Philips PB52.1HU LA Service Manual page 71

Circuit Diagrams and PWB Layouts
SSB: Supply
1B10 D3 1B22 A4 1B25 B4 1B29 B6 2B22 A5
1B20 A4 1B23 A4 1B26 B4 2B20 A5 2B23 B5
1B21 A4 1B24 B4 1B28 A3 2B21 A5 2B24 B5
1 2
SUPPLY
B09A
A
TO
DISPLAY
SUPPLY
B
C
TO
AMBILIGHT
D
3139 123 6309.3
1 2
PB52.1HU LA
2B25 B5 2B54 D5 3B21 A6 3B26 B6 3B58 D6 5B11 D4
2B26 B5 2B56 D5 3B22 A6 3B56 C6 3B59 D6 5B12 D4
2B27 A7 3B20 A6 3B23 B6 3B57 C6 5B10 C4 5B13 D4
3 4
FM20
FM21
1B28
1
FM22
2
3
FB28
4
5
6
FM23
7
8
FM24
FM25
FM26
1B10
1
2
3
4
5
3 4
7. 71
5B14 D4 9B11 D6 9B17 D4 FB28 A4 FB42 D6 FM20 A4
9B06 B6 9B15 C4 9B18 D4 FB40 D5 FB43 D6 FM21 A4
9B10 D6 9B16 C4 9B19 D4 FB41 D5 FB44 D6 FM22 A4
5 6
1B20 2B20 1n0
3B20 100R
1B21 2B21
IM20
10n
3B21 100R
1B22
2B22
10n 3B22 100R
1B23
2B23
10n
3B26 100R
1B24 2B24
FM28
10n 3B23 100R
1B25 2B25
10n
9B06
1B26 2B26
1B29
100p
3.0A T
T 3A 452
+5V-ON
9B15
5B10
120R
9B16
5B11
120R
FB40
9B17 3B58
5B12
FB41 FB42
3B59
FB43
120R
9B18 FB44
5B13
120R
9B19
5B14
120R
5 6
FM23 B4 FM26 B4 IB41 D7
FM24 B4 FM28 B6 IM20 A6
FM25 B4 IB40 D7
7 8
BACKLIGHT-OUT
2B27
1u0
POWER-OK-DISPLAY
LAMP-ON-OUT
BACKLIGHT-BOOST
STANDBYn
+5V-STANDBY
+12V
IB40
47R SCL-AMBI
IB41
47R
SDA-AMBI
7 8
9
B09A
A
B
C
D
I_17501_026.eps
210708
9