Table of Contents
Advertisement
5-15 DCS Transmit
Tx On (level : 0)
5-22
U706
Yes
Pin 8
°√ 25 dBm
No
U706
Yes
Pin 3
°√ 25 dBm
No
U707
Yes
Pin 5
°√ 25 dBm
No
U707
Yes
Pin 8
°√ 0 dBm
No
U602
Yes
Pin 5
C641, R703, R704, R705, C706
°√ 10 dBm
No
U602
No
Pin 3 °¬ 2.5 V
U400, U502, U503
Pin 5 °√ 2.8 V
Pin 3 = 0.5~2.5 V
Yes
U601
No
pin 30, 47
°√ -10 dBm
Yes
U601
No
Pin 17, 18, 19, 20
°√ 40 mV
Yes
Check U601
No
Pin 38, Pin 35
U601 (Pin35, Pin38)
°√ 2.5 V
Yes
Resolder
U400
Resolder
U708
Check
VC1 : H
VC2 : L
No
Resolder
U702, L706
Check
U707 : +VBATT
Pin 2 (APC)
OK?
No
Resolder or Change
Resolder
U504, U602
Resolder U501
Resolder
OneC(U400)
Resolder
Flow chart of Troubleshooting and Circuit Diagram
Yes
Change or Resolder
U706
Check
Ant. S/W, Control Circuit
Yes
Resolder or Change
U707
Check +VBATT
or APC Control
Advertisement
Table of Contents
