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SOny 1271 seems to forget its convergence settings

 
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holdenkicks




Joined: 29 May 2011
Posts: 56
PostLink    Posted: Sun Jun 26, 2011 4:13 am    Post subject: SOny 1271 seems to forget its convergence settings Reply with quote

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Hey guys

I want to fix up my sony 1271 so I can sell it. It seems to "forget" its zone convergence settings after being off and unplugged for a while, meaning I have to re do the convergence every time I turn it on.

Is there a little backup battery in the PJ that could be dead? Or is it more likely to be the problem described on this page: http://www.curtpalme.com/Sony125x_Layout8.shtm

From that page:
Quote:
Under the shield between the R and B tubes are the CPU boards. Actual failure of these boards again is rare, but bad module or IC socket connections can result in erratic operation or convergence memory failure.

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Barco Graphics 808s, ceiling mounted front projection,
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CasetheCorvetteman




Joined: 09 Nov 2008
Posts: 6319
Location: Australia


PostLink    Posted: Sun Jun 26, 2011 11:54 am    Post subject: Reply with quote
Ive never had one apart, but open it up and pull out any socketed IC on those boards, then give them a clean up, and push them back in.

If there is a battery ( and i dont know if there is or not ) , see what voltage it is, and if its a NiCd, replace it straight away cause they destroy things when they leak.
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Jeremy112




Joined: 28 Sep 2006
Posts: 2645
Location: Fond du Lac, WI


PostLink    Posted: Sun Jun 26, 2011 12:13 pm    Post subject: Reply with quote
as far as I am aware the 12xxQ line of projectors doesn't have any battery backup for settings, it should all be stored in the memory board even when unplugged. I would guess the memory board (or whatever board itis that saves the settings). I've worked on a 1272Q pretty thuroughly and haven't yet seen this issue pop up on it.

Curt may know more about this I'm sure..
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When I'm asking for a Model number, that doesn't mean I'm asking for a nude photo with your number on it Wink
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CasetheCorvetteman




Joined: 09 Nov 2008
Posts: 6319
Location: Australia


PostLink    Posted: Sun Jun 26, 2011 11:58 pm    Post subject: Reply with quote
His will be a QM, cause he is in Australia, not that itll matter for this issue...
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CasetheCorvetteman




Joined: 09 Nov 2008
Posts: 6319
Location: Australia


PostLink    Posted: Tue Jun 28, 2011 7:01 am    Post subject: Reply with quote
How much do you want for this old dog anyway? What are the tubes like?
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holdenkicks




Joined: 29 May 2011
Posts: 56
PostLink    Posted: Tue Jun 28, 2011 11:52 am    Post subject: Reply with quote
CasetheCorvetteman wrote:
How much do you want for this old dog anyway? What are the tubes like?



hey mate

I would be quite happy with $150, and the tubes are actually pretty good. Only the blue tube has any wear on it, and is about a 6 on the tube wear rating. Has only done just under 3000 hours. Im pretty determined to fix up any issues it has so it can continue to provide service to a good home. Once its down from the ceiling ill redo the solder joints to see if that helps.
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Barco Graphics 808s, ceiling mounted front projection,
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CasetheCorvetteman




Joined: 09 Nov 2008
Posts: 6319
Location: Australia


PostLink    Posted: Wed Jun 29, 2011 6:55 am    Post subject: Reply with quote
Roger that, ill keep it in mind. Shipping would be the deal killer for me id say. Fair chance i could repair it though no worries.
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StudioJim




Joined: 05 Jul 2011
Posts: 5
PostLink    Posted: Tue Jul 05, 2011 10:21 pm    Post subject: Reply with quote
Shipping to and from Australia is indeed a killer if living in the United States! That's a nice projector though. It makes for some good pictures. I have a good friend who owns one and he is very happy with it.

---
The home theater construction project never ends! Any advice on seating would be appreciated. I know Family Leisure sells them. Any other ideas?
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Proud owner of a Sony VPH-D50 CRT projector

Last edited by StudioJim on Mon Jul 11, 2011 5:15 pm; edited 1 time in total
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CasetheCorvetteman




Joined: 09 Nov 2008
Posts: 6319
Location: Australia


PostLink    Posted: Wed Jul 06, 2011 6:56 am    Post subject: Reply with quote
We are both in Australia. I wouldnt bother to ship a projector from the USA unless it was a 10PG or a Cine 9.
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