3 - 7
• D/A CONVERTER (MAIN UNIT: IC1)
• D/A CONVERTER (MAIN UNIT: IC2)
LINE
NAME
DESCRIPTION
TRXS
Antenna switching (TX/RX)
TX, over input=5V, other conditions:0V
BAND
N/C (RF UNIT: CP502)
-
POCV TX output power setting
0 (TX low)–5V (TX high)
FANV
Cooling fan rotation speed control
0 (Stop) –5V (max. speed)
ID1V
Idling current control (Pre-driver)
In proportional Voltage vs Current (IPD)
ID2V
Idling current control (driver 1/2)
In proportional Voltage vs Current (IDL)
ID3V
Idling current control (driver 2/2)
In proportional Voltage vs Current (IDL)
ID4V
Idling current control (Final AMP 1/2)
In proportional Voltage vs Current (IDL)
ID5V
Idling currrent control (Final AMP 2/2)
In proportional Voltage vs Current (IDL)
UNSB
N/C
–
DRVC
Drive gain control
–
ICCV
APC current adjustment
ALC line control
LINE
NAME
DESCRIPTION
REFV
Reference fequency adjustment
VCT4
RX 1st IF AMP tunig voltage
VCT5
RX 1st IF AMP tunig voltage
AJLC
ALC control
Summary of Contents for IC-7200
Page 1: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 19 VOLTAGE DIAGRAM 21 Jun 2009 ...
Page 33: ...Oct 2008 SERVICE MANUAL ADDENDUM CONTENTS BOARD LAYOUTS LOGIC AND MAIN UNITS 1 Nov 2008 ...
Page 38: ...Oct 2008 SERVICE MANUAL ADDENDUM CONTENTS BOARD LAYOUTS RF AND MAIN UNITS 1 Oct 2008 ...
Page 74: ...S 14513XZ C1 Oct 2008 HF 50MHz TRANSCEIVER ...
Page 135: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14513XZ C1 2008 Icom Inc ...