Sam4s ER-390 SERIES Service Manual page 81

13 Schematic Diagrams
SAM4S ER-390 SERIES
[ Schematics Sheet Content ]
1. Main PCB Schematics.
1) CPU Block (ER-390M) -------------------------------------------
2) CPU Block (ER-390/ER-390F) --------------------------------
3) Memory, RTC, Decoder Block ---------------------------------
4) Power Fail, Buzzer, Battery Block ----------------------------
5) Display, Spool, Drawer Block-----------------------------------
6) External In/Out, Serial I/F Block ------------------------------
7) Key Scan Block ---------------------------------------------------
8) Printer Block -------------------------------------------------------
9) Fiscal I/F Block ----------------------------------------------------
10) Power Block -------------------------------------------------------
2. Power Switch PCB Schematics. --------------------------------
3. Display PCB Schematics.
1) VFD Front Schematics(ER-390F) -----------------------------
2) VFD Rear Schematics(ER-390F) ------------------------------
3) VFD Rear Schematics(ER-390M) ------------------------------ 13-15
4. Fiscal PCB Schematics. -------------------------------------------
5. STM-210 Printer PCB Schematics. -----------------------------
6. Interface PCB Schematics. ---------------------------------------
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