[TechAssist] Re: update. RCA F36444, ATC113CA1 dead. standby B+ OK no pwr on
- From: "Barry Thompson" <barrystv@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 1 Jul 2005 18:51:27 -0400
I Have one I will email off of the list
Barrys TV
Ottawa
Canada
barrystv@xxxxxxx
----- Original Message -----
From: "al m" <ampm@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, July 01, 2005 6:40 PM
Subject: [TechAssist] Re: update. RCA F36444, ATC113CA1 dead. standby B+ OK
no pwr on
> Is there a manual floating around for these ATC113Ca1s? I just got a
F36650
> ATC113CA1 with water dumped in it. Just in case I need it. Sorry I can't
> help Phil this is only my second One I have run into. Last one clicked 3
> times and flyback fixed it.
> Al Marquardt
> ampm@xxxxxxx
> Al Marquardt Electronic Repair
> 206 W Main
> Girardville Pa. 17935
> ----- Original Message -----
> From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Friday, July 01, 2005 4:12 PM
> Subject: [TechAssist] update. RCA F36444, ATC113CA1 dead. standby B+ OK no
> pwr on
>
>
> >I just replaced the jungle IV01 (TB1253CN), no help. Now I've replaced
> > the jungle, fly,HOT,eeprom,Gemstar...Am I missing anything?
> > Seems there is no "ON" command from the Gemstar module. There are two
> > voltage regulators that are biased on by the Genstar and neither are
> > being done so:
> > Regulator (TO220 case 9 volt) IV02 no output, no input volts.Comes from
> > reg transistor TP340 and it's output is nothing. It's base is biased on
> > by transistor TP531. TP531 gets it's "on" bias to it's base to...> "see
> > gemstar4 P/J 26403 pin 18." I go there, push power and nothing.(I assume
> > with my Fluke I should get a DC on pulse of some kind).
> > Next:
> > 9V reg IC IP360. No volts at input or out.
> > This is fed by reg transistor TP360 's collector. (0 volts at collector.
> > emitter and base both have +16.53 VDC.) TP360 is turned on at base by
> > TP560's coll. output.
> > (TP560 base and coll both about 16.5VDC, Emitter ground) TP560 is turned
> > on by a line at it's base to the gemstar. Schemo note : "see gemstar4
> > P/J26404 pin 9" I have no "on" voltage pulse there either when power
> > pushed. So, two regs that ultimately are turned on by this new gemstar
> > and no output.
> > I've tested all these transistors and none shorted. It seems there is no
> > power on command.
> > I am at a loss. There you have it.
> > Phil Bader
> >
> > Well, I'm officially stumped. This think is dead, no 3 chirps from the
> > horizontal. Only the normal single chirp from the smps at plug in. The
> > smps is up and running.
> > I
> > have changed:
> > Jungle chip IV01,Flyback, HOT, gemstar module, EEPROM, resoldered
> > everywhere. The smps
> > seems OK.
> > I tried the RCA "force on "method.:
> > (There is a procedure to "force on" the set:
> > "Service mode force on method:
> >
> >> From the front of the unit press and hold the menu button, then press
> >
> > and release the power and then press and release the volume up button.
> > If the unit operates, check the error codes." )
> > NOTHING!
> > Help! Of course I've sunk a fortune in it...
> > Phil
> >
> >
> >
> >
> > Made sure the smps was up and OK. Replaced the Flyback, eeprom, HOT.
> > Resoldered the coils aroind the HOT.
> > Went to the Gemstar troubleshooting.
> > Checked ribbon cable BR104-pin 14 for +5.2 volts. It was there OK.
> > Next, check BR103-pins 10 and 12 (clock and data) for +5.0 VDC and 5VPP
> > signal.
> > I have neither.
> > Also said check BR104- pin 12 and 13 for signal when power is pushed.
> > Niether has signal.
> > Either omission I have is indication the manual says "replace gemstar"
> > So, replacing the gemstar is easy but does this cause other
> > complications (like alignments,etc when you replace an eeprom)?
> > My first Gemstar...
> > Phil
> >
> >
> > Plugged in,I have +139 VDC at collector of HOT in standby. I have +5VDC
> > at I/R detector. Either pushing power button, or with remote, no
> > response. HOT good, smps seems OK.
> > Resoldered LL04 coil to HOT base (like the CTC203), resoldered fly and H
> > drive transformer.
> > Not a peep when power pushed. Not the "three strikes" chirps. Nothing.
> > Phil Bader
> >
> > --
> >
> > Philip Bader
> > Jan Phyl TV Inc. (estab. 1976)
> > 3420 Recker Hwy. Winter Haven, Fl. 33880
> > Fax (863) 299-8821
> > email: tjanphyl@xxxxxxxxxxxxxxx
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > rr.com
> >
>
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