Abus Module Pcb Schematic - Cambridge Audio 540A V2 Service Manual

2,5MM 3W ST HEADER
2,5MM 5W ST HEADER
C1
10uF 16V EL
LOGIC GND
Q1
R2
BC337-25
10K
LOGIC GND
Cambridge Control Bus
CA IR DEMODULATOR
D1
U2
+5V
IR REC 3/5V 36KHZ
R52
A EMITTER IN (MODULATED IR)
220R
R40
IR receiver
47R
K
JACK-CKX-3.5-12
C3
C4
10uF 16V EL
100n 50V X7R
LOGIC GND
U1:A
1
3
2
4011 VDD=+5V
VSS=LOGIC GND
CONTROL BUS IN
LOGIC GND R7
+5V
220K
CN2:A U4
R6
3 1 6
1
220R 5
AV2-8,4-10
2
3 4
NC
OP4N25
R38
C31
10K
100n 50V X7R
LK14
LK7,5MM
LOGIC GND
+5V R3
10K
LK17
LK7,5MM
LOGIC GND
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Cambridge Audio Azur 540A V2.0 Amplifier
RIGHT
CN9
1
C23
2
3
1N 50V CERAMIC
+5V
CN1
R53
1K
1
ABUS GND
2
3
4
5
LOGIC GND
LEFT
C2
100n 50V X7R
STATUS
Abus Powered Circuitry
+5V
R34
R39 27K
47R
3.5mm JACK
C5
C6
10uF 16V EL
CN8
100n 50V X7R
U3
D2
A
+5V
3
GND
2
OPT
IR receiver
1
K
IR REC 3/5V 37KHZ
LOGIC GND
CA IR DEMODULATOR
VDD=+5V
VSS=LOGIC GND
U1:D
12
CONTROL BUS OUT
11
13
CN2:B
R5
LK15
4011 4
LK7,5MM 2
100R
U1:C AV2-8,4-10
R1
C32
8
10K
1N 50V CERAMIC
10
9
4011 VDD=+5V
LK16
VSS=LOGIC GND
U1:B LOGIC GND
LK7,5MM R4
5
C33 2R2
Q2
4
100n 50V X7R
6
BC337-25
4011
VDD=+5V
VSS=LOGIC GND
LOGIC GND
LOGIC GND
+5V
C34
100n 50V X7R
LOGIC GND
AP17708/4 Abus Module PCB Schematic
+12V
LK2
LK7,5MM
R50
10K
C28
C27
100U 16V EL
100U 16V EL
ABUS GND
ABUS GND
C22
LK11 R21
LK7,5MM 120k
47U 25V EL
C21
R41
120k
47U 25V EL
C29
LK12
LK7,5MM
47U 25V EL
R43
120k
R44
120k
+12V
R27
R35
10K 120k
Q4
BC327-25
R26
R33
120k
R29
4K7
100R
Q5
R28
BC337-25
100R
R30 R31
R22
10K 10K
120k
R23
ABUS GND
LOGIC GND
120k
D4 D6
LK6
LK7,5MM
1N4148 BZX79C2V7
D3 D5
1N4148 BZX79C2V7
+12V
LK13
LK7,5MM
Q3
BC337-25
R37 R12 R36
470R 10K 4K7
ABUS GND ABUS GND
U7
D7
L7812
R51
3 1
VO VI
100R 0.25W Fusible
1N4004
C24 C26
R49
C25
C30
10K 10uF 16V EL 220uF 35V EL
100n 50V X7R
100n 50V X7R
C35
100n 50V X7R
LK1
ABUS GND
LK7,5MM
R42
150k
+24V
C16
5 R48
7
6
47R
U6:B 10U 35V NP
NJM5532M
C13
47p 50V NP0
R20
150K
R45
ABUS GND
150K
C14
10p 50V NP0
LK7
LK7,5MM
+24V C20
LK9
LK7,5MM POLYFUSE 1-1A
100n 50V X7R ABUS GND F2
C17
3 R47
1
2
47R
U6:A 10U 35V NP
NJM5532M
C18
47p 50V NP0
ABUS GND
R46
ABUS GND
150K
R25 C19
10p 50V NP0
150k
C8
5 R17
7
6
U5:B 47R
10U 35V NP
NJM5532M
C9
C7
47p 50V NP0
10p 50V NP0
R32
ABUS GND
150k
+24V C10
R24 LK10
150k
LK7,5MM
100n 50V X7R ABUS GND
C12
3 R18
47R
1
2 POLYFUSE 1-1A
U5:A 10U 35V NP
F1
NJM5532M
C11
47p 50V NP0
ABUS GND
R19
ABUS GND
150k
C15
10p 50V NP0
R14
100R
R13
R16
27K
R15
27K
100R
ABUS GND
R9
100R
R8
R11
27K
R10
27K
100R
ABUS GND
CN7
2
+24V IN
+24V
1
C36
1N 50V CERAMIC
3
RICCO PCB JACK
ABUS GND
A-BUS A
KEYPAD A
CN6
8
LEFT AUDIO 7
6
IR 5
4
STATUS
RIGHT AUDIO 3
LK5
LK7,5MM
2
POWER 1
LK3
LK7,5MM
GENERIC RJ45X1
ABUS GND
A-BUS B
KEYPAD B
CN5
RIGHT AUDIO
8
LEFT AUDIO 7
6
IR 5
4
STATUS
LK8 3
LK7,5MM
2
LK4
POWER 1
LK7,5MM
GENERIC RJ45X1
ABUS GND
CN4
IR EMITTER OUTPUTS
1
2
CN3
IR EMITTER OUTPUTS
3
4
32