Philips FWD186 Service Manual page 22

www.freeservicemanuals.info
CIRCUIT DIAGRAM: KEY PCB
C1 C4 C2511 B2 C2523
C2 D4 C2512 A2 C2524
C2501 D3 C2513 D2 C2525
C2502 C4 C2514 B1 C2526
C2503 B1 C2515 B1 C2527
C2504 B1 C2516 C2 C2528
C2505 C2 C2517 C2 C2529
C2506 C2 C2518 B4 C2530
C2507 C2 C2519 B4 C2531
C2508 C2 C2520 B4 C2532
C2509 D2 C2521 B2 C2533
C2510 C3 C2522 A2 C2534
1
RB903
AM Freq
7
6
AC1
5 AC2
4
GND
3
D
2 BK5V
R2508 10
1 ON/OFF
RB7/20
C2532 open
RB201
EN1
10 R2549 33
9 R2548 33 EN2
8
7 PMUTE
6
R2532 33 IR
5
4 DA 33 VFD_DA
R2533
3
CK R2534 VFD_CK
33
2 CE
R2535
33 VFD_CE
1
RB10/20
C2526 C2527 C2528
33P 33P 33P
C
Q2502
2S C945
SN251
SENSOR
VFD_DA
B
VFD_CK
VFD_CE
A
1
5-2
A2 C2535 B3 D2501 D2 IC251 B2 R2506
A2 C2536 B3 D2503 A2 JK5001 B4 R2507
A2 C2538 B3 D2504 A2 LD2501 A4 R2508
C1 C2539 B3 D2506 A2 LD2502 C4 R2509
C1 C2540 B3 D2507 A2 Q2501 D2 R2510
C1 C2541 B1 D2508 A2 Q2502 C1 R2511
D1 C5501 B4 D2509 A2 Q2503 C4 R2512
D1 C5502 B4 D2510 C3 R2501 D1 R2514
D1 C5503 B4 DP251 D3 R2502 D2 R2515
D1 C5504 B4 FB5501 B4 R2503 C4 R2516
B3 C5505 B4 FB5502 B4 R2504 C1 R2517
B3 C5506 B4 FB5503 B4 R2505 C1 R2518
2
R2539 0
R2540 0
ZD255 ZD_5V1
R2502 1k
Q2501 2SA733
R2501
LED 1 LED 2
270
C2531
D2501 1N4148
100U/16V
R2528 1K
R2513 4K7
BK5V
R2527 OPEN
XL2501
455K
10K
R2541
C2521
104
1
ZD253 2V5 OSC1 *
2
RES ET*
3
MODE *
4
R2520 470
REMOTE*
R2521 33 D 5
Din/ out*
6
R2514 10K
IC251
IIC SD A*
R2515 10K 7
V63111
IIC SC L*
R2522 33 C 8
CLK
E 9
R2523 33
STB
10
K1
11
K2
12
K3
13
K4
R2529 10k C2512 104
R2531 2.2K D2509 1N4148
R2543 2.2K D2506 1N4148
2.2K
R2544 D2507 1N4148
2.2K
R2545
TA25162 D2508 1N4148
2
C1 R2519 A2 R2532 D1 R2544
C1 R2520 B2 R2533 C1 R2545
D1 R2521 B2 R2534 C1 R2546
D2 R2522 B2 R2535 C1 R2548
C2 R2523 B2 R2536 D1 R2549
C2 R2524 D2 R2537 D1 R2550
C2 R2525 D2 R2538 D1 R2551
B2 R2526 D2 R2539 D1 R2552
B2 R2528 D1 R2540 D1 R2553
A2 R2529 A1 R2541 B2 R2554
A2 R2530 C2 R2542 B1 R2555
A2 R2531 A2 R2543 A2 RB1
3
DP251 VFD_
P/N:KLV0000490010
DISPL AY
C2501
R2524 1K
103
R2526 22K
R2525 1K
ZD254
5V6
C2517 27P
D2510
R2530 33
MIC_SW
1N4148
ECHO_OFF
C2510
104
39
Grid 6
38
Grid 7
37
Grid 8
36
Seg20/ Grid 9
35
Seg19/Gr ig10
34
VE E
33
VDD
32
Seg18/Gr id11
31
Seg17/Gr id12
30
Seg16/Gr id13
29
Seg 15/Gr id14
28
Seg 14/Gr id15
27
Seg 13/Gr id16
3
5-2
A2 RB2 C4 TA2505 A1 XL2501 C2
A2 RB201 D1 TA2506 A1 ZD251 B1
C4 RB3 D4 TA2507 A1 ZD252 B1
D1 RB5001 B4 TA2508 A1 ZD253 B2
D1 RB5501 A4 TA2509 A1 ZD254 C2
C4 RB701 C4 TA2510 A1 ZD255 D1
C4 SN251 C1 TA2511 A1
D4 SW701 C4 TA2512 A1
D4 TA2501 A1 TA2513 A1
D4 TA2502 A1 TA2514 A1
D4 TA2503 A1 TA2515 A1
D4 TA2504 A1 TA2516 A1
4
42P _FWD182
GND
GND
AGND
AGND
MIC_SW
MIC_SW
JP 1
BK5V
SW701A SW701B
PLAY REC PLAY REC
C2502
103
LD2502
DDB LED
2
FF/FW SW
Q2503
1 OSC VC IN
2SA733
OSC VC OUT
C1
EN2 VOL DWN
EN1 VOL UP
BK5V
FB5501
JK5001 5
4
FB5502 600
2
3
6
FB 5503 600
7
1
C5501 C5502 C5503
JK_ST_39
104 104 104
STANDBY PC B
CN5501 RB5501
5 5
GND
4
4
TA25161
3
TA25162 3
2
2
LED 2
1 1
LED 1
RB5/20 RB5/20
4
It`s Free
D
RB1
1
2
RB3
RB2/20
1
2
RB701
1
M+
2
PL SW 3
4
5
6
7
8
9
C
10
104
VR2502
DIGITAL VOL
600
RB5001
L 1
R 2 B
3
4
C5505 C5506
104 104
TA2516
POWER
LD2501
STANDBY
A