Idling Adjustment - Icom ID-52A Service Manual

4-3 TRANSMIT ADJUSTMENTS (CONTINUED)
Select an adjustment item using [RX→CS]/[DR], and then set the adjustment value as specified using [DIAL].
ADJUSTMENT
IDLING 1 • Adjustment item: ID7
ADJUSTMENT
~Drive amplifier~
-At 7.4 V-
(VHF)
(High Power)
(Mid Power) 2 • Adjustment item: ID7
(Low2 Power)
3 • Adjustment item: ID7
(Low1 Power) 4 • Adjustment item: ID7
(S-low Power) 5 • Adjustment item: ID7
(UHF) 6 • Adjustment item: ID7
(High Power)
(Mid Power) 7 • Adjustment item: ID7
(Low2 Power) 8 • Adjustment item: ID7
(Low1 Power) 9 • Adjustment item: ID7
(S-low Power)
10 • Adjustment item: ID7
DUT'S CONDITION
• Adjustment frequency:
Expect for [USA]:
145.000
For only [USA]: 146.000
• Adjustment frequency:
Expect for [USA]:
145.000
For only [USA]: 146.000
• Adjustment frequency:
Expect for [USA]:
145.000
For only [USA]: 146.000
• Adjustment frequency:
Expect for [USA]:
145.000
For only [USA]: 146.000
• Adjustment frequency:
Expect for [USA]:
145.000
For only [USA]: 146.000
• Adjustment frequency:
Expect for [USA]:
435.000
For only [USA]: 445.000
• Adjustment frequency:
Expect for [USA]:
435.000
For only [USA]: 445.000
• Adjustment frequency:
Expect for [USA]:
435.000
For only [USA]: 445.000
• Adjustment frequency:
Expect for [USA]:
435.000
For only [USA]: 445.000
• Adjustment frequency:
Expect for [USA]:
435.000
For only [USA]: 445.000
OPERATION
• Connect the ammeter between the DC power
supply and the DUT.
• Connect the RF power meter to the antenna
connector.
• While transmitting, set the DC power supply
voltage to 7.4 V.
• While transmitting, adjust the idling current using
[DIAL], and then push [ENTER] to store the
adjustment value.
4-4
VALUE
100 mA
(Within ±10 mA)
20 mA
(Within ±5 mA)
100 mA
(Within ±10 mA)
20 mA
(Within ±5 mA)
Continued on the next page�