AVS Forum Special Member
Join Date: Dec 2007
Location: Madison, Alabama
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 208 Post(s)
Originally Posted by Teseract
My WD-65736 purchased in July 2008 started with the black/white dots issue a few weeks ago with a single one dead center in the picture... now I have 2 with another one "flickering". They seem to flicker for a bit then lock in the "off" position. I also have the "haze" another person reported.
I guess I'll call Mitsu and see if they're still doing the $200 labor replacement program... if not I guess I'll have to buy the replacement part online and do it myself.
I can afford a new TV but I'd really rather wait another few years for 4K to go more mainstream... I'm a little annoyed since this is after I finally forked out for the genuine Mitsu lamp because all the after-market ones developed an annoying flicker/pulsing after 3-4 months of use.
You can get the chip at ShopJimmy. They also have installation videos. The DMD board is mounted in a metal frame and is held in place by 6 or 7 small screws -- just like those that hold a PC motherboard to a motherboard tray. It helped me to take some masking tape and put it on the four sides of the board. You'll just need 3" strips and make sure they are taped real good to the metal frame. Take a thin sharpie and make a mark that goes across the "gap" from board to metal frame. Take an Exacto knife, or other precision knife, and cut the tape where the gaps are. This will give you alignment marks when you put the board back in. No way the alignment is going to be perfect but it being a little bit off is much easier to correct in the Service Menu. Access the service menu with the TV's remote by pressing -- MENU + 2457 + 0. The "0" brings up a menu. Use up/down and select/enter to choose the Manual Adjustment option. You should be able to adjust 16 points for keystone and then there are several options for 4:3 pillarbox.
The DMD chip has a glass cover and the mirrors aren't actually exposed. The haze builds up on the surface of the glass and can be wiped off with a microfiber cloth. I didn't have any on my DMD when I replaced it, so it might be due to something from the outside environment ( like cigarette smoke ) getting into the TV. Maybe a leak in the seal that is supposed to cover the DMD and board.
Denon AVR X7200WA, Emotiva XPR-5, Emotiva XPA-7, Sony XBR 75" 850C, Oppo UDP-203, Roku Ultra.
DefTech BP7000SC (L/R), CLR3000 (C), SM55 (FH), UIW BPZ/A (SB), UIW 75 (TM).
JBL L7 (Sur), EoSone RSR 350 (RH).
PC 2.1 setup. Emotiva Stealth 6, SVS SB16-Ultra sub, Emotiva DC-1 DAC.