8 Troubleshooting
SAM4S ER-380M/F SERIES
8-9
8-7 RS-232C Serial Communication Problem
End
RS-232C Problem
Loop Back
Failure?
Y
N
1. Perform the “SELF TEST” in the S-MODE using the Loop
Back test Connector.
2. Check the connection of the RS-232C Connector and Loop
Back Connector.
3. Check the TXD,RXD Pin on CPU.
4. Check the MAX232 Driving Chip and related Circuit on
I/F PBA.
Communication
Failure?
1. Check the connection of the RS-232C and Other side.
2. Check the I/F Cable whether it is open or short.
3. Check whether Signal is affected by the Cable Noise.
N
H/W Handshake
Ok?
Y
Y
1. Check the connection of the H/W handshaking Line and Other
side
2. Check the I/F Cable whether it is open or short.
3. Confirm the H/W handshaking Protocol.
N
Summary of Contents for ER-380F
Page 2: ......
Page 19: ...2 Product Specifications 2 12 SAM4S ER 380M F SERIES MEMO ...
Page 31: ...5 Maintenance and Adjustment 5 2 SAM4S ER 380M F SERIES MEMO ...
Page 39: ...6 Reference Information 6 8 SAM4S ER 380M F SERIES MEMO ...
Page 51: ...8 Troubleshooting 8 4 SAM4S ER 380M F SERIES ...
Page 54: ...8 Troubleshooting SAM4S ER 380M F SERIES 8 7 ...
Page 57: ...8 Troubleshooting 8 10 SAM4S ER 380M F SERIES MEMO ...
Page 73: ...9 Exploded Views and Parts List 9 16 SAM4S ER 380M F SERIES MEMO ...
Page 85: ...10 PCB Layout and Parts List 10 12 SAM4S ER 380M F SERIES MEMO ...
Page 89: ...12 Wiring Diagram 12 2 SAM4S ER 380M F SERIES MEMO ...
Page 105: ...13 16 SAM4S ER 380M F SERIES ...
Page 107: ...13 18 SAM4S ER 380M F SERIES MEMO ...
Page 109: ......
Page 110: ...ⓒ Shin Heung Precision March 2004 Printed in KOREA V1 0 Code No JK68 60955A ...