Aiwa HV-FX5200 Service Manual
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Aiwa HV-FX5200 Service Manual

Stereo video cassette recorder
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HV-FX5200
LE
SERVICE MANUAL
BASIC TAPE MECHANISM : D-33
STEREO VIDEO CASSETTE RECORDER
This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
(S/M Code No. 09-996-332-8T1).
S/M Code No. 09-996-332-8R1

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Summary of Contents for Aiwa HV-FX5200

  • Page 1 HV-FX5200 SERVICE MANUAL BASIC TAPE MECHANISM : D-33 STEREO VIDEO CASSETTE RECORDER This Service Manual is the "Revision Publishing" and replaces "Simple Manual" (S/M Code No. 09-996-332-8T1). S/M Code No. 09-996-332-8R1...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SPECIFICATIONS ............3 15. Support CST ............. 62 ACCESSORIES LIST ............3 16. Base Assembly P4 ............ 62 DISASSEMBLY INSTRUCTIONS ........4 17. Opener Lid ..............62 SERVICE POSITION ............5 18. Arm Assembly T/up ........... 62 VCR TEST TAPE INTERCHANGEABILITY TABLE ..

  • Page 3: Specifications

    SPECIFICATIONS Rewind time: Approx. 3 min. with E-180 tspe Video recording system Rotary 2 head helical scanning system Channel coverage VHF-low: C02 to C04, C13 to C20 Video head Double azimuth 4 heads (SECAM), S01 to S07 Tuner system Frequency synthesized tuner VHF-high: C05 to C12, S08 to S41 TV system B/G, L/L’...

  • Page 4: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS 1. Top Case Removal 4. Mechanism Removal (see Fig. 3) 1) Remove 4 screws holding the top case. 1) Disconnect the drum FF cable from the connector (PMD01) on the Main C.B. 2. Panel Front Removal (see Fig. 1) 2) Disconnect the ACE head FF cable from the connector 1) Release 7 tabs, and then remove the panel front.

  • Page 5: Service Position

    SERVICE POSITION To set the mechanism to the service position in active status: Insert a spacer as shown below: The service position can be set in the stable status without any defective contact. MAIN C.B MECHA SPACER 60mm MAIN C.B Use a spacer with a diameter of 10-15 mm, and of any shape (round, square, etc.).

  • Page 6: Vcr Test Tape Interchangeability Table

    VCR TEST TAPE INTERCHANGEABILITY TABLE There are two types of the new allgnment tape CH-1B (for NTSC) and CH-2 (for PAL). On each tape four signals (1)-(4) are recorded for the times and in the order shown below. (1) : 8min. (2) : 2min.

  • Page 7: Electrical Main Parts List

    ELECTRICAL MAIN PARTS LIST REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C119 87-010-408-040 CAP,E 47UF-50V C120 87-010-387-010 CAP,E 470UF-25V KME SI-SS4-310-00A IC,KA431AZ C121 87-010-387-080 CAP,E 470UF-25V SI-SK6-153-00A IC,STR-G6153T 5P C123 87-010-078-080 CAP,E 47M-6.3V S2-309-024-040 SENSOR LTV-817B PHOTO COU C124 87-010-552-040 CAP,E 22-16V...
  • Page 8 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C7V7 87-015-695-080 CAP,E 1.0-50V L902 87-003-152-080 INDUCTOR,100M 2.3-3.4-5 C7V8 87-015-695-080 CAP,E 1.0-50V L904 87-003-152-080 INDUCTOR,100M 2.3-3.4-5 C806 87-015-698-080 CAP,E 4.7-50V L905 S6-360-04C-000 COIL,BFS3550R2FD8 C807 87-015-698-080 CAP,E 4.7-50V L906 87-003-152-080 INDUCTOR,100M 2.3-3.4-5 C810...

  • Page 9: Transistor Illustration

    REF. NO PART NO. KANRI DESCRIPTION FRONT-1 C.B PMK02 S5-618-44J-000 CONN,10P SW5A1 S5-562-82C-000 SW,SKQNQED ALPS 5MM SW5A2 S5-562-82C-000 SW,SKQNQED ALPS 5MM SW5A3 S5-562-82C-000 SW,SKQNQED ALPS 5MM SW5A4 S5-562-82C-000 SW,SKQNQED ALPS 5MM SW5A5 S5-562-82C-000 SW,SKQNQED ALPS 5MM SW5A6 S5-562-82C-000 SW,SKQNQED ALPS 5MM FRONT-2 C.B LD5A1 SD-L53-110-0AA...

  • Page 10: Wire Harness Diagram

    WIRE HARNESS DIAGRAM PMD01 PMD01 D.CTL M.GND LOWER DRUM 5.3V PMC01 PCM01 P7M51 PM701 B NICAM C.B MOTOR GND MONO AUDIO I-LIMIT CAPSTAN CAP CTL MOTOR CAP REV "L" 5.3V P7M52 PM702 P3D02 P3D02 CTL(+) CTL(-) TU AUDIO (R) A/E(-) A MAIN C.B A/E(+) HEAD...
  • Page 11 BLOCK DIAGRAM-1 (POWER SECTION)
  • Page 12 BLOCK DIAGRAM-2 (VIDEO SECTION) PB MODE Q304 IC201 TA1238N MAIN C. COMB CONV LP 'A' PB DELAY Q303 C LPF LP 'B' PB IC301 LA71591M SP 'B' PB VIDEO/AUDIO PROCESSOR SP 'A' PB DE EMP :PB CHROMA SIGNAL PB FM :PB Y SIGNAL ENV.
  • Page 13 BLOCK DIAGRAM-3 (TUNER/IF, NICAM, A2 SECTION) A MAIN(TUNER/IF SECTION)C.B 5.3VA POWER SECTION 33VT TU701 ANTENA IN ANTENA OUT TU AUDIO(L) TU AUDIO(R) Hi_Fi SECTION VIDEO TU VIDEO AUDIO SECAM AGC OSD VIDEO CONTROL Q701 IIC CLOCK IIC DATA SYSCON/ SERVO VIDEO(VPS) SECTION TU SEC "H"...

  • Page 14: Power Section

    BLOCK DIAGRAM-4 (Hi-Fi/SCART SECTION) A MAIN(Hi-Fi SECTION)C.B 12VA POWER ZD802 SECTION ZD801 HF A PB JK902 HF REC SECTION AUDIO HF B PB OUT(R) A.H/SW IC801 SYSCON/ IIC DATA TDA9605H AUDIO SERVO IIC CLOCK OUT(L) SECTION VHS Hi-Fi AUDIO VHS Hi-Fi AUDIO A.ENV.

  • Page 15: Block Diagram

    BLOCK DIAGRAM-5 (Hi-Fi PB SECTION) FROM/TO FROM SYSCON/SERVO POWER SECTION SECTION JK902 A.ENV 12VA HI-FI S/W 25 A.OUT L A.OUT R LEVEL HI-FI A EU1 A.OUT L SWITCH AUDIO NOISE FROM EU1 A.OUT R (L,R) LIMITER NOISE REDUCTION SCART 1, CYL.HEADS SCART 2 EU2 A.OUT L...
  • Page 16 BLOCK DIAGRAM-6 (SYSTEM CONTROL SECTION) FROM/TO FROM/TO DECK Hi-Fi SECTION FROM/TO AUDIO/ VIDEO SECTION IC502 KA3082 L/D MOTOR C528 PML01 LD + 31 32 61 78 26 25 38 39 40 80 81 11 23 21 90 91 90 FROM/TO C529 (DRUM) POWER...

  • Page 17: Schematic Diagram 1. Power Section

    SCHEMATIC DIAGRAM-1(POWER SECTION) A MAIN(POWER SECTION)C.B D152 D154 D155 Q153 1N4003A 1N4003A 1N4003A KTC2804Y 5.3VA C159 10/16 Q152 Q151 C156 TUNER/IF KTC3203Y KTC3203Y 10/16 R152 SECTION 1.2K C152 33VT 4.7/50 C157 C153 R151 10/16 4.7/50 ZD153 1.2K T101 BD101 MTZ13A R101 D109 L104...

  • Page 18: Audio/Video Section

    SCHEMATIC DIAGRAM-2 (AUDIO/VIDEO SECTION) A MAIN(AUDIO/VIDEO SECTION)C.B POWER SECTION REC "H" R222 L309 100uH L201 R201 C402 C401 REC "H" C334 C331 0.022 47/6.3 220/6.3 220/6.3 H.AMP SW R430 C220 C218 C210 C209 3.9K 0.022 Q202 47/6.3 0.022 C.ROTARY KTC3199BL C354 A.MUTE "H"...
  • Page 19 WAVEFORM-1 (VIDEO SECTION) IC301 Pin IC301 Pin IC301 Pin IC301 Pin Video in PBmode PB/REC mode REC mode 1Vp-p 500mvp-p 4.2Vp-p 1.4Vp-p IC301 Pin IC301 Pin IC301 Pin IC301 Pin REC mode PB mode PB mode PB mode 2.2Vp-p 2.1 Vp-p 400mVp-p 600mVp-p IC301 Pin...
  • Page 20 WAVEFORM-2 (SERVO/OSD SECTION) IC501 Pin IC501Pin IC501 Pin IC501 Pin 1V/10mS 1V/10mS 1V/5mS 1V/2mS REC mode REC mode REC/PB mdes QUE/REV modes (CTL+) (CTL–) (V.H/SW) (D.V-SYNC) IC501 Pin IC501 Pin IC501 Pin IC501 Pin 1V/1mS 1V/10µS 1V/1mS 100mV/10µS REC/PB mode REC/PB modes REC/PB modes EE/PB modes...
  • Page 21 SCHEMATIC DIAGRAM-3 (SYSCON/SERVO SECTION) A MAIN(SYSCON/SERVO SECTION)C.B 12V(DRUM) IC502 KA3082 5.3VA PMK01 MOTOR DRIVE IC505 94 93 86 85 84 DIG5F1 KIA7042P or KA7542Z 9MT168GK or SVV09MM14 (DISPLAY) OTPB "H" C516 0.022 K.RTN 1 MOTOR DRIVE REC TIMER VCR M REM BIL SAP Hi-Fi ST To D SP LP...

  • Page 22: Hi-Fi/Scart Section

    SCHEMATIC DIAGRAM-4 (Hi-Fi/SCART SECTION) A MAIN(Hi-Fi SECTION)C.B 12VA POWER SECTION L801 100uH L802 ZD801 C832 C833 100uH MTZ5.6B 47/6.3 0.01 JK902 HF A PB R926 L926 SECTION ZD802 C828 C829 HF REC 100M MTZ13A 47/16 0.01 AUDIO HF B PB OUT(R) C924 1000P...

  • Page 23: Tuner/If Section

    WAVEFORM-3 SCHEMATIC DIAGRAM-5 (TUNER/IF SECTION) A MAIN(TUNER/IF SECTION)C.B TU701 Pin (IF Signal) L702 10 H 5.3VA C704 C705 47/6.3 0.01 POWER SECTION 33VT TU701 ANTENNA IN ANTENNA OUT TU AUDIO(L) TU AUDIO(R) Hi_Fi TU701 Pin MOD.AUDIO SECTION (Video Signal) VIDEO TU VIDEO AUDIO OSD VIDEO...
  • Page 24 WAVEFORM-4 SCHEMATIC DIAGRAM-6 (NICAM SECTION) IC751 Pin (IF Signal) B NICAM C.B D751 L752 C772 1N4003A 100uH 0.0039 R755 C760 C759 47/16 0.01 C765 C766 L753 L755 P7M51 C758 47/16 0.01 C756 100u R757 C776 6800uH 0.01 0.01 2.2K 10/16 MONO AUDIO C771 0.0039...

  • Page 25: Main C.b Section

    WIRING-1 (MAIN C.B SECTION) JK902 TU701 JK901-2 AUDIO OUT ENTREE AC200 ~ 240V ANTENNE 50Hz AV2 ENTREE(DECODEUR) (SORTIE) A MAIN C.B R(D) JK901-1 SORTIE L(G) ANTENNE AV1 ENTREE/SORTIE (TV) JK902 C546 PMD01 L907 JK901 C923 R212 R490 R491 L905 17 19 L924 Q202 TU701...

  • Page 26: Front 1 C.b Section

    WIRING-2 (FRONT-1 C.B) SCHEMATIC DIAGRAM-7 (FRONT-1 C.B SECTION) C FRONT-1 C.B C FRONT-1 C.B PKM02 SW5A1 SW5A1 SW5A6 REC/OTR PAUSE/STILL SW5A6 R5A3 R5A1 R5A2 R5A4 R5A5 2.2K 1.8K 1.5K 2.7K 3.9K SW5A2 SW5A4 K.RTN 0 SW5A4 SW5A2 SW5A1 SW5A2 SW5A3 SW5A6 /F FWD /REW...
  • Page 27 WIRING-4 (NICAM C.B) B NICAM C.B X751 L753 C769 C768 49 51 52 C770 IC751 P7M51 P7M52 To A MAIN C.B To A MAIN C.B PM701 PM702...

  • Page 28: Ic Description

    IC DESCRIPTION IC, HD3977RC17F Pin No. Pin Name Description End sensor to detect the tape’s terminal (Lead taps section). TAKE UP If “H” is detected signal in the REW, REV modes, the mechanism stops and ejects the SENSOR cassette automatically. VSS (A/D) –...
  • Page 29 Pin No. Pin Name Description KEY NAME A/D RANGE SP/EP 0.0V ~ 0.45V CH UP 0.46V ~ 0.96V CH DOWN 0.97V ~ 1.47V STOP/EJECT 1.48V ~ 1.97V REC/ITR 1.99V ~ 2.48V KEY RTN1 KEY NAME A/D RANGE PAUSE 0.0V ~ 0.45V KEY RTN 1 0.46V ~ 0.96V 0.97V ~ 1.47V...
  • Page 30 Pin No. Pin Name Description Vcc (SYS) – SYSCON Vcc. A.H.S/W 30 Not connect Pulses output for switching video head A and B. - Produces PG M.M pulses internally by using inputted DPG, DFG pulses to pin 38, V.H.S/W - Produces video head switching 30 Hz pulses by sychronizing at edge point of first PG.
  • Page 31 Pin No. Pin Name Description Vref (OSD) – GND. CV OUT The video signal is output to the RF modulator and line output jack. CHAR BIAS – GND. AFC LPF Horizontal sync is used to lock the OSD. (Reduce Jitter) AFC OSC Vss (OSD) –...
  • Page 32 Pin No. Pin Name Description 1. Port to ditect the mechanism’s position. 2. Deck and Mode SW Positions. MODE SW4 MODE MODE MODE MODE DECK POSITION NAME RETURN EJECT MODE SW3 LOADING START LOADING END TUNE MODE SW2 PLAY STOP FF, REW MODE SW1 PASS...
  • Page 33 Pin No. Pin Name Description 1. When a power failure is detected, this pin goes “L” and the following sequence of events occurs. 2. Power failure detector timing sequence. AC POWER ON AC POWER OFF Vcc for (Back-up) AVcc No (Back-up) 5.3VA Power failure signal POWER FAIL...

  • Page 34: Adjustment

    ADJUSTMENT Test Equipment • Oscilloscope • Test Tape • AC Millivolt Meter TTV-P1 Adjustment Location A MAIN C.B (TOP VIEW) H/SW TU701 P3D01 P3D02 IC502 T101 IC301 PMC01 IC501 VR501 PG ADJ. IC503 IC7VI IC5F1 PMK02...
  • Page 35 1. Servo Adjustment 1) PG Adjustment MODE MEASUREMENT POINT ADJUSTMENT POINT SPECIFICATION PLAY VIDEO OUT VR501 6.5 ± 0.5H (TTV-P1) H/SW (W317, W318) • Adjustment Procedure 1. Insert the PAL SP Test Tape (TTV-P1) and play. Note - Adjust the distance of X, pressing the Tracking(+) or Tracking(-) when the “ATR” is blink after the PAL SP Test Tape is inserted.

  • Page 36: Mechanical Exploded View 1/1

    MECHANICAL EXPLODED VIEW 1/1...

  • Page 37: Mechanical Parts List 1/1

    MECHANICAL MAIN PARTS LIST REF. NO PART NO. KANRI DESCRIPTION 001 S7-21R-F09-4D0 PANEL ASSY,FRONT ——— PANEL FRONT 003 S4-426-81A-000 SPR,DOOR 004 S5-80R-003-3D0 DOOR CST 005 S5-50R-021-0A0 COVER BOTTOM 006 S2-10R-002-3D0 FRAME MAIN ——— DECK ASSY D33 4HF 008 S1-10R-012-8K0 CASE TOP 009 S4-10R-CHD-01A POWER CORD 010 S7-21R-D02-3J0...

  • Page 38: Mechanism Exploded View 1/3, 2/3, 3/3

    MECHANISM EXPLODED VIEW 1/3...

  • Page 39: Mechanism Parts List 1/3, 2/3, 3/3

    MECHANISM MAIN PARTS LIST 1/3 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 026 S6-81R-000-7A0 MOTOR ASSY L/D 001 S7-23R-010-6D0 DRUM ASSY SUB D33-6CH 027 S4-70R-002-5A0 GEAR WHEEL 002 S6-80R-B00-04A MOTOR(MECH) 028 S4-08R-000-2A0 REEL T 003 S9-30R-010-8A0 HOLDER FPC(6CH) 029 S2-61R-001-1A0 ARM ASSY PINCH...
  • Page 40 MECHANISM EXPLODED VIEW 2/3...
  • Page 41 MECHANISM MAIN PARTS LIST 2/3 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION ——— SPRING L/D 032 S1-41R-000-2A0 CHASSIS ASSY ——— LEVER P2 051 S4-00R-000-5A0 BELT CAPSTAN ——— BRACKET JOG 052 S6-80R-000-2A0 MOTOR(MECH) ——— LEVER JOG 052 S6-80R-A00-03A MOTOR(MECH) ———...
  • Page 42 MECHANISM EXPLODED VIEW 3/3...
  • Page 43 MECHANISM MAIN PARTS LIST 3/3 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 032 S1-41R-000-2A0 CHASSIS ASSY ——— ARM F/L(R) 100 S3-01R-002-9A0 PLATE ASSY TOP 115 S9-70R-005-0A0 SPRING SWITCH 101 S8-10R-005-6A0 BRACKET SIDE(L) 116 S5-10R-002-0A0 LEVER SWITCH ———...

  • Page 44: Deck Mechanism Parts Locations

    DECK MECHANISM PARTS LOCATIONS • Top View Pracedure Fig- Part Fixing Type Starting Drum Assembly 3 Screws , Cap FPC A-1 Plate Assembly Top Two Hooks Bracket Side 'L' 5 Holder Assembly CST Chassis Hole 6 Bracket Assembly Door Guide CST 2 Hooks Plate Assembly 2 2,3,4...

  • Page 45: Deck Mechanism Disassembly

    DECK MECHANISM DISASSEMBLY (S2) Stator (S2) (S3) Drum Motor (S3) Rotor Drum Sub Assembly (Fig. A-1-1) Drum FPC (S1) (S1) Optional Parts Holder FPC Holder FPC Holder FPC (only for 2HD Models) (only for 4HD-Mono Models) (only for 4HD-Hi-Fi Models) Cap FPC (Fig.

  • Page 46: Plate Assembly Top

    DECK MECHANISM DISASSEMBLY Plate Assembly Top (Fig. A-2-1) Holder Assembly CST Lever Stopper (L) Lever Stopper (R) (Fig. A-2-2) Arm Assembly F/L Arm F/L (Fig. A-2-6) (S2) Lever Assembly S/W (Fig. A-2-7) (H5) Bracket Side (L) (S1) (Fig. A-2-4) Groove Gear Rack F/L Groove (Fig.
  • Page 47 DECK MECHANISM DISASSEMBLY 2. Plate Assembly Top (Fig. A-2-1) 2) Remove the Screw (S2) and disassemble the Bracket Assembly Door in the front. 1) Unhook the (H1) and separate the Left Side. 6. Arm Assembly F/L (Fig. A-2-6) 2) Unhook the (H2) and lift up the Plate Assembly Top. 1) Push the Arm Assembly F/L to the left and lift up it.

  • Page 48: Arm Assembly Cleaner

    DECK MECHANISM DISASSEMBLY Arm Assembly Cleaner (Fig. A-3-1) (S1) Base Assembly A/C Head (Fig. A-3-3) (Fig. A-3-2) (H1) Head F/E Fig. A-3 8. Arm Assembly Cleaner(Fig. A-3-1) 9. Head F/E (Fig. A-3-2) 1) Break away the (A) part shown above Fig. A-3-1 from the 1) Unhook the two Hooks (H1) on the back side of the Embossing of the Chassis in the clockwise direction and Chassis and lift up the Head F/E.

  • Page 49: Brake Assembly S

    DECK MECHANISM DISASSEMBLY Spring S Brake Brake Assembly S (Fig. A-4-1) Arm Assembly Tension Reel T Spring Tension (Fig. A-4-5) Band (Fig. A-4-3) Assembly Spring T Brake Tension Reel S Brake Assembly T (Fig. A-4-2) (Fig. A-4-4) Fig. A-4 11. Brake Assembly S (Fig. A-4-1) 13.

  • Page 50: Support Cst

    DECK MECHANISM DISASSEMBLY Opener Lid (Fig. A-5-3) Spring Arm T/Up Arm Assembly T/up (Fig. A-5-4) Assembly Pinch Base Assembly P4 (Fig. A-5-5) Support CST (Fig. A-5-1) (Fig. A-5-2) Fig. A-5 15. Support CST (Fig. A-5-1) 2) Lift up the Arm Assembly T/up. 1) Break away the (A) part shown above Fig.

  • Page 51: Belt Capstan/Motor Capstan

    DECK MECHANISM DISASSEMBLY Belt Capstan (Fig. A-6-1) Motor Capstan Washer(W1) Clutch Assembly D33 (Fig. A-6-3) (Fig. A-6-2) Washer(W2) Optional Parts Gear Assembly H-Up/D or Gear Assembly Up/D Lever F/R (For Hi-Rewind Models) (For Normal Models) (Fig. A-6-4) Hook(H1) Spring Up/D Slide Washer (Fig.

  • Page 52: Bracket Assembly Jog

    DECK MECHANISM DISASSEMBLY Brake Assembly Capstan Hole (A)+(B) Brake Assembly Capstan (H2) Gear Cam Spring Capstan (Fig. A-7-4) Hole (A) Guide Rack F/L (H1) (S1) Bracket Assembly Jog (S2) (Fig. A-7-2) (Fig. A-7-1) Gear Rack F/L Gear Cam Hole (B) (Fig.

  • Page 53: Gear Drive/Gear Cam/Gear Connector

    DECK MECHANISM DISASSEMBLY Washer (W1) Gear Drive (Fig. A-8-1) Gear Cam Hole(B) (Fig. A-8-2) Gear Connector Hole(A) (Fig. A-8-3) Gear Connector Hole(A')+(A) Hole(B') Hole(A') Chassis Bracket Assembly L/D Motor Hole(B')+(B) (Fig. A-8-4) Gear Cam Fig. A-8 (Fig. B-3) 27. Gear Drive (Fig. A-8-1)/ Gear Cam (Fig.

  • Page 54: Gear Sector

    DECK MECHANISM DISASSEMBLY Washer (W1) Gear Sector (Fig. A-9-1) ( S1) Base Tension Plate Slider (Fig. A-9-2) (Fig. A-9-3) Lever Tension (Fig. A-9-4) Fig. A-9 29. Gear Sector (Fig. A-9-1) NOTE 1) Remove the Washer(W1) and lift up the Gear Sector. 30.

  • Page 55: Arm Assembly Idler Jog Or Arm Assembly Idler

    DECK MECHANISM DISASSEMBLY (Fig. A-10-1) Gear Assembly P3 Gear Assembly P3 Gear Assembly P2 (Fig. A-10-2) Gear Assembly P2 Chassis Optional Parts Base Assembly P2 Arm Assembly Idler or Arm Assembly Idler Jog (Fig. A-10-4) (For 2HD Models) (For 4HD Models) (Fig.

  • Page 56: Deck Mechanism Adjustment Tools And Fixtures For Service

    DECK MECHANISM ADJUSTMENT • Tools and Fixtures for Service 3. Torque gauge 1. Cassette Torque meter 2. Alignment tape 600g.Cm ATG SRK-VHT-303(Not SVC part) (See figure below) 4. Torque gauge adaptor 5. Post height adjusting driver 6. + Type driver (ø 5) Parts No: SV-TGO-030-000 (SMALL) SV-TGO-020-000 (LARGE)

  • Page 57: Mechanism Alignment Position Check

    DECK MECHANISM ADJUSTMENT 1.Mechanism Alignment Position Check Purpose:To determine if the Mechanism is in the correct position, when a Tape is ejected. Test Conditions (Mechanism Test Equipment/ Fixture Check Point Condition) • Mechanism and Mode Switch Position • Blank tape •...

  • Page 58: Preparation For Adjustment

    DECK MECHANISM ADJUSTMENT 2. Preparation for Adjustment (To set the Cassette without Tape. Cover the Holes of the End Sensors at the both sides of the Deck Mechanism to the Loading state Bracket Side(L) and Bracket Assembly Door to prevent a without inserting a Cassette Tape).

  • Page 59: Guide Roller Height Adjustment

    DECK MECHANISM ADJUSTMENT 4.Guide Roller Height Adjustment Purpose: To regulate the Height of the Tape so that the Bottom of the Tape runs along the Tape Guide Line on the Lower Drum. 4-1. Preliminary Adjustment Test Equipment/ Fixture Test Conditions (Mechanism Condition) Adjustment Point •...

  • Page 60: Audio/Control (A/C) Head Adjustment

    DECK MECHANISM ADJUSTMENT 5. Audio/Control (A/C) Head Adjustment Purpose: To insure that the Tape passes accurately over the Audio and Control Tracks in exact Alignment in both the Record and Playback Modes. 5-1. Preliminary Adjustment (Height and Tilt Adjustment) Perform the Preliminary Adjustment, when there is no Audio Output Signal with the Alignment Tape. Test Equipment/ Fixture Test Conditions (Mechanism Condition) Adjustment Point...

  • Page 61: Precise Adjustment (Azimuth Adjustment)

    DECK MECHANISM ADJUSTMENT 5-2. Confirm that the Tape passes smoothly slowly turn the Tilt Adjustment Screw(C) in the Counterclockwise direction. between the Take-up Guide and Pinch Roller(using a Mirror or the naked eye). Afetr completing Step 5-1.(Preliminary Adjustment), NOTE: check that the Tape passes around the Take-up Guide and Pinch Roller without Folding or Curling at the Top or Check the RF Envelope after adjusting the A/C Head, if Bottom.

  • Page 62: Adjustment After Replacing Drum Assembly (Video Heads)

    DECK MECHANISM ADJUSTMENT 7. Adjustment after Replacing Drum Assembly (Video Heads) Purpose: To correct for shift in the Roller Guide and X value after replacing the Drum. Test Conditions Test Equipment/ Fixture Connection Point Adjustment Points (Mechanism Condition) • Guide Roller Precise •...

  • Page 63: Maintenance/Inspection Procedure

    MAINTENANCE/INSPECTION PROCEDURE 1 Check before starting repairs The following faults can be remedied by cleaning and oiling. Check the needed lubrication and the conditions of cleanli- ness in the unit. Check with the customer to find out how often the unit is used, and then determine that the unit is ready for inspection and maintenance.

  • Page 64: Required Maintenance

    MAINTENANCE/INSPECTION PROCEDURE 4. Supplies Required for Inspection and 2. Required Maintenance Maintence The recording density of a VCR(VCP) is much higher than that of an audio tape recorder. VCR(VCP) components must (1) Grease : Kanto G-311G (Blue) or equivalent be very precise, at tolerances of 1/1000mm, to ensure com- (2) Isopropyl Alcohol or equivalent patiblity with other VCRs.

  • Page 65: Greasing

    MAINTENANCE/INSPECTION PROCEDURE (2) Periodic greasing 5-2) Greasing Grease specified locations every 5,000 hours. (1) Greasing guidelines Apply grease, with a cleaning patch. Do not use excess 1) Loading Path Inside & Top side 5) Lever Tension Groove grease. It may come into contact with the tape transport 2) Shaft 6) Clutch Assembly D33 Shaft or drive system.

  • Page 66: Mechanism Troubleshooting Guide

    MECHANISM TROUBLESHOOTING GUIDE 1.Deck Mechanism Auto REW doesn't work. Is the output of END sensor of supply side "H"? “H”: more than 3.5V “L”: less than 0.7V~1V Is the Vcc. voltage of End Check the syscon power. sensor 5V? Replace End sensor. Is the voltage across IR LED Replace LED.
  • Page 67 MECHANISM TROUBLESHOOTING GUIDE AUTO STOP. (PLAY/CUE/REV) Check aligment positions (page 69) Check spring Pinch. In Play/Cue/Rev is the pinch roller in contact with the capstan Is the output of DFG, DPG OK? Replace Drum Motor. shaft. Are there T/up and supply reel Check Servo, Syscon.
  • Page 68 MECHANISM TROUBLESHOOTING GUIDE In PB mode Tape Presence not sensed. Is the Pinch Roller attached Check Alignment positions to the Capstan Motor Shaft? (page 69) Does the T/Up Is the Belt ok? Replace the Belt. Reel turn? Check the clutch and the Idler Does the Capstan Motor turn? Assembly.

  • Page 69: Front Loading Mechanism

    MECHANISM TROUBLESHOOTING GUIDE 2. Front Loading Mechanism Cassette cannot be inserted. Is the Lever Switch Spring Replace or add the Does the Lever Switch work? damaged or omitted? Lever Switch Spring. Does the F/L switch work Replace F/L Switch. normally? Is the Vcc of Main P.C.Board 5V? Check syscon circuit.
  • Page 70 MECHANISM TROUBLESHOOTING GUIDE Cassette will not load. Does the CST insert? Does the opener Lid work? Replace the Opener Lid. Does the Gear Rack F/L work? Replace the Rear Rack F/L. Does the Opener Door work? Does the Arm Assembly F/L work? Is the opener Door assembled correctly? Does the L/D Motor work? Replace the Arm Assembly F/L.
  • Page 71 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111 Printed in Singapore 920074...

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