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

PCAP
IC

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 FET

Charging FET
(current control)

OV FET
(OV control)

Current sense
Resistor

Schottky
Diodes

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 Tests

TEST DESCRIPTION REF LOW SPEC HI SPEC

Phasing charger
By reading hi/low
current

Store phasing
values

Verify Midrate1/2
Paths

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 LEDs
connected 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

Light
Sensor

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