Samsung S42AX-YB04 Plasma TV stuck in standby

[Mikeyboy2007]

hi guys got a faulty samsung model umber as in title, standby light on red wont respond to anything i do, took a few pics to help. noticed one cap that looks to be a little bulged. could it be just one cap ?

if you guys need any detailed pictures of anything inparticular i can take more pictures thanks.

[tom66]

Re: Samsung S42AX-YB04 Plasma TV stuck in standby

Are you sure that's not just a panel mode #? We need the actual model e.g. PS42G400...

[Mikeyboy2007]

Re: Samsung S42AX-YB04 Plasma TV stuck in standby

Pictures

[Mikeyboy2007]

Re: Samsung S42AX-YB04 Plasma TV stuck in standby

Are you sure that's not just a panel mode #? We need the actual model e.g. PS42G400...

sorry tom whats a Panel Model ? model number is PS42A457P1D

[selldoor]

Re: Samsung S42AX-YB04 Plasma TV stuck in standby

Panel Model # = panel model number which is the number of the screen panel not the model number of the tv set.

[selldoor]

Re: Samsung S42AX-YB04 Plasma TV stuck in standby

Pictures are not really clear enough. You should be doing the tests we asked you to do on the hanspree and post the results. Test fuses. Test low voltages against ground screw.
If None test Big Cap. If there are low voltages test them twice- when plugged in
when switched on.

[Mikeyboy2007]

Re: Samsung S42AX-YB04 Plasma TV stuck in standby

Pictures are not really clear enough. You should be doing the tests we asked you to do on the hanspree and post the results. Test fuses. Test low voltages against ground screw.
If None test Big Cap. If there are low voltages test them twice- when plugged in
when switched on.

ok mate will give it a go

[tom66]

Re: Samsung S42AX-YB04 Plasma TV stuck in standby

That cap looks fine and I don't think it would cause the TV to stay in standby.
Once (and ONLY AFTER) you have done Selldoor's tests, follow the steps here:
https://www.badcaps.net/forum/showpo...61&postcount=2

[Mikeyboy2007]

Re: Samsung S42AX-YB04 Plasma TV stuck in standby

If there are low voltages test them twice- when plugged in
when switched on.

by switched on mate what do you mean as it can be plugged in to power but cant get it out of standby ??

[selldoor]

Re: Samsung S42AX-YB04 Plasma TV stuck in standby

! plug it in - switch on mains power - do the tests.
2 press the power on switch on the set -do the tests.
Maybe the answers are the same

[Alastair E]

Re: Samsung S42AX-YB04 Plasma TV stuck in standby

Right--

Plasmas are made by only a few makers. These makers supply the Panel, its metal chassis, the Controller, the PSU, the ZSUS and YSUS boards, occasionally other smaller boards too. They supply this as a monitor only.

Main makes are Samsung, L.G., Fujitsu/Hitachi, Panasonic.

All the other makers will use these chassis to build the sets with. The TV maker will put their own receiver/control/digital stuff onto the bought in Plasma Monitor panel, then give it their own model-number.

So--A L.G. PDP42V7 'chassis' will be found in many makes often having subtle differences between TV makes,--often in the PSU boards....

Your S42AX-YB04 Chassis will probably be found in many different makes--but will have differences depending on the TV maker who used it!

How did you get on with that LCD you were looking at?

[Mikeyboy2007]

Re: Samsung S42AX-YB04 Plasma TV stuck in standby

ok guys sorry it took so long had a hectic night... results where as follows:

N/C
RTN
RTN
13v_amp 0.25v
RTN
RTN
D5.3v 0.18v
D5.3v 0.18v
RTN
RTN
D13v 0.25v
N/C
ps_on 3.10-3.14
STD5v 4.85-4.94
RTN
13v_AMP 0.25v
RTN
RTN
D5.3v 0.18v
D5.3v 0.18v
RTN
D13v 0.25v
D13v 0.25v
VS_ON
--------------------------------------
STD5v no cable
VS_on 0v
N.C
PS_ON 3.14v
RTN no cable
D5.3v no cable
RTN
RTN
D5.3v 0.18v
D5.3v 0.18v
--------------------------------------
VS 0.08 voltage was rising slowly to 0.18
VS 0.08 voltage was rising slowly to 0.18
RTN
RTN
VG 0.25v
--------------------------------------
VS 0.25v
RTN
VS 0.02
RTN
VS 0.18
VS 0.18

[tom66]

Re: Samsung S42AX-YB04 Plasma TV stuck in standby

Re-check STBY -- is it unstable?

[Mikeyboy2007]

Re: Samsung S42AX-YB04 Plasma TV stuck in standby

yeah mate was unstable was just jumping between the 2 numbers stated ?

[tom66]

Re: Samsung S42AX-YB04 Plasma TV stuck in standby

Was that with the main board connected?

[Mikeyboy2007]

Re: Samsung S42AX-YB04 Plasma TV stuck in standby

yes mate everything was still connected when i done the tests. should i have it disconnected ?

[selldoor]

Re: Samsung S42AX-YB04 Plasma TV stuck in standby

Fluctuating voltage could be startup caps - what is the part number on the 7 legged
component near the cap you thought was bulged?

[Mikeyboy2007]

Re: Samsung S42AX-YB04 Plasma TV stuck in standby

will do another test to9 make sure its still unstable but part number you asked for is : A6519 SK883 22AK

[tom66]

Re: Samsung S42AX-YB04 Plasma TV stuck in standby

Schematic of PSU, I think
http://www.tgohome.com/ServiceManual...&Search=Submit

Part STR-A6159

[Mikeyboy2007]

Re: Samsung S42AX-YB04 Plasma TV stuck in standby

will i need to order that part from somewhere ? you think thats what the proble is