Emerson BLC320EM9 A

[RJARRRPCGP]

Re: Emerson BLC320EM9 A

Any "KM" caps? If any, probably xtremely out of spec! (That's an alarming trend on the forums!)

[dcapper]

Re: Emerson BLC320EM9 A

Power supplies on those Emerson's are terrible. I have a 32 with a bad power supply. It's more expensive to replace the board than the tv is worth. I tried changing most of the parts on mine and still no go.

[Tedybear]

Re: Emerson BLC320EM9 A

PICTURE TIME!!!

Crap. Well it would be.

It keeps kicking up server errors.


I'll retry again later.

S-

[Tedybear]

Re: Emerson BLC320EM9 A

Yep, found that one last night when I was working on this. It's just a notice about minor changes from the service manual(s) to update anyone working on them. Sadly nadda thing about schematics and such.


I'll do some photos after I eat. At least we got the 62" Mit working. (comedy of errors. Defective bulb wiring--resolved. PO installed the bulb and punched the electrical connecter into the back of the set. And then we spent about an hour chasing down flippen safety switches. (We figured the set wasn't turning on due to the lamp cover switch being bad. Yeah...didn't see a micro switch for the rear dust cover....)

S-

[kasfamily]

Re: Emerson BLC320EM9 A

[Tedybear]

Hello.

Picked up a couple of sets this afternoon. Long drive for a headache(s).

Got the one fixed (Mit 62" DLP projection) Looks great, but out of date. Hope to flip it quick to recover the expense of the trip to pick up.


The problem child that is confusing me. Emerson BLC320EM9 A

Picked this one up at the same time for cheap enough. Screen does not appear cracked (which is not my #1 check, look for damage)

The TV does not make any effort to switch 'on'. Upon plugging it in, I do hear a relay click. (I get that if I allow everything to discharge over time and then plug it in)

No clear signs of cold solder joints, or bad capacitors. (They actually all look very good).

I'll post up some photos in the daytime when I get back to being fully awake. I've done some basic poking around.

Does anyone have a schematic of the power control system(s)? Fuse tests fine. The set just has zero power? The gent I picked it up from stated he was watching it in the morning fine...shut it off... Came back several hours later and it was totally 'dead'.

Like I said. I'll get some photos up in the morning. Just wondering about direction to take. I did some basic voltage checks on the main board. (Power board I think (and I'll double check this) puts out 170vdc to the main board. The main board has a transformer and a series of diodes and such. Most of the voltage readings at the various test points are odd. One points to a blown diode (hence asking for a schematic) It's the 3.3vdc line. It's reading 1/2 of the expected voltage.

Just asking for ideas. I'll post the photos quickly in the morning.

S-