Philips 43PUH6101/88 Service Manual page 33

7.2 Power Supply
Refer to figure Figure 7-2
platform.
CN8101(FOR 715G6973）
CN8601(FOR 715G7350)
CN8602(FOR 715G7700)
Display power
PFC
7.2.1 Power Supply Unit
All power supplies are a black box for Service. When defective,
a new board must be ordered and the defective one must be
returned, unless the main fuse of the board is broken. 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.
Important delta's with the TPL16.1E LA classis platform are:
• New power architecture for LED backlight
• "Boost"-signal is now a PWM-signal + continuous variable.
The control signals are:
• PS-ON
• Lamp "on/off"
• DIM (PWM) (not for PSDL)
In this manual, no detailed information is available because of
design protection issues.
The output voltages to the chassis are:
• +3.65V output for 715G6937P(standby mode)
• +8.5V output for 715G7350P(standby mode)
• +12 output (on-mode)
• +12V_audio (audio AMP power)
for the power architecture of this
Ac-input + Mains filter
Figure 7-2 Power Architecture
Connector
Number CN9101 CN8602
Description to SSB to panel
Pin 16 12
1 DIM +VLED
2 BL_ON/OFF +VLED
3 PS_ON -VLED1
Circuit Descriptions
Platform power
ON/OFF
DIM
PS_On
12V
12V_A
Low stby
power
AC IN
CN9901
• 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 panel is conventional IPB
• LED backlight:
- side-view LED without scanning: PSL power panel
- side-view LED with scanning: PSLS power panel
- direct-view LED without 2D-dimming: PSL power panel
- direct-view LED with 2D-dimming: PSDL power panel.
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
CN9101 CN8603
to SSB to panel
16 6
DIM VLED+
BL_ON/OFF VLED+
PS_ON n.c.
back to
div.table
TPL16.1E LA
AMP
12V
Platform
MT5596L
CN701
1 power- PCB
CN9101 CN8602
to SSB to panel
16 12
DIM +VLED1
ON/OFF +VLED1
PS_ON -VLED1
7. EN 33
LVDS AMP
12V
20110_201.eps
2016-Sep-23