TU) (+)Refer to Alignment [35] [34] DM2,DM14 Assembly Sec.Pg.2-4-16 M Brake (TU) Assembly [36] [16],[26] DM1,DM15 (HI)
  • Page 74 Top View [44] [45] [49] [46] [14] [13] [11] [15] [38] [10] [12] [37] [36] [43] [32] [41] [31] [40] [42] Fig. DM1 Bottom View [19] [35] [34] [25] [23] [24] [26] [27] [28] [20] [33] Fig. DM2 2-4-11 T6500DA...
  • Page 75 (S-1) (S-1) (L-1) (L-3) (L-2) (P-1) Fig. DM5 [49] Fig. DM3 [50] Pin D (L-12) Pin C Pull up Slide Pin A Pin B Slot A (S-2) Slots B Slot A First, while pushing the locking tab as shown in the right, slide and pull up the right side on [2] to release Pin A and Pin B from the slots A.
  • Page 76 (S-4) (S-5) [14] (S-6) [15] Desolder from bottom (S-3) Lead with White Stripe Belt View for A Fig. DM7 Fig. DM9 Adj. Screw [11] [17] (L-4) (L-5) (P-3) [16] [13] [18] [12] (P-4) [10] (P-2) (S-7) Pin of [12] Pin of [10] Fig.
  • Page 77 [26] (S-8) (C-3) (S-9) (L-8) [23] (L-7) [24] (C-5) (C-4) (C-2) [28] [25] [29] [30] [19] Cap Belt [27] Fig. DM11 (C-1) [20] [31] [21] Position of Mode Lever when installed Pin of [37] Pin of [33] Pin of [36] Bottom View [26] [27]...
  • Page 78 (P-5) [45] [33] [44] Refer to the Alignment [46] Section, Page 2-4-17. (L-11) [35] [32] (L-9) [34] Fig. DM16 Fig. DM14 [38] [36] [43] (P-6) turn [39] (P-9) (L-10) turn [47] [42] [48] Slide turn Fig. DM17 [37] (C-7) [41] (C-6) [40] Fig.
  • Page 79 ALIGNMENT PROCEDURES OF MECHANISM [ 21PV375/ ( 01, 07, 39, 58 ) ] Alignment 1 The following procedures describe how to align the individual gears and levers that make up the tape Loading Arm (SP) and (TU) Assembly loading/unloading mechanism. Since information Install Loading Arm (SP) and (TU) Assembly so that...
  • Page 80 DECK EXPLODED VIEWS [ 21PV375/ ( 01, 07, 39, 58 ) ] Deck Mechanism View 1 Mark Description Floil G-684G or Multemp MH-D (Blue grease) SLIDUS OIL #150 B494 L1467 L1191 B553 B411 B567 L1053 B410 L1051 Chassis Assembly Top View (Lubricating Point) B501 L1450 L1450...
  • Page 81 Deck Mechanism View 2 Mark Description Floil G-684G or Multemp MH-D (Blue grease) SLIDUS OIL #150 B587 B521 B487 SANKOUL FG84M (Yellow grease) B416 B591 B590 B522 B499 L1406 B148 B573 B508 B574 B592 B585 B518 B558 B564 B557 B414 B572 B565 L1151...
  • Page 82 Deck Mechanism View 3 Mark Description Floil G-684G or Multemp MH-D (Blue grease) SLIDUS OIL #150 L1321 B347 L1321 B355 B354 B483 B425 B482 B562 B300 B563 B313 B529 B360 B359 B361 B555 B561 B303 Some Ref. Numbers are not in sequence. B514 2-5-6 T6500DEX...
  • Page 83 DECK PARTS LIST DECK PARTS LIST Pos. 12 NC Description Pos. 12 NC Description CYLINDER ASS. MK12 PAL 2HD 2SP 9965 000 17189 B551 9965 000 17221 FF ARM(HI) MK12 LOADING MOTOR ASS. MK11 TVCR 9965 000 17217 B553 9965 000 12233 REV SPRING MK11 9965 000 16631 PULLEY ASS.(HI) MK12 B555 9965 000 16663 RACK ASS.

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