[TechAssist] Re: RCA CTC177AG - Sort of Dead
- From: "Wayne Vanaman" <Wayne@xxxxxxxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 3 Aug 2004 17:52:45 -0500
Add in an extra cap across the HOT. This will lower the peaks. If the set
is shutting down either because it is off freq and the HV is going to high
this will take care of it. You can then use your scope to set the H freq in
the menu.
Wayne Vanaman
Omega Electronics
6904 W Fairfield Dr
Pensacola, Fl. 32506-3310
Wayne@xxxxxxxxxxxxxxxxxxxxx
WWW.PensacolaTVRepair.Com
850-456-5995 voice
850-458-6369 fax
----- Original Message -----
From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, August 03, 2004 10:28 AM
Subject: [TechAssist] RCA CTC177AG - Sort of Dead
> Hi Techs,
>
>
> On plug-in I can hear the SMPS fire up, I can hear the HV start but then
> shut-down occurs, no horizontal drive, nothing but the standby voltages.
> Turning up the screen level shows no retrace lines. I'm thinking maybe
> the x-ray protection is kicking in but the +B never exceeds 130VDC
> before shut-down. I've checked the horizontal driver transformer and
> L401 coil for cold solder, it's OK. Something else is shutting down the
> TV. Is there a way of disabling the x-ray protection circuit for test
> purposes? Thanks in advance techs.
>
>
>
> David Lessard
>
> Alexandria, Ontario. Canada
>
> mr_fixit@xxxxxxxxxxxx
>
>
>
>
>
>
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