Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por:![]() |
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Sony | D5 | PLAY COMMAND CAUSES AMS TO CYCLE THROUGH TRACKS ON DISC | Complaint was play command causes AMS to cycle through trackson disc till last cut and begin play. Preliminary checks showed B+voltages OK. Discovered that FF pin 68/IC801 measured 0.6VDC all the timeinstead of 5V. Thus MPU was getting FF command all | ||
Sony | SL60 | I0321 RECORDINGS AND NO AUDIO ERASE | Fuzzy recordings and no audio erase. | ||
Sony | SL3030 | TAKE-UP LINK SENSOR OUT OF POSITION | I could load tape manually and then unit would thread tape andoperate normally. Found take-up link (#186 on Page 9L of the manual, P/N3-684-119-01) sensor out of position, which caused unthread end signal notto be sent to micro. -HQ COMMENTS: With new | ||
Sony | SLHFR90 | UNIT WOULD NOT LOAD TAPE | Unit would not load tape. | ||
Sony | BMC220 | INTERMITTENT DEW LIGHT | Intermittent dew light. Customer had brought the unit intoFSC twice before the unit finally failed. | ||
Sony | SL2300 | POWER LIGHT STAYS ON | Pushing of timer record button would cause power light tostay on and the tape would eject. | ||
Sony | CFS3000 | NO SOUND ON BOTH CHANNELS | Output to headphone is okay, but no output to speakers.I found 3 units with the same problem. | ||
Sony | SL2700 | CAPSTAN RUNNING TOO FAST | The capstan was running too fast on this unit. All otherfunctions were OK. We found the FG1 input to the servo IC to be very low.The problem was caused by incorrect bias at the FG amp/IC306 P9, we foundC340 to be leaky. -HQ COMMENTS: We received info. | ||
Sony | SL2700 | CLOGGING VIDEO HEADS | Lately we have been seeing a large number of units comingthrough with dirty video heads. Sometimes the symptom is in the form of aslight vertical jitter. Other times it is a traditional snowy picture.Cleaning resolves the problem for only a short time. | ||
Sony | SL2710 | NO BETA HIFI PLAYBACK | This unit had no Beta Hi-Fi playback. We found Q002 to beopen on the AF-2 board (9V PB switch). Also changed was C002 as itappeared to be somewhat leaky. | ||
Sony | KX2501 | JAIL BARS, REPLACED C1527 | Picture was slightly reduced in brightness and there werenumerous dark vertical bars across the raster, about one inch in width.I suspected some sort of oscillation in the horiz. output circuit,possibly caused by poor capacitor filter action. Scoping TP | ||
Sony | CFS5000 | NO SOUND ON TAPE PLAYBACK | No sound on tape playback. Other functions OK. AMS seems towork. In PLAY (with cassette in) AMS solenoid occasionally kicks. | ||
Sony | WMF8 | BUZZING NOISE | Buzzing noise through head phones in tape mode. | ||
Sony | KV2670R | NO BRIGHTNESS CONTROL, LEAKY D-301 | Unable to adjust brightness. Found ABL clamp diode D301reading 100 ohms both directions (forward and reverse). | ||
Sony | CDP101 | SLED GOES TO ONE END WITH POWER APPLIED | With disc inserted for 2 to 3 seconds, it would eject disc. |