Power Circuit - Sam4s ER-5200 Service Manual

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.
No.
1 VDISP (+30VDC)
2 VDRV (+24VDC)
3 VCC
4 VPRT
5 VPH
6 VBT
SAM4S ER-5200 Series
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POWER
TRANS
POWER PWB
VPRT(+8.5V)
VCC(+5.0V)
MAIN PWB
Figure 7-1 Power Block Diagram
Voltage
(+5VDC)
(+8.5VDC)
(+8.5VDC)
(+Min 3.6VDC)
Table 7-1 Power Source Voltage Descriptions
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Power
Rectification
Circuit #1
Power
Rectification
Circuit #1
Voltage
Regulation
Circuit #1
Voltage
Regulation
Circuit #2
TPH Supply Volt.
On/Off Circuit
Battery Volt.
Storage Circuit
Description
VFD Grid/Anode Driving Voltage
Cash Drawer Solenoid Driving / Fiscal Writing Voltage
Logic IC Driving / VFD Filament Voltage
Thermal Printer Step Motor, A/Cut Motor Driving Voltage
Thermal Printer Head Driving Voltage
Battery Voltage
VDISP(+30V)
[For VFD Display]
VDRV(+24V)
[For Drawer, Fiscal Volt.]
[Power Fail Source]
VCC(+5V)
[For Logic, VFD]
VPRT(+8.5V)
[For Printer LF Motor]
[For Auto Cut Motor]
[For Spool Motor]
[For VPH Source]
VPH(+8.5V)
[For TPH Voltage]
VBT(+Min 3.6.V)
[For Battery Voltage]
7-1