Checking Wcdma Block - LG AT&T GR500 Service Manual

4.21 Checking WCDMA Block

start
1. Check
VCXO Block
2. Check
Front End Module
3. Check
Control Signal
4. Check
RF TX Level
5. Check
PAM Block
6. Check
RF RX Level
Re-download SW, Cal
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Only for training and service purposes
DCDC U101
WCDMA
PAM
Figure 4-12. WCDMA Block
- 135 -
4. TROUBLE SHOOTING
U103
GSM/WCDMA
Transceiver
(RF3300)
SW200
RF switch
Duplexer
LGE Internal Use Only