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MZ-E707
23 23
6-8. SCHEMATIzC DIAGRAM – AUDIO SECTION –
z
Refer to page 24 for Notes.
z
Refer to page 25 for IC Block Diagrams.
IC301
C204
C201
R201
R202
R104
C103
R106
R103
R203
R206
R204
C203
C101
R102
R101
C104
C305
C306
C304
R302
R303
C804
TAP801
CN802
S801
S802
S803
S804
S805
S808
S809
R811
R812
R813
R814
R301
C301
C303
C302
Q301
C803
CN803
CN804
S806
R815
D802
D801
C102
C202
D861
D860
C860
TA2131FL
6800p
1
33k
33k
10
0.22
6.8k
4.7k
4.7k
6.8k
10
0.22
1
33k
33k
6800p
2.2
22
4V
4.7
6.3V
6.8k
220k
0.01
(OPEN/CLOSE)
20P
(OPEN/CLOSE)
6.8k
10k
15k
33k
33
10
6.3V
1
0.1
2SC4738FL
470p
9P
9P
68k
TLQU1008
220
2.5V
220
2.5V
MAZS068008SO
MAZS068008SO
0.1
SET KEY
XWK1
OPEN/CLOSE
HOLD SW
GND
XHP STB
MUTE
BEEP
VIF
UNREG
R IN
L OUT
AGND
AGND
L IN
R OUT
STB
MUTE
BST SW
BEEP
GND
VREF IN
+B
OUT L
PWR GND
OUT R
DET
AGC IN
BTS
NF2
LPF2
NF1
LPF1
VREF
OTUA
BEEP
IN L
IN R
VCC
ICMT
BEEP
OTUB
HOLD
ON
OFF
MAIN BOARD
CN801
REFERENCE
VOLTAGE
SWITCHING
LED R
LED G
VC
LED O
LED R
LED G
SET KEY
XWK1
OPEN/CLOSE
HOLD SW
GND
VC
LED O
LED R
LED G
SET KEY
XWK1
OPEN/CLOSE
HOLD SW
GND
VC
LED O
GROUP
KPTB-1612SURKMGKC
VOLUME-
VOLUME+
HEADPHONE AMP
1
5
9
1
5
9
(ORANGE)
(GREEN)
(RED)
D801,802
(3 COLOR LED)