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Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KP5000 | DEAD, BUSHING ON VERT OUTPUT WAS CARBONIZED | Unit cannot be turned on. When the power switch is activated,unit comes on for 2 seconds and goes off. Checked and F6103 was foundopen. 120V line was loaded. When I checked resistance from 120V B+ toground, I read 150 ohms both ways. GA-9 (plug) Pin | ||
| Sony | FX310 | NO AUDIO | No audio - any function. Acts like bad function switchbecause if applied additional pressure on knob volume works - releaseknob - no audio. | ||
| Sony | TPSL2 | DEFECTIVE MOTOR | Tape player would not run. Motor seemed to draw excesscurrent. A check of the motor revealed the FG winding was shorted to themain winding. | ||
| Sony | TPSL2 | WEAK BATTERY SPRING | Customer complaints of wow while tapping the unit (I found 4units with the same problem). | ||
| Sony | TCM280 | MISPRINT IN S/M | On page 23 of TCM-280/280B service manual a part numbermisprint exists. -HQ COMMENTS: The correct part numbers for two diodes are as follows:DM-101 8-745-101-01DM-101A 8-745-101-11The DM-101 substitutes for the DM-101. Thus, in this case, the part | ||
| Sony | TCK96R | CONNECTION ERROR IN MANUAL | The connection point shown for the white wire is incorrect.This should go to the other end of R719. The wiring diagram in themanual supplement #2 is not clear on where this wire connects. Also, theblack jumper wire and R707 to the connecting point of t | ||
| Sony | TCK96R | OPEN D604 | Unit will only go into FWD plays - all other modesnonfunctional. | ||
| 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. |