![Voxtel GSM ST11 Скачать руководство пользователя страница 24](http://html.mh-extra.com/html/voxtel/gsm-st11/gsm-st11_service-manual_1052078024.webp)
5.3 Receiver Trouble
5-3
Troubleshooting
YES
Check the receiver.
Replace U603,U604
which does not have
proper level.
A few hundreds
mV of AC signal levels
are measured?
NO
YES
Check the signal level at the U603,
U604 pin 5,6 after
putting audio signal.
Receiver is not working.
Connect the Phone to
Wireless Communication Test Set.
Check the signal level
at the EAR 600 Pin 2,3 after
putting audio signal in MIC.
A few hundreds
mV of AC signal levels
are measured?
Replace U501.
END
NO
Содержание GSM ST11
Страница 1: ...GSM PHONE SERVICE MANUAL MODEL ST11 ...
Страница 2: ...Rev 1 00 ...
Страница 6: ...1 2 Introduction Memo ...
Страница 15: ...3 4 Exploded View and Parts List 3 4 1 Exploded View 3 5 ...
Страница 41: ...Troubleshooting Memo 5 20 ...
Страница 42: ...6 Block Diagram 6 1 BB Block Diagram 6 1 ...
Страница 43: ...6 2 Block Diagram 6 2 RF Block Diagram ...
Страница 51: ...7 8 Schematic Diagram Memo ...
Страница 52: ...8 PCB Diagram 8 1 Main PCB 8 1 Top View ...
Страница 53: ...8 2 PCB Diagram Bottom View ...
Страница 60: ...9 7 Electrical Parts List Memo ...