Standard Horizon QUEST-X GX1500S Service Manual page 15

25 watt vhf/fm marine transceiver
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RX: 7.00 V
RX: 5.70 V
RX: 2.75 V
TX HI: 4.13 V
RX: 0.73 V
TX LO: 0.55 V
TX HI: 4.50 V
RX: 4.35 V
TX LO: 2.33 V
TX: 0 V
TX: 6.51 V
RX: 0 V
TX: 4.35 V
TX: 1.70 V
TX: 2.00 V
3.34 V
TX: 1.26 V
3.58 V
RX: 4.90 V
TX: 0 V
RX: 7.80 V
TX: 0 V
TX HI: 0 V
TX LO: 4.88 V
RX: 0 V
8.00 V
5.00 V
TX: 8.00 V
8.00 V
13.75 V
13.10 V
8.00 V
RX: 0 V
4.90 V
RX: 5.00 V
TX: 5.00 V
TX: 0 V
13.80 V
13.80 V
4.90 V
13.10 V
RX: 5.75 V
RX: 7.00 V
RX: 2.75 V
RX: 0.70 V
RX: 7.70 V
RX: 7.40 V
RX: 1.82 V
RX: 0.22 V
RX: 1.06 V
3.88 V
3.45 V
5.55 V
7.00 V
0.99 V
0.74 V
5.00 V
5.00 V
1.80 V
5.00 V
RX: 1.00 V
RX: 7.50 V
RX: 7.70 V
RX: 0.25 V
RX: 0.30 V
RX: 5.59 V
RX: 6.86 V
RX: 0.74 V
RX: 7.00 V
RX: 2.30 V
4.60 V
5.00 V
VCO LOCK: 0.92 V
VCO UNLOCK: 5.00 V
5.00 V
2.50 V
MAIN Unit
Circuit Diagram
RX: 5.30 V
RX: 5.40 V
RX: 0.50 V
RX: 5.60 V
RX: 5.50 V
RX: 3.00 V
4.60 V
RX: 2.43 V
4.30 V
1.76 V
1.57 V
RX: 5.30 V
RX: 5.30 V
RX: 2.33 V
RX: 2.930 V
RX: 3.50 V
RX: 2.30 V
RX: 1.30 V
RX: 1.56 V
RX: 2.15 V
RX: 0.70 V
AUDIO MUTE ON: 4.90 V
13.80 V
AUDIO MUTE OFF: 0 V
15

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