Samsung 940BW Service Manual page 21

13-1-3 IP BOARD BLOCK(POWER) Parts
13-1-4 IP BOARD BLOCK( INVERTER ) Parts
I P BO A RD BO A RD
B LO C K B LO C K ( I N V N V ERT ER ERT ER )
D D C I n I nput put
+ 13V dc + 1 dc
+ 5 + 5V d V dc
A D I M I M + 3. 3 . 3V dc
B D I M I M + 4. 5V . 5V dc
POWER
DC INPUT
ON/OFF
DIM INPUT
I N V ERT V ERT ER ER PA RT PA RT
FULL
BRIDGE
CIRCUIT
INVERTER
CONTROL
IC
DRIVER
IC
C O N T RO C O RO L PA RT
13 Circuit Descriptions
Lamp
Lamp
Lamp
Lamp
FEED BACK
CIRCUIT
PROTECTION
CIRCUIT
13-3