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Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | TCK71 | ALIGNMENT OF TAPE PATH | Found back tension 3.5 gcm and tape path high at pinch rollerand low at head, causing tape wrinkle. | ||
| Sony | TCK61 | MISSING 2.5MM STEEL BALLS | The head deck assy will not move fully into the cassette. Inthe case of the TC-K81, the assy jammed in the cassette case, chippingthe erase head. | ||
| 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 38 ohms. 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 |