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Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | XR3320 | NO POWER (FOUND 4 OPENED TRACES ON MAIN BOARD) | The unit had no power. Found 4 open traces. 1. Between D933 and JW54 just above R13 2. Between Pin 20 of IC101 and JR21 3. Between JR21 of JW69 4. Between JW97 and JW21 just above JW31 **See attached diagram. -HQ COMMENTS: Thanks for send | ||
| Sony | XR150 | NO AUDIO OUTPUT FROM SPEAKERS (REPLACE IC801) | Unit had audio out of preamp outputs, but no speaker outputs.IC801 had signal in but nothing out. | ||
| Sony | XR150 | TEL MUTE COMES ON BY ITSELF (FOUND D802 SHORTED) | The TEL MUTE comes on when FM/AM is pressed. Found an opentrace between Pin #10 of CNP902 and D802. | ||
| Sony | XR150 | NO MOTOR DRIVE/NO TAPE PLAY (FOUND AN OPEN TRACE) | When tape was inserted in the deck, the motor had no power.Found a burned open trace between the emitter of Q403 and Pin 7 of IC035,just above C415. | ||
| Sony | XR130 | NO AUDIO OUT FROM SPEAKERS (REPLACED IC801) | Unit had audio out of preamp outputs, but not from speakeroutputs. IC801 had signal in but not out. Some units had discolorationaround the solder joints, but had not yet damaged the board. | ||
| Sony | XR130 | NO POWER (FOUND IC305 DEFECTIVE) | Unit had no power IC305 had only 1.7v on pin 4 and solder wasdiscolored around pins. | ||
| Sony | XM5540F | BLOWS FUSES (FOUND D914 SHORTED) | Unit keeps blowing fuses. Found D914 shorted. | ||
| Sony | XM4040 | UNIT ALWAYS IN PROTECT (FOUND ONE LEAD OF THP952 UNSOLDERED) | The protector light was constantly on. Checked amplifier PCB,found one led of THP952 thermistor broken inside the sleeve. | ||
| Sony | XM3040 | INTERMITTENTLY IN PROTECT (CLEANED ELECTROLYTE OFF MAIN MCB) | Unit would intermittently go into protect mode without anyinput or output connections. Found C507 leaked electrolyte onto PCB andcaused Q505 to bias on. | ||
| Sony | EXR14 | NO AUDIO/DISPLAY (FOUND D705 SHORTED) | When turned on, unit had no display and would have audio forabout 3 seconds only. Found D705 shorted, keeping VDD from IC701. | ||
| Sony | EXR10 | NO POWER TO TAPE DECK (FOUND R361 AND R362 DEFECTIVE) | The motor had no power. Found R361, R362 reading well overtheir normal 6.2 ohm value. | ||
| Sony | CDXU8000 | 15P FLEX CONNECTOR TORN | Both cables torn in same spot. Samples forwarded. Cable isbeing torn by shield on main board. I have not seen this shield on othermodels using this mech. | ||
| Sony | CDX5270 | NO TUNER AUDIO OR SEEK (FOUND IC503 DEFECTIVE) | No tuner audio - tuner wouldn't seek, would only increment.STEREO always displayed. CD functions and audio ok. | ||
| Sony | CDX5260 | WON'T LOAD, MAKES CLICKING NOISE | Will not take CD's makes loud clicking noises. | ||
| Sony | CDX5260 | STARTS PLAY BUT DOESN'T CONTINUE (REPAIRED TRACES ON MD MCB) | CD goes into play, plays for 3-5 seconds. CD mech/FOP emitsfaint squealing noise as though sled circuit is starting to track. Uniteventually reads code E0-4. |