Onkyo TX-RZ720 Service Manual page 34

1
PART-7 RS232C SECTION
BAETC-2025
D
C
B
A
1
2
RS-232C
*C2900
103K 50V
10
1
NC
6 J2900
TA WIRE
NC
2
*R2900
NC
7
330
3
NC
8
4
NC
9 *R2901
330
NC
5
NM
11
*C2901
*P2901
MDS-09P-V-01(DSUB9P)
2
3 4
NM
NPLG-3P131
GNDDG
RS232RXD
RS232TXD
Destination
2A,2E,2F,2G,
2C,2D,2H,2H,2K,2L,2N,2P,
2Q,2R,2T,2W,2X,2Z
2AG,2AH
3 4
5
Schematic Diagram
Model
TX-NR578
DRX-2.1
HT-R997
TX-NR676
TX-NR676E
TX-RZ620
DRX-3.1
HT-R997
TX-NR777
TX-RZ720
TX-RZ820
VSX-LX302
*P2900B
BATRM-2023
(PART-7)
PH
P2900B,P2901,C2900,R2900,R2901
5
6
Destination
2A 2B
2C 2D
2E 2F
2E
2E 2F 2G
2Z
2H 2J 2H
2E 2F
2K
2K 2L
2N 2P
2Q 2R 2T
2W 2X
2AG 2AH
All No Mount
All Mount
TX-RZ620/RZ720
6
D
C
B
A