Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Sony | KV27XBR10 | NO VERTICAL DRIVE FROM IC301/PIN 31, REPLACED D253 AND D252 | Missing vertical drive from IC301/pin 31, on the A Board. | ||
Sony | KV27XBR10 | Q-503 FAILURE, RESOLDER T-501, IC-601, IC-901, AND T-500 | High failure rate of Q-503 attributed to bad solderconnections on T-501, IC-582, IC-601, IC-901 and T-500. Must resolder allof above or Q-503 will fail again. This applies to all ANU-1 sets. -HQ COMMENTS: T-501 H Drive, IC-582 3v reg, IC-601 Stand By | ||
Sony | KV27XBR10 | INTERMITTENT OR NO PICTURE, REPLACE CP-103 | Intermittent or no picture. Traced problem to CP-103 and pinwas broken. | ||
Sony | KV27XBR10 | RASTER BLANKED, REPLACED Q-716, AND R-744 ("C" BOARD) | No RGB outputs. Confirmed picture was muted. CheckedV-blanking pulse from IC-301 traced to Q-716 on C board. Also noticedR-744 was blown. | ||
Sony | KV27XBR10 | NO PICTURE, MICRO LOCKED UP, REPLACED DIODE CP111 ON PIN 36 | No picture only snow. IC-101 on the A Board is locked up. | ||
Sony | KV27XBR10 | WON'T MEMORIZE CHANNEL CAPTIONS, REPLACED IC-1301 | Set will not memorize channel captions. Traced problem to de-fective IC-1301. | ||
Sony | KV27XBR10 | PINCUSHION, REPLACED Q-505 ALSO SEE FLASH # 55 | Severe pincushion problem. Q-505 and Q-504 had been changed.Waveform from IC-531/pin 1 was good. Signal at emitter of Q-504was correct but became distorted at the base of Q-505. All components inthis area checked ok. | ||
Sony | KV27XBR10 | HORIZONTAL CENTERING: SERVICE MANUAL PROCEDURE, SEE SB # 102 | The Horizontal Centering adjustment on page 30 of the servicemanual, omits the fact that a Horizontal Centering tap exists as shown onpage 36, the F board. If the remote commander adjustment is made withthe tap in the wrong place, some sets will exhibit | ||
Sony | KV27XBR10 | ANODE CONNECTOR MISSING, P/N 1-540-006-32 SEE SB 108 | When replacing the A board, the anode wire from the flybackis missing. Is there a part number for it? -HQ COMMENTS: Please order part number 1-540-006-32 which is the AnodeCable. Future Boards will have the cable with the board. Service Bulletinnumber | ||
Sony | KV27XBR10 | NO SOUND, NO VIDEO, NO REMOTE FUNCTIONS, REPLACED IC-301 | Receiver had no sound, no video, no remote functions and hi-voltage ok. I found no pulses on data and clock line between associatedICs. Also, no vertical pulse on pin 29 of IC-301. | ||
Sony | KV27XBR10 | NO CAPTION MEMORY, REPLACED IC-1301 | Unit would not remember captions. Dealer stock unit at inde-pendent servicer. IC-101, 102, 107, 103 changed - no help. Changed Aboard. Did not fix problem. This unit was down a long time. | ||
Sony | KV27XBR10 | SET IN-OPERATIVE | High voltage, no audio and no picture. Found no verticaldrive out of pin 31 of IC-301. Also found vertical osc running at pin 29(vertical pulse to IC-101). The vertical drive circuit was muted insideIC-301. | ||
Sony | KV27XBR10 | DEAD, SHORTED HOR. OUTPUT Q-503, SEE SERVICE BULLETIN 161R1 | Q-503 was shorted. | ||
Sony | KV27XBR10 | NO AUDIO | Audio is stuck on SAP mode only. There is no audio on mainor both modes. | ||
Sony | KV27XBR10 | SET GOES INTO OVP INTERMITTENTLY AT TURN ON, REPLACED Q-651 | Set goes into OVP intermittently at turn on (every 4 out of 5times). When unit works, all voltages are correct. |