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Equipment Repairs => LCD TV forum => Topic started by: WILLYAM1 on February 14, 2012,07:59:43

Title: normende nd4260(p.s17pw26-4 v.1)
Post by: WILLYAM1 on February 14, 2012,07:59:43

Hi to all.
first problem;led flickring and all volltages tripping.
change all capi and also ic for stby DL 321(I CHANGED DH 321) TV WAS WORKING fine a several  hours .
in the morning  i operet again to check and delevering to custumer and there is a  problem.
led stby light  by power its off( all volltage ok  no backlight and go to stby again) notice that pin inv /on no volltage and allso pin dim.
check inverter seems ok  not sure if prob is in p.s or main or inverter.
help needed .
willyam1

Title: Re: normende nd4260(p.s17pw26-4 v.1)
Post by: fix2003 on February 15, 2012,02:37:55

set would work ok when warm,
but when cold the LED went from red to blue to red again, sometimes the inverter would start for a split second.
check Changing IC830 ,FAN7711 in the PSU fixed the fault.


FAN7711 can cause many odd problems try replacing :thumbup:

Title: Re: normende nd4260(p.s17pw26-4 v.1)
Post by: WILLYAM1 on February 15, 2012,07:28:55

thanks VINCE.
its diffrent prob.
i found i short circet in the main board the short is in  i.8v path.
the hdmi ic is shorted.
think that i need ti replace a new main board.
thanks willyam1

Title: Re: normende nd4260(p.s17pw26-4 v.1)
Post by: WILLYAM1 on June 04, 2012,05:06:32

hi yo all.
i changed the smt ic SIL9185ACTU but steel no joy.
going back to stby no back light all volltage from p.s ok.
may be a reset needed.any help?.
willyam

Title: Re: normende nd4260(p.s17pw26-4 v.1)
Post by: WILLYAM1 on June 14, 2012,11:47:08

Hi to all.
were are the expert for the main board 17mb35-4?.
need help....
i found a lot of this board but its vot the same numbers in the white and the green labels.
its seems that its diffrent software or?.
17mb35-4 10069033 20515440.
help........
willyam1

Title: Re: normende nd4260(p.s17pw26-4 v.1)
Post by: fix2003 on June 15, 2012,02:59:26

if not the same numbers in the white and the green labels
then yes software diffrent
posible to  change eeproms / flash from old board ??

Title: Re: normende nd4260(p.s17pw26-4 v.1)
Post by: WILLYAM1 on June 15, 2012,05:15:48

hi.
thanks FIXITNOW.
I WILL try to repair the board if no.
hellpless.
willyam1.
is there any source that sale or manufecture this preticeler board?.