Onkyo DX-C34, Service Manual

Page: 41 / 66

DX-C3 4
MAIN MICROPROCESSOR TERMINAL DESCRIPTION-2
55 P123/RTP3 DACEMPHASYS O The de-emphasis control terminal of DAC. H=De-emphasis ON/L=OFF
56 P124/RTP4 O Not used. Open pin.
57 P125/RTP5 O Not used. Open pin.
58 P126/RTP6 SYSIN I RI system code input pin.
59 P127/RTP7 SYSOUT O RI system code output pin.
60 ~RESET RESET Reset pin of microprocessor.
61 P00/INTP0 EXIRIN I External IR input pin.
62 P01/INTP1 POFF I Power failure detection terminal. L=Power failure
63 P02/INTP2/NMI MP3INTB I The interruption signal input terminal from MP3 decode.
64 P03/INTP3 SCORI I The sub code detection terminal of the signal processing IC.
65 P04/INTP4 SUBREQ I The communication ready signal input terminal from sub microprocessor.
66 P05/INTP5 MP3FSYNC I FSYNC signal input pin from MP3 decoder.
67 Vss0 GND I GND
68 Vdd1 +5V I Power supply pin.
69 X2 CLOCK O Clock signal output pin. (12.5MHz OSCO)
70 X1 CLOCK I Clock signal input pin. (12.5MHz OSC)
71 TEST/Vpp GND I Flash ROM write-in voltage pin.
72 XT2 O Not used. Open pin.
73 XT1 GND I Not used. To connect GND pin.
74 Vdd0 +5V I Power supply pin.
75 AVdd +5V I Power supply pin for A/D port.
76 P10/ANI0 MODEL I Model name select pin. 0V=DX-C390/+5V=Other model
77 P11/ANI1 TIMING I The brake timing setting terminal of roulette. (0V=0msec +5V=64msec)
78 P12/ANI2 GND I Not used. To connect GND pin.
79 P13/ANI3 GND I Not used. To connect GND pin.
80 P14/ANI4 GND I Not used. To connect GND pin.
Q701 : uPD784225GC
No. PIN NAME SIGNAL NAME I/O DESCRIPTION
GN
D
GN
D
GN
D
TI
M
ING
MO
D
E
L
+5V +5V GN
D
GN
D
CL
O
C
K
CL
O
C
K
+5V GN
D
MP
3
F
S
Y
N
C
SU
BR
EQ
SCO
R
I
~M
P3IN
T
B
~PO
F
F
~EXIR
IN
<-- <-- <-- <-- <-- <-- <-- <-- --> <-- <-- --> <-- <-- <-- <-- <-- <-- <-- <--
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
P
14/ANI
4
P
13/ANI
3
P
12/ANI
2
P
11/ANI
1
P
10/ANI
0
AVd
d
V
dd0
XT
1
XT
2
TES
T
/V
pp
X1 X2
V
dd1
V
ss0
P
05/I
N
T
P
5
P
04/I
N
T
P
4
P
03/I
N
T
P
3
P02/I
N
T
P
2/N
MI
P
01/I
N
T
P
1
P
00/I
N
T
P
0
GND -->
1
P15/ANI5 ~RESET
60
--- ~RESET
GND -->
2
P16/ANI6 P127/RTP7
59
--> ~SYSOUT
GND -->
3
P17/ANI7 P126/RTP6
58
<-- SYSIN
GND -->
4
AVss P125/RTP5
57
-->
<--
5
P130/ANO0 P124/RTP4
56
-->
<--
6
P131/ANO1 P123/RTP3
55
--> DACEMPHASYS
+5V -->
7
AVref1 P122/RTP2
54
--> DACMUT
RXD -->
8 P70/SI2/RxD2 P121/RTP1 53
<-- EEPROMDO
TXD <--
9
P71/SO2/TxD2 P120/RTP0
52
--> EEPROMDI
GND -->
10
P72/~SCK2/ASCK2 P37/EXA
51
--> EEPROMCLK
MSI -->
11
P20/SI1/RxD1 P36/TIO1
50
--> EEPROMCS
MSO
<--
12
P21/SO1/TxD1 P35/TIO0
49
--> ~DITPD
~ MSCK
<--
13
P22/~SCK1/ASCK1 P34/TI2
48
--> DITCE
DOUT
<--
14
P23/PCL P33/TI1
47
--> DITCL
SUBRST
<--
15
P24/BUZ P32/TO2
46
--> DITDO
SUBSO
-->
16
P25/SI0/SDA0 P31/TO1
45
<-- DITDI
SUBSI
<--
17
P26/SO0 P30/TO0
44
-->
SUBCL
<--
18
P27/~SCK0/SCL0 P67/ASTB
43
-->
CDSUBQ <--
19
P40/AD0 P66/~WAIT
42
--> ~LOADINGR
~CDCOM <--
20
P41/AD1 P65/~WR
41
--> ~LOADINGL
P
42/AD2
P
43/AD3
P
44/AD4
P
45/AD5
P
46/AD6
P
47/AD7
P
50/A8
P
51/A9
P
52/A10
P
53/A11
P
54/A12
P
55/A13
V
ss1
P
56/A14
P
57/A15
P
60/A16
P
61/A17
P
62/A18
P
63/A19
P
64/~
RD
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
--> --> <-- --> --> <-- --> --> --> --> <-- <-- <-- --> --> --> <-- <-- <-- <--
~M
P3CO
M
~M
P3CE SEN
SI
~CDXL
T
SCLKO FO
KI LD
ON ~CDR
E
SET
CDPO
WE
R
CDM
U
T
STO
P
PO
S
S
EN
S
DISC_
SE
N
S
GN
D ~R
OT
_R ~R
OT
_L ~R
OT
H
I
LOA
D
IN
G
_SW
1
LOA
D
IN
G
_SW
2
LOA
D
IN
G
_SW
3
~CU
RRE
NT
uPD784225GC
PIN LAYOUT