Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of any
content or data from this document without Samsung’s written authorization is strictly prohibited.
8. Level 3 Repair
8-4-3. No Service
No service
Yes
No
Yes
No
END
Check the Voltage
C2018 : 1.8V, C2023 : 1.2V
C2005/C2002 : 1.0V
No
Replace the U2009
Home screen
→
Phone
→
Keypad
→
*#1234#
→
Check
Phone version
→
CP :
A705FXXXX or unknown
Yes
No
CP : A705XXXXX
Check the connection of RF coaxial cable
Check the clock OSC5000
Is the frequency 38.4MHz?
No
Yes
No
Replace the OSC5000
Replace the U2009
Yes
No