| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | SLV720HF | WON'T ACCEPT CASS ONLY 1/2 WAY IN | When trying to insert cass only goes in 1/2 way most of thetime. -SOLUTION : Found cass holder latch locked on upper plate, Too longdue to lack of lubrication put some mono grease on both lock pin surfacesit worked fine. | ||
| Sony | SLV720 | PICTURE WHITE NOISY BAR | Picture noisy fade in/out with audio. Due to lack of capstanfeedback servo found C412 capacitor has cold solder. | ||
| Sony | SLV701HF | NO PB, FF, REW | No tape transport operation, except loading. When userpresses PLAY, the tape ejects. The drum motor overspeeds, but drum PG andFG are there, though at the wrong frequency. | ||
| Sony | SLV700HF | NO FUNCTION AND TRACKING FLASHES | One lead cold soldered causing no functions, intermittentno loading and Auto tracking light flashes. | ||
| Sony | SLV700 | POWER SUPPLY PROBLEMS | This power supply is on national backorder but isn'tdifficult to troubleshoot. the section in location F thru I 3 thru 7 isthe voltage regulation section. The regulation problems I find most isQ102 shorted. If the unit doesn't oscillate, usually D106 | ||
| Sony | SLV686HF | WRONT PT NUMBER FOR ROTARY SWITCH | Part number for rotary cam sw is wrong. Has flat connectorinstead of pins. | ||
| Sony | SLV585HF | STATIOINS ERASING OVERNIGHT, RESET EACH DAY | Stations erasing overnight have to reset each day for a week. | ||
| Sony | SLV420 | NO CAPSTAN SERVO ON SLV420 | No capstan servo lock, picture has noise bars and audiodistorted. Problem found at training session in Boston, undersupervision of D. Russo. | ||
| Sony | SLHF860D | NO TUNER OPERATION | Tuner locked up can't change channel no channel display. Found that a defective S001 was holding the input select pin (IC301-2) inthe line position. | ||
| Sony | KV9PT40 | NEW IMPROVED KITCHEN BRACKET HOLDER ASS'S AVAILABLE | New improved holding bracket is available. HQ COMMENTS: See correction 1 Bracket Holder Ass'y 9-908-850-01 | ||
| Sony | KV32XBR96S | DEAD SET,IMMEDIATE SHUTDOWN,REPLACED R623,VDR602,AND IC1401 | Set came in dead. Found R623 open and VDR602 hadapproximately 200 ohms. After replacing these componets, theyimmediately started to overheat.SOLUTION: IC1401 was found to be shorted. It was groundingthe audio B+. | ||
| Sony | KV32XBR37 | FLYBACK PART NUMBER INCORRECT, CORRECT P/N 1-453-146-11 | The part number for the Flyback on page 87 of the S/M is incorrect. -HQ COMMENTS: Please refer to Service Manual correction -1. Incorrect Correct 1-453-416-11 1-453-146-11 | ||
| Sony | KV32XBR37 | DEAD, VERT SHRUNK FROM BOTTOM AND HOR LINES, REPAIRED FOIL | First, hor circuit wouldn't start and temporary jumper wasinstalled to complete open grounds. Then vert deflection was aobut 2short at bottom and fine black hor lines spaced about 1/2' covered raster.Found open foil on board at CN116 pin 11, this pin ca | ||
| Sony | KV32XBR37 | NO PICTURE, RESOLDERED R458 ON UA BOARD | Display was present but picture was missing. Serial data wasabsent from IC402/Pin 20, on the UA board. The DC voltage therewas only 2V instead of the expected 5V. | ||
| Sony | KV32TW78 | NEW CRT, "C" BOARD AND YOKE, SEE SB 201 & SUPPLEMENT -1 | New type of CRT being used. It no longer requires the Hor.Stat control, also circuit change made to Heater circuit. Yoke P/N hasalso been changed. HQ COMMENTS: Please refer to Service Bulletin number 201 andService Manual Supplement-1. |