Y-Drive Buffer Troubleshooting
You can Check for a shorted Buffer output using this check.
6 Ribbon cables communicating with the Panel
’
Using the “Diode Test” on the DVM, check
FRONT SIDEBACK SIDE
Any connector going to the Panel.
Electrodes) totaling 1080 lines determining the Panel’s Vertical
resolution pixel count.
the pins for shorts or abnormal loads.
BUFFER IC
(FGnd)
RED LEAD On
Floating Ground
BLACK LEAD On “ANY”
Output Lug Reads 0.80V
White outline on Left
BLACK LEAD On
Floating Ground
RED LEAD On “ANY”
Output Lug Reads Open
Any of these output lugs can be checked from
Indicated by white outline
June 2011 42PW350 Plasma
10 3
floating ground. Look for shorts indicating a
defective Buffer IC
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