[TechAssist] Re: RCA 27V530T ITC 008 chassis
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
- To: "Techassist" <techassist@xxxxxxxxxxxxx>
- Date: Thu, 5 Feb 2004 07:27:00 -0500
Another update on this chassis. The set that would loose horizontal sync is
fixed and gone. As previously posted, the cure was to replace RV001 (15K
surface mount, part# 256743), CV006 (part# 256858), and CV007 (part#
244072). All of these components are off of pin 17 of IV001. The other set
had intermittent shutdown and I thought I had it fixed after replacing the
flyback as it ran here in the shop for a couple of weeks waiting for the
customer to return from being away for the holidays. Two days before
delivering it back, it started shutting down again. Thomson Tech Assist
advised me to lift one end of diode DL062 (the pincushion shutdown diode) on
the main board near the flyback to see if it then continued to shutdown. If
it did not shutdown anymore, then that would indicate the small pincushion
board on the side was causing it. Well of course it is NOT shutting down
anymore with the diode lifted so it appears the pincushion board (part#
263367 which is a warranty replaceable part) is the culprit. The bad news is
that I cannot find a distributor who has it in stock and they have informed
me that Thomson indiciates it is on a factory backorder until 03/15/2004. I
thought I would share this troubleshooting technique with you in case anyone
encounters an intermittent shutdown scenario on this chassis.
Bob Waterman, CET® #RI-28
Master Technician License #9109
Service Manager / Parts Manager
Gemini Computer, TV, & Security Alarms
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxxxxxxx
geminitv@xxxxxxx
www.geminicomputertvsecurityalarms.com
----- Original Message -----
From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, December 26, 2003 1:26 PM
Subject: Re: [TechAssist] Re: RCA 27V530T ITC 008 chassis
> This is an update on the two sets I have. I will start with the second one
I
> received that would run fine for about 15 - 30 minutes from a cold start
and
> then completely shut down. The set would have to be unplugged before you
> could restart it again and there were no error codes indicated in the
> service menu. As the set was "warmer", the amount of time it would stay on
> would decrease and sometimes it would not restart at all. I received a new
> flyback for this on Wednesday and installed it late Wednesday afternoon
> before heading home for Christmas Eve. I left the set running around the
> clock and it was fine when I came in this morning so it looks like the
> flyback was the culprit on this one. I shut the set down and removed the
> micro/signal processor IC (ref# IV001, RCA part# 264079) so that I could
> swap it with the same IC on my other set that would loose horizontal
> frequency and scramble after it was warm. (Note: the IC's I ordered have
> been on backorder for a while and I was only doing this for
troubleshooting
> confirmation to see if the symptom would change to the other TV). Well as
> luck would have it, neither set will now exhibit the frequency symptom and
> both are running great for the moment anyway. I completed the IC swap
about
> 6 hours ago. I will continue to monitor both of them and let them run
around
> the clock for the entire weekend to see how they are when I come in on
> Monday morning.
>
> Bob Waterman, CET® #RI-28
> Master Technician License #9109
> Service Manager / Parts Manager
> Gemini Computer, TV, & Security Alarms
> (508)695-7302
> (508)695-7769 FAX
> geminitv@xxxxxxxxxxxxxxxx
> geminitv@xxxxxxx
> www.geminicomputertvsecurityalarms.com
>
>
> ----- Original Message -----
> From: "Paul Westcott" <westcott@xxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, December 18, 2003 9:44 AM
> Subject: [TechAssist] Re: RCA 27V530T ITC 008 chassis
>
>
> > Bob,
> > For the set that keeps shutting off,check for cold solder
> > connections on the pincushion board..I had three with the same
problem.It
> is
> > a highly intermittent condition.
> > I ended up soldering complete board and hard-wireing the cable at
> connector
> > BL103.So far, the sets have been in the field for about two months.
> > HTH.
> > Paul Westcott
> > Kingsway Electronics
> > 1090 kingsway
> > Sudbury,Ontario
> > Canada
> > Phone 705 566-9290
> > Fax 705 566-5349
> > ----- Original Message -----
> > From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Thursday, December 18, 2003 6:43 AM
> > Subject: [TechAssist] Re: RCA 27V530T ITC 008 chassis
> >
> >
> > > The first one I received sounds like it has the same problem as yours.
> See
> > > this excerpt from my previous post:
> > >
> > > The customer's complaint is intermittently the screen will scramble
> (looks
> > > like the horizontal frequency may be off similar to installing a new
> > EEPROM
> > > on a CTC177) and sometimes the picture goes to black and white. The
> > symptom
> > > only happens after the set is warm and ONLY if any setting change is
> made
> > > (channel change, volume, input....etc). It indicates error code "136"
> for
> > > the MSP IC (ref# IS100). See if yours indicates the same. Late
yesterday
> I
> > > swapped IS100 between the two sets I have now and let it run
overnight.
> > When
> > > I came in this morning, I changed the channel and it lost sync again
so
> it
> > > appears that IS100 is not the problem with it.
> > >
> > > The other set will run for usually a short period of time and shut off
> > > completely. It may restart but if it does, the run time gets shorter
> > before
> > > it shuts off. Sometimes you have to unplug it to get it to restart. It
> > does
> > > not indicate any error code. I am suspect of the flyback on this one.
I
> am
> > > on the road most of today so tomorrow I may swap the micro/signal
> > processor
> > > IC (ref# IV001) between them to see what that does.
> > >
> > > Bob Waterman, CET® #RI-28
> > > Master Technician License #9109
> > > Service Manager / Parts Manager
> > > Gemini Computer, TV, & Security Alarms
> > > (508)695-7302
> > > (508)695-7769 FAX
> > > geminitv@xxxxxxxxxxxxxxxx
> > > geminitv@xxxxxxx
> > > www.geminicomputertvsecurityalarms.com
> > >
> > >
> > > ----- Original Message -----
> > > From: <tvservice@xxxxxxxxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Wednesday, December 17, 2003 6:36 PM
> > > Subject: [TechAssist] Re: RCA 27V530T ITC 008 chassis
> > >
> > >
> > > > Bob, what are the symptoms with your sets?
> > > > I picked up one that after changing channels a few times loses
> > horizontal
> > > > sync.
> > > > Have not started troubleshooting yet.
> > > > Robert
> > > > tvservice@xxxxxxxxxxxxx
> > > > H & H Electronics Inc
> > > > Dallas, TX
> > > >
> > > > ----- Original Message -----
> > > > From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
> > > > To: <techassist@xxxxxxxxxxxxx>
> > > > Sent: Wednesday, December 17, 2003 3:15 PM
> > > > Subject: [TechAssist] Re: RCA 27V530T ITC 008 chassis
> > > >
> > > >
> > > > > I have some on order from Tritronics and some on order from Jason
at
> > > Excel
> > > > > Distributing. Jason said that Thomson had two showing to be in
stock
> > and
> > > > he
> > > > > was expecting them in but he has not received them as of yet. I am
> > aware
> > > > of
> > > > > the drop ship but have not done that in quite some time. Talk
about
> > the
> > > > SLOW
> > > > > boat FROM China!
> > > > >
> > > > > Bob Waterman, CET® #RI-28
> > > > > Master Technician License #9109
> > > > > Service Manager / Parts Manager
> > > > > Gemini Computer, TV, & Security Alarms
> > > > > (508)695-7302
> > > > > (508)695-7769 FAX
> > > > > geminitv@xxxxxxxxxxxxxxxx
> > > > > geminitv@xxxxxxx
> > > > > www.geminicomputertvsecurityalarms.com
> > > > >
> > > > >
> > > > > ----- Original Message -----
> > > > > From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
> > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > Sent: Wednesday, December 17, 2003 4:05 PM
> > > > > Subject: [TechAssist] Re: RCA 27V530T ITC 008 chassis
> > > > >
> > > > >
> > > > > > You do know you can have those new parts for new products drop
> > shipped
> > > > if
> > > > > > distributors don't stock them as yet Bob, or has that procedure
> > > changed
> > > > > > also?
> > > > > > **************************************************
> > > > > > Jim Myers
> > > > > > Since 1972
> > > > > > Telrad Electronic Services Co.
> > > > > > Fort Wayne, IN 46815
> > > > > > *************************************************
> > > > > > ----- Original Message -----
> > > > > > From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
> > > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > > Sent: Wednesday, December 17, 2003 4:01 PM
> > > > > > Subject: [TechAssist] Re: RCA 27V530T ITC 008 chassis
> > > > > >
> > > > > >
> > > > > > Oh yes and what a honey they are! Now I have about 8 parts on
> order
> > > > > between
> > > > > > them and not a single distributor has any of them in stock. I
> > already
> > > > have
> > > > > a
> > > > > > very upset customer on the first one. Go Thomson!
> > > > > >
> > > > > > Bob Waterman, CET® #RI-28
> > > > > > Master Technician License #9109
> > > > > > Service Manager / Parts Manager
> > > > > > Gemini Computer, TV, & Security Alarms
> > > > > > (508)695-7302
> > > > > > (508)695-7769 FAX
> > > > > > geminitv@xxxxxxxxxxxxxxxx
> > > > > > geminitv@xxxxxxx
> > > > > > www.geminicomputertvsecurityalarms.com
> > > > > >
> > > > > >
> > > > > > ----- Original Message -----
> > > > > > From: "al m" <ampm@xxxxxxx>
> > > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > > Sent: Wednesday, December 17, 2003 3:45 PM
> > > > > > Subject: [TechAssist] Re: RCA 27V530T ITC 008 chassis
> > > > > >
> > > > > >
> > > > > > > Is this a new TV or a RCA with a different chassis?
> > > > > > > Al Marquardt
> > > > > > > ampm@xxxxxxx
> > > > > > > Al Marquardt Electronic Repair
> > > > > > > 206 W Main
> > > > > > > Girardville Pa. 17935
> > > > > > > ----- Original Message -----
> > > > > > > From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
> > > > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > > > Sent: Wednesday, December 17, 2003 3:35 PM
> > > > > > > Subject: [TechAssist] Re: RCA 27V530T ITC 008 chassis
> > > > > > >
> > > > > > >
> > > > > > > > Paul,
> > > > > > > > I have two of that exact same model and it appears that is
the
> > > > nature
> > > > > of
> > > > > > > the
> > > > > > > > beast with these as both of mine behave the same as yours.
> > > > > > > >
> > > > > > > > Bob Waterman, CET® #RI-28
> > > > > > > > Master Technician License #9109
> > > > > > > > Service Manager / Parts Manager
> > > > > > > > Gemini Computer, TV, & Security Alarms
> > > > > > > > (508)695-7302
> > > > > > > > (508)695-7769 FAX
> > > > > > > > geminitv@xxxxxxxxxxxxxxxx
> > > > > > > > geminitv@xxxxxxx
> > > > > > > > www.geminicomputertvsecurityalarms.com
> > > > > > > >
> > > > > > > >
> > > > > > > > ----- Original Message -----
> > > > > > > > From: "Paul Westcott" <westcott@xxxxxxx>
> > > > > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > > > > Sent: Tuesday, December 16, 2003 12:49 PM
> > > > > > > > Subject: [TechAssist] RCA 27V530T ITC 008 chassis
> > > > > > > >
> > > > > > > >
> > > > > > > > > Could someone tell me if it is normal for these sets
> > > > > > > > > to have a slight delay when changing channels ( 1 to 11/2
> > sec.)
> > > > > (picky
> > > > > > > > > customer).
> > > > > > > > > Thanks in advance.
> > > > > > > > >
> > > > > > > > > Paul Westcott
> > > > > > > > > Kingsway Electronics
> > > > > > > > > 1090 kingsway
> > > > > > > > > Sudbury,Ontario
> > > > > > > > > Canada
> > > > > > > > > Phone 705 566-9290
> > > > > > > > > Fax 705 566-5349
> > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
>
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