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Asus P526 Service Manual

Repair lv3 4 sop
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Service Manual
P526 Repair Lv3 4 SOP
Version 1.1 2008/1/10

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Summary of Contents for Asus P526

  • Page 1 ■ Service Manual P526 Repair Lv3 4 SOP Version 1.1 2008/1/10...

  • Page 2: Table Of Contents

    ■ Service Manual Content 1.EQUIPMENT NEED ............................. 3 2. OUTLINE AND SIDE KEYS ........................3 3.INTRODUCTION ............................5 3.1 B ............................5 LOCK DIAGRAM 3.2 M ......................6 AIN COMPONENTS AND PLACEMENT 4.﹒ ﹒ ﹒ ﹒ MMI TEST PROGRAM..........................7 4.1 A )..............
  • Page 3 ■ Service Manual 12.GPS PURPOSE: ............................84 13. EQUIPMENT ............................84 14. TEST POINTS ............................85 14.1GPS A ........................... 85 CTIVE 14.2 P ............................86 ASSIVE 14.3 S RF S III ............................87 14.4 GPS P ........................... 88 OWER PART 15.

  • Page 4: Equipment Need

    ■ Service Manual 1.Equipment need A. Power supply B. Oscilloscope C. Headset of P526 D. TMC cable of P526. E. AC charger of P526 F. Battery of P526 G. Mini-USB cable H. Micro SD card I. PC 2. Outline and side keys...
  • Page 5 ■ Service Manual...

  • Page 6: Introduction

    ■ Service Manual 3.Introduction 3.1 Block diagram...

  • Page 7: Main Components And Placement

    ■ Service Manual 3.2 Main components and placement Top Side Bottom Side...

  • Page 8: Mmi Test Program

    ■ Service Manual 4. MMI test program (following hardware tests could be done more convenient through MMI testing program, and others will be tested through CrossBow) 4.1 Audio test (including headset, handset and speaker) Select “audio” application software. Insert headset and click “OK”...

  • Page 9: Headset Test

    ■ Service Manual 4.2 Headset test: After click “tri-angle button”, some voice shall output to left and right side of headset. Then, click “X” to next test for microphone of headset. Please click “circle button” and speak some words. The words you spoke will be played back to headset.

  • Page 10: Speaker Test

    ■ Service Manual 4.3 Speaker test： ： ： ： After click ”tri-angle button”, some audio is played to speaker. Then click “X” to next test for microphone. 4.4 Microphone test： ： ： ： The action is same with the testing of microphone in headset except the words will be played back to speaker.

  • Page 11: Button/Keypad Test

    ■ Service Manual 4.6 Button/keypad test Select “Button” application software Please follow up the indication to press correct key and next indication will show up, if the last correct key is pressed.

  • Page 12: Led Test

    ■ Service Manual 4.7 BT test (blue tooth test, only UART interface) Select “BTTestMode” application software It is auto-run and finally the string “Run Script successfully” is shown up, meaning the UART interface between OMAP850 and blue tooth chip is OK. 4.8 LED test Just select “LED”...

  • Page 13: Vibrator Test

    ■ Service Manual 4.9 Vibrator test Just select “LED” application software. It is auto test. 4.10 TMC test TMC cable Just select “A63xTMC” application software. It is auto test.
  • Page 14 ■ Service Manual In version pop up windows, just click “OK” TMC function is checked OK if the string “GPRMC,xxxxxx” is shown on the screen..

  • Page 15: Trouble Shooting

    ■ Service Manual 5.Trouble shooting Note: Let SW17 activated (pressed) to simulate battery cover existing with something; for example a tape etc. 5.1 System can’t power on Needed Equipments: A. Power supply set to 4V/2A. B. Oscilloscope Note: Normally, the current during system powered on will not over 300mA, and will be in the range of 50mA ~ 200mA.
  • Page 16 ■ Service Manual a. R169 shall be high (4V). b. R270 shall be high (4V). c. R255 shall be high (4V). d. Pin#1 of R250 shall be low (0V). Power on key: system will not be powered up if power on key is no function. Please press SW6 (power on key) and measure following signals.
  • Page 17 ■ Service Manual Pin#1 of R26 (XTAL_OUT) shall have 32K clock after power supply is turned on. Outputs of DC/DC and LDOs...
  • Page 18 ■ Service Manual (VIO_2V8) -- R134, R28, R24, R196, R33 shall be 2.8V. (VRTC_1V5) -- Pin#2 of C134, R30 shall be 1.5V. (VCORE_1V6) -- R27, pin#1 of C59 shall be 1.6V. (VMEM_1V8) -- R29, R55, R191 shall be 1V8. (VCAM_2V85) -- R5, pin#1 of C163 shall 2.85V (VBAT) -- R137, R54, pin1# of C161 shall be 4V Signals related with power on sequence.
  • Page 19 ■ Service Manual Timing after power supply is turned on Following wave is shown the timing after “power on key is pressed” (REGEN in channel 2) -- R59 shall be high (4V). (ON_nOFF in channel 3) -- R131 shall be high (1.5V). (MPU_RST# in channel 4) –...

  • Page 20: Touch Panel

    ■ Service Manual Timing after power on key is pressed (2) If above everything is OK and the current of power supply is stable stop in the range of 20mA to 70mA, then it could be memory (flash/ SDRAM (U4) or OMAP850 (U1)) problem. 5.2 Touch panel Needed Equipments: A.
  • Page 21 ■ Service Manual a. R175 (GP19_TSC_PWR_EN) shall be high (2.8V). b. R49 (TSC_PWR) shall be high (2.8V). c. Pin#1 of R84 shall be high (2.8V). d. The signals TSC_XP (T50); TSC_XM (T51); TSC_YP (T52); TSC_YM (T53) shall have voltage change when different location of touch panel is pressed and the pin#2 of R90 (GP134_TSC_IRQ#) shall have interruption signal (low pulse), then pin#4 of RN1 (I2C_SCL) and Pin#2 of RN1 (I2C_SDA) shall have read access timing output.

  • Page 22: Headset

    (including headset, handset and speaker) Needed Equipments: A. Power supply set to 4V/2A. B. Oscilloscope C. Headset of P526 5.3.1﹒ ﹒ ﹒ ﹒ Headset: a. When headset is inserted, pin#1 of R79 (GP82_JACK_DET) shall be high (1.8V), otherwise please check the green path...
  • Page 23 ■ Service Manual b. When play stereo music (or run audio test for MMI testing program) to headset, in the left channel, L23 and L14 shall have audio signals, otherwise please check the related components in the green path. c. L7 shall be (2.8V) d.

  • Page 24: Handset

    ■ Service Manual 5.3.2 Speaker a. Please play some music (or run audio test from MMI testing program) to speaker, L10 (C71) and L12 (C72) shall have audio signals. b. L8 shall have VBAT (4.0V) input. c. Pin#2 of R72 (GP42_SPK_AMP_SHDN#) shall be high (2.8V). d.

  • Page 25: Battery Charging

    (or run audio test from MMI testing program), then L15 shall have microphone bias 2.1V b. Please speak to microphone and L16 (C77) shall have voice signal. 5.4 Battery charging Needed Equipments: A. Battery of P526 B. Oscilloscope C. AC charger of P526...
  • Page 26 ■ Service Manual a. When AC charger (USB interface) is plugged, the F2 (VCHG_IN) and R120 (AC_USB_IN) shall have 5V voltage. A real battery needs to be connected. NTC in pin#3 of battery shall be 10K connected to pin#1 of C155 (BAT_TS#). c.

  • Page 27: Button/Keypad Test

    ■ Service Manual 5.5 Button/keypad test Needed Equipments: A. Power supply set to 4V/2A. B. Oscilloscope...
  • Page 28 ■ Service Manual...
  • Page 29 ■ Service Manual a. The column (KBC_0 to KBC4) pins are input, and rows (KBR_0 to KBR3) pins are output. Software will read the status of input pins and detect which key is pressing through scanning of output pins. b. For example; if numeral key #1 is pressing, KBR_0 shall be low (shorted to KBC_1). Opposite, you can check the related connection, if numeral key #1 does not work.

  • Page 30: Camera

    ■ Service Manual 5.6 BT test (blue tooth test, only UART interface) Needed Equipments: A. Power supply set to 4V/2A. B. Oscilloscope a. Please use MMI testing program to check the communication between OMAP850 (CPU) and blue tooth chip. 5.7 Camera Needed Equipments: A.
  • Page 31 ■ Service Manual d. When camera function is started, CAM_D0 ~ CAM_D7 (CAM_Y0 ~ CAM_Y7) shall have correct signals (high – >2.8V, low –> 0V) and R13 (CAM_MCLK), R112 (CAM_HS), R113 (CAM_VS) and R114 (CAM_PCLK) shall also have correct signals (high – >2.8V, low –> 0V). e.

  • Page 32: Lcd

    ■ Service Manual 5.8 LCD Needed Equipments: A. Power supply set to 4V/2A. B. Oscilloscope...
  • Page 33 ■ Service Manual a. First, please check the LCM connector is good or not. b. R172 (GP138_LCM_PWR_EN) shall be high (2.8V). c. R208 (LCM_VDC) and R209 (LCM_IOVDD) shall be 2.8V. d. R95 (LCM_RST#) shall be high (2.8V). e. Pin#27 (LCM_SPI_SCL), pin#29 (LCM_SPI_SDIO) and pin#30 (LCM_SPI_CS#) of CON6 shall have correct 2.8V SPI signals.
  • Page 34 ■ Service Manual g. R98 (LCM_PCLK), R99 (LCM_HSYNC), R100 (LCM_VSYNC) and R101 (LCM_DE) shall have correct signals like shown above.
  • Page 35 ■ Service Manual h. Above showing the backlight control IC, R67 shall be VBAT (4.0V). i. R68 (LCM_LED_P) is around 11V ~ 14V. j. Pin#2 of R17 (Backlight_DAC) shall be around 1V. k. R69 (LCM_LED_M) is around 0.1 ~ 0.3V. l.

  • Page 36: Led

    ■ Service Manual 5.9 LED Needed Equipments: A. Power supply set to 4V/2A. B. Oscilloscope Note: You can run LED test of MMI test program and LEDs (red, blue and green) will be sequentially flashing or use following behaviors to check them. a.

  • Page 37: Vibrator

    ■ Service Manual 5.10 Vibrator Needed Equipments: A. Power supply set to 4V/2A. B. Oscilloscope Note: You can run “Vibrator test” of MMI test program for testing or use vibrating setting while having in-coming call. a. Pin#2 of R77 shall have 4.0V (VBAT_CELL). b.

  • Page 38: Micro Sd Card

    ■ Service Manual 5.11 Micro SD card Needed Equipments: A. Power supply set to 4V/2A. B. Oscilloscope C. Micro SD card a. First please check the socket of micro SD card is broken or not. b. R197 (GP8_MMC_PWR_EN) shall be high (2.8V) c.

  • Page 39: Tmc

    5.12 TMC Needed Equipments: A. Battery of P526 B. Oscilloscope C. TMC cable of P526 Note: You can run TMC test of MMI test program for testing or test it through real TMC radio. a. Pin#1 of C173 shall have 3.3V.

  • Page 40: Usb Connection

    TMC cable is inserted. 5.13 USB connection (active sync.) Needed Equipments: A. Battery of P526. B. Oscilloscope C. Mini USB cable D. PC a. USB connection (for active sync.) uses same connector with TMC cable. Both signals R245 (GP139_DOCK_PIN#4) and T59 (GP137_TMC_EN) determine which device will be selected.

  • Page 41: Rf Purpose

    The Service Colleagues would be able to identify the GSM and Edge hardware trouble issues of P526 and then repair the hardware trouble issues soon. 7.Equipments require for identifying and repairing the GSM & Edge hardware trouble issues of P526 7.1 Software requirement: Phone Tool Modem Firmware：Latest Version...

  • Page 42: Test Points

    ■ Service Manual 8. Test points Front End (RF Switch) part: Including GSM antenna regions and Tx, Rx traces...
  • Page 43 ■ Service Manual PA(GSM and Edge Power Amplifier) part :...
  • Page 44 ■ Service Manual Transceiver part E-syren signal from base band...

  • Page 45: Components Displacement

    ■ Service Manual 9. Components displacement RF Part : GPS antenna Pad GSM antenna Pad Front End GPS area Transceiver...
  • Page 46 ■ Service Manual Front End (RF switch) & GSM antenna Pad...
  • Page 47 ■ Service Manual Component displacement plot 1...
  • Page 48 ■ Service Manual Component displacement plot 2 Transceiver 及 E-syren part Component displacement plot 3...

  • Page 49: The Setups For The Mobile Hardware Testing And Testing Results

    ■ Service Manual 10. The setups for the mobile hardware testing and testing results Front End (RF Switch) : Including GSM antenna trace and the Tx, Rx trace of the front end module. GSM antenna trace：To identify whether the GSM antaean trace is conducted or not, the conductivity between R385 and C340 ( ) should be measured with Component displacement plot 1...
  • Page 50 ■ Service Manual Tx trace of the front end module：Do this process with a PCB and Pegasus repair tool Repair tool setting： Band select The red light would be lightened if the connection between the PC and Comport select the PCB is ok Tx repair tool setup The setup of the Pegasus repair tool is as the above plots showing.
  • Page 51 ■ Service Manual 8960： Select the item...
  • Page 52 ■ Service Manual EGSM band select If the PCS band measurement, choose the PCS band.
  • Page 53 ■ Service Manual TCH band, channel and PCL selecting If PCS band measurement, choose Channel 512 and PCL0...
  • Page 54 ■ Service Manual...
  • Page 55 ■ Service Manual...
  • Page 56 ■ Service Manual 8820： If PCS band measurement, choose GSM/PCS1900...
  • Page 57 ■ Service Manual For PCS band measurement, choose Channel 512 For PCS band measurement, choose PCL0...
  • Page 58 ■ Service Manual 850/EGSM loss, fill in DCS/PCS loss, fill in the positive number the positive number...
  • Page 59 ■ Service Manual...
  • Page 60 ■ Service Manual...
  • Page 61 ■ Service Manual After the setups for 8960 or 8820,the semi-rigid with DC blocker and the Spectrum analyzer should be used to do the following measurements. The setup of the spectrum analyzer are shown as below: Band select The red light would be lightened if the connection between the PC and...
  • Page 62 ■ Service Manual...
  • Page 63 ■ Service Manual...
  • Page 64 ■ Service Manual If the Ref level requirement is not 50 dBm, it would be remarked. Test point: C340，As component displacement plot 1 show. Purpose: To make sure that the RF signal emitting from the front end module(D1016) is correct. The TXP value got by the measurement would be 8~12 dB smaller than the TXP value shown on the 8960 or 8820 faceplate.
  • Page 65 ■ Service Manual EGSM band result Tx measurement result 2 Tx measurement result 1 PCS band measurement result Test point: C456 for 850 & EGSM band ； C457 for DCS & PCS. (see component displacement plot 1) Purpose: To make sure that the RF signal which emits from the PA and PA output circuit is...
  • Page 66 ■ Service Manual correct. EGSM band test result PCS band test result Test points: C450 for 850 & EGSM bands；C451 for DCS & PCS bands, as component displacement plot 2.
  • Page 67 ■ Service Manual Purpose: To make sure the RF signal emitting from the PA is correct. EGSM band test result PCS band test result Test points:C312 for 850 & EGSM bands；C313 for DCS & PCS bands, as component displacement plot 2.
  • Page 68 ■ Service Manual Purpose: Compare the test results of C312 and C450 ; the test results of C313 and C451. By this comparison, it could verify whether the PA works correctly or not. this test, the reference level of the spectrum analyzer should be 20 dBm. EGSM band test result PCS band test result Test point:R308, as component displacement plot 2.
  • Page 69 ■ Service Manual Purpose: To make sure the V signal emitting from the transceiver is correct. This V ramp ramp signal is the control signal for PA to be functioned well. In this test, use the oscilloscope. The amplitude of the measured signal would change with the different DAC values.
  • Page 70 ■ Service Manual Test point:R384，as component displacement plot 3. Purpose: To make sure the control signal emitting from the E-syren to the transceiver is correct. In this test, use the oscilloscope. The amplitude of the measured signal would change with the different DAC values. The amplitudes would distribute among 1.5~1.8 V.
  • Page 71 ■ Service Manual Rx trace: Do this process with a PCB and Pegasus repair tool. The reference level of the spectrum analyzer should be –30 dBm in this test. As for the other setups, set them as Tx trace testing. Repair tool setting：...
  • Page 72 ■ Service Manual 8960 Rx test setup...
  • Page 73 ■ Service Manual At DCS band test, fill in 1805.267 MHz; at PCS band test, fill in 1805.267 MHz. 8820 Rx setup At DCS band choose GSM/DCS1800 At PCS band choose GSM/PCS1900...
  • Page 74 ■ Service Manual At DCS band, fill in At PCS band, fill in 512 CH；DL：1805.267MHz 512 CH；DL：1930.267MHz...
  • Page 75 ■ Service Manual...
  • Page 76 ■ Service Manual...
  • Page 77 ■ Service Manual Test point: C339 & C344 for 850 & EGSM；C350 for DCS；C354 for PCS，as component displacement plot 1 Purpose: To verify the received RF signal is correct after the D1016 (RF connector). EGSM band test result C339 Rx measurement result 1 C344...
  • Page 78 ■ Service Manual DCS band test result C350 Rx measurement result 2 Rx measurement result 3 PCS band test result C354 Test point: RN300A~D，as component displacement plot 3 Rx measurement result 4...
  • Page 79 ■ Service Manual Purpose: To make sure the IQ signal emitting from the Transceiver to E-syren is correct. In this testing, both the spectrum analyzer and the oscilloscope could be used. As for the reference level setup of the spectrum analyzer, it should be –50 dBm. EGSM band test result by spectrum analyzer Rx measurement result 5 EGSM band test result by oscilloscope...
  • Page 80 ■ Service Manual PCS band test result by spectrum analyzer Rx measurement result 7 PCS band test result by oscilloscope Rx measurement result 8...
  • Page 81 ■ Service Manual Test point: C367，as component displacement plot 3 Purpose: To make sure the 26 MHz signal is correct. In this test, use the oscilloscope. Rx measurement result 9...

  • Page 82: Rf Board Level Examination Procedure

    ■ Service Manual 11. RF Board level examination procedure 11.1if the PCB could not boot Check C367 by the oscilloscope to confirm whether the 26 MHz signal is correct or not. (as the Rx measurement result 9) If the 26 MHz signal is not correct, change the device, OSC 300 26 MHz. OSC 300 26MHz 1.

  • Page 83: Gsm Apc Fail

    If the PCB could not boot correctly, you should do the trouble shoot procedure of the E-syren and the OMAP 850. The trouble shoot guide about the base band part of P526 has recorded this procedure amply. E-syren...

  • Page 84: Afc-Visa Fail

    ■ Service Manual 11.3 AFC-VISA fail m. Do 2. AGC-Gmagic out of limit test first, from step a ~f. n. If there is nothing wrong at the Rx trace, do 3. GSM APC fail procedure, from step d ~ f. 11.4 Edge APC fail a.

  • Page 85: Gps Purpose

    Service Manual 12.GPS Purpose: The Service Colleagues would be able to identify the GPS hardware trouble issues of P526 and then repair the hardware trouble issues soon. 13. Equipment requires for identifying and repairing the GPS hardware trouble issues of P526 13.1 Software...

  • Page 86: Test Points

    ■ Service Manual 14. Test points 14.1GPS Active Path...

  • Page 87: Passive Path

    ■ Service Manual 14.2 Passive Path...

  • Page 88: Sirf Stariii

    ■ Service Manual 14.3 SiRF StarIII 4. Power part test points...

  • Page 89: Gps Power Part

    ■ Service Manual 14.4 GPS Power part Testing signal from baseband...

  • Page 90: Component Displacement

    ■ Service Manual 15. Component displacement GPS Antenna Testing signal from baseband...
  • Page 91 ■ Service Manual GPS Function Block...

  • Page 92: Test Points Displacement Plot

    ■ Service Manual 16. Test points displacement plot GPS Antenna Test point displacement plot 1 Testing signal from baseband  Test point displacement plot 2...
  • Page 93 ■ Service Manual GPS Function Block Test point displacement plot 3...

  • Page 94: Gps Hardware Examination Procedure

    ■ Service Manual 17. GPS Hardware Examination Procedure The GPS examination procedure includes six parts. In the six parts, SiRFDemo PPC program must be used. (Appendix A) 1. Start the SiRFDemoPPC program. Then, make sure that the GPS comport setting is [Port:COM1][Baud Rate:4800 or 57600].
  • Page 95 ■ Service Manual 4.Passive Path Fault Finding Chart Remove the GPS active antenna See if the GPS antenna contacts Replace the GPS antenna with U317 well? with a new one Check if C393.Pin2 and Change CON302 C419 Pin 1 get connection with a new one directly? Check if the voltage of...
  • Page 96 ■ Service Manual 5.Power Part Fault Finding Chart Make sure the V_BAT is 4V Do SiRF StarIII Fault Finding Chart or change Check if U318 the voltage of R374 >1.6V? Check if C412 and C417 Replace U320 are 2.85±5% with a new one (V) ? Check if the voltage of V_bat is not on...
  • Page 97 ■ Service Manual 6.SiRF StarIII Fault Finding Chart Put the GPS active antenna into CON301 Checnk C382(2.85V±5%) Do Power Part Fault C383(1.5V±5%) Finding Chart C389(2.85V±5%) Measure Replace X301 with a C401.Pin1 new one Measure Replace C406.Pin2 X300, C810, C818 with new ones Measure Replace U312 T305...

  • Page 98: Measurement Results Of All Test Points

    ■ Service Manual 18. Measurement results of all test points Test point : T305 Test point :T306...
  • Page 99 ■ Service Manual Test point :C401 Test point :C406...

  • Page 100: Bt Repair Purpose

    ■ Service Manual 19. BT repair Purpose: The Service Colleagues would be able to identify the BT hardware trouble issues of P526 and then repair the hardware trouble issues soon. 20. Equipments of BT repair 20.1 Software requirement: Modem Firmware：Latest Version P526 BT repair tool 20.2 Hardware requirement:...

  • Page 101: Components Placement

    ■ Service Manual 21.2 Components placement Figure of P526 board...

  • Page 102: Bt Debug

    ■ Service Manual 22. BT debug . The setups for the mobile hardware testing and testing results 1. Methods about BT debug Use the software to set the device under BT-Test mode Choose the designed channel. Touch the BT-Antenna pad (U5) with a RF probe. Measure the signal by a spectrum.
  • Page 103 ■ Service Manual 2. Choose the designed channel and then click “Yes” (是 是 是 是 ) Step 2 3. Click “Run” Step 3...
  • Page 104 ■ Service Manual 4. Now the device is under BT test mode. Step 4 3. Measured Graph:...
  • Page 105 ■ Service Manual 4. RF Board level examination procedure Flow Chart...

  • Page 106: Appendix A

    ■ Service Manual Appendix A: Put SIRFDemoPPC at Micro SD Card 1. choose [SiRFDemoPPC] 2. choose [OK]...
  • Page 107 ■ Service Manual 1. choose [OK] 1. choose [Connect] 4800 or 57600 1. choose [Done]...
  • Page 108 ■ Service Manual SiRFDemoPPC plantface 1.choose [Signal] GPS signal receiving...
  • Page 109 ■ Service Manual The green signal means the signal has been demodulated. When all tests are finished 1. choose [setup] 1. choose [Exit]...
  • Page 110 ■ Service Manual...
  • Page 111 ■ Service Manual Appendix B:GPS firmware download 1.choose [Pegasus_DGPS.exe] 1.choose [Browse]...
  • Page 112 ■ Service Manual 1.choose [Instant-Fix-GSW3.2.4Pat2_3.1 .00.12-SDK001P1.00 20061227 NMEA57600EE.s] 1.choose [Start] The re-download begins...
  • Page 113 ■ Service Manual The re-download is finished Mobile re-boot...

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