Philips S42AX-YD04 Service Manual page 21

5.2 Fault Finding
5.2.1 Fault finding tree
See chassis related Service Manuals
Operating Voltages don´t exist
"Power Supply Check"
Service Modes, Error Codes, and Fault Finding
No
Repair Philips application.
Figure 5-2 Fault symptom overview (complete TV set) [1/2]
No Voltage output Operating Voltages exist,
but No Display
Go to
Go to
"No Display"
flowchart
flowchart
(version dependent)
Is related to Logic adress Buffer.
"Address Open / Short"
Go to
Figure 5-3 Fault symptom overview (complete TV set) [2/2]
First check complete TV set.
Fault Symptom?
Power Supply
is working ?
Check if LVDS from
SSB board is OK.
Use LVDS Tool when possible.
Output of SSB is OK?
SDI repair Scenario.
Fault finding: Display fault.
First check complete TV set.
Fault Symptom?
Abnormal Display, not
open or short Lines
Go to the
"Abnormal Display"
flowchart
Vertical
flowchart
SDI PDP 2K7
No
Power supply is not working.
No voltage output.
"Power Supply Check"
Go to
& repair scenario
with Philips application
or PDP as stand alone check.
H_16870_067.eps
040407
Some horizontal or Vertical
Lines don´t exist on the
Display.
Sustain open
Horizontal or
Vertical Lines?
Horizontal
Is related to X-Main, Y-Main
and Y-buffer.
"Sustain Open / Short"
Go to
flowchart
G_16380_056.eps
160606
5. EN 21