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Equipment Repairs => PLASMA TV forum => Topic started by: WILLYAM1 on July 28, 2010,16:04:28

Title: daewoo -DP42SM
Post by: WILLYAM1 on July 28, 2010,16:04:28

HELLO everyone problem is.
alot of distortion and colored lines and sparkling dots sound ok .
saw 2 big capi 1500/200v in p.s littel balging but all voltage from p.s are ok .
 here are some   photos.

Title: Re: daewoo -DP42SM
Post by: waxhead on July 28, 2010,19:31:00

i would say the panel has come to the end of its life :unsure:

Title: Re: daewoo -DP42SM
Post by: WILLYAM1 on July 29, 2010,01:58:20

thanks waxhead.
isn't it y sus? did you hade sam problem how can we be sure that panel is" finished".
willyam1

Title: Re: daewoo -DP42SM
Post by: WILLYAM1 on July 29, 2010,08:45:33

hi everyone
i found in ysus board a open resistore RY1 2.2OM \ 2W
i replaced a new one and this is news photos
is it a panel fault ?

Title: Re: daewoo -DP42SM
Post by: brainstorm on July 29, 2010,09:55:23

Hi

I would replace the Y sus board if i was you, I don't think it is a screen fault.

Brian

Title: Re: daewoo -DP42SM
Post by: WILLYAM1 on July 29, 2010,16:14:41

thanks brainstorm.
after  well and deep checking in y sus  i made the follw steps.
1-i took out(desemble) the ydrive (scan)42v-psh30-00(high-upper)and got:
upper screen is black and lower screen with very good and clear pic..
2- took out the y drive 42v-psl30-00(low-down)and got noisy and not clear  like photos above.
i think the problem is upper y scan.
i will send photos .
 my main conncern is  thin vertical in upper and lower screen.
any aidia????

Title: Re: daewoo -DP42SM
Post by: brainstorm on July 30, 2010,09:31:38

Hi

Yes william i agree you have got a faulty upper Y drive board fault, you may find just replacing that will cure the fault. But the thin horizontal line may indicate a screen defect, but you will only know if you fit a new upper Y drive board


Brian

Title: Re: daewoo -DP42SM
Post by: WILLYAM1 on August 02, 2010,08:29:41

thanks brainstorm.
i will order the 2 y drive and  post the resolt.
willyam1

Title: Re: daewoo -DP42SM
Post by: WILLYAM1 on August 11, 2010,16:15:19

hello everyone.
i got 2 y drive today from FLAT PANEL U.K.
I ASEMBELED THEM .
TV WORKS FINE.
some flashing dots and color is a littel beat splashing.
maybe some adjusment in y sus board.
keep posted .
willyam1.
thanks brain and waxhead.

Title: Re: daewoo -DP42SM
Post by: waxhead on August 11, 2010,17:12:58

Well done on the repair. :13:

sorry i wasnt much help. :wink1:

Title: Re: daewoo -DP42SM
Post by: WILLYAM1 on August 13, 2010,07:37:08

Hello everyone.
dose anyone have schematic diagram for ysus. adjusment dosn't help for splasing color problem and it sims to me like a discharge problem or like burn picture i will send some photos letter......
this problem is after changing 2 y drive and resistor RYI IN YSUS.
CAN ANYONEtell me plees what is the value of this resistor(2.2ohm/2w?????).
willyam1

Title: Re: daewoo -DP42SM
Post by: WILLYAM1 on August 30, 2010,15:17:05

hello everyone .
here are some photosof the last problem.
any idea?