LG LG9200 Service Manual page 26

Tx / Rx Part Description(3)
1. Tx/Rx Part component Description
➂ RF Main Chip (TRF6151C)
U504
_S_EN
(9pin)
PDNB S_DATA
S_CLK
(5pin)
(3pin)
(7pin)
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3. Technical Brief
• PDNB, _S_EN, S_CLK, S_DATA
- From DBB Main Chip Set
- Contains information all about ARFCN,
voice data, user information etc.
- RF Chips operate according to these
signals