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Published byEthan Page Modified over 9 years ago
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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
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Motorola Confidential Proprietary V80 Power Management PCAP IC Regulators AUDIO Charging Cct
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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) Aud Reg Nept_IOReg delay circuit with 1.2V as trigger Neptune_IO Reg 2.78V Charger detection control (V4 powered)
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Motorola Confidential Proprietary V80 Charging Circuit Midrate1 Circuit Midrate2 FETCharging FET (current control) OV FET (OV control) Current sense Resistor Schottky Diodes To PCAP BATT+ B+ Raw_Ext_B+
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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
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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
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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
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Motorola Confidential Proprietary Personality Flex Joystick Circuit From C-Flex Status LEDsNAV LEDs Ring Tricolor LEDs Vboost circuit
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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
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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
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