Help: Sony/Dell Monitor Vertical Problem

M

Michael

Guest
Hi, all. I have a 21" Sony-built Dell monitor, model number D1626HT, part
of the UltraScan 1600HS series. Monitor works, but the vertical size is
WAY too big, and the side pincushion is bowed in. The pincushion
adjustment doesn't work.

Focus, HV and horizontal all appear normal. I checked the power supply
voltages (which are marked on the board), and they were about right.
Nothing's over normal.

It's a solid failure, and tapping on the boards and such doesn't change
anything. I'm guessing the vertical output IC is bad, but I don't really
know. There are some power ICs and transistors on a heatsink along one
side of the scan board.

Anybody have service data or maybe someone's fixed one of these before?
Any help is appreciated. Seems a shame to toss this rather nice, big
monitor, which is only 4 years old.

Thanks.

Michael
 
I would say that there is more of a chance that there are defective
capacitors in the vertical deflection amp and pin amp areas. I do not have
tech information on your model to tell you details. If you check all the
caps with an ESR meter, there is an excellent chance you will be able to
determine the bad ones.

--

Greetings,

Jerry Greenberg GLG Technologies GLG
=========================================
WebPage http://www.zoom-one.com
Electronics http://www.zoom-one.com/electron.htm
Instruments http://www.zoom-one.com/glgtech.htm
=========================================


"Michael" <me@nomorespam.com> wrote in message
news:me-1509031632020001@192.168.0.113...
Hi, all. I have a 21" Sony-built Dell monitor, model number D1626HT, part
of the UltraScan 1600HS series. Monitor works, but the vertical size is
WAY too big, and the side pincushion is bowed in. The pincushion
adjustment doesn't work.

Focus, HV and horizontal all appear normal. I checked the power supply
voltages (which are marked on the board), and they were about right.
Nothing's over normal.

It's a solid failure, and tapping on the boards and such doesn't change
anything. I'm guessing the vertical output IC is bad, but I don't really
know. There are some power ICs and transistors on a heatsink along one
side of the scan board.

Anybody have service data or maybe someone's fixed one of these before?
Any help is appreciated. Seems a shame to toss this rather nice, big
monitor, which is only 4 years old.

Thanks.

Michael
 
This is a Sony N3 chassis, known for failure of the deflection IC
CXA2043Q

On Mon, 15 Sep 2003 23:31:49 GMT, me@nomorespam.com (Michael) wrote:

Hi, all. I have a 21" Sony-built Dell monitor, model number D1626HT, part
of the UltraScan 1600HS series. Monitor works, but the vertical size is
WAY too big, and the side pincushion is bowed in. The pincushion
adjustment doesn't work.

Focus, HV and horizontal all appear normal. I checked the power supply
voltages (which are marked on the board), and they were about right.
Nothing's over normal.

It's a solid failure, and tapping on the boards and such doesn't change
anything. I'm guessing the vertical output IC is bad, but I don't really
know. There are some power ICs and transistors on a heatsink along one
side of the scan board.

Anybody have service data or maybe someone's fixed one of these before?
Any help is appreciated. Seems a shame to toss this rather nice, big
monitor, which is only 4 years old.

Thanks.

Michael
Click to expand...
 
In article <3f666038.2319294@shawnews>, whmrs@mrbc.ca (Wayne) wrote:

This is a Sony N3 chassis, known for failure of the deflection IC
CXA2043Q
Click to expand...
Thanks! I figured it was something like that. Any idea where I can get one?
 
MCM looks to have the best price
http://www.mcmelectronics.com/
Make sure you rule out other possible causes first
Replacing this IC requires above average soldering skills to avoid
destroying the main board

On Tue, 16 Sep 2003 18:40:52 GMT, me@nomorespam.com (Michael) wrote:

In article <3f666038.2319294@shawnews>, whmrs@mrbc.ca (Wayne) wrote:

This is a Sony N3 chassis, known for failure of the deflection IC
CXA2043Q

Thanks! I figured it was something like that. Any idea where I can get one?
Click to expand...
 
In article <3f67ab45.932350@shawnews>, whmrs@mrbc.ca (Wayne) wrote:

MCM looks to have the best price
http://www.mcmelectronics.com/
Make sure you rule out other possible causes first
Replacing this IC requires above average soldering skills to avoid
destroying the main board
Click to expand...
I'm a skilled former VCR tech (from the days when they were $800 and worth
fixing), and I can change the chip. However, without service data, I don't
know how I could rule out other problems, since I don't know what's
supposed to be there. Is there something specific I can look for on the
scope that would confirm if the chip is bad?

Thanks.
 
e-mail address?

On Wed, 17 Sep 2003 08:52:18 GMT, me@nomorespam.com (Michael) wrote:

In article <3f67ab45.932350@shawnews>, whmrs@mrbc.ca (Wayne) wrote:

MCM looks to have the best price
http://www.mcmelectronics.com/
Make sure you rule out other possible causes first
Replacing this IC requires above average soldering skills to avoid
destroying the main board

I'm a skilled former VCR tech (from the days when they were $800 and worth
fixing), and I can change the chip. However, without service data, I don't
know how I could rule out other problems, since I don't know what's
supposed to be there. Is there something specific I can look for on the
scope that would confirm if the chip is bad?

Thanks.
Click to expand...
 
In article <3f691729.7732188@shawnews>, whmrs@mrbc.ca (Wayne) wrote:

e-mail address?
Click to expand...
f*i^s9hb#u.y!s AT k+a=b9o-o/mrec76ords DOT c**o&m

Remove everything but letters. (Isn't it stupid that we have to do things
like this to avoid spam?)
 
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