U9500 Maintenance Guide
9 Troubleshooting
Issue 1.2 (2012-6-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
37
Table 9-1
U9500 PCBA architecture
Subsystem Module
Unit
Function
Baseband
OMAP4460
Application
subsystem
45 nm, dual ARM9 processors, microSD card,
UART/USIM, I2C, I2S, HSI, MIPI, GPIO, HDMI, Smart
Reflex 2, and clock supported
User ports
Interfaces of the Camera, PCM, broadband codec, RF,
HKADC, LCD, microSD card, USB, UART card, USIM
card, HSI, MIPI, GPIO, JTAG/ETM, and keypad
Multimedia and
game engines
MPEG/GPEG hardware engine, game engine, JAVA
accelerator, and MP3/MMS/MIDI
X-GOLD626
Modem BB
40 nm digital baseband module, system-in-package (SIP)
with low power consumption, and modulating and
demodulating for WCDMA, GPS, and GSM signals
Subsystems: ARM processor, modem DSP, interrupt
controller, and power and sleep controller
Modem PMU
65 nm, power supply to the modem BB, reset function,
two-line SMPS, eight-line LDO
Modem memory
MCP (1 GB+256 MB)
EMMC
eMMC features,
power
consumption, and
supporting
system files
Programs and NV items, 8 GB/16 GB
DDR RAM
Memory
RAM for program running, 1 GB
RF
WCDMA and
GSM/DCS
transceiver
Smartti-UE2
WCDMA RF transceiver, comprised of an RFMD chip,
PMU, and peripheral circuits
GPS
GPS receiver
Receives and processes GPS signals.
Includes the BCM4751 chip and peripheral circuits.
Bluetooth
interface
Bluetooth module Bluetooth baseband and RF transceiver, comprised of
Broadcom BCM4330 Bluetooth part and peripheral
circuits
Wi-Fi
interface
Wi-Fi module
Wi-Fi baseband and RF transceiver, comprised of
Broadcom BCM4330 Wi-Fi part and peripheral circuits
Oscillator and
frequency
synthesizer
26 M TCVCXO
and control
circuit
Provides high precision 26 MHz local clock
Antenna
Antennas,
internal
interfaces, and
antenna
protective units
U9500 provides a built-in antenna supporting WCDMA at
high and low frequency bands. U9500 provides a main
antenna and Wi-Fi/Bluetooth/GPS antennas
