4. TROUBLE SHOOTING
- 50 -
F. Folder On/Off and Trouble Shooting
• Folder Operation(ON/OFF)
- There is a magnet to detect the folder status, opened or closed.
- If a magnet is close to the hall-effect switch(U101) the voltage at pin 1 of U101 goes to 0V.
Otherwise, 2.8V
- This Folder signal is delivered to DBB, and the status of folder is reported.
• Folder Trouble (On/Off)
No
Yes
Yes
Yes
START
The all paths
connected to U101
The V_IO is 2.8V?
The DBB(Calypso) is broken.
Change the board.
Resolder
the C102, R103
No
Refer to Power On
Trouble.
No
Replace the U101.
U101 is broken.
Folder1 signal is low
on magnetizing into
Summary of Contents for MG810c
Page 1: ...Date May 2006 Issue 1 0 Service Manual MG810c MG810d Service Manual Model MG810c MG810d ...
Page 3: ... 2 ...
Page 5: ......
Page 46: ...4 TROUBLE SHOOTING 45 WR CS ADSSSSS CS ADSSSSS WR ...
Page 52: ...4 TROUBLE SHOOTING 51 G 1 Speaker Receiver Trouble Shooting Common Path ...
Page 53: ...4 TROUBLE SHOOTING 52 G 2 Speaker Receiver Trouble Shooting Acoustic Path ...
Page 54: ...4 TROUBLE SHOOTING 53 G 3 Speaker Receiver Trouble Shooting MP3 AAC Path ...
Page 55: ...4 TROUBLE SHOOTING 54 G 4 Speaker Receiver Trouble Shooting FM Radio Path ...
Page 56: ...4 TROUBLE SHOOTING 55 G 5 Main Mic Path Trouble Shooting ...
Page 57: ...4 TROUBLE SHOOTING 56 G 6 Ear Mic Receiver Path Trouble Shooting ...
Page 58: ...4 TROUBLE SHOOTING 57 G 7 Ear Mic Mic Path Trouble Shooting ...
Page 59: ...4 TROUBLE SHOOTING 58 G 8 Vibrator Trouble Shooting ...
Page 60: ...4 TROUBLE SHOOTING 59 4 2 RF Part Troubleshooting A RF Receiving Path Trouble Shooting ...
Page 64: ...4 TROUBLE SHOOTING 63 E RF Receiving Path Trouble Shooting FEM 1 ...
Page 65: ...4 TROUBLE SHOOTING 64 F RF Receiving Path Trouble Shooting FEM 2 ...
Page 67: ...4 TROUBLE SHOOTING 66 H RF Transmitter Path Trouble Shooting ...
Page 73: ...4 TROUBLE SHOOTING 72 N RF Transmitter Path Trouble Shooting FEM 1 ...
Page 74: ...4 TROUBLE SHOOTING 73 O RF Transmitter Path Trouble Shooting FEM 2 ...
Page 84: ...6 Block Diagram 83 6 Block Diagram ...
Page 85: ... 84 ...
Page 96: ... 95 8 PCB LAYOUT ...
Page 97: ... 96 8 PCB LAYOUT ...
Page 98: ... 97 8 PCB LAYOUT ...
Page 99: ... 98 8 PCB LAYOUT ...
Page 100: ... 99 8 PCB LAYOUT ...
Page 101: ... 100 8 PCB LAYOUT ...
Page 111: ... 110 ...
Page 113: ... 112 ...
Page 133: ...Note ...
Page 134: ...Note ...