Samsung SGH-T429 Bedienungsanleitung PDF herunterladen (Seite 55)

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Flow Chart of Troubleshooting

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9-23

9-14. DCS Receiver

Check F100

pin10,pin12 = L

Check UCP200

Yes

Resolder U101

Check & Resolder

U101, RF PSU Part

U101 pin12,13,28,29

>=2.8V

Resolder C108, C109, L110

Resolder F100

Check ANT Switch

control circuit

F100 pin3

>= -70dBm

U101 pin 4,5,6,7

>= 1V

F100 Pin3

>= -68dBm

RX ON

RF input : CH center freq : +67.7kHz

Amp : -50dBm

Yes

END

Resolder CN100,C104

F100 Pin7

>= -65dBm

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Samsung SGH-T429 Bedienungsanleitung Seite 55