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Spectroniq PLTV-3250 wont start

 
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Xtech
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PostPosted: Wed Feb 04, 2009 5:10 am    Post subject: Spectroniq PLTV-3250 wont start Reply with quote

Hello
I am working with a spectroniq (proton) model PLTV-3250
LCD TV. The set will not start I found a series of bad electrolytic
capacitors in the power supply along with a small
surface mount transistor, all of which I have replaced.
The front standby light is not lit. It uses an FSP194-3F01 power supply.
I have not been able to round up any service data for this unit.
And they dont appear to have a website anywhere on the net.
I need to know at what points in the supply I should be receiving
voltage and how much. There is a noise that's barely audible coming
from the top area of the set, I think its one of the boards that control
the LCD panel lights, but I'm not 100 percent sure.

Just curious if anyone has (or knows) where I can get a manual,
and help steer me in the right direction.

Thank you
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vtech



Joined: 08 May 2006
Posts: 1264
Location: USA

PostPosted: Wed Feb 04, 2009 5:51 am    Post subject: Reply with quote

Only thing I know that it was not made by Proton---it was Protron Digital which filed for chapter 11 on 08. No idea about the manual though?
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Xtech
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PostPosted: Wed Feb 04, 2009 4:36 pm    Post subject: Reply with quote

I sent an Email to FSP (the manufacturer of the power supply)
and requested a schematic. I’ll see how cooperative they are.
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Xtech
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PostPosted: Tue Feb 17, 2009 10:19 pm    Post subject: Reply with quote

Update:
The company who makes the supply wouldn't supply a schematic.
I found a new power supply and replaced it.
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hacker gnome
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PostPosted: Fri Feb 20, 2009 5:25 am    Post subject: FSP194-3F01 Reply with quote

xtech, Where did you find a power supply?
Thanks
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Xtech
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PostPosted: Tue Feb 24, 2009 11:16 pm    Post subject: Re: FSP194-3F01 Reply with quote

hacker gnome wrote:
xtech, Where did you find a power supply?
Thanks


Ebay,

I was able to repair the old one.
After doing some comparison testing between the
two. I found a zener diode that was killing the 5 volt
standby voltage. It was neither shorted or open. It
originally tested good in circuit using diode check on my DMM.
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[email protected]
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PostPosted: Thu Dec 09, 2010 9:06 pm    Post subject: 5 volts stand by missing Reply with quote

i have work in this tv proton for several times and i never hane any problem with the 5 volts stand by but always found a cap bad on 5 stby after replaced the caps if any vary has still problems with 5 volts stby chek ZD4 its close to the IC2its reading bad after you replaced this zener diode power will work 5 volts stand by missing
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nowone
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PostPosted: Wed Jan 19, 2011 12:16 pm    Post subject: zener Reply with quote

What is the voltage for the zener diode?
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