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

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