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Sony Repair Tips




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Search: sony
Results: 20100
Make Model Symptom Problem Solution By
SONY CCDFX510
Crackling noise in audio playback Crackling noise in playback only. most evident in low notes.
SONY GV300
Curl at top of picture Unit came in with bad heads. replaced upper drum and picturewas restored. however, there was a curl at top of picture during playbackand was especially pronounced during still and slow-motion. tape path waschecked as was head switching. the still/slo
SONY GV300
Slow-motion and still picture distorted In still picture and slow motion picture was distorted withwhite lines etc. this was not corrected with the still/slow buttons. tapepath and head switching position were correct. cue and review were ok.the problem was mostly evident on tapes recorded in
SONY KV32XBR95S
No picture in tv mode, resoldered both q-605, and d-655 No picture in tv mode, the video mode was ok but missing two inches at the bottom of screen. found all b+ voltages low causing incorrect voltage at tuner and vertical.
SONY DTC670
Unit won't completely rewind Unit would play and fast forward correctly, but wouldn'tcompletely rewind a dt120 tape. all play tensions were correct. however,with no tape loaded and mechanism in rewind, turning take-up spindle withfingers revealed high stiffness and drag.
SONY HCDH1500
Inoperative unit Unit is inoperative. start up power supplies and fuses on power supply pcb all are good. no red led for standby.
SONY TCW31
"b" deck has no playback B deck has no playback. ic-303 is not switched from a tob deck.
SONY KV20EXR20
High pitched sound, replaced c-507 High pitched sound gets louder after two hours. used the radioshack sound level meter with an extension tube connected to its input.this allowed pinpointing of the part.
SONY KV20TS27
No sound, replaced ic101 No sound.
SONY STRD990
Unit cycles off immediately when powered up Unit immediateley shuts off when powered up. fuses were allfine.
SONY TRWR670
After unit heats up, head assembly jumps erratically, ic802 After unit warms up, heads continue to jump erratically.
SONY SEQ711
Could not select between tape and line functions Unit only worked through line inputs. it could not switch totape mode.
SONY TADL100
No audio/communication is ok No audio out of decoder board. efm is ok. found cold solder joint on x-201 and case ground shield.
SONY CFD757
Distorted audio above level 5 - l-308 (open) Audio distorts above level 5. sounded like feedback. i couldsee on scope distortion at selector ic. finally disconnected mic amp icand distortion won't go away. Ωed out mix mic jack and found it not tobe grounded through l-308 which was open.
SONY TADL100
Distorted audio Audio distorted, signal clipped.
SONY CFD460
Cd plays intermittently Cd would play intermittently. q-706 junctions checked ok with anΩmeter.
SONY STRD790
No display and unit works Checked ac voltage and +30 volt lines to display and both weregood. replaced fl-101 without resolving problem. traced the fl clock andfl data to system control ic-202 pins 18 and 19. found below standardsoldering on this ic.
SONY KV27EXR15
Picture gets dark intermittently, resoldered r-739 Picture gets very dark intermittently. it shows color only.
SONY CCDFX410
Unit chatters when fully loaded/unloaded Using the mode box when unloading stop and fwd lights wouldkeep repeating.
SONY STRAV1070X
Erratic symptoms Servicer has four units with the following symptoms:1. remote may not work. 2. on and off by itself. 3. e is on display.4. no display. 5. surround and drlc relays on and off by themselves. 6.cannot turn unit off. procedure from service bulletin no.