Onkyo TX-8522 Service Manual page 38

MICROPROCESSOR-TERMINAL DESCRIPTION 2
No. Terminal
61 P31/A09
62 VCC2
63 P30/A8(/-/D7)
64 VSS
65 P27/AN27/A7(/D7/D6)
66 P26/AN26/A6(/D6/D5)
67 P25/AN25/A5(/D5/D4)
68 P24/AN24/A4(/D4/D3)
69 P23/AN23/A3(/D3/D2)
70 P22/AN22/A2(/D2/D1)
71 P21/AN21/A1(/D1/D0)
72 P20/AN20/A0(/D0/-)
73 P17/D15/~INT5
74 P16/D14/~INT4
75 P15/D13/~INT3
76 P14/D12
77 P13/D11
78 P12/D10
79 P11/D9
80 P10/D8
81 P07/AN07/D7
82 P06/AN06/D6
83 P05/AN05/D5
84 P04/AN04/D4
85 P03/AN03/D3
86 P02/AN02/D2
87 P01/AN01/D1
88 P00/AN00/D0
89 P107/AN7/~KI3
90 P106/AN6/~KI2
91 P105/AN5/~KI1
92 P104/AN4/~KI0
93 P103/AN3
94 P102/AN2
95 P101/AN1
96 AVSS
97 P100/AN0
98 Vref
99 AVcc
100 P97/~ADTRG/SIN4
Signal Name I/O Act. Description
I L Not used.
Vcc2 Power supply pin.
SEC1H O H Bias selector control pin. (North American model only)
Vss Ground pin.
PROTECT I H Abnormal voltage and current detection input pin
VOLH I A/D Output signal level detection pin
THERMAL I A/D Thermal detection input pin.
INIT3 I A/D Initializing input pin 3
INIT2 I A/D Initializing input pin 2
INIT1 I A/D Initializing input pin 1
BAND I A/D Band setting input pin
~SYSOUT O L System code output pin
SYSIN I H System code input pin
~IRIN I L IR signal input pin
~REMIN I L Signal input pin from remote controller.
~STEREO I L FM stereo detection input pin
~SD I L Broadcast detection input pin
I L Not used.
I L Not used.
I L Not used.
O L Not used.
LEDZONE2 O H Not used.
LEDPURE O H Pure Audio indicator control output pin
~LEDSTBY O L STANDBY indicator control output pin
FLDSDO O H FL tube driver data output pin
FLDCLK O CLK FL tube driver clock output pin
~FLDCS O L FL tube driver chip select output pin
~FLDRST O L Reset signal output pin for FL tube driver
~KEYINT3 I L Operation key interrupter input pin 3
~KEYINT2 I L Operation key interrupter input pin 2
~KEYINT1 I L Operation key interrupter input pin 1
~KEYINT0 I L Operation key interrupter input pin 0
KEY3 I L Operation key input pin 3
KEY2 I A/D Operation key input pin 2
KEY1 I A/D Operation key input pin 1
AVss Ground pin.
KEY0 I A/D Operation key input pin 0
Vref Reference voltage pin
AVcc Power supply pin.
I L Not used.
TX-8522