Philips FWD410/77 Service Manual page 29

CIRCUIT DIAGRAM
KEY_ IN T
AD_KE Y
RV 1 RV
A
4.7K 4.7K
BK 3.3V
TW O PART S
ON MA IN B OAR D
key
CN 601
20
19
18
17
16
15
14
B 13
12
11
10
9
8
7
6
5
4
3
2
1
CN20/1.0
VFD_SD A
C
VFD_SC K
VFD_ST B
MB 7
MB
USB601
4
4
3
USBP
3
2
USBM
2
D
1
USB5 V
1
USB2.0
8 - 2
1
Press TA601
V_( AD_KEY) =3.3/(1+RV/ R 601)
R 601 R 602 R 603 R 604 R 605
0 330 330 560
TA601 TA602 TA603 TA604
VOL + VOL - SOURCE STBY
TA609 TA610 TA611 TA612
TA608
VOL + VOL + VOL + VOL +
STBY
R 627 R 628 R 629 R 630 R 631
R 650
820 1K 2 1K 8 2K 2 3K
4K 7
LD601
R 606
Q602 560
R 611
RE D
STB_LE D
2SC1623
VOL_EN2
1K
R 612
VOL_EN1
47K
AC 1
-27V
R 624
10
+5V
D610
1N4148
C616
104
GND
AC 2
VR601
VOL_EN1
1
LED 1
2
VOL_EN2 LED 2
3
LED 3
4
VOL_DGA_3P
LED 4
R 613
5
OSC
R 618 10
6
100K
DOUT
7
DI N
R 616 10
8
CL K
9
ST B
10
R 617 10
K1
11
K2
R 622 R 623
10K 10K
15P 15P 15P
RB 601
GND 1
USBP
USBM
USB5 V
JK 601
5
RB5 /20
C603
US B BO AR D
TO MA IN B OAR D
104
1
2 3
2.20V
R 607 R 608
key
Q601
680 750
680
2SA733
TA606
TA605
TA607
STOP PLAY OPEN
R 609
AC 1
2.2
SN601
BK3. 3V
SENSOR
RB 603
RB3 /20_L
R HO363840-2003
IR VCC
R 615
GND
IR R 614 33 BK3. 3V
10
C605
C607
47P 100U/10V
10uF/16V
IC 601
33
SG 19/GR 10
32
C615
SG 18/GR 11
31
104
SG 17/GR 12
30
VE E
29
SG 16/GR 16
28
SG 15/GR 15
27
SG 14/KS 14
26
SG 13/KS 13
25
SG 12/KS 12
24
SG 11/KS 11
23
SG 10/KS 10
IC _PT 6315
5
MP3L
4 RB 602
FB 601 600
2 1 1
1
FB 602 600
3 2
2
6 3 3
3
7
MP3R
1 RB3 /20
TO MA IN BO AR D
MP3/PCB
2 3
8 - 2
4
DISPLAY 8 Digital
KLV000044- 0040
F2
8G 1G nc P1
NP
p13
C610
102
C608
-27V
C609
100U/35V
TA614 TA615 TA616
VOL + VOL + VOL +
R 632 R 633 R 634
4K 3 4K 3 4K 3
CN 604 RB3 /20_L
4
A
F1
p14
P15 NP
nc nc nc
nc
R 610
C611
2.2
102
B
C
D