Table Of Contents 6. STAND ALONE TEST ......1. Introduction ..........6.1 Introduction ..........74 1.1 Purpose ........... 2 6.2 Setting Method ........74 1.2 Regulatory Information ......2 6.3 Means of Test ........74 1.3 Abbreviations ........... 4 7. AUTO CALIBRATION ......
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 LG-512W 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.
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1. Introduction E. Notice of Radiated Emissions The LG-512W 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.
Global System for Mobile Communications IPUI International Portable User Identity Intermediate Frequency Liquid Crystal Display Low Drop Output Light Emitting Diode LG-510W LG GSM Phone LG Electronics OPLL Offset Phase Locked Loop Power Amplifier Module Printed Circuit Board Programmable Gain Amplifier Phase Locked Loop...
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1. Introduction Travel Adapter Time Division Duplex TDMA Time Division Multiple Access UART Universal Asynchronous Receiver/Transmitter Voltage Controlled Oscillator VCTCXO Voltage Control Temperature Compensated Crystal Oscillator Wireless Application Protocol - 5 -...
2. PERFORMANCE 2. PERFORMANCE 2.1 H/W Features Item Feature Li-Polymer, 630 mAh Standard Battery Size: 44 68.6 5.6 mm Weight: 22 g Li-Ion, 940 mAh Extended Battery Size: 44 68.6 8.7 mm Weight: 32 g AVG TCVR Current GSM , EGSM: 243 mA, DCS: 209 mA Stand by Current <...
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2. PERFORMANCE Item Description Specification GSM, EGSM BER (Class II) < 2.439% @-102 dBm Bit Error Ratio BER (Class II) < 2.439% @-100 dBm RX Level Report Accuracy 3 dB 8 3 dB Frequency (Hz) Max.(dB) Min.(dB) Sending Response 1,000 2,000 3,000 3,400...
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2. PERFORMANCE Item Description Specification ≤ 30 ppm 32.768KHz tolerance Full power < 243 mA (GSM, EGSM) ; < 209 mA (DCS) Power Consumption Standby - Normal ≤ 3 mA (Max. power) - Using Test mode on DSP Sleep function ≤ 6 mA GSM/ Level 7 (Battery Capacity 630mA): 162 Min Talk Time GSM/ Level 12 (Battery Capacity 630mA): 240 Min...
3. TECHNICAL BRIEF 3. TECHNICAL BRIEF 3.1 Receiver The receiver part contains all active circuits for a complete, full receiver chain with the exception of RF PLL VCO(U302) and discrete RF SAW filters. The filtered and amplified signal is processed from the RF-mixer inputs to the baseband(BB) output.
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3. TECHNICAL BRIEF A. RF front end The RF receive signals(GSM 925MHz ~ 960MHz, DCS 1805MHz ~ 1880MHz) are input via the antenna or coaxial connector. An antenna matching circuit is between the antenna and the connector. The FEM(FL301) is used to control the Rx and TX paths. And, the input signals VC1 and VC2 of a FL301 are connected to 2-Input AND Gates(U306,U307) to switch either TX or RX path on.
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3. TECHNICAL BRIEF C. RX I/Q Demodulator The amplified IF signal at 45 MHz passes to the demodulator and is mixed down to DC to generate I and Q BB signals. The BB signals pass via integrated low-pass filters to the BB A/D converters. The remainder of the channel filtering is performed by the BB chipset.
3. TECHNICAL BRIEF 3.2 Synthesizer The synthesizer IC, the Si4133G-XM2, comprises three complete PLLs. One, which is active all of the time and in this application produces a constant 1080MHz. This is the IF oscillator and is divided down inside the HD 155128 to produce the 270 MHz for the second receive mixer, and with an optional further division to 135 MHz for the transmitter quadrature modulator.
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3. TECHNICAL BRIEF The IF and RF output frequencies are set by programming the N Divider registers. All three PLL R Dividers are fixed at R = 65 to yield a 200 kHz phase detector update rate from a 13 MHz reference frequency.
3. TECHNICAL BRIEF 3.3 Transmitter The Transmitter part contains HD155128TF active parts and PAM, APC IC, coupler, FEM(front-end module) circuit. The HD155128TF active part consists of a vector modulator and offset phase- locked loop block(OPLL) including down-converter, phase detector, loop filter and dual band transmit VCO which can operate at either final RF output frequency.
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3. TECHNICAL BRIEF A. TX IF Modulator The TX I and Q signals from BB analog chipset, AD6521(U2), #F9, E9, C9, D9 are fed to #17~20 of the HD155128TF TX modulator(U301), where they are then modulated onto either a TX IF of 270MHz(for GSM-TX) or 135MHz(for DCS-TX) by the quadrature mixer inside U301.
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3. TECHNICAL BRIEF B. OPLL The down converter contained inside of the HD155128TF (U301) mixes the TX RF frequency with the RF VCO signal from the Si4133G-XM2 (U302) to generate a `feedback' signal at 270 MHz for GSM and EGSM operation or 135 MHz for DCS operation. The `feedback' signal passes via a limiter to one port of the phase detector.
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3. TECHNICAL BRIEF Figure 3-7. Power Amplifier and its Control Part Circuits. D. PA Circuit and Control The power amplifier control circuit ensures that the RF signal is regulated to the required limits of operation. RF power is controlled by driving the power control pins of power amplifier and sensing the resultant RF output power via a directional coupler (U305).
3. TECHNICAL BRIEF 3.4 13MHz Clock The 13 MHz clock (VC-TCXO-208C) consists of a TCXO (Temperature Compensated Crystal Oscillator) which oscillates at a frequency of 13 MHz. It is used within the Si4133G_XM2 Synthesizers, BB Analog chip-set (AD6521), and Digital (AD6522).
3. TECHNICAL BRIEF 3.6 Digital Main Processor Figure 3-10. System Interconnection of the AD6522 External Interfaces - 22 -...
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3. TECHNICAL BRIEF Interconnection with external devices A. RTC block interface Countered by external X-TAL The X-TAL oscillates 32.768KHz B. LCD module interface Controlled by LCD_CS, LCD_RES, LCD_A0, /WR, /RD, DATA [00...07] ports Table 3-8. LCD Module Interface. Description LCD_CS LCD chip enable LCD_RES This pin resets LCD module...
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The AD6522 check status periodically in call mode if SIM card is inserted or not , but the AD6522 don't check in deep sleep mode. Interface by SIM_IO, SIM_CLK, SIM_RST Table 3-10. SIM Interface. Description This pin receives and sends data to SIM card. LG-512W support only 3.0 volt SIM_IO interface SIM card. SIM_CLK Clock 3.5MHz frequency...
AFC DAC: 13 bits IDAC: 10 bits D. Voiceband section Receive audio signal from MIC. LG-512W use differential configuration. Send audio signal to Speaker. LG-512W use differential configuration. It interconnect with external device like main microphone, main speaker, ear-phone and Hands free kit through the VINNORP, VINNORN, VOUTNORP, VOUTNORN, VINAUXP, VINAUXN, VOUTAUXP, VOUTAUXN and BUZZER port.
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2.80 V (is provided to Flash) D. Battery charging block It can be used to charge Lithium Ion and/or Nickel Metal Hydride batteries. LG-512W use Li-Ion and Li-polymer battery only. Charger initialization, trickle charging, and Li-Ion charging control are implemented in hardware.
Extended battery (Optional): Capacity - 940 mAh, Li-Ion 3.9 Memories 32M flash memory + 4M SRAM 16 bit parallel data bus ADD01 ~ ADD21 RF Calibration data art stored in Flash (LG-512W do not use EEPROM) 3.10 Display and Interface Table 3-12. LCD Module. Description Display format...
3. TECHNICAL BRIEF 3.12 Microphone The microphone is soldered to the main PCB. The audio signal is passed to VINNORP (#K8) and VINNORN (#K7) pins of the AD6522. The voltage supply 2V45_VAN is output from the ADP3408, and is a bias voltage for both the VINNOR (through R41) and VINAUX (through R54) lines. The VINNOR or VINAUX signal is then A/D converted by the Voiceband ADC part of the AD6521.
3. TECHNICAL BRIEF 3.14 Hands-free Interface The audio out (VOUTAUXP and VOUTAUXN) to the hands-free kit consists of a pair of differential signals from the AD6521 auxiliary outputs (#K9, #K6), which are tracked down the board to carkit connector (CN3) at the base of the handset. The DC level of the signal is supplied to the VOUTAUX pin.
3. TECHNICAL BRIEF 3.16 Key Back-light Illumination In key back-light illumination, there are 8 green LEDs in Main Board, which are driven by KEY_BACKLIGHT line from the AD6522. Figure 3-17. Key Back-light Illumination. 3.17 LCD Back-light Illumination In LCD back-light illumination, there is an EL driver in FPCB Board and EL sheet in LCD Module, which is driven by LCD_BACKLIGHT line from the AD6522.
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4. TROUBLE SHOOTING • Replacement of a PAM A PAM (Power Amplifier Module ; U303) may need to be replaced with new one due to following problems. - Can not make a call after serious damage / impact on the phone or dropping the phone. - Can not make a call again after sending or receiving call.
5. TEST POINT DATA 5. TEST POINT DATA A. Received RF Level and Checks This section shows the typical RF levels expected throughout the receiver path. A block diagram showing the locations of the RF measurement points and levels is shown in Fig. 5-4. •...
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5. TEST POINT DATA B. Transmitted RF Level and Checks This section shows the typical RF levels expected throughout the transmitter path. A block diagram showing the locations of the RF measurement points and levels is shown in Fig. 5-7. •...
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5. TEST POINT DATA • Control Signal Test Points (1) TXPA SCLK SDATA AGCEN PLL_PD TXEN RX ON1 13MHz RX ON2 2.7V output Figure 5-8. Control Signal Test Points (1). - 66 -...
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5. TEST POINT DATA • Control Signal Test Points (2) TXEN TXRAMP Figure 5-9. Control Signal Test Points (2). - 67 -...
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5. TEST POINT DATA Figure 5-10. Regulator Output (RF2V8). Figure 5-11. VCTCXO Power Supply (2V7_VCTCXO). - 68 -...
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5. TEST POINT DATA Figure 5-12. 13MHz Clock. Figure 5-13. Control Signal of FEM in RX mode (GSM,DCS both). - 69 -...
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5. TEST POINT DATA Figure 5-14. Control Signal of FEM in GSM TX mode. Figure 5-15. Control Signal of FEM in DCS TX mode. - 70 -...
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5. TEST POINT DATA Figure 5-16. CLK, DATA, SEN. Figure 5-17. CLK, DATA, AGCEN. - 71 -...
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5. TEST POINT DATA Figure 5-18. RXON1, RXON2. Figure 5-19. TXEN, TARAMP, TXPA. - 72 -...
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5. TEST POINT DATA Figure 5-20. TX IQ Signal. Figure 5-21. RX IQ Signal. - 73 -...
This manual explains how to examine the status of RX and TX of 510W model. A. Tx Test TX test- this is to see if the transmitter of LG-512W is activating normally B. Rx Test RX test- this is to see if the receiver of LG-512W is activating normally.
7. AUTO CALIBRATION 7. AUTO CALIBRATION 7.1 Overview AutoCal (Auto Calibration) is the PC side calibration tool that perform Rx and Tx calibration with Agilent 8960 or other equipment. AutoCal generate calibration data by communicating with phone and measuring equipment and write it into calibration data block of flash memory in GSM phone. 7.2 Requirements •...
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7. AUTO CALIBRATION • Connection Connect to phone : Connect to the phone which you want to measure. This procedure checks whether the PC is connected to “Ag8960” or not. If not connected to “Ag8960” try to connect to “Ag8960”. After that it performs sync. procedure with phone.
7. AUTO CALIBRATION 7.4 AGC This procedure is for Rx calibration. In this procedure, We can get RSSI correction value. Set band EGSM and press Start button the result window will show correction values per every power level and gain code and the same measure is performed per every frequency.
8. ASSEMBLY INSTRUCTION 8. ASSEMBLY INSTRUCTION 8.1 Disassembly 1. Push the battery locker to remove the battery pack. 2. Loosen the 4 screws as shown below. Figure 8-1. Removing Battery pack and screws. 3. Carefully lift up the bottom of Rare Cover first, then hold the covers and twist them. Figure 8-2.
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8. ASSEMBLY INSTRUCTION Figure 8-3. Reassmbly of of the covers. Note: When reassembling the covers, assemble the Antenna hook first then the rest as shown in Fig. 8-3. 4. Turn the Antenna anti-clockwise to remove from the cover. 5. Use a sharp awl to push away the antenna-bushing. Figure 8-4.
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8. ASSEMBLY INSTRUCTION 6. Use a tweezers to remove the Battery Locker. Figure 8-5. Removing Battery Locker - 80 -...
8. ASSEMBLY INSTRUCTION 8.2 Disassembly of Front Cover Components 1. Lift up the Main PCB carefully and melt the solder connecting the Main PCB and the Flexible PCB. Main PCB Figure 8-6. Removing solder on Main PCB 2. Then remove the locker as shown below. Figure 8-7.
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8. ASSEMBLY INSTRUCTION 3. Push away the Volume BTN and function BTN. 4. For removing the Indicator, use a small driver to push it down. Figure 8-8. Removing Buttons and Indicator 5. Use a small ‘-’ type driver to push away a pin from the hinge. 6.
8. ASSEMBLY INSTRUCTION 8.3 Disassembly of Folder 1. Remove a hinge from the folder. 2. Then detach screw caps and screws Figure 8-10. Removing Hinge and screws 3. Disassemble the rest of components as shown below. Fiigure 8-11. Disassembly of Folder component - 83 -...
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8. ASSEMBLY INSTRUCTION 4. Firstly , melt the solder connecting the FPCB and LCD. Then remove the PAD and locker in the following sequence. Figure 8-11. Detaching LCD from FPCB - 84 -...
9.1 Main Board The LG-512W is made up of two PCBs. In lower part of the folder, there is a main board. And in the upper part of the folder, there is a FPCB. Below you can see the block diagram of both PCBs.
12. DOWNLOAD AND CALIBRATION 12. DOWNLOAD AND CALIBRATION 12.1 Download Fig. 12-1 and 12-2 illustrate a download set-up. Figure 12-1. Download Setup Type1 (Using Data Kit). • Download procedure Access flash loader program in PC. Select source code you want to download. Don’t check OWCD in flash loader window.
12. DOWNLOAD AND CALIBRATION 12.2 Calibration A. Equipment List Table 12-1. Calibration Equipment List. Equipment for Calibration Type / Model Brand Wireless Communication Test Set HP-8960 Agilent RS-232 Cable and Test JIG RF Cable Power Supply HP-66311B Agilent GPIB interface card HP-GPIB Agilent Calibration and Final test software...
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12. DOWNLOAD AND CALIBRATION Figure 12-4. The top view of Test Jig. C. Test Jig Operation Table 12-2. Jig Power. Description Power Supply usually 4.0V DC Adaptor 9.5V, 500mA Table 12-3. Jig DIP Switch. Switch Number Name Description Switch 1 RPWRON In ON state, phone is awaked.
12. DOWNLOAD AND CALIBRATION Table 12-4. LED Description. LED Number Name Description LED 1 POWER Power is provided for Test Jig LED 2 Indicate charging state of the phone battery LED 3 UART Indicate data transfer state through the UART port LED 4 Indicate data transfer state through the MON port 1.
13. ENGINEERING MODE 13. ENGINEERING MODE A. About Engineering Mode Engineering mode is designed to allow a service man/engineer to view and test the basic functions provided by a handset. B. Access Codes The key sequence for switching the engineering mode on is 2945#*#. Pressing END will switch back to non-engineering mode operation.
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13. ENGINEERING MODE E. ADC (Analog to Digital Converter) [1-5] This displays the value of each ADC. • MVBAT ADC (Main Voltage Battery ADC) [1-5-1] • AUX ADC (Auxiliary ADC) [1-5-2] • TEMPER ADC(Temperature ADC) [1-5-3] F. BATTERY [1-6] • Bat Cal [1-6-1] : This displays the value of Battery Calibration.
13. ENGINEERING MODE 13.2 RF Test [MENU 2] Radio Frequency Test A. SAR Test [2-1] This menu is to test the Specific Absorption Rate. • SAR Test On [2-1-1] : Phone continuously process TX only. Call-setup equipment is not required. •...
13. ENGINEERING MODE 13.4 Trace option [MENU 4] This is NOT a necessary menu to be used by neither engineers nor users. 13.5 Call Timer [MENU 5] A. All calls [5-1] This displays total conversation time. User cannot reset this value. B.