Transmitter Section - Samsung SCH-E159 Service Manual

SCH-E159 Flow Chart of Troubleshooting and Circuit Diagrams

2-3. Transmitter section

Abnormal transmitter
operation
No
No
Check U104
No Yes Check
Check TCXO
RF OUT
UHF_LO_BUFF
OK?
Level OK?
On U104 PIN15 OK?
Yes
Check
PA(U102)
Output Level OK?
2-14