Table of Contents
Advertisement
Level 3 Repair
8-3. LOGIC
8-3-1. Power On
Power switch on
Check the current
consumption
>= 100mA?
Check the battery
voltage
>= 3.45?
Check the clock at
OSC300 = 32 kHz ?
C220(1.28V_VCORE)=1.28V?
C211(3.0V_DIG)=3.0V?
C214(1.8V_MEM)=1.8V?
C221(2.7V_VRF)=2.7?
C224(1.3V_VRF)=1.3V?
C208(1.3V_VCXO)=1.3V?
Check the clock
26 MHz ?
Check the initial operation
NG
Yes
Yes
Yes
Yes
Yes
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
NO
NO
Change the battery
NO
NO
NO
Check the clock generation circuit
8-6
Download
Resolder OSC300
Check the U300
OSC200
Hide quick links:
Advertisement
Table of Contents
