Service manual

ABCDE
1
2
3
4
5
6
7
Soavo-900SW
35
■ REMOTE CONTROL
● SCHEMATIC DIAGRAM
Key
No.
1
2
4
5
6
9
12
18
19
20
21
22
Key
Name
B.A.S.S.
POWER
VOLUME DOWN
Data Code
(HEX)
48
53
4B
46
47
4C
42
4A
4D
44
45
PRESET 1
HIGH CUT UP
HIGH CUT DOWN
PRESET 2
17
5E
SLEEP
49
STANDBY
PHASE
MEMORY
PRESET 3
VOLUME UP
CUSTOM CODE (HEX): 7B-84
IC1 : M34283G2GP-W5/U1
Vss
1
+
E2
2
E1
3
XIN
4
XOUT
5
E0
6
G0
7
G1
8
G2
9
G3
10
X1
4.00MHz
VDD
20
CARR
19
D0
18
D1
17
JP1 JP2 JP3 JP4
D2
16
D3
15
D4
14
D5
13
D6
12
D7
11
1
1817
9
2
19 20
4
12
21
5
22
6
C2
0.1µF
C1
47µF
3.0V
Q1
2SC3440-T112
R2
D1
MIE-554A2
27 ohms
R1
2 ohms
POWER
STANDBY SLEEP
PHASE
MEMORY
PRESET
HIGH CUT
VOLUME
231
B.A.S.S.
1917
182
19
20
21
22
124
5
6
WH64300
● PANEL ● KEY LAYOUT ● KEY CODE