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bofr
Joined: 03 Feb 2008
Posts: 28
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| Posted: Sun Feb 03, 2008 1:08 pm Post subject: 1271 g2 voltages |
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Hi all.
Having a hard time getting good focus on my sony 1271qm. So I hooked up a voltmeter
to the measuring-pins for the g2 voltages. Thing is, they seem to be a bit..odd..
According to curts guide the voltages are supposed to be approx. 4V .
What i got was: -0.2V , 0,3V , 3.72V
Before i start twisting the controls to get the voltages normal I am wondering if this
is actually possible or if the measuring-pins might give the wrong readings.
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jkruger
Joined: 24 Oct 2007
Posts: 2435
Location: Carlsbad, CA
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| Posted: Sun Feb 03, 2008 4:23 pm Post subject: |
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I think the voltages are supposed to be 1.5v for the 1271. My 1272 was very close to what you have now and I read somewhere here that the later PJ's needed to be at 1.5v. I'll try to find a link to the info. can't find it, maybe Curt will have it.
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MrCRTing
Joined: 03 Feb 2008
Posts: 35
Location: Brighton UK
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| Posted: Sun Feb 03, 2008 5:17 pm Post subject: |
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Hi
Oh I hope the 4 Volts is right as I have set all of mine as close to 4 Volt as possible as they were all down!
Mine were 1.3, 1.6, 3.78 to start with!
MrCRTing
_________________
How does 3D TV / movies work when you only have one working eye? IT DON'T !
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jkruger
Joined: 24 Oct 2007
Posts: 2435
Location: Carlsbad, CA
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| Posted: Sun Feb 03, 2008 9:10 pm Post subject: |
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As I recall it's only the later model 1272's that are 1.5v, the others are 4v. Make sure the brightness and contrast are correct per the setup info here before setting the G2.
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tony359
Joined: 04 Aug 2006
Posts: 378
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| Posted: Sun Feb 03, 2008 9:21 pm Post subject: |
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1271 should be 4V.
Remember that adjusting BIAS will cause voltages to change.
So reset the BIAS and GAIN (write down the values) and check again.
Set to 4V only after warming up.
Then it's normal that after the BIAS adjustments the values will change.
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