LG 50PJ340 Training Manual - Page 66

Y-Drive Board Layout

Page 66 highlights

Y-Drive Board Layout Y-DRIVE UPPER (TOP) Y-DRIVE LOWER (BOTTOM) Key Points of interest are; If the lugs for Floating Gnd and Scan are making contact with the Y-SUS board and the connector P205 or the one between Upper and lower P204/P110 are removed, the Y-SUS board will fail. Floating Ground is delivered to each of the Y-Drive boards by 2 screw lugs. Scan is delivered to each of the Y-Drive boards by 1 screw lugs. Each of the Y-Drive boards operate from Floating Ground, (no reference to Chassis Gnd). Floating Gnd 5V can be measured across C105 (Upper) or C205 (Lower). 66 July 2010 50PJ350 Plasma

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66
July 2010
50PJ350
Plasma
Key Points of interest are;
If the lugs for Floating Gnd and Scan are
making contact with the Y-SUS board and the
connector P205 or the one between Upper and
lower P204/P110 are removed, the Y-SUS board
will fail.
Floating Ground is delivered to each of the
Y-Drive boards by 2 screw lugs.
Scan is delivered to each of the Y-Drive boards
by 1 screw lugs.
Each of the Y-Drive boards operate from
Floating Ground, (no reference to Chassis Gnd).
Floating Gnd 5V can be measured across C105
(Upper) or C205 (Lower).
Y
-
Drive Board Layout
Drive Board Layout
Y-DRIVE UPPER
(TOP)
Y-DRIVE LOWER
(BOTTOM)