Icom IC-M36 Service Manual - Page 4

Frequency Adjustments, Adjustment, Transceiver's, Condition, Operation, Value, Jig Cable - antenna

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Feb. 2012 (Replacement page) 5-2 FREQUENCY ADJUSTMENTS Select an adjustment item using keys, then set to the specified value using keys on the connected PC's keyboard. ADJUSTMENT ADJUSTMENT ITEM TRANSCEIVER'S CONDITION OPERATION VALUE PLL LOCK 1 VOLTAGE (VERIFICATION) 2 [LVIN] (I/O check window) • CH. : 16 • Receiving • CH. : 16 • TX power : Low • Transmitting 1) Connect an RF power meter (or a Dummy load) to the antenna connector. 2) Verify that the lock voltage is in the specified range on the "I/O check window" (see the illust below). 1.9-2.9 V (Verify) 1.7-2.8 V (Verify) REFERENCE FREQUENCY 1 • CH. : 16 • TX power : Low [Ref. Freq.] • Transmitting 1) Connect an RF power meter (or a Dummy load) to the antenna connector. 2) Loose couple a Frequency counter to 156.8000 MHz the antenna connector. 3) Adjust the TX frequency. (Loose Coupling) RF POWER METER (10 W/50 Ω) JIG cable FREQUENCY COUNTER (0.1-300 MHz) I/O CHECK WINDOW LOCK VOLTAGE Click to reload the parameter (The values shown in the above screen are example only. Each transceiver has their own values.) 5 - 3

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ADJUSTMENT
ADJUSTMENT
ITEM
TRANSCEIVER’S
CONDITION
OPERATION
VALUE
PLL LOCK
VOLTAGE
(VERIFICATION)
1
[LVIN]
(I/O check
window)
• CH.
: 16
• Receiving
1)
Connect an RF power meter (or a
Dummy load) to the antenna connector.
2)
Verify that the lock voltage is in the
specified range on the "I/O check
window" (see the illust below).
1.9–2.9 V
(Verify)
2
• CH.
: 16
• TX power
: Low
• Transmitting
1.7–2.8 V
(Verify)
REFERENCE
FREQUENCY
1
[Ref. Freq.]
• CH.
: 16
• TX power
: Low
• Transmitting
1)
Connect an RF power meter (or a
Dummy load) to the antenna connector.
2)
Loose couple a Frequency counter to
the antenna connector.
3) Adjust the TX frequency.
156.8000 MHz
5-2 FREQUENCY ADJUSTMENTS
RF POWER METER
(10 W/50
Ω)
JIG cable
(Loose Coupling)
FREQUENCY COUNTER
(0.1–300 MHz)
LOCK VOLTAGE
I/O CHECK WINDOW
Click to reload
the parameter
(The values shown in the above screen are example only.
Each transceiver has their own values.)
Select an adjustment item using [
↑
] / [
↓
] keys, then set to the specified value using [
←
] / [
→
] keys on the connected PC’s keyboard.
Feb. 2012
(Replacement page)