motorola confidential proprietary gopi - logic. – 9.15am budi - camera - 9.30am gary - blue-tooth,...
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Motorola Confidential Proprietary
•Gopi - Logic. – 9.15am
•Budi - Camera - 9.30am
•Gary - Blue-tooth , Rotator - 10am
•Lee Ming - RX. 10.30am
•David - TX. 11am
•Leng - PM/P-Flex/Keypad 11.30am
•Pang - Audio 12pm
•AOB - 12.30pm
V80 Analyzing Training
Motorola Confidential Proprietary
V80 Power Management
PCAPIC
Regulators
AUDIO
Charging Cct
Motorola Confidential Proprietary
V80 Voltage Regulators
Vbuck 1.87V (Neptune/Memory/ATI)
Vboost 5.5V (5VReg/Vusb/Keypad)
IO Reg 2.78V (Most ICs & pull-up)
IO Reg 2.78V (Most ICs & pull-up)
Aud Reg
Nept_IOReg delay circuit with 1.2V as trigger
Neptune_IO Reg 2.78V
Charger detection control (V4 powered)
Motorola Confidential Proprietary
V80 Charging Circuit
Midrate1 Circuit
Midrate2 FETCharging FET(current control)
OV FET(OV control)
Current senseResistor
SchottkyDiodes
To PCAP
BATT+
B+Raw_Ext_B+
Motorola Confidential Proprietary
12M–Verify/Phase Voltages
TEST DESCRIPTION REF LOW SPEC HI SPEC
Check B+
Phasing BATT+& MPB by Reading Hi & Low voltages
Phasing B+by Reading Hi & Low voltages
Motorola Confidential Proprietary
Charging Path
Midrate1: 0ff = FET ON On = FET Off
Midrate2 :0ff = Main FET OFF On = Main FET ON
Charging FET(current control)
OV FET(OV control)
Current sense Resistor
Motorola Confidential Proprietary
12M – Charger TestsTEST DESCRIPTION REF LOW SPEC HI SPEC
Phasing chargerBy reading hi/lowcurrent
Store phasingvalues
Verify Midrate1/2Paths
Verify OV FET
Verify Off current
Motorola Confidential Proprietary
Personality Flex
Joystick Circuit
From C-Flex
Status LEDs NAV LEDs
Ring Tricolor LEDs
Vboost circuit
Motorola Confidential Proprietary
P-Flex Components
2 pairs of Tri-color LEDsconnected diagonally.
LP3933 driver controls NAV and Tri-color LEDs
2 NAV LEDs for blade keys
Status LED:PCAP controlled
Keys
Boost circuit for LED
Motorola Confidential Proprietary
V80 Keypad
2 EMI/ESD Filters
6 LEDS
LightSensor
1 Dual Diode for each key
Possible key failures:• ALL keys no function – KBxx line/s short to ground or Neptune issue• Some keys no function – KBxx line/s open or short to each other.• 1 key no function – missing/damaged dual diode/switches