Onkyo TX-8222 Service Manual page 12

A
SCHEMATIC DIAGRAM 3
NADG-8876
1
C716
101J
R850
10K
C717
3.3/50
13 (VX)
12
11
C718 100/16
10
(VR)
9 TUR
8
7 TUL
6
5 +9V_TU
2 4
3
2
1
C719 C728
P704A
104Z 104Z
P708
3
P707
2
RI
1
R709
100
P706
23
3
22
IRIN
21
3
2
IROUT
1
4
5
B
MICROPROCESSOR SECTION
U01
RDSSIG
RDSDAT
J701/J702:(P/A)
R722
J701
47K
R721 J702
47K
TUNED
STEREO
PLLSDA
PLLCLK
SYSIN
IRIN
IROUT
C
D703
1SS355
D702
1SS355
D713
Q701
D701
S-812C56
L701
1SS355
AUA-C3K
470M
2 3
I O
C704
DX-5R5L224
LEDZONE2
LEDPURE
LEDSTBY R679
R680
FLDSDO
R681
FLDCLK
FLDCS R682
FLDRST R683
KEYINT3 R684
R685
KEYINT2
R686
KEYINT1
R687 4.7K
KEYINT0
R688
KEY3
R690
KEY2
KEY1 R692
R694
KEY0
+
C623
4.7/50
Q602
RN1404
TX-8222
D
+5VCPU
+5VTU
+5VMPU
R674 10K
R673 10K
81
82
83
47
84
P04/AN04/D
47
85
P03/AN03/D
47
86
P02/AN02/D
47
87
P01/AN01/D
47
88
P00/AN00/D
4.7K
89
P107/AN7/K
4.7K
90
P106/AN6/K
4.7K
91
P105/AN5/K
92
P104/AN4/K
4.7K
93
P103/AN3
4.7K
94
P102/AN2
4.7K
95
P101/AN1
96
AVSS
4.7K
97
P100/AN0
98
C621
Vref
104Z
99
AVcc
100
P97/ADTRG
R609 10K
R610 10K
R613
1M