User manual AIWA IC-M120

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[. . . ] 5 SERVICE POSITION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 ~ 10 TRANSISTOR ILLUSTRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 WIRE HARNESS DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] NO Replace the F101 (Use the same Fuse). Is there DC voltage at the IC101 Pin 4?YES Check the MAIN C. B 5. 3VA/5. 0V Line short? NO Replace the IC102. NO Replace the IC103. NO Replace the D106. -56- ELECTRICAL TROUBLESHOOTING -2/17 7. NO Check whether 5. 3VA is out of order. (3) No 12VT (CANAL, Buffer) No 12VT. NO Replace the Peripheral Circuitry of Q155. -57- ELECTRICAL TROUBLESHOOTING -3/17 2. Servo Circuit A. Unstable Video in PB Mode. Does the on screen noise level change periodically? YES Do CTL pulses appear at IC501 pin 8? YES NO Does the CFG divide waveform appear at IC501 pin 9? YES Is the height of the CTL Head adjusted correctly? NO Do the CTL pulses move when TRK is operated? YES NO Adjust the CTL Head. Does the Video Envelope waveform appear at IC501 Pin 24? YES NO Replace IC501. Replace IC501. Check AVCP IC. -58- ELECTRICAL TROUBLESHOOTING -4/17 7. YES Check D108 and FR01. Check F 102/D107. -59- ELECTRICAL TROUBLESHOOTING -5/17 C. Capstan Motor Stopped. Does 12VA appear at PMD02 Pin 5? YES NO Does 2. 8V appear at PMD02 Pin 4? YES NO Check Power. Check Connector and Capstan Motor Ass'y. YES Does PWM wave appear at IC501 Pin 108? NO Check the Components and foil Patterns Connected between IC501 Pin 108 and PMD02 Pin 4 for shorts. YES Does the CFG signal appear at PMD02 Pin 6? NO Does the CFG signal appear at IC501 Pin 9? YES NO Check Capstan Motor Ass'y. Does Capstan PWM appear at IC501 Pin 108? YES NO Check Components and foil patterns between PMD02 Pin 6 and IC501 Pin 9 for shorts. Check the components and foil pattern connected between IC501 Pin 108 and PMD02 Pin 4 for shorts Replace IC501. -60- ELECTRICAL TROUBLESHOOTING -6/17 B. Drum Motor stopped. Does 12V appear at PMD01 Pin 4? YES NO Does 2. 8V appear at PMD01 Pin 1? NO Check Power. Check Connector and Drum Motor Ass'y. Does Drum PWM appear at IC501 Pin 107? NO YES Check the Components and foil Pattern between IC501 Pin 107 and PMD01 Pin 1 for shorts. YES Do DFG Pulses appear at PMD01 Pin 3? NO Do DFG Pulses appear at IC501 Pin 104? YES NO Check Drum Monitor Ass'y. Does the Drum PWM waveform appear at IC501 Pin 107? YES NO Check the Components and foil pattern between PMD01 Pin 3 and IC501 Pin 104 for shorts. Check the Components and foil Pattern Connected to IC501 Pin 107 PMD01 Pin 1 for shorts. Replace IC501. -61- ELECTRICAL TROUBLESHOOTING -7/17 B. Cassette tape loading is unstable. Is REG 12V applied to IC502 Pin 7? YES NO Is High signal applied to IC501 Pin 30 when inserting the CST? NO Check the power. Is 5. 3V applied to R544? YES YES NO Does Low signal occur form IC501 Pin 72 when inserting the CST? YES NO Check the CST SW and peripheral circuitry. Check the power. Does 6. 2V occur from IC502 Pin 2 when inserting the CST? YES NO Check IC501 Pins 68, 69, 70, 71. Check the Deck Mechanism. Change IC502 or ZD501(GDZJ 6. 2C). NOTE : Auto stop may also be caused by lack of lubrication, due to dried grease or oil. Non working function buttons. Is the voltage of IC501 Pin 36, 5. 2VA? YES NO Does(Digitron) display change when a function button is pressed? YES NO Check the power. Replace IC501. YES CHECK IC5F1 (IC5F1 PIN 15~30, PIN36~44 pulse output) NO Replace the defective switch. Replace IC5F1 -62- ELECTRICAL TROUBLESHOOTING -8/17 3. Y/C CIRCUIT (2) When the Y(Luminance) signal doesn't appear on the screen in PB Mode, Is 5V applied to the IC301 Pins 16, 40, 55, 58, 87?(IC501 Pin 105) Refer to 'SYSTEM I2C BUS CHECK Trouble Shooting'. Hi-Fi Playback. YES No sound Check the Vcc of IC801. (Pins 34, 40) NO YES Check the Hi-Fi Selection Switch and the Tape quality. YES Check power. Is the RF Envelope at IC801 Pin 44 over 2Vp-p? YES NO Is the Head switching signal IC802 Pin 41 O. K? YES NO Check IC501 Pin 106. (Audio head switch 25) Check IC801 Pin 42(Data), Pin 43(Clock). YES NO Check the connection at P3D01 if good then Replace IC801. Do Audio signals appear at IC801 Pin 16(L-CH), 17(R-CH)? YES NO Check Ports of µ-COM. Check the Signal path of Audio Output. Replace IC801. -71- ELECTRICAL TROUBLESHOOTING -17/17 B. Hi-Fi REC. It is impossible to record and playback Hi-Fi Audio signal. YES Check Vcc of IC801. (Pins 34, 40) YES NO Check IC801 Pin 42(Data), Pin 43(CLOCK). YES NO Check Power. Do Audio signals appear at IC801 Pins 16, 17? YES NO Check ports of µ-COM. Do FM Audio signals appear at IC801 Pin 36? YES NO Check Audio input signal of IC801 Pins 2, 3(TU. A. ), 6, 7(Scart 1) Check the Contact Points of Drum Connector if good then Replace the Drum. Replace IC801. -72- MECHANICAL EXPLODED VIEW -1/1 457 457 457 457 457 462 457 250 300 462 260 452 A00 TU701 JK901 320 452 PWB 323 330 452 275 PWB PWB A43 A43 A43 283 283 284 284 283 284 280 280 280 (FX5850 Model) (FX7800 Model) (GX1700, GX1400, GX1100 Models) -73- MECHANICAL MAIN PARTS LIST 1/1 REF. DESCRIPTION 250 S1-10R-012-8U0 260 -------- 275 S9-30R-010-2A0 280 -------- 280 -------- 280 -------- 280 -------- 280 -------- 283 S5-80R-V00-6S0 283 S5-80R-V00-1Q0 283 283 283 284 300 320 320 320 323 330 S5-80R-V00-6G0 S5-80R-V00-6K0 S5-80R-V00-6L0 S4-426-81A-000 S4-10R-BHV-01A S7-20R-D02-0C0 S7-20R-D02-0A0 S7-20R-D02-0B0 S1-11R-008-9B0 S5-50R-021-0A0 CASE, TOP FRAME, MAIN HOLDER LED PANEL FRONT(929TP:FX7800Z)<78> PANEL FRONT(911TP:FX5850Z)<58> PANEL, FRONT FRONT(CCA200TP)<11> PANEL, FRONT FRONT(CCA204TP)<14> PANEL, FRONT FRONT(CCA209TI)<17> DOOR CST (CFA929MI)<78> DOOR CST (911MI:FX5850K)<58> DOOR CST (CCA200TP)<11> DOOR CST (CCA204TI)<14> DOOR CST (CCA209TI)<17> SPR, DOOR CORD POWER H03VVH2-F2 PANEL DISTRIBUTOR(PAL-2SCART<78, 58> PANEL DISTRIBUTOR(PAL-1SCART)<11> PANEL DISTRIBUTOR(PAL-SCART<14, 17> CASE ASSY COVER BOTTOM SCREW, SPECIAL SCREW, 3-12 SCREW, SPECIAL(FBK) DECK ASSY, VIDEO D33Y1 DI(4HF, <78, 58> DECK ASSY, VIDEO D33Y1 DI(2HD, <11, 14, 17> PANEL PANEL PANEL PANEL PANEL ASSY FRONT(FX7800K)<78> ASSY, FRONT(FX5850K)<58> ASSY, FRONT FRONT(CCA200T<11> ASSY, FRONT FRONT(CCA204T<14> ASSY, FRONT FRONT(CCA209T<17> ! 452 S3-530-51A-000 457 87-741-097-410 462 S3-531-36A-000 A00 -------- A00 -------- A43 A43 A43 A43 A43 S7-21R-F14-1G0 S7-21R-F13-5W0 S7-21R-F20-1A0 S7-21R-F20-1D0 S7-21R-F20-1E0 TYPE <78> <58> <17> <14> <11> MODEL NAME SUFFIX HV-FX7800 K HV-FX5850 K IC-M120 K HV-GX1400 K HV-GX1100 K -74- COLOR NAME TABLE COLOR NAME TABLE Basic color symbol Color Basic color symbol Color Basic color symbol Color B Black C Cream D Orange G Green H Gray L Blue LT Transparent Blue N Gold P Pink R Red S Silver ST Titan Silver T Brown V Violet W White WT Transparent White Y Yellow YT Transparent Yellow LM Metallic Blue LL Light Blue GT Transparent Green LD Dark Blue DT Transparent Orange GM Metallic Green YM Metallic Yellow DM Metallic Orange PT Transparent Pink LA Aqua Blue GL Light Green -75- 100 426 426 103 117 106 105 107 101 A21 A22 108 MECHANISM EXPLODED VIEW -1/3 109 -76110 104 112 113 115 116 114 A23 032 MECHANISM MAIN PARTS LIST -1/3 REF. DESCRIPTION S1-41R-000-2C0 S3-01R-003-2A0 S8-10R-006-8A0 -------- S9-74R-001-9A0 -------- -------- -------- -------- -------- CHASSIS ASSY D33Y PLATE ASSY TOP BRACKET SIDE(L) HOLDER SIDE(L) GUIDE CST HOLDER CST HOLDER SIDE(R) LEVER STOPPER(R) BRACKET SIDE(R) OPENER DOOR ARM, F/L (L) BODY F/L SPRING F/L(R) ARM F/L(R) SPRING SWITCH LEVER SWITCH SPR, PLATE PAN HEAD SCREW 3-6 HOLDER ASSY BRACKET ASSY DOOR ARM ASSY F/L 110 -------- 112 -------- 113 S9-70R-005-6A0 114 -------- 115 S9-70R-005-0A0 116 117 426 A21 A22 S5-10R-002-0A0 -------- 87-261-094-410 S9-31R-003-1A0 S8-11R-001-8A0 A23 S2-61R-001-6A0 -77- 505 002 401 401 401 007 006 A03 A04 029 025 001 016 409 MECHANISM EXPLODED VIEW -2/3 022 011 003 004 013 027 015 (FX7800, FX5850 Models) 026 031 012 014 (GX1700, GX1400, GX1100 Models) -78003 017 023 018 019 504 032 406 406 406 009 020 028 504 021 024 MECHANISM MAIN PARTS LIST -2/3 REF. DESCRIPTION S7-23R-D20-6B0 S7-23R-D10-4B0 S6-80R-B00-2A0 S9-30R-010-8A0 S9-30R-010-6A0 DRUM(CIRC) ASSY UPPER ASSY PAL<78, 58> DRUM(CIRC) ASSY SUB D33-2CH SP<11, 14, 17> MOTOR(MECH) DRUM GVD-D33Y HOLDER FPC(6CH)<78, 58> HOLDER FPC(2CH)<11, 14, 17> CAP, FPC ROLLER CLEANER ARM CLEANER ARM ASSY T/UP(D-33K) ARM ASSY TENSION (D-33K) BASE ASSY P2 BASE ASSY P3 BASE ASSY P4 OPENER LID BASE ASSY A/C HEAD REEL S SPRING SB BRAKE ASSY S SPRING TB BRAKE ASSY T HEAD FE D33 SUPPORTER CST ARM ASSY IDLER BRACKET L/D MOTOR MOTOR ASSY L/D GEAR WHEEL REEL T ARM ASSY PINCH SPRING TENSION CHASSIS ASSY D33Y SCREW, 2. 6-4. 0 PAN HEAD SCREW 3-6 SCREW, PAN HEAD 3. 0-8. 0 WASHER, P. S 3. 1-6-0. 5 CABLE, FLEXIBLE 220M/M CLEANER ARM ASSY BRACKET ASSY L/D MOTOR TYPE <78> <58> <17> <14> <11> MODEL NAME SUFFIX HV-FX7800 K HV-FX5850 K IC-M120 K HV-GX1400 K HV-GX1100 K 004 S0-06R-002-0A0 006 -------- 007 -------- 009 S2-61R-001-7A0 011 S2-61R-001-8A0 012 013 014 015 016 017 018 019 020 021 S0-41R-000-3A0 S0-41R-000-4A0 S0-41R-000-7A0 S8-70R-000-3A0 S0-41R-000-5B0 S4-08R-000-1B0 S9-70R-005-4A0 S4-21R-000-3A0 S9-70R-005-3A0 S4-21R-000-4A0 022 S5-238-33B-000 023 S9-80R-001-0A0 024 S2-61R-001-3A0 025 -------- 026 -------- 027 028 029 031 032 401 406 409 504 505 S4-70R-002-5A0 S4-08R-000-2B0 S2-61R-001-1A0 S9-70R-006-9A0 S1-41R-000-2C0 SM-PC0-261-418 87-261-094-410 87-741-095-410 S3-540-01B-000 S8-50R-HE2-2Z0 A03 S2-61R-001-5A0 A04 S8-11R-001-9A0 -79- 051 A14 052 059 A11 067 065 066 A12 068 070 069 058 426 518 MECHANISM EXPLODED VIEW -3/3 518 064 053 517 055 061 060 519 057 054 077 -80056 062 063 032 410 426 079 078 MECHANISM MAIN PARTS LIST -3/3 REF. NO 032 051 052 053 054 055 056 057 058 059 060 061 062 063 064 PART NO. DESCRIPTION S1-41R-000-2C0 S4-00R-000-5A0 S6-80R-A00-1A0 S9-74R-001-8A0 S4-70R-003-7A0 S4-70R-003-3A0 S4-70R-003-2B0 S4-70R-003-6B0 -------- S9-70R-005-9A0 S5-10R-002-5B0 S2-65R-000-3A0 S4-70R-005-8A0 S9-70R-005-1A0 S4-70R-003-4A0 CHASSIS ASSY D33Y BELT CAPSTAN MOTOR(MECH) CAPSTAN F2QSB53 GUIDE RACK F/L GEAR RACK F/L GEAR DRIVE GEAR, CAM GEAR CONNECT BRAKE CAPSTAN<78, 58> SPRING CAPSTAN<78, 58> F/R LEVER CLUTCH ASSY D33K GEAR, UP/D33K SPRING UP/D GEAR SECTOR LEVER P3 SPRING L/D GEAR P3 GEAR P2 SPRING L/D LEVER P2 PLATE SLIDER LEVER TENSION BASE, TENSION(D-33K) SCREW, PAN HEAD 2. 6-6. 8 PAN HEAD SCREW 3-6 WASHER STOPPER WASHER STOPPER WASHER STOPPER GEAR ASSY P3 GEAR ASSY P2 CAPSTAN BRAKE ASSY<78, 58> 065 -------- 066 S9-70R-004-6A0 067 -------- 068 -------- 069 S9-70R-004-6A0 070 077 078 079 410 426 517 518 519 A11 -------- S3-00R-015-7A0 S5-10R-002-2A0 S0-40R-002-1A0 SA-PF0-262-218 87-261-094-410 SW-ZZR-000-4B0 SW-ZZR-000-4A0 SW-ZZR-000-4D0 S4-70R-002-8A0 A12 S4-70R-002-6A0 A14 S4-21R-000-5C0 -81- DECK MECHANISM PARTS LOCATIONS · Top View Pracedure Starting No. Part Fixing Type Figure A-2 A-2 A-2 A-2 A-2 A-2 A-2 A-3 A-3 A-4 A-4 A-4 A-4 A-4 1 Drum Assembly 2 Plate Assembly Top Bracket Side 'L' 5 6 Bracket Assembly Door Plate Assembly 2 Top 7 Arm Assembly F/L Opener Door Lever Assembly 8 S/W 3 Screws , Cap FPC A-1 Two Hooks Chassis Hole 2 Hooks 1 Screw 1 Screw Chassis Hole Chassis Hole 2 Hooks 1 Screw Chassis Hole Chassis Hole Chassis Hole Chassis Shaft Chassis Shaft 2 2, 3, 4 2, 3, 4 2, 3, 4, 5, 6 2, 3, 4, 5 3 Holder Assembly CST 4 Guide CST 5 Bracket Side (L) 6 Bracket Assembly Door 7 Arm Assembly F/L 8 Lever Assembly S/W 9 Arm Assembly Cleaner 10 Head F/E 11 Base Assembly A/C Head 12 Brake Assembly S 4 Guide CST 3 Holder Assembly CST Chassis Embossing A-3 9 Arm Assembly Cleaner Head F/E 10 33 Bracket Assembly L/D Motor 11 Base Assembly A/C Head 21 Arm Assembly Pinch 19 Opener Lid Support CST 17 Base Assembly P2 41 Brake Spring S Brake Assembly S 12 Arm Assembly 14 Tension Band Assembly Tension Reel S 15 Lever Assembly S/W 8 18 Base Assembly P4 40 Base Assembly P3 20 Arm Assembly T/Up 42 Arm Assembly ldler 16 Reel T 13 Brake Assembly T Brake Spring T 2, 3 2, 3, 12, 2, 3, 13 13 Brake Assembly T 14 Arm Assembly Tension 16 Reel T 17 Support CST 18 Base Assembly P4 19 Opener Lid Drum Assembly 1 2, 3, 12, 14 15 Reel S Chassis Embossing A-5 Chassis Embossing A-5 Chassis Embossing A-5 Chassis Embossing A-5 Chassis Shaft A-5 19 19 20 Arm Assembly T/Up 21 Arm Assembly Pinch · Bottom View Pracedure Starting No. Part Belt Capstan Motor Capstan Clutch Assembly D33-K Lever F/R Gear H-Up/D-K Guide Rack F/L Gear Rack F/L Brake Assembly Capstan Gear Drive Gear Cam Gear Connector Bracket Assembly L/D Motor Gear Sector BaseTension Plate Slider Fixing Type 3 Screws 1 Washer 1 Hook 2 Washers 1Screw Chassis Shaft 1 Washer Chassis Shaft Chassis Shaft 3 Hooks 3 Washers 1 Screw Chassis Shaft Figure A-6 A-6 A-6 A-6 A-6 A-7 A-7 A-7 A-8 A-8 A-8 A-8 A-9 A-9 A-9 Motor Capstan 23 Gear Connector 32 Gear Cam 31 Brake Assembly 29 Capstan Belt Capstan 22 Gear Drive 30 Guide Rack F/L 27 Gear Rack F/L 28 Clutch Assembly D33-Y 24 Lever F/R 25 38 Gear Assembly P3 39 Gear Assembly P2 35 Base Tension 34 Gear Sector 37 Lever Tension 36 Plate Slider 26 Gear Assembly H-Up/D-K (For High Rewind Models) 26 Gear Assembly Up/D-K (For Normal Models) Option NOTE : When reassembly perform the procedure in the reverse order. 1) When reassembling, confirm Mechanism and Mode Switch Alignment Position (Pefer to Page 95) 2) When disassembling, the Parts for Starting No. Should be removed first. 22 23 24 22, 24 25 22, 24 26 27 27 28 27, 28 29 27, 28 30 27, 28, 29 31 27, 28, 29, 30 32 33 34 35 22, 24, 25, 36 27, 28, 30, 34, 35 22, 24, 25, 37 27, 28, 30, 34, 35 34 38 A-10 34, 38 39 34, 38, 39 40 34, 38, 39, 40 41 1, 2 42 22 Lever Tension Chassis Hole A-9 Gear Assembly P3 Gear Assembly P2 Base Assembly P3 Base Assembly P2 Arm Assembly Idler 2 Hooks 2 Hooks Chassis Hole Chassis Hole 1 Hook A-10 A-10 A-10 A-10 -82- DECK MECHANISM DISASSEMBLY (S2) (S2) (S3) Drum Motor (S3) Rotor Stator Drum Sub Assembly (Fig. A-1-1) Drum FPC (S1) (For Jog Shuttle Models) (S1) Optional Parts Holder FPC (only for 2HD Models) (S1) or Holder FPC (only for 4HD-Mono Models) or Holder FPC (only for 4HD-Hi-Fi Models) H1 Cap FPC (Fig. [. . . ] To ensure a good picture, periodic inspection and maintenance, including replacement of worn out parts and lubrication, is necessary. 4. Supplies Required for Inspection and Maintence (1) (2) (3) (4) Grease : Kanto G-311G (Blue) or equivalent Isopropyl Alcohol or equivalent Cleaning Patches Grease : Kanto G-381(Yellow) : Used only for Reel S and Reel T 3. Scheduled Maintenance Schedules for maintenance and inspection are not fixed because they vary greatly according to the way in which the customer uses the VCR(VCP), and the environment in which the VCR(VCP) is used. But, in general home use, a good picture will be maintained if inspection and maintenance is made every 1, 000 hours. [. . . ]

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