SCH06_DIGITAL UCOM
All Ref.No. has been described in the parts list are four digits.
But there are less than four digits of printed Ref.No. on the PCB, and they have become four digits after the header by adding "0" in the parts list.
GND LINE
POWER- LINE
POWER+ LINE
STBY POWERDSD SIGNALRch SIGNAL Lch SIGNAL SPDIF PCM SIGNAL
U102
M3062LFGPGP
X101
16.0M
R147
220
C132
0.1
R140
OPEN
U103
BD4730
C133
10/16
C135
1000P
R150
100K
C137
0.1
+3.3V_NSW
DGND
100K
R101
10K
R102
R132
56
R131
56
+3.3V_NSW
KTC3875S
Q107
DGND
+12V_RL
+3.3V_NSW
0
R108
DTC114TK
Q103
100
R107
REMOTE_REAR
DGND
DTC114TK
Q106
R121
10K
R122
10K
U104
BR93L66F-W
1000P
C156
C157
0.01Z
R173
47K
R179
10K
DGND
R176
47K
R175
47K
+3.3V_NSW
10P-PH
N1061
R183
10K
DGND
100KR182
R181
10K
R180
OPEN
R177
OPEN
R178
10K
100KR174
100KR172
R171
OPEN
FS0
FS1
R145
0
R144
0
AL32_TEST3
AL32_TEST4
AL32_TEST5
AL32_SIG_SEL
AL32_EMPHA
FPGA_VER_CONT
R142
0
R141
0
R134
0
R133
0
R119
0
R162
0
AD32_RESET
FPGA_RESERVE4
USBB_MODE
FPGA_RESERVE2
FPGA_RESERVE3
PCMorDSD
SPDIF_MODE
R161
0
R160
0
R138
0
R136
0
R123
0
R124
0
R125
0
C129
0.1
R126
0
R127
0
R128
0
R129
0
R130
0
R159
0
USBB_RST
R163
0
R164
0
DIR1_RST
DIR1_CLK
DIR1_CE
R146
56
R149
56
R151
56
DAC_CS
DAC_MOSI
DAC_RST
DAC_CLK
R120
0
A_MUTE
MODE_PCM/DSD
R154
10K
R152
0
R135
56
R139
56
+3.3V_NSW
DGND
0.01Z
C128
1000P
C138
1000P
C140
C139
0.1
R165
56
R166
56
47K
R118
1K
R117
RL_GND
+5VD
RL_GND
+5VD
DGND
+12V_RL
+5VD
47K
R116
18K
R115
47K
R110
DGND
+3.3V_NSW
DGND
47K
R195
KRC102S
Q135
R196
10K
+3.3V_NSW
+3.3V_NSW
1000P
C153
0.1
C148
0.1
C151
1000P
C150
0.01Z
C149
0.01Z
C142
0.1
C145
0.01Z
C152
0.01Z
C146
1000P
C147
1000P
C144
0.1
C141
DSD_MODE_DSD/PCM
USBB_INT_REQ
USBB_MUTE
USBB_DETECT
10K
R187
DGND
100K
R188
DIR1_CFLUG
DIR1_CIDO
DIR1_CODI
I2C_SCL
I2C_SDA
KRA102S
Q108
+3.3V_NSW
KTC3875S
Q113
10K
R156
+3.3V_NSW
C143
0.01Z
KRC102S
Q110
KTA1504S
Q109
+3.3V_NSW
DTC114TK
Q111
KRC102S
Q112
KRC102S
Q114
KTA1504S
Q117
+3.3V_NSW
10K
R167
KTA1504S
Q118
+3.3V_NSW
10K
R168
KRC102S
Q115
47K
R137
0.22
C134
22K
R143
100K
R148
C159
0.01Z
+3.3V_NSW
47K
R185
DGND
KTC3875S
Q125
KTC3875S
Q122
KRC102S
Q124
DGND
KTC3875S
Q123
220K
R186
C160
OPEN
C161
OPEN
+3.3V_NSW
47K
R184
DGND
C158
0.01Z
KRC102S
Q116
KRA102S
Q121
C154
0.01Z
47K
R170
DGND
+3.3V_NSW
KRC102S
Q120
DGND
+3.3V_NSW
+3.3V_NSW
+3.3VD
33_VCC_DIR
C131
100/6.3
C130
10/16
C155
OPEN
D101
KDS160
D104
KDS160
KDS160
D105
KDS160
D106
100/6.3
C125
1SR154
D103
1SR154
D102
LB1930MC
U101
DIR1_NPCM
RL_GND
KRA102S
Q139
+3.3V_NSW
C136
0.1
ANA_MODE
KRC102S
Q144
DGND
KTA1504S
Q145
22K
R158
C172
0.1
100K
R299
KRC102S
Q136
KRA102S
Q119
0.1
C173
10K
R169
C174
0.01Z
KRC102S
Q146
DGND
100K
R301
DIG_PROT
220/25
C162
KTC3875S
Q131
10K
R903
10K
R904
+5VD
0
L103
120
R114
OPEN
R113
0
R155
+12V_RL
RL_GND
KTC3875S
Q138
10K
R153
+3.3V_NSW
10K
R905
C170
0.01Z
10K
R906
DGND
RL_GND
C167
0.1
C168
0.22
KRC102S
Q140
C169
0.22
KRA102S
Q141
+3.3V_NSW
7P-PHs
N710
12P-PHs(SMD)
N1210
14P-PHs(SMD)
N1410
7P-FFCs(9610SD)
N721
KTC3875S
Q137
DGND
10K
R197
10K
R199
+5VD
KRC102S
Q134
10K
R198
RL_GND
10P-PHs(SMD)
N1020
FLD_VH_CONT
FLD_PROT
4.7K
R237
4.7K
R236
KTC3875S
Q202
RL_GND
M_B_DOWN
P_DOWN
P_ON
P_AMP_GND
OPEN
R189
0
R157
DGND
+3.3V_NSW
OPEN
R191
OPEN
R192
18K
R193
1
SO_DI
2
CD_DI
3
DAC_MOSI
4
DAC_CS
5
DAC_CLK
6
GND
7
CNVSS
8
LED_GREEN
9
EXT.PRE RELAY
10
RESET
11
XOUT
12
GND
13
XIN
14
VCC
15
NMI
16
KEY_ON (INT)
17
DIR1_CFLUG
18
P_DOWN
19
SPK-OUT
20
USB-B MODE
21
SIG_TIMER
22
LED_STBY (STB_LED)
23
USBB_DSD_PCM
24
PROT-2
25
VOLTAGE_PROTECT
26
PROT-1
27
DIR1_NPCM
28
NC
29
TXD
30
RXD
31
SCLK
32
BUSY
33
78212_DI
34
78212_CE
35
78212_CK
36
M_MUTE
37
MM/MC_RL
38
NC
39
EPM
40
E2P_CK
41
E2P_DO
42
E2P_DI
43
E2P_CS
44
CE
45
M_B_DOWN
46
DET
47
MM/MC_DET
48
ANA_MODE
49
I2C_SCL_IN
50
I2C_SDA_IN
51
FPGA_VER_CONT
52
PCM or DSD
53
DAC_RST
54
FRES
55
SPDIF MODE
56
ANA_LED
57
SO_DI_LED
58
NC
59
DIR1_RST
60
Vcc
61
NC
62
GND
63
DIR1_CIDO
64
DIR1_CK
65
DIR1_CE
66
DIR1_CODI
67
FS0
68
FS1
69
AL32_SIG_SEL
70
AL32_EMPHA
71
USBB_MUTE
72
USBB_INT_REQ_N
73
REMOTE
74
AL32_TEST3
75
AL32_TEST4
76
AL32_TEST5
77
A_MUTE
78
PCONT (P_ON)
79
MODE(PCM/DSD)
80
NC
81
DESTINATION_SEL
82
VOL_UP
83
VOL_DOWN
84
NC
85
FCEN
86
AD32 Reset
87
I2C_SDA
88
I2C_SCL
89
KEY1 (TACT)
90
SEL
91
USBB_RST
92
USB-B_DETECT
93
FPGA_RESERVE2
94
AVSS
95
FPGA_RESERVE3
96
VREF
97
AVCC
98
FPGA_RESERVE4
99
FDAT
100
FCLK
1
NC
2
SUB
3
GND
4
VOUT
5
VCC
OUTPUT
1
2
3
4
5
6
7
8
1
SCLK
2
RXD
3
TXD
4
BUSY
5
EPM
6
CE
7
CNVSS
8
RESET
9
Vcc
10
Vss
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
INPUT
BIDIRECT
BIDIRECT
1
VCC
2
NC
3
IN1
4
IN2
5
SGND
6
PGND
7
OUT2
8
NC
9
OUT1
10
NC
OUTPUT
INPUT
OUTPUT
1
A_GND1
2
POSISTER
3
SPK RELAY
4
DC PROTECT
5
ASO PROTECT
6
D_GND
7
+12V
12
S-DI_RL
11
VOL-
10
VOL+
9
LED_G
8
LED_R
7
REMOTE
6
D_GND
5
+3.3VL
4
TACT
3
ANA_LED
2
SO-DI_LED
1
+12V_RL
1
MM/MC_DET
2
+12V_RL
3
CD/LINE RELAY
4
MM/MC_RL
5
+5VD
6
SIG_DET
7
TIMER_RST
8
LC78212_CE
9
LC78212_CLK
10
LC78212_DATA
11
D-GND
12
M_MUTE
13
16V_PROT
14
AC2_RELAY (A_MODE)
1
RESET
2
VREF
3
TXD
4
RXD
5
GND_D
6
CNVSS
7
EPM
1
+5VD
2
D_GND
3
FRES
4
FDATA
5
FCLK
6
FCEN
7
+3.3VL
8
D_GND
9
INT
10
SEL_AD
INPUT
OUTPUT
OUTPUT
OUTPUT
INPUT
TACT
FRES
SEL_AD
FCEN
ANA_MODE
LED_G
LED_R
REMOTE
REMOTE
VOL-
VOL+
VOL+
VOL-
CE
CNVSS
EPM
CE
E2P_CK
E2P_DI
E2P_DO
E2P_CS
E2P_CK
E2P_DO
E2P_DI
E2P_CS
MODE_PCM/DSD
FS0
FS1
FS0
FS1
AL32_TEST3
AL32_TEST5
AL32_TEST4
FPGA_VER_CONT
AL32_EMPHA
AL32_SIG_SEL
AL32_SIG_SEL
AL32_EMPHA
AL32_TEST3
AL32_TEST4
AL32_TEST5
FPGA_VER_CONT
AD32_RESET
FPGA_RESERVE2
FPGA_RESERVE3
FPGA_RESERVE4
USBB_MODE
PCMorDSD
SPDIF_MODE
PCMorDSD
FPGA_RESERVE4
FPGA_RESERVE3
FPGA_RESERVE2
AD32_RESET
USBB_MODE
USBB_RST
USBB_INT_REQ
USBB_MUTE
I2C_SCL
I2C_SDA
DSD_MODE_DSD/PCM
USBB_MUTE
USBB_INT_REQ
I2C_SDA
I2C_SCL
I2C_SDA
I2C_SCL
USBB_DETECT
USBB_RST
DIR1_CFLUG
DIR1_CODI
DIR1_CLK
DIR1_CE
DIR1_CFLUG
DIR1_CODI
DIR1_CE
DIR1_CLK
DAC_CS
DAC_RST
DAC_RST
DAC_CLK
DAC_CS
DAC_MOSI
A_MUTE
A_MUTE
MODE_PCM/DSD
DAC_MOSI
DAC_CLK
DIR1_RST
DIR1_CIDO
78212_CK
78212_DI
78212_CE
M_MUTE
DET
PROT1
PROT2
VOLTAGE_PROT
SIG_TIMER
SPK_OUT
CD-DI
DET
DIR1_RST
DIR1_CIDO
KEY_ON
BUSY
BUSYBUSY
.SCLK
.SCLK.SCLK
DIR1_NPCM
DIR1_NPCM
CD-DI
ANA_LED
SO_DI_LED
SIG_TIMER
VOLTAGE_PROT
MM_MC_RL
KEY_ON
MM_MC_DET
MM_MC_RL
SPK_OUT
PROT1
SO_DI_LED
ANA_LED
TACT
78212_CE
78212_CK
78212_DI
MM_MC_DET
EPM
CNVSS
DET
SEL_INT
TACT
REMOTE
FCLK
FDAT
SO-DI
FRES
FDAT
FCLK
FCEN
SEL_INT
SEL_AD
SPDIF_MODE
FLD_VH_CONT
FLD_VH_CONT
SO-DI
DSD_MODE_DSD/PCM
FLD_PROT
FLD_PROT
USBB_DETECT
ANA_MODE
M_B_DOWN
M_B_DOWN
P_DOWN
P_DOWN
P_ON
P_ON
ANA_MODE
M_MUTE
MM_MC_DET
PROT2
ASO
POSISTER
LED_R
LED_G
to TACT UNIT
8U-110204-5
N1301
W0023
From sht.002
(UPDATE)
(E8a Emulator)
from sht.003
(FPGA)
from sht.004
(USB-B)
from sht.002
(DIR)
from sht.003
(FPGA)
R117
E2:
1kΩ
JP/E1C:Open
H:Signal Detect
L:No signal
Ref 101～
L:Interrupt
±16V Prot
Protection2
(±B, ±16V Protection)
Normal:3.3V
Prot. :0V
Protection1
(Thermal/DC/ASO Protection)
Normal:3.3V
Prot. :0V
Voltage Protect
Normal:3.3V
Prot. :0V
EEPROM
to FLD UNIT
8U-110205-8
N1203
W0009
ANA_LED
H:Analog Mode on
M_B_DOWN
H:Normal
L:Main Power Dwon Detect
to INPUT UNIT
8U-110205-1
N3005
W0007
from POWER AMP UNIT
8U-110xxxxx
N0912
W00xx
SO_DI_LED
H:Source Direct
L:Tone
GND
NC NC
Vcc
CS
SK DI
DO
RESET
CD-DI
H:CD
L:other
M_MUTE
H:Mute on
SPK_OUT
H:SPK/HP on
MOTOR VOLUME DRIVER
8U-310219
DIGITAL UNIT(1/4)
(MCU)
MM/MC_RL
H:MM
L:MC
H:Reset
RL_GND:
AC1 PCBでD-GNDと接続されている
MM/MC_DET
H:MM
L:MC
DC
SO-DI
H:Source Direct
L:Tone
from sht.003
(FPGA)
00MYJ0701857Y chge
A1
TO 1A
A2
TO 2A
A3
TO 3A
A4
TO 4A
A6
TO 6A
N710
TO N711
N1020
TO N1021
N1210
TO N1211
N1410
TO N1411
15
Caution in
servicing
Electrical Mechanical Repair Information Updating
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