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.