Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Sony | XR6450 | NO AM/FM RECEPTION | Tuning Problems, after replacing IC601 unit still would notreceive AM or FM. Found Q50 was breaking down and not supplying the tunerpack with the correct tuning voltage. | ||
Sony | XR6450 | UNIT WILL NOT POWER UP | Unit will not power up. Found an open trace between connectorCN900 pin 2 and junction of R650. There is no apparent cause of failure,but most of the time the trace is open, and at the same time capacitorC932 blows out. | ||
Sony | XR6450 | ROTARY MODE SWITCH S901 FAILS, CAUSES DAMAGE TO REEL BRACKET | Mode switch fails prematurely causing reel bracket assy to bedestroyed. When reel bracket is replaced also replace rotary mode switchas well (p/n 1-692-885-11). This will prevent intermittent rotaryswitches from eating the reel bracket assy.This FPR was | ||
Sony | XR6450 | SLOW TAPE SPEED (FOUND MAIN MOTOR M901 DEFECTIVE) | Cassette runs slow. Tried adjusting pontentiometer in motorto no avail. | ||
Sony | XR6450 | UNIT LOADS/UNLOADS TAPE AT RANDOM (CLEANED MODE SWITCH S901) | The unit would load/unload tape at random. | ||
Sony | XR6450 | NO AUDIO (FOUND IC601 DEFECTIVE, LANDS DAMAGED) | Unit had no audio. Found pins 6 and 7 of IC601 were notsoldered, or became unsoldered when IC601 failed. Also, several landswere damaged. | ||
Sony | XR6450 | INTERMITTENT AUDIO FROM LINE OUT, SPEAKER OUT OK | The unit had intermittent audio from the line out connector.The speaker out was OK. | ||
Sony | XR6450 | JAMMED MECHANISM (CAUSED BY DAMAGED GEAR ON REF. 128) | The mechansim was jammed. | ||
Sony | XR6450 | NO AUDIO (FOUND Q311 DEFECTIVE) | The unit had no audio. | ||
Sony | XR6450 | NO DISPLAY, ALL OTHER FUNCTIONS OK (FOUND D571 DEFECTIVE) | The unit had no display. All other functions were normal. | ||
Sony | XR6450 | EATS TAPES (FOUND B-T WASHER REF. 124 WAS MISSING) | The unit eats tapes. | ||
Sony | XR6450 | CAPSTAN MOTOR RUNS CONSTANTLY (FOUND Q403 DEFECTIVE) | The capstan motor in the tape mechanism runs constantly. | ||
Sony | XR6450 | POP NOISE WHEN UNIT TURNED ON (FOUND Q230 DEFECTIVE) | There was a pop noise heard from the speakers when the unitwas turned on. | ||
Sony | XR6450 | NO AUDIO (FOUND ELECTRONIC VOLUME CONTROL IC301 DEFECTIVE) | The unit had no audio. | ||
Sony | XR6450 | TAPE AUDIO POOR; NO AMS (FOUND DEBRIS IN TAPE HOLDER) | The tape audio was poor, and the AMS feature did not work. |