Pioneer VSX-AX5i-S Service Manual page 169

5
Pin Function
No. Pin Name I/O
1 KEY5 I KEY AD input
2 MR SW O Multi room input Pioneer/others L: Pioneer
3 KEY1
4 KEY2
I KEY AD input
5 KEY3
6 KEY4
7 1W WUP O 1W correspondence main wakeup
8 HP I Headphone detection (active: H)
9 SR IN I Remote control input of main room
−
10 RESET Reset input from the main microcomputer
11 NC
O Non connection
12 NC
−
13 Vss Ground
−
14 XIN Oscillator
−
15 XOUT Oscillator
−
16 Vcc Power supply 5V
17 CHECKER I Checker mode detection (10kΩ pulldown)
18 NC
O Non connection
19 NC
20 NC
21 MIC SW I MIC detection
22 232C DET I 232C signal input detection
23 MR IN I Remote control input of sub room (active: H)
24 NC O Non connection
25 NC
26 NC O Non connection
27 NC
−
28 VEE Ground
29 NC
30 NC
31 NC
32 NC
33 NC
34 NC
O Non connection
35 NC
36 NC
37 NC
38 NC
39 NC
40 NC
5
6
Pin Function No. Pin Name I/O
VSX-AX5i-S
6
7
41 STANDBY O Standby LED
42 MCACC O MCACC LED
43 1394 O 1394 LED
44 NC
45 NC
46 NC
47 NC O Non connection
48 NC
49 NC
50 NC
51 INPUT_R I Input selector RIGHT
52 INPUT_L I Input selector LEFT
53 NC O Non connection
54 NC O
Non connection
55 VOL_– I Volume – direction
56 VOL_+ I Volume + direction
57 NC O Non connection
Surround back/SP-B relay ON/OFF
58 RY-SB O
(active: H)
59 RY-C/S O C/S relay ON/OFF (active: H)
60 NC O Non connection
61 RY-HP O Headphone relay ON/OFF (active: H)
62 RY-A O Speaker A relay ON/OFF (active: H)
63 NC O Non connection
64 NECK O 6/8Ω switch L: 6Ω, H: 8Ω, Initial: 8Ω
65 RDY O Communication ready with main UCOM
66 CLK O Communication clock with main UCOM
67 DO O Communication data out with main UCOM
68 DI I Communication data in with main UCOM
69 FL_LAT O FL DRV LAT
70 FL_CLK O FL DRV CLK
71 FL_DO O FL DRV DATA
72 FL_BK O FL DRV BK
−
73 AVSS Ground
−
74 VREF 5V reference voltage
75 NC O Non connection
76 CS I Communication CS with main UCOM
77 NC
78 NC
O Non connection
79 NC
80 NC
7
8
Pin Function
169
8
A
B
C
D
E
F