Icom IC-735 Manuals

Manuals and User Guides for Icom IC-735. We have 7 Icom IC-735 manuals available for free PDF download: Service Manual, Instruction Manual

Icom IC-735 Service Manual (150 pages)

HF All band transceiver general coverage receiver

Brand: Icom | Category: Transceiver | Size: 26.07 MB

Table of Contents
3
Specifications
5
Installation and Connections
6
Antenna
6
Microphone
6
CW Key
6
Power Supply
7
For AC Operation with the PS-55
7
For AC Operation with Other Manufacturers AC Power Supply
7
Ground
7
System Interconnections
8
Linear Amplifier
8
Using the IC-2KL Linear Amplifier
8
Antenna Tuner
8
Using the AT-150
9
Using the IC-AT100/500
9
RTTY Terminal Unit
9
Using MIC/Phone Jacks
9
Using ACC (1) Connector
10
RTTY Operation
10
Frequency Readout
10
Receive Antenna
10
Rear Panel Connections
11
Accessory Socket Connections
12
Acc (1, 2)
12
Band Control Voltage Chart
12
Option Installations
13
IC-EX243 Electronic Keyer Unit
13
Installing Optional Electronic Keyer Unit
13
Fl-32, FL-63 CW Narrow Filters
13
UT-30 Tone Encoder Unit
14
Subaudible Tone Encoder Programming Chart
14
Assembly Procedure
14
Circuit Description
15
Main Unit
15
Attenuator (ATT), Reception Band-Pass Filter (BPF), and Band-Signal DC Amplifier
15
NB Circuit
15
9 Mhz Band if Amplifier and Notch Filter
16
455 Khz if Amplifier
16
Configuration of the PBT
16
PBT Operation of this Unit
16
SSB and CW Detection Circuit
17
FM, am Detection Circuit
17
AGC Circuit
17
All-Mode Squelch Circuit
17
AF Amplifier
18
CW Key Circuit Side Tone
18
Vox Break-In Circuit
18
RF and SWR Circuit
18
Power Supply Circuit
19
Timing Diagram of CW Operation
19
PLL Unit
20
PLL Section
20
Frequencies of the PLL Section am Mode
20
PLL Block Diagram
20
Reference Oscillation Circuit
21
Main Loop
21
Ics for the PLL
21
Vco
21
LO in the Loop
22
PLL Reference Frequency and Marker Circuit
22
Sub Loop (LPL)
22
2Nd lo Output
23
Determining the N-Data
23
MIC Amplifier Circuit
23
Logic Section
23
CPU Port Allocations
24
Reset Circuit
25
CPU Reset Circuit
25
Sensor and MIC Up/Down Circuit
26
Sensor Circuit
27
MIC Up/Down Circuit
27
4 Times Speed
27
Truth Tables
27
PLL and Display Data
28
Frequency Ranges
28
BPF, LPF, VCO, and LDA Classifications
29
Shift in PLL Data According to Mode
29
Displayed Frequency: Constant
29
LCD Display
29
Front Unit
30
Rit Circuit
30
Send Circuit
30
Dimmer Circuit
31
PA Unit
31
Protection Circuit
31
Filter Unit
31
Die-Cast Heat Sink
32
Theory of Matrix Function
33
Front Panel Operation (Matrix Input)
34
Xmit
34
Description of Additional Matrix Input
37
Voltage/Circuit Diagrams
38
Front Unit and Wiring Diagram
38
Main Unit Diagram
40
PL Unit
42
PA Unit (Power Amplifier)
44
PA Unit (Filter)
45
Front Unit Dimmer Circuit
46
Sensor Unit
46
Maintenance and Adjustment
47
Preparation before Servicing
47
General Adjustment
48
PLL Adjustment
50
Transmitter Adjustment
54
Rear Panel
59
Receiver Adjustment
61
Adjustment Locations
63
Main Unit Side
63
Bottom View
63
Side View
64
PL Unit Side
64
Top View
64
Lithium Battery Replacement
65
Fuse Replacement
65
How to Remove PA Cover
65
Troubleshooting
66
Inside Views
68
PA Unit (Power Amplifier and Filter)
70
Disassembly and Assembly Diagrams
72
Front Panel Disassembly
72
Top Cover, Bottom Cover, PA Disassembly
74
Front Sub-Chassis Connector Assembly
75
Main Unit Connector Assembly
76
PL Unit Connector Assembly
77
PA Unit Connector Assembly
78
Board Layouts
79
Block Diagram
87
IC Ratings
88
Pd4066Bc
89
Maximum Ratings
89
Pin Connection
89
PD7225G (LCD Controller/Driver)
89
Nd487C1-3R
90
Ba618
90
PC577H (FM-IF Amplifier)
91
PC1037 (Double Balanced Modulator)
91
NJM4558D (Dual Low Noise Amp)
92
Njm072082D
92
HD10551 (Pre-Scaler for Digital Tuning System)
93
PC1181H (Audio Power Amplifier)
93
M5218L (Dual Audio Amplifier)
94
A78M08
94
BA222 (Monolithic Timer)
95
Pd4001Bc
95
Logic Diagram
95
Pd4069Ubc
96
Equivalent Circuit Diagram
96
Hd63A01V1
96
Pd4510Bc
97
Pd4021Bc
97
Pd82C43C
98
DAN401 (High-Speed Switching Diode Array)
98
PD2834C (PLL Frequency Synthesizer)
99
Pb555C
99
SN76514 (Circuit Type Balanced Mixer)
100
A78M05C
100
PC1037H (Double Balanced Modulator)
101
SN4LS90N (Decode Counter)
101
Optional Units
102
Other Options Available
102
Parts List
103
ICOM CI-V Communication Interface System
126
Features
126
Theory of Operation
126
CPU I/O Port and Input Matrix
126
Terminal Descriptions
127
Serial Data
127
Typical Command Message
128
Csma/CD
128
Control Code
128
Collision Detection
131
Operation with the IC-735
131
Control Code Operation
131
IC-735 Baud Rates
132
Control Code [00] (Set Frequency-Transceive)
132
Control Code [01] (Set Mode-Transceive)
133
Control Code [02] (Tuning Range Request)
134
Control Code [03] (Frequency Request)
134
Control Code [04] (Mode Request)
135
Control Code [05] (Set Frequency)
135
Control Code [06] (Set Mode)
137
Control Code [07]
138
Control Code [08] (Set Memory Channel)
139
Control Code [09] (Memory Write)
140
Control Code [0A]
141
IC-735 Schematic Diagram
142

Icom IC-735 Service Manual (149 pages)

HF All Band Transceiver general coverage receiver

Brand: Icom | Category: Transceiver | Size: 25.96 MB

Icom IC-735 Instruction Manual (51 pages)

HF ALL BAND TRANSCEIVER GENERAL COVERAGE RECEIVER

Brand: Icom | Category: Transceiver | Size: 6.69 MB

Table of Contents
3
Specifications
5
Description
7
Section 3 Control Functions
9
- Front Panel
  10
- Frequency Display
  14
- Switch Panel
  15
- Rear Panel
  16
Installation and Connections
19
- Unpacking
  19
- Installation Recommendations
  19
- Antenna
  19
- Microphone
  20
- Cw Key
  20
- Power Supply
  21
- Ground
  22
- Lithium Battery Replacement
  22
- Fuse Replacement
  22
- Rear Panel Connections
  23
- System Interconnections
  24
- Linear Amplifier
  24
- Antenna Tuner
  25
- Rtty Operation
  25
- Connections
  26
- Frequency Readout
  26
- Installing Optional Electronic Keyer
  27
- Installing Optional Cw Narrow Filter
  27
- Accessory Connectors
  28
- Operating Instructions
  29
- Settings
  29
- Basic Operation
  30
- Frequency Selection
  30
- Mode Selection
  31
- Vfo A/B Selection
  31
- Vfo Mode/Memo Mode Selection
  32
- Receiving
  32
- Transmitting
  33
- Operation
  33
- Ssb Operation
  33
- Cw Operation
  35
  - Am Operation
    36
  - Fm Operation
    37
- Split (Duplex) Operation
  38
- Memory Channel Operation
  38
- Scan Operation
  39
- Microphone Up/Down Function
  41
- Filters
  42
- Passband Tuning (P.b.t.)
  42
- Notch Filter
  42
- Filter Switches
  42
- Frequency Calibration
  43
- Swr Checking
  43
- Block Diagram
  44
Inside Views
45
- Main Unit Side
  45
- Pl Unit Side
  46
- Adjustment Locations
  47
- Main Unit Side
  47
- Pl Unit Side
  48
- Disassembly Diagrams
  49
Optional Units
50

Icom IC-735 Instruction Manual (51 pages)

HF all band Transceiver general coverage receiver

Brand: Icom | Category: Transceiver | Size: 1.75 MB

Icom IC-735 Instruction Manual (51 pages)

HF all band transceiver general coverage receiver

Brand: Icom | Category: Transceiver | Size: 5.18 MB

Icom IC-735 Instruction Manual (51 pages)

HF all band transceiver

Brand: Icom | Category: Transceiver | Size: 8.62 MB

Icom IC-735 Instruction Manual (31 pages)

HF ALL BAND TRANSCEIVER GENERAL COVERAGE RECEIVER

Brand: Icom | Category: Transceiver | Size: 2.14 MB

Icom Categories

Transceiver Receiver Repeater Radio Two-Way Radio

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