Aiwa HV-FX970 Service Manual Download Page 12

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BLOCK DIAGRAM-4 (TUNER SECTION)

VIDEO

BUFFER

[FOR FX970Z]

VIDEO(VPS)

Q701

:REC AUDIO SIGNAL

:PB AUDIO SIGNAL

:REC VIDEO SIGNAL

:PB VIDEO SIGNAL

FROM
POWER SECTION

FROM
SYSCON/SERVO
SECTION

FROM
POWER SECTION

TO
SCART SECTION

FROM/TO
SCART SECTION

w w w . x i a o y u 1 6 3 . c o m

Q Q 3 7 6 3 1 5 1 5 0

T E L

1 3 9 4 2 2 9 6 5 1 3

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

Summary of Contents for HV-FX970

Page 1: ...O N This Service Manual is the Revision Publishing and replaces Simple Manual S M Code No 09 996 332 7T1 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3...

Page 2: ...23 Gear Assembly H UP D or Gear Assembly UP D 61 24 Bracket Assembly Jog 62 25 Guide Rack F L Gear Rack F L 62 26 Brake Assembly Capstan 62 27 Gear Drive Gear Cam Gear Connector 63 28 Bracket Assembly...

Page 3: ...0Z EP 10 hours 30 minutes max with T 210 tape HV FX970Z Tape speed PAL MESECAM SP 23 39 mm sec LP 11 69 mm sec HV FX970Z NTSC Playback only SP 33 35 mm sec LP 16 67 mm sec HV FX970Z EP 11 12 mm sec HV...

Page 4: ...on the Main C B 2 Disconnect the ACE head FF cable from the connector P3D02 on the Main C B 3 Remove 6 screws A Fig 3 5 Main C B Removal see Fig 4 1 Remove 2 SCREWS B holding the panel assy distri but...

Page 5: ...MECHA SPACER REAR PANEL Use a spacer with a diameter of 10 15 mm and of any shape round square etc Caution The spacer must be of insulated material of a size that does not hinder the mechanism loadin...

Page 6: ...7 kHz SP CH 1B 4 NTSC Color bar 1 kHz EP No Changed CH 1B 3 NTSC Color bar No sound SP HiFi 400 Hz PAL Stairsteps 1 kHz SP CH 2 2 3 CH 2 4 PAL Color bar 1 kHz LP CH 2 1 PAL Stairsteps 6 kHz SP No Cha...

Page 7: ...015 681 080 CAP E 10 16V 910 C314 87 010 544 010 CAP E 0 1 50V C315 87 015 681 080 CAP E 10 16V C316 87 015 681 080 CAP E 10 16V C318 87 010 402 040 CAP E 2 2 50V C319 87 010 544 010 CAP E 0 1 50V C3...

Page 8: ...0UH L704 87 005 683 080 COIL 8 2M L705 87 005 696 080 COIL 100UH L7V1 87 005 696 080 COIL 100UH 970 L901 87 005 696 080 COIL 100M L902 87 005 696 080 COIL 100M L903 SL A01 01K 018 1 0M K 2 3X3 4 L5 TP...

Page 9: ...5 6 1 2 3 4 5 GND MODE S1 MODE S2 MODE S3 MODE S4 1 2 3 4 5 1 2 GND FULLERASE 1 2 LOWER DRUM CAPSTAN MOTOR MS501 MODE SW FULL ERASE HEAD CYL HEADS A MAIN C B B FRONT1 C B C FRONT2 C B ACE HEAD PKM02...

Page 10: ...H STAND BY H LINE FILTER BLOCK C101 L102 C102 RECTIFIER SMOOTHING D105 C115 27VG S W BLK Q154 R164 R165 Q155 Q156 Q157 R166 R167 RECTIFIER SMOOTHING D108 C119 36V S W BLOCK Q158 R154 R155 12VT REG BLO...

Page 11: ...OTARY 88 59 57 54 52 51 61 72 71 46 45 43 41 91 93 10 18 17 21 20 23 24 28 29 11 LP A PB LP B PB 82 85 IC301 LA71591M Q301 Q302 Q305 Q304 FROM CYL HEADS TO SYSCON SERVO SECTION FROM SYSCON SERVO SECTI...

Page 12: ...OWER SECTION FROM POWER SECTION FROM SYSCON SERVO SECTION FROM SYSCON SERVO SECTION FROM SYSCON SERVO SECTION FROM POWER SECTION TO SCART SECTION FROM TO SCART SECTION w w w x i a o y u 1 6 3 c o m Q...

Page 13: ...FOR FX970Z FOR GX910Z FOR FX970Z FOR GX910Z FOR FX970Z FOR GX910Z FOR FX970Z FOR GX910Z J9A1 J9A2 J9A3 J9A4 J9E1 AV2 DECODER AV1 IN OUT TV FOR FX970Z AV IN OUT TV FOR GX910Z REC AUDIO SIGNAL PB AUDIO...

Page 14: ...CAP PWM DFG DPG CFG CAP ADJ DRUM ADJ A MUTE H IIC CLK IIC DATA IIC CLK IIC DATA V ENV V H SW REC H DV SYNC SECAM DET H TIMER H C ROTARY H AMP SW COMP IN CVin CVout STAND BY H AFT C SYNC INV IIC DATA...

Page 15: ...K R157 1K R169 1K R170 1K R152 1 2K C153 4 7 50 ZD152 MTZ10C ZD104 MTZ5 6B C155 0 1 Q165 KRC101M Q155 KRA103M Q157 KRA103M C156 10 16 D155 1N4003A D154 1N4003A D152 1N4003A C159 10 16 C120 470 25 C151...

Page 16: ...R312 1 8K C311 180P R335 18K C369 0 022 C370 180P C314 0 1 R317 R325 1K C323 47 6 3 C315 10 16 C316 10 16 C317 0 01 C318 2 2 50 R318 4 7K C319 0 1 C351 0 1 C322 47 6 3 C324 0 1 L304 100U R319 1K C325...

Page 17: ...mode 300mVp p IC301 Pin 71 72 REC mode 340mVp p IC301 Pin 24 PB REC mode 5Vp p IC301 Pin 23 PB REC mode 5Vp p IC301 Pin 63 PB mode 600mVp p IC301 Pin 11 PB mode 3 2Vp p IC301 Pin 10 PB mode 1 8Vp p IC...

Page 18: ...T IC501 Pin 40 1V 1mS REC PB modes CFG IC501 Pin 43 100mV 10 S EE PB modes V IN IC501Pin 54 1V 20 S EE PB modes C SYNC TRANSISTOR ILLUSTRATION KRA103M KRC101M KRC103M KTA1267 KTC3198 KTC3199 KTA1268 K...

Page 19: ...ECK IR LED ES501 ST5811 A B T UP END ES502 ST5811 A B SUP END R556 22K R557 27K C536 0 01 R5B3 1K R560 4 7K R5C5 1K C534 4 7 50 C581 0 01 C535 4 7 50 C582 0 01 R5B4 1K R5A1 68K L5S1 33U C5S1 43P Q5S2...

Page 20: ...C7V5 0 056 FOR FX970Z R7V5 10K C701 4 7 50 ZD701 MTZ33B L703 10U C706 470 16 C707 0 01 R707 220 R706 220 C7M2 47 16 C7M5 10 16 R7M3 1K R7M5 220 R7M1 1K C702 10 16 L701 100U C7M3 43P C7M6 27P C703 4 7...

Page 21: ...6 C947 10 16 Q906 KTC3199 BL D904 1SS133 D903 1SS133 R943 1 5K C956 0 1 50 C909 43P C946 10 16 IC901 BH7635S C952 0 1 C958 39P C9A1 1000P C951 47 16 C913 1000P L914 100u JK901 SCART1 A MAIN SCART SECT...

Page 22: ...CORE 1J C951 47 16 C952 0 1 C958 39P JK901 SCART1 1 2 3 4 5 6 7 AUDIO R OUT AUDIO R IN AUDIO L OUT GND GND AUDIO L IN 8 9 10 11 12 13 14 SCART H GND GND GND 15 16 17 18 19 20 21 GND GND VIDEO OUT VID...

Page 23: ...C363 C304 R309 L301 Q302 R307 R305 C307 L302 Q301 L308 R338 R341 R306 R349 R308 C306 C301 C303 C3B1 C353 R414 C414 R415 R416 C416 R418 C417 C412 C415 C305 R311 C413 C355 PMD01 R431 C431 R409 R408 Q404...

Page 24: ...08 C4A1 C423 C309 C363 C304 R309 L301 Q302 R307 R305 C307 L302 Q301 L308 R338 R341 R306 R349 R308 C306 C301 C303 C3B1 C353 R414 C414 R415 R416 C416 R418 C417 C412 C415 C305 R311 C413 C355 PMD01 R431 C...

Page 25: ...TOP EJECT SW5A2 REW B FRONT 1 C B B C E LD5A1 R5A8 SW5A9 SW5A7 SW5A8 R5A6 R5A7 SW5A0 R5A9 Q5A1 C5A1 1 5 PKM01 3 To A MAIN C B PMK01 SW5A0 SW5A9 ONE TOUCH PLAYBACK POWER STANDBY ON SW5A7 SW5A8 CHANNEL...

Page 26: ...V EE mode from SECAM I C Not connect Not connect Port to detect AFT s state during tuning When more than 4V is detected by AFT detector Detects AFT s state during tuning When less than 0 96V is detect...

Page 27: ...loading motor s direction of rotation 2 Control table of loading motor s driving direction Now input signal is CANAL PREMIER from SCART 2 No KEY NAME A D RANGE 1 SP EP 0 0V 0 45V 2 CH UP 0 46V 0 96V...

Page 28: ...e speed Viss and Real time counter are performed by using CTL pulse input output Servo circuit GND in the COM Port for gain Amp control of CTL pulse during recording and playback D FG pulse input acco...

Page 29: ...inate pop noise generated in each mode during early switching point Approx 500ms EE VV TUNER LINE POWER ON OFF CH UP DOWN etc Now TUNER system is SECAM L to TUNER SCART 8 pin level control to GND or 7...

Page 30: ...hrough RC901 which amplifies and detects the R C signal 2 After input signal is decoded in u COM IC501 and performs related key operation Not connect 1 Input C Sync composite sync to confirm whether v...

Page 31: ...IC IC5F1 Outputs clock signal to operate FLD Drive IC IC5F1 Serial interface signals for FLD Drive IC control Not connect AC POWER ON AC POWER OFF t t t t t t Power failure compensation cancel state P...

Page 32: ...R501 IC501 PMK02 T101 H SW P3D01 IC503 TU701 W318 W317 A MAIN C B TOP VIEW Adjustment Location www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q T...

Page 33: ...W W317 318 and CH2 to the Video Out for the VCR 3 Trigger the mixed Video Signal of CH2 to the CH1 H SW W317 W318 and then check the distance time difference which is from the selected A B Head point...

Page 34: ...FRPNT 2 C B FRPNT 1 C B 2 3 4 2SCART For FX970Z 1SCART For GX910Z www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 8...

Page 35: ...7 2F0 PANEL FRONT 970Z 3 S4 426 81A 000 SPRING DOOR 4 S5 80R 003 3F0 DOOR CST 910Z 4 S5 80R 003 3G0 DOOR CST 970Z 5 S5 50R 021 0A0 COVER BOTTOM 910Z 5 COVER BOTTOM 970Z 6 S2 10R 002 3D0 FRAME MAIN 7 D...

Page 36: ...A02 025 026 027 A04 011 031 010 018 019 021 020 029 003 003 004 409 016 For FX970Z For GX910Z For FX970Z For GX910Z www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0...

Page 37: ...Y S 020 S9 70R 005 3A0 SPRING TB 021 S4 21R 000 4A0 BRAKE ASSY T 022 S5 238 33B 000 HEAD FE D33 023 S9 80R 001 0A0 SUPPORTER CST 024 S2 61R 000 8A0 ARM ASSY IDLER 910Z 024 S2 61R 000 9A0 ARM ASSY IDLE...

Page 38: ...068 069 070 079 426 064 518 052 055 518 517 061 062 060 063 517 051 059 A14 058 For FX970Z www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 1...

Page 39: ...L D 067 GEAR P3 068 GEAR P2 069 SPRING L D 070 LEVER P2 071 BRACKET JOG 970Z 072 LEVER JOG 970Z 073 LEVER SLOW 970Z 074 S9 70R 004 9A0 SPRING JOG 970Z 075 GEAR JOG 970Z 076 ARM JOG 970Z 077 S3 00R 015...

Page 40: ...6 112 113 114 032 109 108 426 A22 A23 A21 A24 107 106 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL...

Page 41: ...ARM F L L 111 SPRING F L L 112 BODY F L 113 SPRING F L R 114 ARM F L R 115 S9 70R 005 0A0 SPRING SWITCH 116 S5 10R 002 0A0 LEVER SWITCH 407 87 841 034 210 SCREW PAN HEAD 2 0 5 0 426 87 261 094 410 PAN...

Page 42: ...embly S W Chassis Hole A 2 9 Arm Assembly Cleaner Chassis Embossing A 3 10 Head F E 2 Hooks A 3 11 Base Assembly A C Head 1 Screw A 3 12 Brake Assembly S Chassis Hole A 4 2 3 13 Brake AssemblyT Chassi...

Page 43: ...ove two Screws S2 and Separate the Stator of Drum Motor 4 Remove two Screws S3 and Separate the Rotor of Drum Motor from the Drum Sub Assembly 1 When reassembling Cap FPC two Holes of Drum FPC are ins...

Page 44: ...de CST Arm Assembly F L Holder Assembly CST Plate Assembly Top Groove Fig A 2 Fig A 2 1 Fig A 2 2 Fig A 2 6 Fig A 2 7 Fig A 2 5 Fig A 2 3 Fig A 2 4 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL...

Page 45: ...Remove the Screw S1 and disassemble the Bracket Side L in the front 2 Remove the Screw S2 and disassemble the Bracket Assembly Door in the front 6 Arm Assembly F L Fig A 2 6 1 Push the Arm Assembly F...

Page 46: ...Cleaner 9 Head F E Fig A 3 2 1 Unhook the two Hooks H1 on the back side of the Chassis and lift up the Head F E 10 Base Assembly A C Head Fig A 3 3 1 Remove the Screw S1 and lift up the Base Assembly...

Page 47: ...to Fig B 2 13 Arm Assembly Tension Fig A 4 3 1 Remove the SpringTension 2 Hold the C part shown above Fig A 4 3 and turn to the clock wise direction and then lift up the Arm AssemblyTension 1 When re...

Page 48: ...ly T up Refer to Fig A 5 4 D 2 Break away the C Part of the Opener Lid from the Embossing of the Chassis in the Clockwise direction and lift up the Opener Lid 18 Arm Assembly T up Fig A 5 4 1 Confirm...

Page 49: ...ch Assembly D33 22 Lever F R Fig A 6 4 1 Unhook the H1 shown above Fig A 6 4 and lift up the Lever F R 1 When reassembling move the C part of the Lever F R up and down then confirm if it is returned t...

Page 50: ...the Gear Rack F L 26 Brake Assembly Capstan Fig A 7 4 1 Hook the Spring Capstan on the Hook H1 2 Unhook the Hook H2 and lift up the Brake Assembly Capstan Refer to Fig to the right 1 When reassembling...

Page 51: ...8 3 2 When reassembling confirm that the Hole B of the Gear Cam is aligned to the Hole B of the Chassis Fig A 8 2 3 When reassembling confirm that the C part of the Gear Cam is aligned to the D part...

Page 52: ...on 2 Lift up the Plate Slider 3 Hold the A Part of the Lever Tension and turn to the counterclockwise direction and then lift up the Lever Tension 1 When reassembling turn the Lever Tension to the clo...

Page 53: ...P3 2 Move the Base Assembly P2 in the direction of the arrow of the Chassis Hole B and push down the Base Assembly P2 33 Arm Assembly Idler Jog or Arm Assembly Idler Fig A 10 5 1 Unhook the Hook H3 an...

Page 54: ...L SP LP 2 4 Head TTV P2L B PAL SP 2 Head TTV P2 C NTSC SP LP EP 2 4 Head TTV N1 TTN N12 D NTSE SP 2 Head TTV N2 Slantness Height Azimuth A commercially available tape A C Head TTV P1 TTV P1L TTV P2 TT...

Page 55: ...r Cam is aligned with the Gear Drive as below Fig C 1 A 5 Confirm if the Mode S W on the Main P C Board is aligned as below Fig C 1 B 6 Remount the Deck Mechanism on the Main P C Board and check each...

Page 56: ...lied to both Reels SRK VIDEO CASSETTE TORQUE METER VHT 303 S R K V H T S SRK V HT T 300 250 200 150 50 0 300 250 200 150 50 0 100 Test Equipment Fixture Torque Gauge 600g cm ATG Torque Gauge Adaptor C...

Page 57: ...te Play an Alignment Tape Adjustment Point Guide Roller Height Adjustment Screws Fig C 4 2 Fig C 4 3 P3 POST ADJUSTMENT P2 POST ADJUSTMENT Turn the Roller Guide Height Adjustment Screw slightly to fla...

Page 58: ...e Preliminary Adjustment when there is no Audio Output Signal with the Alignment Tape 1 Initially adjust the Base Assembly A C Head as shown Fig C 5 1 by using the Height Adjustment Screw B 2 Play a B...

Page 59: ...maintaining the flattest Envelope differential between the two Frequencies Adjustment Procedure 5 3 Precise Adjustment Azimuth adjustment 6 X Value Adjustment Fig C 5 4 1KHZ Oscilloscope Alignment ta...

Page 60: ...itching Point Tracking Preset X Value Checking Adjustment Procedure Play a blank tape and check for tape curling or creasing around the roller guide If there is a problem then follow the procedure 4 G...

Page 61: ...e the EXPLODED VIEWS at the end of this manual as well as the above illustrations See the Greasing Page 4 22 for the sections to be lubricated and greased NOTE o o o o Dirt on video head Dirt on tape...

Page 62: ...t and left Do not move the cleaning patch vertically Make sure that only the buckskin on the cleaning patch comes into contact with the head Otherwise the head may be damaged Thoroughly dry the head T...

Page 63: ...Inside Hole 8 Reel S T Shaft G381 Yellow 9 Brake T Groove Guide Rail Gear Assembly Up D Gear Drive Gear Sector Gear Cam Press Cam Part Cam Part Gear Part Stopper Part Bracket Side L Bracket Assembly D...

Page 64: ...R Mode Is the mode SW assembled correctly refer to Pages 4 14 Is the normal voltage supplied to the Capstan Motor Vcc1 Vcc2 Does terminal voltage Vctl of Capstan Motor supply side more than 4V Check...

Page 65: ...nsert the cassette Check Cassette Carry Assembly Is there variation for F L S W Output In Tape with REC Tab L H L In Tape without REC Tab L H L H Does the F L S W work normally Does the lever S W work...

Page 66: ...oltage of the Drum Motor more than 2 3V Replace the Drum Motor Is the Vcc voltage of the Drum Motor normal Check the clutch and the Idler Assembly YES YES YES YES YES YES YES YES NO NO NO NO NO Is the...

Page 67: ...t or Replace the main P C Board NO Check Mode switch location and syscon circuit Replace F L Switch YES NO YES NO NO Replace F L Switch NO NO Cassette will not eject Does the L D motor rotate in rever...

Page 68: ...k F L Does the Gear Rack F L work Does the Opener Door work Does the Arm Assembly F L work Does the L D Motor work Does the Holder Assembly Cassette move the Arm Assembly F L Replace the Front Loading...

Page 69: ...YO 110 8710 JAPAN TEL 03 3827 3111 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376...

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