Alto L-6, Service Manual, Page: 9 / 28

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L6G.S03
Titel
Size
File:
Date:
Drawn By:
Sheet
Revision Model No:
8-Sep-2003
KEVIN LIN.
UDASP IN/OUT SECTION
4 4 of
ALTO L-6
VER030709
A2(C)
C42
22P
C243
1.5nF
C240
4.7uF
5
6
7
U29B
4580M
R154
10K0
R305
68R
R307
10K0
R152
10K0
R153
10K0
3
2
1
U29A
4580M
R155
10K0
C245
1.5nF
C242
4.7uF
5
6
7
U30B
4580M
R161
10K0
R306
68R
R157
10K0
R160
10K0
R163
10K0
C241
4.7uF
5
6
7
U31B
4580M
3
2
1
U31A
4580M
C244
1.5nF
R159
10K0
R158
10K0
C45
22P
R162
10K0
C43
22P
R309
2K2
R156
10K0
AUX-SEND1
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
CN2
HEADER 8X2
1
2
3
4
COM
EN1
SDB161PVB15FS
1
2
3
4
5
6
7
8
AR1
680R*4
DGND
+5VD
GND
R312
220R
R311
7K5
LD8
RED
8
4
U29C
4580M
8
4
U31C
4580M
8
4
U30C
4580M
C224
100n
C225
100n
C226
100n
C227
100n
+VCC
-VCC
C229
100n
+5VD
DGND
C249
10uF
UDASP IN/OUT SECTION
JP1
PGND
1
2
4
8
3
2
1
U32A
LM393
5
6
7
U32B
LM393
R185
4K7
+VCC
R279
1K
C222
100n
R192
1M
R310
2M2
R315
820K
D8A
RB400D
PEAK(FLICKER)
MUTE(GLOW)
VARIATION
8
4
U32C
LM393
C247
33P
C246
33P
L6G (4/4)
AUX-SEND1
RETURN1
STEREO AUX
3c
5e
1a
4d
2b
X15
JY-6351G-02-250
3c
5e
1a
4d
2b
X16
JY-6351G-02-250
RIGHT 1
LEFT 1
EFXRTN-L
EFXRTN-R
AUX-RTN1-L
AUX-RTN1-R
VR30
W50K
VR31
W50K
C250
4.7uF
C251
4.7uF
REVERB LEVEL
FX LEVEL