| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| 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. | ||
| Sony | BMC550 | INCORRECT P/N PAGE 148 | Typo in manual, Page 148. -HQ COMMENTS: Correct P/N SK-3 board (complete) A-7060-078-A DS-10 board (complete) A-7060-098-A DS-10 board part number is correct on Page 175 in the S/M. | ||
| Sony | KV2602 | ONLY TUNES LOW CHANNELS, REPLACED NON SONY Q008 | VC voltage at tuner would only go up to 10VDC. | ||
| Sony | TCFX505R | CONTROLLER CHIPS DIFFERENCE | When ordering IC501 and IC505, TC #9310N-032 (8-759-201-86)and TC #9310N-033 are sent instead of -021 and -022. The serial # showsthe unit falling into the former type but ICAlso fiche crosses to the new numbers. Are the two compatible? -HQ COMMENTS: | ||
| Sony | KV2680R | AUDIO EXISTS AT VOL ZERO, REPLACE IC-1107 | When the audio level is turned all the way down, you canstill hear audio. | ||
| Sony | BMC550 | REPLACEMENT NUMBERS FOR CR2025 BATTERY | Since we do not have sample CR2025 battery, can you advise theDuracell or Eveready replacement numbers? -HQ COMMENTS: The numbers are as follows: SANYO CR2025 DURACELL DL2025 | ||
| Sony | KV1515 | NO HIGH VOLTAGE | No high voltage, +115V up to +142V. Half of the dialindicators light at the same time. Sometimes the TV would work normal. | ||
| Sony | KP5040 | CABLE INTERFERENCE, SOLDERED TUNER, PRESCALER AND ANT SW | Fine diagonal lines on Ch. 4 spaced about one inch apart. | ||
| Sony | ICF200W | REF #503 AND 504 REVERSED | Ref. # 503 and 504 reversed. Should be + board A P/N 1-605-271-00 - board B P/N 1-605-270-00 -HQ COMMENTS: We will issue a T/N and S/B. | ||
| Sony | TAAX44 | MISSING P/N | Page 27 of the service manual, location 2-A. Per KC, thepart number should be X-4882-013-1. This part number is not given in theservice manual. -HQ COMMENTS: The part number is correct. Will issue a T/N and S/B. | ||
| Sony | TAAX44 | MISSING PART NUMBER | No part number in service manual nor in semiconductor book.You issued HiFi Bulletin #166 (July, 1983). -HQ COMMENTS: The part number is 8-759-100-43 as in the HiFi Bulletin#164 issued in March 1983. The MPU w/-200 has been changed to -213. | ||
| Sony | XM100 | NO AUDIO OUTPUT | No sound. Found power amp transistors Q411 in left channeland Q512 in right channel shorted E to C. After replacing transistorsstill had no audio out. Further checks showed +3V on both E and C of Q302(remote switch). Found R305, 100 kohm res. open. | ||
| Sony | KV1922 | CRESCENT MOON EFFECT | When set was first turned on, you have a full picture. Witha crescent effect on the left side of the picture, it was about 12 incheshigh. After approx. 1 min., this dark area would fade and then thepicture went into a christmas tree effect with about 4 | ||
| Sony | M400B | INTERMITTENT TAPE SPEED | The tape speed would intermittently go way too fast in play,and fast forward and rewind. Pressing on the case behind the speakerwould cause problem to come and go. Found the leads of Q2 bent in such away that they would contact the chassis, thereby shu |