SHARP PN-R703 Schematic

[Wampo]

Hy Peoples,

today ive got a 70inch Sharp Industry Monitor from work. The Monitor doesent work anymore but i will fix it.

Can anybody help me with schematics or boardviews or any other stuff for repairing

Greetings from Germany Daniel

[Wampo]

Re: SHARP PN-R703 Schematic

This is the Monitor with Open case.

All Capaciators looking good. No Voltageflickering on any Capaciator (Measured with a Scope.

Did you think the Display is Fixable?
No Cracks on Screen this is the Image.

I Attached some Pics from the Monitor.

Greetings Daniel

[Wampo]

Re: SHARP PN-R703 Schematic

Okay, more Information is comming.

On the Little board with the two Ribboncable there is a chip but i cant lift up the (Stone) Heatsink.
If i remove the right ribbon from board, the display is just split BUT the Other side shows a bit better picture. If i connect the two ribbons the Screen lags, it is updating the screen very slow and it shows complete weird colors.

Greetings from Germany Daniel

[budm]

Re: SHARP PN-R703 Schematic

Looks like screen problem to me.

[Wampo]

Re: SHARP PN-R703 Schematic

I think not. I reflowed the LVDS Chip a little bit and the area moves away. Not complete but it is a lot better than before.

In the screen there is no crack or anything else.

I have ordered a new LVDS Chip from chinese, lets try this one first.

But if it is really the Screen himself, can i fix this problem.