TV Repair: Common Faults and Solutions.

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Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
SONY	CDX7540	Complaint of skipping but unit is dead	Complaint of skipping but unit is dead. found q-414 shortedand badly burned on main pc board. this is the fourth unit i have seenlike this. could this be an installation problem?
SONY	SLHF900	No part number part of ud assembly	What is part number of the item that number 328 fits into?see page 185 of the service manual. -hq comments: the part number for the ud arm is: 3-691-650-01.
SONY	D66	No sound on right channel line out	The line out jack (j-301) was defective. the right channelpin on the line out jack was cut too short. this was a new part from kcp.
SONY	KV20EXR10	At turn-on picture flashes several times, adjust g2	At turn-on after about 10 seconds the picture flashes on/offseveral times, then stabilizes.
SONY	KV27XBR10	Dead set, replaced ry-601 ("f" board)	Dead set. power relay coil open. should measure about 255Ω.
SONY	KV27HSR10	Singing yoke, replaced yoke. see service bulletin 114	Replaced singing yoke. -hq comments: please refer to tvp service bulletin number 114. newyoke part number is 1-451-275-41.
SONY	STRAV1000	Speaker protection always on	The speaker protect circuit is always engaged. the problemappears to be related to the power supply. we noted that the schematicshows two separate grounds. in fact there is about 3 volts differencebetween the two. when the two grounds are tied togeth
SONY	EVC8	Recording color is bad	Unit was recording with no green component (color bar).
SONY	CVM1900	Very weak vertical hold	Very weak vertical hold and appeared to also have a horizontalsynch problem (another shop replaced ic-501, problem not solved). spenttime checking dc voltages, waveforms around ic-501, checked ok. lookedcarefully at waveform on pin 24 of ic-501, vertic
SONY	CPD1304	Mistake in s/m "d" board	Service manual shows pin 6 of ic-901 on the d board to beconnected to the 120 volt line. this is not true. there should be noconnection. fuse in the 120 volt line is missing in the s/m. has therebeen a correction issued? -hq comments: tokyo will iss
SONY	KV27XBR60	"h" board and ic-51 have been changed, see supplement 4
SONY	KV32XBR65	H board and ic-51 change, covered in supplement no. 4	H board and ic-51 have been changed. -hq comments: there has been a change in the h board and with ic-51.service manual supplement number 4 has been issued to cover these changes.h1 board 1-629-621-23ic-51 8-741-100-62 cbx-1618-51
SONY	KV32HSR10	Vertical lines in picture, service mode adj "ref" set to 1	Three to four retrace lines are visible at the top of thescreen. they do not look like ordinary retrace lines, but are of solidred, blue, or green colors.
SONY	KV32XBR65	Vertical lines in picture, ref mis adj, also check r-517	Three to four retrace lines are visible at the top of the screen. they do not look like ordinary retrace lines, but are of solid red, blue, or green colors.
SONY	KV27XBR15	New h board, refer to supplement number 4	H board and ic-51 have been changed. -hq comments: there has been a change to both the h board, and ic-51.service manual supplement number 4 has been issued to cover thesechanges.h-1 board 1-629-621-23cbx-1618-51 8-741-100-62 ic-51
SONY	KV32XBR15	Rgb vertical lines in pix, adj. "ref" in the service mode	Three to four retrace lines are visible at the top of the screen. they do not look like ordinary retrace lines, but are of solid red, blue, or green colors.
SONY	KV32XBR10	Vertical lines in picture, adjust "ref"	Three to four retrace lines are visible at the top of thescreen. they do not look like ordinary retrace lines, but are of solidred, blue, or green colors.
SONY	KV32XBR15	H board and ic-51 have been changed, refer supplement # 4	H board and ic-51 has been change. -hq comments: h board has been changed to the h1 board (1-629-621-23).there has also been a change in the sensor ic, it has been changed to p/n8-741-100-62 (cbx1618-51). please refer to service manual supplement - 4fo
SONY	KV27HSR10	Horizontal rgb, lines in picture, check r-517	Three to four retrace lines are visible at the top of the screen. they do not look like ordinary retrace lines, but are of solid red, blue, or green colors.
SONY	KV27XBR65	Rgb vertical lines top of picture, see tvp sb # 76	Three to four retrace lines are visible at the top of the screen. they do not look like ordinary retrace lines, but are of solid red, blue, or green colors.