8 Troubleshooting
SAM4S ER-380M/F SERIES
8-3
8-3 VFD Display Problem
End
VFD Problem
Control Signal
Ok?
Y
N
1. Check the CLK Signal (CPU P9.5) (Approx. 1MHz)
2. Check the DATA Signal (CPU P9.6)
3. Check the LATCH Signal (CPU P9.7)
4. Check the Harness.
Disconnect
Ok?
Power VDISP,
VCC Ok?
Y
1. Refer to the Power Problem.
2. Check the Harness.
1. Check the Harness.
2. Check the VFD Disconnection Signal Pattern.
N
VFD PBA
Assy Ok?
Y
1. Check and Replace the VFD PBA.
2. Check the UCL5812.
3. Check the VFD.
4. Check the Harness & Soldering Point.
N
Y
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 ...