Audio Circuit Diagram - Philips FW-V787/21M 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
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
0.5ms
0.5ms
+5V
CD10_RST
3278
7214
BC847BW
22K
RAB
VA
3251
4.8V
5216
4R7
AGND AGND
5 6
8-9
7 8
3259
VCC
10K
33 32 31 30 29 28 27 26 25 24 23
34 P0_3
35 P0_2
36 P0_1
37 P0_0
4.4V
38 VDD
39 NC4
7212
40 P1_0
8-bit microcontroller
XTAL1
41 P1_1
XTAL2
42 P1_2
0V
43 P1_3
44 P1_4
1 2 3 4 5 6 7 8 9 10 11
VAA
AGND
3139 118 54470...for 88170...3448 pt2 dd wk0141
7 8
9 2202 F3
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
P2_4
2274 D3
21
2275 B3
P2_3
2278 C5
20
P2_2
2283 B6
3215 A8
19
P2_1
3216 A8
18
3220 A8
P2_0
3222 A9
17
NC2
3251 E4
C
3252 A5
16
VSS
3253 D4
15
3254 D3
3255 D3
1.9V
14
3256 D2
2.2V
3257 D2
13
P3_7
3260
3258 D2
12
3259 B7
P3_6
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