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Hyundai HPT-4240 42"Plasma tv

B

bluenose41

Jan 1, 1970
0
I am hoping somone can help me with a problem that I am having with my
Television.
I have a Hyundai 42" Plasma TV , Model no:- HPT-4240.
Over the last few weeks I have been getting a Black band down the
screen running from top of the screen straight down to the bottom. The
band is approx one and three quarters inch thick.The line is not
always there all of the time, sometimes it is on the screen for hours
then suddenly disappears giving me a normal picture.

The band starts roughly eleven and a half inches from the left hand
side of the screen and obviously blocks out any
image behind it.I have the screen wall mounted and it is not near any
kind of heat source.
I have a sky box connected to it and have also replaced the box with
another box that i have upstairs connected to a small tv in my room.

Can someone give me any ideas or solution?
Help!

Bluenose41.
 
J

JANA

Jan 1, 1970
0
This type of problem can be either in the display panel itself, or the
matrix processing. The service centre will do board swapping to fix the
problem. They don't fix these at the component level, unless the fault is
very simple. If the fault is in the display itself, then the cost of
servicing would be not feasible. After the board swap, there may be some
adjustments do be done.

You should find out who the authorized service rep for your TV set is, and
let them do a proper estimate for you.

--

JANA
_____


I am hoping somone can help me with a problem that I am having with my
Television.
I have a Hyundai 42" Plasma TV , Model no:- HPT-4240.
Over the last few weeks I have been getting a Black band down the
screen running from top of the screen straight down to the bottom. The
band is approx one and three quarters inch thick.The line is not
always there all of the time, sometimes it is on the screen for hours
then suddenly disappears giving me a normal picture.

The band starts roughly eleven and a half inches from the left hand
side of the screen and obviously blocks out any
image behind it.I have the screen wall mounted and it is not near any
kind of heat source.
I have a sky box connected to it and have also replaced the box with
another box that i have upstairs connected to a small tv in my room.

Can someone give me any ideas or solution?
Help!

Bluenose41.
 
J

Jamie

Jan 1, 1970
0
JANA said:
This type of problem can be either in the display panel itself, or the
matrix processing. The service centre will do board swapping to fix the
problem. They don't fix these at the component level, unless the fault is
very simple. If the fault is in the display itself, then the cost of
servicing would be not feasible. After the board swap, there may be some
adjustments do be done.

You should find out who the authorized service rep for your TV set is, and
let them do a proper estimate for you.
no component level debugging and repairs?, in other words, they're
garage mechanics working on the ignition system in the dark!
 
I am hoping somone can help me with a problem that I am having with my
Television.
I have a Hyundai 42" Plasma TV , Model no:- HPT-4240.
Over the last few weeks I have been getting a Black band down the
screen running from top of the screen straight down to the bottom. The
band is approx one and three quarters inch thick.The line is not
always there all of the time, sometimes it is on the screen for hours
then suddenly disappears giving me a normal picture.

The band starts roughly eleven and a half inches from the left hand
side of the screen and obviously blocks out any
image behind it.I have the screen wall mounted and it is not near any
kind of heat source.
I have a sky box connected to it and have also replaced the box with
another box that i have upstairs connected to a small tv in my room.

Can someone give me any ideas or solution?
Help!

Bluenose41.

Hi,

Did you ever get any suggestions?

I've got a Hyundai hpt-4240? plasma screen TV. It's turning on, and
you hear it click go to power up, the light goes green, then it kills
power to the screen and the light goes red and stays on.

I'm getting no sound either, makes me wonder if it's a power supply
problem perhaps?

Any ideas/info greatly appreciated.

Elmo
 
no component level debugging and repairs?, in other words, they're
garage mechanics working on the ignition system in the dark!

Hi!
I am hoping somone can help me with a problem that I am having with my
Hyundai 42" Plasma TV, Model no. HPT-4240.
 
G

Graham Robinson

Jan 1, 1970
0
Elmo, this is due to the power supply shutting down after detecting
abnormality in the output voltages.It takes about 6/7 seconds after going
Green to shut down.

You need to put a meter on the VS supply and measure for approx 190Volts DC
while the Green light is on. Chances are this supply will not be present.

There's currently a replacement board up on UK Ebay at the moment (Item
number: 330124441705), alternatively your old board could be repaired.


With regards the black vertical band problem, i have found that the best way
to check this is to place a multimeter, switched to low ohms range across
the four 10 ohm resistors which are on the flexible cable which is bonded to
the plasma panel (you have to remove the metal bracket and cable from its
connector as shown in the article mentioned previously
http://www.avforums.com/forums/showthread.php?t=462873&highlight=hyundai )

You should read 10 ohms or thereabouts if you are lucky and then just do a
continuity check between the resistors and the connector strip. If you are
unlucky, like my last repair job , you will geta high reading (5k in my
case) which means the black driver chip which is bonded to the flexi
connector is defective and the panel is basically junk.

Regards


Graham
 
R

Remove _ for valid address

Jan 1, 1970
0
I've got a Hyundai hpt-4240? plasma screen TV. It's turning on, and
you hear it click go to power up, the light goes green, then it kills
power to the screen and the light goes red and stays on.

I'm getting no sound either, makes me wonder if it's a power supply
problem perhaps?

Quite likely. For example, I'm fixing a colleague's LGE42V5 42"
plasma panel, same symptoms.

It uses the DGK-420W power supply (which I believe is used
by various plasma sellers.) There's a green LED on this PSU
board which blinks (1 long and 6(?) short blinks, repeating) when
the Vs supply fails. This PSU is known for blowing the blue 1uF 630V
capacitors in the Vs section, they appear to be driven pretty hard
with full load power through them. One capacitor is entirely open
circuit on mine (and slightly bulged when examined after removal).

Mike.
 
do you still need help with this set?

Hi,

Did you ever get any suggestions?

I've got a Hyundai hpt-4240? plasma screen TV. It's turning on, and
you hear it click go to power up, the light goes green, then it kills
power to the screen and the light goes red and stays on.

I'm getting no sound either, makes me wonder if it's a power supply
problem perhaps?

Any ideas/info greatly appreciated.

Elmo
 
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