I360 Mobile Phone Maintenance Manual v0.1
DBB
ABB
MEMORY
JPEG
IC
CAMERA
LCM
SIM
BATTERY
RF
KEYBOARD
MIC
SPEAKER
EARPHONE
MIDI&
MP3
VIBRATOR
RECEIVE
5.2.1.2 Modules Description
Power supply:
The upper part shows ABB’s direct output, and the lower part shows the output voltage
from the LDO. Once the phone is turned on, the LDO output should be valid. If there is no output, check
the LDO’s input and the shutdown control (which should be “1”).
V-DBB
1.5V
TO DIGITAL CORE
V-FLASH 2.8V TO
MEMORY
V-SRAM 2.8V TO
MEMORY
V-IO 2.8V
TO
Peripherals
V-ABB
2.8V
TO Analog Part
VBAT 3.5---4.2V
Battery
Voltage
Note:
VBAT is connected directly with the battery, providing power supply to the phone
components via L301 (filter induce). The network name is VBA.
U336_5 pin
3.3V
TO MIDI PA
U334_5 pin
1.8V
TO MIDI
LENOVO Lenovo Mobile Telecommunications Co., Ltd.
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