TV Repair: Common Faults and Solutions.

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Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
SONY	KV27SXR10	Vertical jump using vcr, leaky c-1734	There was a vertical jump in the picture using vcr playback.
SONY	KV27TX11	No bar display, replace ic-101	No bar display on screen.
SONY	CDPC20	Incorrect operation of disc drawer	On power-up spindle chassis would drop and carousel wouldspin, but drawer would also open half way and then close. also, whenchanging from disc to disc, drawer would again open half way and thenclose. otherwise, unit worked correctly.
SONY	D4	Incorrect voltages in service manual	The voltages around ic-401, q-407 etc. in the power supplyappear incorrect. if they are incorrect, what should they be? -hq comments: pin 1 = 1.36v, 2 = .92, 3 = 1.74, 4 = 1.2, 5 = 5.72, 6 =0, 7 = 0, 8 = 9.76, 9 = 0, 10 = 3.57, 11 = 2.54, 12 = 1.28, 13
SONY	KPR4620	Dust on screen, replaced screen	Dust on screen.
SONY	EDC55	Lens hood, lens cap and grip belt part numbers	The part numbers for the lens hood, lens cap and grip belt areas follows: description part number lens hood 3-730-741-01 lens cap 3-730-742-01 grip belt 3-730-743-01 -hq comments: a
SONY	FD35	Tuning dial for fd-35a	Detroit ssc has received four cabinet assemblies (front) andthe tuner dial is missing. there is no part number for dial so i assumethis should be part of the cabinet. could you please check into this?thanks. -hq comments: tuning indicator is included
SONY	CDXA10	Cnp901 line out cable	Cannot identify part number for cable between jack board andmain board. two versions - older units (serial no. 17627) have a single8-pin connector for the jack board and dual 3-pin (5-pin connectors) forthe main board. newer units (serial no. 22395) ha
SONY	CCDF30	No color e-e in camera mode	No color from camera section and line in. all other functionsworked properly. found q-360 not switching properly. it would not toggleic-365 on ic-364. camera 5v out of dc-dc converter was just low enough tokeep q-362 on about 3.7vdc. this in turn wo
SONY	CCDV3	No camera luminance	No luminance coming from camera section. pin 36 of ic-801had no luminance signal, all dc voltages were correct and all signals toic-801 were present - yh, b-y, r-4 and yl-yh. changed ic-801 still noluminance.
SONY	KV27SXR10	Line across top of screen, ag holder, no solution	The outside tech in costa mesa informed me of customerscomplaining about the three band that hold the aperture grille fromoscillating. the problem is the customer can see the top line from adistance of 7 to 8 feet. the tech has been out to four custome
SONY	CCDF30	No horizontal sync in camera position	No horizontal sync in camera position.
SONY	GV8	Noisy when breaking	Noisy when breaking. take-up-table gear teeth were worn out.
SONY	GV8	No video out from line	No video out, when line input is used, pin no. 8 on ic-701 isdead.
SONY	CDXR7	Cover will not snap onto frame/missing indentations	Cover (3-323-287-01) will not stay snapped onto frame(3-323-218-01). frame does not have indentations like original to acceptand hold cover. -hq comments: i am checking with tokyo to see if there were two chassisand covers.
SONY	CDXA20	D-509 wrong on new mcb jack	Cdx-a20 in for smashed mcb jack and back. replaced mcb andback. noticed elevator ran slow.
SONY	EVS1	Unit accepts no commands	Unit powers up but accepts no commands. fr-27 and ts-64circuit boards corroded.
SONY	KV1380R	No picture/white lines at the bottom of the picture, r552	No picture, high voltage ok - white lines at the bottom of the picture.
SONY	SLV70HF	No drum rotation	Unit loads tape capstan turns, but the drum does not. thetape is then brought to the half loaded position and all commands aredisabled except eject.
SONY	TAAX285	Dead amp	Fuse 1 blown no power. replaced fuse had power but no audio.found emitters of q-511, q-512 had 55 volts on them - and were shortedfrom emitter to base.