Pioneer VSX-1015TX-S Service Manual page 131

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QQ
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Pin Function
No. Pin Name
1 NECK 8
2 DISP RST
3 DISP EN
4 DISP RDY
5 DISP DI
6 DISP DO
7 DISP CLK
8 GND
9 CNVSS
10 I2C CK
11 I2C DT
12 XRESET
13 XOUT
14 GND
15 XIN
16 5V
17 NMI
18 WAKEUP
19 NC
20 1W WUP
21 DECO MUTE
22 DSP OL
23 C4052A
24 C4052B
25 NC
TE
L 13942296513
26 NC
27 NC
28 OSD CK
29 NC
30 OSD DT
31 232C RXD
32 232C TXD
33 CLK
34 232C CTS
35 DSP DI
36 DSP DO
37 DSP CLK
38 DSP RST
39 DSP SS
40 BUSY
41 DSP HREQ
42 DSP MODE
43 DSP MUTE
44 ADMD
45 DIR DO
46 DIR CS
47 LSSN
48 DIR RST
49 DIR ERR
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50 XTLO
.
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I/O
O Limiter control
O Display microcomputer reset signal
O Communication enabling signal to the display microcomputer
I Communication enabling signal from the display microcomputer
O Communication data out signal with the display microcomputer (N ch open drain: pullup)
I Communication data in signal with the display microcomputer (N ch open drain)
O Communication clock signal with the display microcomputer
−
Ground
−
5.1kΩ pulldown
O
Communication clock signal with VIDEO CONVERTER IC (Y/C SEPARATOR IC, CHROMA DECODER IC)
O
Communication data signal with VIDEO CONVERTER IC (Y/C SEPARATOR IC, CHROMA DECODER IC)
−
Reset
−
Oscillator
−
Ground
−
Oscillator
−
5V power supply
I Cannot use it as usual input port
I Wakeup
– NC
I Wakeup signal at standby (from the display microcomputer)
I Boot success detecting port of DSP
I Communication enabling signal to the display microcomputer
O VIDEO Component SW Control
O VIDEO Component SW Control
– NC
– NC
– NC
O Clock signal for OSD IC Control
– NC
O Data signal for OSD IC Control
O For 232C rewriting (data output)
I For 232C rewriting (data input)
- Not used (For rewriting)
O For 232C rewriting (communication permission)
O Communication data out signal with DSP, DIR
I Communication data in signal with DSP
O Communication clock signal with the DSP, DIR
O DSP reset signal L: reset, H: release reset
O Slave select signal to DSP
I MCACC used
I Error detection signal of DSP
O Mode selection of DSP (ROM/RAM) H: ROM mode, L: RAM (PPP) mode
O DSP Assy mute
O DSP Analog/Digital select signal H : Digital, L : Analog
I Communication data in signal with the DIR/DAC
O Communication chip select signal with the DIR/DAC
O DSP SP Config : LSSN Setting
O DIR reset signal
I Lock/Unlock signal from DIR
O Selection X'tal to DIR
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2 9
8
Pin Function
L: reset, H: release reset (pulldown)
(100kΩ pullup)
Q Q
3 6 7 1 3 1 5
co
.
VSX-1015TX-K
7
8
9 4 2 8
(pulldown)
0 5 8 2 9 9 4 2 8
m
9 9
A
Active
H
L
H
H
–
–
–
–
–
–
B
–
–
–
–
–
–
–
H
–
H
L
C
H
–
–
–
9 9
–
–
–
–
–
–
D
–
–
–
–
–
–
L
L
H
H
H
E
H
H
–
L
H
L
H
L
F
131
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