LG KC560 User manual

Service Manual Model : KC560
Service Manual
KC560
Date: November, 2008 / Issue 1.0
Internal Use Only

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Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
REVISED HISTORY
Editor Date Issue Contents of Changes S/W Version
J
.G.PARK 6/02 0.1
* 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 KC560.

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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
Table Of Contents
1. INTRODUCTION...............................................9
1.1 Purpose......................................................................9
1.2 Regulatory Information.................................................9
2. PERFORMANCE............................................. 11
2.1 H/W Feature..............................................................11
2.2 Technical specification ...............................................13
3. TECHNICAL BRIEF......................................... 19
3.1 KC560 Functional Block diagram ...............................19
3.2 Baseband Processor (BBP) Introduction ......................20
3.3 Power management IC...............................................29
3.4 Power ON/OFF ..........................................................34
3.5 SIM & uSD interface ..................................................35
3.6 Memory ....................................................................37
3.7 LCD Display ..............................................................38
3.8 Keypad Switching & Scanning ....................................39
3.9 Keypad back-light illumination....................................40
3.10 LCD back-light illumination ......................................41
3.11 ALC ........................................................................42
3.12 Battery current consumption monitor ........................43
3.13 JTAG & ETM interface connector ..............................43
3.14 Audio......................................................................44
3.15 charging circuit .......................................................45
3.16 FM radio & BLUETOOTH...........................................46
3.17 18pin Multi Media Interface connector......................49
3.18 General Description .................................................50
3.19 Receiver part...........................................................52
3.20 Transmitter part.......................................................52
3.21 RF synthesizer.........................................................53
3.22 DCXO .....................................................................53
3.23 Front End Module control.........................................54
3.24 Power Amplifier Module ...........................................54
3.25 Mode Selection .......................................................55
3.26 PAM Schematic.......................................................56
4. PCB layout.................................................... 57
4.1 Main & Sub PCB component placement......................57
5. TROUBLE SHOOTING..................................... 61
5.1 Trouble shooting test setup ........................................61
5.2 Power on Trouble.......................................................62
5.3 Charging trouble........................................................65
5.4 LCD display trouble ...................................................67
5.5 Camera Trouble.........................................................69
5.6 Receiver & Speaker trouble........................................71
5.7 Microphone trouble ...................................................73
5.8 Vibrator trouble..........................................................74
5.9 Keypad back light trouble...........................................75
5.10 SIM & uSD trouble...................................................76
5.11 Photo sensor trouble................................................79
5.12 RGB LED trouble......................................................80
5.13 Trouble Shooting of Receiver Part .............................81
5.14 Trouble Shooting of Transmitter Part .........................87
6. Multi-Download ........................................... 96
7. BLOCK DIAGRAM........................................100
8. CIRCUIT DIAGRAM...................................... 101
9. BGA Pin Map ..............................................109
10. PCB LAYOUT .............................................111
11. RF Calibration .......................................... 121
11.1 Test Equipment Setup ............................................121
11.2 Calibration Step.....................................................121
12. STAND-ALONE TEST ................................. 126
12.1 Test Program Setting .............................................126
12.2 Tx Test..................................................................128
12.3 Rx Test..................................................................129
13. ENGINEERING MODE................................. 131
14. EXPLODED VIEW & REPLACEMENT
PART LIST ................................................. 133
14.1 EXPLODED VIEW ...................................................133
14.2 Replacement Parts ................................................135
14.3 Accessory .............................................................157

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

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
G
EGPRS
G G G G G G G
lGnGwGyGzG
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 Te lephone 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
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Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only

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Only for training and service purposes
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
DCXO Digitally Controlled Crystal Oscillator
WAP Wireless Application Protocol
8PSK 8 Phase Shift Keying

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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 the KC560.
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 KC560 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 KC560 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 KC560 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.

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LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
1. INTRODUCTION
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
The KC560 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.

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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
2.1 H/W Feature
Item Feature Comment
Form Factor
Slide
1) Capacity
Standard : Li-Ion, 900mAh
Battery
2) Packing Type : Soft Pack
Size Standard :
103.8 X 51.4 X 14.9 mm
Weight TBD With Battery
Volume ??cc
PCB Staggered 10Layers , 0.8t
Stand by time 250 hrs @ Paging Period 9
Charging time 3 hrs @ Power Off / 900mAh
Talk time Min : 3.0 hrs @ Power Level 7 @ EGSM / 900mAh
RX sensitivity EGSM : -105 dBm
DCS 1800 : -105 dBm
PCS 1900 : -105 dBm
GSM/
GPRS
EGSM : 32.7 dBm
DCS 1800 : 31dBm
PCS 1900 : 30 dBm
Class4 (EGSM)
Class1 (PCS)
Class1 (DCS)
TX output power
EDGE EGSM : 26 dBm
DCS 1800 : 25 dBm
PCS 1900 : 25 dBm
E2 (EGSM)
E2 (PCS)
E2 (DCS)
GPRS compatibility GPRS Class 10
EDGE compatibility EDGE Class 10
SIM card type Plug-In SIM
3V /1.8V

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LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
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2. PERFORMANCE
Display 1. Main LCD
2. 262K Color TFT (320 x 240)
Backlight : White LED
Built-in Camera 3M CMOS Camera (QXGA) One button access
Status Indicator None
Keypad Alphanumeric Key : 12
Function Key : 10
Side Key : 4
Total No of Keys :26
Function Key:
4 Key Navigation, OK, F1, F2, CLR,
SND, END
Side Key :
Jog wheel, CAM, Task
ANT Main : Internal Fixed Type
System connector 18 Pin
Ear Phone Jack 18pin, Stereo
PC synchronization Yes
Memory NAND Flash : 1Gbit
SDRAM : 512Mbit
Speech coding FR, EFR, HR,AMR
Data & Fax Built in Data & Fax support
Vibrator Built in Vibrator
Blue Tooth V2.1
MIDI(for Buzzer
Function) 64Poly, MP3 ringtone
Music Player MP3/ WMA/AAC/AAC+/AAC++ With Graphic EQ
Video Player MPEG4, H.263,
Camcorder MPEG4, H.263,
Voice Recording Yes
Speaker Phone mode
Support Yes
Travel Adapter Yes
CDROM No
Stereo Headset Yes
Data Cable No
T-Flash(External Memory) No

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Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. PERFORMANCE
2.2 Technical specification
Item Description Specification
1 Frequency Band
GSM900
1) PGSM
TX: 890 + 0.2 x n MHz
RX: 935 + 0.2 x n MHz ( n = 1 ~ 124 )
2) EGSM
TX: 890 + 0.2 x (n-1024) MHz
RX: 935 + 0.2 x (n-1024) MHz ( n = 975 ~ 1023 )
DCS1800
TX: 1710.2 + 0.2 x (n-512) MHz
RX: 1805.2 + 0.2 x (n-512) MHz (n = 512 ∼885)
PCS1900
TX: 1850 + ( n-511 ) ×0.2 MHz
RX: 1930 + ( n-511 ) ×0.2 MHz (n = 512 ∼810)
2 Phase Error RMS < 5 degrees,
Peak < 20 degrees
3 Frequency Error < 0.1ppm
GSM900
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
DCS / PCS
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
GSM900
Offset from Carrier (kHz). Max. dBc
100 +0.5
5 Output RF Spectrum
( due to modulation)
200 -30

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2. PERFORMANCE
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
DCS / PCS
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
Offset from Carrier (kHz) Max. (dBm)
400 -19
600 -21
1,200 -21
1,800 -24
DCS / PCS
Offset from Carrier (kHz) Max. (dBm)
400 -22
600 -24
1,200 -24
6Output RF Spectrum
(due to switching)
1,800 -27
7 Spurious Emissions Conduction, Emission Status
Conduction, Emission Status
8 Bit Error Ratio
GSM900
BER (Class II) < 2.439% @-102dBm
DCS / PCS
BER (Class II) < 2.439% @-102dBm
9 Rx Level Report accuracy ±3 dB
10 SLR 8±3 dB
Frequency (Hz) Max.(dB) Min.(dB)
100 -12 /
11 Sending Response
200 0 /

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Copyright © 2008 LG Electronics. Inc. All right reserved.
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LGE Internal Use Only
2. PERFORMANCE
300 0 -12
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 -6 /
200 2 /
300 2 -9
1,000 2 -7
3,400 2 -12
13 Receiving Response
4,000 2
14 STMR > 17 dB
15 Echo Loss > 44 dB
16 Idle Noise Sending < -64 dBm0p
17 Idle Noise Receiving < -54 dBm0p
18 <Change> System
frequency
(13 MHz) tolerance
≤2.5ppm
19 <Change>32.768KHz
tolerance ≤30ppm
20 Power consumption
Full power
< 340mA (GSM900) ; < 260mA (DCS / PCS)
Standby
- Normal Mode ≤4.0mA(Max. power)
- Using Test mode on DSP Sleep function ≤6mA
21 Talk Time
GSM900/Level7 (Battery 900mA):230 Min
GSM900/Level12(Battery 900mA):390 Min
PCS1800/Level5 (Battery 900mA):340 Min
PCS1800/Level10(Battery 900mA):430 Min
22 Standby Time
Under conditions, at least 250 hours:
Brand new and full 900mAh battery
Full charge, no receive/send and keep GSM
in the mode. Broadcast set off.
Signal strength display set at 3 level above.
Backlight of phone set off.
23 Ringer Volume At least 55 dB under below conditions:
1. Ringer set as ringer.
2. Test distance set as 1 m
24 Charge Voltage Fast Charge : < 500 mA

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2. PERFORMANCE
Slow Charge: < 120 mA
Antenna Bar Number Power
7->5 -93¡3dBm
5->4 -98¡3dBm
4->2 -101¡3dBm
2->1 -104¡3dBm
25 Antenna Display
1->0 -106¡3dBm
Battery Bar Number Voltage
Cut Off 3.20V ~ 3.30V (3.25V)
1->Blinking 3.50V ~ 3.60V (3.55V)
2->1 3.58V ~ 3.68V (3.63V)
3->2 3.68V ~ 3.78V (3.73V)
3 ~ 4.20V
26 Battery Indicator
Call, Blinking Voltage 3.52V ~ 3.62V (3.57V)
3.57 ¡0.05 V (Call / Warning tone once per one minutes)
27 Low Voltage Warning 3.55 ¡ 0.05 V (Standby / Warning tone once perthree minutes)
28 Forced shut down Voltage 3.25 ¡0.05 V
29 Battery Type
Li-Ion Battery, Soft pack,
Standard Voltage = 3.7 V
Battery full charge voltage = 4.2 V,
Capacity: 900mAh
30 Travel Charger Switching-mode charger
Input: 100 ∼240 V, 50/60Hz
Out put: 5.1V, 700mA

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Copyright © 2008 LG Electronics. Inc. All right reserved.
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LGE Internal Use Only
2. PERFORMANCE
p(p )
Item Description Specification
1 RMS EVM 9%
2 Peak EVM 30%
3 95th Percentile EVM 15%
4 Origin Offset Suppression 30dB
GSM900/EGSM
Level Power Toler. Level Power Toler.
5 26dBm –3dB 13 17dBm –3dB
6 26dBm –3dB 14 15dBm –3dB
7 26dBm –3dB 15 13dBm –3dB
8 25dBm –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 25/25dBm –3dB 8 14dBm –3dB
1 25/25dBm –3dB 9 12dBm –4dB
2 25/25dBm –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
GSM900/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
6,000 -71
DCS1800, PCS1900
Offset from carrier(kHz) Max. dBc
100 +0.5
200 -30
250 -33
6 Output RF Spectrum
(due to modulation)
400 -54
EDGE RF Specification (Option: is not serviced for ”EDGE mode”)

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LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
2. PERFORMANCE
600~<1,200 -60
1,200~<1,800 -60
1,800~<3,000 -63
3,000~<6,000 -65
6,000 -71
GSM900/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
7Output RF Spectrum
(due to switching transient)
1,800 -30

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Copyright © 2008 LG Electronics. Inc. All right reserved.
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LGE Internal Use Only
3. TECHNICAL BRIEF
3. TECHNICAL BRIEF
III-1 Baseband circuit
3.1. KC560 Functional Block diagram.
The functional component arrangement is mentioned below diagram.
Figure 2 KC560 Functional block diagram

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LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
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3. TECHNICAL BRIEF
3.2. Baseband Processor (BBP) Introduction
Figure 3 Top level block diagram of the S-GOLD3TM (PMB8877)
3.2.1. 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 andAMR-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.
3.2.2. Block Description
Processing 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
ARM-Memory
- 32k Byte Boot ROM on the AHB
- 96k Byte SRAM on theAHB, flexibly usable as program or data RAM
- 16k Byte Cache for Program (internal)

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Copyright © 2008 LG Electronics. Inc. All right reserved.
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3. TECHNICAL BRIEF
- 8k Byte tightly coupled memory for Program(internal)
- 8k Byte Cache for Data(internal)
- 8k Byte tightly coupled memory for Data(internal)
DSP-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
Shared Memory Block
1.5K x 32bit Shared RAM(dual ported) between controller system and TEAKLite.
Controller 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.
Clock 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.
Functional 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 auto baud detection, hardware flow control and integrated
- A dedicated Fast IrDA 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)