[TechAssist] Re: RCA TV - F25652 - CTC187AB - Won't Turn ON - FOLLOWUP
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 29 Jul 2004 00:17:45 -0400
If the tuning parameters are all 31 it will work but not right. If you can't
get the original settings I use the settings I saved from all the
CTC187AB's. That'll be closer.
Al Marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message -----
From: "Old TV Man" <mebonnell@xxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, July 28, 2004 8:06 PM
Subject: [TechAssist] Re: RCA TV - F25652 - CTC187AB - Won't Turn ON -
FOLLOWUP
> I have been using pre programmed EEPROMS from Dalbani and seldom ever
> had to make any adjustments.
>
> Max Bonnell
> Bonnell TV
> Robinson, IL
>
>
> Sender: techassist-bounce@xxxxxxxxxxxxx From:
> lpoffen@xxxxxxx(Larry=A0Poffen) Date: Wed, Jul 28, 2004, 6:55pm To:
> techassist@xxxxxxxxxxxxx Subject: [TechAssist] Re: RCA TV - F25652BL -
> CTC187AB - Won't Turn ON - FOLLOWUP Reply=A0to: techassist@xxxxxxxxxxxxx
>
> They are programmed to the center of each range. (most of them anyway)
> =A0 you
> have to adjust to your correct parameters.
> =A0=A0=A0=A0Larry
> Larrys TV Service
> Broken Arrow OK 74011
> phone 918-455-1041
> Fax 918-451-4485
> e-mail lpoffen@xxxxxxx
>
> ----- Original Message -----
> From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, July 28, 2004 1:36 PM
> Subject: [TechAssist] Re: RCA TV - F25652BL - CTC187AB - Won't Turn ON -
> FOLLOWUP
> 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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