LG KP330 User manual

Service Manual Model : KP330
Internal Use Only
Service Manual
KP330
Date: January, 2009 / Issue 1.0

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Copyright © 2008 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
2. PERFORMANCE............................................... 7
3. TECHNICAL BRIEF......................................... 20
3.1 General Description ..................................................20
3.2 GSM/EDGE receive specifications ...............................23
3.3 WCDMA primary receive signal path specifications ......29
3.4 WCDMA transmit signal path specifications.................32
3.5 LO Phase-locked Loop...............................................34
3.6 Off-chip RF Components............................................36
3.7 Digital Baseband (DBB/MSM6260) .............................47
3.8 Subsystem(MSM6260) ..............................................50
3.9 Power Block..............................................................58
3.10 External memory interface .......................................63
3.11 H/W Sub System .....................................................64
3.12 LG-KP330 Main features .........................................80
4. TROUBLE SHOOTING.....................................81
4.1 RF Component ..........................................................81
4.2 Checking TCXO Block ................................................84
4.3 Checking Ant. SW Module Block.................................86
4.4 Checking TX POWER of UMTS 2100MHz ....................88
4.5 Checking TX POWER of UMTS 1900MHz ....................91
4.6 Checking TX POWER of UMTS 850MHz ......................94
4.7 Checking UMTS 2100 PAM Control Block ...................97
4.8 Checking UMTS 1900/850 Dual PAM Control Block ....98
4.9 Checking UMTS 2100/1900/850 Rx Level..................99
4.10 Checking GSM Block .............................................102
4.11 Checking Ant. SW Module......................................103
4.12 Checking PAM Block..............................................106
4.13 Checking GSM Rx Block.........................................107
4.14 BLUETOOTH Checking Block ..................................110
4.15 Power on trouble ...................................................112
4.16 Charger TROUBLE SHOOTING ................................118
4.17 USB trouble...........................................................123
4.18 SIM detect trouble .................................................127
4.19 Keypad Backlight Troubleshooting...........................129
4.20 Audio Troubleshooting............................................131
5. Download Instruction ................................ 146
5.1 Preparation .............................................................146
5.2 Downloading Procedure...........................................146
6. Block Diagram ........................................... 151
7. CIRCUIT DIAGRAM...................................... 159
8. BGA Pin Map ..............................................167
9. PCB LAYOUT ...............................................171
10. CALIBRATION............................................ 177
10.1 Usage of Hot-Kimchi..............................................177
11. EXPLODED VIEW & REPLACEMENT
PART LIST ................................................. 181
11.1 EXPLODED VIEW ...................................................181
11.2 Replacement Parts ................................................183
11.3 Accessory .............................................................206

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LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

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Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. INTRODUCTION
1. INTRODUCTION
1.1 Purpose
This manual provides the information necessary to repair, calibration, description and download the
features of this model.
1.2 Regulatory Information
A. 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 for 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. The manufacturer 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. The manufacturer will not
be responsible for any charges that result from such unauthorized use.
B. 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.
C. 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 phones or compatibility with the net
work, the telephone company is required to give advanced written notice to the user, allowing the user
to take appropriate steps to maintain telephone service.

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LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
1. INTRODUCTION
D. Maintenance Limitations
Maintenance limitations on the phones must be performed only by the manufacturer or its authorized
agent. 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.
E. Notice of Radiated Emissions
This model 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.
F. Pictures
The pictures in this manual are for illustrative purposes only; your actual hardware may look slightly
different.
G. Interference and Attenuation
A phone may interfere with sensitive laboratory equipment, medical equipment, etc. Interference from
unsuppressed engines or electric motors may cause problems.
H. Electrostatic Sensitive Devices
ATTENTION
Boards, which contain 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 like EEPROM to the factory, use the protective package as
described.

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Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. PERFORMANCE
2. PERFORMANCE
1.1 Product Name
KP330
zGSM850(Power Class 4) / GSM900(Power Class 4) /
DCS1800(Power Class 1) / PCS1900(Power Class 1) /
GPRS(Class 12, Type B)
zWCDMA850/1900/2100(Power Class 3, AMR Coding)
1.2 Supporting Standard
Item Feature Comment
Supporting
Standard
GSM850/EGSM/DCS1800/PCS1900
WCDMA850/1900/2100
SIM AT (Class 3)
GSM850 TX 824 – 849 MHz
GSM850 RX 869 – 894 MHz
EGSM TX 880 – 915 MHz
EGSM RX 925 – 960 MHz
DCS1800 TX 1710 – 1785 MHz
DCS1800 RX 1805 – 1880 MHz
PCS1900 TX 1850 – 1910 MHz
PCS1900 RX 1930 – 1990 MHz
Frequency Range
W-850 TX 824 – 849 MHz
W-850 RX 869 – 894 MHz
W-1900 TX 1850 – 1910 MHz
W-1900 RX 1930 – 1990 MHz
W-2100 TX 1920 – 1980 MHz
W-2100 RX 2110 – 2170 MHz
Application
Standard
NetFront v3.2, DoJa 2.5
1.3 Main Parts : GSM / WCDMA Solution
Item Part Name Comment
Modem MSM6260
PMIC PM6658
RF Transmitter RTR6285
Qualcomm Solution

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LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
2. PERFORMANCE
1.4 HW Features
1.4.1 System Overview
Item Specification Comme
nt
Shape TFT Main_LCD & Mono Sub LCD/Clam Shell Folder
Type
Size 96 x 49.5 x 18.3mm
Weight 100.5 g (with 900 mAh Battery)
Power 3.7V normal, 900 mAh Lithium Ion
Talk Time
(with 900mAh)
Over 180 Min (WCDMA, Tx=13dBm, Voice Call)
Over 100 Min (WCDMA, Tx=13dBm, Video Call)
Over 190 Min (GSM, Tx=29dBm, Voice Call)
Stand by Time
(with 900mAh)
WCDMA Stand by: Over 333 hrs (WCDMA only mode)
GSM Stand by: Over 333 hrs (GSM only mode)
Antenna Internal Antenna
LCD TFT Main LCD(2’, 176 X 220 pixel)
Mono Sub LCD(1.3’, 128X160)
LCD Backlight White
Camera Inner (VGA) / Outer (1.3M CMOS) – Dual Camera
Vibrator Yes (10 pie Coin cell type)
MIC Yes
Receiver Yes
Earphone Jack Yes
Connectivity USB 1.1 Bluetooth
Volume Key Push Type(+, -)
External
Memory Micro SD
I/O Connect 18 Pin
1.4.2 Usable environment
1) Environment
Item Specification Comment
Voltage 3.7 V(Typ), 3.2 V(Min), [Shut Down : 3.28 V]
Operation Temp -20 ~ +60 ℃
Storage Temp -20 ~ +70 ℃
Humidity 85 % (Max)

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Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. PERFORMANCE
2) Environment (Accessory)
Reference Spec. Min Typ. Max Unit
TA Power Available power 85 220 264 Vac
1.4.3 Radio Performance
1) Transmitter - GSM Mode
No Item GSM850/EGSM DCS & PCS
9k~1GHz -39dBm
100k~1GHz -39dBm 1G~[A]MHz -33dBm
[A]M~[B]MHz -39dBm
MS
allocated
Channel 1G~12.75GHz -33dBm [B]M~12.75GHz -33dBm
100k~880MHz -60dBm 100k~880MHz -60dBm
880M~915MHz -62dBm 880M~915MHz -62dBm
915M~1GHz -60dBm 915M~1GHz -60dBm
1G~[A]MHz -50dBm 1G~[A]MHz -50dBm
[A]M~[B]MHz -56dBm [A]M~[B]MHz -56dBm
1
Conducted
Spurious
Emission
Idle
Mode
[B]M~12.5GHz -50dBm [B]M~12.5GHz -50dBm
30M~1GHz -36dBm
30M~1GHz -36dBm 1G~[A]MHz -30dBm
[A]M~[B]MHz -36dBm
MS
allocated
Channel 1G~4GHz -30dBm [B]M~4GHz -30dBm
30M~880MHz -57dBm 30M~880MHz -57dBm
880M~915MHz -59dBm 880M~915MHz -59dBm
915M~1GHz -57dBm 915M~1GHz -57dBm
1G~[A]MHz -47dBm 1G~[A]MHz -47dBm
[A]M~[B]MHz -53dBm [A]M~[B]MHz -53dBm
2
Radiated
Spurious
Emission
Idle
Mode
[B]M~4GHz -47dBm [B]M~4GHz -47dBm
3 Frequency Error
±0.1ppm ±0.1ppm
±5(RMS) ±5(RMS)
4 Phase Error
±20(PEAK) ±20(PEAK)
3dB below reference
sensitivity
3dB below reference
sensitivity
RA250 : ±200Hz RA250 : ±250Hz
HT100 : ±100Hz HT100 : ±250Hz
TU50 : ±100Hz TU50 : ±150Hz
5
Frequency Error
Under Multipath and
Interference
Condition
TU3 : ±150Hz TU1.5: ±200Hz
*In case of DCS : [A] -> 1710, [B] -> 1785 * In case of PCS : [A] -> 1850, [B] ->
1910

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LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
2. PERFORMANCE
No Item GSM850/EGSM DCS & PCS
0~100kHz +0.5dB 0~100kHz +0.5dB
200kHz -30dB 200kHz -30dB
250kHz -33dB 250kHz -33dB
400kHz -60dB 400kHz -60dB
600~1800kHz -66dB 600~1800kHz -60dB
1800~3000kHz -69dB 1800~6000kHz -65dB
3000~6000kHz -71dB ≥6000kHz -73dB
Due to
Modulation
≥6000kHz -77dB
400kHz -19dB 400kHz -22dB
600kHz -21dB 600kHz -24dB
1200kHz -21dB 1200kHz -24dB
6
Output
RF
Spectrum
Due to
Switching
Transient
1800kHz -24dB 1800kHz -27dB
Frequency
offset 800kHz
7Intermodulation
attenuation −Intermodulation product
should be less than 55dB
below the level of wanted
signal
Power
control Power Tolerance Power control Power Tolerance
Level (dBm) (dB) Level (dBm) (dB)
533 ±3 030 ±3
631 ±3 128 ±3
729 ±3 226 ±3
827 ±3 324 ±3
925 ±3 422 ±3
10 23 ±3 5 20 ±3
11 21 ±3 6 18 ±3
12 19 ±3 7 16 ±3
13 17 ±3 8 14 ±3
14 15 ±3 9 12 ±4
15 13 ±3 10 10 ±4
16 11 ±5 11 8 ±4
17 9 ±5 12 6 ±4
18 7 ±5 13 4 ±4
19 5 ±5 14 2 ±5
8Transmitter Output
Power
15 0 ±5
9 Burst timing Mask In Mask In

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Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. PERFORMANCE
2) Transmitter - WCDMA Mode
No Item Specification
1 Maximum Output Power Class 3 : +24dBm(+1/-3dB)
2 Frequency Error ±0.1ppm
3Open Loop Power Control in
Uplink ±9dB@normal, ±12dB@extreme
4Inner Loop Power Control in
Uplink
Adjust output(TPC command)
cmd 1dB 2dB 3dB
+1 +0.5/1.5 +1/3 +1.5/4.5
0 -0.5/+0.5 -0.5/+0.5 -0.5/+0.5
-1 -0.5/-1.5 -1/-3 -1.5/-4.5
Group(10 equel command group)
+1 +8/+12 +16/+24
5 Minimum Output Power -50dBm(3.84MHz)
6Out-of-synchronization handling
of output power
Qin/Qout : PCCH quality levels
Toff@DPCCH/Ior : -22 -> -28dB
Ton@DPCCH/Ior : -24 -> -18dB
7 Transmit OFF Power -56dBm(3.84MHz)
8 Transmit ON/OFF Time Mask
±25us
PRACH,CPCH,uplinlk compressed
mode
9 Change of TFC
±25us
Power varies according to the data rate
DTX : DPCH off
(minimize interference between UE)
10 Power setting in uplink
compressed ±3dB(after 14slots transmission gap)
11 Occupied Bandwidth(OBW) 5MHz(99%)
12 Spectrum Emission mask
-35-15*(Δf-
2.5)dBc@Δf=2.5~3.5MHz,30k
-35-1*(Δf-3.5)dBc@Δf=3.5~7.5MHz,1M
-39-10*(Δf-
7.5)dBc@Δf=7.5~8.5MHz,1M
-49dBc@Δf=8.5~12.5MHz,1M
13 Adjacent Channel Leakage Ratio
(ACLR)
33dB@5MHz, ACP>-50dBm
43dB@10MHz, ACP>-50dBm

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LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
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2. PERFORMANCE
14 Spurious Emissions
(*:additional requirement)
-36dBm@f=9~150KHz, 1K BW
-36dBm@f=50KHz~30MHz, 10K BW
-36dBm@f=30MHz~1000MHz, 100K
BW
-30dBm@f=1~12.5GHz, 1M BW
(*)-41dBm@f=1893.5~1919.6MHz,
300K
(*)-67dBm@f=925~935MHz, 100K BW
(*)-79dBm@f=935~960MHz, 100K BW
(*)-71dBm@f=1805~1880MHz, 100K
BW
15 Transmit Intermodulation -31dBc@5MHz,Interferer -40dBc
-41dBc@10MHz, Interferer -40dBc
16 Error Vector Magnitude (EVM) 17.5%(>-20dBm)
(@12.2K, 1DPDCH+1DPCCH)
17 Transmit OFF Power -15dB@SF=4.768Kbps,
Multi-code transmission
3) Receiver - GSM Mode
No Item GSM DCS & PCS
1 Sensitivity (TCH/FS Class
Ⅱ
)-102dBm -102dBm
2
Co-Channel Rejection
(TCH/FS Class
Ⅱ
,
RBER, TU high/FH)
C/Ic=7dB Storage -30 ~ +85
200KHz C/la1=-12dB C/la1=-12dB
3
Adjacent
Channel
Rejection 400KHz C/la2=-44dB C/la2=-44dB
4 Intermodulation Rejection
Wanted Signal :-
98dBm
1st interferer:-44dBm
2nd interferer:-45dBm
Wanted Signal :-
96dBm
1st interferer:-44dBm
2nd interferer:-44dBm
5Blocking Response
(TCH/FS Class , RBER)

Wanted Signal :-
101dBm
Unwanted : Depend
on Frequency
Wanted Signal :-
101dBm
Unwanted : Depend
on Frequency

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Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. PERFORMANCE
4) Receiver – WCDMA Mode
No Item Specification
1 Reference Sensitivity Level -106.7 dBm(3.84 MHz)
2 Maximum Input Level
-25dBm(3.84MHz)
-44dBm/3.84MHz(DPCH_Ec)
UE@+20dBm output power(Class3)
3 Adjacent Channel Selectivity (ACS) 33dB
UE@+20dBm output power(Class3)
-56dBm/3.84MHz@10MHz
UE@+20dBm output power(Class3)
4 In-band Blocking
-44dBm/3.84MHz@15MHz
UE@+20dBm output power(Class3)
-44dBm/3.84MHz@f=2050~2095
and 2185~2230MHz
UE@+20dBm output power(Class3)
-30dBm/3.84MHz@f=2025~2050
and 2230~2255MHz
UE@+20dBm output power(Class3)
5 Out-band Blocking
-15dBm/3.84MHz@f=1~2025 and
2255~12500MHz
UE@+20dBm output power(Class3)
6 Spurious Response -44dBm CW
UE@+20dBm output power(Class3)
7 Intermodulation Characteristic
-46dBm CW@10MHz
-46dBm/3.84MHz@20MHz
UE@+20dBm output power(Class3)
8 Spurious Emissions
-57dBm@f=9KHz~1GHz, 100K BW
-47dBm@f=1~12.5GHz, 1M BW
-60dBm@f=1920MHz~1980MHz,
3.84M BW
-60dBm@f=2110MHz~2170MHz,
3.84M BW

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LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
2. PERFORMANCE
1.5 Current Consumption
Stand by Voice Call VT
WCDMA
333hrs ↑= 4mA ↓
(1000mAh battery,
DRX cycle=1.28)
180mins ↑= 300mA ↓
(1000mAh battery,
Tx=13dBm)
100mins ↑= 500mA ↓
(1000mAh battery,
Tx=13dBm)
Stand by Voice Call
GSM
333 hrs ↑= 4mA ↓
(1000mAh battery,
Paging frame class5)
190mins ↑= 310mA ↓
(1000mAh battery,
Tx = Level 5)
(Stand by and Voice Call Test Condition : LCD backlight Off)
(VT Test Condition : Speaker off, LCD backlight On)
1.6 Antenna BAR
Antenna Bar WCDMA GSM
BAR 5 -87 ± 2dBm ↑-85 ± 2dBm ↑
BAR 5 →4 -87 ± 2dBm -85 ± 2dBm
BAR 4 →3 -92 ± 2dBm -90 ± 2dBm
BAR 3 →2 -97 ± 2dBm -95 ± 2dBm
BAR 2 →1 -100 ± 2dBm -100 ± 2dBm
BAR 1 →0 -103 ± 2dBm -105 ± 2dBm
.

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Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. PERFORMANCE
1.7 Battery BAR
Indication Voltage
Bar 3 3.73 ± 0.05V ↑
Bar 3 →2 3.73 ± 0.05V
Bar 2 →1 3.64 ± 0.05V
Bar 1 →Empty 3.56 ± 0.05V
Low Voltage,
Warning message+ Blinking
3.35 ± 0.05V ([Interval : 30sec(Talk)] – 5%
3.32 ± 0.05V ([Interval : 2min(Stand by)] – 3%
Power Off 3.28 ± 0.05V ↓(else)

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2. PERFORMANCE
12
No Test Item Specification
1Sending Loudness Rating
(SLR) 8 ± 3 dB
Nor 2 ± 3 dB
2Receiving Loudness
Rating (RLR) Max -10 ± 3 dB
3Side Tone Masking Rating
(STMR) 17 dB
4 Echo Loss (EL) 46 dB
5 Sending Distortion (SD) Refer to Table 30.3
6 Receiving Distortion (RD) Refer to Table 30.4
7 Idle Noise-Sending (INS) Max -64 dBm0p
Nor Under -57 dBPA
8 Idle Noise-Receiving (INR)
MS
Max Under -54 dBPA
9Sending Loudness Rating
(SLR) 8 ± 3 dB
Nor -1 ± 3 dB
10 Receiving Loudness
Rating (RLR) Max -12 ± 3 dB
11 Side Tone Masking Rating
(STMR) Min 25 dB
12 Echo Loss (EL) Min 40 dB
13 Sending Distortion (SD) Refer to Table 30.3
14 Receiving Distortion (RD) Refer to Table 30.4
15 Idle Noise-Sending (INS) Max -55 dBm0p
Nor Under -45 dBPA
16 Idle Noise-Receiving (INR)
Headset
Max Under -40 dBPA
17
TDMA Noise
-. GSM : Power Level : 5
DCS/PCS : Power Level :
0
(Cell Power : -90 ~ -105 dBm)
MS and
Headset Max -62 dBm
1.8 Sound Pressure Level

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Copyright © 2008 LG Electronics. Inc. All right reserved.
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LGE Internal Use Only
2. PERFORMANCE
-. Acoustic (Max Vol.)
MS/Headset SLR : 8 ± 3dB
MS/Headset RLR : -15 ± 3dB /
-12dB
(SLR/RLR : Mid-value setting)
1.9 Charging
-. Charging Method : CC & CV (Constant Current and Constant Voltage)
-. Maximum Charging Voltage : 4.2 V
-. Normal Charging Current : 600 mA
-. Normal Battery Capacity : 900 mAh
-. Charging Time : Max 3 hours (except for trickle charging time)
-. Full charging indication current (charging icon stop current) : 90 mA
-. Cut-off voltage : 3.28 V

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LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
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2. PERFORMANCE
1.10 SW Features
Item Feature Comment
RSSI 0 ~ 5 Levels
Battery Charging 0 ~ 3 Levels
Key Volume 0 ~ 7 Level
Audio Volume 0 ~ 7 Level
Time / Date Display Yes
Multi-Language Yes English/France/
Quick Access Mode Camera / Favorite
PC Sync Phonebook /BookMark/
Download(Photo, file , Melody)
Speed Dial Yes (0~9) Two Touch.
(Number + Send Key)
Profile Yes
CLIP / CLIR Yes
Phone Book 5 Numbers + 1 Memo + 3 e-mail +
Group Select + Picture+ ringtone +
email tone + URL + Postal Code +
Home Addr + Company Name +
Job Title + Company Addr + Memo
Total 500 Member
Last Dial Number Yes Redial (30)
Last Received
Number
Yes
Last Missed Number Yes
Search by Number
/ Name
Yes
Group 30 Possible Rename
Fixed Dial Number No
Service Dial Number Yes
Own Number Ye s
Voice Memo No
Call Reminder No
Network Selection Yes
Mute Yes
Call Divert No BAIC Roaming Only
Call Barring Yes
Call Charge (AoC) No
Call Duration Yes
SMS (EMS) SMS(400) Only
SMS Over GPRS Yes
EMS Melody / Picture
Send / Receive / Save
No
MMS MPEG4 / Send /
Receive / Save
No
Long Message No
Cell Broadcast No
Download Over the AIR
Game YES
Calendar Yes

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Copyright © 2008 LG Electronics. Inc. All right reserved.
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2. PERFORMANCE
Memo 50
World Clock Yes
Unit Convert Currency/Surface/Length/Volume/
Weight/Temperature/Velocity
Tip Calculator Calculator
Wall Paper Yes
WAP Browser NetFront v3.2 i-mode
Download Melody /
Wallpaper
Yes i-mode
SIM Lock Yes Operator Dependent
SIM Toolkit Yes. (Terminal Profile, Fetch ,
Terminal Response , SMS-
PP Download , Refresh,
Send SMS , Display Text,
Play Tone)
MMS No
EONS No
CPHS No
ENS No
Camera Yes Out : 1.3M , In : 0.3M
Digital Zoom : x4
JAVA Yes DoJa 2.5
Voice Dial Yes Japaness/English/Korean
IrDa No
Blue tooth Yes
GPRS Yes
Hold / Retrieve Yes
Conference Call No
DTMF Yes
Memo pad No
TTY No
AMR Yes
Sync ML No
IM No
Email Yes i-mode

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LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
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3. TECHNICAL BRIEF
3. TECHNICAL BRIEF

3.1 General Description
The KP330 supports UMTS-850, UMTS-1900, UMTS-2100, GSM-850, GSM-900,
DCS-1800, and PCS-1900 based GSM/GPRS/EDGE/UMTS. All receivers and the
UMTS transmitter use the radioOne1Zero-IF architecture to eliminate intermediate
frequencies, directly converting signals between RF and baseband. The quad-band
GSM transmitters use a baseband-to-IF upconversion followed by an offset phase-
locked loop that translates the GMSK-modulated or 8-PSK-modulated signal to RF.
Fig 1.1 Block diagram of RF part

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Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. TECHNICAL BRIEF


A generic, high-level functional block diagram of KP330 is shown in Figure 1.1. One
antenna collects base station forward link signals and radiates handset reverse link
signals. The antenna connects with receive and transmit paths through a FEM(Front
End Module) (plus three duplexers for UMTS-850, UMTS-1900 and UMTS-2100
operations).
KP330 power supply voltages are managed and regulated by the PM6658 Power
Management IC. This versatile device integrates all wireless handset power
management, general housekeeping, and user interface support functions into a single
mixed signal IC. It monitors and controls the external power source and coordinates
battery recharging while maintaining the handset supply voltages using low dropout,
programmable regulators.
The device’s general housekeeping functions include an ADC and analog multiplexer
circuit for monitoring on-chip voltage sources, charging status, and current flow, as
well as user-defined off-chip variables such as temperature, RF output power, and
battery ID. Various oscillator, clock, and counter circuits support IC and higher-level
handset functions. Key parameters such as under-voltage lockout and crystal
oscillator signal presence are monitored to protect against detrimental conditions.
3.1.1 Primary receive signal paths
The RTR6285/6280 receive paths include four GSM/EDGE Rx signal paths that support GSM
850, GSM 900, GSM 1800, and GSM 1900 bands and four WCDMA Rx signal paths (two
single-ended and two differential) for one UMTS low-band and three UMTS high bands.
The quad-band GSM/EDGE Rx paths start from the handset front-end circuits (GSM Rx filters
and antenna switch module). The four differential inputs are amplified with gain-stepped LNA
circuits. Gain control is provided through software and serial interface. The LNA outputs drive
the RF ports of quadrature RF-to-baseband downconverters. The downconverted baseband
outputs are multiplexed and routed to lowpass filters (one I and one Q) whose passband and
stopband characteristics supplement MSM device processing. These filter circuits allow DC
offset corrections, and their differential outputs are buffered to interface with the MSM IC.
The two RTR6285/6280 UMTS single-ended inputs accept UMTS 2100/1900/1800/1700 input
signals from the handset RF front-end filters. The UMTS Rx inputs are provided with on-chip
LNAs that amplify the signal before second-stage filters that provide differential signals to a