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Icom IC-4GA Transceiver
Manufacturer:
Model:
IC-4GA
Date:
1988
Class:
Type:
SubType:
UHF FM TRANSCEIVER
Service Manual
Manual type:
Service Manual
Pages:
58
Size:
14.30 Mbytes (14993116 Bytes)
Language:
english
Revision:
Manual-ID:
A-5002-S
Date:
unknown
Quality:
Scanned document, all readable.
Upload date:
2016 01 06
MD5:
ca649b8e99f1afecfd6937e4d624e9ba
Downloads:
1964

Information

This service manual contains information relative to the theoretical, physical, mechanical and electrical characteristics of the IC-4GA.GAT/ GE UHF FM Transceiver SECTION 1 SPECIFICATIONS ... 1-1 SECTION 2 OUTSIDE AND INSIDE VIEWS ... 2-1-4 2-1 FRONT AND SIDE PANELS ... 2-1 2-2 TOP PANEL ... 2-2 2-3 FUNCTION DISPLAY ... 2-2 2-4 MAIN UNIT ... 2-3 2-5 RF UNIT ... 2-4 2-6 SPEAKER AND DTMF UNITS ... 2-4 SECTION 3 BLOCK DIAGRAM ... 3-1 SECTION 4 CIRCUIT DESCRIPTION ... 4-1-7 4-1 Receiver CIRCUITS ... 4-1 4-2 Transmitter CIRCUITS ... 4-2 4-3 PLL CIRCUITS ... 4-3 4-4 Power Supply CIRCUITS ... 4-4 4-5 OTHER CIRCUITS ... 4-4 4-6 CPU (IC501) PORTALLOCATION ... 4-6 4-7 MATRICES ... 4-7 SECTION 5 MECHANICAL PARTS AND DISASSEMBLY ... 5-1-2 SECTION 6 ADJUSTMENT PROCEDURES ... 6-1-4 6-1 PLL ADJUSTMENT ... 6-1 6-2 Receiver ADJUSTMENT ... 6-2 6-3 Transmitter ADJUSTMENT ... 6-3 SECTION 7 BOARD LAYOUTS ... 7-1-9 7-1 INTERCONNECTION ... 7-1 7-2 LOGIC-A UNIT ... 7-2 7-3 LOGIC-B UNIT ... 7-3 7-4 RF UNIT ... 7-4 7-5 MAIN UNIT ... 7-6 7-6 OTHER UNITS ... 7-8 SECTION 8 VOLTAGE DIAGRAM ... 8-1-3 8-1 LOGIC UNIT ... 8-1 8-2 RF UNIT ... 8-2 8-3 MAIN UNIT ... 8-3 SECTION 9 PARTS LIST ... 9-1-5

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