Philips 32PHT4002-40 – how to enter the factory mode, how to update the software, Alignments, how to select the panel code, SMPS (Power supply) Schematic

 

Factory Mode
Press the following key sequence on a standard RC transmitter: “1999” directly followed by MENU

Alignments

Software Upgrading and Panel Code
Software Upgrading
Operations and procedure of software upgrading:
1). Changed the file name to "MERGE.bin", then stored software in the FAT32 format blank U disk.
2). Insert USB flash disk into the USB upgrade port, upgrade the software according to the following the operating instructions:
Select AIR or DTV signal source, press Menu key to pop up the main menu, then choose.

Select CHANNEL, press right key or OK key to enter.

Select Software Update(USB), press right key or OK key to enter.

Software update menu will pop up when press confirm key, then select “Yes” to confirm:

The process of software updating:

Method 2:  Keep pressing VOL+ and CH+ keys on the machine panel, power on the machine, the standby light flashes quickly after about 5 seconds, standby light extinguish and turn into lighting after about a minute, means that the upgrade is completed.
Notice
* When the machine Upgrading (U disk light flash), do not remove U disk or switch off the power, otherwise it will
destroy the software and lead can not upgrade.
* The machine must be power off when inserted or pulled out U disk, to avoid U disk or damage the machine.

Connections overview

Panel Code
Press the following key sequence on a standard RC transmitter: “1999” directly followed by MENU, can see the panel type information from factory menu, see the Panel PN from the configuration table

CTN_ALT BOM#	Panel Type	Panel PN
32PHT4002/40	K320WD92-KA240B2	7422-320HKK-335B9021-

Power Supply Unit (SMPS)
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 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)
 No detailed information is available because of design protection issues.
* +12 output (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 microcontroller).
PSDL stands for a Power Supply for Direct-view LED backlight with 2D-dimming.

DC to DC Converters
The on-board DC/DC converters deliver the following voltages(depending on set execution):
* +5V-SB, permanent voltage for the Stand-by Power system
* +3V3-STANDBY,voltage for IR/Key board
* +12V, input from the power supply for the panel common(active mode)
* +3V3-EMMC, +V-EMMC-IO, voltage for EMMC when TV on
* +1V5-DDR, +VREF-A2-DQ,, +VREF-A2-CA, voltage for DDR
* TUNER_3V3, supply voltage for tuner
* +5V-SW, input intermediate supply voltage for USB Power
* +12V-AUDIO1 for the AUDIO AMP
* +3.3VA_T2, +1.2V_T2 voltage for Demodulator IC channel decoder.

Power layout SSB

Video and Audio Processing - MSD3463
The MSD3463 is the main audio and video processor (or System-on-Chip) for this platform. It has the following features:
1. Worldwide multi-standard analog TV demodulator
2.PAL/SECAM/DVB-T/DVB-T2 /DVB-C demodulators
3.1920*1080@60Hz direct drive
4. Powerful CPU core
5. A transport de-multiplexer
7. A muti-standard video decoder
8. Rich format audio codec
10. HDMI1.4 receiver
11. MHL input
12. 2D converter
14. PWM dimming (LED backlight)
15. Two-link LVDS,
1 OVERVIEW
The MediaTek MSD3463family consists of a DTV front-end demodulator, a backend decoder and a TV controller and offers high integration for advanced applications. It integrates a transport de-multiplexer, a high definition video decoder, an audio decoder, a -link
LVDS transmitter, and a NTSC/PAL/SECAM TV decoder .The MSD3463 enables consumer electronics manufacturers to build high quality, low cost and feature-rich DTV.
World-Leading Audio/Video Technology: The MSD3463 supports Full MPEG2/4/H.264 video decoder standards, and JPEG. The MSD3463 also supports MediaTek MDDiTM de-interlace solution which can reach very smooth picture quality for motions.
The special color processing technology provides a natural, deep colors and true studio quality video. Moreover, theMSD3463 family has built-in high resolution and high-quality audio codec.
Rich Features for High Value Products: The MSD3463 family enables true single-chip experience. It integrates high-quality HDMI1.4, high speed VGA ADC, a-link LVDS, USB2.0 receiver , and ATSC/DVB-T/DVBC/DTMB/ISDB-T demodulators.
All New FHD@60Hz Experience: The MSD346 family provides consumers with FHD 60Hz direct drive.
WW Common Platform Capability: The MSD3463 family supports ATSC, DVB-T, DVB-C, and ISDB-T demodulation functions. It
reserves transport stream inputs for external demodulators for other countries or areas. TV maker can easily port the same UI to worldwide TV models. First-class adjacent and co-channel rejection capability grants excellent reception. Professional error- oncealment provides stable, smooth and mosaic-free video quality.

Power supply schematic diagram