Monday, April 02, 2018

Philips 22PFT5403/56, 24PFT4233/98 – How to enter the service mode – SMPS schematic, firmware update


Applicable to - Philips22PFT5403/98, 22PFT5403S/98, 24PFT4233S/98, 24PFT4233/98
TPS18.1A LA- Chassis
Video formats
Resolution — Refresh rate:
• 480i - 60 Hz
• 480p - 60 Hz
•576i - 50 Hz
• 576p - 50 Hz
• 720i - 50 Hz, 60 Hz
• 1080i - 50 Hz, 60 Hz
• 1080p - 50 Hz, 60 Hz
TV system: NTSC, SECAM, PAL, DVB-T/T2
Video Playback: NTSC, SECAM, PAL
Computer formats
Resolution — Refresh rate:
• 640 x 480 - 60 Hz
• 800 x 600 - 60 Hz
• 1024 x 768 - 60 Hz
• 1360 x 768 - 60 Hz
• 1920 x 1080 - 60 Hz
Power supply
• Mains: 110-240V, 50-60Hz
• Standby power consumption: ≤0.5W
Power consumption:
– 22PFT54x3: 42W
– 24PFT4233: 36W
Service Modes
The Service Mode feature is split into following parts:
 Factory Mode.
 Customer Service Mode (CSM).
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).
Display information.
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. 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
[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)]
Factory mode:
Purpose
 To perform extended alignments.
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
 Select EXIT 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.
715G7735 PSU (For 24” 4233 Series) -  SMPS schematic
Schematic Notes
• All resistor values are in ohms, and the value multiplier is often used to indicate the decimal point location (e.g. 2K2 indicates 2.2 kΩ).
• Resistor values with no multiplier may be indicated with either an “E” or an “R” (e.g. 220E or 220R indicates 220Ω)

• All capacitor values are given in micro-farads (µ = x10-6), nano-farads (n = x10-9), or pico-farads (p = x10-12).
• Capacitor values may also use the value multiplier as the decimal point indication (e.g. 2p2 indicates 2.2 pF).
• An “asterisk” (*) indicates component usage varies.
Customer Service Mode (CSM)
Purpose
The call centre can instruct the customer (by telephone) to enter CSM in order to identify the status of the set. This helps the call centre to diagnose problems and failures in the TV set before making a service call.
The CSM is a read-only mode, therefore, modifications are not possible in this mode.
How to Activate CSM
To activate CSM, press the following key sequence on a standard remote control transmitter: “Menu/Home +456987+Back” (do not allow the display to time out between entries while keying the sequence). 
After entering the Customer Service Mode, the following items are displayed. 
Use the UP/DOWN keys to display the next/previous menu items.
Note: Activation of the CSM is only possible if there is no (user) menu on the screen.
How to Navigate
By means of the “CURSOR-DOWN/UP” knob (or the scroll wheel) on the RC-transmitter can be navigated through the menus.
How to Exit CSM
To exit CSM, use one of the following methods.
Press the MENU/HOME button on the remote control transmitter.Press the POWER button on the remote control transmitter.Press the POWER button on the television set.
Software Upgrading
1. Prepare a USB memory (File format: FLAT, Size: 1G~8G).
2. Copy the software to USB flash disk (root directory).
3. Switch off the TV and Insert the USB memory stick that contains the software update files in the TV’s USB 2.0 port.
Note the version of this F/W before you change the software file name.
1. Power off then power on the TV. The TV will detect the USB memory stick automatically. Then a window jumps out.
2. Press “Confirm” to start the update.
3. When the TV software is updated, reboot the TV. Remove your USB flash drive.
4. We can enter in CSM mode to check the current software version.
Caution: Please make sure that software upgrade is finished before unplug the USB and AC power.
Check the SW version
1. After burning software, restart the TV
2. Press “Menu/Home +456987+Back”, enter Customer Service Mode to check if the software version is correct.