[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 19:36:32 +0100
I tried another EPROM from a CTC177AA2 chassis, it didn't work, but if I
remember correctly that TV had a system control problem at the time,
probably the EPROM....LOL.
I'm sure I'll find one. If anyone has a known good EPROM to send my way,
don't be shy. BTW are these things preprogrammed?
David Lessard
Alexandria, Ontario. Canada
mr_fixit@xxxxxxxxxxxx
-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of tvservice
Sent: Thursday, July 29, 2004 12:29 AM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: RCA TV - F25652BL - CTC187AB - Won't Turn ON -
FOLLOWUP
Sorry I'm in "Big D" Dallas Texas
try any ctc177 or 187 eeprom for test it will work for test
Robert
tvservice@xxxxxxxxxxxxx
H & H Electronics Inc
----- Original Message -----
From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, July 28, 2004 12:59 PM
Subject: [TechAssist] Re: RCA TV - F25652BL - CTC187AB - Won't Turn ON -
FOLLOWUP
> I don't have Chipper Checker but I will get my hands on another good
> EPROM. Do you know where I can get a pre-programmed EPROM? In Canada,
> near Ontario would be nice.
>
> 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 11:29 PM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: RCA TV - F25652BL - CTC187AB - Won't Turn ON
-
> FOLLOWUP
>
> If the data never stops after AC plug in the EEPROM is defective.
> The micro is asking for the data from eeprom until it answers it keeps
> sending data
> Change or reinitialize the eeprom with chipper check
> 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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