Search: sony
Results: 20100
Make Model Symptom Problem Solution By
SONY XM1
Open q210 After 20-30 minutes of running normal it distorted l. ch.
SONY WMF10
Incorrect soldering of th901/r904 These units displayed erratic or intermittent speed control.the problem is with the connections on r904 or th901. these parts arenot properly soldered to the board and are occasionally offset.
SONY WMF8
Plastic eject lever shears off The eject lever shears off at the end driven by the stop/ejectbutton. the wm-11 eject lever is made of metal. can we substitute? -hq comments: use the metal eject lever in the wm-f8 instead of theoriginal plastic one.
SONY TCFX510R
Malfunctioning ic601 This unit would intermittently go into reverse and the counterwas inoperative. we found ic601/system control ic to be defective.
SONY TC78
Leaky control transistor There was no sound coming out in pb mode.
SONY STRVX750
Correct setting of 4/8 ohm switch Found l802 open twice. upon talking to customer found he wasusing 8Ω speakers. found imp sw on back of unit in 4Ω position. -hq comments: with the 4/8Ω switch in 4Ω position, a loadimpedance of t903 is lower than that in 8Ω position, ma
SONY STRVX6
Missing p/n in manual A servicer had a unit with open diodes d901 and d902. thesediodes are the part of the resistor/diode network (cp001) in the pps.the p/n is not listed in the s/m. -hq comments: cp (composite parts) are not stocked. repairs are to bedone by replacing ba
SONY PSFL9
Irregular guide bar The unit preformed very well except that when the tone armreturned to the rest position it would vibrate during the last inch oftravel. we found the guide bar to be slightly irregular causing the tonearm to slightly bind and vibrate.
SONY D5
Malfunctioning crystal oscillator Only noise was heard in audio.
SONY CDP400
Malfunctioning ic501 Noise in playback (ticking noise), different frequency ofnoise from different discs.
SONY CDP400
Loose wire in cn22 Insert disc, runs fast for 15 sec. then ejects servo.circuits check out ok.
SONY XRM10
No tape ejection Motor would run at all times and tape was difficult orimpossible to eject. press-fitted pin becomes loose. therefore, themotor keeps running. -hq comments: new part has no notch, which presents the pin from becominloose. you can obtain one from rpc/t
SONY TTS81
Missing instructions in manual No instructions are given on how to set tracking force.
SONY TCFX600
Relay not toggling properly In playback, when going from dolby off to dolby c, unitbreaks into oscillation in both channels. when going from dolby b, todolby c, no problem. unsoldering either pin 2 or 8 of ic001 cures theopposite channel.
SONY TCFX7
Incomplete instructions in manual Page 22 of s/m, instructions for servo adjustment areincomplete. step 7 should refer to pin 21 of ic902 for pulse adjustment. -hq comments: as you pointed out, the tp (silk-screened as speed) isnot shown for the #7 in the adjustment procedures. the pi
SONY TAN88B
Incompatible v-fets Replaced v-fets with new ones and power supply fails. butwhen a set of v-fets from another unit are used, unit worked correctly.
SONY STRVX550
Tape deck plugged into ac outlet on back malfunctions Tape deck plugged into this unit stops/starts/rewinds etc.automatically and randomly upon power on/off activation. it is notedthis only happens when the speaker grounds are wired together or when unitis used with a speaker switch box that does not have
SONY PSX75
Defective hall ic d601 The turntable motor did not turn although there was a kickpulse (current) through the motor coil.
SONY PSX75
No stylus force The tone arm did not go down and there was no stylus force.
SONY MTL10
Detection sensitivity adjustment misadjusted Unit would not line up properly to load the first cassette.