TV Repair: Common Faults and Solutions.

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Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
SONY	TCWR930	Service manual correction - d914	D914 is a 24v zener diode. it is listed in the parts listas: hz27-1ltp / 8-719-992-71. i do not believe that this is correct.also, it is not listed in the computer. -hq comments: the diode type is correct. however, the p/n is not.the p/n should be 8-
SONY	KV2680R	Flashing video, cold solder on jumper to ic-301/p14	The picture would intermittently flash and the contrastlevels would shift momentarily. we found the problem to be caused by acold solder connection on the jumper connecting to ic301/p14. seeattached.
SONY	CPD1302	Dead	Dead set. occurs 1 or 2 times everyday at exxon company.
SONY	CPD1302	Static shock	1) static shocks when touching chassis/screen 2) a spark ofstatic when removing screws of the back cover -hq comments: we found the static at crt surface exist only when the setis turned off. however when the set is on, there is no static on thescreen
SONY	CCDM8U	Outside pictures white and inside ok	Outside pictures real white - no iris operation.
SONY	CCDV3	Software jam	Take-up reel will not work properly causing slacks on tape,eats tape and will not eject.
SONY	CCDV8AFU	Replacing ccd pick-up	This unit had intermittent picture. found cold solder jointon cp-9 board. i have to remove ccd imager to repair unit. during removeor install one, seems damaged.
SONY	D7	Pll out of adjustment	Skips with disk defects greater than 400 microns. found plladjusted to free run at 4.19 mhz.
SONY	STRAV380	Cold solder joint on oscillator resistors	No display. no functions. power supply appears ok.
SONY	CCDV8	No playback pause	No playback pause, but record pause ok. when pause is pushedduring play, sound mutes but tape does not stop. adjusting rv501 on sv-13board to minimum resistance allowed pause to work but pulse width out ofq625/q626 mmv was only 0.5ms instead of specifi
SONY	SL5800	Supplement to s/b #55 (timer ic)	S/b #55 (3/81) indicates other details concerning the changewill be covered in a forthcoming publication. has anything beenpublished? -hq comments: i checked with tokyo, and there is no additional infor-mation available. a revised s/b will be issued t
SONY	CCDV8AFU	In vtr power on, unit comes on in record pause mode	At turn on (vtr side) with the rf modulator plugged in, itwill come on in the record pause mode. if the rf modulator is left dis-connected, then it will come on in the normal stand by mode. there is aglitch in the power supply when this unit turns on,
SONY	STJX205	No led's	After sometime led's quit working. found ground screws ontuner board loose.
SONY	RME100V	Editing with jvc hr-d225u vhs recorder	Editing using ccd-v8afu and jvc hr-d225u, jvc model will notwork with rme-100v. rec pause/rec is only actuated with isolated contactclosure to pause jack. -hq comments: rme-100v only outputs an active low level (0vdc).we will update our list of vhs com
SONY	CCDV110	No functions	Unit would not initialize, no functions. no led display.checked ic302 clock, worked fine. checked data lines, no outputs andall dc voltages were off.
SONY	KV2781R	Popping sound in audio, replace ic-101 on "a" board	Popping sound in audio when changing channels. also, whenmute button pressed, audio level would go high and stay high until volumelow function was pressed or set was turned off.
SONY	WMD3	Missing part number - rotor assembly	Incorrect: ref #141 p/n missing. description missing. correct: ref #141 p/n x-3310-905-00 description - rotor ass'y -hq comments: we issued a s/b in oct. 1986 concerning the missing p/nfor the rotor ass'y. it is tape recorder s/b #216.
SONY	PSLX255	No power	Repetitive failure of r806 in ta-ax430 unit caused byps-lx255.
SONY	CCDV3	Autofocus motor noise	Auto focus motor noise.
SONY	CCDV110	No picture in camera mode	No picture in camera mode.