TV Repair: Common Faults and Solutions.

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Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
SONY	CCDV9	No auto focus	No auto focus. manual focus slow and hunts.
SONY	CDXR88	No tuner operation	No am or fm. (no scan stop. manual tune gives no backgroundstatic, or audio at all). found no output from q17 its base was 0.57vdc.
SONY	CCDM8SP	Vf jack part number	No p/n listed in manual. -hq comments: p/n is 1-562-183-00.
SONY	KV2092R	Bottom half of picture distorted, c1504	Top half of pix was fine, bottom half was stretched and dis-torted. scopes of pin 3 or 6 of ic1501 shows rf riding on b+. foundc1504 had changed value - replaced problem cured.
SONY	FD42A	No pix, replaced q802, d802, ic601 and q602	1. no picture. 2. no high voltage. 3. bad keystone.1. weak drive signal on q801 base.2. open q802.3. no drive of pin 5 (ic601) open q602.
SONY	CDP701ES	High frequency whistle in one channel	High freq. whistle in one channel. found cold solder joint onlpf ground tab. this problem could occur on lpf401 effecting other side.
SONY	CDP203	Wrong part	The part number for the main board is incorrect.
SONY	SLHF1000	One weak or no video head output	Original problem was one video head tip broken. replaced withnew disk assy then had symptom of dirty or clogged video heads unable toclear, changed head disk assy. same results, (bis worked fine) changedentire drum assy. same results, changed head swi
SONY	KPR4110	No picture and no sound, resoldered the flyback	No picture and no sound.
SONY	SPP110	Id code is not sent to handset	Id code not sent to handset. test mode showed no problems.when handset was placed on base unit, id code would not be sent to handset.
SONY	ITK300	Time indicator not working, only color marker	Only color marks on indicator tube are illuminated. checkingvoltages, found pin 14 of ic401 to be 13v. checked resistance across d401and reading was zeroΩ. further resistance checks found c401 shorted.
SONY	MPKM8	Part number for mic cable	The elusive mic cable p/n is now known, and are on order fromjapan. -hq comments: this p/n was given to us last year, but was unavailable atthat time. we have confirmed with tokyo that this part is now available.ten pieces will be sent to our departmen
SONY	SLHF300	No tuner, no channel display	All functions ok, except for the tuner being inoperative andno channel display. unit stuck in line mode.
SONY	CCDV5	Viewfinder crt	The original viewfinder is using a crt made by nec with gener-ic number on tube c1m40p45. the replacement tube part no. 1-546-061-11 aslisted in service manual is made by matsushita gen. no. m01jpg5wb (seeillustration): the tube in fig. 1 uses board no
SONY	CCDV110	Vertical smear from bright object	Have had two units come in for severe vertical smear frombright object. when camera is rotated, smear remains vertical. foundsmear caused by dt61.
SONY	KV2780R	Poor vertical, replace r-1503 and adj rv-505	Unit had poor vertical interface, very noticeable about 5 in-ches down from the top of screen. waveform at pin 2, ic-1501 displayeddistortion. found r-1503 to be open. replacement did not cure problembut i also had to readjust rv-505, vertical bias.
SONY	KV2093R	Intermittent brightness shift, replace rv-707 sub brt	Complaint was intermittent shift 17 brightness level. al-though the sub-brightness control checked ok, replacement eliminated thecomplaint. this the third set of this type that i have had this problemwith this control. sometimes spraying coolant on th
SONY	XR55	Part number incorrect in service manual	The part numbers listed above are in xr-55 service manual ascorrect p/ns for switches in this unit. servicers called and statedswitches were different than what was in the unit.
SONY	XR17	No output	No output. found q307 shorted b-c (factory sub.).
SONY	D10	Intermittent starting and poor tracking	There is very dirty eyepattern. the servo pc board is dis-connected from chassis ground, the mounting screw is slightly loose.