TV Repair: Common Faults and Solutions.

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Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
SONY	CFS220	No tape and/or batteries going dead	Unit will have no tape functions and/or will have a constantcurrent draw on battery or ac power supply, even in the off position.this will cause battery to go dead in approximately three days.
SONY	PSFL7II	No drawer trnasport +6v ps dead	No +6v supply - all others good. regular circuits ok. fuselink ps409 opens because of a shorted filter cap. voltage rating on the100uf caps are 6.3v that leaves a very small difference between vmax andsupply. if other supplies are found to be shorted
SONY	CCDF40	Threading problem	When unit loads tape, the entrance (tg4) does not go all theway into the drum base track and this causes a tape path problem. this isintermittent. i have three units with the same problem. -hq comments: found loading path was not properly greased. cl
SONY	RMP700E	Non active band switching on strav880, no aud/vol control	This remote will not switch bands on an strav880, but the pre-set buttons work ok. also, it has no audio volume control. this is not adefective unit. -hq comments: you are correct. the sircs codes are different. wesuggest that the ssc program the cu
SONY	RME7	Will not operate pslx520, but ok with psfl770	The start phono command will not operate a ps-lx520, but worksok with ps-fl770. in both cases, the receiver was a str-av880. the codeoutput by the rme7 for phono start is 01000110 11111. however, the codeoutput by the rme7 for phono start is 01000110
SONY	FDL320	No color	No color. by flexing the pc board, the color would come andgo, an obvious sign of a bad connection or a break. waveform checks re-vealed distortion at tp-31, emitter of q-503. also, the dc level at baseof q-503 would rise to 1-3 vdc when no color disp
SONY	PSLX100	Incorrect part sub	When above part number is ordered a sub is received(x-4909-004-1), which is the turntable for a pslx330. this sub will notfit the pslx100. the correct turntable for the pslx100/lx285 is listed inthe manual as the second line entry under item ref. no. 1
SONY	TCWR800	Non engagement of head assy on transport assys (tcm 170r)	Cam gear reference number 204 will keep on rotating and headassembly will not pull up into cassette. it will reverse direction andtry other side and then stop.
SONY	TCWR9ES	Non engagement of head assy on transport assys (tcm 170r)	Cam gear reference number 204 will keep on rotating and headassembly will not pull up into cassette. it will reverse direction andtry other side and then stop.
SONY	TCWR9ES	Play mode inoperative - deck b	(b) deck would not stay in play mode.
SONY	TCWR800	Play mode inoperative - deck b	(b) deck would not stay in play mode.
SONY	BMC110	No filament voltage, no picture	There was no filament voltage to the tube.
SONY	CCDF40	Threading assembly intermittently stops short of loading	The threading assembly intermitently goes to the fully loadedposition. when this happens, the tape is ejected.
SONY	SLHF900	Unit does not accept the cassette	As the cassette is placed into the cassette compartment, theloading ring assembly goes into the loaded/threaded position. the cass-ette compartment jams and does not accept the cassette.
SONY	FDL320	Vertical blanking area	This unit is one of four which have the same problem. when wereplaced the original lcd, all the replacements have an area near thebottom of the screen resembling insufficient sweep and displays a verticalblanking area. this symptom was not on original
SONY	TAN77ES	Meter lamps continue to go bad	One row of lamps was out because there was a bad lamp. re-placed bad lamp and about 30 minutes later the other row went out becausea lamp went out in that row. replaced that lamp and then the other rowwent out. help - have three units with this proble
SONY	D15	The enter/remain or play function works intermittently	Enter/remain button or play button does not reach their res-pective switch when it is pushed. the enter/remain or play function doesnot work or intermittently. i have many units which have this problem.
SONY	VCT600	Loose top half on panhead assembly	Top half of panhead assembly was loose.
SONY	KV1395	Set would not turn on always - sometimes ok for 2-3 weeks	Set would turn on intermittently. found sv line wouldsometimes be 3.5 to 4.5v (would vary).
SONY	SL2710	Intermittent y signal in pause and betascan	Intermittently the luminance signal would disappear. the10.7mhz at pin 3 of ic-14 would come and go intermittently.