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EN 16
5.
TPR14.1A 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
Item Item value
0
Brand
1
Main-MCU Ver
2
Bootloader Ver
3
Sub-MCU Ver
4
EEPROM Ver
5
Date
6
ModelName
7
Scaler
8
Panel Type
9
Source
10
Auto Color
11
SSC
12
Enable
13
Step
14
Top
15
ADC
16
Gain
17
Offset
18
ColorTemp
20
Scaler
21
Gain
22
Offset
2014-Jul-18
Service Modes and Fault Finding
Default value
32"
42"
48"
Ebony
V1.06P
V1.04
V1.04
V0.01
V0.01
V0.01
20140408
20140223
20140223
32PFD5319-30
42PFD5519-30
48PFD5519-30
RTD2264DD
TPT315B5_HVN
LCG420DUJEI
LCS480HN03XA
05_S520A
AB3E30C
B9E10L
TV
Video
VGA
On
OFF
On
8
0
0
0
0
0
RGB
RGB
Normal
RGB
RGB
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: TPR141A 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.
5.2.2
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: "Menu+1999+Back/Recall". Do not allow the
display to time out between entries while keying the
sequence.
After entering the Factory mode, the following items are
displayed,
Description
Main-MCU Version
Bootloader Version
SUB-MCU Version
EEPROM Version
Software release date
Model name
Scaler model
Display model
Input source
Only need to do automatic correction input source of effective,otherwise it is not action
SSC
Enable on/off
Step
Top
ADC
ADC Gain
Offset RGB
The current set of color temperature
Scaler model
ADC Gain
Offset RGB
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