74
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Mobile S/W
Triplexer
DCN_Duplexer
RFT6150
VCTCXO
PCS PAM
PCS_Tx
SAW filter
Circuit Diagram
Circuit Diagram
1. Check
DC Power Supply circuit
2. Check
VCTCXO
Press ##5473784236368 + SEND key + 000000 in
Phone idle state.
→
Press 5 to enter FCC Test
→
Press 2 to enter PCS FCC mode
- Set channel to 600 and AGC to 360
→
Measure frequency domain waveform with Spectrum
analyser
→
Measure time domain waveform with Oscilloscope
Start
6. Check
PCS Duplexer
Redownload S/W, Cal
NO
7. Check
Triplexer
8. Check
Mobile Switch
3. Check
RFT6150
5. Check
PCS PAM
4. Check
PCS RF SAW
Z3X-BOX.COM
Summary of Contents for VX8350
Page 132: ...1 Assembly and Disassembly Diagram Z 3 X B O X C O M 131 ...
Page 133: ...Z 3 X B O X C O M Internal Use Only 132 ...
Page 134: ...Z 3 X B O X C O M Internal Use Only 133 ...
Page 135: ...2 Block and Circuit Diagram Z 3 X B O X C O M 134 ...
Page 149: ...3 Part List Z 3 X B O X C O M 148 ...
Page 160: ...4 Components Layout Z 3 X B O X C O M 159 ...
Page 164: ...F100 F101 F102 cam3 cam4 CON100 CON102 Z 3 X B O X C O M Internal Use Only 163 ...
Page 165: ...CON2 Z 3 X B O X C O M Internal Use Only 164 ...
Page 167: ...CON103 Z 3 X B O X C O M Internal Use Only 166 ...
Page 168: ...VX8350 CAM_REV1 0 SPKY 0047501 SW100 CON102 Z 3 X B O X C O M Internal Use Only 167 ...
Page 169: ...CON103 Z 3 X B O X C O M Internal Use Only 168 ...