Service Manual
Page 17
The IFLO frequency is filtered and used as the reference input to the OPLL. The baseband software is able to cancel out differential DC offsets in the I/Q baseband signals caused by 2 to generate a SSB IF signal that can drive external poweramplifiers (PA), ...
The IFLO frequency is filtered and used as the reference input to the OPLL. The baseband software is able to cancel out differential DC offsets in the I/Q baseband signals caused by 2 to generate a SSB IF signal that can drive external poweramplifiers (PA), ...
Service Manual
Page 28
... functions like MMI, SIM and Universal System Connector (USC).The Digital Signal Processing (DSP) subsystem primarily hosts all the GSM terminal software, including the layer 1, 2 and 3of the GSM protocol stack, the MMI, and applications software such as interrupt controller, real timeclock, watch dog timer, power management and a timing and control module.
... functions like MMI, SIM and Universal System Connector (USC).The Digital Signal Processing (DSP) subsystem primarily hosts all the GSM terminal software, including the layer 1, 2 and 3of the GSM protocol stack, the MMI, and applications software such as interrupt controller, real timeclock, watch dog timer, power management and a timing and control module.
Service Manual
Page 52
Yes No Replace U500 Redownload software and calibration againg - 51 - TROUBLE SHOOTING TEST POINT Waveform DIAG2 CIRCUIT RF2V85 C518 C519 0.022u 22p VDD2 32 30 31 29 27 28 GND4 GND2 GND3 RXQP XOUT XEN U500 SI4205 RXQN 1 RXIP 2 3 RXIN TXIP 4 TXIN 5 6 TXQP TXQN 7 C532 1000p C514 39p C516 39p 13MHZ QP QN IN IP Checking Flow Graph 4-4 Che ck C514, C516. Check if there is Any Major Difference Refer to Graph 4-4 Similar? (4) Checking RX IQ 4 .
Yes No Replace U500 Redownload software and calibration againg - 51 - TROUBLE SHOOTING TEST POINT Waveform DIAG2 CIRCUIT RF2V85 C518 C519 0.022u 22p VDD2 32 30 31 29 27 28 GND4 GND2 GND3 RXQP XOUT XEN U500 SI4205 RXQN 1 RXIP 2 3 RXIN TXIP 4 TXIN 5 6 TXQP TXQN 7 C532 1000p C514 39p C516 39p 13MHZ QP QN IN IP Checking Flow Graph 4-4 Che ck C514, C516. Check if there is Any Major Difference Refer to Graph 4-4 Similar? (4) Checking RX IQ 4 .
Service Manual
Page 60
Yes No Replace U500 Redownload the Software And calibrate - 59 - (6) Checking TX IQt TEST POINT 4 . TROUBLE SHOOTING Waveform CIRCUIT DIAG2 RF2V85 C518 C519 0.022u 22p 31 32 30 28 29 27 VDD2 GND3 GND4 GND2 XOUT RXQP XEN U500 SI4205 RXQN 1 2 RXIP RXIN 3 TXIP 4 5 TXIN TXQP 6 TXQN 7 Graph 4-8 C532 1000p C514 39p C516 39p 13MHZ QP QN IN IP Checking Flow Check if there is Any Major Difference Refer to Graph 4-8 Similar?
Yes No Replace U500 Redownload the Software And calibrate - 59 - (6) Checking TX IQt TEST POINT 4 . TROUBLE SHOOTING Waveform CIRCUIT DIAG2 RF2V85 C518 C519 0.022u 22p 31 32 30 28 29 27 VDD2 GND3 GND4 GND2 XOUT RXQP XEN U500 SI4205 RXQN 1 2 RXIP RXIN 3 TXIP 4 5 TXIN TXQP 6 TXQN 7 Graph 4-8 C532 1000p C514 39p C516 39p 13MHZ QP QN IN IP Checking Flow Check if there is Any Major Difference Refer to Graph 4-8 Similar?
Service Manual
Page 62
... = HIGH YES NO Does it work properly? NO YES THE PHONE WILL POWER ON. TROUBLE SHOOTING Checking Flow START Check Battery Voltage > 3.35V ? Re-download software Does it work properly? Check Battery Voltage > 3.35V ? Replace the main board - 61 - 4 .
... = HIGH YES NO Does it work properly? NO YES THE PHONE WILL POWER ON. TROUBLE SHOOTING Checking Flow START Check Battery Voltage > 3.35V ? Re-download software Does it work properly? Check Battery Voltage > 3.35V ? Replace the main board - 61 - 4 .
Service Manual
Page 89
5. Check - 88 - Select Port 2. Check 3. Press Write to start Download and press key to choose software (AlchemyDate.mot) 1. DOWNLOAD AND CALIBRATION 3.
5. Check - 88 - Select Port 2. Check 3. Press Write to start Download and press key to choose software (AlchemyDate.mot) 1. DOWNLOAD AND CALIBRATION 3.
Service Manual
Page 110
... MODE 9.4 Trace option [MENU 4] This is NOT a necessary menu to be used during the Manufacturing process. 2) Servicemen should be restored again. 9.7 S/W version [MENU 7] This displays software version stored in data block.
... MODE 9.4 Trace option [MENU 4] This is NOT a necessary menu to be used during the Manufacturing process. 2) Servicemen should be restored again. 9.7 S/W version [MENU 7] This displays software version stored in data block.
Service Manual
Page 131
Description 3 SBPL00 BATTERY PACK,LI-ION 3 SSAD00 ADAPTOR,AC-DC 3 WSAY00 SOFTWARE,APPLICATION 3 WSYY00 SOFTWARE Part Number Specification SBPL0077901 3.7 V,830 mAh,1 CELL,PRISMATIC ,FG101 RUSSV423450, Innerpack SSAD0007835 FREE ,50 Hz,5.2 V,800 mA,CE,CB ,UK(IO.24P) WSAY0014101 B2050 TMU PC-Sync WSYY0239601 B2050P40FL-44-V101-234-30 APR 13 2005+1@ B2050 TMU S/W Color Remark - 130 - 12. EXPLODED VIEW && REPLACEMENT PART LIST 12.3 Accessory Note: This Chapter is used for reference, Part order is ordered by SBOM standard on GCSC Location Level No.
Description 3 SBPL00 BATTERY PACK,LI-ION 3 SSAD00 ADAPTOR,AC-DC 3 WSAY00 SOFTWARE,APPLICATION 3 WSYY00 SOFTWARE Part Number Specification SBPL0077901 3.7 V,830 mAh,1 CELL,PRISMATIC ,FG101 RUSSV423450, Innerpack SSAD0007835 FREE ,50 Hz,5.2 V,800 mA,CE,CB ,UK(IO.24P) WSAY0014101 B2050 TMU PC-Sync WSYY0239601 B2050P40FL-44-V101-234-30 APR 13 2005+1@ B2050 TMU S/W Color Remark - 130 - 12. EXPLODED VIEW && REPLACEMENT PART LIST 12.3 Accessory Note: This Chapter is used for reference, Part order is ordered by SBOM standard on GCSC Location Level No.