Icom IC-T7H Service Manual page 13

• 1F UNIT
FREQUENCY
COUNTER
100 MHz–500 MHz
C369
PLL frequency adjustment
(Adjustable via openings
on the 2F unit)
ULV*
PLL lock voltage check
point for UHF
L303
PLL lock voltage
adjustment for VHF
*Located on the underside of the 1F unit.
• 2F UNIT
RF POWER METER
10 W 50
FREQUENCY
COUNTER
100 MHz–500 MHz
R302
VHF output power
adjustment (High)
R316
VHF output power
adjustment (Low)
R313
UHF output power
adjustment (Low)
R304
UHF output power
adjustment (High)
• LOGIC UNIT
ATTENUATOR
40 or 50 dB
R147
DTMF or Tone call
deviation adjustment
5 - 2
L301
PLL lock voltage
adjustment for UHF
VLV*
PLL lock voltage check
point for VHF
DC POWER SUPPLY
13.5 V / 3 A
FM DEVIATION METER
100–500 MHz
AUDIO GENERATOR
300–3000 Hz
1–500 mV
DC POWER SUPPLY
13.5 V / 3 A
R314
UHF frequency
deviation adjustment
R308
VHF frequency
deviation adjustment