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EN 18
5.
TPS14.4A 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.
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).
Table 5-1 Factory mode overview
Item Item value
0
Brand
1
Model
2
HW Ver
3
SW Ver
4
Date
5
Scaler
6
Tuner
7
Panel
8
ADC Adjust
9
W/B Adjust
10
SSC Adjust
11
EQ Adjust
12
Burn in
13
Reset
14
Exit
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.
2014-Jul-11
Service Modes and Fault Finding
Default value
42"
50"
Philips-TWN
Philips-TWN
42PFH5009/96
50PFH5009/96
2.00_20140703_16
2.00_20140703_17
14_42
16_50
The Jul 3 16:27:03
The Jul 3 17:22:04
CST 2014
CST 2014
LCA420HVN06AD
LCM500J1PE8AC2
QAQ0X
2R0X
OFF
OFF
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
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 "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,
55"
Description
Brand name
55PFH6009/96
Model name
Hardware Version
2.14_20140416_19
Software Version
31
Wed Apr 16
Software release date
19:41:58 CST 2014
Scaler model
Tuner
LCA550HVN01AD6
Display Panel model
E30X
ADC Adjust
W/B Adjust
SSC Adjust
EQ Adjust
ON
Turn on or turn off Burn in pattern
Reset
Exit
back to
div. table
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