6.2-6
6.2.7 DC Supply Fail Troubleshooting Chart (1 of 3)
Problem with DC supply
distribution network
Check voltage VSW1 at
R711
Voltage
=3.6V
+/- 5%
Yes
Check voltage V1.55 at
R718
Check voltage V1.875 at
L703
Voltage
=1.875V
Yes
Check voltage V2.9 at
L704
February 14, 2012
UHF1 Troubleshooting Charts: DC Supply Fail Troubleshooting Chart (1 of 3)
No
Replace Q702
No
Voltage
=1.55V
Yes
No
No
Voltage
=2.9V
Yes
3
No
Yes
Problem
Solved?
Replace U701
End
6816985H01-F