Onkyo TX-8522, Service Manual

Page: 36 / 53

TX-8522
MICROPROCESSOR-CONNECTION DIAGRAM
A
1
2
3
4
5
B C D E F G H
AVcc Vref KEY0 AVss KEY1 KEY2 KEY3 ~KEYINT0 ~KEYINT1 ~KEYINT2 ~KEYINT3 ~FLDR
S
T
~FLDCS FLDCLK FLDS
DO
~LEDSTB
Y
LE
DPURE
100
99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
100:P9
7
/~A
DTRG
/S
IN4
AVcc
Vref
P1
0
0
/A
N0
AVS
S
P1
0
1
/A
N1
P1
0
2
/A
N2
P1
0
3
/A
N3
P
104/AN
4
/~
KI
0
P
105/AN
5
/~
KI
1
P
106/AN
6
/~
KI
2
P
107/AN
7
/~
KI
3
P
00/AN
00/D0
P
01/AN
01/D1
P
02/AN
02/D2
P
03/AN
03/D3
P
04/AN
04/D4
P
05/AN
05/D5
P
06/AN
06/D6
P
07/AN
07/D7
VSWA
1
P96/ANEX1/SOUT P10/D8
80
VSWB
2 P95/ANEX0/CLK4 P11/D9 79
3 P94/DA1/TB4IN P12/D10 78
4
P93/DA0/TB3IN
P13/D11 77
~SD
5
P92/TB2IN/SOUT3
P14/D12 76
~STEREO
6
P91/TB1IN/SIN3 P15/D13/~INT3
75
~REMIN
7 P90/TB0IN/CLK3 P16/D14/~INT4 74
~IRIN
BYTE
8 BYTE P17/D15/~INT5 73
SYSIN
CNVss
9
CNVSS
P20/AN20/A0(/D0/-) 72
~SYSOUT
RDSDATA
10
P87/XCIN
P21/AN21/A1(/D1/D0) 71
BAND
11
P86/XCOUT P22/AN22/A2(/D2/D1)
70
INIT1
~RESET
12 ~RESET P23/AN23/A3(/D3/D2) 69
INIT2
Xout
13 XOUT P24/AN24/A4(/D4/D3) 68
INIT3
Vss
14
VSS
67
THERMAL
15
XIN P26/AN26/A6(/D6/D5)
66
VOLH
Vcc1
16
VCC1
P27/AN27/A7(/D7/D6)
65
PROTECT
17 P85/~NMI VSS 64
Vss
POFF
18 P84/~INT2 P30/A8(/-/D7) 63
SEC1H
19
P83/~INT1
VCC2 62
Vcc2
~XMREQERR
20
P82/~INT0
P31/A09 61
XMCOMSEL
21
P81/TA4IN/~U P32/A10
60
~XMDACRST
22 P80/TA4OUT/U P33/A11 59
SELCLK
23 P77/TA3IN P34/A12 58
SELDAT
24
P76/TA3OUT
P35/A13 57
APOWER
SELSTB
25
P75/TA2IN/~W
P36/A14 56
26
P74/TA2OUT/W P37/A15
55
TUXMSELA
27 P73/~CTS2/~RTS2/TA1IN/~V P40/A16 54
VOLOUT2
TUXMSELB
28 P72/CLK2/TA1OUT/V P41/A17 53
VOLOUT1
29
P71/RXD2/SCL2/TA0IN/TB5IN
P42/A18 52
DIRECT
30
P70/TXD2/SDA2/TA0OUT
P43/A19 51
SPRLB
P
6
7/TXD1/SDA1
P
6
6/RXD1/SCL1
P
65/C
L
K1
P
6
3/TXD0/SDA0
P
6
2/RXD0/SCL0
P
61/C
L
K0
P5
6
/A
L
E
P5
5
/~HO
L
D
P5
4
/~HL
D
A
P5
3
/B
C
L
K
P5
2
/~R
D
P5
1
/~W
R
H
/~
B
H
E
P5
0
/~W
R
L
/~
W
R
P4
7
/~CS3
P4
6
/~CS2
P4
5
/~CS1
P4
4
/~CS0
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
FT
X
D
FRX
D
FCLK FBUS
Y
XMSR
TXD
X
M
S
RRX
D
~XMR
ST
PLLS
C
L
PLLS
DA
AMUT SP
R
L
A
M30624FHPFP
Q251
VIDEO SELECTOR
SWITCH LA7956
Q302
SOURCE SELECTOR
SWITCH TC9273
OPERATION
KEY
Q851
FL TUBE
DRIVER
M66005
Segment
Digit
Q852
FL TUBE
STANDBY IND.
D853
D854
PURE
AUDIO
Q854
IND.
SW
U851
REMOTE
CONTROL
SENSOR
Q602
RESET
X601
6MHz
Xin
INITIALIZING
POWER
AMP.
LEVEL DET.
DC/CURRENT
DETECTOR
Q855
THERMAL
DET.
Q603
BUFFER
IR IN
IR OUR
RI IN/OUT
Q712 XM/FM,AM SELECTOR
SWITCH
POWER FAILURE DETECT
Q703,Q705
GATE
CIRCUIT
BIAS SELECTOR
RELAY <D>
M
Q481 VOLUME
MOTOR DRIVER
+5V
Q912
POWER SW
RELAY
Q591
SP A
RELAY
Q592
SP B
RELAY
Q452
DIRECT
RELAY SW
FLASH WRITER
Q601
XM RADIO
BOARD
TUNER
PACK
TO AUDIO
MUTE SW