Service Manual
Page 45
... SEN NC 7 SCLK 3I 8 5 6 4 1 2 EUSY0280103 IP C634 39p IN CHECKING FLOW Check C634,C614. Yes No Replace U601 Redownload software and calibration again LGE Internal Use Only - 46 - Copyright © 2007 LG Electronics. Only for training and service purposes Inc. 4. Check if there is any Major difference Refer to graph 3 Graph 3 Similar?
... SEN NC 7 SCLK 3I 8 5 6 4 1 2 EUSY0280103 IP C634 39p IN CHECKING FLOW Check C634,C614. Yes No Replace U601 Redownload software and calibration again LGE Internal Use Only - 46 - Copyright © 2007 LG Electronics. Only for training and service purposes Inc. 4. Check if there is any Major difference Refer to graph 3 Graph 3 Similar?
Service Manual
Page 51
Inc. Yes No Replace U101 Redownload the Software And calibrate LGE Internal Use Only - 52 - Copyright © 2007 LG Electronics. All right reserved. Only for training and service purposes TROUBLE SHOOTING (4) Checking TX IQ TEST POINT Waveform C634 C614 Figure 10 Graph 7 CIRCUIT QN ...
Inc. Yes No Replace U101 Redownload the Software And calibrate LGE Internal Use Only - 52 - Copyright © 2007 LG Electronics. All right reserved. Only for training and service purposes TROUBLE SHOOTING (4) Checking TX IQ TEST POINT Waveform C634 C614 Figure 10 Graph 7 CIRCUIT QN ...
Service Manual
Page 53
... Flow START NO Check Battery Voltage > 3.35V YES Push power-on procedure is Completed. Replace the main board LGE Internal Use Only - 54 - Re-download software Does it work properly? All right reserved. THE PHONE WILL POWER ON. The problem may NO YES be elsewhere. Inc. 4. The power-on key NO... VABB=2.75V NO Logic level at KEYON of U101 = HIGH YES NO Does it work properly? Only for training and service purposes Copyright © 2007 LG Electronics.
... Flow START NO Check Battery Voltage > 3.35V YES Push power-on procedure is Completed. Replace the main board LGE Internal Use Only - 54 - Re-download software Does it work properly? All right reserved. THE PHONE WILL POWER ON. The problem may NO YES be elsewhere. Inc. 4. The power-on key NO... VABB=2.75V NO Logic level at KEYON of U101 = HIGH YES NO Does it work properly? Only for training and service purposes Copyright © 2007 LG Electronics.
Service Manual
Page 69
...CN300.8 Or change to echo mode NO Can you hear your voice from the earphone? Copyright © 2007 LG Electronics. YES Set the audio part of the phone NO change the earphone Re-download software Or check the soldering NO Voltage at U301.5 and U302.3 are high? Earphone will work well? Is... the level at NO U300.1 is low? Inc. YES Re-download software (DBB does not detect the earphone Change the earphone And try again NO Can you hear your voice from the earphone? All right reserved. Only...
...CN300.8 Or change to echo mode NO Can you hear your voice from the earphone? Copyright © 2007 LG Electronics. YES Set the audio part of the phone NO change the earphone Re-download software Or check the soldering NO Voltage at U301.5 and U302.3 are high? Earphone will work well? Is... the level at NO U300.1 is low? Inc. YES Re-download software (DBB does not detect the earphone Change the earphone And try again NO Can you hear your voice from the earphone? All right reserved. Only...
Service Manual
Page 108
... This is NOT a necessary menu to be used during the Manufacturing process. 2 Servicemen should be restored again. 9.7 S/W version This displays software version stored in data block. Reset [MENU 6] This Factory Reset menu is to format data block in the flash memory and this procedure set...value in the phone. Only for Speech Transcoder and Acoustic testing. 1) All calls : This displays total conversation time. Copyright © 2007 LG Electronics. Attention 1 Fact. Inc. LGE Internal Use Only All right reserved. User cannot reset this value. 2) Reset settings : This resets...
... This is NOT a necessary menu to be used during the Manufacturing process. 2 Servicemen should be restored again. 9.7 S/W version This displays software version stored in data block. Reset [MENU 6] This Factory Reset menu is to format data block in the flash memory and this procedure set...value in the phone. Only for Speech Transcoder and Acoustic testing. 1) All calls : This displays total conversation time. Copyright © 2007 LG Electronics. Attention 1 Fact. Inc. LGE Internal Use Only All right reserved. User cannot reset this value. 2) Reset settings : This resets...
Service Manual
Page 112
...Copyright © 2007 LG Electronics. LGE Internal Use Only Only for Software Installation) Type / Model HP-8960 HP-66311B HP-GPIB Pentium II class above 300MHz Table 11-1. AUTO CALIBRATION 11. GSM Test Set(8960) GPIB Cable Brand Agilent LG LG Agilent Agilent LG Mobile Switch Cable ...for Calibration Wireless Communication Test Set RS-232 Cable and Test JIG RF Cable Power Supply GPIO interface card Calibration & Final test software Test SIM Card PC (for training and service purposes - 113 - Auto-cal generates calibration data by communicating with Agilent 8960(...
...Copyright © 2007 LG Electronics. LGE Internal Use Only Only for Software Installation) Type / Model HP-8960 HP-66311B HP-GPIB Pentium II class above 300MHz Table 11-1. AUTO CALIBRATION 11. GSM Test Set(8960) GPIB Cable Brand Agilent LG LG Agilent Agilent LG Mobile Switch Cable ...for Calibration Wireless Communication Test Set RS-232 Cable and Test JIG RF Cable Power Supply GPIO interface card Calibration & Final test software Test SIM Card PC (for training and service purposes - 113 - Auto-cal generates calibration data by communicating with Agilent 8960(...