Aiwa D33 Service Service Manual

VIDEO CASSETTE RECORDERHV-FX970HV-GX910S/M Code No. 09-996-332-6R1LELESERVICE MANUALDATABASIC TAPE MECHANISM : D-33REVISIONThis Service Manual is the

10BLOCK DIAGRAM-1 (POWER SECTION)5.3VA5VGBD101R101R102C103C113C112HOT GNDF101WH(BL)BK(BR)PW10169101187122143131512IC102IC1034T101TRANSFORMER4231RECTIF

1211BLOCK DIAGRAM-2 (AUDIO SECTION)BLOCK DIAGRAM-3 (VIDEO SECTION)•PB Mode•REC Mode•PB Mode•REC Mode41100659699LP/EPDATAFROMSYSCON/SERVOSECTIONCLKNORM

1413BLOCK DIAGRAM-4 (TUNER SECTION)VIDEOBUFFERSECAM AGCCONTROL5E1E5B6H5H4B4H3B3H2H1H2B3E4E1BQ701Q7S1:REC AUDIO SIGNAL:REC VIDEO SIGNAL:PB VIDEO SIGNAL

1615BLOCK DIAGRAM-5 (SCART SECTION)13 2414 15 16 17 18 19VCC20 22 232112 122424038363432302826242341393735333129272511109876GND532GND4VCC5VREGIC-BUSCO

1817BLOCK DIAGRAM-6 (SYSTEM CONTROL SECTION)IC505IC504IC503FROM/TO TU/IFTO POWERFROM/TO Y/C,PRE-AMP FROM/TO AUDIO(HIFI)FROM/TO DECKIC5F1MN12510FAT2

2019SCHEMATIC DIAGRAM-1(POWER SECTION)RRRR2B3C4C5C6C7C8C9C10C11C12C2C1C1D2D3D13C3B4B5B6B1A1B1B 6B2A3A5.3VA9V5VT33VTGND12VAGND12.3V(CAP)12V(DRUM)-27VG-

2221SCHEMATIC DIAGRAM-2 (AUDIO/VIDEO SECTION)1 3031502 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 2980 5179 78 77 76 75 74

23WAVEFORM-1 (VIDEO SECTION)IC301 Pin 20PBmode500mvp-pIC301 Pin 38 , 32 , 31Video in1Vp-pIC301 Pin 28PB/REC mode4.2Vp-pIC301 Pin 7REC mode1.4Vp-p

24WAVEFORM-2 (SERVO/OSD SECTION)IC501 Pin 241V/5mSREC/PB mdes(V.H/SW)IC501 Pin 271V/2mSQUE/REV modes(D.V-SYNC)IC501 Pin 311V/10mSREC mode(CTL+)IC501P

2625SCHEMATIC DIAGRAM-3 (SYSTEM CONTROL/SERVO SECTION)R5F315R5F215R5F110R5F0101234567891011121314151617181920212223242526272829301 3456 9 12 181

2TABLE OF CONTENTSSPECIFICATIONS ... 3ACCESSORIES LIST ...

2827SCHEMATIC DIAGRAM-4 (SCART SECTION)13 2414 15 16 17 18 19VCC20 22 232112 122424038363432302826242341393735333129272511109876GND532GND4VCC5VREGIC-B

R1234512345678910GNDOTPB "H"5.3VAGNDKEY RTN 1PMK01R5A9120LD5A1SG5311Q5A1KRC103MSW5A7CH UPSW5A8CH DOWNSW5A9 SW5A0OPTBSW5A6SW5A5SW5A4SW5A3SW5A

1234567891011 12 1314ABCDEFGHIJ3231WIRING-1 (MAIN C.B SECTION)R101C102C103C101C105C112C120C121C116C117L104L103C118ECBECBECBECBECBECBECBECBBCEECBECBBCE

331234567ABCDEFGHIJWIRING-2 (FRONT-1 C.B)WIRING-3 (FRONT-2 C.B)SW5A1SW5A6SW5A5SW5A4SW5A2SW5A3R5A3R5A4R5A5R5A1R5A210 57931PKM02To AMAIN C.BPMK02SW5A1

Pin No. Pin Name I/O Description34End sensor to detect the tape’s terminal (Lead taps section).If “H” is detected signal in the REW, REV modes, the me

Pin No. Pin Name I/O Description35KEY RTN11. Input detector port of A/D input key. Samples 256 steps with AVcc in the center and confirms which key

Pin No. Pin Name I/O Description36SYSCON Vcc.Not connectPulses output for switching video head A and B.- Produces PG M.M pulses internally by using in

Pin No. Pin Name I/O Description37GND.The video signal is output to the RF modulator and line output jack.GND.Horizontal sync is used to lock the OSD.

Pin No. Pin Name I/O Description38747576777879808182838485868788MODE SW4MODE SW3MODE SW2MODE SW1I-LIMITREC “H”CAP ACCEL “H”DRUM ADJR/CNCNCNCNCCOMPOSIT

Pin No. Pin Name I/O Description3989909192, 939495969798 ~ 100POWER FAILIICIICNCFLD ENABLEFLD CLOCKFLD DATA INFLD DATA OUTNCIOO–OOIOO1. When a power f

3REF. NO PART NO. KANRI DESCRIPTIONNO.ACCESSORIES LIST 1 S8-35R-P00-34B INSTRUCTION ASSY 3FA1/NFA3<970> 1 S8-35R-P00-36A INS

40ADJUSTMENTTest Equipment• Oscilloscope • Test Tape• AC Millivolt Meter TTV-P1IC502IC7VIP3D02IC301PMC01IC5F1PG ADJ.VR501IC501PMK02T101H/SWP3

411. Servo Adjustment1) PG AdjustmentMODE MEASUREMENT POINT ADJUSTMENT POINT SPECIFICATIONPLAY VIDEO OUTVR501 6.5 ± 0.5H(TTV-P1) H/SW (W317, W318)• A

42MECHANICAL EXPLODED VIEW 1/11B57AAA68C9B1011MAIN C.B12DIG5F1BBTU701CFRONT-2 C.BFRONT-1 C.B234

43REF. NO PART NO. KANRI DESCRIPTIONNO.MECHANICAL MAIN PARTS LIST 1/1Basic color symbol Color Basic color symbol Color Basic color symbol ColorB Black

44MECHANISM EXPLODED VIEW 1/3401002001023024024032406406406028504014012504017013022015401401A01007006005A03009008A02025026027A04011031010018019021020

45REF. NO PART NO. KANRI DESCRIPTIONNO.REF. NO PART NO. KANRI DESCRIPTIONNO.MECHANISM MAIN PARTS LIST 1/3 001 S7-23R-010-5D0 DRUM ASSY SUB D33

46MECHANISM EXPLODED VIEW 2/3056057054053426077426410032071073074075076072078A12A13067066065A11068069070079426064518052055518517061062060063517051059

47REF. NO PART NO. KANRI DESCRIPTIONNO.REF. NO PART NO. KANRI DESCRIPTIONNO.MECHANISM MAIN PARTS LIST 2/3 032 S1-41R-000-2A0 CHASSIS ASSY

48MECHANISM EXPLODED VIEW 3/3101426102103104407407105100110111115116112113114032109108426A22A23A21A24107106

49REF. NO PART NO. KANRI DESCRIPTIONNO.REF. NO PART NO. KANRI DESCRIPTIONNO.MECHANISM MAIN PARTS LIST 3/3 032 S1-41R-000-2A0 CHASSIS ASSY

4DISASSEMBLY INSTRUCTIONS1. Top Case Removal1) Remove 4 screws holding the top case.2. Panel Front Removal (see Fig. 1)1) Release 7 tabs, and then rem

DECK MECHANISM PARTS LOCATIONS50Bracket Side 'L' 5Plate Assembly 2TopLever Assembly 8S/W4 Guide CST3 Holder Assembly CSTOpener Door6 B

DECK MECHANISM DISASSEMBLY51Cap FPCHolder FPC(only for 4HD-Hi-Fi Models)Drum Sub AssemblyRotorH1(S1)(S1)(S2)(S3)(S3)(S2)Drum MotorStatoror orOptional

DECK MECHANISM DISASSEMBLY52H1H3(S1)(S2)(H5)Gear Rack F/L GrooveArm F/L(A)Lever Stopper (L) Bracket Side (L) Bracket Assembly DoorLever Stopper (R) (B

DECK MECHANISM DISASSEMBLY532. Plate Assembly Top (Fig. A-2-1)1) Unhook the (H1) and separate the Left Side.2) Unhook the (H2) and lift up the Plate A

DECK MECHANISM DISASSEMBLY54Arm AssemblyCleanerHead F/EBase Assembly A/C Head(S1)(A)(H1)Fig. A-38. Arm Assembly Cleaner(Fig. A-3-1)1) Break away the (

DECK MECHANISM DISASSEMBLY55Reel TReel SArm AssemblyTensionSpring T BrakeBrake Assembly TBandAssemblyTensionBrake Assembly SSpring S BrakeSpring Tens

DECK MECHANISM DISASSEMBLY56Arm Assembly Pinch Opener LidBase Assembly P4 Support CSTArm Assembly T/up(A)(B)(C)(D)Spring Arm T/UpFig. A-515. Support C

DECK MECHANISM DISASSEMBLY57Belt CapstanMotor CapstanClutch Assembly D33Washer(W1)Washer(W2)Spring Up/DSlide WasherGear Assembly H-Up/D orLever F/R(S

DECK MECHANISM DISASSEMBLY58Bracket Assembly Jog(S1)BrakeAssembly CapstanGuide Rack F/LGear Rack F/L(S2)Hole (B)BrakeAssembly CapstanHole (A)(H2)(H1)S

DECK MECHANISM DISASSEMBLY59H1H2Gear Drive Gear Cam Gear ConnectorBracket AssemblyL/D MotorWasher (W1)Gear ConnectorHole(A')+(A) Hole(B')+(B

5SERVICE POSITIONTo set the mechanism to the service position in active status:Insert a spacer as shown below: The service position can be set in the

DECK MECHANISM DISASSEMBLY60Base TensionGear Sector( S1)WasherPlate Slider(A)Lever Tension(W1)Fig. A-929. Gear Sector (Fig. A-9-1)1) Remove the Washer

DECK MECHANISM DISASSEMBLY61Gear Assembly P3 Gear Assembly P2 Arm Assembly Idler Jog Arm Assembly Idler or(For 2HD Models) (For 4HD Models)Base Assem

DECK MECHANISM ADJUSTMENT62• Tools and Fixtures for Service1. Cassette Torque meter1. SRK-VHT-303(Not SVC part)4. Torque gauge adaptor5. Post height a

Purpose:To determine if the Mechanism is in the correct position, when a Tape is ejected.DECK MECHANISM ADJUSTMENT631.Mechanism Alignment Position Che

Purpose: To insure smooth Transport of the Tape during each Mode of Operation.If the Tape Transport is abnormal, then check the Torque as indicated by

DECK MECHANISM ADJUSTMENT654.Guide Roller Height AdjustmentAdjustment Procedure1) Confirm if the Tape runs along the Tape Guide Line of theLower Drum.

DECK MECHANISM ADJUSTMENT665. Audio/Control (A/C) Head Adjustment10.9-0.05Purpose: To insure that the Tape passes accurately over the Audio and Contro

Purpose: To obtain compatibility with other VCR(VCP) Models.DECK MECHANISM ADJUSTMENT675-2. Confirm that the Tape passes smoothlybetween the Take-up G

Purpose: To correct for shift in the Roller Guide and X value after replacing the Drum.8-2.Check for tape curling or jammingTest Equipment/ Fixture• T

MAINTENANCE/INSPECTION PROCEDURE69(4) F/E Head(3) P1 Post(6) Drum Assembly(Video Head)(5) BaseAssembly P2(2) Tension Post(1) Supply Reel(7) Base Assem

6VCR TEST TAPE INTERCHANGEABILITY TABLEThere are two types of the new allgnment tape CH-1B (for NTSC) and CH-2 (for PAL). On each tape four signals (

MAINTENANCE/INSPECTION PROCEDURE70The recording density of a VCR(VCP) is much higher thanthat of an audio tape recorder. VCR(VCP) components mustbe ve

MAINTENANCE/INSPECTION PROCEDURE71(1) Greasing guidelinesApply grease, with a cleaning patch. Do not use excess grease. It may come into contact with

MECHANISM TROUBLESHOOTING GUIDE72Auto REW doesn't work.Is the output of END sensor of supply side "H"?“H”: more than 3.5V“L”: less than

MECHANISM TROUBLESHOOTING GUIDE73AUTO STOP.(PLAY/CUE/REV)Are there T/up and supply reelpulses.In Play/Cue/Rev is the pinchroller in contact with the c

MECHANISM TROUBLESHOOTING GUIDE74In PB mode Tape Presencenot sensed.Is the Pinch Roller attached to the Capstan Motor Shaft?Check Alignment positions(

MECHANISM TROUBLESHOOTING GUIDE75Cassette cannot be inserted.Does the Lever Switch work?Is the Lever Switch Spring damaged or omitted?Does the F/L swi

MECHANISM TROUBLESHOOTING GUIDE76Cassette will not load.Does the CST insert?Does the opener Lid work?Is the opener Door assembled correctly?Replace th

920074Printed in Singapore2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111

7REF. NO PART NO. KANRI DESCRIPTIONNO.REF. NO PART NO. KANRI DESCRIPTIONNO.ELECTRICAL MAIN PARTS LISTIC SI-SK6-153-00A IC,STR-G6153T 5P! S

8REF. NO PART NO. KANRI DESCRIPTIONNO.REF. NO PART NO. KANRI DESCRIPTIONNO. C701 87-015-698-080 CAP,E 4.7-50V C702 87-015-681-080 CAP,E

9WIRE HARNESS DIAGRAM12345678910GNDKEY RTN01234567891012345GNDOTB "H"5.3VAGNDKEY RTN1123451234567D.CTLM.GNDDFG12VPGGND5.3V123456712345678GND