BENQ A31 (Service Manual) 2019-10-25

Сервисный мануал и схема мобильного телефона BENQ A31​

Файл в формате PDF на английском языке




Table of Content

• 1 Introduction
• 1.1 PURPOSE
• 1.2 SCOPE
• 1.3 TERMS AND ABBREVIATIONS
• 2 List of available level 3 parts
• 3 Required Equipment for Level 3
• 4 Required Software for Level 3
• 5 Radio Part
• 5.1 BLOCK DIAGRAM RF PART
• 5.2 POWER SUPPLY RF-PART
• 5.3 SMARTI SD2 PMB6271
• 5.3.1 Integrated 26MHz DCXO reference oscillator
• 5.3.2 Local oscillator
• 5.3.3 Receiver
• 5.3.4 Transmitter (Sigma Delta)
• 5.4 ANTENNA SWITCH (ELECTRICAL/MECHANICAL)
• 5.5 AGILENT TRANSMITTER POWER AMPLIFIER ACPM-7863
• 6 Logic / Control
• 6.1 OVERVIEW OF HARDWARE STRUCTURE A31
• 6.2 EGOLDLITE
• 6.3 PSRAM
• 6.4 FLASH
• 6.5 SIM
• 6.6 VIBRATION MOTOR
• 6.7 DISPLAY MODULE
• 6.8 ILLUMINATION – KEYBOARD
• 7 Acoustic
• 8 Power Supply, Battery and Charging
• 8.1 POWER SUPPLY ASIC
• 8.2 BATTERY
• 8.3 CHARGING CONCEPT
• 9 Interfaces
• 9.1 VIBRA (XG220)
• 9.2 EARPIECE (XG1702/XG1703)
• 9.3 MICROPHONE
• 9.4 BATTERY (X1400)
• 9.5 NANO IO CONNECTOR (X211) WITH ESD PROTECTION (Z211)
• 9.6 SIM WITH ESD PROTECTION EMI FILTER
• 10 Keyboard