Pioneer VSX-52TX Service Manual page 140

1
Pin Function
QQ
3 7 63 1515 0
No. Pin Name
1 VDD
A
2 1WUP
3 NC
4 MR SW
5 NC
6 MJOG A
7 MJOG B
8 VENCB
9 VENCA
10 DISPRST
11 X2
12 X1
B
13 IC
14 XT2
15 XT1
16 VDD
17 12V TRG
18 NC
19 INPUT ATT
20 NC
21 DISP RDY
22 DISP CK
C 23 DISP DO
24 DISP DI
25 AVSS
26 UART SW
27 NC
TE
L 13942296513
28 NC
29 TEST
30 KEY 4
31 KEY 3
32 KEY 2
33 KEY 1
D
34 AVDD
35 AVREF
36 232C DET
37 DISP EN
38 MRIN
39 SRIN
40 VSS
41 12VDET
42 MICDET
43 SWDET
44 TEMP2
E
45 NC
46 VDD
47 MCACOLED
48 1394LED
49 S1
50 S2
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2
I/O
−
VDD(5V)power supply
I Wakeup
−
NC
O Multi room input Pioneer / others L: Pioneer
−
NC
I MULTI JOG input A
I MULTI JOG input B
−
5V Volt(-)
−
5V Volt(+)
I Reset signal in put
−
Input clock 5MHz
−
Input clock 5MHz
−
Vss Power supply 5V
−
−
−
5V power supply
O " H" at ON
−
NC
I INPUT Atteneuator
−
NC
O Communication enabling signal to the display microcomputer
O Communication clock signal with the OSD-IC/display microcomputer
O Communication data in signal with the display microcomputer (N ch open drain)
I Communication data out signal with the OSD-IC/display microcomputer (N ch open drain: pullup)
−
Ground
O
−
NC
−
NC
I TEST Mode
I KEY AD input
I KEY AD input
I KEY AD input
I KEY AD input
−
V+5
−
5V reference voltaage
I For 232C signal input detection
I Communication enabling signal to the display microcomputer
I Remote control input of sub room (active : H)
I Remote control input of main room
−
Ground
I 12V detection
I MIC detection
I SW detection
I Temperature detection Level 2
−
NC
−
V+5
O MCACC LED
O 1394 LED
O FL p_35s Drive
O FL p_34s Drive
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8
Pin Function
Q Q
3 6 7 1 3
u163
.
VSX-52TX
3
4
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
m
co
4
9 9
Active
H
H
H
2 8 9 9