ICOM IC-756PROII Manuals

ICOM IC-756PROII Manuals

Manuals and User Guides for ICOM IC-756PROII. We have 3 ICOM IC-756PROII manuals available for free PDF download: Service Manual, Instruction Manual

Icom IC-756PROII Service Manual

Icom IC-756PROII Service Manual (119 pages)

HF/50MHz ALL BAND TRANSCEIVER

Brand: Icom | Category: Transceiver | Size: 20 MB

Table of Contents

Danger
2
Introduction
2
Ordering Parts
2
Repair Notes
2
Table of Contents
3
Specifications

4
- Antenna Tuner
  4
Inside Views

5
- Top View
  5
- Bottom View
  6
Circuit Description

7
- Receiver Circuit
  7
- Rf Switching Circuit
  7
- Pre-Amplifier Circuits
  7
- 1St if Circuit
  8
- 2Nd Mixer Circuit
  8
- 2Nd if Circuit
  8
- 3Rd Mixer and 3Rd if Circuits
  8
- S-Meter Circuit (Main-A Unit)
  9
- Squelch Circuit (Main-A Unit)
  9
- Twin Pbt Circuit (Dsp-A Board)
  9
- Agc Circuit (Dsp-A Board)
  9
- Transmitter Circuits
  10
- Microphone Amplifier Circuit
  10
- Vox Circuit
  10
- When FM/AM Modes
  10
- Speech Compressor Circuit
  11
- If Amplifier and Mixer Circuits
  11
- Rf Circuit (Rf-B and Pa Units)
  11
- Low-Pass Filter Circuit (Filter-A Unit)
  11
- Monitor Circuit
  12
- Pll Circuits
  12
- Apc Circuit (Main-A Unit)
  12
- When SSB/RTTY Modes (DSP-A BOARD)
  12
- 2Nd lo and Reference Oscillator Circuits
  13
- 3Rd lo Circuit
  13
- Marker Circuit
  13
- Reference Loop Pll
  13
- Antenna Tuner Circuits
  14
- Matching Circuit (Tuner-A Unit)
  14
- Detector Circuit (Ctrl-A Unit)
  14
- Antenna Tuner Cpu Port Allocation
  14
- Scope Circuits
  15
- Scope Receiver Circuit (Rf-B Unit)
  15
- Power Supply Circuits
  15
- Sweep lo Circuit (Pll Unit)
  15
- Sub-Cpu Port Allocations
  16
- Main-A Unit
  16
- Ctrl-A and Pll Units
  16
- Logic Circuits
  16
- Main-Cpu Port Allocations
  17
- Input Expander Allocations
  18
Adjustment Procedures

21
- Preparation
  21
- Required Test Equipment
  21
- Connections
  21
- Pll Adjustments
  22
- PLL Unit
  23
- Bottom View of the Transceiver
  23
- Transmitter Adjustments
  24
- PA Unit
  25
- RF-B Unit
  25
- DSP-A Board
  27
- Receiver Adjustments
  28
- Rx Peak
  28
- Mixer Balance
  28
- Tuner Adjustments
  32
- CTRL-A Unit
  32
- Meter Adjustments
  33
Parts List

35
- Display Unit
  36
- Pll Unit
  39
- Key Unit
  39
- MIC Unit
  39
Section 8 Board Layouts

66
Section 7 Semi-Conductor Information

66
Mechanical Parts and Disassembly

66
- Display Board
  66
  - MIC Board
    66
  - Phone Board
    66
  - Rit Board
    66
  - Semi-Conductor Information
    70
  - Transistors and Fet’s
    70
  - Diodes
    71
  - Board Layouts
    72
  - Display Board
    72
  - Display Board (Bottom View)
    73
- Key Board
  74
- Mode Board
  74
- Phone Board
  74
- Ten-Key Board
  74
- Memory Board
  76
- MIC Board
  76
- Pbt Board
  76
- Rit Board
  76
  - Memory Board (Bottom View)
    77
  - MIC Board (Bottom View)
    77
  - Pbt Board (Bottom View)
    77
  - Rit Board (Bottom View)
    77
- Main-A Unit
  78
- Dsp-A Board
  80
- Dsp-A Board (Bottom View)
  81
- Rf-B Unit
  82
- Bpf-A Board
  84
- Preamp Board
  84
  - Bpf-A Board (Bottom View)
    85
  - Preamp Board (Bottom View)
    85
- Pll Unit
  86
- Pll Unit (Bottom View)
  87
- Pa Unit
  88
- Filter-A Unit
  90
- Block Diagram
  96
- Ctrl-A Unit
  97
Section 9 Block Diagram

98
Voltage Diagrams

98
- Front Unit
  98
- Dsp-A Board
  100
- Tuner-A, Memory Boards and Ctrl-A Unit
  102
- Main-A Unit
  104
- Pll Unit
  109
- Pa and Filter-A Units
  112
  - Main Dial
    113
  - Mode Board
    113
- Bpf-A, Preamp Boards and Rf-B Unit
  114

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Icom IC-756PROII Instruction Manual

Icom IC-756PROII Instruction Manual (88 pages)

HF/50 MHz ALL MODE TRANSCEIVER

Brand: Icom | Category: Transceiver | Size: 1 MB

Table of Contents

Explicit Definitions

2
Precautions

2
1 Table of Contents

3
2 Panel Description

4
- Front Panel
  4
- Microphone (HM-36)
  11
- LCD Display
  12
- Screen Menu Arrangement
  14
- Panel Description
  15
3 Installation and Connections

16
- Unpacking
  16
- Selecting a Location
  16
- Grounding
  16
  - Antenna Connection
    16
- Required Connections
  17
  - Advanced Connections
    18
- Power Supply Connections
  19
- Linear Ampliﬁer Connections
  20
- External Antenna Tuner Connections
  21
- Transverter Jack Information
  21
- FSK and AFSK (SSTV) Connections
  22
4 Frequency Setting

23
5 Receive and Transmit

27
- Mode Selection
  27
- Twin PBT Operation
  27
- Notch Function
  28
- Noise Reduction
  28
- Noise Blanker
  29
- DSP Filter Shape
  29
- RTTY Filter/Twin Peak Filter
  30
- CW Reverse Mode
  30
- RTTY Reverse Mode
  30
- CW Pitch Control
  31
- IF Filter Selection
  31
  - AGC Function
    32
- Dualwatch Operation
  33
- Split Frequency Operation
  34
- Quick Split Function
  35
- RIT and ∂TX
  36
- Monitor Function
  37
- VOX Function
  37
- Meter Function
  38
- SWR Reading
  38
- Speech Compressor
  39
- Preamp
  39
- Digital Voice Recorder
  40
- Recording a Message for Transmit
  42
- RTTY Decoder
  44
- RTTY Tuning Meter
  44
- Electronic CW Keyer
  45
- Ant Bw Sftt
  45
- Memory Keyer
  46
- Spectrum Scope Screen
  47
  - Att off
    47
  - BW 2.4K SFTT
    47
  - METER Po
    47
  - Qw:pp
    47
  - Usb
    47
  - Vfo Usb Fil2
    47
  - Automatic Antenna Selection
    48
- Dial Lock Function
  48
- Repeater Operation
  49
- Tone Squelch Operation
  50
  - Antenna Tuner Operation
    51
- Optional External Tuner Operation
  52
- Receive and Transmit
  52
6 Memory Operation

53
- Memory Channels
  53
- Memory Channel Selection
  53
- Memory Channel Screen
  54
- Memory Channel Programming
  55
- Frequency Transferring
  56
- Memory Names
  57
- Memory Clearing
  57
- Memo Pads
  58
- Memory Operation
  58
7 Scans

59
- Scan Types
  59
- Preparation
  59
- Programmed Scan Operation
  60
- F Scan Operation
  60
- Fine Programmed Scan/Fine ∂F Scan
  61
- Memory Scan Operation
  61
- Select Memory Scan Operation
  62
- Setting Select Memory Channels
  62
- Scan Set Mode
  63
- Tone Scan
  64
8 Clock and Timers

65
- Setting the Current Time
  65
- Timer Function Activity
  65
- Setting Power-On Time
  66
- Setting Power-Off Period
  66
- Timer Operation
  66
- Clock and Timers
  66
9 Set Mode

67
- Set Mode Description
  67
- Level Set Mode
  68
- Display Set Mode
  69
- DSP Filter Set Mode
  70
- Timer Set Mode
  71
- Miscellaneous (Others) Set Mode
  72
- Set Mode
  77
10 Option Installation

78
- Opening the Transceiver's Case
  78
- Voice Synthesizer Unit
  78
11 Maintenance

79
- Troubleshooting
  79
- Fuse Replacement
  80
- Clock Backup Battery Replacement
  80
- Tuning Dial Brake Adjustment
  81
- Frequency Calibration (Approximate)
  81
- Maintenance
  81
12 Internal Views

82
13 Control Command

83
- Remote Jack (CI-V) Information
  83
- Control Command
  84
14 Specifications

85
15 Options

86
16 About Ce

87

Icom IC-756PROII Service Manual

Icom IC-756PROII Service Manual (105 pages)

HF/50MHz ALL MODE TRANSCEIVER

Brand: Icom | Category: Transceiver | Size: 17 MB

Table of Contents

Table of Contents
3
Specifications

4
Inside Views

5
Circuit Description

7
- Receiver Circuits
  7
- Transmitter Circuits
  10
- Pll Circuits
  12
- Antenna Tuner Circuits
  14
- Scope Circuit
  15
- Power Supply Circuits
  15
- Logic Circuits
  16
- Adjustment Procedures
  
  21
  - Preparation before Servicing
    21
  - Pll Adjustment
    22
  - Transmitter Adjustment
    25
  - Receiver Adjustment
    28
  - Tuner Adjustment
    32
  - Meter Adjustment
    33
- Parts List
  
  35
  - Phone Board
    38
  - Mode Board
    38
  - MIC Board
    38
  - Key Board
    39
  - Pll Unit
    39
  - Memory Board
    51
- Mechanical Parts
  
  68
- Semi-Conductor Information
  
  72
- Board Layouts
  
  74
  - Pbt, Rit and MIC Boards
    74
  - Display Board
    75
  - Mode, Phone, Key and Ten-Key Boards
    77
  - Rf-A Unit
    79
  - Pll Unit
    81
  - Main-A Unit
    83
  - Dsp-A, Memory and Bpf Boards
    85
  - Pa Unit
    87
  - Filter Unit
    89
  - Tuner Board
    91
  - Ctrl Unit
    93
Section 10 Voltage Diagrams

96
Section 9 Block Diagram

96
- Front Unit
  96
- Dsp-A Board
  97
- Tuner, Memory Boards and Ctrl Unit
  98
- Main-A Unit (1)
  99
- Main-A Unit (2)
  100
- Pll Unit
  101
- Pa and Filter Units
  102
- Rf-A Unit and Bpf Board
  103

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