REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

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Wednesday, 30 January 2019

PHILIPS 32PHS5302, 32PHT5302, 43PFS5302 – LCD TV – SERVICE MODE, SOFTWARE UPDATE, POWER BOARD SCHEMATIC

Philips 32PHS5302, 32PHT5302, 43PFS5302 – LCD TV – service mode, software update, power board schematic


Philips32PHS5302/12, Philips32PHT5302/12, Philips43PFS5302/12, Philips43PFT5302/12, Philips49PFS5302/12
Chassis name: TPM17.2E LA
Platform: MTK5800
32PHx5301
 Energy Efficiency Class : A+
 Visible Screen Size : 80 cm / 32 inch
 On Mode Power Consumption (W) : 47 W
 Annual Energy Consumption (kWh) * : 68 kWh
 Standby Power Consumption (W) **: 0.30 W
 Display Resolution (Pixels) : 1366 x 768p
43PFx5301
 Energy Efficiency Class : A++
 Visible Screen Size : 108 cm / 43 inch
 On Mode Power Consumption (W) : 34 W
 Annual Energy Consumption (kWh) * : 50 kWh
 Standby Power Consumption (W) **: 0.30 W
 Display Resolution (Pixels) : 1920 x 1080p
49PFx5301
 Energy Efficiency Class : A++
 Visible Screen Size : 123 cm / 49 inch
 On Mode Power Consumption (W) : 37 W
Annual Energy Consumption (kWh) * : 54 kWh
 Standby Power Consumption (W) **: 0.30 W
Display Resolution (Pixels) : 1920 x 1080p
* Energy consumption kWh per year, based on the power consumption of the television operating 4 hours per day for 365 days. The actual energy consumption depends on how the television is used.
** When the TV is turned off with the remote control and no function is active.
Service Modes
The Service Mode feature is split into following parts: Service Alignment Mode (SAM).
Factory Mode.
Customer Service Mode (CSM).SAM and the Factory mode offer features, which can be used by the Service engineer to repair/align a TV set.
SAM and the Factory mode offer features, which can be used by the Service engineer to repair/align a TV set. Some features are: Make alignments (e.g. White Tone), reset the error buffer(SAM and Factory Mode). Display information (“SAM” indication in upper right corner of screen, error buffer, software version, operating hours,options and option codes, sub menus).
The CSM is a Service Mode that can be enabled by the consumer. The CSM displays diagnosis information, which the customer can forward to the dealer or call centre. In CSM mode, “CSM”, is displayed in the top right corner of the screen. The information provided in CSM and the purpose of CSM is to:
 Increase the home repair hit rate. Decrease the number of nuisance calls. Solved customers’ problem without home visit.
Note: For the new model range, a new remote control (RC) is used with some renamed buttons. This has an impact on the activation of the Service modes. For instance the old “MENU” button is now called “HOME” (or is indicated by a “house” icon).
Service Alignment Mode (SAM)
 To modify the NVM. To display/clear the error code buffer. 
To perform alignments.
Specifications
Operation hours counter (maximum five digits displayed).
Software version, error codes, and option settings display.
Error buffer clearing.
Option settings.
Software alignments (White Tone).
NVM Editor.
Set screen mode to full screen (all content is visible).
How to Activate SAM
To activate SAM, use one of the following methods:
Press the following key sequence on the remote control transmitter: “062596”, directly followed by the “INFO/OK” button. Do not allow the
display to time out between entries while keying the sequence.
Or via ComPair
After entering SAM, the following items are displayed, with “SAM” in the upper right corner of the screen to indicate that the television is in Service Alignment Mode.
How to Navigate In the SAM menu, select menu items with the UP/DOWN keys on the remote control transmitter. The selected item will be indicated. When not all menu items fit on the screen, use the UP/DOWN keys to display the next/previous menu items
 With the “LEFT/RIGHT” keys, it is possible to:
– (De) activate the selected menu item.
– (De) activate the selected sub menu.
– Change the value of the selected menu item.
 When you press the MENU button once while in top level SAM, the set will switch to the normal user menu (with the SAM mode still active in the background)
How to Store SAM Settings
To store the settings changed in SAM mode (except the RGB Align settings), leave the top level SAM menu by using the POWER button on the remote control transmitter or the television set. The mentioned exceptions must be stored separately via the STORE button.
How to Exit SAM
Use one of the following methods:
 Switch the set to STANDBY by pressing the mains button on the remote control transmitter or the television set. Via a standard RC-transmitter, key in “00” sequence.
Note: When the TV is switched “off” by a power interrupt while in SAM, the TV will show up in “normal operation mode” as soon as the power is supplied again. The error buffer will not be cleared.
Factory mode:
Displaying and or changing Panel ID information.
Displaying and or changing Tuner ID information.
Error buffer clearing.
Various software alignment settings.
Testpattern displaying.
Public Broadcasting Service password Reset.
etc
How to Activate the Factory mode
To activate the Factory mode, use the following method
Press the following key sequence on the remote control transmitter: from the “menu/home” press “1999”, directly followed by the “Back/Return” button. Do not allow the display to time out between entries while keying the sequence.
After entering the Factory mode, we can see many items displayed, use the UP/DOWN keys to display the next/previous menu items.
How to Exit the Factory mode
Use one of the following methods:
 Select EXIT_FACTORY from the menu and press the “OK” button.
Note: When the TV is switched “off” by a power interrupt, or normal switch to “stand-by” while in the factory mode, the TV will show up in “normal operation mode” as soon as the power is supplied again. The error buffer will not be cleared.
Software Upgrading, Error code and Panel Code
Software Upgrading
Ready for F/W Upgrade
1. Rename the software as “autorun.upg”
2. Prepare a USB memory.
3. Copy the software to USB flash disk(root directory).
Note the version of this F/W before you change the software file name.
1. Plug the USB memory on the USB port on the side I/O port of TV (Please connect to USB 2.0 port, not recommend USB3.0 port)
2. AC on (Power plug)
3. TV will upgrade automatically as detect the software
4. Press OK to start software upgrade.
5. Upgrade in progress.
Check the SW version
1. After burning software, TV will restart
2. Press “Menu+1999+back”, enter Factory mode to check if the software version is correct
Caution: Please make sure that software upgrade is finished before unplug the USB and AC power.
Error Code
Error codes are required to indicate failures in the TV set. In principle a unique error code is available for every:
 Activated (SW) protection.
 Failing I2C device.
 General I2C error.
The last five errors, stored in the NVM, are shown in the Service menu’s. This is called the error buffer.
The error code buffer contains all errors detected since the last time the buffer was erased. The buffer is written from left to right. When an error occurs that is not yet in the error code buffer, it is displayed at the left side and all other errors shift one position to the right.
An error will be added to the buffer if this error differs from any error in the buffer. The last found error is displayed on the left.
An error with a designated error code never leads to a deadlock situation. It must always be diagnosable (e.g. error buffer via OSD or blinking LED.
How to Read the Error Buffer
 On screen via the SAM/CSM (if you have a picture).
Example:
– ERROR: 000 000 000 000 000: No errors detected
– ERROR: 013 000 000 000 000: Error code 13 is the last and only detected error
– ERROR: 034 013 000 000 000: Error code 13 was detected first and error code 34 is the last detected (newest) error
 Via the blinking LED procedure (when you have no picture)
Error codes overview
In this chassis only “layer 2” error codes are available and point to problems on the SSB. They are triggered by LED blinking when CSM is activated. Only the following layer 2 errors are defined:
How to Clear the Error Buffer
The error code buffer is cleared in the following cases:
 By using the CLEAR command in the SAM menu
 By using the CLEAR command in the Factory mode:
 By using the following key sequence on the remote control transmitter: “062599” directly followed by the OK button.
 If the contents of the error buffer have not changed for 50 hours, the error buffer resets automatically.
Note: If you exit SAM by disconnecting the mains from the television set, the error buffer is not reset.
Panel Code
Press the following key sequence on a standard RC transmitter: “062598” directly followed by MENU and “xxx”, where “xxx” is a 3 digit decimal value of the panel type: see column “Display Code” in below tab. After resetting the Display Code, restart the set immediately.
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:
 Stand-by
 Lamp “on/off”
 DIM (PWM) (not for PSDL)
In this manual, no detailed information is available because of design protection issues.
 +5.2V output (standby mode) for 715G7734P
 +12V output (standby mode) for 715G7574P
 +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
A 715G7734 PSU schematic

Led driver schematic
A 715G7574 PSU(For (For 43”/49” 5302 Series)
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):
 STB_PWR, permanent voltage for the Stand-by Power system and WIFI
 ++3V3SB,voltage for scaler,IR/LED reciver,Key board
 +12V, input from the power supply for the panel common(active mode)
 LBN power, input from the power supply for LNB supply
 LDO_PWR,DVDD3V3, voltage for EMMC when TV on
 VCCK, voltage for DDR when TV on
 AVD3V3,AVDD1V0, supply voltage for scaler MT5593
 +5V_SW, input intermediate supply voltage for USB Power/SPDIF/CI
 +3V3_TUNER, supply voltage for tuner
 DVDD3V3, voltage for IC MT5800/EMMC when TV on
PVDD from the power +12V_AU for the AUDIO AMP
+1.2V_T2, +3.3VA_T2 voltage for Demodulator IC channel decoder.Wi-Fi_VCC,voltage for WIFI
+1.8V, voltage for EMMC when TV on
Wi-Fi_VCC, voltage for WIFI
Video and Audio Processing – MT5800WUEJBGA
The MT5800WUEJ BGA-597 is the main audio and videoprocessor (or System-on-Chip)for this platform. It has the following features:
 Worldwide multi-standard analog TV demodulator
 DVB-T/DVB-C demodulators
 Powerful quad core CPU
 3D graphic support OpenGL ES 2.0
 A muti-standard video decoder
 A transport de-multiplexer
 Rich format audio codec
 H.264 encoder
 2D/3D converter
 HDMI 1.4a receiver with 3D support
 Local dimming (LED backlight)
 Ethernet MAC+PHY
 MHL 2.0 & Standby Charging
 Panel overdrive control
 Two-link LVDS, mini-LVDS, V-by-one, EPI
The MediaTek MT5800WUEJ 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 mini-LVDS transmitter, a V-by-One transmitter, an EPI transmitter, and an NTSC/PAL/SECAM TV decoder with a 3D combfilter (NTSC/PAL). The MT5800WUEJ enables consumer electronics manufacturers to build high quality, low cost and feature-rich DTV.World-Leading Audio/Video Technology.
The MT5800WUEJ supports FullDMPEG1/2/4/H.264/HEVC(H.265)/MVC/DiviX/Xvid/VC1/RM/AVS/AVS+/VP8/VP9 video decoder standards, and JPEG. The MT5800WUEJ 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 MT5800WUEJ family has built-in high resolution and high-quality audio codec.Rich Features for High Value Products.The MT5800WUEJ family enables true singlechip experience. It integrates high-quality HDMI1.4a,high speed VGA ADC, two-link LVDS, mini-LVDS , V-by-One, EPI, USB2.0 receiver, Ethernet MAC+PHY, quad core CPU and 512K bytes L2 cache, TCON, panel overdrive, OpenGL ES 1.1/2.0, OpenVG 1.1 compliant 3D graphic engine, and /DVB-T/DVB-C demodulators.WW Common Platform Capability: The MT5800WUEJ family supports DVB-T, DVB-C 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.