Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por:![]() |
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Sony | SLHF500 | NO VIDEO IN PLAYBACK MODE | The unit worked in all functions except PLAY. In PLAY modethere was no video. We found the problem to be caused by Q2 on SS-32 bd.This transistor was open therefore there was no PB 9V. | ||
Sony | FD2A | INT FOCUS, REPLACED FLYBACK | Harlan Mauer of the Mpls. SSC reports FD-2AThe problem is traced to a defective flyback. | ||
Sony | CCDV8AFU | PICTURE SHAKES SIDE TO SIDE ON PLAYBACK | Drum locked but speed is eratic. TF4 osc not present onPin 15 of drum drive IC. | ||
Sony | CCDV8AFU | AUDIO MUTE | No audio. Traced problem to C405, AR-1 bd. DC voltage vary-ing on pin 4 IC101. | ||
Sony | WMF12 | PLAY BUTTON JAMS | Play button does not come out of play position. | ||
Sony | KPR4600 | UNIT DEAD, REPLACED IC-301 | The unit is dead. | ||
Sony | CDP70 | SERVICE MANUAL ERRORS | 1) Q102 collector is shown on the schematic to connect toQ101 emitter. It actually is connected to B- as shown on the boardlayout (the emitters of Q101 and Q102 are tied together). 2) C132polarity is shown reversed on the board layout. | ||
Sony | KV1311CR | PICTURE GOES INTERMITTLY SNOWY, REPAIRED BROKEN ETCH | Intermittently picture would go into snow. By tapping theboard, picture would return. Found the etch broken between resistor R-221and the tuner IF output. | ||
Sony | SL25 | WOW/FLUTTER BETA III | Wow and flutter in BIII. Forward and back tensions were OK.Tension regulator arm was vibrating. By touching it, vibration and wow &flutter would be gone. After 2 or 3 seconds, vibration would begin again. | ||
Sony | SLHF400 | NO PICTURE IN BETA SCAN OR PAUSE | No picture when in Beta scan or pause. Screen showed blackhori bars and what looked like over driven AGC. Adjusted skew osc to 2xhori. Picture came in on Beta scan and pause. After a few min picturewould go bad again and had to be readjusted. | ||
Sony | KPR4110 | IC-301 SCHEMATIC ERROR, NO SB ISSUED | In troubleshooting a blanking (no raster) problem. I foundset does not agree with schematic. Measuring Pin 38 on IC301, I found 9V,and Q408 emitter reading 3V. Traced circuit and found R431 does not con-nect to R428. The 3V on emitter seemed to come | ||
Sony | SL2710 | LOADING & THREADING ARE VERY SLOW | Unit would load and thread very slowly. Found loading motorgetting hot. Also voltage on motor only 7.6VDC. | ||
Sony | KV1365 | MISSING PART NUMBER OF PLASTIC KNOBS | We need the part number for the plastic knobs that activateS011/S012 channel up/down. Is this only avaiable with the bezel? -HQ COMMENTS: The knobs are only available with the bezel. | ||
Sony | TC530 | PART NUMBER MISSING-SUPPLY TABLE | We need the part number for the supply table labeled A49 onPage 29 of the manual. -HQ COMMENTS: Ref # should be A9 rather than A49. P/N is X-3430-015-0.There is stock in KCP. | ||
Sony | CDXR7 | SLED WILL NOT RETURN TO INSIDE OF DISC | Weak focus search. Sled does not reset to inside of disc atturn on. |