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Sony Repair Tips




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Search: sony
Results: 20077
Make Model Symptom Problem Solution By
SONY SUS5420
Door mounts crack during assembly During assembly, as the screws are inserted into the untappedholes in the cosmetic rails that mount the glass door, the plastic cracksaround the hole. perhaps the plastic needs to be stronger, or the screwssmaller, or the holes pre-tapped for the screws
SONY STRVX750
No audio out - replaced shorted q724 Unit locked up. no audio out. q724 shorted. dc goesthrough output transistors.
SONY STRGX909ES
Unit has hum - resoldered power board Found bad solder on power supply board, particularly aroundconnector cnp901. unit has 60 cycle hum.
SONY STRGX808ES
No power/dead - d951 shorted On power supply board, there is a shorted diode d951. unit completely dead no power.
SONY STRGX808ES
Protector light is flashing - ic621 defective Within 2-3 seconds of unit turn on, unit will go intoprotection.
SONY STRD790
Manufacturing defect - wiring reversed No symptom noted, however this could cause buzzing in rightchannel. during troubleshooting of another problem, i found ground & rightsignal wires were reversed. the shield was carrying the signal and thered wire was actually ground! i had to swap red a
SONY STRD711
Front panel ic104 defective - replaced ic401 I had replaced ic202 (syscon on main bd) to get 5v delaypower. now unit has defective ic104. it shows letters display whichkey? when i push button: theater, dolby sur, muting. unit can becontrolled by remote.
SONY STRD590
Unit inoperative - q762, q763, f902 faulty Unit is inoperative upon diagnosis of unit found f902 to beblown and output transistors q762 and q763 were shorted.
SONY STRD311
No display or output - transformer open Unit has no display, has power relay kick in, but primarytransformer open no power to unit at this point (open t901).
SONY STRD311
No audio output - d955 shorted No audio. no -12v.
SONY STRD1090
Ic203 incomplete part desc - correct part desc hd6433258a37f Ic203 is shown in the schematic and parts list as anhd6433258a. this would be the unprogramed part. the complete part shouldbe hd6433258a37f. -hq comments: the kcp screen shows the part number 8-759-087-62associated with the correct part hd6433258a37f
SONY STRD1090
Ic150 incorrect parts desc - correct part desc hd6433258a39f Ic150 is listed in the schematic and parts list as anhd643325a39f. the correct part is an hd6433258a39f.
SONY STRD1011S
Totally dead - ic203, received mislabelled part from kcp Tech at circuit city called about this unit with no lights orpower up. checked must-haves around ic203 and all were ok. tech orderedand replaced ic203 no help. when i checked board i noticed suffix on icwas -074 instead of -079. bag and label were marked
SONY STRD1011
Protection comes on - ic601 and 621 defective Unit turned on, after 10 second protection comes on. foundic601 and ic621 defective.
SONY STRD1011
No audio - regulator ic403 bad Tech at circuit city called about unit with no audio output.he traced signal up to ic404, then found no clocks were working. whilechecking ic405, he found ic403 regulator was shorted. he subbed voltage onschematic 2.3v, but still no clocks. i told him
SONY STRD1011
Protect is on at turn on - replaced rear channel ic601 Protect is on - as soon as you power the set.
SONY STRAV320
No output, volume knob is not illuminated - r703 chngd value Tuner cannot tune to stereo, no light from volume knob, plight on. i found r703 overdiscipated and became 3.5k instead of 39Ω.
SONY STRAV1070
No power, will not turn on - q951 defective Q951 defective on power supply board. 5v supply missing.
SONY STRAV1020
It has no display, no power relay - q812 shorted On power supply board, q812 shorted. unit has no display,relay won't kick on.
SONY MHCC00
No power - cnp101 not soldered No display illumination or power at the amplifier system.cnp101 ac connector no solder at the solder side of power board.