3.9 External memory interface .....41 3.10 Hardware sub system ......42 8. pcb layout ........176 3.11 DVB-H System........66 3.12 Main features of KU950 .......73 9. Calibration Program ....185 9.1 Configuration of HOT KIMCHI .....185 4. TROUBLE SHOOTING ....79 9.2 How to use HOT KIMCHI.....189 4.1 RF Component........79...
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.
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1. INTRODUCTION 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.
2. PERFORMANCE 2. PERFORMANCE 2.1 System Overview Item Specification Shape GSM900/1800/1900 and WCDMA Folder Handset Size 100.6 x 50.6 x 21.4 mm Weight 110 g (with 950mAh Battery) Power 3.7V normal, 950 mAh Li-Polymer Talk Time Over 150 min (WCDMA, Tx=12 dBm, Voice) (with 1000mAh) Over 175 min (GSM, Tx=Max, Voice) Standby Time...
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2. PERFORMANCE Item DCS & PCS Frequency offset 800kHz Intermodulation product should Intermodulation attenuation – be Less than 55dB below the level of Wanted signal Power control Power Tolerance Power control Power Tolerance Level (dBm) (dB) Level (dBm) (dB) ±3 ±3 ±3 ±3...
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2. PERFORMANCE 2) Transmitter - WCDMA Mode Item Specification Maximum Output Power Class 3 : +24dBm(+1/-3dB) Class 4 : +21dBm(±2dB) Frequency Error ±0.1ppm Open Loop Power control in uplink ±9dB@normal, ±12dB@extreme Adjust output(TPC command) +0.5/1.5 +1/3 +1.5/4.5 Inner Loop Power control in uplink -0.5/+0.5 -0.5/+0.5 -0.5/+0.5 -0.5/-1.5 -1/-3...
2. PERFORMANCE 2.4 Current Consumption Stand by Voice Call Under 3.518 mA Under 335 mA Under 569mA WCDMA (DRX=2.56) (Tx=10dBm) (Tx=10dBm) Under 3.518 mA Under 292 mA Paging=5 period (PCL=7) (Stand by Test Condition : Bluetooth off, LCD backlight off) (Call Test Condition : Bluetooth off, LCD backlight dimming mode) (VT Test Condition : Speaker off, LCD backlight On) 2.5 RSSI BAR...
2. PERFORMANCE 2.7 Sound Pressure Level Test Item Specification Sending Loudness Rating (SLR) 8 ±3 dB -4 ± 3 dB Receiving Loudness Rating (RLR) -15 ± 3 dB Side Tone Masking Rating (STMR) 17 dB Echo Loss (EL) 40 dB Sending Distortion (SD) Refer to Table 30.3 Receiving Distortion (RD)
2. PERFORMANCE 2.8 Charging - Charging Method : CC & CV (Constant Current & Constant Voltage) - Maximum Charging Voltage : 4.2V - Maximum Charging Current : 650mA - Nominal Battery Capacity : 950 mAh - Charger Voltage : 4.8V - Charging time : Max 3 h (Except time trickle charging) - Full charge indication current (icon stop current) : 60mA - Low battery POP UP : 3.48V...
3. TECHNICAL BRIEF 3. RF TECHNICAL BRIEF 3.1 General Description The KU950 supports UMTS-2100 DS-WCDMA, EGSM-900, DCS-1800, and PCS-1900. All receivers and the UMTS transmitter use the radio One Zero-IF architecture to eliminate intermediate frequencies, directly converting signals between RF and baseband. The EGSM, DCS1800 and PCS1900 transmitters use a baseband-to-IF up-conversion followed by an offset phase-locked loop that translates the GMSKmodulated signal to RF.
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3. TECHNICAL BRIEF A generic, high-level functional block diagram of KU950 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 switch module (plus a duplexer for UMTS-2100 operation).
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3. TECHNICAL BRIEF KU950 power supply voltages are managed and regulated by the PM6250 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.
3.2 GSM Mode 3.2.1 GSM Receiver The Dual-mode KU950’s receiver functions are split between the two RFICs as follows: • UMTS-2100 operation uses the RFR6250 Receiver ICs to implement the receive signal path, accepting an RF input and delivering analog baseband outputs (I and Q).
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3. TECHNICAL BRIEF The amplifier outputs drive the RF ports of the quadrature RF-to-baseband downconverters. The downconverted baseband outputs are multiplexed and routed to lowpass filters (one I and one Q) having passband and stopband characteristics suitable for GMSK processing. These filter circuits include DC offset corrections.
3. TECHNICAL BRIEF 3.2.2. GSM Transmitter The shared GSM Low-band (EGSM900) and High-band (DCS1800, PCS1900) transmit path begins with the baseband inputs from the MSM6275 IC. These differential analog input signals are buffered, lowpass filtered, corrected for DC offsets then applied to the GSM quadrature upconverter. The upconverter LO signals are generated from the transceiver VCO signal by the LO distribution and generation circuits within RTR6250.
3. TECHNICAL BRIEF The waveform at the dual Tx VCO output is the GMSK-modulated signal centered at the desired GSM channel frequency. A phase-locked loop circuit is used to translate the GMSK-modulated signal from IF to RF primarily for two reasons: 1.
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3. TECHNICAL BRIEF The amplifier output drives the RF port of the quadrature RF-to-baseband downconverter. The down- converted baseband outputs are routed to low-pass filters (one I and one Q) having pass-band and stop-band characteristics suitable for DS-WCDMA processing. The filter outputs are buffered and passed on to the MSM6275 IC for further processing.
The RTR6250 UMTS output is routed to its power amplifier through a bandpass filter, and delivers fairly high-level signals that are filtered and applied to the PA. The PA device used in KU950 is “Load Insensitive PA”- no need to use isolator - and routed to the duplexer Tx port directly. Transmit power is delivered from the duplexer to the antenna through the switch module.
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AC-couple the inactive pin to ground using an appropriately valued capacitor (12 pF is used in KU950). The 27 pF capacitor should be used to AC-couple the active pin to the VCO signal. Using only the selected VCO signal, the RFR6250 IC LO generation and distribution circuits create the necessary LO signals for the active quadrature downconverter.
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3. TECHNICAL BRIEF The closed loop will force FV to equal FR when locked. If the loop is not locked the error between FV and FR will create an error signal at the output of the charge pump. This error signal is filtered by the loop filter and applied to the VCO, tuning the output frequency such that the error is decreased.
A UMTS duplexer splits a single operating band into receive and transmit paths. Important performance requirements include: -. Insertion loss . this component is also in the receive and transmit paths; In the KU950 typical losses: UMTS Tx = 1.45 dB, UMTS Rx = 1.86 dB.
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3. TECHNICAL BRIEF -. Tx-band isolation . the transmit channel power also leaks into the receiver. In this case, the leakage is outside the receiver passband but at a relatively high level. It combines with Rx band jammers to create cross-modulation products that fall in-band to desensitize the receiver. The required Tx-band isolation depends on the PA channel power and Tx-band losses between the PA and LNA.
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Its detector coupling range and converted voltage is based on diode sensitivity and transmitter power level. The KU950 uses National Semiconductor ADL5500 power detector IC. In Figure 3.5.5-1, R129 is set to 68ohm&Coupler resulting in an attenuation of 31.4dB. The output voltage is proportional to the logarithm of the input power.
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3. TECHNICAL BRIEF 3.5.6 Dual band GSM power amplifier (U101) The SKY77328 is a high-power, high-efficiency power amplifier module with integrated power control that provides over 50dBof control range. The devices is a self-contained 6mm x 6mm module with 50Ω input and output terminals.
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3. TECHNICAL BRIEF 3.5.7 GSM transmit VCO (U102) The dual Tx VCO is a key component within the GSM OPLL. This VCO performance directly impacts PLL and transmitter performance. VCO specifications refer to muRata MQW5V0C869M datasheet. The dual Tx VCO outputs, one for Low-band GSM and one for high band, drive a resistive network that splits the active signal into two signals: 1) the input to the active PA .
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3. TECHNICAL BRIEF Of course, passband ripple and return loss are still important in all cases for the same reasons explained in the antenna switch module and duplexer sections. 3.5.9 VCTCXO (X100) The Voltage Controlled Temperature Compensated Crystal Oscillator (VCTCXO) provides the reference frequency for all RFIC synthesizers as well as clock generation functions within the MSM6275 IC.
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3.5.10 Bluetooth (M100 : LBDA254FJ0, ANT100 ) The MSM6275 includes BT baseband embedded BT 1.1 compliant baseband core, so the other bluetooth components are an bluetooth RF module and Antenna. Figure3.5.10-1 shows the bluetooth system architecture in the KU950. Figure3.5.10-1 Bluetooth system architecture - 34 -...
3. TECHNICAL BRIEF 3. BB Technical Description 3.6 Digital Baseband (DBB / MSM6275) 3.6.1 General features of MSM6275 device A. Features(MSM6275) • Support for multimode operation - WCDMA(UMTS), GSM/GPRS, EDGE • Support for high-speed downlink packet access (HSDPA) - 1.8 Mbps •...
3. TECHNICAL BRIEF 3.8. Subsystem of MSM6275 3.8.1. ARM Microprocessor Subsystem The MSM6275 device uses an embedded ARM926EJ-S microprocessor. This microprocessor, through the system software, controls most of the functionality for the MSM device, including control of the external peripherals such as the keypad, LCD, RAM, ROM, and EEPROM devices. Through a generic serial bus interface (SBI) the ARM926EJ-S configures and controls the functionality of the RFL6202, RFR6202, RTR6250, RTR6200, and PM6650 devices.
3. TECHNICAL BRIEF 3.8.5. Serial Bus Interface (SBI) The MSM6275 device’s SBI is designed specifically to be a quick, low pin count control Protocol for QUALCOMM’s RFL6202, RFR6202, RTR6250, RTR6200, and PM6650 ASICs. Using the SBI, the RTR6250, RFR6200, RFL6200, and PM6650 devices can be configured for different operating modes and for minimum power consumption, extending battery life in standby mode.
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3. TECHNICAL BRIEF 3.8.10. UART There are three UARTs in the MSM6275 ASIC: • UART1 for data • UART2 (can be used for USIM interface) • UART3 (can be used for PM SBI interface) 3.8.11. USB The MSM6275 device integrates a universal serial bus(USB) controller that supports both unidirectional and bidirectional transceiver interfaces.
3. TECHNICAL BRIEF 3.10. Hardware sub system 3.10.1. RF Interface 3.10.1.1. RTR6250 (WCDMA_Tx, GSM_Tx/Rx) MSM6275 controls RF part(RTR6250) using these signals. • SBST,SBDT,SBCK : SBI I/F signals for control Sub-chipset • PA_ON : Power AMP on RF part • RX_I/Q,TX_I/Q : I/Q for Tx/Rx of RF •...
3. TECHNICAL BRIEF 3.10.2. MSM sub system 3.10.2.1. SIM interface SIM interface scheme is shown in Figure. And, there control signals are followed • USIM_CLK : USIM Clock • USIM_Reset : USIM Reset • USIM_Data : USIM Data T/Rx USIM CLK VREG_USIM 2.85V USIM CLK USIM Reset...
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Revision 2.0. The USB Specification Revision 1.1 defines two speeds of operation, namely low-speed (1.5 Mbps) and full-speed (12 Mbps), both of which are supported by the MSM6275. KU950’s USB interface uses the PM6650 internal logic for USB Transceiver. Name...
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3. TECHNICAL BRIEF 3.10.2.4. HKADC (House Keeping ADC) The MSM6275 device has an on-chip 8-bit analog-to-digital converter (HKADC) which is tended to digitize DC signals corresponding to analog parameters such as battery voltage, temperature, and RF power levels. The MSM6275 device has six analog input pins which are multiplexed to the input of the internal HKADC. Figure.
3. TECHNICAL BRIEF 3.10.3. Power Block 3.10.3.1. General MSM6275A, included RF, is fully covered by PM6650-1M(Qualcomm PMIC). PM6650-1M cover the power of MSM6275A, MSM memory, RF block, Bluetooth, Micro SD, USIM and TCXO. Major power components are : PM6650-1M (U600) : Phone power supply QST4 (Q600,Q601) : External charger supply switching SI3493DV-E3 (Q602) : Main Battery charging control MAX8631XETI (U802) : Camera power supply...
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These pins are connected to the Source (or emitter) and Drain (or collector) contacts of the pass transistor respectively. 3.48V~3.22V 3.71V~3.67V 3.66V~3.49V 4.2V~3.82V 3.81V~3.72V 3~0 (%) 33~16 (%) 16~3 (%) 100~61 (%) 61~33 (%) Figure. KU950 Battery Bar Display (Standby condition) - 49 -...
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3. TECHNICAL BRIEF 3.10.3.3.1 Trickle charging Trickle Charging of the main battery, enabled through SBI control and powered from V , is provided by the PM6650-1M IC, The trickle charger is on-chip programmable current source that supplies current from V to pin (VBAT).
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3. TECHNICAL BRIEF 3.10.3.3.2 Constant current charging The PM6650-1M IC supports constant current charging of the main battery by controlling the charger pass transistor and the battery transistor. The constant current charging continues until the battery reaches its target voltage, 4.2V. 3.10.3.3.3 Constant voltage charging Constant voltage charging begins when the battery voltage reaches a target voltage, 4.2V.
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3. TECHNICAL BRIEF 3.10.4. Keypad KU950 has 20 buttons, 5 tact switches and 3 side keys. Figure shows the Keypad circuit. ‘END’ Key is connected to PM_ON_SW_N to PM6650 and GPIO76 of MSM6275. COL0 COL1 COL2 COL3 COL4 COL5 HOT900...
3. TECHNICAL BRIEF 3.10.5 Camera interface KU950 has two cameras : 1.3M Pixel CMOS and VGA Pixel CMOS Camera Below figures shows the camera board to board connector and camera I/F signal. 3.10.5.1 1.3 Mega Camera Interface VCAM_1.8V VCAM_2.8V C804 4.7u...
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3. TECHNICAL BRIEF The 1.3MCamera module is connected to main board with 26pin Board to Board connector (AXK826145). Actually, there is a linking FPCB to connect camera module to the main board. Its interface is dedicated camera interface port in MSM6275. The camera port supply 24MHz master clock to camera module and receive 12MHz pixel clock (30fps), vertical sync signal, horizontal sync signal, reset signal and 8bits data from camera module.
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3. TECHNICAL BRIEF 3.10.5.2 VGA Camera Interface VCAM_2.8V CN800 FB800 R800 VC_IO_OFF R801 FILTER_CAM_SYSCLK V_CAM_RESET_N FILTER_CAM_PCLK VGA_I2C_SCL C801 C802 CAM_DATA[0] VGA_I2C_SDA CAM_DATA[1] CAM_DATA[2] FILTER_CAM_HSYNC CAM_DATA[3] CAM_VSYNC CAM_DATA[4] CAM_DATA[7] CAM_DATA[5] CAM_DATA[6] VGA CAMERA CONNECTOR The VGA Camera module is connected to main board with 20pin Board to Board connector (AXK720145).
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3. TECHNICAL BRIEF 3.10.5.3 LCD backlight / Flash LED / Camera LDO U802(MAX8631XETI) is a charge pump and supply a power of mega camera, VGA camera and camera flash LED. U802 is controlled by GPIOs of MSM6275. +VPWR U802 MAX8631XETI C809 C810 R811...
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3. TECHNICAL BRIEF 3.10.6 Folder on/off operation There is a magnet to detect the folder status, opened or closed. If a magnet is close to the hall-effect switch, the voltage at pin1 of U901 goes to 0V. Otherwise, 2.7V. This folder signal is delivered to MSM6275 GPIO43. VREG_MSMP_2.7V R923 A3212EELLT-T...
3. TECHNICAL BRIEF 3.10.7. Keypad backlight There are 10 White LEDs on Top side of Main PCB and 6 White LEDs on Top side of key PCB in board backlight circuit and, which are driven by KEYBD_BACKLIGHT line form PM6650. Key Pad backlight controlled by PM6650.
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3. TECHNICAL BRIEF 3.10.9. Display & LCD FPC Interface LCD module is connected to Main board with 40-pin Wire connector. The LCD is controlled by 16-bit EBI2 in MSM6275.The 16-bit EBI2 Data from LCD go into the SH-mobile chip(U300) and the SH-mobile chip transfer the data to MSM6275. EBI2_DATA[1:8] EBI2_DATA[1:8] TCC7820...
3. TECHNICAL BRIEF 3.10.10. Audio and sound 3.10.10.1 Overview of Audio & Sound path Head Set Jack Head_Set LCD Conn Receiver MSM6275A (U300-1) SPEAKE Speaker Head Set Headset MIC Jack Figure. Block diagram ofaAudio &sSound path - 61 -...
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3. TECHNICAL BRIEF 3.10.10.2. Audio signal processing & interface The MSM6275 device integrates a wideband audio CODEC into the mobile station modem. The wideband codec allows the MSM device to support stereo music/ringer Melody applications in addition to the 8 kHz voice band applications on the forward link.
3. TECHNICAL BRIEF 3.11 DVB-H System 3.11.1. DVB-H Block Diagram DVB-H system block diagram is shown in the figure below. You can see the flow of DVB-H signal by the below figure. First of all, you can see the antenna &...
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3. TECHNICAL BRIEF DVB-H ANT GSM Rejection Filter MSM6275 DVB-H Tuner DVB-H Demodulator SRAM DVB-H Signal Path Figure. DVB-H Signal Path & Components - 67 -...
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3. TECHNICAL BRIEF 3.11.2. GSM Rejection Filter (FL200) GSM rejection filter is placed between antenna and tuner. The filter is a type of BPF(Band Pass Filter) and has pass-band from 470MHz to 702MHz. This filter is used protect DVB-H signal from GSM interference which is near by DVB-H band.
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3. TECHNICAL BRIEF 3.11.4. DVB-H Demodulator (U201) The DIB7000-H 2k/4k/8k COFDM demodulator Integrated Circuit (IC) uses the state of the art Signal Processing to offer high performance for mobile, portable and fixed reception of Digital Terrestrial Television signals compliant with DVB-H standard. Dual AGC BB/RF is implemented in order to offer very high dynamic range control through digital.
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3. TECHNICAL BRIEF 3.11.5. DVB-H interface DVB-H interface block diagram is shown in below Figure. In the DVB-H system, DSP & MSM both are related to control the demodulator, and demodulator control the operation of tuner. Each interface is shown in below figure. Each control signals are explained in table Name Note...
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3. TECHNICAL BRIEF 3.11.5.1. Radio performance of DVB-H receiver Item Specification Receive Frequency 470 ~ 702 MHz Reference BER < 2*10 when Î = -86.4 dBm / 7.61 MHz Sensitivity Level modulation = 16QAM code rate = , guard interval = Maximum BER <...
3. TECHNICAL BRIEF 3.12 Main features of KU950 - Bar Swing Type - WCDMA(2100) + GSM(900,1800) + PCS(1900) Triple mode - Main LCD: 320*240, 262K (2.4”) - 1.3M Pixel CMOS Camera - VGA CMOS Camera - φ17 speaker - Stereo Headset - Video telephony in WCDMA with camera - HSDPA up to 1.8Mbps...
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3. TECHNICAL BRIEF 2. Main Components of KU950 MAIN Top Side MAIN Bottom Side KEY Top Side KEY Bottom Side VGA camera Intenna & Speaker 1.3M camera LCD & LCD BíD - 74 -...
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3. TECHNICAL BRIEF 2.1. Main Top Side U103 FL103 U101 FL100 U100 U102 LD900 Side Key U901 U702 CN901 U203 CN601 U703 U701 U602 Reference Description Reference Description U103 PAM (WCDMA) U701 AUDIO CODEC FL103 DUPLEXER U101 (QUAD BAND GSM AND GPRS) VCO (824MHz ~ 915MHz, FL100 SEPERATOR...
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3. TECHNICAL BRIEF 2.3. KEY Top Side Metal DOME SW100 2.4. KEY Bottom Side CN100 BAT100 S100 M100 D100 MIC100 ANT100 Reference Description Reference Description BAT100 Backup Battery SW100 Joy Stick M100 Bluetooth RF Module CN100 Main To KEY B To B Connector MIC100 Microphone ( SMD ) S100...
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3. TECHNICAL BRIEF 2.5. SUB_LCD Bottom Side Receiver PAD Vibrator PAD CN101 CN100 Reference Description Reference Description Main To LCD_SUB B To B Vibrator Vibrator PAD CN101 Connector LCD_SUB To LCD B To B Receiver Receiver PAD CN100 Connector - 78 -...
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4. TROUBLE SHOOTING Logic Table of the Antenna Switch Mode ANT_SEL0 ANT_SEL1 ANT_SEL2 EGSM TX HIGH HIGH EGSM RX HIGH DCS/PCS TX HIGH DCS RX HIGH HIGH PCS RX HIGH UMTS HIGH HIGH Checking Switch Block power source Check Soldering of ANT_SEL0, 1, 2 High Level Check VCC 2.5V <...
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4. TROUBLE SHOOTING For testing, Max power output is needed. Set the Phone Tx is ON and PDM is 450 Check TP1 RF Tx Level is OK Over 21dBm ? Check TP2 Check FEM Over 19dBm ? Check TP3 Check Duplexer Over 16dBm ? Check TP4 Check PAM Block...
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4. TROUBLE SHOOTING 4.5.4. Checking PAM Block PAM control signal PA_ON : WCDMA Tx Power Detect IC(HDET) Enable PA_RO: WCDMA Tx Power Amp Gain Control PA_ON must be HIGH(over 2.5V) PA_FET_N must be LOW if the max Tx power is set (lower than 0.5V) - 92 -...
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4. TROUBLE SHOOTING PAM IN/OUT Signal PAM OUT must be over 16dBm PAM IN must be over -5dBm - 93 -...
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4. TROUBLE SHOOTING 4.5.5. Check RF Rx Level Test Point (RF Rx Level) - 94 -...
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4. TROUBLE SHOOTING Set the Phone Rx is ON Check BIAS Check bias block Over 2V ? soldering Check TP1 Check RF s/w Signal exist? Check TP2 Check FEM Signal exist? Check TP3 Check Duplexer Signal exist? Check TP4 Check RFR6250 Signal exist? Change the board - 96 -...
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4. TROUBLE SHOOTING START Check TP1 GSM/DCS/PCS If GSM over 31dBm ? Tx is Ok If DCS/PCS over 28dBm ? Check other part Check TP2, TP3 Check ANT. SW If TP2 over 29dBm ? Module If TP3 over 25dBm ? Refer to chapter 3.4 Check PAM Block Check TXVCO...
4. TROUBLE SHOOTING 4.6.4 Checking PAM Block PAM Control Signal TP1. GSM_PA_RAMP : Power Amp Gain Control. typically, 0.5V < Vapc < 2.6V, TP2. GSM_PA_EN : Power Amp Enable (Power ON : higher than 2.5V , Power OFF : lower than 0.7V) TP3.
: Enter Test Mode(7973845#*#) → Module Test Set → BT DUT → BT DUT ON 2. Connect phone to bluetooth tester 3. Set channel to 39 4. Measure output-power 5. Check TP1 : output-power > -6 dBm < KU950 Sub Key < KU950 Main Board Bluetooth Module > Bluetooth Buffer > - 105 -...
4. TROUBLE SHOOTING 4. BB Trouble Shooting 4.8 Power on trouble Power on sequence of KU950 is : PWR(END) key press → PM_ON_SW_N go to low(VA100),PM6650-1M KPDPWR_N pin(24) → PM6650-1M Power Up → VREG_MSMC_1.25V(C627), VREG_MSME_1.8V(C628), VREG_MSMP_2.7V(C620), VREG_MSMA_2.6V(C619), VREG_TCXO_2.85V(C178) power up and system reset assert to MSM →...
4. TROUBLE SHOOTING 4.9 USB trouble USB Initial sequence of KU950 is : USB connected to KU950 → USB_VBUS(D501 Pin_4) go to 5V → USB_D+(D501 Pin_1) go to 3.3V → 48M Crystal on → USB_DATA is triggered → USB work. Start...
4. TROUBLE SHOOTING 4.10 SIM detect trouble USB Initial sequence of KU950 is : VREG_USIM_2.85V(C625 of PM6650) go to 2.85V → USIM clock, reset and data triggered → USIM IF work (Schematic and place are refer to SIM technical brief)
4. TROUBLE SHOOTING 4.11 Key sense trouble Key Sense sequence of KU950 is : Default condition ROW(0-2) is 2.7V → Press the key → Corresponding ROW(x) and COL(x) go to 0V → Key sensing START Check the R900,R901 R902 with no key press...
4. TROUBLE SHOOTING 4.12 Camera trouble Camera control signals are generated by MSM6275 and directly connected with MSM6275. KU950 has two cameras. The one is a 1.3 Mega Camera, the other is VGA camera. START Check the camera conn. and...
4. TROUBLE SHOOTING 4.13 Main LCD trouble Main LCD control signals are generated by MSM6275. Those signal’s path are : MSM6275 → U403(TCC7820 MMC) → CN801 → Wire Ass’y → LCD PCB connector → LCD PCB & Module START Press END key to turn the power on Follow the Power ON Is the circuit powered?
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4. TROUBLE SHOOTING LCD Control data flow 40 pin Wire A'ssy LCD Module LCD Module 40 pin Wire A'ssy connector LCD control data flow LCD connection Main - 115 -...
4. TROUBLE SHOOTING 4.14 Keypad backlight trouble Key Pad Back Light is on as below : Key pressing → KYPD_LED_EN go to Low → LED On Key Pad LED controlled by PM6650. Start Key press Check LD900~910 (Main) Signal VPWR is OK? and R100~103 (Key) Signal KYPD_LED_EN is OK?
4. TROUBLE SHOOTING 4.15 Folder on/off trouble Folder On/Off(Close/Open) is worked as below : Folder On/Off Event → Flip(U901 pin 1,key board) is triggered(Open : about 2.6V, Close : 0V) → MSM6275 Sense the Folder Flip Event. Sensing signal is directly connected to MSM6275. Start Check the magnet in Insert the magnet...
4. TROUBLE SHOOTING 4.16 Micro SD trouble Micro SD is worked as below : Micro SD insertion → VREG_MMC_3.0V is 3.0V → MMC_CD go to High → Micro SD insertion detecting by GPIO101 of MSM6275 → go working Start Check the connector (MAIN TO KEY) Insert the Trans Flash Card Check the R101~R104 for VREG_MMC_3.0V,...
4. TROUBLE SHOOTING 4.17 Audio trouble 4.17.1. Receiver path Voice Receiver path as below: MSM6275A Ear1ON/Ear1OP → CN801(b’d to b’d connector for LCD Module) → CN101(LCD b’d to b’d connector of LCD FPCB) → R100, R101 → Receiver Start Connect the phone to network Equipment and setup call Setup 1KHz tone out Hear the tone to the receiver...
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4. TROUBLE SHOOTING 4.17.2. Voice and sound path for headset Voice and Multimedia Sound path for Head_Set as below: MSM6275A HPH_R, HPH_L → C709,C710 near the U701 (audio codec) → C719, C732 near the U703 ( Headphone AMP ) → FB702, FB704 → R709,R712 → #4, #5 pin of CN601 headset Jack Start Connect the phone to network Equipment and setup call...
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4. TROUBLE SHOOTING 4.17.4. Microphone for main MIC Main Microphone path as below: MIC → C104,C105 → MSM6275A → MIC feed back gain logic → MSM internal CODEC MICBIAS C102 C103 SP0204LE5-PB MIC1N C104 C106 C105 MIC1P MIC100 R116 R117 C107 C108 R118...
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4. TROUBLE SHOOTING 4.17.5. Microphone for headset MIC for Head_Set path as below: Insert Headset → EAR_SENSE_N(pin8) go 0V → MSM6275A sense Head_Set insertion → MIC signal go to MSM(C304). MMI 18Pin CONNECTOR VREG_MSMP_2.7V CN601 EAR_MIC_P MIDI_EAR_L MIDI_EAR_R RMT_INT/USB_D+ RMT_ADC/USB_D- EAR_SENSE_N VBATT FL600...
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4. TROUBLE SHOOTING #8 pin of ear connector to check EAR_SENSE_N C633 Capacitor to check MIC bias (1.8V) C304 for MIC serial capacitor - 128 -...
4. TROUBLE SHOOTING 4.18 Charging trouble USB_VBUS Charging Current Flow USB Cable (5.0V) Q600 QST4 Pass control Tr (ON) Q600 USB Charging control USB_CNT_N +5V_PWR (4.6V) Q601 QST4 Pass control Tr (ON) Q601 TA Charging control CHG_CNT_N ICHARGE Charging current sensing +VPWR ICHARGEOUT...
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4. TROUBLE SHOOTING Start Check the pin and battery Connect terminals of I/O connector Connection OK? Change I/O connector Is the TA voltage 4.6V? Change TA/USB cable Is the USB voltage 5.0V? Check the Q600,Q601,Q602 Charging OK? Change the board - 130 -...
4. TROUBLE SHOOTING 4.19 DVB-H broadcasting signal reception trouble Go into the Broadcasting Mode Check DVB-H Antenna Check the Antenna or replace Antenna contact point 1.6V<TP1 <2.0V 2.5V<TP2 <2.9V Check the LDO & replace 1.0V<TP3 <1.4V not working LDO 2.5V<TP4 <2.9V @TP5 Replace X200 30MHz?
4. TROUBLE SHOOTING 4.20 Vibrator trouble Vibrator control signal (MOTOR_PWR-) is generated by PM6650. That signal’s path is : Pin 25 of PM6650 → CN801 PIN 36 of Main PCB → CN101 PIN 36 of LCD Sub PCB → TP103 of LCD Sub PCB Start The vibrator Donít working?
LGMDP is designed to be simple to use and easy enough for the beginner to upload executable images to the handset. LGMDP supports Windows 2000/XP where the LG (Ver 4.6 or later) USB modem driver is installed. 5.2 Downloading Procedure 5.2.1 Setup Preferences...
5. DOWNLOAD 5.2.2 Connecting to PC Click on the Select Port and then Select Port window will be pop up. Check if state shows Enable for the port to be connected for downloading images. Then click on the Connect button. (The port number(COM14) shall be different from that of the port number in the snapshot.) - 137 -...
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5. DOWNLOAD The status Ready is displayed when the application is ready for downloading. While the images are transmitted from PC to the handset, a progressive bar indicating the degree of transmission of data is displayed. The following slide describes how to use or set options in detail. - 138 -...
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5. DOWNLOAD 1) Image Folder indicates root path where all image files are placed. To change location of the default image path, select Browse... button. The edit box shows the file path where new images are located. Please note that all images should be located in a selected folder. ( This program support the automatically loading image for some models based on MSM6275) 2) Click on the Browse...
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5. DOWNLOAD 5.2.3 Choosing image files Select the image folder, where all the image files are located, by clicking on the Browse... button. (The folder name shall be different from that of the folder name in the snapshot. The folder name indicates the path where the image files are located.) ★...
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5. DOWNLOAD ★ If you select the image folder, the program will automatically load images accordingly. Automatically load images ★ If you want to download the Flexible logo image, click the “Browse...” button and select image file - 141 -...
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5. DOWNLOAD ★ If NV restore is failed, then the NV data(*.nv2) is erased permantly. In this case, choose the desired NV file to be downloaded on the handset. If you want to download the NV data, click the “Browse...” button and select data file Caution) Error message will show if you choose improper folder like this.
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5. DOWNLOAD 5.2.4 Downloading • This message box informs that a new file for NV backup will be created in the displayed file name in the LGMDP installation directory. • Backing up NV data and backed up NV data will be stored in the LGMDP installation directory.
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5. DOWNLOAD • Writing the AMSS modem image from SDRAM to Flash memory. • Downloading Flexible logo. • Rebooting the handset and re-establishing the connection. • Restoring NV data which backed up in the Backing up process. User can also restore NV data using NV Default image selection.
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5. DOWNLOAD • Rebooting the handset and re-establishing the connection. • Erasing the existing directories and files before downloading the selected Media image. • Downloading Media image in progress. • Downloading Module image in progress. - 145 -...
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5. DOWNLOAD • Rebooting the handset and re-establishing the connection. • Downloading process has completed successfully. - 146 -...
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5. DOWNLOAD 5.2.4 Tools Device Manager allows to monitor current hardware that is installed on your PC. Device Manager is designed to monitor USB connectivity and check where the COM has been installed . Select Device Manager from the Tools of the file menu. - 147 -...
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5. DOWNLOAD Log Extractor is designed to extract log information from handset and store log related files in the selected root path in PC. This function is very useful for debugging. Select Log Extractor from the Tools of the file menu, and connect the phone with LGMDP by clicking on the Connect button. When clicking on the Connect button, this checks if the appropriate files such as LGAPP/RecMngr.bin, err directory, Debugging_Tip.txt, or Hidden_info.bin are placed on the handset.
5. DOWNLOAD 5.3 Troubleshooting download errors 1) When the phone does not work ➜ Reboot the phone as the emergency mode (keep pressing “2” and “5” key while the phone is being booted). and then try to download the images again. ★...
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5. DOWNLOAD ➜ Select the image folder, where all the image files are located, by clicking on the Browse... button. And start downloading the selected images. - 150 -...
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5. DOWNLOAD 2) NV Restore Error ➜ Connect to the phone. - 151 -...
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5. DOWNLOAD ➜ Click on ‘Cancel’. ➜ Click on ‘NV Restore’ then several NV Backup files(*.nv2) are shown. ★ The files are saved every NV Backup. The name is based on the time when NV Backup is done.) - 152 -...
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5. DOWNLOAD ➜ Select the proper file and click on ‘Restore’. ➜ If you want image download and NV backup file restore at once, use the NV Default function. - 153 -...
5. DOWNLOAD 5.4 Caution 1) Multi-downloading using the USB hub is not recommendable. 2) If you see the message ‘cal mode’ after ‘completing download’, you must do NV restore and image (media and module) download. 3) In emergency mode, you can not download the media and module image. So if you want download media and module image, connect the phone normal mode after emergency mode download, and then you can do it.
R&D CHK: Size: Size: TITLE: TITLE: C196 TCXO_OUT DOC CTRL CHK: DOC CTRL CHK: 1000p KU950 Main 1.1 MFG ENGR CHK: MFG ENGR CHK: Changed by: Changed by: Date Changed: Date Changed: Time Changed: Time Changed: QA CHK: QA CHK:...
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DEVELOPMENT GROUP 1 R&D CHK: R&D CHK: Size: Size: TITLE: TITLE: DOC CTRL CHK: DOC CTRL CHK: KU950 Main 1.1 MFG ENGR CHK: MFG ENGR CHK: Changed by: Changed by: Date Changed: Date Changed: Time Changed: Time Changed: QA CHK:...
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DEVELOPMENT GROUP 1 R&D CHK: R&D CHK: Size: Size: TITLE: TITLE: DOC CTRL CHK: DOC CTRL CHK: KU950 Main 1.1 MFG ENGR CHK: MFG ENGR CHK: Changed by: Changed by: Date Changed: Date Changed: Time Changed: Time Changed: QA CHK:...
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DEVELOPMENT GROUP 1 R&D CHK: R&D CHK: Size: Size: TITLE: TITLE: DOC CTRL CHK: DOC CTRL CHK: KU950 Main 1.1 MFG ENGR CHK: MFG ENGR CHK: Changed by: Changed by: Date Changed: Date Changed: Time Changed: Time Changed: QA CHK:...
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DEVELOPMENT GROUP 1 R&D CHK: R&D CHK: Size: Size: TITLE: TITLE: DOC CTRL CHK: DOC CTRL CHK: KU950 MAIN 1.1 MFG ENGR CHK: MFG ENGR CHK: Changed by: Changed by: Date Changed: Date Changed: Time Changed: Time Changed: QA CHK:...
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DEVELOPMENT GROUP 1 R&D CHK: R&D CHK: Size: Size: TITLE: TITLE: DOC CTRL CHK: DOC CTRL CHK: KU950 Main 1.1 MFG ENGR CHK: MFG ENGR CHK: Changed by: Changed by: Date Changed: Date Changed: Time Changed: Time Changed: QA CHK:...
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DEVELOPMENT GROUP 1 R&D CHK: R&D CHK: Size: Size: TITLE: TITLE: DOC CTRL CHK: DOC CTRL CHK: KU950 Main 1.1 MFG ENGR CHK: MFG ENGR CHK: Changed by: Changed by: Date Changed: Date Changed: Time Changed: Time Changed: QA CHK:...
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DEVELOPMENT GROUP 1 R&D CHK: R&D CHK: Size: Size: TITLE: TITLE: DOC CTRL CHK: DOC CTRL CHK: KU950 Main 1.1 MFG ENGR CHK: MFG ENGR CHK: Changed by: Changed by: Date Changed: Date Changed: Time Changed: Time Changed: QA CHK:...
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DEVELOPMENT GROUP 1 R&D CHK: R&D CHK: TITLE: TITLE: Size: Size: DOC CTRL CHK: DOC CTRL CHK: KU950 Main 1.1 MFG ENGR CHK: MFG ENGR CHK: Changed by: Changed by: Date Changed: Date Changed: Time Changed: Time Changed: QA CHK:...
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DEVELOPMENT GROUP 1 R&D CHK: R&D CHK: TITLE: TITLE: Size: Size: DOC CTRL CHK: DOC CTRL CHK: KU950 KEY 1.1 MFG ENGR CHK: MFG ENGR CHK: Changed by: Changed by: Date Changed: Date Changed: Time Changed: Time Changed: QA CHK:...
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FPCB to MEGA CAMERA MODULE - FPCB Side VISION MARK Section Date Sign & Name Sheet/ Sheets MODEL KU950 9 / 7 Designer NH LEEM 2006 Checked DRAWING KU950 Mega Camera FPCB-1.0 NAME Approved DRAWING LG Electronics Inc. Rev. 1.0 - 173 -...
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DEVELOPMENT GROUP 1 R&D CHK: R&D CHK: TITLE: TITLE: Size: Size: DOC CTRL CHK: DOC CTRL CHK: KU950 LCD SUB 1.0 MFG ENGR CHK: MFG ENGR CHK: Changed by: Changed by: Date Changed: Date Changed: Time Changed: Time Changed: QA CHK:...
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TP100 TP101 TP102 SIDE_CAMERA_HOT_KEY SIDE_VOLUME_DOWN_KEY SIDE_VOLUME_UP_KEY SIDE KEY Keypad Section Date Sign & Name Sheet/ Sheets MODEL KU950 9 / 7 Designer CH SUNG 2006 Checked DRAWING SIDE KEY-1.0 NAME Approved DRAWING LG Electronics Inc. Rev. 1.0 - 175 -...
9. Calibration Program 9. Calibration Program 9.1 Configuration of HOT KIMCHI 9.1.1 Configuration of directory HOT KIMCHI PROJECT Cal_Model KU950 At_Serial_Cmd.xml dacTable.cfg HOT_KIMCHI CmMqDll.dll Diag_NV6275_RevB.dll ComLMPLib_06.dll DLL_E5515CD.DLL Hot_KimchiD.exe DLL_PwrControlD.dll ShieldBox_DllD.dll Dll_SerialATD.dll Info_Db.txt Ezlooks.xml FTMLib.dll LG_RfCal_QuKU950Ag_099.dll ModelInfo.txt PwrSupply_Cmd.xml QLib.dll Setup_Cal_Test.xml : Directory...
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9. Calibration Program 9.1.2 Setup file (Info_Db.txt) /*cal*/[Default]=[KU950] /*cal*/[KU950]=[..\\Cal_Model\\KU950\\LG_RfCal_Qu KU950 Ag_099.dll] [ezlooks]=[off] [batcal]=[off] [svc]=[off] ‘on’ or ‘off’. (use only lower case) [standalone]=[off] [tescom]=[off] ‘auto’ or ‘cal’. (use only lower case) [process]=[cal] 1: Indication of ‘cal process’ or ‘auto process’ 2: Model name which is displayed on Hot Kimchi program 3: Relative path of Main Sequence dll file from Hot_KimchiD.exe...
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9. Calibration Program 9.1.3 Items of setup file [ezlooks] => The yes or no for using ezlooks Domestic: on, Overseas: off [batcal] => The yes or no for using battery calibration [svc] => The yes or no for using HOT KIMCHI at service center Domestic: off, Service Center: on [standalone] =>...
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9. Calibration Program 9.1.4 Example for setup file CAL Process Ex1) Service center [ezlooks]=[off] [batcal]=[off] [svc]=[on] [standalone]=[off] [tescom]=[off] [process]=[cal] Ex2) Overseas factory or Repair [ezlooks]=[off] [batcal]=[on] [svc]=[off] [standalone]=[on] [tescom]=[off] [process]=[cal] Ex3) Domestic factory [ezlooks]=[on] [batcal]=[on] [svc]=[off] [standalone]=[off] [tescom]=[off] [process]=[cal] In case of using Tescom S/B, set [tescom]=[on]. - 188 -...
9. Calibration Program 9.2 How to use HOT KIMCHI KU950 KU950 * Flow 1. Select the model name which you want 2. Click APPLY button to load the ‘cal’ lib file 3. Click START button to run the procedure which you want...
10. EXPLODED VIEW & REPLACEMENT PART LIST 10.2 Replacement Parts Note: This Chapter is used for reference, Part order is ordered by SBOM standard on GCSC <Mechanic component> Location Level Description Part Number Specification Color Remark IMT-2000(SLIDE) TISL0000903 Silver AAAY00 ADDITION AAAY0197401 Silver...
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10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Specification Color Remark MCCH02 CAP,SCREW MCCH0090801 MOLD, Silicone Rubber K-770, , , , , Black MGAZ00 GASKET MGAZ0048901 COMPLEX, (empty), , , , , MHFZ00 HINGE MHFZ0009301 MKAC00 KEYPAD,FUNCTION MKAC0009301 COMPLEX, (empty), , , , ,...
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10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Specification Color Remark MPBZ03 MPBZ0147901 COMPLEX, (empty), , , , , MSDC00 SPRING,LOCKER MSDC0008301 MTAA01 TAPE,DECO MTAA0123901 COMPLEX, (empty), , , , , MTAA02 TAPE,DECO MTAA0124001 COMPLEX, (empty), , , , , MTAB01 TAPE,PROTECTION MTAB0138901...
10. EXPLODED VIEW & REPLACEMENT PART LIST 10.2 Replacement Parts Note: This Chapter is used for reference, Part order is ordered by SBOM standard on GCSC <Main component> Location Level Description Part Number Specification Color Remark SAEY00 PCB ASSY,KEYPAD SAEY0052701 PCB ASSY, SAEB00 SAEB0018301...
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10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Specification Color Remark R103 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP R104 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP R109 RES,CHIP,MAKER ERHZ0000487 470 Kohm,1/16W ,J ,1005 ,R/TP R110 RES,CHIP,MAKER ERHZ0000493 51 Kohm,1/16W ,J ,1005 ,R/TP...
SBOM standard on GCSC Location Level Description Part Number Specification Color Remark ADEY00 DATA KIT KU950 CD Ass'y for Vodafone, Italy ADEY0008401 MBAZ00 MBAZ0004701 CD Cover MCHZ0030501 Silver Snow MCHZ00 COMPACT DISK COMPLEX, (empty), , , , ,...
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