Icom IC-756 Manuals

Manuals and User Guides for Icom IC-756. We have 5 Icom IC-756 manuals available for free PDF download: Service Manual, Instruction Manual

Icom IC-756 Service Manual (132 pages)

Brand: Icom | Category: Transceiver | Size: 48.85 MB

Repair Notes
2
Table of Contents
3
Specifications
4
Inside Views
5
Bottom View
5
Disassembly and Option Installations
7
Opening the Transceiver's Case
7
UT-102 Voice Synthesizer Unit
7
Optional if Filters
8
CR-502 High Stability Crystal Unit
8
Circuit Description
9
Receiver Circuits
9
RF Switching Circuit
9
Pre-Amplifier Circuits
9
1St if Circuit
10
2Nd Mixer Circuit
10
Noise Blanker Circuit
10
2Nd if Circuit
10
Twin PBT Circuit
11
AGC Circuit
11
S-Meter Circuit
11
Squelch Circuit
11
Transmitter Circuits
12
AF Selector Switch
12
AF Amplifier Circuit
12
Microphone Amplifier Circuit
12
Speech Compressor Circuit
13
If Amplifier and Mixer Circuits
13
RF Circuit
13
Low-Pass Filter Circuit
13
PLL Circuits
14
APC Circuit
14
Temperature Protection Circuit
14
Monitor Circuit
14
2Nd lo and Reference Oscillator Circuits
15
3Rd and 4Th lo Circuits
15
Marker Circuit
15
PLL Circuit
15
Antenna Tuner Circuits
16
Matching Circuit
16
Detector Circuit
16
Motor Control Circuit
16
Scope Circuits
17
Power Supply Circuits
17
Scope Receiver Circuit
17
PA Unit
17
Logic Circuits
18
Main Unit
18
CTRL and PLL Units
18
Main CPU Port Allocations
18
SUB-CPU Port Allocations
19
I/O Expander Port Allocations
20
Input Expander Port Allocations
20
Output Expander Port Allocations
21
Adjustment Procedures
23
Preparation before Servicing
23
Required Test Equipment
23
Connection
23
PLL Adjustment
24
PLL Unit
25
Receiver Adjustment
26
Transmitter Adjustment
30
Parts List
34
Mechanical Parts
62
Semi-Conductor Information
68
Diodes
69
Board Layouts
70
PBT Board
70
RIT Board
70
SUB-LOGIC UNIT (Top View)
71
Mode and Tenkey Boards
75
Mode Board
75
Block Diagram
101
Voltage Diagram
105

Icom IC-756 Instruction Manual (72 pages)

HF/50 MHz ALL MODE TRANSCEIVER

Brand: Icom | Category: Transceiver | Size: 1.34 MB

Table of Contents

3
- Important
  
  2
- Precautions
  
  2
- Explicit Definitions
  
  2
  - Table of Contents
    3
- Unpacking
  
  3
- 1 Panel Description
  
  4
  - Front Panel
    4
  - Microphone (HM-36)
    11
  - LCD Display
    12
  - Screen Menu Arrangement
    13
  - Rear Panel
    14
- 2 Installation and Connections
  
  16
  - Unpacking
    16
  - Selecting a Location
    16
  - Grounding
    16
  - Antenna
    16
  - Required Connections
    17
  - Advanced Connections
    18
  - Power Supply Connections
    19
  - Linear Ampliﬁer Connections
    20
  - External Antenna Selector or Antenna Tuner Connections
    21
  - FSK and AFSK (SSTV) Connections
    22
Remote Jack (CI-V) Information

23
- 3 Frequency Setting
  
  24
  - When First Applying Power (CPU Resetting)
    24
  - Initial Settings
    24
  - VFO Description
    25
  - Frequency Setting with the Tuning Dial
    26
  - Direct Frequency Entry with the Keypad
    26
  - Usb
    26
  - Advanced Tuning Functions
    27
- Receive and Transmit
  
  28
  - Mode Selection
    28
  - Twin PBT Operation
    28
  - Rtty
    28
  - Auto Notch Function
    29
  - Noise Reduction
    29
  - Noise Blanker
    29
  - APF Function
    30
  - CW Reverse Mode
    30
  - RTTY Reverse Mode
    30
  - CW Pitch Control
    30
  - Filter Selection
    31
  - RIT and ∂TX
    32
  - Dualwatch Operation
    33
  - Split Frequency Operation
    34
  - Quick Split Function
    35
  - Monitor Function
    36
  - VOX Function
    36
  - Meter Function
    37
  - Speech Compressor
    37
  - SWR Reading
    37
  - Electronic CW Keyer
    38
  - Memory Keyer
    39
  - Spectrum Scope Screen
    40
    
    (For Automatic Antenna Selection)
    40
  - Repeater Operation
    41
  - Dial Lock Function
    41
  - Antenna Tuner Operation
    42
    
    Optional External Tuner Operation
    43
- 5 Memory Operation
  
  44
  - Memory Channels
    44
  - Memory Channel Selection
    44
  - Memory Channel Screen
    45
  - Memory Channel Programming
    46
  - Frequency Transferring
    47
  - Memory Names
    48
  - Memory Clearing
    48
  - Memo Pads
    49
- 6 Scans
  
  50
  - Scan Types
    50
  - Preparation
    50
  - Mch No. (BCD)
    50
  - Scan Stop
    50
  - Start Programmed/Memory Scan
    50
  - Programmed Scan Operation
    51
  - F Scan Operation
    51
  - Fine Programmed Scan/ Fine ∂F Scan
    52
  - Memory Scan Operation
    52
  - Select Memory Scan Operation
    53
  - Setting Select Memory Channels
    53
  - Start Select Memory Scan
    53
- 7 Clock and Timers
  
  54
  - Setting the Current Time
    54
  - Setting Power-On Time
    54
  - Setting Power-Off Period
    55
  - Timer Operation
    55
  - [TS] off (10 or 1 Hz Step)
    55
  - [TS] on (1 Khz Step)
    55
- 8 Set Mode
  
  56
  - Set Mode Description
    56
  - Level Set Mode
    57
  - Display Set Mode
    57
  - Timer Set Mode
    58
  - Miscellaneous (Others) Set Mode
    58
- 9 Option Installations
  
  64
  - Opening the Transceiver's Case
    64
  - Voice Synthesizer Unit
    64
  - Optional if Filters
    65
  - High Stability
    65
- 10 Maintenance
  
  66
  - Troubleshooting
    66
  - Fuse Replacement
    67
  - Clock Backup Battery Replacement
    67
  - Tuning Dial Brake Adjustment
    68
  - Frequency Calibration (Approximate)
    68
  - [TS] on (5 Khz Step)
    68
- 11 Internal Views
  
  69
- 12 Specifications
  
  70
- 13 Options
  
  71

Icom IC-756 Service Manual (132 pages)

Brand: Icom | Category: Transceiver | Size: 48.79 MB

Icom IC-756 Service Manual (132 pages)

HF/50MHz all band

Brand: Icom | Category: Transceiver | Size: 48.78 MB

Icom IC-756 Instruction Manual (72 pages)

HF/50 MHz All Mode Transceiver

Brand: Icom | Category: Transceiver | Size: 6.26 MB

Icom Categories

Transceiver Receiver Repeater Two-Way Radio Radio

More Icom Manuals

Icom IC-756 Manuals

Icom IC-756 Service Manual (132 pages)

Table of Contents

Icom IC-756 Instruction Manual (72 pages)

Table of Contents

Table of Contents

Important

Precautions

Explicit Definitions

Unpacking

1 Panel Description

2 Installation and Connections

Remote Jack (CI-V) Information

3 Frequency Setting

Receive and Transmit

5 Memory Operation

6 Scans

7 Clock and Timers

8 Set Mode

9 Option Installations

10 Maintenance

11 Internal Views

12 Specifications

13 Options

Icom IC-756 Service Manual (132 pages)

Icom IC-756 Service Manual (132 pages)

Icom IC-756 Instruction Manual (72 pages)

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