CAS ERII-15, Service Manual

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ER-II
Service Manual Service Manual Service Manual Service Manual
2 7/4/2007
< Table of Contents >
1. Introduction
............................................................................................................................... 4
1.1. Preface
.................................................................................................................................... 4
1.2. Precaution
............................................................................................................................. 4
1.3. Specifications
...................................................................................................................... 5
1.4. Dimension
.............................................................................................................................. 6
1.5. Key & SYMBOLS ON DISPLAY
.................................................................................... 7
1.6. SealingMethod
.................................................................................................................... 8
2. Calibration
................................................................................................................................. 10
2.1. General Calibration
........................................................................................................ 10
2.1.1. C4 Setting
........................................................................................................... 11
2.1.1.1. C4-1 Setting ................................................................. 11
2.1.1.2. C4-2 Setting ................................................................. 11
2.1.1.3. C4-3 Setting ................................................................. 11
2.1.1.4. C4-4 Setting ................................................................. 12
2.1.1.5. C4-5 Setting ................................................................. 12
2.1.2. SPAN Calibration Setting (C-3)
.............................................................. 13
2.1.3. Gravity Constant Value Setting (C-9)
................................................ 13
2.1.4. Calibration factor Setting (C-10)
.......................................................... 14
2.1.5. Displaying Real A/D Value (C-5)
.......................................................... 14
2.1.6. Input Function Key Code (C-6)
.............................................................. 15
2.1.7. Percent Calibration (C-7)
.......................................................................... 16
2.1.8. Battery Calibration (C-8)
........................................................................... 16
3. The Schematics and Diagram
......................................................................................... 18
3.1. System Block Diagram
................................................................................................. 18
3.1.1. Main
........................................................................................................................ 19
3.1.2. Power Part & Back_Light
........................................................................... 20
3.1.3. Key Part
............................................................................................................... 21
3.1.4. Display Driver(Main PCB) & REAR Display
...................................... 22
4. Exploded View Load Cell drawing
............................................................................... 23
4. Load Cell drawing
.................................................................................................................. 24
5. Part Location
............................................................................................................................ 25
5.1. Main PCB (Top)
................................................................................................................ 25
5.2. Main PCB (Bottom)
........................................................................................................ 26
5.3. Rear Display PCB (Top)
............................................................................................... 27