Roland JX-305 GROOVESYNTH Service Notes page 22

JX-305
A
CIRCUIT BOARD (SND_PWR)
B
C
D
E
F
A
G
L27
N1608Z A121
C146
0.1u
C163
H
4.7/6.3
D
12
DEM1
11
DEM0
I
15
DIF2
14
DIF1
13
DIF0
7
SD SDATA
8
WCK LRCK
J 6
BCK BICK
5
DMEN PD
9
SMUTE
10
DFS
4
256fs MCLK
3
K
CKS
D
L
M
A +
C177
A + 9
0.1u
N
A
- -
IC25C
+ +
UPC4570G
O
A
P
Q
R
S
D C I N
T
U
V
R64 56k
C255
R251 39k
0.047u( Film)
+ 5
R253 C144
R61 12k 2 2 0 p(Film)
R57 15k NIU
C157
+ 5
A
4.7/6.3
C150 2
-
R60 15k 1 2 0 0 p (Film) 1
A 3 IC25A
+
UPC4570G
R201 15k
C99 R70 C127
+
1 8 0 p(Film)
24 10/16 C100 10k
DZFL
10/16
19
AOUTL+
18
AOUTL-
17
AOUTR+
R85 56k
16
AOUTR-
23 C101 C254
DZFR + 5
A
10/16 C102 R250 39k 0.047u( Film)
21 10/16
VREF
R252 C168
C166 R78 15k R82 12k NIU 2 2 0p(Film)
1u
IC24
AK4324
A C171 6
-
C7
R81 15k 1 2 0 0 p (Film) 7
0 5 IC25B
+
UPC4570G
D A
R202 15k
C132
R88
+
C154 10k 1 8 0 p(Film)
9
10/16
C178
0.1u
A
IC23C
M5216AFP
A
A MUTE
fo r S W
CN9 CN10
W-1 W-2
FL1
D4
DSS310
SPFB 54
223
1 2
C189 C190 C192
F
NIU NIU C191 NIU
JK8 2200/16
2
1
3
HEC2305-01-25 0 R300
0
R7 R4
F
0
A
PA N E L
B O A R D
CN8
A
5 2 147-1010
C162
220p
+
A 9
C170 R76
10/16 4.7k
C143 R77
0.1u
10k
C148 R80 6
A
-
100/16 1k 7
5
+
IC23B
A
M5216AFP
AV-CENTER
+
C155 C205
R66
10/16 10/16
1.5k
R225
100k A MUTE 1
A Q8
DTC314
C142
220p
C149 R55
10/16 4.7k
R56
10k
R59 2
A
-
1k 1
3
+
IC23A
M5216AFP
C175 C206 R86
10/16 10/16 1.5k
R226
A MUTE 1
100k A MUTE
A Q9
DTC314
DA3
3 1SS302
R90 R1
Q11
47k 47k
2SA1576A
R93
470
1
D3 R94
R92
1 2 10k
100k
C181 1
RD4.7S C182 R95 4.7/50
Q12
220/16 47k
2SC4081
A
+
A 9
3 2
VA-CENTER
+ 5
D Q13 R20
IC27
SI-8501L R98 2SC32 65Y 1.8k
6 1
1k
VIN VO
C185
100/16
C194
C193 1000/16 C197 D2
0.1u 0.1u RD4.7S
C195
C196
NIU 220/16
D
R301
0
F
R5
A
0 0
22
C145 R58 R203
220/16 4 7(1/10W) 4 7 (1/10W)
R63 1 C153
100k 100p
Q21
DTC314
A MUTE
A F
R67
470
C160
100p
A F
L15 0
L16 0
C262 0.1u
JK5
C169 R79 R204 2
220/16 4 7(1/10W) 4 7 (1/10W) 4
3
1
L G R 4 6 0 9 - 7000
1 C172
L17 0
JK6
R84 100p 2
Q22
100k 4
DTC314
C261 0.1u 3
A MUTE 1
A F
L G R 4 6 0 9 - 7000
L18 0
JK7
2
4
R87
C260 0.1u 3
470
1
C180
L G R 4 6 0 9 - 7000
100p C173
NIU
A F A
A F
+ 5 + 5
D D
R91
1k
1 DMEN XRST
XRST
Q10 + 5
D
D T A144W
7 1
VCC NC
C87 0 2
NC
3 C184
C183
NC
R96 0.1u 8 1u
NC
22k 4 5
GND DLY
C90 0
D F D IC26 D
M5195 3BFP
+ 5
A
IC28
+
78L05F
3 1
IN OUT
C158 C159 C188
0.1u 220/16 10/16
C186 C187
0.1u 0.1u
A
Sep. 1998
P H O N E S
LINE L
L I N E R
1
C80 0
to FG
C36 0
D
TER3
M1698
1 4
2 3
F
TER2
M1698
1 4
2 3
F
TER1
M1698
1 4
2 3
F