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Modelo - Chassis 20
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | TFM7720W | COLD SOLDER | No AM on low end. | ||
| Sony | M203 | DEFECTIVE C122 | Newly made recording had low playback volume. LED indicatedexcellent sensitivity during recording but playback was low. Previouslyrecorded tapes were OK. | ||
| Sony | SQA2030 | DEFECTIVE Q701 | Noise in back channel outputs. -HQ COMMENTS: Replaced regulator transistor Q701, 2SC1124. | ||
| Sony | PSX20 | DEFECTIVE IC101 | In play mode turntable operates normally, in stop mode (poweron) turntable rotates backwards. In STOP mode, IC102-2 output goesnegative 2.1V and inverting input remains slightly positive (Pin 6). Theoutput of LOGIC Pin 6 of IC101 remains at +1 volt. G | ||
| Sony | PS20F | REPLACING STYLUS | The stylus of the moving coil cartridge for the PS-20F isreplaceable. The part number is ND206. | ||
| Sony | M200 | SPRING OUT OF LOCATION | Switch SW3 did not move to OFF position when stop buttonengaged. Problem was spring (3-561-626-00) was off at stud end, not slideend. | ||
| Sony | CF520 | MOTOR WILL NOT RUN | R401 opens. Motor will not run. | ||
| Sony | TFM7720W | BREAK IN PCB | Sound is unclear. | ||
| Sony | TFM7720W | BROKEN CONNECTION ON ANTENNA | No A.M. | ||
| Sony | CF520 | R401 OPENS | R401 opens and the motor will not run. | ||
| Philips | 14CN2201 | Dead - correct 100v HT on dummy load | Scan coils - had arced across rubber wedge | ||
| Philips | 10CX1120/05R | power supply working but no line drive. | changed the following T539 / T534 / R537 / R502. LOPT faulty | ||
| Philips | 10CX1120/05 | Raster - distorted & no frame sync. | SKE bridge recy. | ||
| Philips | 10CX1120/05 | Dist raster & no field sync at sw on - clears aft 10 mins | Mains bridge rect int goes o/c | ||
| Philips | 10CX1120/05 | Dead - micro TMS3757ANL-10 | T273 BC557 s/c in AV/RF sw cct also |