LG KE600 User manual

Date: October, 2006 / Issue 1.0
Service Manual Model : KE600
Service Manual
KE600

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* The information in this manual is subject to change without notice and should not be construed as a
commitment by LGE Inc. Furthermore, LGE Inc. reserves the right, without notice, to make changes
to equipment design as advances in engineering and manufacturing methods warrant.
* This manual provides the information necessary to install, program, operate and maintain the
KE600/KE608.
REVISED HISTORY
Editor Date Issue Contents of Changes S/W Version
S. H. RYU 2006/07/06 0.1 Initial Release
S. H. RYU 2006/08/24 0.2 The second Release
S. H. RYU 2006/10/16 1.0 Final Release

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1. INTRODUCTION ...............................7
1.1 Purpose .................................................. 7
1.2 Regulatory Information............................ 7
1.3 ABBREVIATION ..................................... 9
2. PERFORMANCE .............................11
2.1 H/W Features.........................................11
2.2 Technical specification...........................12
3. TECHNICAL BRIEF ........................19
3.1 KE600 / KE608 Component
Block diagram. .......................................19
3.2 Baseband Processor (BBP)
Introduction ............................................21
3.3 Power management IC ..........................33
3.4 Power ON/OFF ......................................39
3.5 SIM interface..........................................40
3.6 Memory..................................................41
3.7 LCD Display...........................................42
3.8 Keypad Switching & Scanning...............43
3.9 Keypad back-light illumination ...............44
3.10 LCD back light illumination...................46
3.11 Battery current consumption monitor...48
3.12 JTAG & ETM interface connector ........48
3.13 Audio....................................................49
3.14 USB charging circuit ............................52
3.15 FM radio with RDS function .................53
3.16 BLUETOOTH.......................................54
3.17 Micro SD external memory card slot....58
3.18 12pin Multi Media Interface connector.60
3.19 General Description .............................62
3.20 Receiver part........................................64
3.21 Transmitter part....................................64
3.22 RF synthesizer.....................................66
3.23 VCTCXO..............................................66
3.24 Front End Module control.....................67
3.25 Power Amplifier Module.......................67
3.26 Dual Mode Operation...........................68
4. PCB layout......................................69
4.1 Main & Sub PCB component
placement ..............................................69
5. Trouble shooting............................76
5.1 Trouble shooting test setup....................76
5.2 Power on Trouble...................................76
5.3 Charging trouble ....................................80
5.4 LCD display trouble................................82
5.5 Camera Trouble.....................................83
5.6 Speaker trouble......................................86
5.7 Receiver trouble.....................................88
5.8 Microphone trouble ................................90
5.9 Vibrator trouble ......................................92
5.10 Keypad back light trouble.....................94
5.11 SIM card trouble...................................96
5.12 MicroSD trouble ...................................98
5.13 Bluetooth trouble..................................99
5.14 FM Radio trouble ...............................101
5.13 RF PART TROUBLESHOOTING ......103
6. Download & S/W upgrade...............116
6.1 S/W download setup............................116
6.2 Download program user guide.............117
7. CIRCUIT DIAGRAM ......................121
8. PCB LAYOUT................................127
9. RF Calibration ..............................133
9.1 Test Equipment Setup .........................133
9.2 Calibration Steps..................................133
10. Stand-alone Test ........................139
11. ENGINEERING MODE ................143
12. EXPLODED VIEW &
REPLACEMENT PART LIST ..... 145
12.1 Exploded View .................................. 145
12.2 Replacement Parts ............................147
12.3 Accessory ......................................... 167
Table Of Contents

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1. INTRODUCTION
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1.1 Purpose
This manual provides the information necessary to repair, calibration, description and download the
features of the KE600/KE608.
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 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.
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 KE600/KE608 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.
D. Maintenance Limitations
Maintenance limitations on the KE600/KE608 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. INTRODUCTION

1. INTRODUCTION
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E. Notice of Radiated Emissions
The KE600/KE608 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
An KE600/KE608 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 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.

1. INTRODUCTION
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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

1. INTRODUCTION
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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
VCO Voltage Controlled Oscillator
VCTCXO Voltage Control Temperature Compensated Crystal Oscillator
WAP Wireless Application Protocol
8PSK 8 Phase Shift Keying

2. PERFORMANCE
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2.1 H/W Feature
2. PERFORMANCE
Item Feature Comment
Li-Poly, 950mAh
Standard Battery Battery
Size :36.50(W)x58.50(H)x3.65(T)[mm]
AVG TCVR Current 280mA PL5
Standby Current <2.7 mA @PP9
Talk time Up to 3 hours (GSM900,TX Level :5)
Standby time Up to 220 hours (Paging period :9, RSSI: -85dBm )
Charging time Under 3 hours
RX Sensitivity GSM900 : -105dBm, DCS/PCS : -105dBm
TX output power GSM900: 32.5dBm (Level 5)
DCS/PCS: 29.8dBm (Level 0)
GPRS compatibility Class 10
SIM card type 3V Plug in Type
Display 240 x 320 pixels, 2 inch wide, 262K color, TFT
Soft icons
Key Pad
Status Indicator 0 ~ 9, #, *, Navigation wheel type Key,
Up/Down Side Key, Camera Side key,
END/PWR Key, MP3 Key,
ANT Internal Type
EAR Phone Jack 12pin multi port Headset jack with Remote controller
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

2. PERFORMANCE
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2.2 Technical specification
Item Description Specification
GSM900
TX: 890 + 0.2 x n MHz
RX: 935 + 0.2 x n MHz ( n = 1 ~ 124 )
EGSM
1Frequency Band TX: 890 + 0.2 x (n-1024) MHz
RX: 935 + 0.2 x (n-1024) MHz ( n = 975 ~ 1023 )
DCS1800
TX: 1710 + ( n-511 ) x 0.2 MHz (n = 512 ~ 885)
RX: TX + 95 MHz
PCS1900
TX: 1850.2 + ( n-512 ) x 0.2 MHz (n = 512 ~ 810)
RX: TX + 80MHz
2Phase Error RMS < 5 degrees
Peak < 20 degrees
3Frequency Error < 0.1ppm
GSM900/EGSM
Level Power Toler. Level Power Toler.
533 dBm 2dB 13 17 dBm 3dB
631 dBm 3dB 14 15 dBm 3dB
729 dBm 3dB 15 13 dBm 3dB
827 dBm 3dB 16 11 dBm 5dB
925 dBm 3dB 17 9 dBm 5dB
10 23 dBm 3dB 18 7 dBm 5dB
11 21 dBm 3dB 19 5 dBm 5dB
4Power Level 12 19 dBm 3dB
DCS1800/PCS1900
Level Power Toler. Level Power Toler.
030 dBm 2dB 8 14 dBm 3dB
128 dBm 3dB 9 12 dBm 4dB
226 dBm 3dB 10 10 dBm 4dB
324 dBm 3dB 11 8 dBm 4dB
422 dBm 3dB 12 6 dBm 4dB
520 dBm 3dB 13 4 dBm 4dB
618 dBm 3dB 14 2 dBm 5dB
716 dBm 3dB 15 0 dBm 5dB

2. PERFORMANCE
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Item Description Specification
GSM900/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
5Output RF Spectrum 6,000 -71
(due to modulation) 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
6,000 -73
GSM900/EGSM
Offset from Carrier (kHz) Max. (dBm)
Output RF Spectrum 400 -19
6(due to switching transient) 600 -21
1,200 -21
1,800 -24

2. PERFORMANCE
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Item Description Specification
DCS1800/PCS1900
Offset from Carrier (kHz). Max. (dBm)
Output RF Spectrum 400 -22
6(due to switching transient) 600 -24
1,200 -24
1,800 -27
7Spurious Emissions Conduction, Emission Status
GSM900/EGSM
8Bit Error Ratio BER (Class II) < 2.439% @-102dBm
DCS1800/PCS1900
BER (Class II) < 2.439% @-100dBm
9Rx Level Report accuracy 3 dB
10 SLR 8 3 dB
Frequency (Hz) Max.(dB) Min.(dB)
100 -12 -
200 0 -
300 0 -12
11 Sending Response 1,000 0 -6
2,000 4 -6
3,000 4 -6
3,400 4 -9
4,000 0 -
12 RLR 2 3 dB
Frequency (Hz) Max.(dB) Min.(dB)
100 -12 -
200 0 -
300 2 -7
500 *-5
13 Receiving Response 1,000 0 -5
3,000 2 -5
3,400 2 -10
4,000 2
*Mean that Adopt a straight line in between 300 Hz
and 1,000 Hz to be Max. level in the range.

2. PERFORMANCE
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Item Description Specification
14 STMR 13 5 dB
15 Stability Margin > 6 dB
dB to ARL (dB) Level Ratio (dB)
-35 17.5
-30 22.5
-20 30.7
16 Distortion -10 33.3
033.7
731.7
10 25.5
17 Side tone Distortion Three stage distortion < 10%
18 <Change> System frequency 2.5ppm
(26 MHz) tolerance
19 <Change>32.768KHz tolerance 30ppm
Standby
20 Power consumption - Normal 3 mA(@PP9)
21 Talk Time GSM900/Lvl 5 (Battery Capacity 950mA):240 min
GSM900/Lvl 12(Battery Capacity 950 mA):420 min
Under conditions, at least 200 hours:
1. Brand new and full 950mAh battery
22 Standby Time 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.
At least 65 dB under below conditions:
23 Ringer Volume 1. Ringer set as ringer.
2. Test distance set as 50 cm
24 Charge Current Fast Charge : < 600 mA
Slow Charge: < 120 mA
Antenna Bar Number Power
5-85 dBm ~
4-90 dBm ~ -86 dBm
25 Antenna Display 3 -95 dBm ~ -91 dBm
2-100 dBm ~ -96 dBm
1-105 dBm ~ -101 dBm
0~-105 dBm

2. PERFORMANCE
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Item Description Specification
Battery Bar Number Voltage( 0.05V)
43.86V~4.2V
26 Battery Indicator 3 3.75V~3.85V
23.75V~3.69V
13.69V~3.58V
03.58V~
27 Low Voltage Warning 3.58V↓0.05V (Call)
3.50V↓0.05V (Standby)
28 Forced shut down Voltage 3.35 0.05 V
Li-ion Battery
29 Battery Type Standard Voltage = 3.7 V
Battery full charge voltage = 4.2 V
Capacity: 950mAh
Switching-mode charger
30 Travel Charger Input: 100 ~ 240 V, 50/60Hz
Out put: 5.2, 0.8A

* EDGE RF Specification (Option: KE608 is not serviced for “EDGE mode”)
2. PERFORMANCE
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Item Description Specification
1RMS EVM 9%
2Peak EVM 30%
395
th Percentile EVM 15%
4Origin Offset Suppression ≥ 30dB
GSM900/EGSM
Level Power Toler. Level Power Toler.
527dBm 3dB 13 17dBm 3dB
627dBm 3dB 14 15dBm 3dB
727dBm 3dB 15 13dBm 3dB
827dBm 3dB 16 11dBm 5dB
925dBm 3dB 17 9dBm 5dB
10 23dBm 3dB 18 7dBm 5dB
11 21dBm 3dB 19 5dBm 5dB
5Power Level 12 19dBm 3dB
DCS1800, PCS1900
Level Power Toler. Level Power Toler.
026dBm 3dB 8 14 dBm 3dB
126dBm 3dB 9 12 dBm 4dB
226dBm 3dB 10 10 dBm 4dB
324 dBm 3dB 11 8 dBm 4dB
422 dBm 3dB 12 6 dBm 4dB
520 dBm 3dB 13 4 dBm 4dB
618 dBm 3dB 14 2 dBm 5dB
716 dBm 3dB 15 0 dBm 5dB
6Output RF Spectrum GSM900/EGSM
(due to modulation) 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

2. PERFORMANCE
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Item Description Specification
6Output RF Spectrum DCS1800, PCS1900
(due to modulation) 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
7Output RF Spectrum GSM900/EGSM
(due to switching transient) 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
1,800 -30

3. TECHNICAL BRIEF
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Baseband circuit
3.1 KE600 / KE608 Component Block diagram.
KE600/KE608 is composed with 3 different PCB part such as main PCB, sub PCB and FPCB.
3. TECHNICAL BRIEF
Figure 1 KE600/KE608 Hardware architecture

3. TECHNICAL BRIEF
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The functional component arrangement is mentioned below diagram.
Figure 2 KE600/KE608 Functional block diagram

3. TECHNICAL BRIEF
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3.2. Baseband Processor (BBP) Introduction
3.2.1 General Description
S-GOLD2TM is a GSM/EDGE single chip mixed signal Baseband IC containing all analog and digital
functionality of a cellular radio. Additionally S-GOLD2TM 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 0.13um, 1.5V technology.
The chip will fully support the FR, EFR, HR and AMR-NB vocoding.S-GOLD2TM 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.
Figure 3. Top level block diagram of the S-GOLD2TM (PMB8876)