5.2.9 TX POWER Trouble(E-GSM)
- 30 -
START
✔
HP8960 : Test mode
62CH, 7level setting ( TCH )
62CH, -60dBm setting ( BCCH )
✔
Spectrum analyzer setting
✔
Oscilloscope setting
✔
U212 soldering check
✔
U212 pin 4 DC 2.8V + - 5% check
✔
U212 pin 3 DC 1.4V + - 0.1V check
✔
U212 change another same one
✔
U203 Pin soldering check
✔
Ulysse-Nausica check
✔
S/W check
✔
U209 soldering check
✔
U209 change another same one
✔
U210 soldering check
✔
U210 pin 4 DC 2.8V check
✔
U210 pin 6 control signal check
( >= 0.7Vp-p )
✔
U210 pin 1 Low Voltage check
✔
U210 change another same one
VC-TCXO
U212 pin 3 13MHz
Oscillation check
Frequency = 13.00MHz &
Power >= -5dBm
RF MAINCHIP
U203 pin 9,10,11,12
I/Q Signal check
I/Q Signal >= DC 1.35V
& 0.5Vp-p
LO1 VCO
U210 pin 3
Frequency & Power check
Frequency = 1326.4 MHz &
Power >= -15dBm
Balun
U209 pin 3
Frequency & Power check
Frequency = 1326.4MHz &
Power >= -15dBm
NO
NO
NO
NO
YES
YES
YES
Содержание LG-600
Страница 1: ...GSM Phone SERVICE MANUAL MODEL LG 600 SERVICE MANUAL MODEL LG 600 ...
Страница 2: ......
Страница 42: ... 40 6 PCB Diagram Testpoint Description LG 600 KEY BOARD LAYER 1 ...
Страница 43: ...6 PCB Diagram Testpoint Description 41 LG 600 KEY BOARD LAYER 4 ...
Страница 44: ... 42 LG 600 MAIN BOARD LAYER 1 ...
Страница 45: ... 43 6 PCB Diagram Testpoint Description LG 600 MAIN BOARD LAYER 8 ...
Страница 46: ... 44 ...
Страница 47: ... 45 7 Block Diagram 7 Block Diagram 7 1 BB Block Diagram ...
Страница 48: ... 46 7 2 RF Block Diagram ...
Страница 49: ... 47 8 Schematic Diagram 8 Schematic Diagram 8 1 Key Pad LCD Interface Earphone ...
Страница 50: ... 48 8 2 Main Board 8 2 1 Baseband Ulysse Omega ...
Страница 51: ... 49 8 Schematic Diagram 8 2 2 Memory Devices ...
Страница 52: ... 50 8 2 3 Audio Peripheral Circuit ...
Страница 53: ... 51 8 Schematic Diagram 8 2 4 I O B to B Connector Interface ...
Страница 54: ... 52 8 3 RF Top Schematic 8 3 1 RF Front End ...
Страница 55: ... 53 8 Schematic Diagram 8 3 2 RF Main ...
Страница 56: ... 54 ...
Страница 72: ... 70 ...