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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV2775R | VOLTAGE OF THE ANODE SIDE OF D606, ABOUT -100V | The anode side of D606 is marked -100V on the circuit board.The schematic is marked -33V. You read -100V. Which is correct? -HQ COMMENTS: No. 5 pin of A-10 connector on A board is approx. -100Vactually. This voltage is reduced to -33V by R604 (4.7k O | ||
| Sony | BMC220 | POOR VIDEO | When tape is played back, symptom is heads are dirty, or onehead is missing. Found on recording, flexing the board by CN002 I couldmake A head come and go. | ||
| Sony | SLHF550 | DANCING CHROMA NOISE | Dancing chroma noise approx. 1 1/2 from bottom of screenon 27 monitor, problem only shows up on high grade tapes and is muchmore prevalent running to a video input. -HQ COMMENTS: The chroma noise is due to interference from the CTL headto the video trac | ||
| Sony | BMC110 | NO PICTURE | Found DC voltage at G1 (CN505, Pin 1, VC-1 bd) about 65VDC(normally -11VDC). VC-1 board check out OK in another unit. | ||
| Sony | CCDG5 | INTERMITTENT NO PICTURE | Tapping IC6 (ROM), CD board, casued problem to occur. | ||
| Sony | CCDV8AFU | PICTURE DISTORTION DURING PLAYBACK | 1) Capstan servo would not lock during playback. ATF errorvoltage (IC106, Pin 25, VI-6 bd) at 4VDC. No output at IC106, Pins 11 &12. 2) Capstan also stopped intermittently during playback. Pin 8 ofCN511, SV-13 bd, not fully extended. | ||
| Sony | CCDV8AFU | TAPE INTERMITTENTLY EJECTS WHILE THREADED WHEN PB IS ENTERED | 1) Tape intermittently ejects while threaded when PB button ispushed (causing tape damage). 1) Intermittent capstan rotation during PB. | ||
| Sony | CCDV8AFU | CASSETTE DOOR WON | Locked mechanism using mode selector jig. During loading unitwould intermittently thread fully, then unthread slightly causing pinchroller to repeatedly engage and disengage. | ||
| Sony | CCDV8AFU | UNIT SHUTS DOWN AFTER CAM POWER IS TURNED ON | When cam power only or cam + VTR power is turned on, unitshuts down after a few seconds of playback or recording. Playback offunction tape indicated no drum lock. Self recorded tape appeared locked. | ||
| Sony | CCDV8AFU | INTERMITTENT NO POWER ON | Sys. 5V was present, but mode control CPU, IC601, SK-7 bd,would not issue VTR on signal (Pin 19). | ||
| Sony | FD2A | DEAD, REPLACED Q602, IC601, T601 | Unit was dead. Replacing Q602 and IC601 restored raster, butsound and picture were weak. | ||
| Sony | CFSW400 | NO AUDIO IN TAPE MODE | No audio in tape mode. | ||
| Sony | CDXR7 | NO DISC EJECT | During disc eject - disc jammes against the edge of the doorand reloads. | ||
| Sony | SL20 | SUB PART FOR IC201 | S/M lists IC201 as M54543L (8-759-600-24). The IC that isinstalled in the four units I have inspected is LB1640 (8-759-801-60).The LB1640 IC is a 10 pin IC, and the M54543L is a 9 pin IC. Are theseIC -HQ COMMENTS: Either one may be used. When using t | ||
| Sony | XR747R | PART NO PROBLEM IN MANUAL | Above part number not in system. Looking at fiche I foundpart number A-3217-255-A as correct number for filter assy in XR-747R. -HQ COMMENTS: The number from the microfiche is correct (A-3217-255-A).A service bulletin will be issued. |