Specifications - Philips TPM9.1LA Service Manual

EN 26 7. TPM9.1L LA
7.2 Power Supply
Refer to figure Figure 7-2
platform.
CN8101
Display power
CN8102
PFC
7.2.1 Power Supply Unit
All power supplies for TVs that are using a CCFL back lit LCD
panel are outside the repair policy. However when defective,
first check the main fuse of the power board. Always replace a
defective fuse with one with the correct specifications! This part
is available in the regular market.
Consult the Philips Service web portal for the order codes of the
boards.
The used control signals are:
• Stand-by
• Inverter "on/off"
• DIM (PWM)
The output voltages to the chassis are:
• +3V3-STANDBY (Stand-by mode only)
• +12V (on-mode)
• +Vsnd (+24V) (audio power) (on-mode)
• +24V (bolt-on power) (on-mode)
• Output to the display; in case of
- IPB: High voltage to the LCD panel
- PSL and PSLS (LED-driver outputs)
- PSDL (high frequent) AC-current.
7.2.2 Diversity
The diversity in power supply units is mainly determined by the
diversity in displays.
The following displays can be distinguished:
• CCFL/EEFL backlight: power board is conventional IPB
2012-Mar-30
Circuit Descriptions
for the power architecture of this
Ac-input + Mains filter
Figure 7-2 Power Architecture 3000 series
Platform power
BL-ON/OFF
DIM
12V
24V
5V
Low stby
power
AC IN
CN902
• LED backlight:
- side-view LED without scanning: PSL power board
- side-view LED with scanning: PSLS power board
- direct-view LED without 2D-dimming: PSL power board
- direct-view LED with 2D-dimming: PSDL power board.
PSL stands for Power Supply with integrated LED-drivers.
PSLS stands for a Power Supply with integrated LED-drivers
with added Scanning functionality (added microcontroller).
PSDL stands for a Power Supply for Direct-view LED backlight
with 2D-dimming.
7.2.3 Connector overview
Table 7-1 Connector overview
no.
Descr.
Pin
1
2
3
4
5
6
7
8
9
10
back to
div. table
LVDS AMP
AMP
24V
Platform
MTK5366
CN7001
1 power- PCB
Connector
3xPFL35x7 42PFL35x7
CN801 CN802 CN8503
to panel to panel to panel
3 3 13
L L ON/OFF
L L PDIM
L L +12V
- - +12V
- - GND
- - GND
- - GND
- - +24V
- - +24V
- - PS_ON
12V
19230_202_120309.eps
120309
CN9901
Mains inlet
2
L
N
-
-
-
-
-
-
-
-