Denon S-81 Service Manual page 22

Pin
Port Name
No.
74 /SYR
75 DOUTMUTE
76 CLSW
77 OPSW
78 SEL
79 OPEN
80 CLOSE
81 VR_DSP_CLOCK
82 VR_DSP_DATA
83 DSP_MUTE
84 DSP_RESET
85 H/P_SEL
86 /DSP_PDN
87 ROM_CORRECTI
ON
88 USA/EURO/
JAPAN
89 IPOD_FUNC
90 DIMMER
91 XM/DAB/NO
92 RDS
93 KEY0
94 AVSS
95 KEY1
96 VREF
97 AVCC
98 IPOD_CONNECT
99 IPOD_ID
100 IPOD_CHARGE
I/O Initial
O L Reset output to tune RDS's IC
O L D.OUT MUTE output ( H : MUTE)
I - CD MECHA. CLOSE SW detection input
I - CD MECHA. OPEN SW detection input
O L MONO_OUT signal selection output
O L OPEN control signal output to loading driver (BA6287F)
O L CLOSE control signal output to loading driver (BA6287F)
O L Clock output to digital audio PWM processor (TAS5504)
O L Data output to digital audio PWM processor (TAS5504)
O L Mute output to digital audio PWM processor (TAS5504)
O L Reset output to digital audio PWM processor (TAS5504)
O L H/P selection signal output to digital audio PWM processor (TAS5504) (L : H/P-
ON & SP_OUT-OFF)
O L Power down control output to digital audio PWM processor (TAS5504) (L :
Power down)
I - Not used (PULL UP)
I - Product destination selection input (JAPAN : 0 to 1.1V, EURO : 1.2 to 2.2V, USA
: 2.3 to 3.3V)
I (AD) - iPod type selection inpu (CONNECT : 0 to 1.1V, READY : 1.2 to 2.2V, APPLE :
2.3 to 3.3V)
O L Not used (as DIMMER detection input, output port setting)
I (AD) - Product type selection input (NO : 0 to 1.1V, DAB : 1.2 to 2.2V, XM : 2.3 to 3.3V)
I - RDS YES/NO selection input (H : YES, L : NO)
I (AD) - Main unit's operating button detection input
- - GND for AD converter
I (AD) Main unit's operating button detection input
- - Reference voltage input for AD converter and DA converter
- - Power supply of AD converter
I - i-Pod connected/disconnected detection input (L : Connected)
O L i-Pod ID (Accessory) ON/OFF switching output (H : ON)
O L i-Pod power supply ON/OFF control output
Function
22
S-81/S-81DAB