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Re: panasonic color tv model # ct-13r38sg
The problem here is that the vertical IC either has bad connections or is defective. Look for a small flat IC with about 11 pins attached to a heat sink. It will be marked LA7837 or something similar. Try resoldering the pins on the IC first. If that fails to resolve the problem replace the IC.
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been a long time since fixed an crt tv. but if you have a stand by light the problem on this model is the control chip if remember right it sits on the left side near to the front. think its an 8 pin chip. these just go and it will not turn on. these chips are easy to get hold of and are cheap. you just need to remove it and replace with a new one. and the tv will work again. its not on the power board but is controlling the power start up. if there is no stand by light its a longer problem to solve. it could be a number of problems. would need to know if any problems happened before the tv did not turn on.
it sounds that have problem in the chroma board ( video board ) a small board that hooked up in the neck of the picture tube. if the color is greenish the cause is dead in red video driver transistor or open resistance. hope this can help good luck.
no there may be loose contact or dry solder in circuit board attached to tube..ie video driver section ..resolder all the solder joints cleanly...&also resolder the long ic ie chroma ic...u can find where the problem is by gently tapping the main board or video board by a tooth brush when tv is on. if the color changes by tapping u can get the loose contact..have a nice day
With unit on and no cassette inside, hold the rec/time button on the front of unit for 7 seconds. CTV's Lock Mode Only the on/off button will work,the others have no effect. Press the action and power buttons at the same time on the front of the set for 10 seconds or so.
LCD TV's, Lock Mode If customer forgot Parental Lock Code, unit must be re-initialized. Press and hold the Volume down button on the front panel, press the OK button on the remote for 5 seconds.
The solder joints on the degaussing thermistor have cracked or the thermistor itself has opened, and the CRT is heavily gaussed. You can degauss (demagnetize) the picture tube and the colors should return to normal, but the thermister should be resoldered or replaced.