Pll Adjustment - Icom IC-F310 Service Manual

5-2 PLL ADJUSTMENT

ADJUSTMENT ADJUSTMENT CONDITION
PLL LOCK 1 • Operating frequency: (Ch 1)
VOLTAGE
• Transmitting
2 • Receiving
3 • Operating frequency: (Ch 2)
• Transmitting
4 • Receiving
155.00000 MHz [L-band]
174.00000 MHz [H-band]
136.00000 MHz [L-band]
146.00000 MHz [H-band]
MEASUREMENT
UNIT LOCATION
MAIN Connect a digital
multi-meter or oscil-
loscope to the
check point CP1.
5 - 3
ADJUSTMENT
VALUE
UNIT
3.5 V [L-band] MAIN
4.0 V [H-band]
2.6–3.6 V [L-band]
3.0–4.0 V [H-band]
1.2–2.2 V [L-band]
0.6–1.6 V [H-band]
1.2–2.2 V [L-band]
0.6–1.6 V [H-band]
DC power supply
13.2 (13.6) V / 15 A
L14
PLL lock voltage
adjustment
CP1
PLL lock voltage
check point
POINT
ADJUST
L14
Verify