Input Pcb Schematic (Headphone Driver) - Cambridge Audio 540A V2 Service Manual

R52
RCh HP Out
100R
(Rch Out)
R51
No Stuff
Main
R49
LCh HP Out
100R
(Lch Out)
R50
No Stuff
Main
-15V
GENERAL NOTES
1.
Rev1: Resistors R118-121 added
2. Rev2: Resistors R11,R12,R118-121
3.
4.
5.
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Cambridge Audio Azur 540A V2.0 Amplifier
R118
1k5
R43
U1:B
5 560R
7
6
R42
NE5532N
560R
R119
3k
Main
LK4
LINK10MM
R54
C97
+15V
10R
470U 25V EL
C96
R120
47N 63V PE
1k5
R48
Main
U1:A
560R
2
1
3
R47
R121
NE5532N
560R
3k
C95
47N 63V PE
Main
LK3
C94
R53
470U 25V EL
LINK10MM
10R
LK1
LINK10MM
LK2
Main
LINK10MM
values changed.
AP17649/5 Input PCB Schematic (Headphone Driver)
R39
5k6
Q6
BD139
R8
R40
1R
3k3
R6 R9
R41
Q5 1R 180R
2k7
BD139
Q4 C2
BD140 10N 63V PE
R7
5k6
Main
R44
5k6
Q3
BD139
R3
R45
1R
3k3
R1 R4
R46
1R 180R
Q2
2k7
BD139
Q1
C1
BD140 10N 63V PE
R2
5k6
Main
R10
CN2
360R
1
CN1
2
8
2,5MM 2W ST HEADER
7
R11
3
10R 2W
R12
2
10R 2W
1
HEADPHONE JACK
Main
R5
360R
RSW1
RSW2
R
L
GND
9