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SX GA1065 - 10W PRACTICE GUITAR AMP
PREAMP BOARD
+16V GND
GND
8 C1B
C1 3 C8 C13
R1 C5 U1A R9
5 U1B 1
2,2k
7 2 4558 1k HIGH
220n 6 4558 C1A 10uF 4,7n
C2 C9 B10k
4 25V D5 D6 R11
R2 R5 GND 1,5k
100p R3 2,2k -16V
470k 68n R13
120k R5 R6 R8
GND C11 4,7k GND
GND C12
C3 2,2k 2,2k 47k
GND
220p C6 220n 100n
2 SWA LOW VOLUME
R4 A10k
680 1 MID C14
GND
3 A10k
68n B50k
J1 C4 5 DRIVE R12
C7 4 1k
GUITAR IN 100n R7 6
GND 2,2k SWB GND
10uF C10 GND
C15
25V
GND GND
220p
C17
R14 R16 R17
22k 22k 22uF 4,7R
C16 220n GND
AC1 R15 25V 1W
GND GND
470
-16,7V R18 J2
Fuse C22
0,25A GND 220R
100n
1W
+16,7V +16V C23
AC2 R25 GND GND
100n SK+
+16,7V HEADPHONES
220R
2x12V
1
2
3
4
5
1W C18
500 mA C20 C24 C26
D1 D2
2200uF 100n 47uF 100n SW (Drive)
25V 25V
~12V
1
2
3
4
5
1 1 Bottom view
~220 2 2 1n4007
GND
3 3 D7 AMP BOARD
SW ~12V
1 2 D3 D4 C19 3 6
C21 C25 C27 1 4
T1 2 5
POWER R21 2200uF 100n 47uF 100n
3,9k 25V 25V +16,7V
R26
220n
5
220R 6,5"
GND -16,7V 1W -16V 1 U2
CHASIS 4 SPEAKER
2 6 Ohm
TDA2030
3
-16,7V