Dicas Reparação SONY
Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV1952RX | P/N NOT IN S/M, M BLOCK HOLDER, P/N 4-359-114-01 | Part not listed. -HQ COMMENTS: The part # for the M block holder is 4-359-114-01, butit is not stocked in KC. It can be had on special order from Japan. | ||
| Sony | WMF75 | LOOSE SCREW ON MAIN PCB | Whenever this screw becomes the slightes bit loose unit willhum on tape. This can happen in a very short time. -HQ COMMENTS: In order to prevent the screw from becoming loose, use alockwasher between the screw and the board as shown. | ||
| Sony | KV25XBR | NO VIDEO | No video, all other functions OK. Video present at input ofIC301, but no video at output. Pin 35, IC301 had 2.7VDC causing blanking,this voltage was caused by shorted EVP transistor Q1504 and open zenerdiode D1505. | ||
| Sony | EVS700U | MISSING PART NUMBER (RUBBER FEET) | No part number listed for the rubber feet in this model. -HQ COMMENTS: Part number is given on page 150, Ref. #107, P/N3-670-155-11. There is currently stock in KC, so you should have nofurther problems. | ||
| Sony | SL2000 | NO PLAY OR RECORD, SHUTS DOWN | Brake solenoid would energize or turn on. Solenoid and Q602got hot. Base of Q602=12, C=5.5V. Q602 is a PNP transistor. The CBleakage kept it on. Q604 was open. | ||
| Sony | XR70 | INTERMITTENT DISPLAY | Display int. especially when first turned on. Radio freq.display would blink in and out with the clock display. FM LED would bevery dim then with time become gradually brighter. Radio display wouldstabilize and radio come on. Found irregular low outp | ||
| Sony | CDX5 | WOULD NOT LOAD DISC | This unit would not load disc. Due to operating pressures theE ring wore out the groove in the shaft for the locking E ring. The lock-ing ring groove is completely worn out. | ||
| Sony | KV25XBR | MUTED RASTER AND SOUND. | IC1501 was shorted and R1552 was open. This was a very dif-ficult problem to troubleshoot because there was no raster at all and thesound was muted. The RGB and sleep LEDs were also lit. With all thesesymptoms you could be led to the system control ci | ||
| Sony | SL2710 | W&F AND POOR CAPSTAN LOCKUP | Capstan wow and flutter, with transition from CUE and PAUSE toplay not smooth. Capstan would speed up and slow down several timesbefore locking. On SL-2710 #11456 it was noticed that C29 and R110 wereremoved from the SS-19 bd. sometime after production | ||
| Sony | CCDV8 | S/M CORRECTION (Q716, CP9 BOARD) | Wrong P/N in S/M, Page 159. 8-729-122-23 is incorrect.8-729-122-63 is correct. -HQ COMMENTS: The CCD-V8AFU S/M (Page 162) incorrectly lists Q716 as8-729-126-23. As with the CCD-V8, the correct P/N is 8-729-122-63. Wewill issue a S/B shortly. | ||
| Sony | WMF15 | NO AUDIO OUTPUT | No audio output. Measured DC voltage at Pin 13 IC303 was 0.8Vinstead 2.95V. Found Q302 defective (open base and emitter). | ||
| Sony | D7S | NO PLAY | Unit will not play. Found FOP would slide along shafts.Opening bottom cover found above part broken. Sample is being forwardedfor your inspection. | ||
| Sony | CDX5 | BROKEN DOOR | Found Ref. No. 232 missing and Ref. No. 227 (Pg 49 right doorretainer) inside machine. Door retainer was loose and jamming loadingoperation. | ||
| Sony | STRAV560 | POOR AM/FM SENSITIVITY | Unit had poor sensitivity on both AM & FM. CPU would lock upon some of the functions. | ||
| Sony | D5 | SLED DOES NOT RETURN | When stop button is pressed power turns off, but sled does notreturn to its rest position. |