Cambridge Audio 340A - Tone Control Schematic

Cambridge Azur 340A Intergrated Amplifier
AP14476/3 Main PCB Schematic (Tone Control)
C1
330p poly
R1
22k
R2
4k7
R3
4k7
R4
8k2
R11
8k2
C6
150n poly
C9
10p
SW1:A
SW-DPDT
DEFEAT
-15V
+15V
C10
330p poly
R20
22k
R42
4k7
R43
4k7
R44
8k2
R45
8k2
C11
150n poly
C15
10p
SW1:B
SW-DPDT
DEFEAT
C16
47n poly
C17
47n poly
3
2
1
84
U2:A
NE5532
5
6
7
U2:B
NE5532
R CH IN
L CH IN
POWER AMP RIGHT
POWER AMP LEFT
R52
150k
R54
150k
R59
150k
R60
150k
1 3
2
VR1:A
20K MOTORISED DUAL POT
4 6
5
VR1:B
20K MOTORISED DUAL POT
4 6
5
VR4:B
MN20K BALANCE
13
2
VR4:A
MN20K BALANCE
13
2
VR2:A
B20K LINEAR
46
5
VR2:B
B20K LINEAR
13
2
VR3:A
B20K LINEAR
46
5
VR3:B
B20K LINEAR
ZERO LOSS
WHEN CENTRAL
TONE CONTROL VOLUME/BALANCE CONTROL
TREBLE
BASS
TREBLE
BASS
C19
47u 16V
C20
47u 16V
C29
47u 16V
C32
47u 16V
86-756-8687998
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