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Sony Repair Tips




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Search: sony
Results: 20072
Make Model Symptom Problem Solution By
SONY PSFL9
No function control No function control and erratic display.
SONY KV1205
Poor color low brightness, replaced c801 Picture looks like gray scale off, as with bad picture tube.screen voltage to c board reads 700v, should be 900v. b+ to c board reads117v, should be 178v. brightness control will not turn brightness downall the way.
SONY WMF10
Speed way too fast (intermittent) The speed in play would intermittently increase drastically.flexing the main board in the servo area would cause the problem to comeand go.
SONY KV2680R
No vip or timer function, v size adj cured vip Intermittent vip, sometimes no vip function at all.
SONY KV2654R
Burning r608, replaced d604 R608 gets very hot and opens up in few hours. found d604leaky, had to unsolder the diode to find it was defective.
SONY KV1770
Purity problem This unit came in twice for purity problem. several times theunit was degaussed at the customer
SONY CFS3000
Bent button ass Bent button assy on left side where playback and recordbuttons are locked.
SONY TAE20F
One channel weak The right channel volume level was excessive due to aninternal short (115Ω) to ground thru the case of the control. thismade the gain of ic251 too large due to the reduced negative feedback fromthe tone controls.
SONY TCFX500R
Defective relays cause motorboating in record mode Intermittent motorboating on record. meter pegs left ch.this is one of many def. relays in the past month.
SONY CRF320
Intermittent loss of short wave Unit lost short wave bands once in a great while (weeks or months apart).
SONY SRF20W
Intermittent loss of left channel Left ch. cuts out intermittently.
SONY BMC110
Intermittent no power Upc received on command but occasionally failed to turn on.
SONY STRVX750
Inability to program using front panel controls Technician was unable to program some digits into receiverw/front panel buttons, but programmed ok w/remote control.
SONY SL5000
Slippage during threading/unthreading cycles Most threading problems are resolved by replacing belt,threading pulley and using sandpaper to rougher gear c surface. this gearis smooth and gets worse with use. -hq comments: roughing the surface with sandpaper and changing the egear, belt and pulley
SONY SL2710
S/m error (aug 1983) - pg 173/q003/pc-8 board Page 173, q003, pc-8 board correct part # should be8-729-103-80. -hq comments: the part number in the sl-2710 s/m (aug 83) is incorrect(8-729-103-89). the correct part number (8-729-103-80) is found in theservice manual supplement - 1 (june 84). we wi
SONY TCFX510R
Tape transport ass Chassis bent. please advise p/n tape transport complete.spring holder broken. spring ref. #327. checked w/kc npc parts rep.she says part is not available as complete assy. can you help in locatingp/n? -hq comments: the complete md assy is not availa
SONY CFSF11
Head misalignment problems Part # x-3313-714-0 does not have same screw mounting centersas original part, so cannot be mounted on deck. also does not have basicconfiguration of original part. need part # of original part. -hq comments: checked two head brackets: one original an
SONY SL2400
Board difference When replacing ic401 and ic402 on ss-13 board with new icsupd553c-276 and npd553c-287, gm-2 board in this unit does not match eitherboard shown in t/n #8490r. the board (gm-2) in this unit is shown on page93 of the service manual, former type. -hq comm
SONY TCFX707R
Intermittent transport functions All functions of transport keys would work most of the timewhen i stood unit on end to attempt repair. when unit was layed flat onbench no keys worked.
SONY D5
Service bulletin #193 Upon performing s/b #193, i ran into a problem with the mount-ing screws being too short due to missing countersinks on the new rack.