CODE : 00ZqCONTENTSParts marked with "!" are important for maintaining the safety of the unit. Be sure to replace these parts with specifiedones for maintaining the safety and performance of the unit.SHARP CORPORATIONThis document has been published to be usedfor after sales service only.The contents are subject to change without notice.SERVICE MANUALUP3301USMEPOS TERMINALMODEL UP-3301(For “U & A” version)CHAPTER 1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1CHAPTER 2. OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7CHAPTER 3. SERVICE PRECAUTION . . . . . . . . . . . . . . . . . . . . . . . 9CHAPTER 4. PROGRAM RESET AND SRV MODE . . . . . . . . . . . . 16CHAPTER 5. MASTER RESET (ALL MEMORY CLEAR) . . . . . . . . 17CHAPTER 6. DIAGNOSTICS SPECIFICATIONS . . . . . . . . . . . . . . 20CHAPTER 7. CIRCUIT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . 31CHAPTER 8. CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . 60CHAPTER 9. PWB LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86PARTS GUIDE