Pll Adjustments - Icom IC-M602 Service Manual

5-2 PLL ADJUSTMENTS

ADJUSTMENT ADJUSTMENT CONDITION
LOCK 1 • Operating channel : ch P2
VOLTAGE • Receiving
2 • Operating channel : ch P2
• Output power
• Transmitting
3 • Operating channel : ch 70
• Receiving
• MAIN UNIT TOP VIEW
CP1
Lock voltage
check point for RX
L62
Lock voltage
adjustment for RX
MEASUREMENT
UNIT
MAIN Connect a digital
multi-meter or oscil-
loscope to check
point CP1.
Connect a digital
: Low multi-meter or oscil-
loscope to check
point CP2.
5 - 2
VALUE
LOCATION
3.8 V – 4.0 V
3.1 V – 3.3 V
2.7–3.7 V
ADJUSTMENT
POINT
UNIT ADJUST
MAIN L62
L73
Verify
L73
Lock voltage
adjustment for TX
CP2
Lock voltage
check point for TX