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AA-R22/L
Akai AA-R22/L User Manual
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Ill.
CONTROLS
4
5
6
·-
-
--
'"-"
23
~
□]~~
-
-·
-
-
..
11
12
13
14
15
18
19
Fig.
2-1
Controls
1.
POWER
SWITCH
17.
VOLUME
(UP/DOWN)
BUTTON
2.
ACOUSTIC
MEMORY
BUTTONS
18.
TAPE
1
BUTTON
3.
DEFEAT
BUTTON
19.
TAPE
2
BUTTON
4.
BASS
AND
TREBLE
CONTROL
20.
AM
STEP
SELECTOR
(Not
on
some
models)
5.
BALANCE
CONTROL
21.
RESET
BUTTON
6.
TUNING
MODE
SELECTOR
22.
FM
DE-EMPHASIS
SELECTOR
IN.ot
on
some
models)
7.
FL
DISPLAY
23.
ANTENNA
TERMINALS
8.
PHONO
BUTTON
24.
AM
LOOP
ANTENNA
9.
BAND
SELECTOR
25.
GROUND
TERMINAL
10.
AUX
BUTTON
26.
PHONO
JACKS
11.
SPEAKER
SELECTOR
27.
AUX
JACKS
12.
FM
MODE
SELECTOR
28.
TAPE
1
REC/PLAY
JACKS
13.
PHONES
JACK
29.
TAPE
2
REC/PLAY
JACKS
14.
PRESET
STATION
BUTTON
30.
A
AND
B
SPEAKER
SYSTEM
TERMINALS
15.
TUNING
(UP/DOWN)
BUTTON
31.
AC
OUTLETS
(Not
on
some
models)
16.
FADER
BUTTON
32.
POWER
CORD
SERVICE
MANUAL
AA·R22/L
36
39
41
Table of Contents
Section 1 Circuit Operation Description
5
Table of Contents
5
Outline of Aa-R Series System
6
Acceptance of Input Selector Data
6
Fl Display
6
Selection of Input Signal
6
Volume Control
6
Tone Control
6
Long-Time Back-Up by Capacitor
6
Display Data
10
Digit Output of
11
Description of Input Selector
12
And Tone Control
14
The Status that will be Established When
21
Reset Status When Power Is on
21
How to Make Letters
22
At600 Terminals Description
26
Display Selection Blank Period
27
Frequency Display Segment Data
27
Block Diagram of Pll IC Tc9125P Interior and Description of the Function of each Terminal
28
Pll Data for Pll IC (Tc9125P) Control
29
Frequency Control by Pll
31
Akai ZERO DRIVE CIRCUIT (AA-R42/R32)
32
In the Beginning
32
Principle of Akai Zero Drive Circuit
32
Dual-Pole DC Servo (Aa-R42/R32/R22)
35
Section 2 Service Manual
37
Specifications
38
Dismantling of Unit
39
Ill. CONTROLS
40
Principal Parts Location
41
Am Step Selector
42
Conversion
42
Fm De-Emphasis Selector
42
Voltage Conversion
42
Adjustments
43
Clock Frequency Adjustment
43
Tuner Adjustment
43
Board Titles and Identification Numbers
46
Classification of Various P.C Boards
46
Service Manual
51
Model Aa-R32/L
52
Specifications
52
Model Aa-R42
53
Dismantling of Unit
54
Controls
56
Model Aa-R32/L
57
Principal Parts Location
57
Model Aa-R42
58
Am Step Selector
59
Conversion
59
Fm De-Emphasis Selector
59
Voltage Conversion
59
Adjustments
60
Clock Frequency Adjustment
60
Model Aa-R32/L, Aa-R42 Tuner Adjustment
61
Model Aa-R32/L P.C Board Titles .And
65
Model Aa-R42 P.C Board Titles and
66
Model Aa-R32/L Composition of Various P.C Boards
67
Model Aa-R42 Composition of Various P.C Board
72
Section 4 Parts List
77
Recommended Spare Parts
79
Tunerp.C Board Block
80
Control P.C Board Block
81
Eq P.C Board Block
81
Main Amp P.cboard Block
81
Assembly Block
83
Final Assembly Block
84
Recommended Spare Parts
85
Parts
86
Tuner Eq P.C Board Block
86
Control P.C Board Block
87
Main Amp.p.C Board Block
87
Power P,C Board Block
93
Assembly Block
95
Final Assembly Block
96
Index
97
4
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Akai AA-R22/L Specifications
General
Brand
Akai
Model
AA-R22/L
Category
Stereo Receiver
Language
English
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