Audio Circuit - Philips FW-M355 Service Manual

AUDIO CIRCUIT

1 2
A
4u7 2260
3265
2.4V
AOL-
2
10K
4u7 2269
3281
2.4V
AOL+
3
10K
B
VR
C
4u7 2246
3261
2.4V
AOR-
6
10K
4u7 2245
3282
2.4V
AOR+
5
10K
D
VR
2.4V
3K9
3256
AGND AGND AGND
E
+5V
7211
LF35
5209
IN OUT
GND
F
ALL DC VOLTAGES ARE MEASURED UNDER 5V SUPPLY CONDITION
Note : Some values may varies, see respective parts list for correct value.
1 2
8-9
3 4
2251
1n
3266
4K7
AGND
4
2252 10u
3285 LEFT
2.4V
1
100R
NJM4560M
8
7207-A
AGND
AGND
2250
1n
3262
0.5ms
4K7
~160ms
CD10_RST TIMING
AGND
4
2242 10u
3286
2.4V
7
100R
RIGHT
NJM4560M
8
7207-B
AGND AGND
4.5V
+5V
5211 3255 3254 3253
47R 47R 33R
3.5V
VDD3
3 4
5 6
+5V
4.4V
0.5ms
+5V
CD10_RST
3278
0V
7214
BC847BW
22K
RAB
VA
3251
5216 4.8V
4R7
AGND AGND AGND
5 6
8-9
7 8
3259
VCC
10K
33 32 31 30 29 28 27 26 25 24 23
P2_4
34 P0_3
P2_3
35 P0_2
P2_2
36 P0_1
P2_1
37 P0_0
P2_0
38 VDD
NC2
39 NC4
7212
40 P1_0 VSS
8-bit microcontroller
41 P1_1 XTAL1
XTAL2
42 P1_2
43 P1_3 P3_7
44 P1_4 P3_6
1 2 3 4 5 6 7 8 9 10 11
VAA
3139 118 54470...for 88170...3448 pt2 dd wk0141
7 8
2202 F3
9
2203 F3
2204 F3
2209 F1
2212 F2
2221 F6
2237 D1
2238 F7
2240 D1
A
2242 C3
2243 F5
2244 D2
2245 C1
2246 C1
2249 F2
2250 B2
2251 A2
2252 A3
2255 F6
2257 F6
2260 A1
B
2266 D1
2267 B1
2269 B1
22
2274 D3
21
2275 B3
2278 C5
20
2283 B6
3215 A8
19
3216 A8
18
3220 A8
3222 A9
17
3251 E4
C
3252 A5
16
3253 D4
15
3254 D3
3255 D3
1.9V
14
3256 D2
2.2V
3257 D2
13
3260
3258 D2
12
3259 B7
1M
3260 D9
5202
12MHz
3261 C1
3262 C2
D
3263 A8
3264 A8
12M CST
3265 A1
3266 A2
3267 B2
3268 A5
3269 B5
3277 C6
3278 C6
3279 D6
3281 B1
3282 C1
E
3283 B3
3284 D3
3285 A3
3286 C3
5202 D9
5209 E2
5211 D2
5216 E5
5217 B5
6208 F5
7207-A B2
7207-B D2
F
7211 E1
7212 C8
7214 D5
9