Philips 40PFG5100-77 LED LCD TV –SMPS circuit diagram, Pin voltages - Chassis TPM15.4L

Philips 32PFG5100, Philips 40PFG5100 and Philips 48PFG5100 - SMPS and Back-light inverter schematic  - Power Supply Unit A715G6934 Schematic and connector voltages.

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 TPM15.4L LA chassis platform are:
* New power architecture for LED back-light
* “Boost”-signal is now a PWM-signal + continuous variable.
The control signals are:
> Stand-by
> Lamp “on/off”
> Backlight adjust (DIM) (not for PSDL)
In this manual, no detailed information is available because of design protection issues.
The output voltages to the chassis are:
> +8.5V output (standby)
> +12V (on-mode)
> +12V_audio (audio AMP power)
> 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.

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 micro-controller).
PSDL stands for a Power Supply for Direct-view LED back-light with 2D-dimming.

Connector voltages

DC/DC Converters

The on-board DC/DC converters deliver the following voltages (depending on set execution):

* +5V-STANDBY, permanent voltage for the Stand-by controller, LED/IR receiver and controls.

* +12V, input from the power supply for the panel common(active mode)

* +12V, input from the power supply for the AMP

* +1V2, from the power supply for the scaler IC MT5580

* +1V5, supply voltage for DDR2 ( diagram B03B)

* +3V3, general supply voltage.

* +3V3-TUN, supply voltage for tuner

* +5V-USB, input intermediate supply voltage for the USB Power

* +3V3, from the power supply for the scaler IC MT5580

* +3V3-DVBS, clean voltage for Demodulator IC channel decoder

A715G6550 SMPS circuit diagram [Schematic] 

LED Driver schematic

Click on the schematics to magnify

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