Philips FWM583 Service Manual page 32

CIRCUIT DIAGRAM - MIC BOARD
J350A J350A
Phone Jack Phone Jack
L350A L350A
9
7
8
10uH 10uH
R350A R350A
47K 47K
AGND
AGND
MIC1_DET
TP304 TP304
TP305 TP305
TP306 TP306 IN4148 IN4148
CN351 CN351
D352 D352
1
P1 MIC1_DET
2
P2 MIC2_DET
3
P3
4
P4
AGND
CON_4PIN_FFC_1.27mm CON_4PIN_FFC_1.27mm
J351A J351A
Phone Jack Phone Jack
L350A1 L350A1
9
7
8
10uH 10uH
R360A R360A
47K 47K
AGND
AGND
MIC2_DET
IN4148 IN4148
D353 D353
All manuals and user guides at all-guides.com
9-4
MIC_VCC
R355A R355A
2K7 2K7
R353A R353A R354A R354A
C355A C355A
330K 330K
2K7 2K7
C354A C354A 0.01uF 0.01uF
2
0.47uF 0.47uF
C352A C352A
R351A R351A
Q350A Q350A Q351A Q351A
2
BC547B BC547B BC557B BC557B
+ +
2K2 2K2
0.47uF 0.47uF
C350A C350A R352A R352A C353A C353A
4700pF 4700pF 56K 56K 1000pF 1000pF R370A R370A R371A R371A
47R 47R 47R 47R
MIC_VCC
R356A R356A
1K 1K
D351A D351A R358A R358A
Q352A Q352A
2
BC547B BC547B
IN4148 IN4148 1K 1K
Q353A Q353A
2
BC547B BC547B
R357A R357A C356A C356A
1M 1M
1.0uF 1.0uF
AGND
MIC_VCC
R365A R365A
2K7 2K7
R363A R363A
C360A C360A
330K 330K R364A R364A
2K7 2K7
C383 C383 0.01uF 0.01uF
2
0.47uF 0.47uF
R361A R361A C358A C358A Q355A Q355A
Q354A Q354A BC557B BC557B
2
+ + BC547B BC547B
2K2 2K2
0.47uF 0.47uF R362A R362A C359A C359A
C357A C357A 56K 56K 1000pF 1000pF
4700pF 4700pF R372A R372A R373A R373A
47R 47R 47R 47R
MIC_VCC
R366A R366A
1K 1K
D354A D354A R368A R368A
Q357A Q357A
2
BC547B BC547B
IN4148 IN4148 1K 1K
Q356A Q356A
2
BC547B BC547B
R367A R367A C361A C361A
1M 1M 1.0uF 1.0uF
AGND
JUMP3 JUMP3
AGND
MIC_VCC
JUMP12.5MM JUMP12.5MM
JUMP2 JUMP2
MIC_VCC AGND
JUMP20MM JUMP20MM
+12V
U353 LM78L08 U353 LM78L08
R394 R394
3 1
VIN OUT
51R 51R
AGND
R359A R359A
3K9 3K9
RV591 RV591
50K 50K
A3 A1
B3 B1
4.7uF 4.7uF C588 C588
+ +
R369A R369A R589 R589
3K9 3K9 100K 100K
AGND
ECHO_VCC
U599 U599
1
VCC
47uF 47uF C597 C597
2
REF
+ +
3
AGND
4
DGND
5
CLK_O
R599 15K R599 15K
6
VCO
7
CC1
8
CC0
C596 C596 C595 C595
0.1uF 0.1uF 0.1uF 0.1uF
AGND DGND AGND AGND
JUMP11 JUMP11
JUMP5 JUMP5
AGND
JUMP12.5MM JUMP12.5MM JUMP7MM5 JUMP7MM5
JUMP6 JUMP6
DET JUMP4 JUMP4
JUMP12.5MM JUMP12.5MM
JUMP17.5MM JUMP17.5MM
9-4
MIC_VCC
ECHO_VCC
U352 LM78L05 U352 LM78L05
R395 R395
ECHO_VCC
3 1
VIN OUT
51R 51R
C380 C380 C599 C599
100uF 100uF
100uF 100uF
AGND AGND AGND AGND
R591 15K R591 15K
C587 C587
3900pF 3900pF
R592 R592 10K 10K C586 C586
AGND
C585 C585
560pF 560pF R593 R593 10K 10K
R594 R594 4K7 4K7 C584 10uF C584 10uF
R595 5K6 R595 5K6 C589 10uF C589 10uF
16
LPF1_IN
15
LPF1_OUT
R596 15K R596 15K
14
LPF2_OUT
C590 C590
560pF 560pF R597 10K R597 10K
13
LPF2_IN
R598 10K R598 10K
12
OP2_OUT
C593 0.082uF C593 0.082uF
11
OP2_IN
C594 0.082uF C594 0.082uF
10
OP1_IN
9
OP1_OUT
C592 C592
3300pF 3300pF
PT2399S PT2399S
AGND AGND
DGND
C598 C598
0.1uF 0.1uF
DET
+12V
+12V
PADS
GND
GND
AGND
4.7uF 4.7uF
DET
R590 R590
E_OUT 20K 20K
RV592 RV592
50K 50K
C591 C591
0.01uF 0.01uF
AGND
AGND