Question about Thomson 30LCDB03B 30 in. HDTV

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Thomson TV I have replaced a defective Vrt. Amp TDA8178F I.C. All in put Voltages are O.K. But there is only a Hor. Line. At pin no.1 I get about 500mV pp, saw tooth wave. Can some one be kind to advice me. ThanksNb:Model Thomson TV  55DF71 EX Suraweera

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  • GloryMe Nov 15, 2007

    Please do anyone know where I can download a free service manual for Thomson RP52UK 52" or 50" Plasma TV. Problems with colour setting or may the convergence PCB. How to configure the combinations in the PCB.

    Your help will be appreciated.



    From GloryMe.

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SOURCE: COD PIN FOR Tv-Thomson 21DC320, Tipe 507RG/ITC008

Sostituire la 24Wc08P con una nuova. Substitute 24WC08P with a new one. In this model it's very stressed and since it's a flash memory it has a limited number of writes. Ciao

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My Panasonic TC-21Z88RBN doesn’t displays the total picture vertically ,when the picture is display it like not in the center of the screen sum of it is disappear in the bottom


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Your TVs vertical output section has the fault. You just open your TV after disconnecting it from the AC mains wall socket, and locate the vertical output section. This section uses an Ic marked as part [IC 401] on the board and its number is LA7840. Just look for any loose soderings around its components legs, and the solderings at the IC legs, which has 7 of them. The IC stated above will be screwed onto a heatsink to radiate heat out of it when it works.
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