Yaesu FT-415 Manuals

Yaesu FT-415 Manuals

Manuals and User Guides for Yaesu FT-415. We have 1 Yaesu FT-415 manual available for free PDF download: Technical Supplement

Yaesu FT-415 Technical Supplement

Yaesu FT-415 Technical Supplement (49 pages)

Brand: Yaesu | Category: Transceiver | Size: 7.13 MB

Table of Contents

Case Disassembly & PCB Access
2
Packaging
3
Exploded View
4
Chip Component Information
5
Capacitor
5
Tantalum Capacitor
5
Resistors
5
Diodes
6
Circuit Description
7
Receiver Signal Path
7
Squelch Control
7
Miscellaneous Circuits
8
Battery Charger & Power Control
8
Transmit/Receive Switching
8
Power Saving
8
Alignment
9
Circuit Board Locations
9
PLL & Transmitter Alignment
10
Receiver Alignment Points
10
VOX Circuit Check
10
S-Meter Calibration
10
Block Diagram
11
Mother Unit Parts List
12
Mother Unit Board Layout
14
Mother Unit Schematic Diagram
15
Control Unit Parts List
16
Control Unit Board Layout
18
Control Unit Schematic Diagram
19
IF Unit Parts List
20
IF Unit Board Layout
22
IF Unit Schematic Diagram
23
APC Unit Parts List
24
APC Unit Board Layout & Schematic Diagram
25
VR Unit Parts List
26
VR Unit Board Layout & Schematic Diagram
26
PLL Unit Parts List
27
PLL Unit Board Layout & Schematic Diagram
28
Clock Unit Parts List
29
Clock Unit Board Layout & Schematic Diagram
29
Pager Unit Parts List
30
Pager Unit Board Layout & Schematic Diagram
30
Tone Squelch Unit Installation
31
CTCSS Tone Frequencies
31
Board Layout & Schematic Diagram
32
Contents
33
Required Test Equipment
36
PLL & Transmitter
36
PLL & Transmitter Alignment Setup
36
Alignment Preparation & Precautions
36
Transmit Signal Path
38
Spurious Suppression
38
PLL Frequency Synthesizer
38
Automatic Transmit Power Control
38
Transistors
40
Parts List
47

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