Aiwa HV-FX5850 - SERVICE Service Manual Download Page 31 | Manualshive

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WIRING -3/4 (KEY-1 C.B)

-31-

<HV-FX7800>

<HV-FX5850>

E C B

KEY 1 C.B

To
MAIN C.B
PMK02

JK901
VIDEO

JK902
AUDIO-L

JK903
AUDIO-R

ENTREE(AV 3)

LECTURE

D’UNC TOUCHE

SW903,LED902

SW901

SW902

CHAINE

SW904

MARCHE/
VEILLE

E C B

KEY 1 C.B

To
MAIN C.B
PMK02

LECTURE

D’UNC TOUCHE

SW903,LED902

SW901

SW902

CHAINE

SW904

MARCHE/
VEILLE

5

1

1

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4

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A

B

C

D

E

F

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H

I

J

K

L

M

N

O

P

Q

R

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T

U

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Summary of Contents for HV-FX5850 - SERVICE

Page 1: ...SERVICE MANUAL D A T A BASIC VIDEO MECHANISM D33Y1 4HF PAL 6721RF0450A STEREO VIDEO CASSETTE RECORDER HV FX7800 HV FX5850 S M Code No 09 016 357 3N4 EH EH HV FX5850 HV FX7800...

Page 2: ...73 17 Opener Lid 73 18 Arm Assembly T up 73 19 Arm Assembly Pinch 73 20 Belt Capstan Motor Capstan 74 21 Clutch Assembly D33 Y 74 22 Lever F R 74 23 Gear H Up D K or Gear Up D Y 74 24 Bracket Assembl...

Page 3: ...ck only SP 33 35 mm s LP 16 67 mm s EP 11 12 mm s Rewind time Approx 3 min with E 180 tape Channel coverage VHF E02 E12 UHF E21 E69 CATV S01 S41 Video input 0 5 2 0 Vp p 75 ohm unbalanced Video output...

Page 4: ...0 66U INSTRUCTION ASSY CFA911MP 58 2 S7 11R 1P0 33D REMOTE CONTROLLER ASSEMBLY CFA 78 2 S7 11R 1P0 33J REMOTE CONTROLLER ASSY CFA910T 58 3 S8 50R CAA 260 CABLE COAXIAL 1200M M 4 S8 51R P00 03F CABLE A...

Page 5: ...the direction of arrow 2 Fig 2 4 Mechanism Removal see Fig 3 1 Disconnect the drum FF cable from the connector PMD01 on the Main C B 2 Disconnect theACE head FF cable from the connector P3D02 on the M...

Page 6: ...e status Insert a spacer as shown below The service position can be set in the stable status without any defective contact Location Install spacers at locations A and B MAIN C B D33 MECHANISM SPARSER...

Page 7: ...z CH 1B 2 NTSC Stairsteps 1 kHz SP No Changed NTSC Color bar 1 kHz EP CH 1B 4 2 No Changed CH 1B 1 NTSC Stairsteps 7 kHz SP CH 1B 4 NTSC Color bar 1 kHz EP No Changed CH 1B 3 NTSC Color bar No sound S...

Page 8: ...80 CAP E 4 7 50V C346 87 015 684 080 CAP E 47 16V C348 87 015 695 080 CAP E 1 0 50V C354 87 015 684 080 CAP E 47 16V C358 87 015 695 080 CAP E 1 0 50V C374 87 015 684 080 CAP E 47 16V C376 87 015 681...

Page 9: ...S6 30R BE0 1H0 CONN 8P PMD01 S5 612 34D 000 CONNECTOR CIRC FFC FPC PMK01 S5 618 43D 000 CONN TUC P05P 5P PMK02 S6 724 34B 000 CONN ASSY 5P 150 58 PMK02 S6 724 34M 000 CONN ASSY 10P 150 78 PML01 S6 30R...

Page 10: ...10 TRNSISTOR ILLUSTRATION 1 1 SRA2203 SRC1203 E C B E C B E C B 2SA1980 2SC5343 2SC5344 KSR1003 KTA1268 SRC1201 KTA1273 KTC3205 E C B KTC2804...

Page 11: ...MS501 MODE SW FULL ERASE HEAD CYL HEADS MAIN C B KEY2 C B AUDIO CTR HEADS PMD01 PDM01 PMC01 PCM01 P3D02 MS501 P3D03 1 2 LD LD 1 2 LOADING MOTOR PML01 P3D01 PKM01 PMK01 1 2 3 4 5 6 7 8 9 10 LINE3 VIDEO...

Page 12: ...FR01 C119 L105 NOTES Symbol denotes AC ground Symbol denotes DC chassis ground FROM COM 5 2VG TO System FROM COM PWR CTL H LINE FILTER BLOCK C101 L102 C102 RECTIFIER SMOOTHING D105 C115 36V S W BLOCK...

Page 13: ...KEY 1 C B IIC CLK IIC DATA A ENV LP REC MUTE H A H SW To CYL HEADS To POWER TUNER SECTION To SYSTEM CONTROL SERVO OSD SECTION A MUTE H BUF V IN TU V IN To POWER TUNER SECTION VIDEO OUT MONO A IN AUDIO...

Page 14: ...598M AUDIO VIDEO PROCESSOR IC7V1 LC74793 VPS PDC DECODER Q301 Q302 Q303 Q304 Q304 6 7 16 FROM CYL HEADS To CYL HEADS To SYSTEM CONTROL SERVO OSD SECTION To SYSTEM CONTROL SERVO OSD SECTION SP REC C SY...

Page 15: ...i AUDIO SCART SECTION 76 80 ALC LINE AMP MUTE 96 98 7 6 REC AMP AUTO BIAS CONTROL Q307 99 BIAS OSC 4 1 100 6 5 96 99 DATA REC H CLK MONO A OUT SERIAL DECODER LINE AMP Q308 Q309 Q310 MUTE 24 23 To SYST...

Page 16: ...SECTION To POWER SECTION Audio PLL SCART Switching Facilities Demodulator D A D A D A SCART1 R LOUD SPEAKER L LOUD SPEAKER R SCARTL SCARTR IDENT FM1 AM FM2 NICAM A NICAM B SCART1 L D A A D A D DSP 18...

Page 17: ...VIDEO JK902 AUDIO D JK903 AUDIO G ENTREE AV 3 UPD16311GC AB6 9MT168GK SYSCON SERVO PROCESS MAIN SYSTEM CONTORL SERVO SECTION C B TSOP1238SP1 12 3V MS501 CAT24W16P VFD DRIVER IC501 HD6432197A37FX 12VT...

Page 18: ...ADC M201D ENTREE ANTENNE AERIAL SORTIE ANTENNE RF OUT NOTES Symbol denotes AC ground NOTES Symbol denotes DC chassis ground NOTE Warning NOTE Parts that are shaded are critical NOTE With respect to ri...

Page 19: ...03 2 03 85 0 03 0 03 6 2 46 2 34 26 0 05 0 06 46 1 46 1 44 66 2 66 2 67 86 0 0 7 2 46 2 34 27 0 34 0 34 47 9 13 9 12 67 3 87 3 86 87 4 87 4 80 8 0 0 28 0 34 0 34 48 1 94 1 96 68 0 0 88 1 83 3 97 9 0...

Page 20: ...C mode IC301 Pin 29 2 1Vp p PB mode IC301 Pin 23 5Vp p PB REC modes IC301 Pin 41 400mVp p PB mode IC301 Pin 67 600mVp p PB mode IC301 Pin 24 5Vp p PB REC modes 1 2 3 4 8 7 6 5 9 10 IC301 Pin 71 72 340...

Page 21: ...o SYSTEM CONTROL SERVO OSD SECTION To POWER TUNER SECTION To Hi Fi AUDIO SCART SECTION IIC IIC AUDIO VIDEO PROCESSOR C344 0 01u C373 0 1u 5 1K 7800 7800 7800 5 4 15 14 1 9 10 3 6 2 2 2 7 16 12 12 12 1...

Page 22: ...IE D IC901 MM1443XJ INPUT SELECT SW MAIN Hi Fi AUDIO SCART SECTION C B IIC IIC To POWER TUNER SECTION To AUDIO VIDEO SECTION To SYSTEM CONTROL SERVO OSD SECTION To SYSTEM CONTROL SERVO OSD SECTION To...

Page 23: ...8 3 8 3 9 3 9 3 9 3 9 3 9 3 9 3 8 3 8 3 8 3 8 3 8 3 8 3 8 3 8 3 8 3 8 3 8 3 9 3 8 3 9 0 0 0 0 3 9 3 8 0 0 0 0 0 0 0 0 6 0 6 0 6 0 6 0 0 0 0 0 6 0 6 0 6 0 6 1 4 5 4 6 3 8 3 8 IC901 MM1443 5 1 0 15 30 2...

Page 24: ...VIDEO SECTION To POWER TUNER SECTION To POWER TUNER SECTION To Hi Fi AUDIO SCART SECTION AB6 TSOP1238SP1 R C RECIVER POWER FAIL GDZJ6 2C HD6432197A37FX SYSCON SERVO OSD PROCESS MAIN SYSTEM CONTROL SER...

Page 25: ...LSE 79 0 0 99 H L H L 20 0 0 40 0 0 60 PULSE 80 2 56 2 56 100 0 SP 5 25 LP PIN PB REC 101 0 1 44 102 103 PULSE PULSE 104 PULSE PULSE 105 H L H L H L H L 106 H L H L 107 H L H L 108 H L H L 109 0 0 110...

Page 26: ...n 109 1V 100 S QUE REV modes CTL IC501 Pin 3 1V 10mS CTL IC501 Pin 4 1V 10mS DFG IC501 Pin 104 1V 1mS REC PB mode DPG IC501 Pin 103 1V 10mS REC PB modes V OUT IC501 Pin 19 500mV 20 S EE PB modes CFG I...

Page 27: ...27 FL DISPLAY 1 1 GRID ASSIGNMENT ANODE CONNECTION...

Page 28: ...APSTAN MOTOR PCM01 PML01 To LOADIG MOTOR P3D01 To CYL HEADS C373 L705 C713 7800 7800 JK901 1 2 JK901 2 2 7800 1 2 4 5 1 3 R C5F1 REMOTE SENSOR MODE SW To NICAM A2 C B P7M01 To NICAM A2 C B P7M02 JK901...

Page 29: ...WIRING 2 4 NICAM A2 C B 29 E C B E C B NICAM A2 C B To MAIN C B P7M01 To MAIN C B P7M02 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 A B C D E F G H I J K L M N O P Q R S T U...

Page 30: ...SECTIN KEY 1 C B 5850 7800 7800 To MAIN C B SYSTEM CONTROL SERVO OSD SECTION PMK02 JK901 VIDEO JK902 AUDIO L JK903 AUDIO R ENTREE AV 3 SW904 MARCHE VEILLE SW901 CHAINE SW902 LECTURE D UNC TOUCHE SW903...

Page 31: ...AUDIO L JK903 AUDIO R ENTREE AV 3 LECTURE D UNC TOUCHE SW903 LED902 SW901 SW902 CHAINE SW904 MARCHE VEILLE E C B KEY 1 C B To MAIN C B PMK02 LECTURE D UNC TOUCHE SW903 LED902 SW901 SW902 CHAINE SW904...

Page 32: ...32 SCHEMATIC DIAGRAM 6 6 KEY 2 C B SECTIN SW905 ENR OTR SW907 RETOUR SW906 PAUSE STILL SW908 LECTURE SW910 ARRET SW909 AVANCE SW911 EJECT KEY 2 C B To MAIN C B SYSTEM CONTROL SERVO OSD SECTION PMK01...

Page 33: ...SW907 RETOUR SW906 PAUSE STILL SW908 LECTURE SW910 ARRET SW909 AVANCE SW911 EJECT KEY 2 C B To MAIN C B PMK01 SW905 ENR OTR SW907 RETOUR SW906 PAUSE STILL SW908 LECTURE SW910 ARRET SW909 AVANCE SW911...

Page 34: ...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 2 Connect the CH1 of the oscil...

Page 35: ...UF 0 12dB 0 12dB L OUT1 EXT V 26 24 L OUT2 TUN L 25 10 L OUT3 E1 L 23 8 BUF R OUT1 E2 L 22 6 R OUT2 EXT L 21 20 R OUT3 13 PORT1 15 34 19 PORT2 11 FS GND2 GND1 TUN R 16 E1 R 14 12 E2 R EXT R 7 BIAS 9 M...

Page 36: ...L amp reference PB CTL in REC CTL out PB CTL in REC CTL out CTL amp bias voltage CTL feedback SW control CTL amp output CTL Schmitt amp input CFG input Servo VCC 5V SYNC SEPER C connect SYNC SEPER AFC...

Page 37: ...ot connected Not connected High out at REC mode OTPB H Take up reel pulse in CAP reverse H Tape reader check at top Not connected Not connected Not connected Not connected Micom 5 V VCC Micom GND High...

Page 38: ...O I I I O O O O O I Capstan control at slow Capstan current control Not connected Not connected Not connected Not connected Not connected Not connected Supply reel pulse in High out at SECAM VHF L Hi...

Page 39: ...tor Crystal oscillator Test pin Digital control output 1 Not connected Digital control output 0 Not connected I2 C bus address select Standby low active I2 C clock I2 C data Test pin Digital power sup...

Page 40: ...nc output Ground Charge pump output An LPF is connected Voltage input for VCO control For the connection of resistors for adjusting VCO oscillation range Outputs L when PDC VPS data can be detected Po...

Page 41: ...Pin 4 Is there about 2 5V at the IC103 Vref Is the D106 normal Check the MAIN C B 5 3VA 5 0V Line short Replace the F101 Use the same Fuse Replace the BD101 Replace the R101 Is Vcc about 15 19V permit...

Page 42: ...r YES NO NO 7 Power Circuit SMPS 2 No 12VA Capstan 3 No 12VT CANAL Buffer 1 Check the ZD151 and the Peripheral Circuitry 2 Check the R105 Is Voltage about 14V put into the Q155 Base Check or Replace t...

Page 43: ...8 Does the CFG divide waveform appear at IC501 pin 9 Do the CTL pulses move when TRK is operated Replace IC501 Does the Video Envelope waveform appear at IC501 Pin 24 NO YES YES YES YES YES A Is the...

Page 44: ...Q152 Q151 collector Check whether 5 3VA is out of other Check the com Control YES YES NO NO NO 7 Power Circuit SMPS Hi Fi Only YES YES YES YES YES NO NO NO NO Check F 102 D107 Check the com control Re...

Page 45: ...appear at PMD02 Pin 5 Does 2 8V appear at PMD02 Pin 4 Check Connector and Capstan Motor Ass y Check the Components and foil Patterns Connected between IC501 Pin 108 and PMD02 Pin 4 for shorts Does th...

Page 46: ...m appear at IC501 Pin 107 Check the Components and foil Pattern Connected to IC501 Pin 107 PMD01 Pin 1 for shorts Do DFG Pulses appear at IC501 Pin 104 B NO NO NO NO Check Power Does Drum PWM appear a...

Page 47: ...2 Pin 2 when inserting the CST Check the Deck Mechanism Cassette tape loading is unstable Change IC502 or ZD501 GDZJ 6 2C Check IC501 Pins 68 69 70 71 Check the power Check the CST SW and peripheral c...

Page 48: ...level Check R304 R340 Replace the IC301 Refer to SYSTEM I2 C BUS CHECK Trouble Shooting Is the V H S W signal applied to the IC301 Pin 11 Is V H S W H about 3 4V at the IC301 Pin 11 Clean the Drum Che...

Page 49: ...ke up reel pulses appear at the base of Q514 Replace the Take Up Reel Photocoupler in the Deck RS501 Auto stop Does SW30 waveform appear at IC501 Pin 105 Do Take up reel pulses appear at IC501 Pin 49...

Page 50: ...he Video signal appear at the Emitter terminal of the Q701 Check the 5V Line Power Circuit Is I2 C BUS signal applied to the IC301 Pin 23 24 Check C315 AGC Chck the path of the signal between the IC30...

Page 51: ...ck the line of the 5 2V Line Power Circuit Replace the X301 Check the Color Pass Check the Q304 Replace the IC301 Check the Color Rotary Circuit IC501 pin 99 Check the Color Rotary level Check the R30...

Page 52: ...H the IC501 Pin 47 the D301 Replace the IC301 Check the line of the 5 2V Line Power Circuit Check PB Mode Is the REC H signal about 4V applied to the IC 301 Pin 30 Check the circuit of the IC301 Pin...

Page 53: ...to TU701 Pin 16 Is 5VT applied to TU701 Pin 13 Does the Clock signal appear at TU701 Pin 11 Does the data signal appear at TU701 Pin 12 Replace Tuner Check the signal flow from TU701 Pin 24 to IC301 P...

Page 54: ...the Tuner Audio signal at IC301 Pin 76 Check the Audio signal at IC301 Pin 96 Check 5VT power Chekc the signal flow from TU701 Pin21 to IC301 Pin 76 Replace IC301 NO NO NO YES YES YES Check the signal...

Page 55: ...801 Pins 2 3 Check the Audio of IC801 Pins 16 17 Check the signal flow from IC801 pins 18 19 to JK901 Pins 1 3 Check 5V power Check the Tuner Audio of TU701 Pin 22 Replace X751 Check the IIC Clock and...

Page 56: ...heck Ports of COM Replace IC801 Hi Fi Playback No sound Check the Hi Fi Selection Switch and the Tape quality Is the RF Envelope at IC801 Pin 44 over 2Vp p Check the Signal path of Audio Output Do Aud...

Page 57: ...eck Audio input signal of IC801 Pins 2 3 TU A 6 7 Scart 1 Replace IC801 B Check IC801 Pin 42 Data Pin 43 CLOCK Do Audio signals appear at IC801 Pins 16 17 YES YES YES Do FM Audio signals appear at IC8...

Page 58: ...58 MECHANICAL EXPLODED VIEW 1 1 PWB PWB A00 457 457 457 457 457 457 452 330 260 250 462 300 462 452 320 452 283 284 280 283 284 280 A43 A43 FX7800 Model FX5850 Model PWB 323 275 TU701 JK901...

Page 59: ...00 6R0 DOOR CST CFA929MP MY 78 283 S5 80R V00 1P0 DOOR CST 911MP FX5850EH 58 284 S4 426 81A 000 SPR DOOR 300 S4 10R CHD 01A POWER CORD 320 S7 20R D02 0C0 PANEL DISTRIBUTOR PAL 2SCART 323 S1 11R 008 9B...

Page 60: ...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 B...

Page 61: ...61 MECHANISM EXPLODED VIEW 1 3 101 426 103 117 104 105 100 110 115 116 112 113 114 032 109 108 426 A22 A23 A21 107 106...

Page 62: ...74R 001 9A0 GUIDE CST 105 HOLDER CST 106 HOLDER SIDE R 107 LEVER STOPPER R 108 BRACKET SIDE R 109 OPENER DOOR 110 ARM F L L 112 BODY F L 113 S9 70R 005 6A0 SPRING F L R 114 ARM F L R 115 S9 70R 005 0A...

Page 63: ...63 MECHANISM EXPLODED VIEW 2 3 401 001 023 024 032 406 406 406 028 504 014 012 504 017 013 022 015 401 401 007 006 A03 009 025 026 027 A04 011 031 018 019 021 020 029 003 004 409 016 002 505...

Page 64: ...8R 000 1B0 REEL S 018 S9 70R 005 4A0 SPRING SB 019 S4 21R 000 3A0 BRAKE ASSY 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...

Page 65: ...65 MECHANISM EXPLODED VIEW 3 3 056 057 054 053 426 077 410 032 078 A12 067 066 065 A11 068 069 070 079 426 064 518 052 055 518 517 061 062 060 063 519 051 059 A14 058...

Page 66: ...1 S2 65R 000 3A0 CLUTCH ASSY D33K 062 S4 70R 005 8A0 GEAR UP D33K 063 S9 70R 005 1A0 SPRING UP D 064 S4 70R 003 4A0 GEAR SECTOR 065 LEVER P3 066 S9 70R 004 6A0 SPRING L D 067 GEAR P3 068 GEAR P2 069 S...

Page 67: ...2 3 4 5 Bracket Side L 1 Screw A 2 2 3 4 6 BracketAssembly Door 1 Screw A 2 2 3 4 5 6 7 ArmAssembly F L Chassis Hole A 2 2 3 4 5 8 LeverAssembly S W Chassis Hole A 2 9 ArmAssembly Cleaner Chassis Emb...

Page 68: ...ok the H1 on the back side of the Chassis and separate the Cap FPC 2 Remove three Screws S1 and lift up the Drum Assembly 3 Remove two Screws S2 and Separate the Stator of Drum Motor 4 Remove two Scre...

Page 69: ...ssembly F L Lever Assembly S W Bracket Side L H5 H3 Groove Guide CST Gear Rack F L Groove For Jog Shuttle Models H4 Bracket Assembly Door S4 S4 Arm F L Holder Assembly CST Lever Stopper R Fig A 2 Fig...

Page 70: ...the Guide CST in the direction of the arrow 5 Bracket Side L Fig A 2 4 Bracket Assembly Door Fig A 2 5 1 Remove the Screw S4 and disassemble the Bracket Side L in the front 2 Remove the Screw S4 and d...

Page 71: ...n the clockwise direction and lift up the Arm Assembly 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...

Page 72: ...old the C part shown above Fig A 4 3 and turn to the clockwise direction and then lift up theArmAssemblyTension 1 When reassembling be careful not to change the Spring with above No 11 12 Refer to Fig...

Page 73: ...ossing of the Chassis in the counterclockwise direction and lift up the Base Assembly P4 17 Opener Lid Fig A 5 3 1 Break away the C Part of the Opener Lid from the Embossing of the Chassis in the Cloc...

Page 74: ...1 When reassembling Confirm the A B parts of Motor Capstan is located to the A B of the Chassis 21 Clutch Assembly D33 Y Fig A 6 3 1 Remove the Washer W1 and lift up the Clutch Assembly D33 Y 22 Leve...

Page 75: ...lift up the Bracket Assembly Jog 25 Guide Rack F L Fig A 7 2 Gear Rack F L Fig A 7 3 1 Remove the Screw S4 and lift up the Guide Rack F L 2 Lift up the Gear Rack F L 26 Brake Assembly Capstan Fig A 7...

Page 76: ...t up the Gear Cam 3 Lift up the Gear Connector 1 When reassembling confirm that the Hole A of the Gear Connector is aligned to the Hole A of the Chassis Fig A 8 3 2 When reassembling confirm that the...

Page 77: ...2 Plate Slider Fig A 9 3 Lever Tension Fig A 9 4 1 Remove the Screw S4 and lift up the Base Tension 2 Lift up the Plate Slider 3 Hold the A Part of the Lever Tension and turn to the counterclockwise d...

Page 78: ...4 1 Move the Base Assembly P3 in the direction of the arrow of the Chassis Hole A and push down the Base Assembly P3 2 Move the Base Assembly P2 in the direction of the arrow of the Chassis Hole B an...

Page 79: ...50 0 300 250 200 150 50 0 100 ALIGNMENT TAPES FOR ADJUSTMENT Derivation No Mechanism Adjustment ltems FM Envelope A PAL SP LP 2 4 Head TTV P2L B PAL SP 2 Head TTV P2 C NTSC SP LP EP 2 4 Head TTV N1 T...

Page 80: ...e Alignment is as below Fig C 2 4 Remove the Screw which fixes the Deck Mechanism and Main Frame and confirm if the Gear Cam is aligned with the Gear Drive as below Fig C 1 A 5 Confirm if the Mode S W...

Page 81: ...daptor with the Torque Gauge affixed The Torque reading to measure occurs when the Tape abruptly changes direction from Fast Forward of Rewind Mode when quick bracking is applied to both Reels SRK VID...

Page 82: ...lope CH 2 NTSC SW 30Hz PAL SW 25Hz Head Switching Output Point RF Envelope Output Point Test Conditions VCR VCP State Play an Alignment Tape Adjustment Point Guide Roller Height Adjustment Screws Fig...

Page 83: ...gnal 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 Blank Tape and observe if the Tape passes accurately over...

Page 84: ...y adjust the Azimuth Adjustment Screw A and the Tilt Adjustment Screw C for Maximum Output of the 1Khz and 7Khz segments while maintaining the flattest Envelope differential between the two Frequencie...

Page 85: ...ver Screw Driver Type 5mm Connection Point Test Conditions Mechanism Condition Play the blank tape Play an alignment tape Adjustment Points Guide Roller Precise Adjustment Switching Point Tracking Pre...

Page 86: ...on pinch roller If locations marked with o do not operate normally after cleaning check for wear and replace See the EXPLODED VIEWS at the end of this manual as well as the above illustrations See the...

Page 87: ...ch with Isopropyl Alcohol Touch the cleaning patch to the head tip and gently turn the head rotating cylinder right and left Do not move the cleaning patch vertically Make sure that only the buckskin...

Page 88: ...embly F L U Groove 4 Arm Take up Rubbing Section 5 L D Motor Worm Wheel Part 6 Shaft 7 Arm Assembly F L of Buming Inside Hole 8 Reel S T Shaft G381 Yellow 9 Brake T Groove Guide Rail Gear Assembly Up...

Page 89: ...sensor Check syscon circuit NO YES YES YES NO NO NO 1 Deck Mechanism A NO NO NO No F R modes Is the present mode F R Mode Is the mode SW assembled correctly refer to Pages 80 Is the normal voltage su...

Page 90: ...tions page 80 Check spring Pinch Replace Drum Motor Check Servo Syscon Check the Syscon COM No cassette loading Insert the cassette Check Cassette Carry Assembly Is there variation for F L S W Output...

Page 91: ...ors ok Check Syscon Circuit Check Syscon Circuit Check Servo Syscon Does the Capstan Motor turn Is the terminal voltage of the Drum Motor more than 2 3V Replace the Drum Motor Is the Vcc voltage of th...

Page 92: ...ard 5V YES Is there a short circuit between cassette switch and GND on main P C Board Remove the short circuit part or Replace the main P C Board NO Check Mode switch location and syscon circuit Repla...

Page 93: ...Assembly F L Check the power of L D Motor Is the Holder Assembly Cassette assembled correctly Replace the Rear Rack F L Does the Gear Rack F L work Does the Opener Door work Does the Arm Assembly F L...

Page 94: ...931196 Printed in Singapore 2 11 IKENOHATA 1 CHOME TAITO KU TOKYO 110 8710 JAPAN TEL 03 3827 3111...

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