Marantz AV7701, Service Manual

Page: 152 / 266

152
DGND
TO MAIN CPU
TO DIGITAL SUPPLY POWER
TO DIGITAL CONNECT
TO
SC
PU
PAGE 15_D5
PA
GE
16_
B1
PAGE 13_A4
PAGE 14_B1
GN
D
VC
C
THE
R
DE
T C
THE
R
DE
T D
SW
M3
.3V
OPEN
14 13 12 11 10 9 8
7 6 5 4 3 2 1
IC
24
1
TC
74
VH
C125
FT
R240
1
4.7
K
C240
1
0.1
R240
3
33
R240
4
33
R2402
4.7K
R241
7
22
K
R241
6
OP
EN
C240
8
0.0
1
R241
5
470
K
R241
4
10
0
R241
1
15
K
C240
7
0.0
1
R240
7
100
K
C240
4
0.0
1
R242
2
22
K
R242
1
OP
EN
C240
9
0.0
1
R242
0
470
K
R241
9
10
0
R241
0
100
K
C240
6
0.0
1
R240
9
33
K
C240
5
0.0
1
R241
3
22
K
R242
7
22
K
R242
6
OP
EN
C241
0
0.0
1
R242
5
OP
EN
R242
4
10
0
R244
1
0
R244
2
0
T18
1
T18
2
T18
3
T18
4
T185
T186
T187
T188 T189
Q2401
RT1N141C
Q2402
ISA1530AC1
Q2403
2SC3052
Q240
4
2S
C305
2
Q2406
2SC3052
Q2405
ISA1530AC1
Q2407
2SC3052
Q2408
2SC3052
Q2411
2SC3052
Q2414
2SC3052
R243
1
22
K
C241
1
0.0
1
R242
9
470
K
R242
8
10
0
R243
3
0
T11
Q2415
2SC3052
R243
7
22
K
C241
2
0.0
1
R243
5
470
K
R243
4
10
0
R243
9
0
T17
Q2418
2SC3052
1 2 3
CN203
20022WS-03C
CJP03GA208ZY
R241
2
10
0
R240
8
10
0
R243
0
10
K
R243
6
10
K
RE
MO
TE
3.3
V
SW
M3
.3V
DGN
D
DC
_P
RO
T
AS
O_
PR
OT
THE
R_
PR
OT
A
THE
R_
PR
OT
B
DC
DE
T4
DC
DE
T3
AS
OD
ET
THE
RM
AL
DE
TB
THE
RM
AL
DE
TA
SCPUTXD
SCPURXD
DETECT(MCU)
DETECT
DC
DE
T4
DC
DE
T3
THE
RM
AL
DE
TB
THE
RM
AL
DE
TA
AS
OD
ET
DC
_P
RO
T
THE
R_
PR
OT
B
THE
R_
PR
OT
A
AS
O_
PR
OT
THE
R_
PR
OT
B
THE
R_
PR
OT
A
AS
O_
PR
OT
DC
_P
RO
T
DC
DE
T4
DC
DE
T3
AS
OD
ET
THE
RM
AL
DE
TB
THE
RM
AL
DE
TA
232I_
MO
232
O_
MI
232I
MO
3
232
OM
I3
232
CO
NT
THE
R_
PR
OT
D
THE
R_
PR
OT
C
THE
R_
PR
OT
C
THE
R_
PR
OT
D
THE
R_
PR
OT
C
THE
R_
PR
OT
D
STBY POWER GND POWER + POWER -
8 7 6 5 4 3 2 1
A
B
C
D
E
F
CN203
TO BN203
AB
TO AA
AJ
TO AI
BD
TO BC
BF
TO
B
E
SCHEMATIC DIAGRAMS (15/31)
DIGITAL UNIT (5/15)