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Flow Chart of Troubleshooting
3-21
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3-7-4. DCS Transmitter
Tx ON
(Level : 0)
battery voltage : 3.8V
YES
NO
VCO800 Check
Pin #5
≒
6dBm ?
PAM702 Check
Pin #15
≥
27dBm ?
U701 Check
Pin#6
≥
27dBm?
Check the U700
VCO800 Resolder
VCO800 Resolder or Change or
Check the path of VCO800 & PAM702
THE END
NO
NO
YES
YES
YES
Check the U701
U701 Check
Pin #20
≥
27dBm?
U701 Resolder or Change or
Check the path of U701 & PAM702
NO
YES
NO
U700 Check
Pin#40
≤
2.3V ?