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Pin
Pin Name
I/O
No.
24 RELAY SPK A
O
25 RELAY SURR
O
26 RELAY CNT
O
27 RELAY H/P
O
28 FUNC UP
29 H/P DETECT
30 FUNC DOWN
31 NC
32 CNT MUTE
O
33 FRONT MUTE
O
34 SURR MUTE
O
35 NC
36 NC
37 NC
38 FL DRV RESET
O
39 RELAY POWER
O
40 RESET
41 GND
42 XTAL
43 EXTAL
44 FL DRV CE
O
45 FL DRV DATA
O
46 FL DRV/2090 CLK
O
47 2090 DATA
O
48 VOL DOWN
49 VOL UP
50 SEL DOWN
51 SEL UP
52 AV
SS
53 V
REF
54 AV
DD
55 NC
56 GND
57 STEP OPT
58 SET OPT
59 GND
60 KEY IN3
61 KEY IN2
62 KEY IN1
63 9K/10K STEP
64 PROTECT
65 89057 INT
66 M32 SCLK
O
67 1837 CE
O
68 M32 RESET
O
69 NC
70 STBY LED
O
71 NC
72 NC
73 NC
74 NC
75 SURR BACK MUTE
O
76 KIC9459 CE
O
FRONT RELAY
SURROUND RELAY
CENTER RELAY
H/P RELAY
I
ENCODER INPUT(FUNCTION)
I
H/P DETECT
I
ENCODER INPUT(FUNCTION)
CENTER MUTE
FRONT MUTE
SURROUND MUTE
LC75721NE RESET
POWER RELAY
I
RESET
I
LC75721NE CE
LC75721NE DATA
CONTROL CLOCK
BU2090F DATA
I
ENCODER INPUT(VOLUME)
I
ENCODER INPUT(VOLUME)
I
ENCODER INPUT(SELECT)
I
ENCODER INPUT(SELECT)
I
AREA SELECT
I
MODEL SELECT
I
KEY INPUT
I
KEY INPUT
I
KEY INPUT
I
TUNER STEP SELECT
I
PROTECTION
I
LC89057 INTERUPT
MELODY32 CLOCK
CODEC CE
MELODY32 RESET
STANDBY LED
SURROUND BACK MUTE
KIC9459 CONTROL
Function
AVR-1803/883
11
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