LeCroy WaveSurfer 400 Series Service Manual page 138

No Display (Internal or External) (continued)
Power Switch
6-52 Maintenance
Ext Battery
Control
Inverter Power
TFT Video
R
A
M
USB
R W
B B G W R
+5 +5 -5
Gnd Gnd Gnd
D D
Power
+12 +5 +5
Gnd Gnd
SB OK D
G B B
Audio
Power
-12 +3.3
Gnd
On/Off
+5 +3.3 +3.3
Gnd
D