Samsung SGH-A737 Service Manual page 62

Umts telephone

Hide thumbs Also See for SGH-A737:

Table of Contents

Flow Chart of Troubleshooting

9-2-7. PCS1900 Receiver

**If you check the tx chain,

Check the not only RF Device but also resistor, inductor and capacitor.

Continuous RX ON

RF Input : 698 CH

AMP : -50dBm

NORMAL CONDITION

Catch the channel ?

YES

Check L102 ≥ -55dBm ?

YES

F102 Check

Pin #8 ≥ -55dBm ?

YES

U104 Check

Pin#36,37 ≥ -

55dBm ?

YES

THE END

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Check antenna contact

Replace RFS100

F102 Resolder or Change

Check the path from F102

to U104

9-28

Table of Contents