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Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | STRVX550 | INTERMITTENT OUTPUT | Audio cuts off intermittently. SP relay kicks off. | ||
| Sony | KV1356R | INTERMITTENT SHUT-DOWN, REAJUSTED HOLD DOWN CIRCUIR (R-541) | Unit shuts off on ch. 22. | ||
| Sony | KV2670R | IMPROPER BRIGHTNESS, R-526 AND D-508 | Brightness and screen controls did not work. | ||
| Sony | STRVX750 | AUDIO CUTS OUT | After unit warms up, SP relay kicks off. | ||
| Sony | KV2681R | DEAD, REPLACE T-501 AND Q-504 | Unit was dead due to one leg of T501 was shorted to groundwhich in turn took out the H. output transistor. | ||
| Sony | KV2680R | RASTER BUT NO AUDIO/VIDEO, IC1109 SHORTED ON "X" BOARD | Unit had raster out, no video nor audio, and R1247 wouldshort out at turn on. | ||
| Sony | KV25XBR | MARGINAL FAILURE OF IC651 REGULATOR MODULE | Dark pix (customer complained of no video, however video isdiscernable when pix contrast is maximum), 90% raster (horizontal width),audio OK. | ||
| Sony | PSLX510 | INCORRECT ASS'Y NUMBER | Could not locate part number for stator assy. Found on page27 the assembly is numbered 129. It should be 126. -HQ COMMENTS: Will issue a T/N and S/B. | ||
| Sony | XRM10 | VERY LOW, YET UNDISTORTED AM BAND AUDIO LEVEL | Audio OK coming out of AM IC, but would not pass thru C-60 onAM PC board. | ||
| Sony | CFSF11 | NO RECORD | Pause is engaged before record. Indicator lights but recordlinkage is not engaged. The record trigger lever is jarred off recordlever A (see P.10 of the supplement #1). -HQ COMMENTS: Replacement of forward lever is necessary. The problemcomes from th | ||
| Sony | SL25 | NO P/B OR F/F FUNCTIONS | No F/F mode at all. Would enter rewind mode whenever the P/Bmode was entered. The sensor leads resistance would change from 4 ohms to20 ohms whenever the leads or the PC bd of the sensor was agitated. | ||
| Sony | KX2501A | ALL BLUE RASTER, RETRACE LINES, VERY LOW VIDEO LEVEL, Q1302 | CRT raster was all blue with faint retrace lines and very lowvideo level. We were unable to reduce the blue level with CRT or bright-ness controls. DC voltage checks allowed me to trace problem to a leakytransistor, Q1302 on BD board. | ||
| Sony | KP4600B | NO GREEN VERTICAL SWEEP | With set on, there was no green and display bar (which wasblack), rolling vertically. System looks like a problem in the picturetube area, but found no green vertical sweep. With loss of verticalsweep, there is no horizontal line, because itclue was th | ||
| Sony | SLHF300 | NO POWER | Unit would not power up. Replaced IC301 (timer) but IC wouldnot reset, so problem was not resolved. | ||
| Sony | D5 | BLOWN TRANSISTORS AND IC (SLED CIRCUIT) | Unit was brought in for service due to defective sled motorgears. Upon inspection, we discovered that IC508 and Q502-505 were burntseverely. The chip transistors disintegrated. IC508 is cracked and brownin color. |