Power Supply - Philips Q552.2E Service Manual

7.2

Power Supply

7.2.1 Power Supply Unit Blockbuster sets
Where detailed information for power supply boards is given in
this manual, the boards should be repaired where possible.
In this manual, detailed board schematics are given for Delta
power supply units (refer to schematics 10-1,
where for FSP- and LGIT power supply units the functional
block diagrams are given (refer to
Figure 7-5).
In future releases of the manual, more schematics will be
published.
7.2.2 Connector overview Blockbuster (series xxPFL6600/xx)
Table 7-1 Connector overview 32" sets
no. 1308
Descr. Mains
Pin CN1
1 N
2 L
3 -
4 -
5 -
6 -
7 -
8 -
9 -
10 -
11 -
12 -
13 -
14 -
15 -
7.2.3 Functional block diagram FSP Supply Units FPS096-4FS01(REV01) & FSP110-4FS01B
Mains Filter and Rectifier
AC INPUT EMI
FUSE
FILTER
Figure 7-3 Functional block diagram FSP supply units FPS096-4FS01(REV01) & FSP110-4FS01B
10-2 and 10-3),
Figure 7-3 , Figure 7-4
Connector
1316 1M95
to display to SSB
CN2 CN4
A2 +3V3SB
n.c. Standby
pin 5 GND1
n.c. GND1
pin 3 +12V3
n.c. +12V3
OCD +Vsnd
n.c. GND1
A1 BL-ON-OFF
n.c. BL-DIM1
pin 13 BL-I-CTRL
n.c. POK
pin 11 +24V
n.c. GND1
GND1 -
Mains Converter
MAINS
RECTIFIER
+
Mains CAP.
PWM DRIVER
CIRCUIT
STB ON
Standby Power Converter
POWER
TRANSFORMER
PWM DRIVER
SWITCH
Brown In/Out sense
CIRCUIT
Circuit Descriptions
Table 7-2 Connector overview 37" sets
no.
Descr.
Pin
1
2
3
4
5
and
6
7
8
9
10
11
12
13
14
15
Table 7-3 Connector overview 40" sets
no.
Descr.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
Output Rectifier and filter
RECTIFIER
POWER
&
TRANSFORMER
FILTER
RECTIFIER
&
FILTER
RECTIFIER
&
FILTER
Feedback Circuit
CONSTANT
VOLTAGE
CIRCUIT
OVP DETECT
STB
STB ON
RECTIFIER
&
FILTER
CONSTANT
VOLTAGE
CIRCUIT
back to
div. table
Q552.2E LA
Connector
1308 1316
Mains to display
CN1 CN2
N Anode_R
L n.c.
- R5 Cathode
- R4 Cathode
- R3 Cathode
- R2 Cathode
- R1 Cathode
- L1 Cathode
- L2 Cathode
- L3 Cathode
- L4 Cathode
- L5 Cathode
- n.c.
- Anode_L
- -
Connector
1308 1316
Mains to display
CN1 CN2
N Anode 1+
L n.c.
- Cathode 1-
- n.c.
- Anode 2+
- n.c.
- Cathode 2-
- n.c.
- Anode 3+
- n.c.
- Cathode 3-
- n.c.
Vsnd
24V
Val
12Vssb
BL_ON
LED Controller × 2
BOOST
CONVERTER
LED DRIVER
BL_DIM
CONSTANT
CURRENT
CIRCUIT
BL_I_CTL
3V3stdby
Backlight
Current
Controller
7. EN 53
1M95
to SSB
CN4
+3V3stdby
Standby
GND1
GND1
+12V
+12V
+Vsnd (+24V)
GND_SND
BL-ON-OFF
BL-DIM1 (Vsync)
BL-I-CTRL
POK
+24V (AL2_DVBS)
GND1
-
1M95
to SSB
CN4
+3V3stdby
Standby
GND1
GND1
+12V
+12V
+Vsnd (+24V)
GND_SND
BL-ON-OFF
BL-DIM1 (Vsync)
BL-I-CTRL
POK
BL_ON_OFF
AL_LED Output
AR_LED Output
+ CAP.
POK
19103_002_110531.eps
110601
2011-Jun-01