Main Unit Circuit Diagram - Vertex Standard VX-230 Service Manual

RX: 0 V
TX: 0.9 V
–8 dBµ
7.4 V
TX 5W:1.1 V
PTT "ON": 0 V
7.4 V
PTT "OFF": 3.5 V
5.0 V
RX: 5.0 V
TX: 0 V
BUSY: 7.4 V
MUTE: 0 V
7.4 V
4.0 Vp-p @500 mW
RX: 2.1 V
TX: 0 V
–11 dBµ
RX: 0 V
TX: 3.9 V
TX 5W: 0.4 V
RX: 0 V
TX: 0.2 V
TX 5W: 2.2 V
RX: 0 V
TX: 5.0 V
1.9 V
6.7 V
RX: 2.6 V
TX: 0 V
–4 dBµ
+3 dBµ
RX: 0.7 V
TX: 0 V
4.2 V
2.5 V RX: 3.6 V
TX: 4.2 V
0.8 V
RX: 4.1 V
TX: 4.0 V
RX: 4.4 V
TX: 1.4 V
RX: 1.3 V
SAVE "ON": 0 V TX: 1.3 V
SAVE "OFF": 3.5 V
RX: 0 V
TX: 3.5 V
NORMAL TEMP.: 2.6 V
3.5 V
3.5 V
EXT.PTT
EXT.PTT
ON: 2.1 V
ON: 0 V
OFF: 4.0 V
OFF: 3.5 V
RX: 0 V
TX: 2.9 V
RX: 2.9 V
TX: 0 V
+7 dBµ
5.0 V
WIDE: 4.5 V
NARROW: 0 V
5.0 V
LOCK: 3.4 V
UNLOCK: 0 V
RX: 0 V
TX: 5.0 V
BUSY: 3.5 V
MUTE: 0 V
4.3 V
RX: 2.9 V
TX: 2.5 V
RX: 2.4 V
TX: 2.9 V
MAIN Unit
Circuit Diagram
0.7 V
RX: 5.0 V
TX: 0 V
17