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Equipment Repairs => LCD TV forum => Topic started by: yellowpinky on March 11, 2010,06:46:24

Title: Acoustic Solutions LCD 26805HD
Post by: yellowpinky on March 11, 2010,06:46:24

Hello Group,
This set will not come out of standby.
The blue standby led stays lit.
I have replaced the power supply board with a known working one and have isolated the fault to the signals/micro board.
The board is a Vestel 17MB24H-2.
I have tryed another eprom and checked the s/m fuses.
Has anyone had this fault or successfully repaired one.
Best regards Ian Harrison (Sound and Vision)
ianharrison40@hotmail.co.uk

Title: Re: Acoustic Solutions LCD 26805HD
Post by: daz on March 12, 2010,05:17:08

take a pic of the pcbs, might jog mem
daz

Title: Re: Acoustic Solutions LCD 26805HD
Post by: yellowpinky on March 12, 2010,13:07:35

Hello Daz,
17MB24H-2 board.
Best regards Ian.

Title: Re: Acoustic Solutions LCD 26805HD
Post by: daz on March 13, 2010,04:08:19

Hi Ian,
Had the same fault on a similar AS tv, turned out to be D101 short on the lvds pcb holding the set in standby,
good luck
daz

Title: Re: Acoustic Solutions LCD 26805HD
Post by: yellowpinky on March 16, 2010,04:15:18

Hi Daz,
Thanks for the input.
I have bought a s/h 17mb24h-2 board from Ebay and have got the set running, but have another fault.
It produces a picture for a few seconds and then breaks up into vertical lines. It looks like the problem you get with the lvds lead from the main board. The customer said it was ok before it went off. I think I have replaced one faulty board with another, but have no way to check it with out buying another one.
Looking forward to a better time this week.
Regards Ian.

Title: Re: Acoustic Solutions LCD 26805HD
Post by: daz on March 16, 2010,04:33:22

Hi Ian
Check regs on main pcb and lvds pcb are kicking out correct voltages, possible you’ve bought a duff pcb but sounds likes the screen is duff, try twisting it, see if pic comes back.
And you should know better than believing what customers say,
Good luck
Daz

Title: Re: Acoustic Solutions LCD 26805HD
Post by: pol-uk on March 17, 2010,03:59:28

What you got an screen inside ?? Regards

Title: Re: Acoustic Solutions LCD 26805HD
Post by: yellowpinky on March 22, 2010,08:56:24

Hi Group,
I have replaced the board again and found the one from Ebay was faulty.
It has a free 30 day returns policy, so I will return it.
Thanks for the help.
Ian Harrison(Sound and Vision)