Marantz AV7701 - Digital Unit (5;15)

152
DGND
TO MAIN CPU
TO DIGITAL SUPPLY POWER
TO DIGITAL CONNECT
TO SCPU
PAGE 15_D5
PAGE 16_B1
PAGE 13_A4
PAGE 14_B1
GND
VCC
THER DET C THER DET D SWM3.3V
OPEN
14 13 12 11 10 9 8
7654321
IC241
TC74VHC125FT
R2401
4.7K
C2401
0.1
R2403
33
R2404
33
R2402
4.7K
R2417
22K
R2416
OPEN
C2408
0.01
R2415
470K
R2414
100
R2411
15K
C2407
0.01
R2407
100K
C2404
0.01
R2422
22K
R2421
OPEN
C2409
0.01
R2420
470K
R2419
100
R2410
100K
C2406
0.01
R2409
33K
C2405
0.01
R2413
22K
R2427
22K
R2426
OPEN
C2410
0.01
R2425
OPEN
R2424
100
R2441
0
R2442
0
T181 T182 T183 T184
T185
T186
T187
T188 T189
Q2401
RT1N141C
Q2402
ISA1530AC1
Q2403
2SC3052
Q2404
2SC3052
Q2406
2SC3052
Q2405
ISA1530AC1
Q2407
2SC3052
Q2408
2SC3052
Q2411
2SC3052
Q2414
2SC3052
R2431
22K
C2411
0.01
R2429
470K
R2428
100
R2433
0
T11
Q2415
2SC3052
R2437
22K
C2412
0.01
R2435
470K
R2434
100
R2439
0
T17
Q2418
2SC3052
123
CN203
20022WS-03C
CJP03GA208ZY
R2412
100
R2408
100
R2430
10K
R2436
10K
REMOTE3.3V SWM3.3V
DGND
DC_PROT
ASO_PROT
THER_PROTA
THER_PROTB
DCDET4 DCDET3
ASODET THERMALDETB THERMALDETA
SCPUTXD
SCPURXD
DETECT(MCU)
DETECT
DCDET4 DCDET3
THERMALDETB
THERMALDETA
ASODET
DC_PROT
THER_PROTB
THER_PROTA
ASO_PROT
THER_PROTB
THER_PROTA
ASO_PROT
DC_PROT
DCDET4
DC
DET3
ASODET THERMALDETB
THERMALDETA
232I_MO
232O_MI
232IMO3
232OMI3
232CONT
THER_PROTD
THER_PROTC
THER_PROTC
THER_PROTD
THER_PROTC
THER_PROTD
STBY POWERGND POWER + POWER -
87654321
A
B
C
D
E
F
CN203
TO BN203
AB
TO AA
AJ
TO AI
BD
TO BC
BF
TO BE
SCHEMATIC DIAGRAMS (15/31)
DIGITAL UNIT (5/15)