TV Repair: Common Faults and Solutions.

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Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
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.
SONY	SL5101	No p/n for the clock and timer button door	The front assembly does not show any part # for the clock andtimer button door, which means that we have to replace whole front assythat is very expensive (about $67.00) while the door is a lot less. -hq comments: rpc does not stock the door. the reaso
SONY	KV2670R	Part # for cable between ant terminal to hit terminal	The part #1-536-836-11 does not come with the vhf/uhf inputcable. what is the part # for cable that goes from the ant term board tothe hit terminal? -hq comments: the cable in question (from ant terminal to hit terminal)is actually listed in s/m, page
SONY	WA8000	No change of directions	Unit will not change directions. lock lever will not moveenough to catch and lock in reverse position. lever appears to be tootight on post or some projection on chassis or lever is inhibiting move-ment so that lever does not move far enough to lock, m
SONY	PSX600	Hinge for the dust cover	A customer requested the hinge for the dust cover. since thehinge itself is not available he ordered the dust cover assy which shouldinclude two hinges. but the assy from npc did not include them. -hq comments: checked with npc and found the dust cove
SONY	SLHF300	Various functions would not operate	Three units with similar symptoms. various functions wouldnot operate when buttons pushed on the betamax. different loss of func-tions on each unit but with all three, no remote control commands.
SONY	WMF10	Intermittent speed/wow and flutter	Tape speeds up and slows down intmtly, while pressing on servobd (main). it will go back to normal speed temporarily. this has been aconstant problem and was usually cured by replacing the main pcb. i foundr904 was not making contact where it is solde
SONY	SLHF500	Lt ch audio noise	This customer had left ch audio distortion or noise on tapeplayback.
SONY	SLHF500	Am rfi problem on left channel	This customer complained of left channel beta hi-fi noise.the noise was from am station at 1470 khz.
SONY	SL30	Picture collapses vertically when in betascan	When sl-30 is connected to ge 19, mod #17ac3642w setcollapses vertically when in beta scan. this does not happen with sl-5400or 5600. tried another sl-30 with same results.
SONY	SLHF500	Tape jam	This unit has a tape jam. the tape was on the backside of the #7 guide.
SONY	KP5000	Projection tv video screen cleaner	When applied, the video screen cleaner left streaks on thescreen which could not be removed. also burnt and irritated his hands.
SONY	KV1361	Dark picture, replaced crt, r-557, and c-556	Servicer has had 3 sets (one kv-1361, two kv-1357rpicture tubes. both sets had open componets r-557, and c-556.servicer replaced both r-557 and c-556, but they both opened up within afew seconds. servicer removed socket board from tube and measured the
SONY	CDP200	Disc table motor rotation	Disc table motor turns backwards at high speed at turn on.circuit checked okay back to ic401. found no rfck 1/4 pin 23. checkedrfck output from ic503. no rfck there either. found no clock at pins 15and 16. crystal x501 defective.
SONY	KV2680R	Dead set, def h drive t-501 causing damages	The unit came in with a shorted horiz. output transistor anddefective b+ regulator package. we found the problem to be caused by adefective horiz. drive transformer. the primary was shorted.