TV Repair: Common Faults and Solutions.

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Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
SONY	XR6150	Schematic diagram error	Q513 emitter of dta114es is not tied to ground (page 13). -hq comments: you are correct. we will publish a service bulletin.
SONY	XR210A	Schematic diagram error	Q513 emitter of dta114es is not tied to ground (page 13). -hq comments: you are correct. we will publish a service bulletin.
SONY	PCM601ESD	No pcm playback	Records pcm but does not playback. was loosing video acrossr521. did not get any video out of ic505 pin 7. no clock found at pin 12of ic506. found crystal x502 bad.
SONY	CCDV9	Intermittent no operation/dew sensor	Intermittent, no operation or dew sensor lighting on 3 units.found flex connectors to the mechanical chassis making poor contact.
SONY	SLHF900	Bad wow and flutter	Unit had 1.7 of w and f. checked over all of unit. found 12vline was up to 17.8v. (found by h. horimoto).
SONY	SL5600	Bad video	The unit had noisy playback on a prerecorded tape. on a self-recording, the picture looked like no interlace and very bad video. ic5was shorted. (found by h. horimoto).
SONY	CPD1303	Slight bend in vertical lines	Very slight bend in vertical lines at top one inch of screen.i was suggested that i try to modify afc circuit to resolve complaint.
SONY	CPD1303	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	TCW233	No output from a deck - display fluctuates - not in play	This unit had two unrelated problems. no output from a deckwas traced to a bad a-b switching ic. the display problem was still pre-sent. if a tape was played, then stop pushed, the meter would show anindication like an oscillation in both channels. f
SONY	EVS700U	No audio output in pb or ee use	Unit had no audio output e-e or in playback. no audio indica-tion on level meters and no stereo indicator when tuned to stereo broad-cast.
SONY	CFSW360	Missing part numbers in service manual	No part numbers listed for capacitors and resistors. seepages 25, 26, 27 and 28. -hq comments: we asked tokyo about this problem. as soon as we get aresponse, we will issue a service bulletin.
SONY	CDPC5F	Drawer will not open	The disc tray would not open because it was hung up on thedisc table. readjustment of the disc table resolved the problem. (disctable height is not specified in the manual. we compared a working unitand found it to be 20mm - base to top of table). -h
SONY	CCDV3	No power up	Unit would not power up, found 5 volts not getting throughwindings of drum assembly. open windings in upper drum.
SONY	CCDV9	Auto focus not working	Auto focus was intermittent, would work at times and timeswould not.
SONY	CDXA20	Unit locks up after a few days	Within 2 to 3 days after installation, unit will lock up. youcannot operate anything. if the unit is removed, it will operate normallyafter a few days. this has happened to 3 units which were installed in achevy pickup. -hq comments: i would suggest
SONY	CDPC50	No loading	No loading function. servicer called me and said plasticshaft holding loading gear (c) was broken off of main frame. this part isnot available. i took the unit home and repaired it as follows: i ob-tained a shaft that had a screw hole on one end and
SONY	HP179	Incorrect motor	The replacement cassette motor has the incorrect shaft size.the pulley will not work with it. i have enclosed the original motor andpulley and the replacement. please look into this and advise. i willneed the motors back also. -hq comments: the motor
SONY	SLHF860D	Error in srevice bulletin no. 27 - csv-2	Service bulletin 27, csv-2 is incorrect. solution statesadding a l.p.f. filter between collector of q653 to ground diagram showsl.p.f. between collector q653 and swd 9v.
SONY	FDL320	Open speaker	No sound.
SONY	BMC550	No part number for pinch roller arm	Arm that pinch roller is mounted on does not have a part num-ber listed in the service manual. see page 105 for parts breakdown. -hq comments: this part is available only as an assembly. part numberx-3690-114-1 will give the entire assembly.