Citizen CTB-300 - Page 3

CTB serial bench scale service manual
III
SECTION14 CHANGE PARTS PROCESS…………………………………………...21
14.1 Replace main board……………………………………………………….……....21
14.2 Replace load cell……………………………………………………..……………21
14.3 Replace MPU…………………………………………….………………………...22
14.4 Replace battery………………………………………………….…………………22
SECTION15APPENDIX…………………….………………………………………..…23
15.1 Schematic (main)…………………………………………………………….….…23
15.2 Schematic (display)………………………………………..………….……..……24
15.3 Parts drawing…………………………………………….…………..…….……...25
15.4 Parts list…………………………………………………….……………….……...26
15.5 Error codes…………………………………………………………………………27
15.6 Numeric and alphabetic characters displayed on LCD……………….……….27