Icom IC-2000H User manual

144MHz FM TRANSCEIVER
IC-2000H
IC-2000
Icom Inc.

SECTION 1
SECTION 2
SECTION 3
3 - 1
3-2
3-3
3-4
3-5
SECTION 4
4 - 1
4-2
4-3
SECTION 5
SECTION 6
SECTION 7
7 - 1
7·2
SECTION 8
8 - 1
8-2
SECTION 9
SECTION 10
TABLE OF CONTENTS
SPECiFiCATIONS.................................................................... 1-1
INSIDE VIEWS. ....................................................................... 2-1
CIRCUIT DESCRIPTION. .................................................... .. 3 - 1to 3 -4
RECEIVER CIRCUITS .......................... , ,.... .. .... .. ... . .. .. ....... . ... .. .... .. 3 - 1
TRANSMITIER CIRCUITS. .. ....... .. .... .. ......... .. ... .. ..... ... .. .. .. ... ... .. ... .. .. 3- 2
PLL CIRCUITS. ... ... ... .. ... ...... ... ...... .. ....... .. .. ... .. ....... .. ..... ... .... .... 3- 3
POWER SUPPLY CIRCUITS. ...... .. .... .. .... .. ....... . .. . ...... ...... ... ..... ...... ... 3- 3
PORT ALLOCATIONS. . .. .... .. . ..... .. ... .. .. .......... .. .. ...... .. ... ... ...... .. ...... 3 - 4
ADJUSTMENT PROCEDURES. .............................................. .. 4 -1 to4 -2
PLL ADJUSTMENT. ..... .. . .... ......... . ... ... .. . ......... ... ..... .. .. .. ........ ...... 4 - 1
RECEIVER ADJUSTMENT. ... .. ... .. . .. ........ .......... .. ..... . ... ...... ........ .. .... 4 - 1
TRANSMITIER ADJUSTMENT. . . .. ....... ..... . .. ....... .. ...... ... .. .. .. ..... .......... 4 - 1
PARTS LiST.................................................................... 5 -1 t05 -6
MECHANICAL PARTS AND DISASSEMBLY. ............................... .. 6 -1 to 6 -2
BOARD LAyOUTS............................................................. 7 -1 to7 -4
LOGIC UNIT......................................................................... .. 7-1
MAIN UNIT............................................................................ 7 - 3
OPTIONAL UNITS. ..... ...... ......... ................... ..... ....................... 8 -1
UT-85 TONE SQUELCH UNIT........................................................... 8-1
UT·101 DTMF UNIT.................................................................... 8-1
BLOCK DIAGRAM. ................................................................... 9 -1
VOLTAGE DIAGRAM ................................................................. 10-1

SECTION 8 OPTIONAL UNITS
8·1 UT·85 TONE SQUELCH UNIT
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SECTION 10 VOLTAGE DIAGRAM
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