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Results: 87715
Make Model Symptom Problem Solution By
SONY FD40A
Raster distortion when moved within any magnetic field When unit is moved, distortion occurs in raster, ie, bottom ofthe screen will bend causing distortion in scan lines and the raster willexpand and contract causing a change in size. -hq comments: the symptom you are describing is common to all crts. iti
SONY KV2670R
Different ic301, see s/b ctv0236 and tvp0025 Ic301 in actual set is not the same as in the service manual.manual and schematic say ic301 is a cx-20129. same units actually use acx-20193. these parts are not interchangeable. p/n for cx-20129 is 8-752-012-91 p/n for cx-20193 is
SONY CDP302
No display Machine functioned normally with the exception of having nodisplay. checked filament voltage and inputs and outputs to displaydrive chip and found no problems.
SONY KV25XBR
Dead Unit was dead. no functions. traced problem to shortedd1657 (pin damper diode).
SONY KV25XBR
No sound No audio output. traced problem to ic1107 on the x board.this is the second report i know of this problem.
SONY BMC110
Distorted playback picture Recording played back showed distorted picture only filling1/5 of the left side of screen. a white spot was in the center when theiris was opened up.
SONY SL5000
Can Sometimes ejects tape when play is pushed. ant sel in wouldchange logic when button pushed but that the output stayed high. changingmicroprocessor produced no change. pins 30, 31 and 29 all were high.unsoldering these pins allowed the program select t
SONY STRV55
No tuner or memory No tuner output or memory functions. tuning voltage to tunerremained at 30v regardless of frequency indication on display.external dc on tuning line resulted in good reception. dc on ic402were wrong for pins 2, 3, 8 and 14, 15. replacing ic401, ic402,
SONY SL2400
Spurious threading at turn on Unit would attempt to thread tape immediately at turn on,even without a tape inserted or loaded. problem was intermittent.
SONY STR313
Hifi bulletin #116 Ic601 si-1125hd original was replaced with si-1225hd and unithad distorted right ch. another si-1225hd was installed, same problem.
SONY SL30
Low audio playback level By shimming head out 0.012 inch the audio level came up toaround normal levels. i would like to know why the head angle is sotouchy on these two head samples.
SONY TCYX50
No part # for capstan motor No part number for capstan motor in service manual. -hq comments: the part number is 8-835-049-01. the part is availablefrom npc.
SONY TCK65
Missing part number for chassis ass'y mechanism Need part number for chassis ass'y mechanism. -hq comments: the number is x-3564-020-0. it is available from npc.
SONY FD40A
Keystone picture, replaced q601 Keystone raster. found no 17 volts being generated.
SONY KV1961
Intermittent audio, replaced neon lamp On position number 6, audio would come and go. found neonlamp causing triggering of the muting circuit.
SONY MDRFM5
Part number for s401 We need part # for s401 auto off switch. -hq comments: the part # is 1-553-589-00. the s/m for the us version ismissing some parts. this has been supplemented with the radio s/b #172.parts are also listed in the s/m for us/e/aep version.
SONY SL2700
Dead Push power switch on, power switch light does not light, drumis turning, tv/vcr switch does not work, and will not take a cassette.
SONY BMC110
Poor tape path, intermittent distorted picture When playing back on a good vtr, the playback picture haslines and horizontal pulling at the top and bottom of the picture (this isintermittent). also, picture bounces vertically intermittent. thisproblem looks like the betamovie has bad tape path.
SONY STRVX550
Inoperative remote Receiver will turn on with remote but no other functionswork. all previous modifications including reset, capacitor, surgesuppressors and ground repairs were done. serial data is entering ic403at pin 21, but no output.
SONY CFSD7
Intermittent functions Unit will only go into rewind or recording mode inter-mittently. stop button will have no effect. disconnecting power cordwill reset unit to stop mode. pressing any function button, the unit willgo only into rewind.