NXR Actia

[faradohm]

i think you'l get time by interchanging µP board with spare one

[alprenx]

Its not big, can attach as image. I have only one page, sadly.

I think i found the problem, R250 seems burned

Assume it is 250 ohm ?

20210915_142746.jpg

[alprenx]

False alarm, its just component glue

Yes, i will try some spares

[faradohm]

let's try...!

one page implantation alone..?

i think 0.250, seem a short cicuit?

i control cicuit batt charge..?

[alprenx]

Here is the file i have, R910 near U900, top left corner

https://easyupload.io/w8w5df

[alprenx]

values 3.3 and 5 v
points on yellow cms cond

This one ?

20210915_145652.jpg

[faradohm]

thank's for page

wich con's , don't remember , not at home!
wait and see tomorrow...

[faradohm]

but verify these one

20210915_145652.jpg

[alprenx]

Top : 5v
Bottom left : 7v
Bottom right : 3.2v

[faradohm]

all's right....
inferior card in fault...
the diffculty is to scop overther ,
to see osc and reset of µP,
but with supply's from upper card connected.

[alprenx]

You mean the bottom card has fault ?

[faradohm]

what is bottom.?
under screen side il would say

[alprenx]

The computer main board

20210915_155707.jpg

[faradohm]

here's!
but not supplied now

[faradohm]

and i see trace moisture!
disconect fluo retro light , and vidéo lcd napp,
un-screw an extract this card to see reverse!

therefore solvent cleaning and protective varnish