Sanyo VHR-730, Service Manual

Page 1: ...efer to the separate volume Model No Reference No V95 I Mechanism MM531 433 I PRODUCT SAFETY NOTICE The components designated by a symbol in this schematic diagram designates components whose value are of special significance to product safety Should any component designated by a symbol need to be replaced use only the part designated in the parts List Do not deviate from the resistance wattage an...

Page 2: ...bers When the O button on the remote control unit is pressed during display and clearing the self diagnosis display and mechanism mode display f Display panel 171 n J u _l u I_ L I I J Self Diagnosis number Mechanism mode number Reception channel display Tape counter Seconds display Self Diagnosis Contents No Problem Main Possible Cause Mechanism Operations and State After Occurrence 00 There is n...

Page 3: ...1 REVIEW 2 tact is faulty shifts to the INITIAL mode and the IDLER 3 STILL 4 BRAKE and power goes off to 5 STOP Note For details of mechanism operations corresponding to the mechanism positions of the self diagnosis numbers 08 and 09 above refer to the separate volume on the V95 1mechanism manual These manual reference numbers are shown in the cover Mechanism Mode Display Contents klode No 00 01 0...

Page 4: ...c 4V IC301 Pin 25 or L blinking R3032Markside Rental ee 2 Ov Switching pulse cassette TP183 see Fig CH 1 CH 2 without tabs One video head is clogged 2 l 2 One video head has worn out Some rental cassettes may have extremely low video playback outputs even when both video heads are normal As the average output voltage of the two heads maybe less than 0 5V for some no warning displays will be shown ...

Page 5: ...es Electrical adjustments for the this model can be be removed easily by pushing the tray lock lever in the performed with only the cabinet removed arrow direction to remove the lock as shown in the enlarge When replacing the bottom cover do not tighten the view A and by pushing the lid opener lever in the arrow screws too much Excess tightness may damage direction to remove the lock as shown in t...

Page 6: ...M PF2LNfrA 2 Tray Lock Lever B Cassette Tray Fig 1 1 2 l PF2LN A 3 PWB Assembly T Chassis Fig 1 1 3 6 ...

Page 7: ...in board remote control facing up M PF2LNTA 4 TM 1 CP 1 PWB Assembly Foil side 1 Twminai Rnnrrl Mechanism Main Unit Fig 1 1 4 1 3 INSTALLATION OF THE FRONT PANEL When installing the front panel to the chassis after repaires and adjustments 1 Pressing down the door opener lever of the mechanism Note Opened cassette door position does not install the front main unit panel to the chassis 2 Set the ca...

Page 8: ...1 4 CIRCUIT BOARD LOCATIONS L PF2LN TA MP2N A VHR 730 CP PWB Assembly TB 2 PWB AD 5 PWB TM 1 PWB PWB Assembly ...

Page 9: ...h ready to operate the all operating mode 2 1 SERVO CIRCUIT ADJUSTMENT These adjustments should be done upon completion of the tape transport adjustments If the tape transport adjustments except the tilt adjustment are done after these adjustments follow the procedures again in section 2 1 3 Switching position adj When a cassette tape is loaded auto tracking will be set immediately after starting ...

Page 10: ...pe TP183 SW P VHJ 0009 or VHJ 0023 Adj Location Adj Value VR351 SW P 6 5 H t 0 5 H 1 Play back the alignment tape 2 Set the tracking control position to the center by pressing CHANNEL buttons l and simultaneously 3 Adjust VR351 SW P so that the width of T becomes 6 5 H 0 5 H as shown in Fig 2 1 3 WS SWP T 6 5H tO 5H 0 5H N k Front edge of vertical sync signal f t Rise RF SW PULSE Fig 2 1 3 lo ...

Page 11: ...VP 1 PWB assembly ALIGNMENT TAPE COLOR BAR SIGNAL WPV TCS H Sync Signal Color bar signal waveform VHJ 0008 Fig 2 2 1 WPV TCP lI I l j dgi 75 vu 1Owo White Black Color bar pattern VHJ 0008 on monitor TV Fig 2 2 2 RELAY JIG Connect the flat cable end from the cylinder assembly to the VP 1 PWB assembly using the relay jig to provide simple repairing of the VP 1 PWB assembly as shown in Fig 2 2 3 Furt...

Page 12: ...j Value VR RF AGC S N is best point on the 3 in 1 tuner 1 2 3 4 Connect the monitor TV to the VHF UHF antenna output terminal Connect the VHF or UHF antenna to the VHF UHF antenna input terminal Receive the middle electrical field 70 dBL 90 dB of the VHF or UHF channel and slowly turn the VR RF AGC from the point where snow noise is present to the point where it just disappears from the monitor TV...

Page 13: ...oints TP 182 ENV andTP183 SW P for tape path adjustment are shown in figure below For adjustment refer to the separate volume V95 I Mechanism Manual MM531 433 and V95 II Mechanism Manual MS531 500 TP183 TP182 SW P E V VP 1 PWB Assembly Fig 3 1 13 ...

Page 14: ...EL SUPPLY REEL SUPPLY x Y 080 j 1000 LOCATION PARTS NO 20200 OR 20210 OR OR 20300 OR 20310 20400 20410 20600 20700 30300 30400 30500 30600 30700 30800 30900 31100 31700 31800 40100 40200 40300 50100 50110 50200 50210 5050A 5050B 40200 n 6131681514 6131604193 4120156504 4120215306 4120158900 6131750661 6131716896 4120487505 6131519701 4120454606 6131522749 6131522756 6131603356 6131520295 613151941...

Page 15: ...60 SWITCH MODE S8001 20800 b _ LOCATION PARTStIO oEscmPnoN 10160 4120487505 SPECIAL SCREW 2 6X4 10200 10700 10720 10800 10810 20500 20510 20800 31000 31200 31300 31400 31500 31600 40400 5030A 5030B 5030C 5040A 5040B 5040C 60100 60200 60300 60400 60500 60600 60610 60700 60800 60810 70500 OR 70510 4120468304 6131675926 4120488007 6131658523 4120488007 6131604186 4111091605 6131519039 6131520165 6131...

Page 16: ...O 12ESCRlPT10N CABINET CHASSIS PARTS CH I 4111370007 SCR L TPG BIN 3XI0 CH 2 4110217907 SCR S TPG BIN 4X12 CH 3 6131783812 COMPL PWB VP I VHR 730 ONLY CH 3 6131779464 COMPL PWB VP I VHR 740 ONLY CH 4 4120525108 SPECIAL SCREW 2 6X12 CH 5 4120289406 SPECIAL SCREW CH 6 6131730632 COVER TOP CH 7 6131602885 HOLDER AC INLET CH 8 6131773172 TERMINAL CH 10 6131774070 COMPL PWB CP 1 A VHR 730 ONLY CH 10 61...

Page 17: ...180002 TR 2SC3331 S 4050249907 TR 2SD734 F 4050250200 TR 2SD734 G 4050035609 TR 2SA1 318 S 4050035807 TR 2SA131 8 U 4050035708 TR 2SA1318 T 4050180200 TR 2SC3331 U 4050180101 TR 2SC3331 T 4050180002 TR 2SC3331 S 4050180101 TR 2SC3331 T 4050180200 TR 2SC3331 U 4050180002 TR 2SC3331 S 4050293504 TR DTC144EK VHR 740 ONLY 4050002007 TR DTAI 44EK VHR 740 ONLY 4050293504 TR DTC144EK 4050835209 TR DTC343...

Page 18: ...OCA170N PARTSMl DESCRIPllON L1401 6450038105 INDUCTOR 33U J L1402 6450021497 INDUCTOR 56U J OR 6450038181 INDUCTOR 56U J L1404 6450021442 INDUCTOR 18U J OR 6450037986 INDUCTOR 18U J L2021 6450036934 INDUCTOR IOOU J OR 6450037634 INDUCTOR 1OOU J L3001 6450093791 CORE BEAD L3003 6450093791 CORE BEAD L3301 6450014550 INDUCTOR 10U K OR 6450037900 INDUCTOR 1OU K L3304 6450063886 INDUCTOR l U K OR 64500...

Page 19: ...V ELECT IOUM 16V CERAMIC 0 033U Z 25V CERAMIC 120P J 50V CERAMIC 68P J 50V ELECT 22U M 50V C3501 4030709803 CERAMIC 0 015U K 50V LCCATION PARTS I C3502 4030750706 C3503 4030709803 C3504 4032288207 C3505 4032288207 C3506 4030750706 C3507 4031506500 C3508 4031506500 C3509 4031637907 C3511 4030716504 C3512 4030569704 C3513 4031196701 C3514 4031849805 C3515 4030630206 C3516 4030718102 C3517 4030708806...

Page 20: ...0677402 FUSIBLE RES 3 3 JA l 2W R3004 4010377909 MT GLAZE 1 5K JA l 10W R3008 4010201907 CARBON 4 7K JA l 4W R3009 4010231607 CARBON 820 JA l 4W R3011 4010202805 CARBON 47K JA l 4W LOCATION R3013 R3014 R3015 R3018 R3019 R3023 R3024 R3025 R3026 R3032 R3036 R3037 R3047 R3048 R3049 R3050 R3051 R3056 R3059 R3090 R3091 R3092 R3094 R3095 R31OI R3102 R3103 R3104 R3301 R3302 R3305 R3306 R3309 R3310 R3311 ...

Page 21: ...Al 10W RI802 4010376704 MT GLAZE 1 2KJAl 10W VHR 740 ONLY R1804 4010389001 MT GLAZE 680 JA l 10W R1 806 4010386406 MT GIAZE 4 7K JA l 10W R1807 4010375400 MT GLAZE 1K JA l 10W R1831 4010375004 MT GLAZE 0 000 ZA l 10W R1833 4010375004 MT GLAZE 0 000 ZA l 10W COMPL PWB TM 1 CN711 OR D7101 D7102 D7103 D7104 C7101 S7101 OR OR S7102 OR OR OR OR S7103 OR OR OR OR S7104 OR OR OR 06 OR OR OR OR S7107 OR O...

Page 22: ...HR 740 ONLY 2 2U M 50V VHR 740 ONLY 0 047U K 16V VHR 740 ONLY 1000P J 50V VHR 740 ONLY 1000P J 50V VHR 740 ONLY 2200P K 50V VHR 740 ONLY O OIU Z 50V VHR 740 ONLY 1000P J 50V VHR 740 ONLY 1000P J 50V VHR 740 ONLY 47U M 6 3V VHR 740 ONLY lCOOP K 50V VHR 740 ONLY 3900P K 50V VHR 740 ONLY IOU M 16V VHR 740 ONLY 33P J 50V VHR 740 ONLY LOCATION R2505 R2506 R2507 R2508 R2509 R251O R2511 R2512 R2513 R2514...

Page 23: ...Jul 97 45o NS Print m Japan SANYO Electric Co Ltd Osaka Japan ...