Service Modes And Fault Finding - Philips 4500 Series Service Manual

EN 14 5. TPS15.2A LA

5. Service Modes and Fault Finding

Index of this chapter:
5.1 Test Points
5.2 Service Modes
5.3 Stepwise Start-up
5.4 Software Upgrading
5.5 Fault Finding and Repair Tips
5.1 Test Points
As most signals are digital, it will be difficult to measure
waveforms with a standard oscilloscope.
Perform measurements under the following conditions:
• Service Default Mode.
• Video: Colour bar signal.
• Audio: 3 kHz left, 1 kHz right.
5.2 Service Modes
The Service Mode feature is split into five parts:
• Factory Mode.
• Customer Service Mode (CSM).
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
(Factory Mode).
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).
5.2.1 General
Next items are applicable to all Service Modes or are general.
Table 5-1 Factory mode overview
Default Value
Item Item value 40"
0 Brand Philips
1 Main-MCU Ver V1.01
2 Bootloader Ver V0.01
3 Sub-MCU Ver V0.01
4 EEPROM Ver V0.01
5 Date Jan 26 2015
6 Model Name 40PFA4500
7 Scaler MST6852LP-V5
8 Panel Type TPT400LA-J6PE1
9 Source Ypbpr
10 Auto Color Press GO
11 W/B Pattern Off
12 SSC Enable On
13 LVDS Span 35.0 KHz
14 LVDS Step 2.00 %
15 ADC YPbPr (SD)
16 Gain
17 Offset
18 Color Temp Standard
19 Scaler Gain
20 Offset
21 Burn In Off
2015-May-01
Service Modes and Fault Finding
5.2.2
50" 55"
Philips Philips
V1.00 V1.00
V0.01 V0.01
V0.01 V0.01
V0.01 V0.01
Feb 10 2015 Jan 27 2015
50PFA4500 55PFA4500
MST6852LP-V5 MST6852LP-V5
TPT500J1-HVN07 TPT550J1-DUYSHA
TV TV
Press GO Press GO
Off Off
On On
35.0 KHz 35.0 KHz
2.00 % 2.00 %
YPbPr (SD) YPbPr (SD)
Normal Cool
Off Off
back to
div.table
Software Identification, Version, and Cluster
The software ID and version will be shown in the main menu
display of CSM.
The screen will show: "AAAAB-X.YYY", where:
• AAAA is the chassis name: TPS152A x.yyy.
• B is the region indication: E = Europe, A = AP/China, U =
NAFTA, L = LATAM.
• X is the main version number: this is updated with a major
change of specification (incompatible with the previous
software version). Numbering will go from 1 - 99 and
AA - ZZ.
- If the main version number changes, the new version
number is written in the NVM.
- If the main version number changes, the default settings
are loaded.
• YYY is the sub version number: this is updated with a minor
change (backwards compatible with the previous
versions). Numbering will go from 000 - 999.
- If the sub version number changes, the new version
number is written in the NVM.
- If the NVM is refreshed, the software identification,
version, and cluster will also be written to NVM.
Contents of the Factory mode:
Purpose
• To perform extended alignments.
Specifications
• Displaying and or changing Panel ID information.
• 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 screen" press "1999",
directly followed by the "Back" button. Do not allow the
display to time out between entries while keying the
sequence.
After entering the Factory mode, the following items are
displayed, the Default value just for reference.
Description
Brand name
Main-MCU version
Bootloader version
Sub-MCU version
EEPROM version
Software release date
Model name
Scaler name
Display Panel model
Display current source
Press to set Auto color
W/B Pattern
SSC enable
LVDS Span
LVDS Step
ADC
Display R/G/B value
Display R/G/B value
Display Color Temp
Display R/G/B value
Display R/G/B value
Burn In