Front Panel Pcb Schematic - Cambridge Audio 340C Service Manual

CN2 LCD1
1
COM0
2 1
COM1
3 2
COM2
4 3
COM3
4
5
SEG0
5
6
SEG1
7 6
SEG2
8 7
SEG3
8
SEG4
9
CONN-H8
SEG5
10
CN3
SEG6
11
SEG7
1 12
SEG8
13
2
SEG9
14
3
SEG10
4 15
SEG11
5 16
SEG12
6 17
SEG13
18
7
SEG14
19
8
SEG15
20
SEG16
CONN-H8 21
SEG17
22
CN4 SEG18
23
1 LCD
2 PACKAGE=LCD D600
3
4
5
6
7
CONN-H7
+5V
+5V
R15
330R
C4
CN7
100n
1
RESET
2
PWR DET
3
4
5
R6
K1
6
7
10K
CONN-H7
C2
1000p SW1
PLAY/PAUSE
R11
K2
3K3
C3 SW3
1000p OPEN/CLOSE
Cambridge Audio Azur 340C CD Player
+5V
C6
10uF 10V
C1
100n
U3
1
VDD
2
RB5/OSC1/CLKIN
3
RB4/OSC2/CLKOUT
4
RB3/MCLR/VPP
5
RC5/TOCKI
6
RC4
7
RC3
16C505
U2
+5V
3
GND
2
OPT
1
TSOP18 IR RECEI
R5 R3 R4 R9
2K7 27K 33K 82K
FORWARD SKIP FORWARD SEARCH
SW2
STOP
R10 R8 R7
68K 1K5
82K
BACKWARD SKIP BACKWARD SEARCH
AP12992/3 Front Panel PCB Schematic
14
VSS
13
RB0
12
RB1
11
RB2
10
RC0
9
RC1
8
RC2
SW4 SW5
SW-TACT SW-TACT
+5V
R13
10K
R12
4K7
Q2
BC327
CN1
1
2
CONN-H2
R2
1K8
SW6
SW-TACT
CN5 CN6
1 1
2 2
3 3
CONN-H3 CONN-H3
R14
820R
R1
820R D2
LED
Standby
P2
PAD
P1
PAD
Q1
BC337
D1
1N4148
R16
D3
33R
1N4148
PGND