[TechAssist] Re: RCA M#D52w19 Chassis ITC222 Shuts down, tries 3 times

  • From: "Wayne Vanaman" <Wayne@xxxxxxxxxxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Thu, 26 Feb 2004 10:47:32 -0600

My expierence:

The set should power up with the CRTs disconnected.

Disconnect the H & V yokes
Disconnect BW001 & BW002
Disconnect BA010 (audio)
Disconnect BP611 to convergence PS.

If the set powers up reconnect one at a time trying to turn on the set, and
troubleshoot that circuit that caused the shutdown.
If the set will not power up when these are disconnected the trouble is on
the small signal board.

I derived this from the Circuit Overview document, page 5-8.  When I called
the teck line and told them what I did they said that was what they were
going to suggest.

The small signal board is part number 264120.  Part not available.  I
ordered my first one last year, it still isn't here.

Direct the customer to RCA customer relations.  :-)

Wayne Vanaman
Omega Electronics
6904 W Fairfield Dr
Pensacola, Fl.  32506-3310


850-456-5995 voice
850-458-6369 fax

----- Original Message ----- 
From: "Mouton's Electronics" <moutons@xxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, February 26, 2004 10:03 AM
Subject: [TechAssist] RCA M#D52w19 Chassis ITC222 Shuts down, tries 3 times

> Hi everyone
> This set has a leaky red CRT and somehow leaked on the Red Drive board and
the Blue Drive board. Both have burn marks on them and I disconnected both
boards leaving just the green. My question is can this chassis operate with
just the green board connected or with out any of them connected?  I have
tried both ways and the set starts up then shuts down, it retries 3 time.
> Another problem, someone suggested changing the small signal board. First
I would like to check the error codes but I can't find the service connector
to connect chipper checker. Chipper lists this chassis as one it will
communicate with but doesn't tell you a thing about where to connect it, it
only tells what interface to use to connect to the chassis and I haven't
found a similar plug anywhere. How are we suppose to download the eeproms
and reload into another ssb? Guess we are expected to realign the whole
chassis, that's another whole day.
> Also, there is no trouble shooting procedure on the thomsonnetwork for
this chassis so if anyone has a trouble shooting procedure to determine if
the SSB is at fault please forward it to me. I have never changed this
module before and don't want to spend $300 for a new one, change the CRT,
and 2 crt drive boards and still have a problem.
> Jason
> Moutons Electronics
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