User Guide

PAMS
Technical Documentation
RAE-3
8. Troubleshooting
Page 8 – 11
Issue 1 06/01
1.2 Keypad problems
1. Connect the phone under test to Wintesla.
2. Select Testing –> User interface testing
3. Select the CMT to be tested from the ”Display” panel and click ”Start
key test” (figure 1). The test starts and the button text changes to ”Stop key
test”.
4. Click the ”Stop key test”. Result window (Figure 2) appears.
All letters under the key names should show ”A”. . . . . . . . .
If there is ”R”, the key is stuck. . . . . . . . .
Repeat the test. If the result is the same, use table 1 to find out the signals con-
nected to the particular key(s).
5. Click ”Start key test” again.
This time, press and release all keys through, then stop the test. . . . . . . . .
There should be ”P” for every key. . . . . . . . .
If ”A” results are seen, repeat and press these keys again. If key. . . . . . . .
presses are not registered, find out the signals connected to the key.
6. Change the keypad to be tested to PDA. Repeat test steps 4 and 5
for the PDA keyboard. The result window is shown in Figure 3.
7. Open the CMT side cover. Check the 50–way connector on UL2.
Is it properly inserted, both parts of the connector properly soldered?. . . . . . . .
Repair, retest
8. Check CMT key mat alignment and membrane switches on the mat.
Replace key mat if broken.
9. Check 70–way connector on BL8.
Is it properly inserted, both parts of the connector properly soldered?. . . . . . . .
Repair, retest
10. Locate the faulty part by placing the parts into service jig and chang-
ing the parts one by one. Follow instructions in the proper section (2.23 for BL8
fault, 4.4 for UL8 flex fault, 3.5 for UL2 display module fault).
Table 1. Keyboard matrix (keys on UL2 module highlighted) – English keymat
Col0 Col1 Col2 Col3 Col4 Col5 Col6 Col7 Col8 Col9
Row0 cmt
Soft1
cmt
Up
cmt
Soft2
pda
Soft 3
pda
Soft 1
Space Info < / >
Row1 cmt
Send
cmt
Down
cmt
End
pda
Soft 4
pda
Soft 2
Z Shift C B
Row2 cmt 1 cmt 2 cmt 3 cmt
Profile
cmt
Power
Chr N M , @
Row3 cmt 4 cmt 5 cmt 6 cmt * cmt # Menu Up Right Down Left
Row4 cmt 7 cmt 8 cmt 9 cmt 0 :; +– Back-
space
Enter
Row5 ESC App1 App2 App3 app4 App6 App7 App8
Row6 Ctrl V X 6 App5
Row7 1 2 3 4 5 7 8 9 0 P
Row8 Tab Q W E R T Y U I O
Row9 Caps A S D F G H J K L