Digital Section - Onkyo TX-8020B Service Manual

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SCHEMATIC DIAGRAMS-14(PART-14)

DIGITAL SECTION

Model No. TX-8020 (MPP) SCHEMATIC DIAGRAM (PART-14) Digital Section
1
BADG-1269
U0050 DIGITAL PC BOARD
TX-8020 MPP ONLY
C7502
R7503
104Z
2 L7501 120
22u 50V
4
BK1608HS102-T C7501
3
1
2
5
C7512
R7513
104Z
L7511 120
22u 50V
BK1608HS102-T
C7511
1 2 3 4
P7502
NEJITANSI ST3
3
R7507
1
VOUT
47
3
VCC
GND 2
R7621
R7622
R7623
4
R7624
R7625
R7626 330
5
C
S7903 S7902
NC
NSS-22203 NSS-22203
R7912 NC
R7909
NC
NC
R7910
Q7503
74HCU04F
L7502
1 14 LBC2518T470M
VCC
13
2
IN6
12
3
OUT6
11
4
IN5
10
5
OUT5
9
6
IN4
8
7 GND
OUT4
R7618 220
R7617 150
R7616 47
R7615 47
L7601
LBC2518T4R7M
330 25 12 R7612 10k
MC/SCL MPIO_B1
26 11 R7611 10k
MS/ADR1 MPIO_B0
330
27 10 R7610 10k
MODE MPIO_C3
28 RXIN7/ADR1 9 R7609 10k
MPIO_C2
29 8 R7608 10k
RXIN6/ALRCKI0
MPIO_C1
30 7 R7607 10k
RXIN5/ABCKI0
MPIO_C0
470 31 6 R7606 10k
RXIN4/ASCKI0 MPIO_A3
330 32 5 R7605 10k
RXIN3 MPIO_A2
330
33 4 R7604 10k
RXIN2 MPIO_A1
34 3 R7603 10k
RXT MPIO_A0
R7627
35 2 R7602 47
RXIN1 NPCM/INT1
36 VDDRX 1 R7601 47
ERROR/INT0
L7602
BLM18PG181SN1D
X7601
24.576MHz
D E
S7901
NC NC
NSS-22203
NSCT-23P2116
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6
R7906
NC
R7907
NC
C7710
102J
R7701
330
L7701
LBC2518T4R7M
+5.0V
Q7902
L7901
78M05(NJM78M05FA)
LBC2518T4R7M R7702
I O
33
G
C7709
104K
Q7901
+3.3V
S-812C33AUA-C2N
R7901
O I
150 1W
G
F G
P403A
5 4 3 2 1
+12V
R7903 22
R7904 22
R7809
-12V
R7801 1.2k
2.2k
R7803 R7817
2.2k
1.2k
R7810
R7802 1.2k
2.2k
R7804 R7818
2.2k
1.2k
TX-8020
H
Q7821
2SA1162-GR
C7813
47u 50V
Q7829
2SA1162-GR
C7815
681J
R7855
2.2k
C7814
47u 50V
C7816
681J
R7856
2.2k