LG 50PS80 Training Manual page 72

Y Drive Floating Ground 5V and Scan Input Check
Y Drive Floating Ground 5V and Scan Input Check
Diode Mode Check: All checks from Floating Gnd.
BL = Black Lead on test point red lead on FG.
RL= Red Lead on test point black lead on FG.
Y Drive Upper P116 Y Drive Upper P116
1
Diode Check means the Digital Volt Meter is in Diode Mode, all connectors to PWB are removed.
These are These are
fragile
fragile
connections
connections
Floating
Floating
Ground Ground
5V FG
5V FG
n/c
n/c
VSCAN
VSCAN
72
Checked from Floating Gnd
Checked from Floating Gnd
BL: 0.76V BL: 0.76V
VSCAN
VSCAN
BL: 0.60V
5V FG BL: 0.60V
5V FG
Y Drive Upper P214 Y Drive Upper P214
1
August 2009 Plasma 50PS80
RL RL : Open : Open
RL : Open
RL : Open
These are These are
fragile
fragile
connections
connections
VSCAN
VSCAN
n/c n/c
5V FG
5V FG
Floating
Floating
Ground
Ground