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Pin
Symbol
Pin Name
I/O
Nor-
mal
STBY
Opti-
cal
STBY
Net-
work
STBY
Description
63 P82/TXD10/RMII0_TXD1/MMC_
D4-A
P82/TXD10
O
O/L
O/L
O/L
NJU72322 Volume Control
64 P81/RXD10/ET0_ETXD0
P81/RXD10
I
I
I
I
DIR2 (LC89091JA) General Purpose Signal Input
65 P80/SCK10/ET0_TX_EN
P80/SCK10
I
I
I
I
DIR2 (LC89091JA) De-Emphasis Flag Input
66 PC4/SS8#/SSLA0-A
PC4
I
I
I
I
DIR2 (LC89091JA) S/PDIF Unlock Flag Input
67 PC3/TXD5/ET0_TX_ER/MMC_D0-A PC3/TXD5
O
O/L
O/L
O
PLD Control Data Clock Output
68 P77/TXD11/TRDATA7
P77/TXD11
I
I
I
I
PLD Control Data Input
69 P76/RXD11/TRDATA6
P76/RXD11
O
O/L
O/L
O
PLD Control Data Output
70 PC2/RXD5/SSLA3-A/ET0_RX_DV
PC2/RXD5
O
O/L
O/L
O
PLD Control Data Chip Select
71 P75/TRSYNC1
P75
O
O/L
O/H
O/H
Orange LED Control
72 P74/TRDATA5/A20
P74
I/O
I/O (I)
I/O
I/O
I/O Expander I2C SDA
73 PC1/SSLA2-A
PC1
I/O
I/O (I)
I/O
I/O
I/O Expander I2C SCL
74 VCC
VCC
Power Supply Pin
75 PC0/SSLA1-A
PC0
I
I
I
I
I/O Expander INT input
76 VSS
VSS
Ground pin
77 P73/TRDATA4
P73
O
O/L
O/L
O
OLED Power Control Pin
78 PB7/TXD9/ET0_CRS
PB7/TXD9
O
O/L
O/L
I
Data bus for OLED
79 PB6/RXD9/ET0_ETXD1
PB6/RXD9
O
O/L
O/L
I
Data bus for OLED
80 PB5/POE4#
PB5
O
O/L
O/L
I
Data bus for OLED
81 PB4/ET0_TX_EN
PB4
O
O/L
O/L
I
Data bus for OLED
82 PB3/POE11#
PB3
O
O/L
O/L
I
Data bus for OLED
83 PB2/ET0_RX_CLK
PB2
O
O/L
O/L
I
Data bus for OLED
84 PB1/TXD4/TXD6/ET0_ERXD0
PB1/TXD4/
TXD6
O
O/L
O/L
I
Data bus for OLED
85 P72/A19
P72
O
O/L
O/L
O/L
If logic level "L", Enable communication with OLED.
86 P71/A18
P71
O
O/L
O/L
O/L
OLED RESET Pin. Logic Level "L"=RESET
87 PB0/RXD4/RXD6/IRQ12/ET0_
ERXD1
PB0/RXD4/
RXD6/IRQ12
O
O/L
O/L
I
Data bus for OLED
88 PA7/MISOAB
PA7
O
O/L
O/L
O/L
Data/Commando Switch. "H"=Data, "L"=Command
89 PA6/(LCD_DATA2-B)*1
PA6
O
O/L
O/L
O/L
EL Read
90 PA5/MTIOC6B
PA5
O
O/L
O/L
O/L
EL Write
91 VCC
VCC
Power Supply Pin
92 PA4/TXD5/IRQ5-DS/SSLA0-B
PA4/TXD5/
IRQ5-DS
O
O/L
O/L
O/L
RC-5 Output
93 VSS
VSS
Ground Pin
94 PA3/RXD5/IRQ6-DS/ET0_MDIO
PA3/RXD5/
IRQ6-DS
O
O/L
O/L
O/L
DIR (PCM9211) Control Pin
95 PA2/RXD5/SSLA3-B
PA2/RXD5
I
I
I
I
DIR (PCM9211) Control Pin
96 PA1/MTIOC0B/IRQ11/SSLA2-B
PA1/MTIOC0B/
IRQ11
O
O/L
O/L
O/L
DIR (PCM9211) Control Pin
97 PA0/MTIOC6D
PA0
O
O/L
O/L
O/L
DIR (PCM9211) Control Pin
98 P67/IRQ15/MTIOC7C
P67/IRQ15
I
I
I
I
DIR (PCM9211) Control Pin
99 P66/MTIOC7D
P66
O
O/L
O/L
O/L
DIR (PCM9211) Control Pin
100 P65
P65
I
I
I
I
DIR (PCM9211) Control Pin
101 PE7/IRQ7/AN5/MTIOC6A/TOC1/
MISOB-B
PE7/IRQ7/AN5
I
I
I
I
OPT1 Signal Detect
102 PE6/IRQ6/AN4/TIC1/MOSIB-B
PE6/IRQ6/AN4
I
I
I
I
OPT2 Signal Detect
103 VCC
VCC
Power Supply Pin
104 P70
P70
O
O/L
O/L
O/L
Display OFF-mode Indicator LED Control
105 VSS
VSS
Ground Pin
106 PE5/IRQ5/AN3/ET0_RX_CLK
PE5/IRQ5/AN3
I/O
I
I
I
I2C Data ( AK4490[DAC1], AK4458VN[DAC2],
LC89091(DIR2))
107 PE4/AN2/ET0_ERXD2
PE4/AN2
I/O
I
I
I
I2C Clock ( AK4490[DAC1], AK4458VN[DAC2],
LC89091(DIR2))
108 PE3/TOC3
PE3
O
O/L
O/L
O/H
Ethernet(HEOS) control pin for Standby(High: Normal,
Low: Deep Standby)
109 PE2/RXD12/IRQ7-DS/AN0/TIC3
PE2/RXD12/
IRQ7-DS/AN0
I
I
I
I
Status pin for UART communication with HEOS(L: not-
available, H: available)
110 PE1/TXD12/MTIOC3B
PE1/TXD12
O
O/L
O/L
O/L
AK4490 Reset
Pin
Symbol
Pin Name
I/O
Nor-
mal
STBY
Opti-
cal
STBY
Net-
work
STBY
Description
111 PE0/SSLB2-B
PE0
O
O/L
O/L
O/H
"NET3.3V" Power Supply Control
112 P64/(D3[A3/D3])*1
P64
O
O/L
O/L
O/L
Recorder output mute (Relay on/off =H/L)
113 P63/(D2[A2/D2])*1
P63
O
O/L
O/L
O/L
Subwoofer output mute (Mute on/off =H/L)
114 P62/(D1[A1/D1])*1
P62
O
O/L
O/L
O/L
CD input selection relay (CD/other =H/L)
115 P61/(D0[A0/D0])*1
P61
O
O/L
O/L
O/L
Phono input selection relay (Phono/other =H/L)
116 VSS
VSS
Ground Pin
117 P60
P60
I
I
I
I
Signal presence detection (Yes/No =H/L)
118 VCC
VCC
Power Supply Pin
119 PD7/IRQ7/AN7/MMC_D1-B
PD7/IRQ7/AN7
I
I
I
I
Main transformer power failure detection (No error /
Error = H/L) Interrupt
120 PD6/IRQ6/AN6/MTIOC8A/POE4#
PD6/IRQ6/AN6
O
O/L
O/L
O/L
Source Direct On/Off LED (On/off =H/L)
121 PD5/IRQ5/AN013/MTIOC8C/
POE10#
PD5/IRQ5/
AN013
I
I
I
I
Temperature detection / ASO detection / DC detection
(No error / Error = H/L) Interrupt
122 PD4/IRQ4/AN012/MTIOC8B/
POE11#
PD4/IRQ4/
AN012
I
I
I
I
Power failure detection (No error / Error = H/L) Interrupt
123 PD3/IRQ3/AN011/MTIOC8D
PD3/IRQ3/
AN011
O
O/L
O/L
O/L
Source Direct On/Off Relay (On/off =H/L)
124 PD2/IRQ2/AN010/TIC2
PD2/IRQ2/
AN010
I
I
I
I
Volume Rotary Encoder input interrupt
125 PD1/IRQ1/AN009/AN109
PD1/IRQ1/
AN009
I
I
I
I
Volume Rotary Encoder input interrupt
126 PD0/TIOCA7/IRQ0/AN008/POE4#/I PD0/TIOCA7/
IRQ0/AN008
I
I
I
I
Function switching change detection interrupt
127 P93/AN017/POE0#
P93/AN017
O
O/L
O/L
O/L
Power amp input mute (Mute on/off =L/H)
128 P92/RXD7/AN016/POE4#/
P92/RXD7/
AN016
O
O/L
O/L
O/L
Speaker output mute (Relay on/off =H/L)
129 P91/AN115/
P91/AN015
O
O/L
O/L
O/L
Open
130 VSS
VSS
Ground Pin
131 P90/TXD7/AN114
P90/TXD7/
AN014
I
I
I
I
Function SW A/D input
132 VCC
VCC
Power Supply Pin
133 P47/IRQ15-DS/AN007
P47/IRQ15-DS/
AN007
O
O/L
O/L
O/H
RED LED Control
134 P46/IRQ14-DS/AN006
P46/IRQ14-DS/
AN006
I
I
I
I
Coax Signal Detect
135 P45/IRQ13-DS/AN005
P45/IRQ13-DS/
AN005
I
I
I
I
H/P Plug Insert Detection
136 P44/IRQ12-DS/AN004
P44/IRQ12-DS/
AN004
I
I
I
I
Region Discrimination Input
137 P43/IRQ11-DS/AN003
P43/IRQ11-DS/
AN003
I
I
I
I
Key3
138 P42/IRQ10-DS/AN002
P42/IRQ10-DS/
AN002
I
I
I
I
Key Control Signal Input Pin (When standby mode, set
to interrupt)
139 P41/IRQ9-DS/AN001
P41/IRQ9-DS/
AN001
I
I
I
I
Key Control Signal Input Pin (When standby mode, set
to interrupt)
140 VREFL0
VREFL0
I
I
I
I
Ground Pin
141 P40/IRQ8-DS/AN000
P40/IRQ8-DS/
AN000
O
O/L
O/L
O/L
Headphone output mute (Relay on/off =H/L)
142 VREFH0
VREFH0
Power Supply Pin
143 AVCC0
AVCC0
Power Supply Pin
144 P07/IRQ15
P07/IRQ15
O
O/L
O/L
O/L
OPEN
Before Servicing
This Unit
Electrical
Mechanical
Repair Information
Updating
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