Philips ARG300/77, Service Manual, Page: 12 / 16

CIRCUIT DIAGARM -MAIN BOARD PART 2
4-2 4-2
GND
CD +8V
CD L-CH
A GND
CD R-CH
H C - R H C - L
CD-RADIO-OFF
AUX-IN
FM CD
O
FF
O
FF FM
CD
O
FF FM
CD
O
FF FM
CD
230V
FM AM
TUNER BAND SWITCH
Q109
8550D
Q104
9014C
1
VC
C2
2
R
_O
U
T
3
BS
1
4
GND
5
N
F1
6
R
_I
N
1
7
L_
IN
8
NF
2
9
R
IP
10
BS
2
11
L_
O
U
T
12
VC
C
13
GND
1
14
GND
2
IC104 UTC8227P
C169
10
0u
/1
6V
C161
10
0u
/1
6V
C166
10
0u
/1
6V
R
10
8
47
0
oh
m
C164
10
0u
/1
6V
R
10
7
47
0
oh
m
C183 1000u/10V
C173
100u/16V
C184
1000u/10V
C150
154(M)
C151
15
4(
M
)
CON106
C103
330P
C1
11
33
0P
C1
71
0.
22
u
C1
53
0.
22
u
Q101
9014C
R104 2k2
R103
2k2
R102 10K
R101 10K
R131 10K
C175 10U
R130 NC
R128
NC
R127 NC
C140 NC
C141 NC
CN102
Q111
8050
R126 1K2
Q107
KTB772
Q102
9014C
D
11
2
1N
41
48
R125 180K
R123
820ohm
R122
470ohm
Z102
7V5
C176
100u/16V
C185 470u/16V
C123
104
D
11
4
1N
41
48
Q103
9014C
R121
33K
R120 33K
R119
10K
R117 1ohm
R116
10K
C167
100U 25V
D104
1N4001
F101
T1.6A L250V
C186 NC
C107
104
C1
87
47
00
u/
25
V
C109
104
C110 203
D101 1N4001
C104 203
D102
1N4001
C135 203
D103
1N4001
C131
203
C170
4u7/10V
C172
4u7/10V
C174
220u/50V
R136
1k8
R158
1k8
C165
3u3/50V
C168
3u3/50V
R105
12k
R106 12K
C102 152
C134 152
D110
1N4001
D108 1N4148
R111 NC
R114
NC
R
11
3
4.
7o
hm
R
12
4
4.
7o
hm
1
2
3
4
V101-A
5
6
7
8
V101-B
5
4
3
2
1
JK101-A
8
7
6
10
9
11
JK
10
1-
B
SP-L
8ohm,1W
SP-R
8ohm,1W
D
10
6
1N
41
48
Q
50
6
80
50
C
R188
1K
R187
33K
R
19
1
15
K
D117
1N4148
D
10
9
1N
41
48
L203 FB
L201 FB
L2
04
FB
C114
330P
C180
330P
R
50
9
56
0R
R
50
5
56
0R
C5
26
1u
F/
50
V
C5
28
1u
F/
50
V
R508
NC
R507
NC
C512
103
C532
104
C520
103
C524
47U/10V
R511 47R
C525 0.47U
C523
0.47U
FMANT
R519
4K7
Q512
8050C
R154
10k
Q505
8050C
R515
47k
Q502
8550
C541
104
R155
5K1
R156
5K1
R152
18k
R151 18k
R160
0R
R161 0R
Q110
9014
Q106
9014
R169
33K
R163 10K
R164
10K
C1
12
47
U
C105
4U7
R171 4k7
R170
4k7
1
2
3
4
5
6
7
CN403
7P
D
11
5
1N
41
48
Q105
8050
C101
47U
R109
3K3
R110
270K
R176
4k7
C115
820
R177 4k7 C113 820
R175
5k6
R172
5k6
R178 10K
R179
10K
Q112
8050
R
16
5
10
K
R180
1K
R167
33K
C163
100U
R168
10K
R162
15R
D105
1N4148
1
ST
ER
EO
2
ST
AT
3
TU
1
4
TU
2
5
BA
N
D
6
N
C
7
N
C
8
FM
I
9
R
FG
N
D
10
N
C
11
N
C
12
AM
I
13
GND
14
GND
15
R
ST
16
VO
R
+
/TR
EB
17
VOL
-/
BA
SS
18
XO
19
XI
20
VD
D
1
21
VD
D
2
22
D
BY
P
23
R
O
24
LO
IC501
Si4831-B30
C538
104
X1
32.768KHz
C514
22P
C530
22P
R510
100K
C509
2U2
C508
0.47U
AM
-C
O
IL
100T
D
50
1
1N
41
48
C506
33P
VR101
B50K
C536
104
C502
10U
R
51
6
10
0K
1
%
R506
100R
R503
137K 1%
1
GND
2
OUT
3
IN
U500
LM1117-3V3
R2
470R
R
52
9
10
K
R
53
0
22
K
R528
0R
R526
4K7
D506
1N4148
R525
4K7
C521
104
Q115
9014
R523
680K
C518
104
C1
104
C2
104
C4
152
C527
202
C529
202
1 2 3 4
SW103-A0
1 2 3 4
SW103-A1
1 2 3 4
SW103-A2
1 2 3 4
SW103-A3
C3
100U
R539
10K 1%
R129
NC
R1 NC
C5 NC
C6
NC
C7 NC
C148 NC
C8
562
C9
562
R3
10K 1%
R4
243K 1%
9V
CD_MUTE
GND