Question about Mitsubishi WD-62327 62" Rear Projection HDTV-Ready Television
I have the same tv , the warning for the bulb came on about a month ago and the tv went dark on Friday the 9th. I got another bulb but it doesn't work. The power comes on, there is a humming noise like a jet engine starting up, but not as loud (lol) then the noise repeats itself. Then the lamp light blinks green, then turns solid red. Could this be the ballast and is that easy to replace? I also put the light inside without the cage to make sure the connection was true and I put a screwdriver in the slot in front as though the cover was on. The light still didn't work. What gives?
Check mitsubishi updated service flash. remove the thermal sensor and put a jumper across the connctor. if this does not fix it then replace the power board.
Posted on Dec 14, 2007
Not likely to be the ballast... Let's throw this in for help, from the Mits ASC site:
Shuts Down With Red Lamp LED
1. Unit powers on and works properly for a while then shuts off with a red lamp LED (lamp error). Suspect bad lamp part # 915P020010 2. Lamp enable line at J14 pin 6 does not switch to 5 volts after turn on, 12 and 5 volt supplies are good. Suspect the Light Engine part # 939P977020 3. At power on the lamp turns on and off three times and then the unit shuts down with a red lamp LED (lamp error). Replace the Light Engine part # 939P977020 4. Check for 12-volts DC at J-9 connector pin 4 on the Engine Driver PCB, if missing check for an open F9A09 on the Power PCB, if it is open replace F9A09 part # 283P127060 and the Light Engine part # 939P977020 5. Lamp enable line at connector J14 pin 6 on the Engine Driver PCB switches to 5 volts after turn on but does not go back to 0-volts (low) after 5 seconds, 12 and 5 volt supplies are good. Suspect the Light Engine part # 939P977020 6. Check for 5-volts DC at J-9 connector pin 1 and 2 on the Engine Driver PCB if low or missing check C9A37 and C9A38 both 3300 UFD 10 V part # 181P732040 on the Power PCB part # 934C148001 From the noise you described it could also be that the color wheel is failing. Fans and the color wheel can cause shutdown. And if any of this sounds too complicated it's time to bite the bullet and take it into the shop. Find a reputable shop and one that will give you a written estimate before proceeding. If you ned help locating one try the NESDA locator: http://www.nesda.com/locator/state_search.php Hope this helps. Bill
Posted on Nov 15, 2007
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