Front Ir / Led Panel - Philips LC4.2E Service Manual

Circuit Diagrams and PWB Layouts

Front IR / LED Panel

1 2
FRONT IR / LED
A
I541
I542
B +3V3_STBY
1540
F540 LIGHT-SENDOR-SDM
6
F541
5
F542 IR
4
F543 LED-SEL
3
F544
2
F545 PC-TV-LED
C
1
+3V3_STBY
RES
I543
D 7544
4540
3139 123 5888.1
1 2
LC4.2E AA 7.
3 4
+3V3_STBY
7540
7541
BC857B BC847B
I540
6540-2 6540-1
SPR-325MVW
+3V3_STBY
7542
BC847B
3542
220R
6541
I544 3
VS
3V3
1
OUT
3V3
2
GND
+3V3_STBY 2540
C
TSOP1836LL3V
16V 100u
6542
D
RES
E_14490_042.eps
190404
3 4
56
Layout Front IR / LED Panel (Top Side)
1540 A1
1540 B1
2540 C4
2541 D2
3540 A3
3542 B4
3544 C2
3545 D1
3546 D3
3547 D3
3548 D3
4540 D2
4541 C3
4562 D3
A
6540-1 B3
6540-2 B3
6541 C4
6542 D3
7540 A3
7541 A3
7542 B3
7543 D3
7544 D2
F540 C1
F541 C1
F542 C1
B
F543 C1
F544 C1
F545 C1
I540 B3
I541 B2
I542 B2
I543 D2
I544 C4
3139 123 5888.1
Layout Front IR / LED Panel (Bottom Side)
2541 A1 3544 A1
3540 A1 3545 A1
3542 A1 3546 A1
3139 123 5888.1
2540 A1 6540 A1 6541 A1
3547 A1 4541 A1 6542 A1 7542 A1
3548 A1 4542 A1 7540 A1 7544 A1
4540 A1 4562 A1 7541 A1
7543 A1
E_14490_045.eps
190404
E_14490_046.eps
190404