LG KU580 Service Manual - Page 151
C. GSM RF Transceiver Check
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4. TROUBLE SHOOTING C. GSM RF Transceiver Check DCS/PCS Tx (C211) ➀' Vapc (R113) GSM Tx ➀ (R201) RF3000 (U200) Figure 4-43. GSM/DCS/PCS Transceiver (RF3000) Check GSM RF Transceiver Output power at ➀ GSM/DCS/PCS >5dBm Yes No Redownload SW See Next page to check Tx path LGE Internal Use Only - 152 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 152 -
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc.
All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
C. GSM RF Transceiver Check
DCS/PCS Tx
(C211)
GSM Tx
(R201)
(U200)
RF3000
Vapc
(R113)
➀
➀
'
Figure 4-43. GSM/DCS/PCS Transceiver (RF3000)
GSM/DCS/PCS
>5dBm
See Next page to check Tx path
Check GSM RF Transceiver
Output power at
No
Yes
Redownload SW
➀