Chapter 4. Trouble Shooting - LG VX8560 Service Manual

VX8560
4.1 Rx Part Trouble
4.1.1 DCN Rx
Rx TEST SETUP (HHP)
- Tes t Channel: 384
- Tes t Band : US Cell ular
- SID: 2004
- Sect or Power: - 30 dB m Spec trum An alyzer Setting
Os c illos c op e Setting
1. Check
DC Power Supply circuit
2. Check
VCTCXO
LG Electronics Inc.

CHAPTER 4. Trouble Shooting

CHAPTER 4. Trouble Shooting
Quintplexer
Mobile S/W
Start
Test Point
Test Point
VCTCXO
QSC6075
Check flow
Check flow
3. Check
RF Signal path
Redownload S/W, Cal
48/235