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