Roland VS-840 Service Notes page 14

1 2 3 4 5 6 7 8 9
‰ ‰ ‰ ‰ MAIN BOARD ASSY (ANALOG BLOCK)
A
B
C
D
to INPUT SENS
E
CN11
IL-S-9P-S2T2
1
1
F
GUITAR IN
R108
120
Q12
R115
G
2SK880GR
JK4
10K
LGR4609-7000 C137 2
3
2
4
3 0.1 1
1
H
R77
10K
C171
I
C203 R118
100/16
100P 1M 2 1
R103
1K
R107
J
INPUT1 330K
C164
C176
JK9
2 10P
10/16
LGR4609-7000
R117 1
K
2 2 1 3
4
IC35A
3 1K
R96
UPC4570G
1
47K
R116
47K
C172
L R37
100/16
470
2 1
R102
1K
M R112
330K
INPUT2 C163
C199 10P
2
JK5 R40
N
100P
C177 1
LGR4609-7000 1K
2 2 1 3
IC36A
4
3 10/16 UPC4570G
R104
1
R97
47K
R39
O
47K
470
C173
100/16
P
JK10B 2 1
2
R101
8
1K
Q
YKC21-3164
C201
INPUT3
100P C200
R43 2
10/16
R JK6 1
1K
2 2 1 3
IC37A
4
3 UPC4570G
1 R105
R98
47K
R42
47K
470
S
LGR4609-7000
C174
100/16
2 1
JK10A
1
T
R100
7 1K
YKC21-3164
C202
INPUT4
U
100P
C179
R46 2
10/16
1
JK7 1K
2 1 3
2
IC40A
4
UPC4570G
3
V 1 R99 R106
47K 47K
R45
470
LGR4609-7000
IC35C
W
8
X
4
Y
Z
10 11 12 13 14 15 16 17
to PEAK LED from DIGITAL CIRCUIT
CN13 CN10
IL-S-8P-S2T2 52147-0610
PHONE_SEL
MCK
2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 1 2 3 4 5 6 BCK
LRCK
2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 1 2 3 4 5 6
AD0
AD1
C301 DA0
DA1
R109 0.1
MUTE
120 R111
RESET
120
R110
120
MUTE :
H(ACTIVE)
RESET :
L(ACTIVE)
Q15,Q16:
2SC4116GR
Q15
R74 3
1
Q16
3
C215 47K 2 1
10P R85
10K 2 2
C156
R89 1/50
1
R38 1K
6 C114 R138
7 1 2
10K 5
IC35B
10/16 470
UPC4570G
Q17,Q18: 2SC4116GR
Q17
R75 3
1
Q18
3
C216
47K 2 1
10P
R84 2 2
C157
10K
1/50
R88
1
R41 1K
6 C113
7 1 2
10K 5
IC36B
10/16 R137
UPC4570G
470
Q19
2SC4116GR
R76 3
1
3
C217
2 1 Q20
47K
R113
10P R83 2SC4116GR
330K
10K 2 2
C158
C162
R90 1/50
1
10P
R44 1K
6 C116 R136
7 1 2
5
10K
IC37B 10/16 470
UPC4570G
Q21
2SC4116GR
R81 3
1
3
C218
47K 2 1 Q22
10P 2SC4116GR
R82
R114
2 2
10K
330K C159
R91 1/50
C161
1
10P
R47 1K
6
C115 R135
7 1 2
10K 5
IC40B 10/16 470
UPC4570G
IC36C IC37C IC40C IC41C IC42C IC43C
8 8 8 8 8 8
4 4 4 4 4 4
IC35-37,IC40-43:UPC4570G
18 19 20 21 22 23 24 25 26
MON/AUX OUT
H : MON/AUX
L : MASTER OUT
R139 R140
4.7K(D) 4.7K(D)
Q13
R78
RN2307
R144 2 10K R79
C231
R143
1
0.1 68(D)
68(D) Q23
RN1307
3 3 1M
1
R142 R141 4.7K(D)
2
4.7K(D)
R72 2
10K 1 Q14
R132
RN2307
470 3
C232 R80
0.1
R131 1M
470
R73
10K
C117 C191
0.1 10/6.3
C118
0.1
C121
2 0.1 2 2 C190
C189
10/6.3
10/6.3
1 1 1
IC38
1
28
VREFH VCOM
C237 2 27 AUX-R
VREFL AOUTR
0.1 3 26 AUX-L
AINR AOUTL
4
25
VRADR CMODE
5 24
AINL PWAD
6
23
VRADL PWDA
C219 7 22
C220 VA DGND
8 21
AGND VD
9
1000P 1000P 20
DIF0 TST1
10 19
DIF1 TST2
11
18
LRCK TST3
12 17
SCLK DEM1
13 16
SDTI DEM0
14
15
SDTO MCLK
AK4520A
2 2
C195
C196 C119
C120 10/6.3
10/6.3 0.1
1 1
0.1
C193 C123
R146 R145 C122 C126
0.1
4.7K(D) 4.7K(D) 0.1 0.1 10/6.3
2 2
R147
C239 R148 2
C241
68(D)
0.1 68(D) C192
0.1
10/6.3 1 1
1
R149 C238
C194
R150
0.1 IC39
4.7k
10/6.3
(D) 4.7K
(D)
1 28
R133 VREFH VCOM
R134 2 27 MST-R
VREFL AOUTR
470
470 3 26 MST-L
AINR AOUTL
4 25
VRADR CMODE
5 24
AINL PWAD
6 23
VRADL PWDA
7 22
C222 C221
VA DGND
8 21
AGND VD
1000P 9 20
1000P
DIF0 TST1
10 19
DIF1 TST2
11 18
LRCK TST3
12 17
SCLK DEM1
13 16
SDTI DEM0
14 15
SDTO MCLK
AK4520A
2 2
C125
C197 C198
0.1
10/6.3 10/6.3
1 1
C124
0.1
from POWER SUPPLY UNIT
CN12
B7B-XH-A
1
1
2
2
3
3
4
4
5
5
6
6
7
7
VS-840/840S
27 28 29 30 31 32 33 34 35
C140
0.1
MASTER OUT
CN8
C147
52147-0510
0.1
1 2 3 4 5
1 2 3 4 5
P
H
O
N
E
-
L
C169 R86
D6 Q10
C165 1 2
1SS352 2SK880GR
0.047
10/16 5.6K
2
2 P
D4 H
O
1 2 1SS352
N
3 1 2
E
3 Q8
-
1 2SK880GR R
2 2 1
C166 C170 R87
1 2 1 2 1 2
0.047
Q9
3 Q11 3
2SK880GR 2SK880GR 10/16 5.6K
D7 D5
1 1
1SS352 1SS352
C235 100P
R64
C136
10K
C131 R179 R93
10/16
2 1 6 R65
7 1 2
10/16 1.8K 8.2K 5
IC43B
1K 3
C335 UPC4570G 1
R68
2200P
100K
2
C233 100P
R56
C128
C127 R180 R95 10K
10/16
2 1 6 R49
7 1 2
10/16 1.8K 8.2K 5
1K 3
IC42B 1
C336
2200P UPC4570G R71
100K 2
C236 100P
R60
C132
10K
R92
10/16
2 R57
1 1 2
8.2K 3
1K 3
1
IC43A R70
100K
UPC4570G
2
C133 R181
2 1
C337
2200P
10/16 1.8K
100P
C234
R48
C134
10K
C135 R182 R94
10/16
2 1 2 R61
1 1 2
10/16 1.8K 8.2K 3
IC42A 3
1K
C338 UPC4570G 1
2200P R69
2
100K
R130 Q24
2SC2712GR
1K
C184
470/16
3 2
R120
68(1W)
C150
2 1
0.1 2 2 C152 2
C214
C187 C212 0.1
100/16
1
100/16
0.1
1 1 1
2 2
C188
C211 C209
0.1
C151 2 100/16 100/16
C213
1 1
0.1 C153
1 100/16 0.1
1
2 3
R129
C185
Q25 C210
1K
470/16
2SA1162GR 470/16
CN15
C41 0.1
1
1
2 2 2
C186 for DISK DRIVE POWER
2
C175
3
0.1 3
1000/16
1 1 B3B-XH-A
14
Mar, 1998
36 37 38 39 40 41 42
2
C154
100/16
1
2
C155
100/16
1
C168
PHONES
10P
R52
Lch
EMI2
DSS306-55FZ103N
47K
2 C129 R54 JK8
1 1 2 2
3 4
220/16 100 3
IC41A
1
UPC4570G
C167 LGR4609-7000
10P C240
R53 0.1
Rch
47K
6 C130 R55
7 1 2
5
220/16 100
IC41B
EMI1
UPC4570G
DSS306-55FZ103N
R66 C183 JK10F
2 1 6
Bch
1K 10/16 12
Q7 R67
DTC314TK 100K YKC21-3164
MON/AUX OUT
R50 C180 JK10D
2 1 4
Ach
1K 10/16 10
Q4 R51
DTC314TK 100K YKC21-3164
R58 C181 JK10E
2 1 5
Rch
1K 10/16 11
Q5 R59
DTC314TK 100K YKC21-3164
MASTER OUT
R62 C182 JK10C
2 1 3
Lch
9
1K 10/16
Q6 R63
DTC314TK 100K YKC21-3164
IC46
TA78L005AP
3 2
IN OUT
C
O
C208
M
0.1
1
C207
0.1