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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyTCK96ROPEN D604 Unit will only go into FWD plays - all other modesnonfunctional.
SonyTCK71ALIGNMENT OF TAPE PATH Found back tension 3.5 gcm and tape path high at pinch rollerand low at head, causing tape wrinkle.
SonyTCK61MISSING 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.
SonyTAN88BDEFECTIVE C409 Dead. Found signs of overheating around C413 and C423 asusual. Also found area around R419 scorched from heat.
SonySRF80WPOOR CONNECTION AT Q502, D501 Radio would not work on batteries. It would work if placedin case with speakers. Power was taken from amplifier unit.
SonyPST33MAGNET OUT OF POSITION Platter would not turn. Magnet fell out of solenoid detectinglever.
SonyHMK119WARPED TURNTABLE Record rubs on frame causing drag.
SonyCFS67OPEN 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
SonyTR3230DEFECTIVE Q1 No sound output. No sound with tracer at volume control.Voltages of emitter to base of Q1 were improper.
SonyTPSL2TYPICAL 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.
SonyTCK65DEFECTIVE 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.
SonyTCD5MDEFECTIVE Q-901 Fast forward and rewind are stopped after running a fewseconds.
SonySRF80WLEADS OF C606 NEEDED INSULATION Intermittent speaker popping on left channel. Problem wouldnot arise when using headphones but only when radio installed in poweredspeaker unit.
SonyPSX40SHORTED 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.
SonyPST22MOTOR 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.




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