5 - 4
LV
PLL lock voltage
check point
C134
PLL lock voltage
adjustment for TX
C133
PLL lock voltage
adjustment for RX
DC power supply
13.8 V / 10 A
5-2 PLL ADJUSTMENT
PLL LOCK
VOLTAGE
1
2
3
4
• Operating freq. : 450.000 MHz
• Receiving
• Output power
: Low1
• Transmitting
• Operating freq. : 500.000 MHz
• Receiving
• Output power
: Low1
• Transmitting
MAIN Connect a digital multi-
meter or an oscillo-
scope to the check
point, “LV”.
1.0 V
1.0 V
3.3–4.5 V
3.3–4.5 V
MAIN
C133
C134
Verify
ADJUSTMENT
ADJUSTMENT CONDITIONS
UNIT
LOCATION
VALUE
UNIT
ADJUST
MEASUREMENT
ADJUSTMENT
Содержание IC-400PRO
Страница 1: ...UHF TRANSCEIVER i400PRO SERVICE MANUAL...
Страница 27: ...SECTION 9 BOARD LAYOUTS 9 1 FRONT UNIT TOP VIEW 8V 1 to Microphone 7 2 8 J1 AFO MICE GND CLO PTT MIC CLI 9 1...
Страница 30: ...SP 14 8 1 1 7 14 8 7 16 9 1 8 12 24 1 13 9 4 BOTTOM VIEW MAIN UNIT...
Страница 35: ......
Страница 36: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14003HZ P2 C 2003 Icom Inc...