
TABLE OF CONTENTS
CHAPTER 1 – GENERAL OVERVIEW ................................................................................................................................ 1-1
MAJOR FEATURES............................................................................................................................................................... 1-1
GENERAL CHARACTERISTICS...........................................................................................................................................1-2
EXTERNAL VIEW.................................................................................................................................................................. 1-3
SAFETY PRECAUTIONS ......................................................................................................................................................1-4
MAINTAINING THE CASH REGISTER...............................................................................................................................1-4
CASH REGISTER UNPACKING AND SETUP ................................................................................................................... 1-5
PRINTER COMPARTMENT.................................................................................................................................................. 1-5
CHAPTER 2 –PRELIMINARY OPERATIONS..................................................................................................................... 2-1
INSERTING THE BATTERIES ..............................................................................................................................................2-1
INSERTING RECEIPT ROLL .................................................................................................................................................2-3
CHAPTER 3 – KEYPAD LAYOUT ........................................................................................................................................ 3-1
ECR 7190 – 7790 – 7790LD LAYOUT................................................................................................................................. 3-1
CHAPTER 4 – TROUBLESHOOTING..................................................................................................................................4-1
DIAGNOSTICS TEST.............................................................................................................................................................4-1
CHECKING THE SOFTWARE VERSION ...........................................................................................................................4-2
CHAPTER 5 - PART DISASSEMBLY...................................................................................................................................5-1
OPENING AND DISASSEMBLING THE CASH REGISTER.............................................................................................5-1
TRANSFORMER ....................................................................................................................................................................5-3
KEYPAD UNIT........................................................................................................................................................................5-4
DISPLAY UNIT.......................................................................................................................................................................5-5
PRINTER UNIT.......................................................................................................................................................................5-6
Y119070-7 Service Manual v