LG GX500 User manual
Service Manual Model : GX500
Internal Use Only
Service Manual
GX500
Date: March, 2010 / Issue 1.0
- 3 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Table Of Contents
1. INTRODUCTION................................................. 5
1.1 Purpose............................................................................................... 5
1.2 Regulatory Information ............................................................... 5
1.3 Abbreviations................................................................................... 7
2. PERFORMANCE..................................................9
2.1 H/W Features.................................................................................... 9
2.2 Technical Specification...............................................................10
3. TECHNICAL BRIEF............................................17
3.1 GX500 Functional Block diagram...........................................17
3.2 Dual Baseband Processor (BBP) Introduction...................18
3.3 Power management IC ..............................................................38
3.4 Power ON/OFF...............................................................................46
3.5 Dual SIM & u-SD Interface.........................................................48
3.6 Memory............................................................................................50
3.7 LCD Display.....................................................................................53
3.8 Keypad Switching & Scanning................................................54
3.9 LCD back-light illumination......................................................55
3.10 JTAG & ETM interface connector .........................................56
3.11 Audio...............................................................................................57
3.12 Charging circuit ..........................................................................59
3.13 WI-FI & BLUETOOTH & FMradio............................................60
3.14 5pin Micro USB Interface connector..................................63
3.15 Triaxial, digital acceleration sensor.....................................64
3.16 General Description..................................................................66
3.17 Receiver part................................................................................68
3.18 Transmitter part..........................................................................69
3.19 RF synthesizer..............................................................................70
3.20 DCXO...............................................................................................70
3.21 Front End Module control......................................................71
3.22 Power Amplifier Module.........................................................72
3.23 PAM Schematic ...........................................................................73
4. TROUBLE SHOOTING ......................................74
4.1 Trouble shooting test setup.....................................................74
4.2 Power on Trouble..........................................................................75
4.3 Charging trouble ..........................................................................78
4.4 LCD display trouble .....................................................................80
4.5 Camera Trouble.............................................................................82
4.6 Receiver & Speaker trouble ......................................................84
4.7 Microphone trouble....................................................................86
4.8 Vibrator trouble.............................................................................87
4.9 SIM & uSD trouble ........................................................................89
4.10 Touch trouble...............................................................................92
4.11 LCD LED trouble .........................................................................93
4.12 Trouble shooting of Receiver part.......................................94
4.13 Trouble shooting of Transmitter part.............................. 100
4.14 Trouble shooting of WI-FI/BT/FM part............................ 109
5. DOWNLOAD & S/W UPGRADE......................112
6. BLOCK DIAGRAM...........................................120
7. CIRCUIT DIAGRAM ........................................121
8. BGA Pin Map..................................................129
9. PCB LAYOUT...................................................139
10. RF CALIBRATION .........................................147
10.1 Test Equipment Setup........................................................... 147
10.2 Calibration Step....................................................................... 147
11. STAND ALONE TEST ....................................152
11.1 SIM1 TEST ................................................................................... 152
11.2 SIM2 TEST ................................................................................... 159
12. ENGINEERING MODE ..................................161
13. EXPLODED VIEW & REPLACEMENT
PART LIST ....................................................163
13.1 EXPLODED VIEW...................................................................... 163
13.2 Replacement Parts.................................................................. 165
13.3 Accessory ................................................................................... 189
- 4 -
LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 5 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. INTRODUCTION
1. INTRODUCTION
GX500 Operational Description Revision A
LG Electronics 5/143 LGE Property
I. Introduction
1.1 Purpose
This manual provides the information necessary to repair, calibration, description and download the features
of the GX500.
1.2 Regulatory Information
1.2.1 Security
Toll fraud, the unauthorized use of telecommunications system by an unauthorized part (for example,
persons other than your company’s employees, agents, subcontractors, or person working on your
company’s behalf) can result in substantial additional charges you’re your telecommunications services.
System users are responsible for the security of own system. There are may be risks of toll fraud associated
with your telecommunications system. System users are responsible for programming and configuring the
equipment to prevent unauthorized use. LGE does not warrant that this product is immune from the above
case but will prevent unauthorized use of common-carrier telecommunication service of facilities accessed
through or connected to it. LGE will not be responsible for any charges that result from such unauthorized
use.
1.2.2 Incidence of Harm
If a telephone company determines that the equipment provided to customer is faulty and possibly causing
harm or interruption in service to the telephone network, it should disconnect telephone service until repair
can be done. A telephone company may temporarily disconnect service as long as repair is not done.
1.2.3 Changes in Service
A local telephone company may make changes in its communications facilities or procedure. If these changes
could reasonably be expected to affect the use of the GX500 or compatibility with the network, the telephone
company is required to give advanced written notice to the user, allowing the user to take appropriate steps
to maintain telephone service.
1.2.4 Maintenance Limitations
Maintenance limitations on the GX500 must be performed only at the LGE or its authorized agents. The user
may not make any changes and/or repairs expect as specifically noted in this manual. Therefore, note that
unauthorized alternations or repair may affect the regulatory status of the system and may void any
remaining warranty.
1.2.5 Notice of Radiated Emissions
The GX500 complies with rules regarding radiation and radio frequency emission as defined by local
regulatory agencies. In accordance with these agencies, you may be required to provide information such as
the following to the end user.
- 6 -
LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
1. INTRODUCTION
GX500 Operational Description Revision A
LG Electronics 6/143 LGE Property
1.2.6 Pictures
The pictures in this manual are for illustrative purposes only; your actual hardware may look slightly different.
1.2.7 Interference and Attenuation
An GX500 may interfere with sensitive laboratory equipment, medical equipment, etc. Interference from
unsuppressed engines or electric motors may cause problems.
1.2.8 Electrostatic Sensitive Devices
ATTENTION
Boards, which contains Electrostatic Sensitive Device(ESD), are indicated by the sign. Following information is
ESD handling: Service personnel should ground themselves by using a wrist strap when exchange system
boards.
When repairs are made to a system board, they should spread the floor with anti-static mat which is also
grounded. Use a suitable, grounded soldering iron. Keep sensitive parts in these protective packages until
these are used. When returning system boards or parts such as EEPROM to the factory, use the protective
package as described.
- 7 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. INTRODUCTION
GX500 Operational Description Revision A
LG Electronics 7/143 LGE Property
1.3 ABBREVIATION
For the purposes of this manual, following abbreviations apply:
APC Automatic Power Control
BB Baseband
BER Bit Error Ratio
CC-CV Constant Current – Constant Voltage
CLA Cigar Lighter Adapter
DAC Digital to Analog Converter
DCS Digital Communication System
dBm dB relative to 1 milli-watt
DSP Digital Signal Processing
EEPROM Electrical Erasable Programmable Read-Only Memory
EGPRS Enhanced General Packet Radio Service
EL Electroluminescence
ESD Electrostatic Discharge
FPCB Flexible Printed Circuit Board
GMSK Gaussian Minimum Shift Keying
GPIB General Purpose Interface Bus
GPRS General Packet Radio Service
GSM Global System for Mobile Communications
IPUI International Portable User Identity
IF Intermediate Frequency
LCD Liquid Crystal Display
LDO Low Drop Output
LED Light Emitting Diode
LGE LG Electronics
OPLL Offset Phase Locked Loop
PAM Power Amplifier Module
PCB Printed Circuit Board
PGA Programmable Gain Amplifier
PLL Phase Locked Loop
PSTN Public Switched Telephone Network
RF Radio Frequency
RLR Receiving Loudness Rating
RMS Root Mean Square
RTC Real Time Clock
SAW Surface Acoustic Wave
SIM Subscriber Identity Module
SLR Sending Loudness Rating
SRAM Static Random Access Memory
STMR Side Tone Masking Rating
TA Travel Adapter
TDD Time Division Duplex
TDMA Time Division Multiple Access
UART Universal Asynchronous Receiver/Transmitter
- 8 -
LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
1. INTRODUCTION
GX500 Operational Description Revision A
LG Electronics 8/143 LGE Property
VCO Voltage Controlled Oscillator
DCXO Digitally Controled Crystal Oscillator
WAP Wireless Application Protocol
ଝ8PSK 8 Phase Shift Keying
- 9 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. PERFORMANCE
2. PERFORMANCE
GX500 Operational Description Revision A
LG Electronics 9/143 LGE Property
II. General Performance
2.1 H/W Feature
Item Feature Comment
Standard Battery Lithium-Ion Polymer, 15000mAh
AVG TCVR Current 265mA typ @PL5
Standby Current 3.7 mA typ @PP5
Talk time 7 hours (GSM TX Level 7)
Standby time Over 390 hours (Paging Period:5, RSSI: -85dBm)
Charging time Under 3.5 hours
RX Sensitivity EGSM/GSM850:-105dBm˨,DCS/PCS:-105dBm˨
TX output power EGSM/GSM850 : 33dBm (@PL 5)
DCS/PCS: 30dBm (@PL 0)
GPRS compatibility Class 12
SIM card type 3V Small
Display Main 240 u400 pixels, 3”WQVGA, 262K color
Status Indicator Send Key, Shortcut Key, Volume Up/Down Key,
PWR Key, Camera Key, Lock Key
ANT Built in antenna
EAR Phone Jack 5pin Micro USB
PC Synchronization Yes
Speech coding HR/EFR/FR/AMR
Data and Fax Yes
Vibrator Yes
Buzzer No
Voice Recoding Yes
C-Mic Yes
Receiver Yes
Travel Adapter Yes
Options Bluetooth hands-free kit, Data Kit
- 10 -
LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
2. PERFORMANCE
GX500 Operational Description Revision A
LG Electronics 10/143 LGE Property
2.2 Technical specification
Item Description Specification
1 Frequency Band
GSM850
TX: 824 + 0.2 x n MHz
RX: 869 + 0.2 x n MHz ( n = 128 ~ 251 )
EGSM
TX: 890 + 0.2 x (n-1024) MHz
RX: 935 + 0.2 x (n-1024) MHz ( n = 975 ~ 1023 /1 ~ 124)
DCS1800
TX: 1710 + ( n-511 ) u0.2 MHz (n = 512 a885)
RX: TX + 95 MHz
PCS1900
TX: 1850.2 + ( n-512 ) u0.2 MHz (n = 512 a810)
RX: TX + 80MHz
2 Phase Error RMS < 5 degrees
Peak < 20 degrees
3 Frequency Error < 0.1ppm
GSM850/EGSM
Level Power Toler. Level Power Toler.
5 33 dBm ±2dB 13 17 dBm ±3dB
6 31 dBm ±3dB 14 15 dBm ±3dB
7 29 dBm ±3dB 15 13 dBm ±3dB
8 27 dBm ±3dB 16 11 dBm ±5dB
9 25 dBm ±3dB 17 9 dBm ±5dB
10 23 dBm ±3dB 18 7 dBm ±5dB
11 21 dBm ±3dB 19 5 dBm ±5dB
12 19 dBm ±3dB
DCS1800/PCS1900
Level Power Toler. Level Power Toler.
0 30 dBm ±2dB 8 14 dBm ±3dB
1 28 dBm ±3dB 9 12 dBm ±4dB
2 26 dBm ±3dB 10 10 dBm ±4dB
3 24 dBm ±3dB 11 8 dBm ±4dB
4 22 dBm ±3dB 12 6 dBm ±4dB
5 20 dBm ±3dB 13 4 dBm ±4dB
6 18 dBm ±3dB 14 2 dBm ±5dB
4 Power Level
7 16 dBm ±3dB 15 0 dBm ±5dB
- 11 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. PERFORMANCE
GX500 Operational Description Revision A
LG Electronics 11/143 LGE Property
GSM850/EGSM
Offset from Carrier (kHz). Max. dBc
100 +0.5
200 -30
250 -33
400 -60
600 ~ 1,200 -60
1,200 ~ 1,800 -60
1,800 ~ 3,000 -63
3,000 ~ 6,000 -65
6,000 -71
DCS1800/PCS1900
Offset from Carrier (kHz). Max. dBc
100 +0.5
200 -30
250 -33
400 -60
600 ~ 1,200 -60
1,200 ~ 1,800 -60
1,800 ~ 3,000 -65
3,000 ~ 6,000 -65
5 Output RF Spectrum
(due to modulation)
6,000 -73
GSM850/EGSM
Offset from Carrier (kHz) Max. (dBm)
400 -19
600 -21
1,200 -21
1,800 -24
DCS1800/PCS1900
Offset from Carrier (kHz) Max. (dBm)
400 -22
600 -24
1,200 -24
6 Output RF Spectrum
(due to switching transient)
1,800 -27
- 12 -
LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
2. PERFORMANCE
GX500 Operational Description Revision A
LG Electronics 12/143 LGE Property
7 Spurious Emissions Conduction, Emission Status
Conduction, Emission Status
8 Bit Error Ratio
EGSM/GSM850
BER (Class II) < 2.439% @-102dBm
DCS1800/PCS1900
BER (Class II) < 2.439% @-102dBm
9 Rx Level Report accuracy r3 dB
10 SLR 8 r3 dB
Frequency (Hz) Max.(dB) Min.(dB)
100 -12 /
200 0 /
300 0 -12
1,000 0 -6
2,000 4 -6
3,000 4 -6
3,400 4 -9
11 Sending Response
4,000 0 /
12 RLR 2 r3 dB
Frequency (Hz) Max.(dB) Min.(dB)
100 -12 /
200 0 /
300 2 -7
500 * -5
1,000 0 -5
3,000 2 -5
3,400 2 -10
4,000 2
13 Receiving Response
* Mean that Adopt a straight line in between
300 Hz and 1,000 Hz to be Max. level in the
range.
14 STMR 13 r5 dB
15 Stability Margin > 6 dB
dB to ARL (dB) Level Ratio (dB)
-35 17.5
-30 22.5
-20 30.7
-10 33.3
0 33.7
7 31.7
16 Distortion
10 25.5
- 13 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. PERFORMANCE
GX500 Operational Description Revision A
LG Electronics 13/143 LGE Property
17 Side tone Distortion Three stage distortion < 10%
18 <Change> System frequency (26 MHz)
tolerance d2.5 ppm
19 <Change>32.768KHz tolerance d30ppm
20 Power consumption Standby
- Normalஆd3.8 mA(@PP5)
21 Talk Time EGSM/Lvl 7(Battery Capacity 1500mA):450 min
EGSM/Lvl12(Battery Capacity 1500 mA):630min
22 Standby Time
Under conditions, at least 390 hours:
1. Brand new and full 1500mAh battery
2. Full charge, no receive/send and keep GSM in
idle mode.
3. Broadcast set off.
4. Signal strength display set at 3 level above.
5. Backlight of phone set off.
23 Ringer Volume
At least 65 dB under below conditions:
1. Ringer set as ringer.
2. Test distance set as 50 cm
24 Charge Current Normal charging : 680 mA
Antenna Bar Number Power
7 >-92 dBm a
5 -97dBm a–93dBm
4 -100dBm a–98dBm
2 -103dBm a–101dBm
1 -105dBm a–104dBm
0 < –106 dBm
25 Antenna Display
Off No Service
Battery Bar Number Voltage (±0.05V)
3 3.69V~4.2V
2 3.53V~3.69V
1 3.43V~3.53V
26 Battery Indicator
0 3.35V~3.43V
3.53VĻ±0.05V (Call)
27 Low Voltage Warning 3.43VĻ±0.05V (Standby)
- 14 -
LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
2. PERFORMANCE
GX500 Operational Description Revision A
LG Electronics 14/143 LGE Property
28 Forced shut down Voltage 3.3 r0.05 V
29 Battery Type
Li-Polymer Battery
Standard Voltage = 3.7 V
Battery full charge voltage = 4.2 V
Capacity: 1500mAh
30 Travel Charger
Switching-mode charger
Input: 150 a240 V, 50/60Hz
Out put: 5.1, 0.7A
- 15 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. PERFORMANCE
GX500 Operational Description Revision A
LG Electronics 15/143 LGE Property
* EDGE RF Specification (Option: is not serviced for ”EDGE mode”)
Item Description Specification
1 RMS EVM ≤9%
2 Peak EVM ≤30%
3 95th Percentile EVM ≤15%
4 Origin Offset Suppression ≥30dB
GSM850/EGSM
Level Power Toler. Level Power Toler.
5 27dBm ±3dB 13 17dBm ±3dB
6 27dBm ±3dB 14 15dBm ±3dB
7 27dBm ±3dB 15 13dBm ±3dB
8 27dBm ±3dB 16 11dBm ±5dB
9 25dBm ±3dB 17 9dBm ±5dB
10 23dBm ±3dB 18 7dBm ±5dB
11 21dBm ±3dB 19 5dBm ±5dB
12 19dBm ±3dB
DCS1800, PCS1900
Level Power Toler. Level Power Toler.
0 26/25dBm ±3dB 8 14dBm ±3dB
1 26/25dBm ±3dB 9 12dBm ±4dB
2 26/25dBm ±3dB 10 10dBm ±4dB
3 24dBm ±3dB 11 8dBm ±4dB
4 22dBm ±3dB 12 6dBm ±4dB
5 20dBm ±3dB 13 4dBm ±4dB
6 18dBm ±3dB 14 2dBm ±5dB
5 Power Level
7 16dBm ±3dB 15 0dBm ±5dB
GSM850/EGSM
Offset from carrier(kHz) Max. dBc
100 +0.5
200 -30
250 -33
400 -54
600~<1,200 -60
1,200~<1,800 -60
1,800~<3,000 -63
3,000~<6,000 -65
6 Output RF Spectrum
(due to modulation)
6,000 -71
- 16 -
LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
2. PERFORMANCE
GX500 Operational Description Revision A
LG Electronics 16/143 LGE Property
DCS1800, PCS1900
Offset from carrier(kHz) Max. dBc
100 +0.5
200 -30
250 -33
400 -54
600~<1,200 -60
1,200~<1,800 -60
1,800~<3,000 -63
3,000~<6,000 -65
6,000 -71
GSM850/EGSM
Offset from carrier(kHz) Max. dBm
400 -23
600 -26
1,200 -27
1,800 -30
DCS1800, PCS1900
Offset from carrier(kHz) Max. dBm
400 -23
600 -26
1,200 -27
7 Output RF Spectrum
(due to switching transient)
1,800 -30
6
- 17 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. TECHNICAL BRIEF
3. TECHNICAL BRIEF
GX500 Operational Description Revision A
LG Electronics 17/143 LGE Property
III. Technical brief
III-1 Baseband circuit
3.1 GX500 Functional Block diagram
The functional component arrangement is mentioned below diagram.
~mV
i{Vmt
z~iTiY\
wti__^^
zXkh{hGWaX\
zXhkkGWaY]
uhukjzzX
yhtjzzX
zXmjkwSGzXjrl
ykzXSG~yzX
zXzkjjsrp
zXzkjjsrv
ijWzXSGijXzX
ijYzXSGijZzX
yhzzXSGjhzzX
YnGuhukGR
XnGzkyGzkyht
XnGuhukGRG
\XYGzkyGzkyht
zYkh{hGWaX\
zYhkkGWaX^
uhukjzzY
yhtjzzY
zYmjkwSGGzYjrl
ykzYSG~yzY
zYzkjjsrpVv
ijWzYSGijXzY
yhzzYSGjhzzY
zYkh{hGWaX\
zYhkkGWaXY
ykzYSG~yzY
ijWzYSG
ijXzY
kwyhtjzzY
kwyhti|zzY
kwyhtzltzY
kwyhtpu{zY
zXkh{hGWaX\
zXhkkGWaXY
ykzXSG~yzX
ijWzXSG
ijXzX
kwyhtjzzX
kwyhti|zzX
kwyhtzltzX
kwyhtpu{zX
XY_rG
kwyht
i
wwy
lvj
jonlu
tv{G
k
ztXWW
skv
}
}pilu
sputv{vylu
spuw~tmylx
jG
w
hh{ZX]`
sjk
tslk
X¥]
sjkisj{ys
jG
j
zptXoztpju
zptXoztpjw
zptXzptY
zls
zptXtpju
zptXtpjw
zptXzptY
zls
zptXozzwry
zptXozzwrs
zptXzptY
zls
zptYoztpju
zptYoztpjw
zptYtpju
zptYtpjw
z~
z~ thpuGtpj
i{zls
zptXpYzXjsr
zptXpYzXy
zptXpYzX{
zptXpYzX~hW
zptYpYzXjsr
zptYpYzXy
zptYpYzX{
zptYpYzX~hW
i{Gzls
z
~shujtkVjsr
VzkpvWaZ
Vylzl{uVovz{~hrl
|wVmltylnvu
i{ovz{~hrl|w
|hy{i{y{z
VyV{Vj{z
ylnvu
jsrZYr
i{~hrl|w
jsrylx
wjtzuj
wjtjsr
wjty
wjt{
mtGh
i{Gh
zwrVyj}
mlt
stzw[Zuh
T^_Y
i
wht
h~l]X\^
{
wti]Y^Y
Y]to¡
Y]totjsr
ymjsrVkhVlu
xSGxSGpSGp
whtvkl
zXwhihuk
whsl}ls
{vuwh
mlXSGmlY
tGz
hu{
mlt
stzw[Zuh
T^_Y
wht
h~l]X\^
tGz
hu{
}jXSG}jY
nzt_\Wyw
nzt_\Wyu
nzt`WWyw
nzt`WWyu
nztX_WWyw
nztX_WWyu
nztX`WWyw
nztX`WWyu
{siSG{oi
whluSG{yhtw
zYwhihuk
whtvklY
znZzptX
yz{VG
jsrVpv
znyzptY
yz{VG
jsrVpv
ttjkl{
ttjkW
ttjjsr
ttjjtk
{zpyx
{jozkh
{jojsr
hjjlspu{
zkhSGzjs
{v|jo
{zjYWW^p
ny
{v|jo
iGGi
hjjlsG
zluzvy
ithWYZ
ZYU^]_ro¡
Y]to¡ ZYU^]_ro¡
wti____
kpmkWaX\
kpm}zujVjkV
jzVykV~yVylzl{
sjkpk
jhtkh{hWa^
jhtwjsrVozuj
V}zujVwkVylzl{
Vtjsr
pYjzjs
pYjzkh
htw
z|izz{lt
st[`X\X{s
t|pj
{z\|zi
hZZ[WY
|z~kt
|z~kw
|z~pk
\Gwpu
jvu
pYjzkh
pYjzjs
|z~pu{
jGpj
ixY\W[W
}i|z
yw~yvulu
}i|z
znZ
zptXpv
zptXyz{
zptXjsr
zny
zptYpv
zptYyz{
zptYjsr
ozvs
ozvy
oztpju
oztpjw
|zikw
|zikt
|hy{y
|hy{{
zptXyj}u
zptXyj}w
zptXzptY
zls
z~
zptYozzwry
zptYozzwrs
zptYyj}u
zptYyj}w
z~ ozzwrs
ozzwry
yj}u
yj}w
tpju
tpjw
zptX|hy{y
zptX|hy{{
|hy{zls
zptY|hy{y
zptY|hy{{
zptX|zikw
zptX|zikt
|zizls
zptY|zikw
zptY|zikt
wti]_YX
z~
z~
z~ mtozzwrs
mtozzwry
Y]to¡
~m h
mts
mty
rwpuWaYG
rwv|{WaZ
~mV
i{Vmt
z~iTiY\
wti__^^
zXkh{hGWaX\
zXhkkGWaY]
uhukjzzX
yhtjzzX
zXmjkwSGzXjrl
ykzXSG~yzX
zXzkjjsrp
zXzkjjsrv
ijWzXSGijXzX
ijYzXSGijZzX
yhzzXSGjhzzX
YnGuhukGR
XnGzkyGzkyht
XnGuhukGRG
\XYGzkyGzkyht
zYkh{hGWaX\
zYhkkGWaX^
uhukjzzY
yhtjzzY
zYmjkwSGGzYjrl
ykzYSG~yzY
zYzkjjsrpVv
ijWzYSGijXzY
yhzzYSGjhzzY
zYkh{hGWaX\
zYhkkGWaXY
ykzYSG~yzY
ijWzYSG
ijXzY
kwyhtjzzY
kwyhti|zzY
kwyhtzltzY
kwyhtpu{zY
zXkh{hGWaX\
zXhkkGWaXY
ykzXSG~yzX
ijWzXSG
ijXzX
kwyhtjzzX
kwyhti|zzX
kwyhtzltzX
kwyhtpu{zX
XY_rG
kwyht
i
wwy
lvj
jonlu
tv{G
k
ztXWW
skv
}
}pilu
sputv{vylu
spuw~tmylx
jG
w
hh{ZX]`
sjk
tslk
X¥]
sjkisj{ys
jG
j
zptXoztpju
zptXoztpjw
zptXzptY
zls
zptXtpju
zptXtpjw
zptXzptY
zls
zptXozzwry
zptXozzwrs
zptXzptY
zls
zptYoztpju
zptYoztpjw
zptYtpju
zptYtpjw
z~
z~ thpuGtpj
i{zls
zptXpYzXjsr
zptXpYzXy
zptXpYzX{
zptXpYzX~hW
zptYpYzXjsr
zptYpYzXy
zptYpYzX{
zptYpYzX~hW
i{Gzls
z
~shujtkVjsr
VzkpvWaZ
Vylzl{uVovz{~hrl
|wVmltylnvu
i{ovz{~hrl|w
|hy{i{y{z
VyV{Vj{z
ylnvu
jsrZYr
i{~hrl|w
jsrylx
wjtzuj
wjtjsr
wjty
wjt{
mtGh
i{Gh
zwrVyj}
mlt
stzw[Zuh
T^_Y
i
wht
h~l]X\^
{
wti]Y^Y
Y]to¡
Y]totjsr
ymjsrVkhVlu
xSGxSGpSGp
whtvkl
zXwhihuk
whsl}ls
{vuwh
mlXSGmlY
tGz
hu{
mlt
stzw[Zuh
T^_Y
wht
h~l]X\^
tGz
hu{
}jXSG}jY
nzt_\Wyw
nzt_\Wyu
nzt`WWyw
nzt`WWyu
nztX_WWyw
nztX_WWyu
nztX`WWyw
nztX`WWyu
{siSG{oi
whluSG{yhtw
zYwhihuk
whtvklY
znZzptX
yz{VG
jsrVpv
znyzptY
yz{VG
jsrVpv
ttjkl{
ttjkW
ttjjsr
ttjjtk
{zpyx
{jozkh
{jojsr
hjjlspu{
zkhSGzjs
{v|jo
{zjYWW^p
ny
{v|jo
iGGi
hjjlsG
zluzvy
ithWYZ
ZYU^]_ro¡
Y]to¡ ZYU^]_ro¡
wti____
kpmkWaX\
kpm}zujVjkV
jzVykV~yVylzl{
sjkpk
jhtkh{hWa^
jhtwjsrVozuj
V}zujVwkVylzl{
Vtjsr
pYjzjs
pYjzkh
htw
z|izz{lt
st[`X\X{s
t|pj
{z\|zi
hZZ[WY
|z~kt
|z~kw
|z~pk
\Gwpu
jvu
pYjzkh
pYjzjs
|z~pu{
jGpj
ixY\W[W
}i|z
yw~yvulu
}i|z
znZ
zptXpv
zptXyz{
zptXjsr
zny
zptYpv
zptYyz{
zptYjsr
ozvs
ozvy
oztpju
oztpjw
|zikw
|zikt
|hy{y
|hy{{
zptXyj}u
zptXyj}w
zptXzptY
zls
z~
zptYozzwry
zptYozzwrs
zptYyj}u
zptYyj}w
z~ ozzwrs
ozzwry
yj}u
yj}w
tpju
tpjw
zptX|hy{y
zptX|hy{{
|hy{zls
zptY|hy{y
zptY|hy{{
zptX|zikw
zptX|zikt
|zizls
zptY|zikw
zptY|zikt
wti]_YX
z~
z~
z~ mtozzwrs
mtozzwry
Y]to¡
~m h
mts
mty
rwpuWaYG
rwv|{WaZ
Figure 3-1. GX500 Functional Block diagram
- 18 -
LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
GX500 Operational Description Revision A
LG Electronics 18/143 LGE Property
3.2 Dual Baseband Processor (BBP) Introduction
GX500 is composed of dual Baseband Processor. (S-Gold3 & S-Gold Radio)
3.2.1 S-Gold3 Part
Figure3- 2. Top level block diagram of the S-GOLD3TM (PMB8877)
- 19 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. TECHNICAL BRIEF
GX500 Operational Description Revision A
LG Electronics 19/143 LGE Property
3.2.1.1 General Description
S-GOLD3TM is a GSM/EDGE single chip mixed signal Baseband IC containing all analog and digital functionality
of a cellular radio. Additionally S-GOLD3TM Provides multimedia extensions such as camera, software MIDI,
MP3 sound. It is designed as a single chip solution, integrating the digital and mixed signal portions of the
base band in 0.09um, 1.2V technology.
The chip will fully support the FR, EFR, HR and AMR-NB vocoding.
S-GOLD3TM support multi-slot operation modes HSCSD (up to class 10), GPRS for high speed data application
(up to class 12) and EGPRS (up to class 12) without additional external hardware.
3.2.1.2 Block Description
zProcessing core
ARM926EJ-S 32 bit processor core for controller functions. The ARM926EJ-S includes an MMU, and the
Jazelle Java extension for Java acceleration.
- TEAKLite DSP core
zARM-Memory
- 32k Byte Boot ROM on the AHB
- 96k Byte SRAM on the AHB, flexibly usable as program or data RAM
- 16k Byte Cache for Program (internal)
- 8k Byte tightly coupled memory for Program(internal)
- 8k Byte Cache for Data(internal)
- 8k Byte tightly coupled memory for Data(internal)
zDSP-Memory
- 104K x 16bit Program ROM
- 8k x 16bit Program RAM
- 60k x 16bit Data ROM
- 37k x 16bit Data RAM
- Incremental Redundancy(IR) Memory of 35904 words of 16bit
zShared Memory Block
1.5K x 32bit Shared RAM(dual ported) between controller system and TEAKLite.
zController Bus system
The processor cores and their peripherals are connected by powerful buses.
Multi-layer AHB for connecting the ARM and the other master capable building blocks with the internal
and external memories and with the peripheral buses.
zClock system
The clock system allows widely independent selection of frequencies for the essential parts of the S-GOLD3.
Thus power consumption and performance can be optimized for each application.
- 20 -
LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
GX500 Operational Description Revision A
LG Electronics 20/143 LGE Property
zFunctional Hardware block
- CPU and DSP Timers
- MOVE coprocessor performing motion estimation for video encoding algorithms
(H.263, MPEG-4)
- Programmable PLL with additional phase shifters for system clock generation
- GSM Timer Module that off-loads the CPU from radio channel timing
- GMSK / 8-PSK Modulator according to GSM-standard 05.04 (5/2000)
- GMSK Modulator: gauss-filter with B*T=0.3
- EDGE Modulator: 8PSK-modulation with linearized GMSK-Pulse-Filter
- Hardware accelerators for equalizer and channel decoding.
- Incremental Redundancy memory for EDGE class 12 support
- A5/1, A5/2, A5/3 Cipher unit
- GEA1, GEA2, GEA3 Cipher Unit to support GPRS data transmission
- Advanced static and dynamic power management features including TDMA-Frame
synchronous low power mode and enhanced CPU modes(idle and sleep modes)
- Pulse Number Modulation output for Automatic Frequency Correction(AFC)
- Serial RF Control interface: support of direct conversion RF
- A Universal Serial Interface(USIF) enabling asynchronous (UART) of synchronous (SPI)
serial data transmission
- 3 USIF with autobaud detection, hardware flow control and integrated
- A dedicated Fas IfDA Controller supporting IrDA’s SIR,MIR and FIR standards
(up to 4Mbps)
- I2C-bus interface (e.g. connection to S/M power)
- A fast display interface supporting serial and parallel interconnection
- An ITU-R BT.656 compatible Camera interface.
- Programmable clock output for a camera
- An multimedia/Secure Digital Card Interface (MMCI/SD:SDIO capable)
3.2.1.3 External Devices connected to memory interface
Table 3-1. Memory interface
Device Name Maker Remark
NAND FLASH H8ACS0SJ0MCP-56M Hynix
SDR H8ACS0SJ0MCP-56M Hynix
LCD
DPRAM
- 21 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. TECHNICAL BRIEF
GX500 Operational Description Revision A
LG Electronics 21/143 LGE Property
3.2.1.4 RF Interface (T_OUT)
S-Gold3 uses this interface to control RF IC and Peripherals. 13 signals are provided switch on/off RF ICs
Periodically each TDMA frame.
Table 3-2. RF Interface Spec.
T_OUT
Resource Interconnection Description
T_OUT0 TXON_PA PAM Power on
T_OUT1 FE2 FEM Control
T_OUT2 PA_BAND TX RF band select
T_OUT3 FE1 FEM control
T_OUT6 PA_MODE PAM Mode select
3.2.1.5 USIF Interface
GX500 have three USIF Drivers as follow :
- USIF1 : Hardware Flow Control / SW upgrade / Calibration
- USIF2 : Not used Rx, Tx and CTS, RTS use BT Interface
- USIF3 : BT Interface
Table 3-3. USIF Interface Spec.
3.2.1.6 ADC channel
BBP ADC block is composed of 10 external ADC channel. This block operates charging process and other
related process by reading battery voltage and other analog values.
Table 3-4. S-Gold3 ADC channel usage
ADC channel
Resource Interconnection Description
M0 BAT_ID Battery temperature measure
M1 RF_TEMP RF block temperature measure
M8 VSUPPLY Battery supply voltage measure
Resource Name Remark
USIF1
USIF1_TXD SIM1_UART_TX Transmit Data
USIF1_RXD SIM1_UART_RX Receive Data
USIF1_CTS USB_SE0_VM USB
USIF1_RTS USB_DAT_VP USB
USIF2
USIF2_CTS SIM1_BT_CTS BlueTooth
USIF2_RTS SIM1_BT_RTS. BlueTooth
USIF3
USIF3_TXD SIM1_BT_TX BT Transmit tx
USIF3_RXD SIM!_BT_RX BT Receive rx
Other manuals for GX500
5
Table of contents
Other LG Cell Phone manuals
