Philips 43PUT6002 LCD TV how to enter the service mode, main power supply and amplifier schematic, how to upgrade the software

 

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

Software Upgrading, Panel PN
Software Upgrading

 Method 1: The following update is for .bin file.
1. Rename the file to “MstarUpgrade.bin”
2. Prepare a USB memory.
3. Copy the software to USB flash disk(root directory).
4 Press [menu+1999 ],enter the factory menu, Choose [main Updates], then press

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

6. When the TV software is updated, the TV will turn on again automatically. Remove your USB flash drive.

Method 2
Copy the software to USB flash disk ,Keep pressing VOL+ key 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 3 minutes, means that the upgrade is
completed.
Caution：
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 cannot upgrade.
The machine must be power off when inserted or pulled out U disk, to avoid U disk or damage the machine.

Panel PN
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.

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 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/DC Converters
The on-board DC/DC converters deliver the following voltages(depending on set execution):
+5V, 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)
+12V-AUDIO1 for the AUDIO AMP
+1V8(AS1117-18))-EMMC, +V-EMMC-IO, voltage for EMMC when TV on
+1V5-DDR, voltage for DDR in main chip
TUNER_3V3(AS1117-33), supply voltage for tuner
+5V-SW, input intermediate supply voltage for USB Power,-WIFI,voltage for WIFI
+1.2VA_T2(MSH61110A1), +1.2V_T2 voltage for DTMB.
+1V2A(MSH61110A), supply voltage for MSD6A638

Video and Audio Processing - MSD6A638
The MSD6A638 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. ATSC/DVB-T/DVB-C/DTMB/ISDB-T demodulators
3. UHD@60Hz direct drive
4. Powerful CPU core
5. A transport de-multiplexer
6. A muti-standard video decoder (including VP9)
7. Rich format audio codec
8. H.264 & VP8 encoder
9. HDMI 2.0 receiver with 3D support
10. MHL 3.0 & Standby Charging
11. Ethernet MAC+PHY
12. Local dimming (LED backlight)
13. Two-link LVDS, V-by-one
OVERVIEW
The MediaTek MSD6A638 family 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 two-link LVDS transmitter, a V-by-One transmitter, and a NTSC/PAL/SECAM TV decoder with a 3D comb filter (NTSC/PAL). The MSD6A638 enables consumer electronics manufacturers to build high quality, low cost and feature-rich DTV.
World-Leading Audio/Video Technology: The MSD6A638 supports Full-HD MPEG1/2/4/h.264/DiviX/VC1/RM/AVS/VP6/VP8 and HD .264/AVC, 265/HEVC, VP9 video decoder standards, and JPEG. The MSD6A638 also supports MediaTek MDDiTM de-interlace
solution which can reach very smooth picture quality for motions. A 3D comb filter added to the TV decoder recovers great details for still pictures. The special color processing technology provides a natural, deep colors and true studio quality video. Moreover, the MSD6A638 family has built-in high resolution and high-quality audio codec.
Rich Features for High Value Products: The MSD6A638 family enables true single-chip experience. It integrates high-quality HDMI2.0, high speed VGA ADC, two-link LVDS, V-by-One,USB2.0/3.0 receiver, Ethernet MAC+PHY, Quad core CPU and 512K bytes L2 cache,
OpenGL ES 1.1/2.0/3.0/3.1, OpenCL 1/0/1.1/1.2 compliant 3D graphic engine, and ATSC/DVB-T/DVBC/DTMB/ISDB-T demodulators.
All New UHD@60Hz Experience: The MSD6A638 family provides consumers with UHD 60Hz direct drive.
WW Common Platform Capability: The MSD6A638 family supports ATSC, DVB-T, DVB-C,DTMB 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- concealment provides stable, smooth and mosaic-free video quality.

Power board circuit diagram

Audio amplifier circuit diagram