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Equipment Repairs => PLASMA TV forum => Topic started by: sabre504 on December 13, 2011,14:11:58

Title: Dead Goodman GTV42P6
Post by: sabre504 on December 13, 2011,14:11:58

Hi I have a Goodman  GTV42P6  plasma that I picked up to play around with (never touched one before) with the aim of repairing it so the kids can use it with the games consoles .
Bought as dead no power or standby lights opened it up and checked the psu after reading about repair kit and tested what I could before replacing the blown fuse .
Screen now lights up but is grey and there is still no standby light .
The boards either side have green led’s on them that are lit .
Basically is it worth buying a psu repair kit and seeing how it goes from there any input welcome can do pictures if needed
Paul

Title: Re: Dead Goodman GTV42P6
Post by: sabre504 on December 22, 2011,13:19:24

Ok bought a kit

IC1004 FSD200
IC1005 PC817 op coup
D1001 B250/1500 Bridge rec
R1018 R1019 22K 3Watt res
D1012 FUF4007 Diode
FS1001 3.15 amp fuse
ZD1002 Zner 12v

Also changed C1031 as it was swollen and C1023 bit charred .

As yet not changed the zener as i wanted to check voltage before fitiing
one side showed no volts other showed 0.7v and still have grey screen no standby light

Title: Re: Dead Goodman GTV42P6
Post by: fix2003 on December 23, 2011,03:01:33

beware there are two different
versions of this board, when
replacing zener diode Z D 1 0 0 2 on th e
secondary check w hich part you take
out, the k it comes with a 1 2 volt
zener B Z X 5 5 - C 1 2 but some versions
are fitted with a I N 4 7 4 6 which is a 1 8
volt zener, if you fit a 12 volt zener
place of the 18 volt the set will work
normally for awhile then the diode
will go short circuit.

Title: Re: Dead Goodman GTV42P6
Post by: sabre504 on December 23, 2011,10:28:00

Hi Vince
Thanks that was the reason i was trying to measure it before i changed it
I will have to take it off the board and see if i can see any markings on it and try to trace back to see if there any other components that have shorted

Title: Re: Dead Goodman GTV42P6
Post by: sabre504 on December 23, 2011,11:21:49

Right problem solved  thanks to FIXITNOW i went back and rechecked everything tracing as to why i had no voltage at the zener diode .
All components checked ok until out of frustration i checked the fuse and it was dead popped in a new one and all fired up .

So moral of this misadventure even if its new check it  :s_laugh:
 :c017: