74
Plasma Fall 2008 42PG20
Using the “Diode Test” on the DVM, check
the pins for shorts or abnormal loads.
Y Drive BUFFER Troubleshooting
Y Drive BUFFER Troubleshooting
YOU CAN CHECK Y
YOU CAN CHECK Y
-
-
DRIVE USING THIS PROCEDURE.
DRIVE USING THIS PROCEDURE.
RED LEAD ON “B”
BLACK LEAD ON “A”
FORWARD READING 0.73V
REVERSE READING “OPEN”
OL
+
-
+
-
BACK or FRONT SIDE OF
Y-DRIVE PWB
Any
where
A
B
VSC
n/c
FLOATING GND
n/c
Osc2 In
Osc1 In
LE In
CLK In
DATA In
n/c
n/c
+5V
BLACK LEAD ON “B”
RED LEAD ON “A”
Additional Readings
RED LEAD ON “B”
0.57V Black on Osc2
0.59V Black on Osc1
0.58V Black on LE
0.60V Black on CLK
0.78V Black on DATA
0.50V Black on +5V
BLACK LEAD ON “B”
OL Red on Osc2
OL Red on Osc1
OL Red on LE
OL Red on CLK
OL Red on DATA
OL Red on +5V
VSCAN CHECK
Summary of Contents for 42PG20 Series
Page 17: ...17 Plasma Fall 2008 42PG20 Rear Input Jacks Rear Input Jacks ...
Page 18: ...18 Plasma Fall 2008 42PG20 42PG20 Dimensions 42PG20 Dimensions ...
Page 45: ...45 Plasma Fall 2008 42PG20 STATIC TEST UNDER LOAD LIGHT BULB TEST ...
Page 98: ...98 Plasma Fall 2008 42PG20 TCP Tape TCP Tape Carrier Carrier Package Package ...
