Techwood TWP 4205. Board: LJ44-00049A

[speedypro]

Got this projection tv with no display. No Va, Vset and no 5V to YSUS board. Has anyone repaired this board before?

No sign of damage on board. Board on internet seems expensive.

[tom66]

Re: Techwood TWP 4205. Board: LJ44-00049A

Projection? You mean plasma?

Pic of power board?

[speedypro]

Re: Techwood TWP 4205. Board: LJ44-00049A

Projection? You mean plasma?

It is plasma but it's not a "TV" as in a full TV. cant explain it as I've never seen this before.

Pic:

[tom66]

Re: Techwood TWP 4205. Board: LJ44-00049A

You have power light and standby?

[speedypro]

Re: Techwood TWP 4205. Board: LJ44-00049A

You have power light and standby?

Yes. It also turns green when connected to its source. This source is like a receiver.

[tom66]

Re: Techwood TWP 4205. Board: LJ44-00049A

See any pson or vson pins on power board?

[speedypro]

Re: Techwood TWP 4205. Board: LJ44-00049A

No. None

[vinceroger69]

Re: Techwood TWP 4205. Board: LJ44-00049A

good pic here showing the pinouts
http://www.shopjimmy.com/samsung-lj4...upply-unit.htm

[tom66]

Re: Techwood TWP 4205. Board: LJ44-00049A

Connector next to "SL"... Does that go to main board or another part

[speedypro]

Re: Techwood TWP 4205. Board: LJ44-00049A

See pic:

[tom66]

Re: Techwood TWP 4205. Board: LJ44-00049A

That's control board, then. Check the VS ON and PDP GO signals.

[speedypro]

Re: Techwood TWP 4205. Board: LJ44-00049A

That's control board, then. Check the VS ON and PDP GO signals.

Should I get a voltage at VS ON? If so, no voltage. Those two fuses are ok. No voltage at any of those fuses.

[sachin]

Re: Techwood TWP 4205. Board: LJ44-00049A

You have power light and standby?

board; LJ44-00049A