LG 42LH90 - Front Panel Control Lock (Key Lock); Enabling and Disabling Key Lock

LCD DV 42LH90
49
February 2010
Inverter 27V (M 1
Inverter 27V (M 1
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M4 Power Supplies) Information
M4 Power Supplies) Information
There are actually 4 power supplies developing
the operational B+ (27.5V) for the LED blocks.
They are designated as “M1 through M4”.
Each of the 4 have the same components.
M1
M2
M3
M4
27.5V
TP
Each of the 4 capacitors C12, C27, C212 and
C227 have a TP just above the (+) leg of the cap.