Ui Modules - Nokia NPD-4 Series Troubleshooting - Bb
Transceivers
Hide thumbs
Also See for NPD-4 Series:
- Technical documentation manual (62 pages) ,
- Troubleshooting - gps (28 pages) ,
- Troubleshooting - antennas (12 pages)
Table of Contents
Advertisement
CCS Technical Documentation
UI modules
Keypad faults 2
Are UI modules keys
working?
Issue 1 02/2003
Change keypads
No
module. Is it working?
No
Measure ROW0-4
signals between UPP
and Z300.
Are they -1.8V?
Yes
Measure ROW0-4
signals between Z300
and keypads. Are they
-1.8V?
Nokia Corporation
Troubleshooting — BB
Yes
Make sure there are
no shorts on Z300. If
No
OK, change UPP.
No
Make sure there are
no shorts on Z300. If
Yes
OK, change UPP
Confidential
NPD-4
Re-test
Change Z300
Page 41
Advertisement
Table of Contents
Troubleshooting
