Chapter 4
4 - 10
Speaker control section
The speaker control section inputs the D/A converted sound data
[SOUND_R] converted with the 8bitD/A converter built into the MAIN
CPU to the audio power amplifier (IC40) through the buffer. The volume of
the speaker is also controlled with IC40.
MUTE is set at port C of the MAIN CPU.
( 7 )
SPEAKER
SPEAKER_G
JP24
OPEN
SHORT
BASS BOOST MODE
BASS BOOST
DISABLE
R360
100KF
R46
10KF
R47 10KF
R81
20KF
R82
20KF
R83
20KF
R84
20KF
C87
0.1uFFZ
C88
0.1uFFZ
C89
0.1uFFZ
C90
0.1uFFZ
+5VS
R85
20KF
IC40
LM4836MTX
+
C205
1.0UF/16V(T)3
+
C206
1.0UF/16V(T)3
C91
0.1uFFZ
IC42A
MAX4163EUA
C93
0.1uFFZ
SPEAKER CN
(6A)
R66
33KF
IC42B
MAX4163EUA
(6B)
JP24
0F
JP23
0F
C94
0.1uFFZ
R51
10KF
( 7 )
( 7 )
P7
DF13-2P-1.25H(21)
NF2
NFM21PC474R1C3
Power generating section
The power generating section is subdivided into the following two sections.
(1) VISO (+5 V) power generating section
(2) +1.9 V power generating section
Содержание FX-7302
Страница 10: ...viii ...
Страница 12: ......
Страница 60: ...Chapter 2 2 40 ...
Страница 62: ......
Страница 86: ...Chapter 4 4 18 ...
Страница 87: ...4 19 MAIN BOARD circuit diagram PCB 6956B Power connection table No 1 ...
Страница 111: ...4 43 MARK SENSOR BOARD PCB 6942 MARK SENSOR block Recoding paper 1 2 3 J1 DF4 3P 2C 5 3 4 2 1 PH1 ON2253R ...
Страница 112: ...4 44 MAGAZINE UP SENSOR BOARD PCB 6943A MAGAZINE UP SENSOR BOARD block 1 2 J1 DF4 2P 2C 1 2 3 S1 JPS1220 0401 ...
Страница 114: ...4 46 ...
Страница 116: ......
Страница 130: ......
Страница 131: ...6 1 MAIN BOARD PCB 6956B component side ...
Страница 132: ...6 2 MAIN BOARD PCB 6956B soldering side ...
Страница 133: ...6 3 OPERATION BOARD PCB 6957B component side ...
Страница 134: ...6 4 OPERATION BOARD PCB 6957B soldering side ...
Страница 135: ...6 5 ECG AMP BOARD PCB 6731D component side ...
Страница 136: ...6 6 ECG AMP BOARD PCB 6731D soldering side ...
Страница 137: ...6 7 MARK SENSER BOARD PCB 6942 component side ...
Страница 138: ...6 8 MAGAZIN UP BOARD PCB 6943A component side ...
Страница 139: ...6 9 CONNECTION BOARD PCB 7028 component side ...
Страница 140: ...6 10 ...
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Страница 151: ...7 9 Outline view 255 315 70 76 ...
Страница 152: ...7 10 ...
Страница 154: ......
Страница 160: ...Chapter 8 8 6 ...
Страница 161: ......
Страница 162: ...39 4 Hongo 3 chome Bunkyo ku Tokyo Japan Phone 81 3 3815 2121 Fax 81 3 3814 1222 4R2149A 200506 F ...