[TechAssist] Re: RCA TV - F25652BL - CTC187AB - Won't Turn ON - FOLLOWUP
- From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 28 Jul 2004 19:00:16 +0100
I haven't unsoldered any of the keypad switches yet. I had to full my
stomach and now I'm too tired. Funny how that works, I will check out
the switches tomorrow.
Again thanks,
David Lessard
Alexandria, Ontario. Canada
mr_fixit@xxxxxxxxxxxx
-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of tvservice
Sent: Wednesday, July 28, 2004 11:31 PM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: RCA TV - F25652BL - CTC187AB - Won't Turn ON -
FOLLOWUP
Forgot to ask if you tried unsoldering or disconnecting keypad switches?
Robert
tvservice@xxxxxxxxxxxxx
H & H Electronics Inc
----- Original Message -----
From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, July 28, 2004 11:49 AM
Subject: [TechAssist] Re: RCA TV - F25652BL - CTC187AB - Won't Turn ON -
FOLLOWUP
> FOLLOWUP
>
> OK, just got back to this dog today.
>
> I have (5V) data activity on pins 5 and 6 of EPROM. Data is always
> active, it never stops after AC plug-in, and this may indicate a bad
> EPROM. Also I'm not too sure about U3101-5 (KD1 pin), schematic says
> voltage should be 0V; I'm reading 5V off the pin (disconnected from
the
> PCB). I can see how the panel button matrix works for CH UP, CH DN and
> MENU but I can't make sense of POWER, VOL UP and VOL DN. How does
> U3101-5 (KD1 pin) work for those buttons that don't seem to work?
> Perhaps I have two problems here.
>
> Looking for input on this as I've never done a system control problem
> before.
>
> Thanks techs,
>
> David Lessard
> Alexandria, Ontario. Canada
> mr_fixit@xxxxxxxxxxxx
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of tvservice
> Sent: Wednesday, July 21, 2004 8:46 PM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: RCA TV - F25652BL - CTC187AB - Won't Turn ON
>
> look for +5 volts on pins 5 and 6 of eeprom if not there or low,
replace
> it
> if ok at pin 8. If +5 ok all pins look for data momentarily on pin 5
> while
> applying ac power
> Robert
> tvservice@xxxxxxxxxxxxx
> H & H Electronics Inc
>
> ----- Original Message -----
> From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, July 21, 2004 8:52 AM
> Subject: [TechAssist] RCA TV - F25652BL - CTC187AB - Won't Turn ON
>
>
> > Hey Gang,
> >
> >
> > I need a troubleshooting chart for this TV, a schematic would also
be
> > appreciated, any tips out there? Fuse and HOT good, SMPS fires up
when
> > TV is plugged in. I use to have lots of information on the CTC187
> before
> > my other computer crashed. What did I learn, back things up on to
CD!
> >
> >
> >
> > Thanks,
> >
> >
> >
> > David Lessard
> >
> > Alexandria, Ontario. Canada
> >
> > mr_fixit@xxxxxxxxxxxx
> >
> >
> >
> >
> >
> >
> >
>
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