Philips AZ127/73/93 Service Manual page 27

CD & KEY PART CIRCUT
FOCIN
1
OUT1A
2
OUT1B OUT4A
7V
3
IN1A OUT4B
4
IN1B
Q5
A928 IC503
+5V 5
REG
SA9258
6
REO
C91
C3 7
MUTE
104P
220U/16V
30
GND4
8
GND1
9
IN2B
MGND 10
IN2A
CN9
11
OUT2B OUT3B
SP+
12
SP-
OUT2A OUT3A
SL+
13
GND2 OPIN+
R35
SL-
10K
INNER 14
OPOUT
GND
R32 15K
R31 15K
R17 15K
15K
R16
68K
R8
68K
R2
102P
102P
C34 C33
C86 C87
221P 221P
CN3
16
FCS-
15
TR+
14
TR-
R94
10R
13
FCS+
9015
12
PD
Q7
2
11
VR R58
10R
10
LD
C100
9
GND
104P
8
F
R28 56K
7
C
R29 56K
6
B
R26 56K
5
A
R30 56K
4
D
3
E
C66 104P
2
VCC
1
VC
C5
47U/16V C48 C66
104P 104P
RFGND
5-1
R42 3K3
8k2
R43
R45 2K7
R46 2K7
28
GND3
C44
RAD-
27
104P
26 RAD+
25
IN4A
GND
RADIN
24
IN4B
R59
23
VREF
7V
22
VCC2
C14 C67
R53
C51
22K
29
104P
GND5
10UF/50V
104P
21
VCC1
20
IN3B
19
IN3A
18
FOC+
17 FOC-
16
15
OPIN-
RFGND
R66
+5V
R33 10K
R34 10K
10K
R24
10K
R15
R3 10K
R1 10K
C32 C30 C25 C26 C35 C36 C31 C29 C27 C28
221P 221P 221P 221P 221P 221P 221P 221P 221P 221P
AGND
R84 2R2
C102
C98
104P
100U/16V
C50
C52
R60
104
22K
104
RFGND
RFC VDD
1 16
R47 150K
LD LDON
2 15 R537 NC
MON BST
3 14
R92 1K
RFRC
4 PD 13
C101 103P
RFI
5 RFM 12
GND RFO R93 C97 C89
6 11
1M
REF EQIN C105
7 10
1U/50V 476P
104P
RFG RFAC
8 9
4K3
R99
102P 1K
C104 C45 R48
3P
C37 C19 C73
104P 10U 10U
4K7
R41
R38 4K7
22K
R39
R40 10K
C41 C43 C42
104P 332P 332P
2.2R
R77
+5V
22K
C80
C22
47U/16V 104P
C63
106P
DGND
C12 C46 C114
C81
104P 106P 106P 106P 49
VSSA1
15R 50
VDDA1
51
B
52
A
53
C
54
D
IC501
55
F
56
E
SC9637B
57
VCOM
58
ISLICE
59
IFIN
60
HFREF
C84 18P
61
VSSA2
62
VDDA2
63
CRIN
C94
C85 64
CROUT
R52
223P
104P
100k
R61
1K
X1
RFGND
8.4672M
R62 100K
C54 C53
20P 20P
DGND
CN8
C70 C71 C72
106P 106P 106P
CD_DOOR
OPEN
5-1
L1
DGND
1 4
DGND
7V 2 3
7V
TO POWER PART
L IN
AGND
R IN
MUTE
C62
C301
106P
100P
R76 10R +5V
C79
104P
R27
C38 C39
4K7
47U/16V
102P 102P C24
DGND
32
VSSP
31
AMP_MUTE(SEG17
30
P3(SEG16)
29
SEG8/LED_I
28
SEG7/LED_H
27
SEG6/LED_F
26
SEG5/LED_F
CN7
25
SEG4/LED_E 1K
R71
24
SEG3/LED_D 1K
R75
23
SEG2/LED_C 1K
R74
22
SEG1/LED_B 1K
R73
21
SEG0/LED_A 1K
R72
20
COM3 1K
R80
19
COM2 1K
R81
18
COM1 1K
R82
17
COM0 1K
R83
10K
R70
C69 Q15
C65
9014
1K
104 103P
R37
R36
10K
D6
4148
DGND
KEY&DISPLAY BOARD
CN1
9
SEG4
8
SEG3
7
SEG2
6
SEG1
5
SEG0
4
COM3
3
COM2
2
COM1
1
COM0
KEY
LCD1
GND
POWER
R50 R102 R177 R176 R104
22K
5k6 8K2 12K 47K
SW7
SW5 SW8 SW1 SW9 SW11
MODE
DOWN/REW
UP/FF PROG
STOP