Input Pcb Schematic (Tone Control) - Cambridge Audio Azur 540A V2.0 Service Manual

VR2:A
B5K LINEAR
3
R24
1k1
RL1:B
4
RCh In LK16
3
5 LK10MM
ME2-5S
R19 R20
2k2 4k7
VR1:A
B5K LINEAR
3
C21
680N 63V PE
VR2:B
B5K LINEAR
6
R25
1k1 C20
RL1:C
7 LK18
1N5 63V PE
LCh In
6
8
LK15MM
ME2-5S
R21 R22
2k2 4k7
VR1:B
B5K LINEAR
6
C22
RL1:A 680N 63V PE
LK107
1
+5VOLTS
LK10MM
D8
2
1N4004
ME2-5S LK104
LK10MM
Q9
MPSA14
R123
Amp Mute
1k
R122
10k
LK109 LK108
LK15MM LK15MM
MAIN
To enhance viewing, please print to A3
Cambridge Audio Azur 540A V2.0 Amplifier
1
R23
1k1
C19
LK21
1N5 63V PE
LK15MM
C18
LK19
LK15MM
+15V 10P 50V NPO
R17
C14
2k2
1 47N 63V PE
U6:A
3
NE5532N
1
2
C16
47N 63V PE
-15V
4
R26
1k1
LK20
LK15MM
C23
R18
2k2
10P 50V NPO
+15V
C9
4
47N 63V PE
3
U5:A
1
2 NE5532N
C10
47N 63V PE
-15V
AP17649/5 Input PCB Schematic (Tone Control)
C5
SW2:B
47U NP 16V
R15
SW-DPDT
C6
150k
Tone Defeat
10N PP 63V
C12
10N PP 63V
U6:B
C11
6
7
5
NE5532N 47U NP 16V
R16
R35
150k
U2
R36
2k2
C13
2k2
10P 50V NPO
C4
SW2:A
47U NP 16V
R14
C3
SW-DPDT
150k
Tone Defeat
10N PP 63V
C24
U5:B 10N PP 63V
6
7
5
NE5532N C7
47U NP 16V
R13
R38
U4
150k
R37
2k2
C8
2k2
10P 50V NPO
GENERAL NOTES
1. Rev2: RL1,D8,Q9,R122,R123,LK104,107-109 added.
2.
3.
4.
5.
LK27
LK24
LK10MM
LK10MM
U4
VR4:B
MN20K BALANCE
C105
5
10N PP 63V
C104
LK35 U7:B
5
5 LINK15MM
10U NP 16V 6
VR3:B NE5532N
20K MOTORISED DUAL POT
R32
R31
1k5
22k
C106
Out
R30
10P 50V NPO
3k
Out
Out
LK37
LK15MM
+15V
C102
VR4:A
C100
MN20K BALANCE
47N 63V PE
2 10N PP 63V
U7:A
C101
NE5532N
LK36
2
2 LINK15MM
10U NP 16V 3
VR3:A
C99
20K MOTORISED DUAL POT
R29
R27
22k
10P 50V NPO
1k5
out
R28
3k C103
Out 47N 63V PE
-15V
Out
+15V
C15
100U 25V EL
LK25
LK10MM
C17
100U 25V EL
U2
-15V
R33
7
RCh Out
22R
CN3
1
RCh Out
2
LK33 J3 3
4
LK15MM
5
6
TERMINAL
Out
H6 2.54mm
LCh Out
TO POWER AMP
CN17
2
1
2MM 2W ST HEADER
R34
1
LCh Out
22R
7