Question about Mitsubishi WD-62525 62" Rear Projection HDTV
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Posted on Jan 02, 2017
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
Posted on Jan 03, 2008
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