- 75 -
4 . TROUBLE SHOOTING
Checking Flow
START
Does the SIM cards
supports 3V?
Voltage at pin1 of
J300 is 3V?
Change the SIM Card
And try again.
Does it work
Properly?
Change the SIM Card. Our Phone
supports only 3V SIM card
Voltage
at VSIM of U101
Is 3V?
Redownload SW.
Does it work
Properly?
Replace J300 or check
soldering of components
Change the main board
Change SIM Card
SIM Card will be detected
YES
NO
NO
NO
NO
NO
YES
YES
YES
YES
Содержание B2070
Страница 54: ... 53 4 TROUBLE SHOOTING 4 2 TX Trouble TEST POINT 13Mhz OSCILLATOR Mobile SW FEM TRANCEIVER LDO PAM ...
Страница 68: ... 67 4 TROUBLE SHOOTING TEST POINT 4 6 LCD Trouble ...
Страница 72: ... 71 4 TROUBLE SHOOTING TEST POINT 4 8 Speaker Trouble ...
Страница 79: ... 78 4 TROUBLE SHOOTING 4 11 KEY backlight Trouble TEST POINT ...
Страница 96: ...6 Press Start and Pover on the phone using JIG remote Power on Switch 1 5 DOWNLOAD AND CALIBRATION 95 ...
Страница 107: ... 106 8 PCB LAYOUT Figure 8 1 B2070 BOTTOM SIDE PCB LAYOUT ...
Страница 108: ... 107 8 PCB LAYOUT Figure 8 1 B2070 TOP SIDE PCB LAYOUT ...
Страница 109: ... 108 ...
Страница 117: ...10 STAND ALONE TEST 116 Figure 10 2 HW test setting Figure 10 3 Ramping profile ...
Страница 121: ... 120 ...
Страница 123: ... 122 ...