Samsung 753s Monitor - Ghosting!

[Adam M]

Hey guys.

Just wondering if you can help me.

I recently had a replacement Samsung 753s CRT monitor. It came with two
pins bent, causing slight ghosting and a poor unchangable refresh rate.
I carefully bent these back from the bottom.

When I plugged the monitor back in, the refresh rate would change but
there was stll slight ghosting. I took it out again and half of pin 10
came off in the VGA port. Half of pin 10, not the whole thing -
suggesting poor quality pins to me.

Samsung have decided this problem is due to accidental damage and won't
replace the monitor, however I'm not sure that the partially-missing
pin is the problem.

The monitor appears to be working fine excluding the ghosting. I can't
seem to find an up-to-date VGA port mapping diagram to determine the
function of pin 10.

Anyone know the function of VGA pin 10? Could it be causing the
ghosting? If it's an actual fault with the unit and I'm not responsible
for it I can start nagging Samsung for a replacement again, and I don't
want to wire a new VGA port on the end if it isn't going so solve the
problem.

(The reason I think it's the pin is that the monitor's own setup menu
is fine. The ghosting is only really noticable on 1024x768 - it doesn't
appear noticable on 800x600 nor when the system starts up.)

Thanks .

 

[Jason D.]

Hey guys.

Just wondering if you can help me.

I recently had a replacement Samsung 753s CRT monitor. It came with two
pins bent, causing slight ghosting and a poor unchangable refresh rate.
I carefully bent these back from the bottom.

You have should not have done the repair, should have demanded another
exchange. They will! I had to do 2 times at our work because
customer wasn't satifised.

By the way, cost of a signal cable for samsung is about 40-60 from
your electronic shop who is authorized to service samsung stuff.
Takes few minutes to swap signal cable.

When I plugged the monitor back in, the refresh rate would change but
there was stll slight ghosting. I took it out again and half of pin 10
came off in the VGA port. Half of pin 10, not the whole thing -
suggesting poor quality pins to me.

Actually not. Samsung's signal cable is not too bad even cable looks
mighty thin. The red, green and blue are shielded coaxes
individually. The red, green and blue signal are on pin 1, 2 and 3.
Their video signal coax shield grounds is also individual on pin 6, 7
and 8.

Samsung have decided this problem is due to accidental damage and won't
replace the monitor, however I'm not sure that the partially-missing
pin is the problem.

That's right as reasons stated above.

The monitor appears to be working fine excluding the ghosting. I can't
seem to find an up-to-date VGA port mapping diagram to determine the
function of pin 10.

Are you using VGA signal extension cable between monitor and computer?
Not all VGA signal extension cables are equal. Thick ones will give
you good results. The $5 VGA extension cables are just wires, no video
signal shielded coaxes so it get lot of cross talk and signal
reflections.

Anyone know the function of VGA pin 10? Could it be causing the
ghosting? If it's an actual fault with the unit and I'm not responsible
for it I can start nagging Samsung for a replacement again, and I don't
want to wire a new VGA port on the end if it isn't going so solve the
problem.

Pin 10 is ground, Nothing to do with what you are having.

Cheers, Wizard

 

[Adam M]

Thanks very much for that .

Adam

 

[Adam M]

Thanks very much for that .

Any ideas how I could cure the ghosting or whether a Samsung reseller
could do it?

Again, thanks.

Adam

 

[Jason D.]

Thanks very much for that .

Any ideas how I could cure the ghosting or whether a Samsung reseller
could do it?

Again, thanks.

Adam

Adam, you're not answering the questions:

Are you using a VGA extension cable? If so, is it quality type?
(thick)

Second, go back to the samsung authorized shop and order a new signal
cable for your monitor at your expense if you have to. If picture is
not still right after correct cables and replaced this damaged cable,
demand another monitor exchange.

Cheers, Wizard

 

[CJT]

Thanks very much for that .

Any ideas how I could cure the ghosting or whether a Samsung reseller
could do it?

Again, thanks.

Adam

replace the bad cable