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Sony Repair Tips




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Search: sony
Results: 20100
Make Model Symptom Problem Solution By
SONY KV32XBR70
Has hv, no pix, no sound, replace ic-444 When unit was plugged in, set would turn on itself. it wouldhave high voltage but no picture and no sound. you could not control any-thing including power on/off. the unit was in micro lock-up.
SONY XR7500
No tape play No tape player movement and tape drive is inoperative.
SONY D15
Intermittent skipping - will not play Noise riding on rf waveform (eye-pattern) causing skipping.when severe, unit spins up and then shuts down.
SONY D66
Static noise in audio after warmup After 15-45 minutes of play, a static noise (similar to a def.ram ic) appears in the audio. cooling chip restores normal audio. alsopertains to serial number 60733.
SONY ITA750
Eats tapes Head panel not disengaging cleanly in tape mechanism causingit to eat tape.
SONY ITD250
No voice out of handset Traces are ripped on pins 1 and 2 of mj301.
SONY ITD100
No voice out of handset Traces are ripped on pins 1 and 2 of mj301. also pertains toserial number 19745.
SONY ITA850
Unit continuously siezes and then resiezes the line Q-101 was not fully saturated, causing the line to be seizedand released continuously.
SONY ITA750
Unit continuously siezes and then resiezes the line Q-101 was not fully saturated, causing the line to be seizedand released continuously. also pertains to serial number 54571.
SONY ITA850
Dial tone out of handset and speakerphone was low Q-105 was leaking e to c dropping the voltage on q-101 andzd-106 in half, from 4.6v to 2.3v.
SONY ITA750
Dial tone out of handset and speaker phone was low Q-105 was leaking e to c dropping the voltage on q-101 andzd-106 in half, from 4.6v to 2.3v.
SONY CFD750
No sound on cd No sound from cd. disc spinning and display counting. ic-704has lh5116na-10 instead of cxk5816m-12l as listed in service manual.
SONY D25
Intermittent operation w/ dc-in & bp100, internal battery ok Unit would not work intermittently. moving dc input cablecaused power to cut in and out. while upside down, unit runs reliably.when sitting flat on bench, power would cut on and off. moving fop sub-chassis slightly would also cause power to cut out.
SONY KV27XBR60
Hor. output transistor repeatedly fails, replaced c-525 The horizontal output transistor would short every five to sixdays. we found the problem to be caused by a defective coupling capacitor(c-525) in the base circuit of the horizontal driver. c-525 wouldintermittently change value which caused the output
SONY GEN-CAM
Service tool When replacing no. 6 tape guide, it is very difficult toloosen the screw that holds this guide in place. by taking the screw-driver bit no. 7-700-752-01 heating it and bending it at a 90 degree angleit is very easy to get to this screw. we did this at
SONY CCDF56
No remote operation Confirmed output of remote, although no remote functions.isolated to poor contact at pin 17 cn-502.
SONY DTC75ES
Intermittant stop/tape jam Intermittantly the unit will stop, lock-up, eat the tape. theproblem was seen more in the beginning of the tape.
SONY DTC75ES
Tracking elapsed time on dat head drums U.s. machines store head drum elapsed running time. i nowrecord these times on all dat workorders. not only does this show howintensely some customers have used their consumer machines (especiallyradio stations and recording studios) but when you repai
SONY KV2775R
No tuner control, replace r-1576 on "d" board The tuner was locked up on channel 2 and it was not possibleto change volume or picture settings. the 5v line supplying the tuner andd/a was 3.5v. this line is developed via regulators q-503 and q-501. thepower supply is the flyback at pin 7. we found the
SONY STRAV920
Surround sound shuts down on left channel The left channel of the surround sound amplifier would quitafter about 10 minutes of operation. the output ic (ic-731) was runningvery hot. we found the problem to be caused by an open decoupling capaci-tor c-739.