Philips QV15.1E LA Service Manual page 54

EN 54 7. QV15.1E LA
7.2 Power Supply
Refer to figure Figure 7-3
platform.
CN9201 ( FOR 43'' 715G6679)
CN8101 ( FOR 49'' & 55''715G6973)
CN8101 ( FOR 65'' 715G6887)
CN9203 ( FOR 65'' 8700 715G7215)
CN8101 ( FOR 55'' 715G7218)
CN8102 ( FOR 55'' 715G7218)
PFC
7.2.1 Power Supply Unit
All power supplies are a black box for Service. When defective,
a new panel must be ordered and the defective one must be
returned, unless the main fuse of the panel 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
panels.
Important delta's with the QV15.1E 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
• Panel "on/off"
• Panel 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:
• 3.5V (Stand-by mode for 715G6679-43'')
• 3.7 V (Stand-by mode for 715G6973-49'',55'')
• 3.6V (Stand-by mode for 715G6887-65'')
• +12V (on-mode for all mode)
• +12V_audio(audio power) (on-mode for all mode)
• +24V (VLED output) (on-mode for 715G6679-43'')
2015-Dec-18
Circuit Descriptions
for the power architecture of this
Ac-input + Mains filter
LED DRIVER
715G7111P for 43'', 49'', 55''
715G7212P for 65'' 8700
Outsourcing for 65'' 7120
Figure 7-3 Power Architecture
Platform power
Panel Dim
Panel On/Off
PS_ON
12V
12V_AUDIO
12V_AL
Low stby
power
AC IN
To panel
• +40V (VLED output) (on-mode for 715G6973-49'',55'')
• +36V (VLED output) (on-mode for 715G6887-65'')
• 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.
back to
div. table
Ambilight
AUDIO AMP DISPLAY
12V 12V
Platform
Marvell BG2
+NT72324
CN1190
UHD Panel
12V
19810 201.eps