Casio LX-551AQ Manuals

Manuals and User Guides for Casio LX-551AQ. We have 1 Casio LX-551AQ manual available for free PDF download: Service Manual & Parts List

Casio LX-551AQ Service Manual & Parts List

Casio LX-551AQ Service Manual & Parts List (37 pages)

Brand: Casio | Category: Calculator | Size: 0.66 MB

Table of Contents

1 Schematic Diagram

2
- Table of Contents
  2
- Main Pcb
  2
- Key Matrix 1
  4
- Key Matrix 2
  4
2 Specifications

6
- General
  6
- Function
  6
- Storage Capacitiy
  10
3 General Guide

11
- Outward
  11
- About Data Errors
  11
- About the Memory Overflow Message
  11
- Mesage Table
  12
- To Adjust the Display Contrast
  12
- To Select a Mode
  13
- To Check the Memory Status
  13
- To Use the FUNCTION Key
  13
- To Switch the Key Input and Alarm Tones on and off
  14
- To Select the System Language
  14
4 Replacing the Batteries

15
5 Resetting the Unit

16
6 Saving Data

17
7 Lsi Pin Functions

21
- Cpu:lsi1
  21
- Ram:lsi2 and Lsi3 (Cxk58257)
  22
- ROM:LSI4 ( Μ PD23C1001EAGZ)
  23
- Voltage Regulator:reg1 (S-81253)
  24
- Voltage Detector:det1 (Rh5Vl46Ca)
  24
8 Troubleshooting

25
9 Diagnostics

28
10 Assembly View

34
11 Parts List

35

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