Re: Looking for some Help Hannsg HD281D flashing BLUE led startup

Thanks all

Re: Looking for some Help Hannsg HD281D flashing BLUE led startup



Yep I know, but using the other as working PC monitor, dont want to strip down but, if i have to. Wanted to see if anyone could help rather than blindly checking. Appreciate your help

dave...

Re: Looking for some Help Hannsg HD281D flashing BLUE led startup



yep looks exactley the same,

i have 2 same monitors, 1 perfectly working ok, took psu board and placed in the faulty display and all worked ok.
so my (smaller) pcb the main board is ok??
swapping the main psu only made the faulty unit work.

thanks the pson signal does sound right though

dave...

Re: Looking for some Help Hannsg HD281D flashing BLUE led startup



Hi Thanks, there is only 1 main fuse, thats OK , nothing else labelled with an F prefix, some 0 rated surface mount pieces all OK, thanks for your advice tho'
dave...

Re: Looking for some Help Hannsg HD281D flashing BLUE led startup



Thanks newer photos attached,
fixed original fault with digital input board, all ok working fine,
When it came time to fix all boards into place and full rebuild - this happened...
as i disconnected the cable from psu to inverter board it touched the rear of the lcd panel, and sparked across - this is when i heard the discharge noise.

I cant say for definate that it wasnt the psu shorting, this was in its place in the rear cover at the time, and it was being moved...

Hi guys, Feeling a complete idiot at the moment, fixed the distorted video and switching off after 10 secs, with replacement caps on the video signal board

After 1 hour of trouble free testing, unplugged mains and started to rebuild.

after i disconnected the lead from PSU to Inverter board it grounded out ( i think) and i heard a loud discharge noise.

Since then Blue led flashing only.

Checked all the main capacitors recommended for replacement elsewhere, all measured in limits with Fluke multimeter, uf seem all OK.
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