Philips 5008 Series Service Manual page 22

EN 22 5. Q552.5HE LA
• 6 short blinks followed by a pause of 1.5 seconds.
• 1 long blink of 1.5 seconds to finish the sequence.
• The sequence starts again with 12 short blinks.
5.7.2 Displaying the Entire Error Buffer
Additionally, the entire error buffer is displayed when Service
Mode "SDM" is entered.
5.8 Fault Finding and Repair Tips
Note:
• 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.
5.8.1 NVM Editor
In some cases, it can be convenient if one directly can change
the NVM contents. This can be done with the "NVM Editor" in
SAM mode. With this option, single bytes can be changed.
Caution:
• Do not change these, without understanding the function of
each setting, because incorrect NVM settings may
seriously hamper the correct functioning of the TV set!
• Always write down the existing NVM settings, before
changing the settings. This will enable you to return to the
original settings, if the new settings turn out to be incorrect.
5.8.2 Load Default NVM Values
It is possible to upload the default values to the NVM with
ComPair in case the SW is changed, the NVM is replaced with
a new (empty) one, or when the NVM content is corrupted.
After replacing an EEPROM (or with a defective/no EEPROM),
default settings should be used to enable the set to start-up and
allow the Service Default Mode and Service Alignment Mode to
be accessed.
5.8.3 No Picture
When you have no picture, first make sure you have entered
the correct display code. See paragraph
the instructions.
5.8.4 Unstable Picture via HDMI input
Check (via ComPair or factory mode) if HDMI EDID data is
properly programmed.
5.8.5 No Picture via HDMI input
Check if HDCP key is valid. This can be done in CSM.
5.8.6 TV Will Not Start-up from Stand-by
Possible Stand-by Controller failure. Re-flash the software.
5.8.7 Audio Amplifier
The Class D-IC U6002 has a powerpad for cooling. When the
IC is replaced it must be ensured that the powerpad is very well
pushed to the PWB while the solder is still liquid. This is needed
to insure that the cooling is guaranteed, otherwise the Class
D-IC could break down in short time.
5.8.8 CSM
When CSM is activated and there is a USB memory stick
connected to the TV, the software will dump the complete CSM
2013-Sep-20
Service Modes, Error Codes, and Fault Finding
5.8.9
5.8.10 Display option code
6.4 Option Settings for
back to
div. table
content to the USB memory stick. The file (Csm.txt) will be
saved in the root of the USB memory stick.
Loudspeakers
Make sure that the volume is set to minimum during
disconnecting the speakers in the ON-state of the TV. The
audio amplifier can be damaged by disconnecting the speakers
during ON-state of the set!
Attention: In case the SSB is replaced, always check the Panel
Code in CSM, even when picture is available. Performance
with the incorrect display option code can lead to unwanted
side-effects for certain conditions.