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EN 14
5.
TES1.0E LA
5. Service Modes, Error Codes, and Fault Finding
Index of this chapter:
5.1 Service Mode
5.2 Error Codes
5.3 Fault Finding and Repair Tips
5.1
Service Mode
The Service Mode is activated by pressing '1923' on the
Remote Control, while the set is in the Main User Menu.
The software provides menu flexibility and full control to the
software. Service persons can adjust the TV in all manners. In
the Service Menu, you find a list of parameters.
All functions of the Service Mode, and the default parameter
settings, are listed in Chapter "Alignments".
FAULT TRACING DIAGRAM FOR POWER SUPPLY
Service Modes, Error Codes, and Fault Finding
Check 220 V AC Mains
YES
Check C 324 Voltage
YES
Check 5VSTBY
YES
Check 3.3 VS and 1.8 VS
YES
Check 5V MAIN
YES
Check 24V,33V,12V
8V,+16V,-16V
YES
Check 3.3V and 1.8V
YES
POWER IS OK
Figure 5-1 Fault finding power supply
5.2
Error Codes
These sets do not generate Error Codes
5.3
Fault Finding and Repair Tips
Notes:
•
It is assumed that the components are mounted correctly
with correct values and no bad solder joints.
•
Before any fault finding actions, check if the correct options
are set.
•
The Service Menu contains some useful tests, e.g. "ADE
pattern" in de "Scaler Setup" Menu, that generates
patterns.
NO
Check AC Power Cable is Plugged
NO
Check F300 Fuse
NO
Check IC21 and Peripheral
Components
NO
Check U902 and U903
NO
Check StandBy Pin
HIGH
StandBy
NO
Mode
Check Related Components for
Defective Outputs
NO
Check U900 and U901
LOW
Normal Mode
Check Components
For 5V
G_16510_052.eps
211106
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