Service Modes, Error Codes, And Fault Finding - Philips LC4.41E Service Manual

5. Service Modes, Error Codes, and Fault Finding

Index of this chapter:
5.1 Service Modes
5.2 Error Codes
Notes:
• Only information that is related to the IBO Zapper module
is published in this manual. For the other information, see
the relevant chassis manual (order code on front page).
5.1 Service Modes
5.1.1 Digital Customer Service Mode (DCSM)
Purpose
The Digital Customer Service Mode shows error codes and
information on the IBO Zapper module operation settings. The
call centre can instruct the customer to activate DCSM by
telephone and read off the information displayed. This helps
the call centre to diagnose problems and failures in the IBO
Zapper module before making a service call.
The DCSM is a read-only mode; therefore, modifications are
not possible in this mode.
How to Activate
To activate the DCSM, put the television in its digital mode (via
the A/D button on the remote control).
1. Press the "Digital" Menu button on the remote control to
activate the digital user menu ("Setup").
2. Activate the "Information" sub menu (via the "down" and
"right" cursor buttons).
3. In the "Information" sub menu, press the following buttons
on the remote control to activate the DCSM:
"GREEN RED YELLOW 9 7 5 9". Then, the "Service menu"
will appear (see figures below).
Menu explanation
Figure 5-1 DCSM menu - 1
Service Modes, Error Codes, and Fault Finding
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Figure 5-2 DCSM menu - 2
Figure 5-3 DCSM menu - 3
1. Hardware version: This indicates the version of the IBO
Zapper module hardware.
2. Application SW: The application software version.
3. NOR Version: The NOR Flash image software version
4. Digital Frequency: The digital frequency that the set is
tuned to.
5. Bit Error Rate: The error rate measured before the error
correction algorithm circuitry. (this value gives an
impression of the received signal)
6. Tuner AGC: Tuner AGC value.
7. COFDM Lock: Indication if COFDM decoder is locked.
8. AFD Status: Status of the Active Picture Format
Descriptor.
9. Terrestrial Delivery System Parameters:
– Bandwidth: Bandwidth of the received signal.
– Constellation Pattern: Displays the signal
constellation.
– Alpha Value: Displays the Alpha Value.
– FEC Scheme: Displays the Forward Error Correcting
Scheme
– Guard Interval: Displays the value for the Guard
Interval.
– Transmission Mode: Displays the Transmission
Mode.
10. Audio Comp Type: Type of detected audio stream.
11. MHEG Present: Indicates if MHEG is present or not.
12. CIM Card Present: Indicates if CIM card is present or not.
How to exit
Press the BLUE button on the Remote Control to exit DCSM.
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