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Sony Repair Tips




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Search: sony
Results: 20100
Make Model Symptom Problem Solution By
SONY KV25XBR
Stereo light blinking Stereo light indicator blinks even when receiving nonstereochannels.
SONY TAAX520
One channel out This is the second unit we have seen with the same problem.the solder connections on the input board from the input jacks arebreaking loose. the first unit had one channel out on phono. this unithad one channel out when the equalizer was used. both we
SONY SLHF900
Intermittent pause release Once every 10 or 20 times during pause release the tape gotdamaged by the machine. the cause was that the take-up reel did not turnas a result tape wrapped around capstan shaft.
SONY KV2781R
Dead, resolder h drive transformer Set came in dead, scoped horiz osc and i had an output, scopedhoriz driver q551 collector and had an output. scoped base of horizoutput, found no signal. traced problem to driver (secondary) trans-former.
SONY KV2782R
Sleep light comes on, no other functions, replace r-555 With unit turned on, sleep light would come on, hi-voltagewould come up, no other functions, no sound, no raster. scoped ic101 ona board, pin 7 found no vertical pulse. traced problem to d board,found no vertical output. found no 27 volts on pin 7 of
SONY KV25XBR
Sleep light on, high voltage on, nothing else Unit turned on, sleep light comes on, hi voltage comes on,no raster, no sound, no functions. found vertical pulse missing onpin 4, ic103 on a board. traced problem to q127, base had vertical,nothing on collector. transistor was opened.
SONY XR27R
Incorrect part no. Servicer ordered above part no. (1-237-124-11) that is listedin service manual. part was wrong size for xr-27r.
SONY KV2649RX
Functions inoperative, replaced x001 Set would turn on and off manually but no other functionswould work. only problem we could find was clock signal at pin 1 ic001was correct freq. but was about 2.3vpp.
SONY KV2783R
Sleep light on, set was dead, replace ic-501, r-555 n diodes Sleep light on, set was dead. both damper diodes shorted,r555 on 24v line was open. troubleshooting revealed no switching pulseat base of q553 which probably accounted for defective damper diodes.further check revealed ic501 to be defective, causing r5
SONY KV2681R
No sound, replace t-1104 on x board Set had no sound. after considerable time spent in tryingto isolate defective part, i determined t1104 had to be open. bridgingit with a 0.05 capacitor restored sound. by the way, it was very diffi-cult to trace audio to determine where the problem wa
SONY EVC8U
No part number for flex connectors Can not find p/n for flex connectors shown in explodeddiagram on page 101. -hq comments: connector part numbers are listed on pages 108 and 114 ofs/m. part numbers are 1-557-555-11 (cn509, sv-13) and 1-562-583-11(cn506, mc-4).
SONY CCDV8AFU
No y information Picture camera looks like chroma with no video. bluish redimages slightly smeared.
SONY CCDV8AFU
No recording Unit playback was fine. would not record anything at all.snow was all that was on tape. all necessary signals were present,video, sync, record correct. would erase previous information.
SONY CDP650ESD
Alignment After installing bu-1c, alignment difficult to perform forrf pll.
SONY XR780
Am/fm tuner lock-up When advancing tuning manually, tuner would advance approx.2/3 of the way up the band normally, after which point the display wouldcontinue to advance, but actual station tuning would not. in scan mode,tuner would advance 2/3 of the way up the band, aft
SONY XR66
Schematic error - power pcb Seems radio would not turn off when ignition switch is off.found power pcb not etched properly causing continuity between yellowlead (back-up) and red lead (acc).
SONY M80
Rec/play "u" spring Need p/n for u spring that operates r/p sw.
SONY KV25DXR
Hmh not locked Home management helper program was out of sync. looked likea lot of dashed lines.
SONY CCDV8AFU
Intermittent break-up in picture/speed change sp/lp Record ok. during playback any tape including self-recordedpicture would break-up with white streaks and speed would change back andforth between sp/lp modes. troubleshooted atf circuit to no avail.changed ui-6 board with known good board, same thing.
SONY KPR4110
Intermittent picture, replaced ic-6006 This unit had intermittent muted video (no raster) whentapping on ic6006 or ic6008. the picture would flash to black.