Originally Posted by hokiefan
Hi guys. My dad has a ws-65813 and it has done the random reboot thing a few times over the years. However, last night, it rebooted and failed to come back on. Also, he has a firewire cable between the TV and his computer, and noticed a lot of firebus errors around the same time that it rebooted for the last time.
Since the TV is several years old, I'm assuming its not under warranty anymore. I did some searching but the best I could come up with was the DM module could be faulty. Any ideas? Thanks.
You should contact Mitsubishi to get the firmware upgrade. The upgrade is to help fix the reboot issue.
This model is equipped with a self-diagnosis feature to help with diagnosis of shutdown problems. To activate this turn the unit on let it shutdown then press the device and menu buttons on the front panel simultaneously and hold them in for 5 seconds after 5 seconds the power LED on the front panel will blink a two digit sequence. This will be one set of blinks a short pause then another set of blinks, this will repeat 5 times. 1 - 2 = no error detected 2 - 1 = X-ray protect (high voltage or beam current) 2 - 2 = Short protect (short protect monitors low voltage supplies) 2 - 3 = Deflection protect (this could be loss of vertical or horizontal deflection) 2 - 4 = Vertical protect (usually loss of vertical from the source)
There are a few known issues for No power
1. PC9A10 on the Power PCB
2. LED does not blink at plug in, possibly the reset switch, S7L20 on the Control PCB.
3. LED does not stop blinking after plug in. DM PCB
4. 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 5. LED stops blinking after 70 seconds of plug in but will not power on. Suspect problems with the switches/buttons on the Control PCB
6. LED stops blinking after 70 seconds of plug in but will not power on. Keyboard is not locked, suspect the E2P PCB.
A Mitsubishi service tech should be able to fix this easily.