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Make	Model Ch.	Symptom	Problem Solution	Solution
Hitachi	C2558TN G8Q	This set would not switch automatically into A/V mode when a video or any other equipment was connected via the scart	The set could manually be placed into A/V from the tv's front end controls. The cure was to replace ZD301 ZTE251. I assumed it was a 2V but as i had none in stock i tried a 2.7V zener which worked perfectly. It's located near the scart socket
Proline	28N1 F19	Int will lose eprom settings, ie Height etc	The Crt base was arcing internally
Bush	11AK19	Lack of width / no ew control	The east west fet Q603 BUK444-200A was short and R629 2.7ohms fusible was open, replacing both cured the problem. 2 Values for this component: 2.7 ohm in 90 degree crt's ... 27ohm in 100 degree crt's. 32" models value is 56 ohm @ 1 watt safety
Grundig	CUC3500	No sound AV-Mode sound ok	Replace IC2210 U2829
Bush	34BKB 3463NTX/4400	Dead / excessive width and e/w bowing	Capacitor CL15 was dry jointed and transistor TL4 was s/c, also CL18 22uF, 250v was stressed, after replacing these components had excessive width and e/w bowing, the TDA8350Q field ic turned out to be the culprit
Sony	KV20TR22	Intermittent reception on VHF / UHF	Resolder tuner especially the around the tuner I.C
Sharp	TV14 Cinema Borg	When set switched on "ENTER YOU LOCKCODE" appears on screen, customer had forgotten the lock code	Replaced the Microprocessor64 pins
Philips	14GR1221 GR1AX	Procedure to enter or exit hotel mode child lock	Put the set on programme 38, press either store and pr - to lock and store and vol - to unlock, or, press pr - and vol + to lock and unlock, press buttons on the set not remote
Philips	GR2.2AA	Dead, no line oscilation, power supply and line output stage are OK	Check / replace C2549 390 or 470nF / 400V and C2545 1n5 or 1n2, 2000v
Philips	GR2.2AA	Does not work after LOT has been changed	Check / change D6561 also change the TDA2579B if there are any sync problems
Sharp	66FW53H	Dead - Neon lit	R713 and R714 560K high or o/c
Sharp	66FW53H	Dead - neon lit ... another fault!	Check the BZW04145 diode across C720, if short circuit, replace and also replace opto-isolator IC704 MOC8106 and IC706 TL431 voltage reference. You can put an 817 opto-coupler in diagonally
Mitsubishi	BDS29S 11AK19 PRO	Picture is black with faint green retrace lines, sound etc. ok	Changed TDA6108JF on CRT board, and nearby 10uF electrolytic which looked damaged. Fixed fault. A resistor next to the capacitor had been changed before but tested okay this time
Samsung	CX5012	Volume low, even at maximum setting	Replaced IC601 TC4066BP close to IF can
Philips	GR1AX	Sometimes does not start up from cold, but starts well from power off or standby after a few minutes	After checking all PSU components and consulting many colleagues, casually the tip of my iron touched the body of T2628 BF423 and the set started. After more then 20 attempts, I realised that this transistor became intermittent when cold
Philips	Various	Sound but no picture	Have found on some Philips	s if they are older then 15 years that a 2.7r resistor close to the HT transformer goes open, resulting in sound but no picture
Sharp	66FW53H	Colours ramping, poor greyscale	Replace IC1002/3, Set will need reprogramming afterwards
Jvc	AV25SD4EK	Standby LED changes from Red to Green as normal, but no picture or sound. Set appears not to come out of standby	Check for dry joints on the line output transformer tags. Resolder all as a precaution anyway
Seg	CTV7951GB	Dead set	Check the following caps, C828 1000uF, 16v, C817 1000uF, 16v and C848 100uF, 25v. The caps take out the following components in the power section. Chopper FET Q802 2SK2545 equivalent BUZ901A need to isolate BUZ901A from heatsink, R817 2.2ohm/5W, D805 BA159, D802 IN4007 and D801 IN4007
Samsung	CS3339Z	No picture No sound	Faulty IC TDA6107q on crt board