Power Supply - Philips 32PFL5007G/77 Service Manual

7.2

Power Supply

7.2.1 Connector Overview, Block Diagram and Fault Finding
Table 7-1 Connector overview 32PFL5007G sets
no. 1308
Descr. Mains
Pin CN1
1 N
2 L
3 -
4 -
5 -
6 -
7 -
8 -
9 -
10 -
11 -
12 -
13 -
14 -
15 -
Line
filter
ACin
198 V - 264 V
90 V - 276 V
The PSU delivers the following voltages to the chassis:
• V : 3.3 V +/- 3%.
STB
• V : 12.3 V +/- 5%.
SSB
• V : 12.3 V (11 V - 14 V).
SND
1M95
PSU to SSB
CN4
3V3stdby
Standby
GND1
GND1
+12V
+12V
+Vsnd
+Vsnd
GND_SND
GND_SND
BL-ON
BL-DIM (Vsync)
BL-I-CTRL
POK
-
PFC Resonant
converter
Diode
bridge
STBY
Figure 7-5 Block diagram
Circuit Descriptions
Connector
1M99 1M11
PSU to SSB Ambilight/Bolt-on
CN5 CN6
GND_AL GND_AL
+12V_AL +12V_AL
GND_AL GND_AL
+12V_AL +12V_AL
GND1 -
+12V -
GND1 -
+12V -
- -
- -
- -
- -
- -
- -
- -
V
STB
L12M1.1L LA 7.
1M09
Bolt-on
CN7
GND_BO
+12V_BO
GND_BO
+12V_BO
GND_BO
+12V_BO
-
-
-
-
-
-
-
-
-
BL Driver 1
BL Driver 2
V
SSB
Regulator
V
SND
19132_012_111221.eps
EN 33
Back Light
111221
2012-Aug-17