Pioneer VSX-1015-S Service Manual page 131

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