Am I Being Too Critical

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I just got my Samsung TX-P3076WH HDTV a CRT set, and while I'm generally
pleased I see a convergence shift for the red along left vertical edges over
most of the screen. Now I know that absolute perfection is not attainable but I
would think it should be better for HDTV. I would like to see some comments as
to the experience of others on this. How can I judge what is acceptable?
In the old days I did some TV servicing and have done convergence adjustments
and I would think I could do better than what I see here.
When thay delivered the set I noticed the delivery guy moving the box end over
end and letting it drop each time to get it from the back to the unloading end
of the truck.
I spoke to a Samsung service guy and he said convergence on CRT is factory
fixed and that I should ask for a replacement from the store.

Thanks.

Paul
 

jeremy

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Paul,

First of all, the Samsung service rep is correct. On direct-view sets
there is no service menu (outside what a tech may be able to tap into
by opening up the set). There usually doesn't need to be. If you're
noticing this "red shift" problem consistantly on HD broadcast I would
exchange the set. What you're describing does not sound normal.

Depending on what state you live in, most retailers of consumer
electronics are forced to provide some kind of reasonable
return/exchange policy.

-Jeremy
HDTV Buyers FAQ:
http://hdtv.0catch.com
HDTV news headlines:
http://thdblog.blogspot.com/
 
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jeremy@pdq.net wrote:

> First of all, the Samsung service rep is correct. On direct-view sets
> there is no service menu (outside what a tech may be able to tap into
> by opening up the set). There usually doesn't need to be.

Yes there is, sometimes. My set is pretty much the same as his but one
size smaller, and it has a service menu. I recently used it to adjust
my overscan and pincushioning.

> If you're
> noticing this "red shift" problem consistantly on HD broadcast I
would
> exchange the set. What you're describing does not sound normal.

Can you measure the red offset and say roughly how big it is, like in
terms of how many color-grid cells it is? (The grid itself does
prevent convergence from ever being perfect...)
 
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>Can you measure the red offset and say roughly how big it is, like in
>terms of how many color-grid cells it is? (The grid itself does
>prevent convergence from ever being perfect...)

I would say 2 grid lines shifted to the left. If there is a shift up or down I
don't notice it.
If you have a service menu on yor Samsung how do you get to it?

Thanks guys for the information. It's great to be able to discuss these
problems.

Paul
 
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Pdelpriore wrote:

> I would say 2 grid lines shifted to the left. If there is a shift up
> or down I don't notice it.

So that's a couple of millimeters, right? A significant distance.
Sounds like the guys who rolled it around and bounced it in the ground
during delivery messed it up and are entitled to a chewing-out from
their boss when you take it back for replacement.

> If you have a service menu on yor Samsung how do you get to it?
Turn the TV off, then press Mute 1 8 2 Power on the remote.
 
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jeremy@pdq.net wrote in news:1103844731.190109.63010
@c13g2000cwb.googlegroups.com:

> Paul,
>
> First of all, the Samsung service rep is correct. On direct-view sets
> there is no service menu (outside what a tech may be able to tap into
> by opening up the set). There usually doesn't need to be. If you're
> noticing this "red shift" problem consistantly on HD broadcast I would
> exchange the set. What you're describing does not sound normal.

My Samsung 2795HF definitely has a service menu and I needed to use it
extensively to correct geometry problems that were there when the set was
first unpacked. The 1080i geometry was particularly bad.


--
Dave Oldridge+
ICQ 1800667

A false witness is worse than no witness at all.
 
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>> If you have a service menu on yor Samsung how do you get to it?
>Turn the TV off, then press Mute 1 8 2 Power on the remote.

Paul,

OK I did get the service menu and looked at the DEFLECTION section and didn't
see anything concerning convergence. Perhaps I'm missing something. Do you have
any ideas?
To exit the service menu I turn the power off. Is this acceptable?

Paul
 
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I would never accept delivery of any equipment if I see it being handled
rough or otherwise incorrectly. Looks like you won't have a tough time
returning the set, since the convergence error is significant and
unacceptable by anyone's standard. Rough handling can introduce marginal
errors that sometimes won't be bad enough to get the OK for replacement. I
have a way of dealing with stuff like that - I make sure that it really
looks bad.
 
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Pdelpriore wrote:

> OK I did get the service menu and looked at the DEFLECTION section
> and didn't see anything concerning convergence. Perhaps I'm missing
> something. Do you have any ideas?

I didn't see anything for that either. Those who seem to know are
telling us it's a mechanical adjustment, not an electronic one. Some
part is physically knocked out of position and has to be put back.

> To exit the service menu I turn the power off. Is this acceptable?
I believe so.
 
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