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5-14 DCS Transmit
5-23
Tx On (level : 0)
U602
Yes
Pin 8
No
U602
Yes
Pin 3
No
U609
Yes
Pin 4
No
U608
Pin 8
No
U610
Yes
Pin 5
C626, R611, R613, R614
No
U610
No
Pin 9 = 0.5~2.5 V
Yes
U612
At 1150~1185MHz,
No
Pin 10
At CH 1080MHz,
Pin 23
Yes
U605
No
Pin 17, 18, 19, 20
Yes
No
Check U605
Pin 35, Pin 38
Yes
Resolder
U501
Resolder
U600
Check
VC1 : H
VC2 : L
No
Resolder
U609, C611
Check
Yes
U608 : +VBATT
Pin 2 (APC)
OK?
No
Resolder or Change
Resolder
U610
Resolder
U605, U612
Resolder
OneC(U501)
Resolder
U605 (Pin35, 38)
Yes
Change or Resolder
U602
Check
Ant. S/W, Control Circuit
Yes
Resolder or Change
U608
Check +VBATT
or APC Control
Flow chart of trouble shooting
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