Mitsubishi CT-2893am vertical fault

KJS 20 years ago

I'm visiting friends who have one of these TV's with a flat horizontal line. It was in storage for 12 months... then 10mins after switch on it developed the fault. I've only got very basic tools and an analogue mm, and no circuit diagram either :(

I'm not sure exactly what components are associated with this part of the circuit. The HV caps C906, 915 and 925 check out Ok as far as leakage and checked a few low value resistors.

A burnt out track between C956(neg) to D556(anode) has been repaired at some other time. No history on that fault.

If anyone has had any experience with this fault in , a standard list of components worth testing or replacing or any other clues... it'd be much appreciated.

Thanks in advance.

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jwhmca 20 years ago

First of all... Sound like a Pro... Say My T.V. Lacks Vertical Deflection... then replace the 100uf caps in vertical cir.

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Sky 20 years ago

You may just need to solder the vertical IC, but check the electrolytic capacitors arond the IC, even if the IC only needs soldering. Sky

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Asimov 20 years ago

" snipped-for-privacy@aol.com" bravely wrote to "All" (06 Dec 05 21:07:59) --- on the heady topic of "Re: Mitsubishi CT-2893am vertical fault"

jw> From: snipped-for-privacy@aol.com jw> Xref: core-easynews sci.electronics.repair:350581

jw> First of all... Sound like a Pro... Say My T.V. Lacks Vertical jw> Deflection... then replace the 100uf caps in vertical cir.

Also any small value electros (1uF-2.2uF) related to the vertical circuits.

A*s*i*m*o*v

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KJS 20 years ago

Thanks all for the input. I'm not actually a TV tech, but electronics is electronics. BTW - I wanted to sound like a pro, but too long around customers... I figured it was just a broken wire / blown fuse / needs a clean... it won't take long to fix because it was working this morning...it probably just needs a new one of those big globes in the front. :)

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