Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Sony | CCDTRV11 | DEAD (FOUND MAJOR SHORT ON DC-DC CONVERTER MCB BLEW F002) | No Power. Found that a major short on the DD-80 MCB wascausing F002 to blow. | ||
Sony | CCDTRV11 | DEAD (FOUND BATTERY CONTACTS NOT EXTENDING THRU CABINET) | The unit had no power. Found problem to be caused by thebattery contacts which were not extending through the cabinet, whichprevented contact with the battery. | ||
Sony | CCDTRV11 | NO SPEAKER AUDIO (FOUND OPEN L304 ON CF-42 MCB) | Unit had no speaker audio. Headphone and line-out audio wereO.K. Found L304 on the CF-42 MCB was open. This resulted in 2.4 VDCappearing on pin 16 of audio amp IC651, rather than the 4.7 VDC noted onthe schematic. | ||
Sony | CCDTRV11 | DEAD, BUT UNIT DRAWS .25 AMPS CONSANTLY (FOUND X400 BAD) | Unit appeared dead. However, it was constantly drawing .25amps from an external power supply. This current draw was found to becaused by mode control IC303 always outputting the VTR D-D ON signal, butthere was nothing wrong with IC303 itself. Problem |