Question about Mitsubishi WD-62525 62" Rear Projection HDTV
I have a 73'' mitsubishi 1080p rear projection tv white dots started appearing on screen how do i fix?
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Posted on Jan 02, 2017
1. Check for no 8.4 volts DC at pin 3 of PC9A10 on the Power PCB, if low or missing replace PC9A10 part # 268P058020. 2. LED does not blink at plug in. Check for 3.3-volts DC at connector RF pin 3 (system reset) if low or missing suspect the reset switch S7L20 part # 432P109010 on the Control PCB. 3. LED does not stop blinking after plug in. Verify the standby supplies, 12-volts at connector KA pin 17, 6-volts at KA pin 18 and the 28-volts at KA pin 19, if the supplies are present suspect the DM PCB part # 934C067002 4. LED does not stop blinking after plug in. Check C9B01, C9B02, C9B10, and C9B11 (1000 UFD 16) on the DM PCB, if they are bad replace them with part # 181P734030 (680 UFD 16 V). 5. LED stops blinking after 70 seconds of plug in but will not power on. This model is equipped with a keyboard lock feature; this can be mistaken as a no power condition. To unlock the keyboard press and hold the "menu" button on the front panel for 10 seconds 6. LED stops blinking after 70 seconds of plug in but will not power on. Check for 3.2 volts DC at connector RF pin 4 and 5 on the Signal PCB if low suspect problems with the switches/buttons on the Control PCB part # 935D736001 7. LED stops blinking after 70 seconds of plug in but will not power on. Keyboard is not locked and key inputs at connector RF pin 4 and 5 check good suspect the E2P PCB part # 934C061001
Posted on Sep 05, 2007
Dot problem in Sony DLP TV caused by bad light engine (optical block)
Its costly part and needs qualified TV tech to fix it.
Posted on Jul 25, 2009
This could actually be an issue with either your DMD board or your Video board. With the TV on, select your menu, if the white dots are still there, the issue will be with the DMD board, but if they don't appear on the menu, the issue would be with the Video board.
Posted on Jul 30, 2009
Power supply board have dead parts.Tries Websites Shopjimmy.com,Ebay.com to buy a refurbish power supply board for replacement.
Posted on Feb 22, 2010
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