TV Repair: Common Faults and Solutions.

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Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
SONY	SLHF600	Audio flutter/conv. audio/biii	Audio flutter from conventional audio track biii mode only.
SONY	ITA500	Off hook dial tone intermittent	Will not take the callers call. caller gets a busy signal.do not get a dial tone when receiver is picked up.
SONY	WMF80	Intermittent radio	Radio does not work.
SONY	STRGX5ES	Power xformer hum after warm-up	Xformer hums after one hour warm-up.
SONY	MPKM8	Part numbers for release cam and lever assembly	Need part numbers for release cam and release lever assemblyincluding collar, nut, spring and c ring. -hq comments: please refer to service bulletin csv-3 no. 26r.
SONY	SL2700	Replacement brake solenoid does not work	Servicer stated that the new brake solenoid does not work wheninstalled. -hq comments: the plunger for the brake solenoid (included) must be re-placed also when replacing solenoid because it is different from the oldplunger.
SONY	KV1957R	Intermittent decrease in brightness level, leaky c-307	Intermittent decrease in brightness level, looked almost likecomplete loss of (y) in formation. at time of trouble - symptom, the vol-tage on pin 4, ic-301 dropped to about 2 vdc. also, voltages at pins 32,33, 34 dropped to .8 vdc. apparently, dc leve
SONY	WMF100II	Grounding of radio connection board	Unit works only when cassette door is opened. shuts down whenclosed. radio connection board has trace worn and exposed causing it toground in the act of opening and closing cassette lid.
SONY	CFSW501	Battery leaking shortly after installation	Battery is leaking, getting hot and going dead caused by thedc cut-off switch in the ac power plug. this causes dc from the powersupply to go into the batteries.
SONY	VCL0752B	Part number for front and back lens cover	Need part numbers for lens covers (front and back). -hq comments: part numbers are as follows: front = 2-395-025-01please order from kcp. back = 2-395-026-01
SONY	D55	Unit dead	After the unit was checked, found were ic503 was burned anddc to dc converter was bad. unit was repaired. after 30 to 45 minutes itstopped playing. i found the same problem as before with ic503 burned andbad dc to dc converter.
SONY	CCDV4	Green picture	After using the unit on r/p for 30 minutes, picture turnsgreen intermittently on ic-651 dc-dc converter. pin 9 should have 7.7vfound only 4.5v.
SONY	CCDV5	Part numbers	On page 191 of the service manual item 18 and 2 are reversed.if you order x-3712-170-1, you get x-3712-046-1 part. the ccd-v9 manualshows them correctly.
SONY	XR787R	Tape deck switched directions before tape end	Will not play 120 min. cassette to end of tape. single lengthplay ok. 120 min. cassettes auto reverse within 1/4 of end. found ic701clk. freq. (pin 2) to be 10.451 khz.
SONY	SPP110	Ics are hard to remove	The ic components are glued down with a red type epoxy. wecannot remove them easily, if at all, in order to service unit.
SONY	CFSW301	Battery leaking shortly after installation	Battery is leaking, getting hot and going dead caused by thedc cut-off switch in the ac power plug. this causes dc from the powersupply to go into the batteries.
SONY	CDXA20	Will not start	Will not start. spindle motor will not turn. spacer thatholds motor shaft becomes dislodged from board.
SONY	WMF8	Motor part number change	Part number 8-835-133-01 is a motor with a control board.this part number now subs to 1-541-414-11 which comes with no controlboard.
SONY	CCDV8AFU	No control panel part number for complete assembly	Reference number 105 does not include buttons - need completeassembly. -hq comments: please order x-368-677-21 for the complete assembly. aservice bulletin will be issued shortly.
SONY	HVM302	Ic3 on df board is 24 pin, not 28 pin	Hvm-302 service manual shows ic3 with 24 pins, but unit hasic3 with 28 pins.