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Modelo - Chassis KPR4110
Pesquisa: KPR4110 Enviar Dica Resolvida
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KPR4110 | B+ FLUCTUATES BETWEEN 135V AND 50V, REPLACED IC-8 | The B+ line keeps fluctuating from 135V to 50V continuously.Found 18V line fuse F3 on (E) board open caused by a shorted audio outIC8. Also pertains to serial number 7003297. | ||
| Sony | KPR4110 | NO PICTURE - SOUND OK, SEE SERVICE BULLETIN 310R | Unit had no picture. Sound OK. CP1 thru CP6 open.Both convergence IC's shorted. | ||
| Sony | KPR4110 | NEED P/N FOR SPRING BEHIND CONTROL PANEL, 4-375-439-02 | There is no part # for the black spring behind the controlpanel. It is mounted to the top of the cabinet. -HQ COMMENTS: The catch level part number is 4-375-439-02. | ||
| Sony | KPR4110 | DEAD, REPLACED IC-5001 | Dead set. No 135V, +18V and -18V. Replaced DC-DC converter,won't help. Then applied 50V DC to 135V found 0V at Pin 11 IC5001. DC-DCconverter input should be +143V and -143V. Training manual indicated+295 and -205V. | ||
| Sony | KPR4110 | INTERMITTENT REMOTE OPERATION, REPLACED DEFECTIVE Q-301 | Intermittent. Remote operation OK for one hour, thennothing. | ||
| Sony | KPR4110 | ERRATIC OPERATION AT TURN ON,REPLACED POWER SUPPLY | Turn set on and RGB, Video #3, SAP, AUX ??? comes on with nosound or picture, will turn on by remote but not manually. | ||
| Sony | KPR4110 | RED CONVERGENCE, YOKE WIRES BROKEN OFF | Wires to red and green CRT yokes are pulled off duringshipment because they are routed too tight. | ||
| Sony | KPR4110 | "D" BOARD COMPLETE, A-1340-692-A | KC has boards for later production run, they have sixconnectors going to it. The one that is needed has 8 connectors goingto it. The chassis # is SCC643AA April 1985. Can this board beobtained? -HQ COMMENTS: It has been found that the later productio | ||
| Sony | KPR4110 | UNIT SHUTS DOWN, REPLACED R-217 (E BOARD) | The unit would begin to power up and then immediately shutdown. We discovered that the problem was premature HV shut down. It wasbeing caused by R-217 being the incorrect value. There was a 33Kinstalled. 20K provided correct bias and allowed normal o | ||
| Sony | KPR4110 | INTERMITTENT PICTURE, REPLACED IC-6006 | This unit had intermittent muted video (no raster) whentapping on IC6006 or IC6008. The picture would flash to black. | ||
| Sony | KPR4110 | WHISTLE IN SOUND, UHF CHANNELS ONLY, REPLACED PLL CIRCUIT | Whistle in sound, UHF channels only. This was accompanied bya mild venetian blind effect in the picture. | ||
| Sony | KPR4110 | D-6001 P/N IS INCORRECT, CORRECTED NUMBER IS 8-719-931-05 | Part number for D6001 and D6002 are listed as 8-719-935-05 inservice manual. Research indicates that the correct part number for theabove diodes is 8-719-931-05. -HQ COMMENTS: The part number has been corrected in the Service ManualSupplement. | ||
| Sony | KPR4110 | CP6001 OPEN, REPLACED CP6001 | This unit is used with a Panasonic VCR PV-1770 and when theVCR comes out of the scan mode (review) the unit will go into HV shutdownand sometimes open CP-6001. This is caused by a problem with the VCRchanging the horizontal freq. This unit opened CP-60 | ||
| Sony | KPR4110 | WAVY LINES IN BACKGROUND, REPLACED THE SCREENS | During scenes with a white or light solid background thereappeared wavy lines in the picture. At first the problem appeared to beelectronic in nature. However when removing the back and shining a fairlybright light on the back of the screen it was poss | ||
| Sony | KPR4110 | IC-301 SCHEMATIC ERROR, NO SB ISSUED | In troubleshooting a blanking (no raster) problem. I foundset does not agree with schematic. Measuring Pin 38 on IC301, I found 9V,and Q408 emitter reading 3V. Traced circuit and found R431 does not con-nect to R428. The 3V on emitter seemed to come |