Dicas Reparação SONY
Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | WM8 | HEAD REPLACEMENT | Above head replaced with P/N 8-829-373-40. Difference inphysical size prevents head chassis from returning to STOP position. Itis difficult to load cassette or eject it. -HQ COMMENTS: A service bulletin was issued concerning this problem(Tape Recorder | ||
| Sony | KV8100 | PART FAILURES | End user reports all of their units have had this capfail at least once. Sometimes, the other parts in the centering circuithave failed also. -HQ COMMENTS: To lessen the overcurrent stress on C519/2.2uF/160V, plsuse two 1uF/200V (P/N 1-130-157-00) capa | ||
| Sony | FD2A | CX20159 DEAD | Unit came in with dead CX20159. Tech replaced it and thiscauses Q602 and associated components to burn up. -HQ COMMENTS: Since IC601, Q602 are part of power supply circuit weshould first check its most suspect components before turning power on.Next, | ||
| Sony | KV1952RS | INTERMITTENTLY SET WOULD COME ON, REPLACE X2001 | Intermittently set would come on at full volume, and have nocontrol of volume, picture, channel change, and no indicator. Sometimesthere would be no sound or control of functions. Found X2001 intermittingcausing the microprocessor IC2001 to lock-up. | ||
| Sony | KX2501 | NO VIDEO, REPLACED Q1903 | Set powers up with H.V. and audio. No video. Q1901 gets veryhot, B+115V. Measure resistance L1505 on D board to GND, found short.Q1903 shorted. | ||
| Sony | XR780 | PART NO FOR SPRING 428 | Need P/N for spring #428, other part has #428 also, needspring only. -HQ COMMENTS: The P/N is 3-596-509-01 which is Ref. No. 427. | ||
| Sony | CFS77 | MISSING PART REF AND ILLUSTRATION | Received this unit with transport apart and parts missing.See page 38 of S/M. Need P/N of spring that pulls head deck down or onesuitable spring. -HQ COMMENTS: Ref # is 409 and P/N is 3-579-027-00. | ||
| Sony | SL2415 | LOSS OF PICTURE IN CUE/REVIEW UNDER VIBRATION | Unit had intermittent loss of picture in cue and review modes.While troubleshooting unit, I noticed that by tapping on DL-1, the pixwould come and go. | ||
| Sony | KV2084R | NO PICTURE, CRACKED BOARD | Unit would turn on, Hi V would come up, but no pix, blackscreen. Push button controls inoperative. No signal on key scan lines.Sleep light on. | ||
| Sony | KV2680R | NO VIDEO, HI VOLTAGE OK, RESEATED CONNECTOR A21 | Power would come on, sound OK, no raster, no control offunctions. Traced problem to IC031 on X board, no 4 meg clock on Pin 16.Servicer had replaced crystal and chip. No AC Ref signal on Pin 16 of Xboard, traced signal to A21, Pin 1 on A board. Signal | ||
| Sony | KV2781R | SHUT DOWN, RESOLDER HLC L-515 | Upon turning set on, the unit would immediately shut downsubbing ref voltage and sensing voltage to Pins 4 and 12 on IC301, setwould still shut down. Froze different section of A board. When HLCgoes as frozen set would stay on. Upon unsoldering HLC, f | ||
| Sony | SLHF400 | AUDIO NOISE IN BETA HIFI | Checked S/N at 400Hz, was -68dB. Checked distortion at 400Hz,1kHz, 5kHz and 10kHz all read less than 2 1/2%. But a buzzing noise isheard also sounds like pumping. Buzz can be heard on movie Blue Thunderwhen he sets his watch. Also noticed buzzing on | ||
| Sony | MDRE248 | NEED P/N FOR EARPHONE CORD ONLY | Need part number for earphone cord only. -HQ COMMENTS: In order to get the cord you must order P/N X-2386-407-1which is connector item #3 in service manual. | ||
| Sony | XR66 | NO AM | The unit had intermittent AM operation. We found the 8V bussto the tuner to be loading down. The problem was caused by a defectiveC516/47uF @ 10V. | ||
| Sony | SLHF400 | NO AUDIO | No sound. |