Equipment information
Icom IC-T81A Transceiver
Manufacturer:
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Model:
IC-T81A
Date:
Category:
Group:
Description:
Multiband FM Transceiver
Manual Type:
Service Manual
Pages:
53
Size:
2.34 Mbytes (2457402 Bytes)
Language:
english
Revision:
Manual-ID:
Date:
Quality:
Scanned document, all readable.
Upload date:
2017 05 14
MD5:
adbc6a49c3ece89bf56c9d243d37ef89
Downloads:
1130
Information
SECTION 1 SPECIFICATIONS
SECTION 2 INSIDE VIEWS
SECTION 3 DISASSEMBLY INSTRUCTIONS
SECTION 4 CIRCUIT DESCRIPTION
4-1 Receiver
CIRCUITS ... 4-1
4-2 Transmitter CIRCUITS
... 4-3
4-3 PLL
CIRCUITS ... 4-5
4-4 Power Supply
CIRCUITS ... 4-5
4-5 PORT ALLOCATIONS
... 4-6
SECTION 5 ADJUSTMENT PROCEDURES
5-1 PREPARATION
... 5-1
5-2 PLL ADJUSTMENT
... 5-2
5-3 Receiver
ADJUSTMENT ... 5-4
5-4 Transmitter ADJUSTMENT
... 5-8
SECTION 6 PARTS LIST
SECTION 7 MECHANICAL PARTS AND DISASSEMBLY
SECTION 8 SEMI-CONDUCTOR INFORMATION
SECTION 9 BOARD LAYOUTS
9-1 LOGIC UNIT
... 9-1
9-2 RF UNIT
... 9-3
9-3 VCO
BOARD ... 9-5
SECTION 10 BLOCK DIAGRAM
SECTION 11 VOLTAGE DIAGRAM
11-1 LOGIC UNIT
... 11-1
11-2 RF UNIT
... 11-2