[TechAssist] Re: RCA P52754AT/CTC178 LB discrepency on C4407

  • From: walter wood <wwood_38478@xxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Tue, 5 Feb 2002 07:27:14 -0800 (PST)

Thanks Gary; The cap in this set is definately a
.22mfd. It is probally bad, as it has a small bulge
on the side.
There are other problems however, namely a cooling
fluid leak all over that area. I doubt that the
customer will ok my estimate.
I have been told by another list member that this
repair CAN be reliably done, but it takes a lot of
time.
I've never had one of these before, though I've
certainly heard about this problem through the
lisis.
Thanks  Walter
--- Gary McCartney <number63@xxxxxxxxxxxxx> wrote:
> 
> I have an actual RCA service manual for CTC178
> projection set. The
> service manual doesn't say it's for CTC178 L but
> thats what I ordered
> when I ordered it. The chassis listed is simply,
> CTC178.
> 
> There are 2 part numbers for C4407 in the parts
> list: 
> 
> 227080, poly cap 0.74uF, 250V
> 
> 231174, poly cap 0.94uF, 250V
> 
> Both these parts have an astrick (*) indicating
> they are safety
> components and not to be subbed. 
> 
> I checked on my schematic and found this cap
> shown as 0.94 uF. It is in
> the pincushion correction circuit. I would get
> the one that matches the
> original part, and if you can't read the value,
> get both parts, then try
> the 0.94 uF first. If pin cushion can't be
> adjusted properly, then try
> the 0.74 uF. Also check C4406 2.2uF 200V ,
> CR4408, and R4407 2200 ohm
> 3W.
> 
> If you need a portion of the schematic, I'll scan
> it for you.
> 
> Hope this helps. 
> 
> 
> Gary McCartney
> 
> McCartney Electronics
> 7134 Fife Rd, RR 7
> Guelph Ontario Canada N1H 6J4
> Fax: (519)821-1530
> email: number63@xxxxxxxxxxxxx
> 
> 
> 
> 
> walter wood wrote:
> > 
> > Wayne; I didn't see one either. I looked up the
> > model no. It is listed. Walter
> > --- Wayne Vanaman <Wayne@xxxxxxxxxxxxxxxxxxxxx>
> > wrote:
> > >
> > > I don't see a ctc178LB chassis listed in
> > > PartsFinder.
> > >
> > > Wayne Vanaman
> > > Omega Electronics
> > > 6904 W Fairfield Dr
> > > Penacola, Fl.  32506-3310
> > >
> > > 850-456-5995 voice
> > > 850-458-6369 fax
> > >
> > > Mailto:Wayne@xxxxxxxxxxxxxxxxxxxxx
> > > WWW.PensacolaTVRepair.Com
> > >
> > >
> > > ----- Original Message -----
> > > From: "C&W Electronics"
> > > <c_w_electronics@xxxxxxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Monday, February 04, 2002 4:52 PM
> > > Subject: [TechAssist] Re: RCA P52754AT/CTC178
> LB
> > > discrepency on C4407
> > >
> > >
> > > >
> > > > Walter,
> > > > I would replace the cap with the same value
> > > that was in the set. (That is
> > > if
> > > > it is defective.) The other values are for
> > > different screen sizes. All
> > > > manufactures do the same thing. Unless you
> have
> > > the EXACT diagram for the
> > > > set you are working on, you may get the
> wrong
> > > part by depending on
> > > > partsfinder, or even when calling RCA's
> Tech
> > > line.
> > > > Paul W
> > > > C&W Electronics
> > > >
> > > >
> > > >
> > > > From: walter wood <wwood_38478@xxxxxxxxx>
> > > > Reply-To: techassist@xxxxxxxxxxxxx
> > > > To: techassist@xxxxxxxxxxxxx
> > > > Subject: [TechAssist] RCA P52754AT/CTC178
> LB
> > > discrepency on C4407
> > > > Date: Mon, 4 Feb 2002 14:07:23 -0800 (PST)
> > > >
> > > >
> > > > Looking in PartsFinder for the part number
> for
> > > > C4407 in this set and hit the wall.
> > > > WinsTips gives this cap as .22mfd @ 100v.
> > > > That is exactly what is in the set.
> > > > RCA's partsfinder gives 2 part numbers, for
> > > C4407
> > > > 227080==.74mfd @ 250v
> > > > 231174== .94 mfd @ 250v
> > > > Can anyone shed ANY light on this
> subject???
> > > > Thanks  Walter
> > > >
> > > > =====
> > > > Walter Wood
> > > > Future Tech Home Center
> > > > 2786 Hwy. 43 N.
> > > > Lawrenceburg Tn. 38464
> > > > 931-829-3337
> > > > Fax 931-829-4044
> > > > mailto:wwood_38478@xxxxxxxxx
> > > >
> > > >
> > >
> >
>
__________________________________________________
> > > > Do You Yahoo!?
> > > > Great stuff seeking new owners in Yahoo!
> > > Auctions!
> > > > http://auctions.yahoo.com
> > > > ------------------------------------------
> > > > Make your TechAssist database better!
> > > > Submit Repair Tips here:
> > > http://www.tech-assist.org/secure/tip/
> > > > ------------------------------------------
> > > > To UNSUBSCRIBE your email address, click
> here:
> > > >
> > >
> >
>
mailto:techassist-request@xxxxxxxxxxxxx?subject=unsubscribe
> > > > Or send a BLANK email with unsubscribe in
> the
> > > > SUBJECT field to the address above.
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> >
>
_________________________________________________________________
> > > > Chat with friends online, try MSN
> Messenger:
> > > http://messenger.msn.com
> > > >
> > > > ------------------------------------------
> > > > Make your TechAssist database better!
> > > > Submit Repair Tips here:
> > > http://www.tech-assist.org/secure/tip/
> > > > ------------------------------------------
> > > > To UNSUBSCRIBE your email address, click
> here:
> > > >
> > >
> >
>
mailto:techassist-request@xxxxxxxxxxxxx?subject=unsubscribe
> > > > Or send a BLANK email with unsubscribe in
> the
> > > > SUBJECT field to the address above.
> > > >
> > > >
> > >
> > > ------------------------------------------
> > > Make your TechAssist database better!
> > > Submit Repair Tips here:
> > > http://www.tech-assist.org/secure/tip/
> > > ------------------------------------------
> > > To UNSUBSCRIBE your email address, click
> here:
> > >
> >
>
mailto:techassist-request@xxxxxxxxxxxxx?subject=unsubscribe
> > > Or send a BLANK email with unsubscribe in the
> > > SUBJECT field to the address above.
> > >
> > 
> > =====
> > Walter Wood
> > Future Tech Home Center
> > 2786 Hwy. 43 N.
> > Lawrenceburg Tn. 38464
> > 931-829-3337
> > Fax 931-829-4044
> > mailto:wwood_38478@xxxxxxxxx
> > 
> >
>
__________________________________________________
> > Do You Yahoo!?
> > Send FREE Valentine eCards with Yahoo!
> Greetings!
> > http://greetings.yahoo.com
> > ------------------------------------------
> > Make your TechAssist database better!
> > Submit Repair Tips here:
> http://www.tech-assist.org/secure/tip/
> > ------------------------------------------
> > To UNSUBSCRIBE your email address, click here:
> >
>
mailto:techassist-request@xxxxxxxxxxxxx?subject=unsubscribe
> > Or send a BLANK email with unsubscribe in the
> > SUBJECT field to the address above.
> 
> -- 
> 
> 
> 
> Gary McCartney
> 
> McCartney Electronics
> 7134 Fife Rd, RR 7
> Guelph Ontario Canada N1H 6J4
> Fax: (519)821-1530
> email: number63@xxxxxxxxxxxxx
> ------------------------------------------
> Make your TechAssist database better!  
> Submit Repair Tips here:
> http://www.tech-assist.org/secure/tip/
> ------------------------------------------
> To UNSUBSCRIBE your email address, click here:
>
mailto:techassist-request@xxxxxxxxxxxxx?subject=unsubscribe
> Or send a BLANK email with unsubscribe in the
> SUBJECT field to the address above.
> 


=====
Walter Wood                  
Future Tech Home Center        
2786 Hwy. 43 N.
Lawrenceburg Tn. 38464
931-829-3337
Fax 931-829-4044
mailto:wwood_38478@xxxxxxxxx

__________________________________________________
Do You Yahoo!?
Send FREE Valentine eCards with Yahoo! Greetings!
http://greetings.yahoo.com
------------------------------------------
Make your TechAssist database better!  
Submit Repair Tips here: http://www.tech-assist.org/secure/tip/
------------------------------------------
To UNSUBSCRIBE your email address, click here:
mailto:techassist-request@xxxxxxxxxxxxx?subject=unsubscribe
Or send a BLANK email with unsubscribe in the
SUBJECT field to the address above.

Other related posts: