YAESU FT-757GX II Manuals

Manuals and User Guides for YAESU FT-757GX II. We have 10 YAESU FT-757GX II manuals available for free PDF download: Supplement Manual, Operating Manual, Technical Supplement, Manual

YAESU FT-757GX II Supplement Manual (97 pages)

Brand: YAESU | Category: Transceiver | Size: 7.37 MB

Contents
2
Soldering and Desoldering Technique
4
Notes on Use of CMOS Components
4
Insertion of Parts on Circuit Boards
4
Basic Soldering Practice
5
Examples of Poor Soldering Practice
5
Soldering to Terminal Posts
5
Outer Cover Removal
6
RF and Local Unit Access
6
Service and Alignment
7
Alignment Equipment
8
Chassis Top View
8
Chassis Bottom View
8
Alignment Precautions
9
LOCAL Unit
9
Chassis Top View: LOCAL Unit Adjustment Locations
10
Adjustment (for 1.5 V)
11
Check (for 5-6 V)
11
RF Unit: Receiver Circuits
13
Chassis Bottom View: RF Unit RX Adjustmnet Locations
13
RF Unit: Transmitter Circuits
15
Chassis Bottom View: RF Unit TX Adjustment Locations
15
LPF Unit: Directional Coupler Balance
16
PA Unit: Idling Current
16
PA Unit: GX II Model
16
PA Unit: SX II Model
16
RF Unit Parts Layout: Component Side
17
RF Unit IC Voltage Chart
19
RF Unit Parts Layout: Solder Side
20
RF Unit Voltage Chart
22
RF Unit Schematic Diagram
23
Schematic Diagram
25
Local Unit Parts Layout: Component Side
26
For Service Manuals
28
Local Unit Parts Layout: Solder Side
30
Local Unit Voltage Chart
32
Local Unit IC Voltage Chart
33
Local Unit Schematic Diagram
35
Display Unit Parts Layout
37
Schematic Diagram
39
Display Unit Voltage Chart
39
Display Unit IC Voltage Chart
39
LPF Unit Parts Layout
40
Dial Unit Parts Layout
43
100W PA Unit Parts Layout
44
100W PA Unit Voltage Chart
45
100W PA Unit IC Voltage Chart
45
10W PA Unit Parts Layout
46
10W PA Unit Voltage Chart
47
10W PA Unit IC Voltage Chart
47
Keyer Unit Parts Layout
48
Keyer Control Unit
49
Notch Unit
49
Keyer Unit Voltage Chart
49
Keyer Unit IC Voltage Chart
49
Switch Unit a
50
Switch Unit B
50
Signal Paths: SSB
51
Signal Paths: CW
52
Signal Paths: am
53
Signal Paths: FM
54
Component Applications
55
Main Chassis
55
RF Unit
55
Local Unit
56
LPF Unit
58
Display Unit
59
Dial Unit
59
100W PA Unit
59
10W Pa
59
Keyer Unit
60
FT-757GX II / SX II Parts List
61
Accessories
75
FP-757HD Parts List
76
AVR Unit
76
Dial Unit F2559000
77
Keyer Unit F256000O
78
Display Unit F2720101A
86
Notch Unit F2720102A
87
LPF Unit F2516000
87
100W PA Unit F255400B
88
10W PA Unit F2555000A
90
RF Unit F2719000A
93
Local Unit F27T8000B
94

Yaesu FT-757GX II Operating Manual (73 pages)

Brand: Yaesu | Category: Transceiver | Size: 9.78 MB

Contents
2
Introduction
3
Product View
3
Errata for the FT-757GX Operating Manual
4
First Printing Only: Key Plug Requirements
4
First and Second Printings: QSK Linear Amplifier Connections
4
Schematic Diagram Correction: R269 on the RF Unit
4
Soldering and Desoldering Technique
5
Notes on Use of CMOS Components
5
Insertion of Parts on Circuit Boards
5
Basic Soldering Practice
6
Examples of Poor Soldering Practice
6
Soldering to Terminal Posts
6
Typical Part Failures, Causes and Symptoms
7
Performance Improvement Modifications
8
QSK Keying Stability
8
IOOW PA Unit
9
RF Unit
9
CW Filter Isolation
10
CAT System Serial Interface Data Manual
11
EXT CNTL Pinout
11
Data Timing Format (4800 Bits/Second)
11
Programming
12
Command Byte Codes
12
Outer Cover Removal
13
RF and Local Unit Access
13
Service and Alignment
14
FT-757SX (10 W) Underside of Heatsink
14
Alignment Equipment
15
FT-757GX Underside of Heatsink
15
Chassis Top View
15
Chassis Bottom View
15
Alignment
16
Local Unit
16
2Nd Local Oscillator Frequency
16
FM/AM Carrier Frequency
16
Chassis Top View: Local Unit Adjustment Locations
17
Main PLL (PLL-2) VCC
18
IF Shift Zero Point Set
18
VOX Gain Preset
18
SSB Carrier Point Check
18
FM Modulation
19
RF Unit: Receiver Circuits
20
Chassis Bottom View: RF Unit RX Adjustment Locations
21
RF Unit: Transmitter Circuits
22
Chassis Bottom View: RF Unit TX Adjustment Locations
22
LPF Unit: Directional CM Coupler Balance
23
PA Unit: Idling Current
23
Semiconductor Locations
24
Chassis Bottom View: RF Unit
24
Chassis Top View: Local Unit
24
Inside Front Panel
25
Signal Paths: SSB
26
Signal Paths: CW
27
Signal Paths: am
28
Signal Paths: FM
29
Component Applications
30
Main Chassis
30
LPF Unit
33
Display Unit
34
Dial Unit
34
100W PA Unit
34
10W Pa
34
Keyer Unit
35
FP-757HD Schematic Diagram
35
FP-757GX Schematic Diagram
35
Connection Diagram FT-757
36
RF Unit Parts Layout (Component Side)
37
RF Unit IC Voltage Chart
37
RF Unit Parts Layout (Solder Side)
38
RF Unit Voltage Chart
38
RF Unit Schematic Diagram
39
Local Unit Parts Layout (Component Side)
40
Local Unit Parts Layout (Solder Side)
41
Local Unit Schematic Diagram
42
LPF Unit Parts Layout
43
Component Side
43
Solder Side
43
Display Unit Parts Layout
45
Display Unit F2558000 (No. 4Xxx)
46
Display Unit Voltage Chart
46
Dial Unit Parts Layout
47
Dial Unit F2559000 (No. 5Xxx)
47
100W PA Unit Parts Layout
48
100W PA Unit Dial Unit F2554000B (No. 6Xxx)
49
100W PA Unit Voltage Chart (DC Volts)
49
PA Unit IC Voltage Chart (DC Volts)
49
10W PA Unit Parts Layout
50
10W PA Unit F2555000A (No. 7Xxx)
51
Keyer Unit Parts Layout
52
Keyer Unit Voltage Charts (DC Volts)
52
Keyer Unit F2560000C (No. 80Xx)
52
Switch Unit A, B
53
Keyer Control Unit
53
FT-757GX Parts List
55
FP-757GX Parts List
68
FP-757HD Parts List
70
Local Unit IC Voltage Chart
71
Local Unit Voltage Chart (DC Volts)
72

Yaesu FT-757GX II Operating Manual (39 pages)

hf all mode

Brand: Yaesu | Category: Transceiver | Size: 7.69 MB

General Description
2
FT-757GX Duct Flow Cooling System
3
Specifications
4
Accessories
5
Semiconductors
6
Front Panel Controls
7
Bottom
11
Rear Panel Controls and Connectors
12
Microcomputer Interface Units
13
Top Cover (Keying) Controls
14
Installation
15
Preliminary Inspection
15
Base Station Installation
15
AC Power Supply
15
Fp-757Gx
16
Fp-757Hd
16
FP-757HD Power Transformer Primary Connections
16
Ground and Location
17
Antenna
17
FC-757 at Fully Automatic Antenna Tuner
17
Mobile Installation (Negative Ground Vehicles Only)
18
DC Power Cable Connections
18
Mounting
18
Mobile Antenna
18
Interconnections View
19
Linear Amplifier Interconnection
19
FRB-757 Circuit Diagram
20
Plug Connections
21
Microphones
22
Operation
23
Initial Power up and Tuning
23
Noise and Interference Reduction
24
Receive Passband Shift and Width
24
CW Reception
25
AM Reception
25
FM Reception
26
Rtty
26
Transmitter Operation
27
Checking and Measuring SWR
27
Power Meter Calibration
28
SSB Transmission
29
VOX Adjustment and Operation
29
SSB Speech Processor
29
CW Transmission
29
Fm
30
Am
31
Multi-Frequency Operation and Memory Functions
32
Clarifier Operation
32
Split-Frequency Operation
32
VFO A/B, Memory and PMS Operation
32
Memory Storage
33
Memory Recall and Transfer
34
PMS (Programmable Memory Scan) Operation
36
FT 757GX HF Frequency Spectrum Chart
37

Yaesu FT-757GX II Operating Manual (72 pages)

Brand: Yaesu | Category: Transceiver | Size: 9.84 MB

Yaesu FT-757GX II Technical Supplement (70 pages)

Brand: Yaesu | Category: Speakers | Size: 88.87 MB

Yaesu FT-757GX II Operating Manual (40 pages)

Brand: Yaesu | Category: Transceiver | Size: 10.73 MB

YAESU FT-757GX II Manual (39 pages)

Brand: YAESU | Category: Transceiver | Size: 3.05 MB

Yaesu FT-757GX II Operating Manual (39 pages)

HF All mode Computer Aided Transceiver

Brand: Yaesu | Category: Transceiver | Size: 3.21 MB

Yaesu FT-757GX II Operating Manual (38 pages)

Computer Aided Transceiver

Brand: Yaesu | Category: Transceiver | Size: 7.69 MB

Yaesu FT-757GX II Operating Manual (37 pages)

Brand: Yaesu | Category: Transceiver | Size: 3.17 MB

YAESU Categories

Transceiver Radio Receiver Two-Way Radio Amplifier

More YAESU Manuals

YAESU FT-757GX II Manuals

YAESU FT-757GX II Supplement Manual (97 pages)

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Yaesu FT-757GX II Operating Manual (73 pages)

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Yaesu FT-757GX II Operating Manual (39 pages)

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Yaesu FT-757GX II Operating Manual (72 pages)

Yaesu FT-757GX II Technical Supplement (70 pages)

Yaesu FT-757GX II Operating Manual (40 pages)

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Yaesu FT-757GX II Operating Manual (39 pages)

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