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Furuno Manuals
Cordless Telephone
FS-1503
Service manual
Table Of Contents - Furuno FS-1503 Service Manual
Ssb radiotelephone
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Also See for FS-1503
:
Operator's manual
(55 pages)
,
Installation manual
(50 pages)
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Table Of Contents
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Contents
Table of Contents
Troubleshooting
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Table of Contents
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Table of Contents
Table Of Contents
3
System Diagram
4
Chapter 1 Configuration
4
Fs-1503 Standard Supply
5
Fs-1503 Optional Supply
6
General
8
Chapter 2 Circuit Description
8
Interconnections
9
Function Of Pcb
10
Spectrum
11
Cpu
13
Block Diagram Of Cpu
13
Cpu Input/Output Control Signals
14
Cpu Function List
14
Control Signals
16
Serial Data Lines
16
Transmission Timing
17
Block Diagram Of M54972P
17
Tx/Rx Serial Data List
18
Pa/Fil Serial Data List
19
Oscillator
20
Frequency Conversion
20
Frequency Of Local Oscillator
20
Block Diagram Of Synthesizer Circuit
21
3Rd Local Frequency (3Lo)
22
2Nd Local Frequency (2Lo)
22
1St Local Frequency (1Lo)
22
Oscillation Frequency On Each Band
23
1Lo Pll Vco
23
Tx/Rx Circuit
24
Tx/Rx Section (J3E)
24
Af Amplifier Thru 455 Khz Circuit
24
455 Khz Circuit Thru Exciter
25
Pa/Fil Section
25
Block Diagram Of Pa
26
Block Diagram Of Fil (Tx)
26
Alc Signal
27
Receiver Circuit
28
Tx/Rx Section: Fo To Nb (J3E)
28
Block Diagram Of Fil (Rx)
28
Receiver Rf Circuit
29
Nb Circuit
29
Tx/Rx Section: Nb To Af
29
455 Khz Circuit
30
Tx/Rx Section: Agc, Af
30
Agc And Demodulator Circuits
31
Tx/Rx Section Af
31
Rx Af Circuit
32
Power Supply Sw Circuit
33
Sw Reg Board (Option)
34
Connection Of Sw Reg Board
34
Block Diagram Of Sw Reg Circuit
34
Ant Coup (Antenna Coupler)
35
Capacitance And Reactance In Matching Circuit (Matching Data)
35
Block Diagram Of At-1503
35
Matching Process (Tune/Busy Signals)
36
Tone Operation Timing Chart
36
Matching Circuit
37
Change Of Antenna Impedance
37
Matching Flow Chart
38
Matching Operation
39
Through Signal
40
System Setting: 9921
40
"Through" Operation
40
Interface
41
Remote Terminal Connection
41
Operation With Mif Command
42
Operation On Dp-6
42
Mif Command List
43
Control
44
Main Unit
45
Fs-1503 Front Panel
45
Fs-1503 Rear Panel
45
Chapter 3 Location Of Parts
45
Tx/Rx Board
46
Pa/Fil Board (05P0667)/Sw Reg Board (05P0668)
47
Cpu Board (05P0665)
48
At-1503
49
Power Supply Unit
50
Left-Hand Side View
50
Pr-270
51
Chapter 4 System Settings
52
Changing System Settings
53
System Channels List
54
Description Of System Channel
55
Channel Programming
59
How To Program User Channel
59
How To Register Channel Name
60
How To Erase Programmed Frequency
61
How To Erase Channel Name
61
How To Change Channel Name
61
Symbols For Channel Name
62
Power Data Setting
63
Hi (Normal) Power
63
Low (Reduced) Power
63
Tune Power (Factory-Adjusted)
63
Frequency Ranges For Power Adjustment
64
Default Setting Of Power Data
64
How To Adjust Hi Power
65
How To Adjust Low Power
66
How To Adjust Tune Power
67
Bc Band Filter Setting
68
Setting For Nbdp (Dp-6)
69
Setting On Dp-6
69
Setting On Fs-1503
69
Periodical Checks
70
Cleaning Of The Display
70
Connections
70
Chapter 5 Maintenance
70
Self-Test
71
Transceiver Check
71
Self-Test Algorithm
72
Self-Test Flow
72
(Pa And Antenna Coupler)
73
Lcd/Keyboard Check
74
Antenna Coupler Check
74
Troubleshooting
75
Rf Meter Reading Vs Output Power
76
Measurement
77
Frequency Adjustment
77
J3E Receiver Gain
78
J3E Agc Adjustment
78
Ssg Output Level Vs. S-Meter Reading
78
Measurement On Rx Circuit
78
J3E Rx Total Gain
79
Measurement Of Tx Output Power
79
How To Change Pa Transistor
80
Pa Circuit
80
Measurements And Adjustment
81
Location Of Parts
85
Dummy Cont Board (05P0670): Optional
89
Sw Reg Board (05P068): Optional
89
Specifications
90
Mf Band Working Carrier Frequencies
94
Mf Band Ssb Working Carrier Frequencies
95
4/6 Mhz Itu Ssb Carrier Frequencies
96
Telex Channels
100
Mf Band Telex Frequency Table
100
Contents Of Drawings
115
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