SAM4S ER-380M/F SERIES
7-1
7 Special Circuit Descriptions
7-1 Power Circuit
This system is operated under 120Vac or 230Vac. All data is saved by the Battery when the Main power is turned off.
The power circuit supplies the five different DC voltage sources and one AC voltage source.
Figure 7-1 Power Block Diagram
No. Voltage
Description
1
VDISP (+30VDC)
VFD Grid/Anode Driving Voltage
2
VDRV (+24VDC)
Cash Drawer Solenoid Driving / Fiscal Writing Voltage
3
VCC
(+5VDC)
Logic IC Driving / VFD Filament Voltage
4
VPRT (+8.5VDC)
Thermal Printer Step Motor.
5
VPH (+8.5VDC)
Thermal Printer Head Driving Voltage
6
VBT
(+Min 3.6VDC)
Battery Voltage
Table 7-1 Power Source Voltage Descriptions
POWER
TRANS
Power
Rectification
Circuit #1
VDISP(+30V)
VDRV(+24V)
Power
Rectification
Circuit #2
[For Drawer, Fiscal Volt.]
[Power Fail Source]
[For VFD Display]
Voltage
Regulation
Circuit #2
VPRT(+8.5V)
[For Printer LF Motor]
[For Spool Motor]
[For VPH Source]
Voltage
Regulation
Circuit #1
VCC(+5V)
[For Logic, VFD]
TPH Supply Volt.
On/Off Circuit
VPRT(+8.5V)
VPH(+8.5V)
[For TPH Voltage]
Battery Volt.
Storage Circuit
VCC(+5.0V)
VBT(+Min 3.6.V)
[For Battery Voltage]
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 ...