Toshiba T5200 - Page 29

hold the Ctrl key, then press the Home key.
After performing (a) and (b), reperform steps 1 and 2. If the
message in step 2 still fails to appear, go to PROCEDURE 3.
<fig id=MMS\5200\52002_41.TIF>Page 2-41</fig>
PROCEDURE 2
Display Test Execution
1. Insert the diagnostics disk into the FDD. Then type a:testce52
and press Enter key and run the display test as indicated on
the diagnostic test menu.
2. If an error is detected during the display test, the system board
is probably defective. Refer to section 2.4.
3. If no error is generated, the plasma display is normal.
<fig id=MMS\5200\52002_42.TIF>Page 2-42</fig>
PROCEDURE 3
PDP Connector Check
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³ WARNING: Dangerous high voltage is supplied to the plasma³
³ display panel. Pay enough attention on handling. ³
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1. Turn off the power, then unplug the AC power cord.
2. Remove the PDP without disconnecting the cables (Refer to section
4.5.) and check that the cables are securely connected to the
plasma display board (Refer to figure 2-3.)
3. If the cable is securely connected, go to PROCEDURE 4.
4. If the cable is not securely connected, secure it.
<fig id=MMS\5200\52002_42.TIF>Figure 2-3</fig> PDP connector check
<fig id=MMS\5200\52002_43.TIF>Page 2-43</fig>
PROCEDURE 4
New PDP Connection
1. Connect a new PDP without installing it.
2. If normal operation is restored after connecting the new PDP, the
original PDP is probably defective. Reassemble the system.
3. If normal operation is not restored, the system board is probably
defective. Refer to section 2.4.
<fig id=MMS\5200\52002_44.TIF>Page 2-44</fig>
File No.: 960-011