I have a VIZIO VX32L (Dec 2006) with mainboard 3632-0101-0150 (4A)
that will powerup, VIZIO light lit, screen backlit, no sound, no picture
and can not power down - must unplug. This happened after running the
channel scan and when exiting the menu it locked up. At this point,
could not do anything via the controls and proceeded to unplug it.
Upon powerup it has have the above mentioned symptoms since.
I have verified all the basics, fuses and DC-DC supply and regulator
voltages are good, which I would tend to expect.
I ran across a fix for the processor reset circuit (pull low) that
adds a 10k resistor across pins 2 & 3 of U26. My mainboard has a spot
for U26 (8 pin device) but nothing populated. The device shown in the fix
was a 4 pin device. I have not been able to find a diagram for this
board or a datasheet for the processor MT5372AJ.
Does anyone out there have any info to help me match this fix with my main
board?
Based on how this thing failed it seem like a worth while guess to persue.
Any ideas or other things to check?
that will powerup, VIZIO light lit, screen backlit, no sound, no picture
and can not power down - must unplug. This happened after running the
channel scan and when exiting the menu it locked up. At this point,
could not do anything via the controls and proceeded to unplug it.
Upon powerup it has have the above mentioned symptoms since.
I have verified all the basics, fuses and DC-DC supply and regulator
voltages are good, which I would tend to expect.
I ran across a fix for the processor reset circuit (pull low) that
adds a 10k resistor across pins 2 & 3 of U26. My mainboard has a spot
for U26 (8 pin device) but nothing populated. The device shown in the fix
was a 4 pin device. I have not been able to find a diagram for this
board or a datasheet for the processor MT5372AJ.
Does anyone out there have any info to help me match this fix with my main
board?
Based on how this thing failed it seem like a worth while guess to persue.
Any ideas or other things to check?
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