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LG Electronics
LG-C320
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174 pages, 32.01 Mb
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Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. TECHNICAL BRIEF
QSC6270HKADC Block diagram
Contents
Main
Table Of Contents
Page
1. INTRODUCTION
Introduction
1.1 Purpose
1.2 Regulatory Information
A. Security
B. Incidence of Harm
Page
1.3 Abbreviations
1. INTRODUCTION
2. PERFORMANCE
2.1 Product Name
2.2 Supporting Standard
2.3 Main Parts : GSM Solution
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2.4 HW Features
Page
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2.5 SW Features
Page
2.6 HW SPEC.
Page
Page
3.1.1 Processor
3.1.2 Memory support (and LCD interface)
QSC6270
(3G disable)
Page
3.1.3 Connectivity
QSC6270
Figure 3.1.4 GPIOs of C320
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Copyright 2010 LG Electronics. Inc. All right reserved.
3.1.4 GPIOs
QSC6270 (3G disable has 78 configurable I/O pins
3.1.5 Air interfaces
3.1.6 Internal base band functions
3.1.7 Multimedia
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Figure 3.1.7.2.2 The LCD interface of C320
3.1.8 UART
3.1.9 USB
3.1.10 HKADC
Page
3.2 Power management
3.2.1 Input power management
3.2.2 Output voltage regulation
Page
3.2.3 Charging control
kGG
kGuv{G
3.3 SUB SYSTEM
3.3.1 KEY PAD
3.3.2 External memory interface
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3.3.4 LCD Module (LQ024Q3UX01 : SHARP)
Page
Page
3.3.5 Audio Signal Processing & Interface
3.4 GENERAL DESCRIPTION
(RF Part)
3.5 GSM MODE
3.5.1 GSM RECEIVER
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G
3.5.2 GSM TRANSMITTER
3.6 OFF-CHIP RF COMPONENTS
3.6.1 D5008 (FL101: FEM)
Page
3.7 OFF-CHIP COMPONENTS
3.7.1 Bluetooth (BCM2070)
Page
3.7.2 FM Receiver (TEA5991)
SYMBOL HVQFN WLCSP DESCRIPTION
4. TROUBLE SHOOTING
Power ON Troubleshooting
5. Base band part
4.1 Power ON Troubleshooting
Power ON Troubleshooting
4.2 Charger Troubleshooting
Charger Troubleshooting
Page
USB Troubleshooting
4.3 USB Troubleshooting
USB Initial sequence is : Isert USB Cable USB_VBUS +5V Check IC400 triggered USB IF work
USB Troubleshooting
USIM Troubleshooting
4.4 USIM Detect Troubleshooting
USIM Troubleshooting
TP1 TP3TP2
4.5 Camera Troubleshooting
Camera control signals are generated by QSC6270.
Page
Main side view LED Troubleshooting
4.6 Main side view LED Troubleshooting
Slide Key side view LED Troubleshooting
4.7 Slide Key side view LED Troubleshooting
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Slide Key side view Troubleshooting
WLED_VOUT
SLIDE_KEY_LED
LED
SUB KEY B/L
LCD Troubleshooting
4.8 LCD Troubleshooting
LCD control signals are generated by QSC6270. The signal path is : QSC6270 CN102LCD Module
Page
Vibrator Troubleshooting
4.9 Vibrator Troubleshooting
Vibrator is operate when DC motor driver is enabled.
Page
4.10 Receiver Path
Main to Slide FPCB Connector(CN801)
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TP1
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TP4_ReceiverPAD=CN101
Slide FPCB to Main PCB Connector(CN103)
TP3_FB101
TP2
4.11 Headset path
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Audio Sub system IC501TP1_C506TP1_C507
4.12 Speaker/Speaker Phone path
TP1_C508
Audio Sub System(IC501) TP1_C509 TP2_FB507 TP2_FB508
TP3
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F_SUB_FPCB to Main PCB Connector(CN101)
1 10
TP4
TP5_CN102(=Speaker Pad)
4.13 Main microphone
MIC501 VMIC_BIAS_P(TP1_C526) MAIN_MIC_P(TP2_C261) MIC1P PAD of QSC6270(3G disable)
Page
4.14 Headset microphone
Page
G G G UG
4.15 RF Component
4.16 RF Path
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Page
4.17.1 Checking Front-End Module Block
4.17.1 Checking Front-End Module Block
HG G G G G UUHG G G G G UG G G
HG G G G G UUHG G G G G UG G G
51 51 51 51
4.17.2 Checking GSM Rx part
4.17.3 Checking GSM Tx part
4.17.3 Checking GSM Tx part
Table 4.17.3 GPAM Logic Control
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4.18 Checking Bluetooth Block
4.18.1 BLUETOOTH RF components
Page
4.18.3 BLUETOOTH Trouble shooting
4.18.3 BLUETOOTH Trouble shooting
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[BT main clk : 26MHz]
{wX {wY
Class 1.5
{wZ
{w[G
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4.19.2 FM Trouble shooting
XUXU
X
{wYG {wZG {w[G
TP1 TP2 TP3 TP4
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5. DOWNLOAD
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ESC6270POWER
51#F653#KZ#Eorfn#Gldjudp#=#Srzhu#b4#
POWER
ESC6270
USB_VBUS
_
51#F653#KZ#Eorfn#Gldjudp#=#Srzhu#b5#
VBAT
VBAT
RT9396 (SUB PMIC)
GSM PAM (TQM7M5012)
61#F653#KZ#Eorfn#Gldjudp#=#EE
MIC
S
QSC GPIO
DC MOTOR
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81#F653#KZ#Eorfn#Gldjudp#=#Frqqhfwlylw|+EW2ZLIL2IP,brswlrq
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81#F653#KZ#Eorfn#Gldjudp#=#Frqqhfwlylw|+EW2IP,
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91#F653#KZ#Eorfn#Gldjudp#=#Phpru|
(SIM PLUS)
SDRAM
HYNIX MCP (H8BCSOSIOBAR)
NAND Flash (2Gbit)
:1#F653#KZ#Eorfn#Gldjudp#=#Dxglr
ESC6270
TEA5991
WM9093
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;1#F653#KZ#Eorfn#Gldjudp#=#YLVXDO+#OFG#)#FDPHUD#,
5channel
RT9396GQW
QSC6270
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1-2-1-3_ESC-Quad EDGE
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ANTENNA SWITCH MODULE LOGIC
2-2-2-1_ESC_ESC6270
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2-2-2-1_ESC_ESC6270
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NET Conn
MCP2-1_2G_1G DDRx16_hynix
3-3-1_6P_USIM
ENSY0024301
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5-1-2-1
4-4-2-3
5-4-1-1
6CH+4LDO,PWM
6-2-2-1
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R603
WLED1
Connectivity_ANT_PAD
Class 1.5
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8-1-1-1
3-2-1-3_push_1.50T
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16 15 14 13 12 11 10 9 87654321
L K J I H G F E D C B A
KEY PCB
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L K J I H G F E D C B A 12 11 10 98 7 6 5 4 3 2 1
Slide FPCB to Main PCB Slide FPCB to KEY PCB(Slide)
(54Pin)
SLIDE FPCB
MAIN RECEIVER
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SPK Common Circuit From Module FPCB to Main PCB Connector
MICRO SD
MODULE FPCB
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8. BGA PIN MAP
8. BGA PIN M AP
1. BGA PIN MAP
Page
8. BGA PIN MAP
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Page
Page
C320_MAIN_SPFY0235601_1.1_TOP
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LD801/802 Main Key LED - Can not use LED
U801 Hall IC - Can not use Slide Detection IC501 Audio Sub System - Can not use Sound,Headset
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C320_MAIN_SPFY0235601_1.1_BOT
C237
C226
21
C408
C320_KEY_SPEY0068201_10_TOP
LD107/LD108/LD106/LD104/LD105/LD103 Sub Key LED - Can not use LED
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CN101
CN102
C320_KEY_SPEY0068201_10_BOT
C320_F_SLIDE_SPCY0246901_10_TOP
1
S
01
C320_F_SUB_SPCY0247101_10_BOT
10. RF CALIBRATION
10. RF CALIBRATION
10.1.2 Basic Setting of Tachyon for RF Calibration & Test
10. RF CALIBRATION
10.1.3 Log of RF Calibration and Test
11. TEST ALONE
Phone Test Mode : LG-C320
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Phone Test Mode Scenario
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Page
12. EXPLODED VIEW & REPLACEMENT PART LIST
12.1 EXPLODED VIEW
Page
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12.2 Replacement Parts <Mechanic component>
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12.2 Replacement Parts <Main component>
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12.3 Accessory
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