4. TROUBLE SHOOTING
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4.9.1. Receiver Trouble
START
No
Yes
ABB is out of order.
Change the board.
SPK_PHN_EN signal is low?
No
Re_solder the U201.
Otherwise change it.
Yes
No
Re_solder the cable
Does sine wave appear
atR823,R824?
Soldering between
cable and board is OK?
Cables of receiver
are OK?
Change the receiver
No Trouble
No
Yes
Yes
Set audio part at test equipment as PRBS
or continuous wave, not echo. Set the
audio volume max.
Connection between
FPCB and CN800 is OK?
No
Reconnect FPCB
to CN800
Yes
Z3X-BOX.COM
Содержание MG220
Страница 1: ...Date May 2006 Issue 1 0 Service Manual MG220 Service Manual Model MG220 Z 3 X B O X C O M ...
Страница 3: ... 2 Z 3 X B O X C O M ...
Страница 5: ...Z 3 X B O X C O M ...
Страница 32: ...3 H W Circuit Description 31 Figure 14 Power Supply Scheme Z 3 X B O X C O M ...
Страница 46: ...4 TROUBLE SHOOTING 45 4 TROUBLE SHOOTING 4 1 Main Components Placement Z 3 X B O X C O M ...
Страница 91: ...5 DOWNLOAD 90 5 2 Download Procedure 5 2 1 Computer Program file MultiGSM EXE Click Z 3 X B O X C O M ...
Страница 93: ...5 DOWNLOAD 92 5 2 3 Configuration Setting C GSMULTI Model MG220 dll Z 3 X B O X C O M ...
Страница 94: ...5 DOWNLOAD 93 5 2 4 Press Start Button Z 3 X B O X C O M ...
Страница 95: ...5 DOWNLOAD 94 5 2 5 After Start Button Which Stand by condition Z 3 X B O X C O M ...
Страница 96: ...5 DOWNLOAD 95 5 2 6 SW downloading Condition MG220 Z 3 X B O X C O M ...
Страница 97: ...5 DOWNLOAD 96 5 2 7 SW downloading END Condition Z 3 X B O X C O M ...
Страница 99: ...6 SERVICE AND CALIBRATION 98 4 Click on CALIBRATION START button Z 3 X B O X C O M ...
Страница 108: ... 107 8 pcb layout Z 3 X B O X C O M ...
Страница 109: ... 108 8 pcb layout Z 3 X B O X C O M ...
Страница 113: ... 112 Z 3 X B O X C O M ...
Страница 129: ...Note Z 3 X B O X C O M ...
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