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12
12
MZ-B50
SCHEMATIC DIAGRAM – MAIN Section (1/4) – (Last digit –13, –21)
D301
R125
R124
R110
C124
C125
R127
C127
C123
R119
C106
R108
R109
R122
Q102
R322
R221
C227
R222
R208
R209
C223
C105
C205
R114
C109
R214
C209
R103
C101
R203
C201
Q326
R355
C351
C352
R344
R345
R356
R323
R324
C350
R341
Q319
Q320
R327
Q309
C331
R129
R229
R148
R149
R249
R334
C372
Q106
R130
R230
Q205
R134
R234
R135
C128
R137
R140
C132
R235
R237
C228
C230
C232
C129
R139
C235
R239
C136
R152
C142
C236
R252
C242
R153
R151
R253
C364
C365
C363
R337
C237
C137
R123
R223
C115
C215
R146
R246
C139
C239
C119
C219
R106
R206
C353
Q332
C354
R306
R308
C368
C369
R314
R316
C355
C370
C357
R312
R313
R329
C371
C349
R330
C347
IC306
C348
C358
R377
R378
R379
R366
C376
R359 C374
R363
R364
R365
Q330
D307
Q331
Q315
R325
R347
C345
C344
C346
R326
C341
C333
R349
C339
C334
C336
C337
C335
C361
C342
R340
R336
R328
R107
R207
C319
R301
L302
C315
C324
R335
R318
R317
TP334
TP338
TP337
TP336
R211
C211
R111
C111
R212
TP331
R302
TP333
R307
TP335
TP332
C330
C375
R227
R205
R105
R219
R213
R113
C320
C322
R218
R118
R309
C323
C217
C117
Q322
R248
R247
IC311
C216
TP342
TP343
C118
C218
TP344
C327
C316
C207
C317
C107
C318
R319
R251
R305
IC303
IC307
R350
C343
TP355
Q310
Q302
Q204
C135
TP341
IC309
R250
C233
R241
C229
C133
R150
R141
Q207
R338
Q334
C241
R225
RB303
R101
R201
C314
C313
R816
C311
R228
R128
R121
R224
C225
C224
R210
C210
C212
C302
C203
C103
C202
C220
R202
R102
C120
C222
C122
C305
R104
C213
C113
Q203
R232
R215
R115
R132
C116
C312
R147
IC302
RB304
R346
C321
C114
R217
R117
Q333
Q104
Q103
Q336
Q206
Q338
Q312
Q305
Q337
Q304
Q202
Q308
Q301
Q303
Q325
Q327
Q321
Q313
IC313
R354
Q316
S301
IC310
D101
D201
J303
J301
J304
C112
R116
R216
C140
C240
FB301
FB302
FB305
FB306
R120
R220
C143
C243
RV301
C206
Q307
R226
C226
C340
D303
C309
C308
C303
C304
C307
L303
L301
R320
RB302
IC301
C301
C310
C110
C102
C108
C208
C306
IC305
C141
R342
Q306
R357
R358
C214
R245
R145
R343
C326
C325
Q101
Q201
Q335
R143
R243
C362
Q314
R332
Q328
Q318
C356
Q311
IC308
R240
C126 R126
Q107
C130
Q105
FB144
FB244
FB351
R351
FB333
D302
FB307
FB308
FB309
R333
IC304
R112
R204
MAZZ068H
100k
100k
6.8k
0.1
0.1
10k
0.01
1
470k
470
2.5V
1k
4.7
1k
2SC5585TL
1M
15k
0.01
1k
1k
4.7
1
0.47
0.47
47k
10
6.3V
47k
10
6.3V
330
47
4V
330
47
4V
2SC5585TL
47k
0.1
0.1
2.2k
2.2k
47k
47k
33k
0.1
100
DTC144EUA
DTC144EUA
10k
DTC144EE
0.01
3.3
3.3
470k
47k
47k
1M
10
6.3V
2SB1295-
UL6
10k
10k
2SD1328
10k
10k
3.3k
0.033
1k
100k
1000p
3.3k
1k
0.033
0.1
1000p
0.022
100k
1000p
100k
0.1
4.7k
0.1
0.1
4.7k
0.1
100k
100
100k
10
6.3V
47
4V
10
6.3V
100k
0.01
0.01
10k
10k
1
1
470k
470k
10
6.3V
10
6.3V
0.1
0.1
10k
10k
0.047
XP6501
0.1
470k
470k
1000p
47
4V
1.5k
47k
150p
1000p
0.047
6.8k
33k
10k
1000p
1000p
47k
0.1
NJM2072M
22
4V
0.047
1M
4.7k
4.7k
3.3k
2.2
6.3V
100k
1
10k
470k
1k
2SC4116
SB02-03C
2SA1586
DTC144EUA
10k
220k
0.1
100p
4700p
4.7k
1
4700p
1k
2.2
6.3V
10
6.3V
47
6.3V
10
6.3V
1
1
1
47k
4.7k
4.7k
4.7k
4.7k
0.01
470k
47
4V
22
4V
47k
100
100
(XJDET)
(OPT-DET)
(LIN- R)
(LIN- L)
68k
0.5%
100p
68k
0.5%
100p
47k
0.5%
(DVCC)
1k
(D-IN)
100
(AGND)
(DGND)
0.1
0.01
10k
1.5k
1.5k
470k
47k
47k
10
6.3V
47
4V
6.8k
0.5%
6.8k
0.5%
100
10
6.3V
0.47
0.47
2SK1829
470k
47k
NJM2107F
1000p
2200p
2200p
0.1
0.1
0.22
0.1
0.22
0.1
100
100
100
OPA2340EA
NJU7015R
1k
2.2
6.3V
UN9115
FDV304P
2SB1295- UL6
1000p
RN5RZ25AA
47k
0.01
10k
0.022
0.01
47k
10k
2SA1586
100
XP6501
1
100k
47k
0
0
1000p
4700p
1M
0.1
100k
100k
15k
100k
0.1
0.1
6.8k
1
6.3V
10
6.3V
22
4V
4.7
6.3V
4.7
6.3V
0.1
1000p
220k
0.5%
220k
0.5%
1000p
1
1
0.01
1k
0.5%
22
4V
22
4V
2SD1328
0
4.7k
0.5%
4.7k
0.5%
0
1000p
0.047
47k
NJM2140R
47k
1k
0.1
47p
100k
0.5%
100k
0.5%
UN9115
2SB1295-UL6
2SD1328
2SK1829
2SB1295-
UL6
UN9115
2SK1829
S12302DS
UN9115
2SB1197K
2SC5585TL
UMD12N
DTC144EE
UMB11
UMD12N
2SC5585TL
XP1215
XP4501
BA6640F
1k
2SB1197K
NJU7015R
MA8051
MA8051
10
6.3V
2.2k
0.5%
2.2k
0.5%
10
6.3V
10
6.3V
0
0
0
0
3.3k
3.3k
1
1
10k/10k
470
2.5V
UMD12N
4.7k
1
1
MAZS068
0.1
0.1
0.1
10
6.3V
47
4V
0
1k
AK4517B
0.1
0.01
1
6.3V
0.1
1
1
10
6.3V
RN5RZ25AA
1
220k
UMD12N
1k
1k
47p
0
0
220k
1000p
1000p
S12302DS
S12302DS
UN9115
2.2k
2.2k
0.047
2SK1829
10k
UN9115
HN1K02FU
0.1
UN5214
NJM2140R
100k
1
4.7k
2SA1586
0.1
2SD1328
0
MAZZ068H
0
0
0
0
RN5RZ25AA
47k
0.5%
1k
0.5%
RIN3
LIN3
TST2
RIN2
LIN2
TST1
RIN1
LIN1
NC
NC
NC
S5B
CMODE
NC
M
C
L
K
L
R
C
K
B
C
L
K
S
T
D
O
N
C
S
T
D
1
D
IF
0
D
IF
1
N
C
T
S
T
3
N
C
D
C
O
D
E
0
D
C
O
D
E
1
C
C
L
K
CDT O
CDT I
DGND
VD
NC
VB
VA
NC
NC
AGND
NC
NC
VCOM
DZF
OPGAR
ROUT1
L
O
U
T
1
O
P
G
A
L
V
R
D
A
R
O
U
T
2
L
O
U
T
2
V
R
A
D
N
C
N
C
P
G
A
R
A
D
C
R
V
C
M
R
N
C
V
C
M
L
A
D
C
L
P
G
A
L
G
N
D
IN
O
U
T
N
C
GND
IN
OUT
XCE
NC
S
GND
XMICDET
MIC-R
MIC-L
MIC-GND
RVCC
DTC K
KEY-R
RGND
HP-GND
HP-L
HP-R
D
C
O
D
E
2
N
C
+2.5V REGULATOR
A/D,D/A CONVERTER
VCC
XRST
PD
X
C
S
VSS
VCC
VSS
VCC
XCS ADA
XPD ADA
XIC RST
FS256
LRCK
XBCK
DADT
SCK0
SDI0
SDO0
DIG GND
ANA GND
POWER
VC
VR
VG
BEE P
MUTE
V U P
HP AMP SW
GND
IN
OUT
XCE
NC
GND
+2.5V REGULATOR
VCC
MIC AMP
RMC DTCK
RMC KE
Y
XHP DET
GND
VCC
BUFF ER
+30dB AMP
VCC
OUT2
OUT1
TCONT
INPUT
GAIN
AMPOUT
GND
VOR OUT
VOR
SPA MP
RECMODE CTL
SPVCC
STNBY
PWR MUTE
INVOUT
NFB
IN2
NF2
GND
MUTE OUT2
PWR OUT2
BIAS
RFC
IN1
NF1
VCC
RF OUT
BIAS OUT
PWR OUT1
MUTE OUT1
SP A
SP B
MICAMP
XMIC DET
XOPT CONT
XJACK DET
OPT DE T
L MIC
R MIC
MIC GND
DIN1
AMP
VOICE
UP
VOR
VOR
SWITCH
SWITCH
SWITCH
SWITCH
SWITCH
SWITCH
SWITCH
SWITCH
SWITCH
SWITCH
SWITCH
SWITCH
SWITCH
SWITCH
SWITCH
MIC AMP
SWITCH
SWITCH
SWITCH
B+ SWITCH
B+ SWITCH
SWITCH
VOR
SWITCH
Q330-332
SWITCH
SWITCH
SWITCH
SWITCH
LINE/HP
MUTING
MUTING
CONTROL
MUTING
SWITCH
Q307,309
LINE
/HP
OUT ON/
OFF
CONTROL SWI
TCH
LINE /HP OUT ON/ OFF
SWITCH
BUFFER
BEE
P TONE
BUFFER
BEEP TONE
SP AMP
CONTROL
MUTING
SWITCH
MUTING
MUTING
SWITCH
SWITCH
VOICE
UP
VOICE
UP
SWITCH
SWITCH
Q101,201
/REMOTE
B+ SWITCH
VR
S GND
VC
X
C
E
ADDT
S GND
+2.5V REGULATOR
MIC SENS
H
L
MIC
(PLUG IN POWER)
LINE I N
(OPTICA L)
US,
Canadian
MODEL
MODEL
AEP,JEW
MODEL
AEP
,JE
W
US,
Canadian
MODEL
US,
Canadian
MODEL
MODEL
AEP,JEW
US,
Canadian
MODEL
US,
Canadian
MODEL
MODEL
AEP,JEW
BOARD
MAIN
BOARD
MAIN
BOARD
MAIN
BOARD
MAIN
BOARD
MAIN
BOARD
MAIN
(3/4)
BOARD
MAIN
(3/4)
(2/4)
(3/4)
(3/4)
BOARD
MAIN
(3/4)
(2/4)
BOARD
MAIN
(4/4)
(3/4)
BOARD
MAIN
(3/4)