Onkyo DR-S2.2 Service Manual page 9

MICROPROCESSOR TERMINAL DESCRIPTION-1
Q8001: MPD784225GC-165-8BT
NO. PIN NAME
1 TRAYIN
2 NU
3 NU
4 NU
NU
5
DVDPOWER
6
AVREF
7
XS1
8
9 NU
10 XCLK
11 XRESET
12 XSO
XSCLK
13
XREADY
14
MDRDY/FPHS
15
MCSD/FPSI
16
17 MCSDO/FLSO
18 MCCLK/FPCLK
19 MCRST
20 NU
21 VCTLA
22 VCTLB
23 NU
24 TPRT
25
VPRT
26
HPIN
27
NU
28
SPB
29 SWNONE
30 SELSDO
31 SELSCLK
32 SELMUT
33
VSS1
34
SPACS
35
SPAFR
36
POWERL
37 AMUT
38 TUMUT
39 SD
40 STEREO
I/O ACTIVE DESCRIPTION
I A/D Input pin of detected signal of tray state.
No used (Connect to ground)
No used (Connect to ground)
No used (Connect to ground)
No used (Open)
O H Output pin of control signal for power supply of DVD main circuit.
Input pin of reference voltage or D/A converter.
I H Input pin of latch signal from microprocessor in DVD main board.
No used.
I CLK Input pin of clock signal from microprocessor in DVD main board.
O H Output pin of reset signal to microprocessor in DVD main board.
O H Output pin of data to microprocessor in DVD main board.
O CLK Output pin of clock signal to microprocessor in DVD main board.
O H Output pin of communication for microprocessor in DVD main board.
H Input pin of ready data from Sub-microprocessor.
I
I H Input pin of data from sub-microprocessor.
O H Output pin of data to sub-microprocessor.
O CLK Output pin of serial clock to sub-microprocessor.
O L Output pin of reset signal for Sub-microprocessor.
No used
H
Output pin-1 of control signal for video signal.
O
H Output pin-2 of control signal for video signal.
O
No used
L Input pin of signal from thermal detection circuit.
I
H Input pin of DC voltage detection signal from power amplifier.
I
H Input pin of detection signal from insert state of headphone plug.
I
H No used.
H
Input pin of control signal for seaker-B relay drive.
O
No use.
O
H Output pin of serial data latch for BD3811 (volume and selector control IC).
O
CLK Output pin of serial data clock for BD3811 (volume and selector control IC).
O
H Output pin of muting signal for BD3811 (volume and selector control IC).
O
H Ground pin.
H Output pin of control signal for center speaker relay and surround speaker relay drive.
O
H Output pin of control signal for front speaker relay drive.
O
H
Output spin of control signal for main power relay drive.
O
H
Output pin of control signal for audio muting circuit.
O
H Output pin of control signal for of tuner muting circuit.
O
L Input signal of detection signal of receiving state of broadcast.
I
L Input pin of detection signal of FM stereo pilot signal.
I
Page 9
DR-S2.2