tv GRUNDIG ST84-796/9 TOP LOG SOUND INTERMITENT HELP

[taban]

This tv its a grundig st84-796/9 chasis 29701-089.16, i´m not sure but i think its cuc 6365 chassis. its a 33". the tv start up with no sound and the sound apears at 10 minuts aprox. i thougt that was the main interrupt, because have the temporary stand by contact. but its ok. It have another problem wiht the image, apears very dark and if i adjust the screen voltage turns ok, but if i power off the tv and power on again, the screen turns again dark and if i adjust the screen pot became good again, the transformer of highvoltage (HR) its changed. thankdssssssss to everybody.
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[JD]

Hello!

Try to change the main switch this give many problems in some models tv start without sound,if the tv has the ic TDA8214B problable this is the cause for the image desapear,but if has the MSP 2410 Nicam processor problable this is the cause of all problems of the tv (no sound,block tv,no image many stupid problems before die and stay without sound)

Good luck
JD

[taban]

thank you i will try what you say to me and i will tell you. thanks again.
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