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Yaesu Manuals
Transceiver
FT-991A
Technical supplement
Table Of Contents - Yaesu FT-991A Technical Supplement
Hf/vhf/uhf all mode transceiver
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Also See for FT-991A
:
Operating manual
(158 pages)
,
Reference manual
(21 pages)
,
Instruction manual
(15 pages)
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Table Of Contents
132
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Table of Contents
Table Of Contents
1
Specifications
2
Exploded View
4
Block Diagram
10
Connection Diagram
11
Introduction And Precautions
12
Alignment Preparation & Precautions
12
Required Test Equipment
12
Vdd Meter Adjustment
13
Comp Meter Adjustment
13
Vco Adjustment
14
2Nd/3Rd Local Oscillator Adjustment
15
Fm Local Oscillator Adjustment
16
1St Local Oscillator Adjustment
17
Mcf Adjustment
18
If Trap Adjustment
19
Rf Agc Adjustment
19
If Gain Adjustment
20
S-Meter Adjustment
21
S-Meter Adjustment (Fm)
21
Fil Gain Adjustment
21
Fm Squelch Adjustment
22
Fm Center Stop Adjustment
22
Scope Adjustment
23
Transmitter Adjustment
24
Tx Ift Adjustment
24
V-U Pa Unit Adjustment
25
Drive Stage Idling Current Adjustment
26
Semi-Final Stage Idling Current Adjustment
26
Final Stage Idling Current Adjustment
26
V_U-Pa Unit Tx Adjustment
26
Hf Pa Unit Adjustment
27
Cm Coupler Balance Adjustment
28
Current Alc Adjustment
29
Alc Meter Adjustment
30
Tx Output Power/Po Meter/Txg Adjustment
30
Am-Txg Adjustment
32
Rev-Alc Adjustment
33
Fm Max Deviation Adjustment
33
Idd Meter Adjustment
34
Swr Meter Adjustment
35
Main Unit Circuit Diagram
36
Main Unit Parts Layout
37
Main Unit Parts List
39
Circuit Diagram - Pll Unit
68
Parts Layout - Pll Unit
69
Pll Unit Parts List
70
Edsp Unit Circuit Diagram
73
Edsp Unit Parts Layout
74
Edsp Unit Parts List
75
Cntl Unit Circuit Diagram
79
Cntl Unit Parts Layout
80
Cntl Unit Parts List
82
Hf-Pa Unit Circuit Diagram
87
Hf-Pa Unit Parts Layout
88
Hf-Pa Unit Parts List
90
V_U-Pa Unit Circuit Diagram
96
V_U-Pa Unit Parts Layout
97
V_U-Pa Unit Parts List
99
Panel Unit Circuit Diagram
105
Panel Unit Parts Layout
106
Panel Unit Parts List
107
Tuner Unit Circuit Diagram
113
Tuner Unit Parts Layout
114
Tuner Unit Parts List
116
Jack Unit Circuit Diagram
119
Jack Unit Parts Layout
120
Jack Unit Parts List
121
Scp Unit Circuit Diagram
122
Scp Unit Parts Layout
123
Scp Unit Parts List
124
Dsp Unit Circuit Diagram
127
Dsp Unit Parts Layout
128
Dsp Unit Parts List
129
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