Mitsubishi VS-45609

[minnie]

The "snap" connectors that you have to pull "up" between boards. Inspect them. What happens when you push them back down the metal taps do not seat. You have to inspect them and see if any of the wire are raised up. I take a small screw driver and push them back down. If the green light doesn't flash when you plug it back in sounds like you missed a connector or one of the interlock connectors isn't seated correctly.

[joetiz1]

Minnie
I checked all the connectors and they where fine,So I ended up taking the main board out of the television to try and troubleshoot it.I checked the voltage from D952 and had 14v at pin 3 I also checked T951 and had all voltage going in but could not see any votage coming out ..now I dont know if that is because I have the board out and all the plugs dissconnected.I also did not have the 24v at pin 3 of the DM connector from either board this was checked when the boards where installed it the TV..any advice

[minnie]

Start with the basics. Do you have your main B+, 28vdc so on. Trouble shoot the power supply. I still say you had a green light before, something may be unplugged.

[joetiz1]

Minnie I had the green light on steady originally then afetr I unplugged the set the green light dimmed out . I have power into and out of t952 but I only have power into t951 not out

[minnie]

With the board back in with the new IC do you get the green light still?

[joetiz1]

I will have to put the boards back in the set and check it again
but im almost positive the light was totally out.Prior to working on the tv after I plugged it back in when i unplugged it for 10 min the light only came on very dim and when you pressed the on button of the TV the dim light would go out and back on when you released the on/off button..same thing happenend when you pressed the menu & input button .I will keep you posted

[joetiz1]

minnie I put the 2 boards back I rechecked the 3 snap connectors and made sure all contacts where made .. I have no green light at all the set is dead as a door nail..Im just a bit confused you mentioned the B+ 28 v on the main board ...When I look at the schematic I can't find this 28v point >>> I have my 115 v into the set.i get 115v to T952 and it looks lik im getting 4v out and T951 has voltade in but none out. any ideas ?

[minnie]

This one is going to be a hard one. Time to throw in the phone book and have it fixed. It could be way too much. Unless you want to go to board level replacement. I'm showing main board is a #930B874001

[joetiz1]

Minne do you think this set is worth fixing ..Its not my main set just a spare set....How much would the board cost..I pulled the board out and did not see anything wrong with it ..Like burnt resistors or bad soler connections ect.

[minnie]

The board retails for $415. Where did you get the IC from?