TV Repair: Common Faults and Solutions.
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Results: 87413
Results: 87413
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SONY | TAN88B | Defective c409 | Dead. found signs of overheating around c413 and c423 asusual. also found area around r419 scorched from heat. | ||
| SONY | SRF80W | Poor connection at q502, d501 | Radio would not work on batteries. it would work if placedin case with speakers. power was taken from amplifier unit. | ||
| SONY | PST33 | Magnet out of position | Platter would not turn. magnet fell out of solenoid detectinglever. | ||
| SONY | HMK119 | Warped turntable | Record rubs on frame causing drag. | ||
| SONY | CFS67 | Open r308, motor and function switch | No power in any function. resistor 308 is open, switchfunction is shorted in tape mode and tape motor is at first shorted andthen open. -hq comments: charging current for c305 (1000uf) through the r308 burnsthe r308. we should replace it with other va | ||
| SONY | TR3230 | Defective q1 | No sound output. no sound with tracer at volume control.voltages of emitter to base of q1 were improper. | ||
| SONY | TPSL2 | Typical wow and flutter on this model | Excess speed variations when the unit was used for jogging.units measured about 0.3% to 0.4% wow anf flutter while at rest, and wouldvary between 0.5% and 0.8% while jogging around the test equipment. | ||
| SONY | TCK65 | Defective motor | Customer complained that intermittently, unit would lock up,no functions would work. found that intermittently, capstan motor wouldnot start up when power was applied to the unit. | ||
| SONY | TCD5M | Defective q-901 | Fast forward and rewind are stopped after running a fewseconds. | ||
| SONY | SRF80W | Leads of c606 needed insulation | Intermittent speaker popping on left channel. problem wouldnot arise when using headphones but only when radio installed in poweredspeaker unit. | ||
| SONY | PSX40 | Shorted motor | Very low drive torque, q103 and q104 low outputs. no signalat emitter of q103 and q104 - measure emitter of q103 and q104 to groundreading should be 38Ω. l3 and l4 of motor measure short. | ||
| SONY | PST22 | Motor hum at start-up | At start up of motor for about 1/2 revolution of platter thereis a hum, then a pause, as soon as the motor is up to speed hum stops. | ||
| SONY | ICFC310W | Modification to increase buzzer output | Customer is complaining the buzzer is not loud enough.buzzer becomes loud enough when the sleep switch is on. at that timeq6 collector receives 12v for a louder amplification than the 6 volts itsees when the buzzer is on by itself. what can be done to | ||
| SONY | ICFC15W | Disconnected q9 | Distorted sound in audio section. used signal tracer to findbreak in landing at the collector of q9. | ||
| SONY | ICF7600 | Loose capacitor | Capacitor had pulled away on the tone control board. | ||
| SONY | HMK414 | Eject button out of proper location | When unboxed, eject button pushed inside of unit. no damageto box. | ||
| SONY | HMK414 | Motor fell out of proper location | Cassette motor fell out of tape transport during shipment. | ||
| SONY | CFS55 | Stop lever not properly positioned | No audio when placed in play, but tape is erase, recordnormal. | ||
| SONY | CFS55 | Belt slips off | If the unit comes in with belt off my s/s advises me that oneshould change the belt along with any repair or it will come back as are-repair in a short time. -hq comments: replace the motor pulley when the capstan belt slippedoff the motor pulley in the | ||
| SONY | CFS45 | Pcb mounting screw breaks foil trace | Circuit board mounting screw is tightened too much. cracksbreak b+ path to function switch. |