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Article #380Re: Manuals for Blaupunkt TV model BT 70-26 VT, chassis FM550.20
From: Franc Zabkar
Date: Tue, 08 Jul 2008 07:29
Date: Tue, 08 Jul 2008 07:29
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On Tue, 08 Jul 2008 09:15:18 +1000, Franc Zabkar <fzabkar@iinternode.on.net> put finger to keyboard and composed: >Does anyone have a user manual for a Blaupunkt TV model BT 70-26 VT? > >Service manual for Blaupunkt TV chassis FM550.20, or circuits for the >audio section (IF and output)? I think I've found a service manual. The Blaupunkt chassis appears identical to a Grundig CUC6330 chassis: http://www.eserviceinfo.com/download.php?fileid=1168 http://www.eserviceinfo.com/download.php?fileid=1169 The uP is labelled "CUC6330PAL.02". Unfortunately the circuit diagram for the PAL IF Amp PCB (29504-102.57) is mentioned but not shown. :-( The fault I'm seeing is no audio. It looks like a problem with the TDA6612-5 stereo sound IC. The two TDA7245A amps look OK. The only other possible candidate appears to be a Telefunken U2840B FM IF amp and demodulator for which I have no data. I have disconnected the I2C pins from the TDA6612-5 chip to see if the TV behaves any differently, but it does not. I still need an owner's manual because the remote's menu system is not intuitive, at least not to me. I'll try the AV inputs when I get a SCART cable. - Franc Zabkar -- Please remove one 'i' from my address when replying by email.
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