Yamaha R-N602 Service Manual page 51
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Also See for R-N602:
- Owner's manual (130 pages) ,
- Firmware update procedure (2 pages) ,
- Owner's manual (82 pages)
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I/O
Pin
Function Name
Port Name
No.
(P.C.B.)
57
P13_0
SPRY_A
O
O
O
O
Speaker relay control (SP A) / High: Relay ON
58
P5_3
(no use)
O
O
O
O
59
P5_2
(no use)
O
O
O
O
60
P5_1
MT_N_SA
O
O
O
O
Mute control
61
P5_0
E8A_N_CE
I+
I+
I+
I+
62
P12_7
NCPU_MODE
I-
I-
I-
I-
+3.3V: Normal operation / 0V: MAC address writing permitted
63
P12_6
USB_VBUS_PON
O
O
O
O
64
P12_5
PRY
O
O
O
O
Power relay control / High: ON
65
TXD7
NCPU_RXD
SO
O
O
O
Command transmitted to NCPU
66
RXD7
NCPU_TXD
SI
I+
I+
I+
Command from NCPU received
67
P4_5
(no use)
O
O
O
O
68
P4_4
(no use)
O
O
O
O
Remote control code output (spare) / Disused because of no REMOTE IN/OUT
69
P4_3
IN_RD
I+
I+
I+
I+
Input selector encoder B
70
P4_2
IN_RC
I+
I+
I+
I+
Input selector encoder A
71
P4_1
N_FCT
I
I
I
I
FCT detection / High: Product mode, Low: FCT mode
72
P4_0
(no use)
O
O
O
O
Spare DAC cancelled because use of DSD determined
73
P3_7
(no use)
O
O
O
O
74
P3_6
VOL_RB
I+
I+
I+
I+
Volume rotary encoder B
75
P3_5
VOL_RA
I+
I+
I+
I+
Volume rotary encoder A
76
P3_4
FLD_N_CS
O
O
O
O
FL driver chip select
77
P3_3
FLD_N_RST
O
O
O
O
FL driver reset
78
P3_2
(no use)
O
O
O
O
79
P3_1
STBY_LED
O
O
O
O
High: Indicator lit, Low: Lit dimly
80
P12_4
NCPU_PHOLD
O
O
O
O
High: PMIC enabled / Network module PMIC control
81
P12_3
DIR_PON
O
O
O
O
High: Power supply ON
82
P12_2
+3.3S_PON
O
O
O
O
High: Power supply ON
83
P12_1
(no use)
O
O
O
O
84
P12_0
(no use)
O
O
O
O
85
VCC2
VCC2
MCU MCU MCU MCU Microprocessor power supply
86
P3_0
EEP_N_CS
O
O
O
O
EEPROM chip select
87
VSS
VSS
MCU MCU MCU MCU Microprocessor ground
88
P2_7
(no use)
O
O
O
O
89
P2_6
(no use)
O
O
O
O
Setting changed to output after R225 cancellation
90
N_INT7
REM_IN
IRQ
IRQ
IRQ
I
Remote control pulse input
91
N_INT6
NCPU_MUTE1
O
O
O
O
NCPU mute command (disused)
As ES1 is connected to NW-01 with R372, the resistance should be cancelled when
setting to output
92
P2_3
(no use)
O
O
O
O
93
P2_2
(no use)
O
O
O
O
94
P2_1
NCPU_N_RST
O
O
O
O
Disused this time
As ES1 is connected to NW-01 with J9504, the jumper should be cancelled when
setting to output
95
P2_0
NCPU_VBUSDRV
I-
I-
I-
I-
State output from USB device / High: Enable, Low: Disable
96
P1_7
NET_RF
I+
I+
I+
I+
Net selector encoder B
97
N_INT4
NCPU_N_INT
O
O
O
O
NET microprocessor interrupt command (disused)
As ES1 is connected to NW-01 with R370, the resistance should be cancelled when
setting to output
98
N_INT3
NCPU_MUTE0
I
I
I
I
NCPU mute demand
99
P1_4
NET_RE
I+
I+
I+
I+
Net selector encoder A
100 TXD6
NCPU_SPI_MOSI
SO
O
O
O
NET SPI data output
101
RXD6
NCPU_SPI_MISO
SI
O
O
O
NET SPI data input
102 CLK6
NCPU_SPI_SCK
SO
O
O
O
NET SPI clock output
103 P1_0
NCPU_SPI_N_CS
O
O
O
O
NET SPI chip select
104 P0_7
DAC_N_CS
O
O
O
O
DAC chip select
105 P0_6
NCPU_ADT_MUTE
O
O
O
O
NET audio mute demand
106 AN0_5
PS3_PRT
AD
PS protection detection 3
Detail of Function
I/O
Pin
Function Name
Port Name
No.
(P.C.B.)
107 AN0_4
PS2_PRT
AD
108 AN0_3
(no use)
AD
109 AN0_2
USB_VBUS_PRT
AD
I
I
I
110
AN0_1
THM3_PRT
AD
I
I
I
111
AN0_0
DEST
AD
I
I
I
112
P11_7
(no use)
O
O
O
O
113
P11_6
DIR_SDO
I
I
O
I
114
P11_5
DIR_WCK
I
I
O
I
115
P11_4
(no use)
O
O
O
O
116
P11_3
(no use)
O
O
O
O
117
P11_2
(no use)
O
O
O
O
118
P11_1
(no use)
O
O
O
O
119
P11_0
(no use)
O
O
O
O
120 AN7
DC_PRT
AD
I
I
I
121 AN6
AMP_OLV
AD
I
I
I
122 AN5
THM1_PRT
AD
I
I
I
123 AN4
(no use)
O
O
O
O
124 AN3
KEY2
AD
I
I
I
125 AN2
KEY1
AD
I
I
I
126 AN1
PS1_PRT
AD
I
I
I
127 AVSS
AVSS
MCU MCU MCU MCU Microprocessor ground
128 P10_0
(no use)
O
O
O
O
FULL ON
: During normal operation
POWER OFF
: During transition from normal operation to standby state
MCU SLEEP
: Standby state
AC OFF
: During transition from normal operation to AC off
Key detection for A/D port
Key input (A/D) pull-up resistance: 10 k-ohms
0 Ω
+1 kΩ
+1 kΩ
Detected voltage value
0 – 0.14 V
0.16 – 0.41 V
0.43 – 0.7 V
at 125 pin
A/D value
000 – 011
012 – 032
033 – 054
(3.3 V=255)
SELECT
RETURN /
KEY1
TUNING
PUSH – ENTER
CONNECT
0 Ω
+1 kΩ
+1 kΩ
Detected voltage value
0 – 0.14 V
0.16 – 0.41 V
0.43 – 0.7 V
at 124 pin
A/D value
000 – 011
012 – 032
033 – 054
(3.3 V=255)
KEY2
MEMORY
MODE
DISPLAY
Destination detection for A/D port
Pull-up resistance: 10 k-ohms
R5418
0 Ω
1.2 kΩ
2.7 kΩ
on OPERATION (2) P.C.B.
Detected voltage value
0 – 0.16 V
0.17 – 0.51 V
0.52 – 0.85 V
at 111 pin
A/D value
000 – 012
013 – 039
040 – 066
(3.3 V=255)
DEST
J
U
Detail of Function
PS protection detection 2
AD spare
USB iPad power supply feedback
Temperature detection 3
Near diode bridge heat sinking plate (NTC thermister) of MAIN P.C.B.
Model distinction
Also used for the voice test in the self-diagnostic function mode
Also used for the voice test in the self-diagnostic function mode
Power amplifier DC detection
Power amplifier output level detection
Temperature detection 1
KEY AD value uptake 2
KEY AD value uptake 1
PS protection detection 1 (+12A)
AD spare
+1.5 kΩ
+1.8 kΩ
+2.2 kΩ
+3.3 kΩ
+4.7 kΩ
0.71 – 1 V
1.01 – 1.27 V
1.28 – 1.55 V
1.57 – 1.85 V
1.86 – 2.14 V
055 – 077
078 – 098
099 – 120
121 – 143
144 – 165
TUNING
PRESET
PRESET
BAND
CLEAR
+1.5 kΩ
+1.8 kΩ
+2.2 kΩ
0.71 – 1 V
1.01 – 1.27 V
1.28 – 1.55 V
055 – 077
078 – 098
099 – 120
DIMMER
SPEAKERS A
SPEAKERS B
4.7 kΩ
6.8 kΩ
10 kΩ
15 kΩ
47 kΩ
0.86 – 1.18 V
1.19 – 1.48 V
1.49 – 1.80 V
1.81 – 2.20 V
2.58 – 2.87 V
067 – 091
092 – 114
115 – 139
140 – 170
199 – 222
R
K
A
B, G
R-N602
100 kΩ
2.88 – 3.16 V
223 – 244
L
51
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