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Re: TV won't turn on.
The horizontal (line) deflection circuit appears to be at fault. This circuit is responsible for the generation of high voltage (tension) that also drives many of the secondary circuits such as the vertical drive, tuner and sound stages. While the main power supply itself is running, a failed secondary stage will give the symptom that you've mentioned. Replacing the line-output transistor is likely to solve the problem. However, this advice is given with the understanding that you are familiar with TV repair. Otherwise please refer servicing to a qualified tech.
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usually after 4 or 5 yrs EHT ( transformer that supplies voltage to tube ) becomes weak - then TV won't get ON.. means no picture no sound ..but LED blinks - (sometimes '' garrrr '' like sound comes...that is from EHT )........ in some TVs along with EHT 1 or 2 components like resistor, transistors, etc will also gets deffective ............... so solution is TV circuit board has to be checked to find whether only EHT is deffective or other components are also deffective - price of EHT will be between Rs.250 (US$ 5) to Rs.600 ( US$ 12) ........iam from bangalore (09986222774, email@example.com ) .....i don't have any idea about EHT component's price & service charge in your area........this problem cannot be solved by user unless user is a technical person having idea about components (resistors, transistors,diodes,...etc..), having multimeter , soldering iron & other tools...so my suggestion call TV service engineer.............TUBE IS FINE
SYSTEM RESET If the TV will not respond to either the remote control or the front panel controls and/or will not power Off, press the SYSTEM RESET button with a pointed item like the end point of a paperclip. The TV will turn Off and the TIMER light will flash quickly for about one minute. When the TIMER light stops flashing, you may turn on the TV again. Changes you made the last time the TV was On before you used the SYSTEM RESET button may be lost, however, the changes you made previously are not lost. POWER/TIMER Indicator The green light is a multi-function indicator. This light will flash rapidly for about one minute each time the TV is plugged into the wall electrical outlet, when power is restored after a power failure, or using the SYSTEM RESET button. Do not attempt to turn on the TV again during this period. Wait for the flashing to stop and the light to turn off, before attempting to turn the TV on. While the TV is powered on, the light illuminates steadily. If the TV has been programmed to turn on automatically using the Timer feature,
GO TO MENU, THEN SETUP, SCROLL DOWN TO TIMER AND MAKE SURE IT IS ON 0 (ZERO) MIN. SOUNDS LIKE ITS PROGRAMMED TO GO SLEEPAFTER A CERTAIN TIME. THIS TV ALSO CUTS OFF AUTOMATICALLY IN 15 MIN. IF ITS TUNED TO A VACANT CHANNEL( NO PICTURE).