Main Board - Power Supply Pcb Schematic - Cambridge Audio 540R V2.0 Service Manual

INDICATES SAFETY CRITICAL COMPONENTS.
TO REDUCE THE RISK OF ELECTRIC SHOCK LEAKAGE
CURRENT OR RESISTANCE MEASUREMENTS SHALL BE
CARRIED OUT(EXPOSED PARTS ARE ACCEPTABLY
INSULATED FROM THE SUPPLY CIRCUIT) BEFORE
THE APPLIANCE RETURNED TO THE CUSTOMER.
FAN DRIVER
R230
820
D32
1N4148
C131
10UF/16
RT1
D33
02DSB282J
1N4148
R231
270
TEMP SENSOR
TO EarPHONE BOARD
CN17
4
PH-R PH-R
3
PH-L
PH-L
2
GND
1
PH-DET PH-DET
4P(2.0)
CN5
1
+5V
2
GND
3
~5.5V
4
~5.5V
5
GND
6
-27V
6P(2.0)
+14V
+5V
OVER LOAD PROTECT
CN11
1
+14V
2
ON/OFF
3
GND
3P(2.0)
D29
1N4148
CN10
1
P-ON/OFF
2
SYS MUTE
3
MUTE-DELAY
M-RELAY
4
PH-DET
PH-DET
5
PRO-TEST
6
D+5V +5V
7
GND
7P(2.0)
To enhance viewing, please print to A3
Cambridge Audio Azur 540R V2.0 AV Receiver
G5
G4
FAN+15V
CN3
1
1
FAN
M
2
2
2P(2.0)
Q85
2SC1627A-Y
R232
1.2K
CN6
1
Connected to bottom of cabinet
2
C42
2P(2.5) 104
IC1
7805
3 1
O I
+C102
47U/16
Q17
R104 D6
over load 1N4148
10K
C2458
R101
6.2K
+
C109
2200U/10
R174
100K
R176
33K
C121
R247 R131
D45 22K 22K
R245
47UF/25V
Q87
22K C2458 Q38
1N4148
R246 A1015 R248
100K 680K
SYS-MUTE
R164
22K
D7
1N4148

Main Board - Power Supply PCB Schematic

JK9
VIDEO3 board
AV3-8.4-14
CN21
R117
1
1
R IN
220
G1 2
AGND
R123
2 3
L IN
220
G2
3P(2.0)
C81 C82
R124 R126
3
47K 47K
330P 330P
G3
CN22
1
VIDEO IN
2
C94
C141
GND
C142
2P(2.0)
470P
104 104
CE
D39
R42
RELAY+15V
10/1W +C96 1N4001
470U/25
D40
R234
FAN+15V
4.7/1W
1N4001
+C101
470U/25
FH1
+55V
+ BL1 T12AL 250V
C99
C97
AC1 AC2
10000U/63
104M
MB252
-
C100
10000U/63 FH2
104M
C98
-55V
T12AL 250V
R240
R239
100
100
+ C103
D41
10U/50
6C2 D43
R241
3.3K/1W
1N4001
C107
C104 D42
+
330U/63
47U/35 + 1N4570(27V)
BL2
DB101G
+
AC2 AC1
+C106
C105
1000U/25
RF/0.22/1W
104M
R249 -
15K
-55V
D26
1N4001
C40 +
4.7U/25
R173
4.7K
Q88
C2878
R165
1K
5P2.5
~7.5V
5 1.5A
4
TO DEODER BRD 3
~16.5V
2
1.5A
1
~16.5V
1.5A
RF/0.22/1W
R235
CN1
1 1 ~15V
500mA
2
2
2P(2.5)
3
TO FUSE BRD
2
1
CN4
~32V
3
1
4A
2
2
3
1 ~32V
4A
3P(3.96)
2
2
~4.2V
1
1
250mA
CN8
2P(2.5)
2P2.5
2
TO VIDEO BRD ~13V
1
1.5A
Rto-FUSE
125 C 2A250VAC
CN9
2
1 1
R242
TO FUSE BRD
~14V
1
2
200mA 2
2P(2.5)
RELAY-STOP
D44
R244 R243
Q86
470 4.7K
1N4001 A1015
+C108 R26
22U/25 1K
16