Vertex Standard VX-4200 Series Service Manual page 49

13.6 V
DIMMER LEVEL 3: 10.0 V
RX: 0 V
TX: 5.0 V
DIMMER LEVEL 3: 5.0 V
RX: 5.0 V
TX: 0 V
CONTRAST LEVEL 8: 4.3 V
RX: 5.0 V
TX: 0 V
HOOK OFF: 5.0 V
HOOK ON: 0 V
13.6 V
FRONT-D Unit (VX-4200: Lot. 1~5)
CONTRAST LEVEL 8: 5.7 V
5.0 V
8.6 V
Circuit Diagram
5.0 V
J-1