Sam4s ER-420F - Schematic Diagrams

SAM4S ER-420M/F SERIES 11-1
11 Schematic Diagrams
[ Schematics Sheet Content ]
1. Main PCB Schematics.
1) CPU Block ---------------------------------------------------------- 11-2
2) Memory, RTC, Decoder Block --------------------------------- 11-3
3) Power Fail, Buzzer, Display Block ---------------------------- 11-4
4) External In/Out, Serial I/F Block ------------------------------ 11-5
5) Key Scan Block --------------------------------------------------- 11-6
6) Printer Block ------------------------------------------------------- 11-7
7) Fiscal I/F Block ---------------------------------------------------- 11-8
8) Power Block -------------------------------------------------------- 11-9
2. Power Switch PCB Schematics. -------------------------------- 11-10
3. Display PCB Schematics.
1) VFD Front Schematics(ER-420F) ----------------------------- 11-11
2) VFD Rear Schematics(ER-420F) ------------------------------ 11-12
3) VFD Rear Schematics(ER-420M)------------------------------ 11-13
4. Fiscal PCB Schematics. ------------------------------------------- 11-14
5. STM-320 Printer PCB Schematics. ----------------------------- 11-15
6. Serial Interface PCB Schematics.-------------------------------- 11-16