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brittany91Aug 5, 2025
What to do if my Casio Calculator has no print?
- SSteven DavisAug 5, 2025
If your Casio Calculator isn't printing, a possible cause is poor voltage VM. Ensure that VM=11V while printing.
What to do if my Casio Calculator has no print?
If your Casio Calculator isn't printing, a possible cause is poor voltage VM. Ensure that VM=11V while printing.
How to fix a Casio Calculator that does not work at all?
If your Casio Calculator isn't working at all, it could be due to a defective power transformer. Check the secondary voltage of the transformer. Alternatively, a defective LSI could be the culprit, in which case you should check the waveforms of each pin.
What to do if my Casio DL-270B has poor printing or missing digits?
If your Casio Calculator is experiencing poor printing, the motor isn't stopping, or digits are missing, the timing signal might be bad. Check the detector of the printer block and the timing signal. Another potential cause is a defective printer magnet.
What to do if my Casio DL-270B Calculator has no display?
If your Casio Calculator displays nothing, the issue could stem from several causes. First, check for voltage at VF1 and VF2. Second, inspect the pulse signals from the LSI to ensure there's a digit or segment signal. Finally, if VF1, VF2, digit, and segment signals are all okay, the display tube itself may be defective.
Why is my Casio DL-270B Calculator display poor?
If your Casio Calculator is producing a poor display, it could be due to a defective LSI. Alternatively, there might be short or open circuits between the digit and segment signals between the LSI and display tube. A defective display tube could also be the cause.
Detailed schematic of the main electronic board for the calculator.
Diagram illustrating the calculator's key matrix and connections.
List of electronic components and their specifications for the calculator.
List of other parts such as cases, cords, and rolls.
General| Display Type | LCD |
|---|---|
| Power Source | Battery |
| Type | Basic |
| Battery Type | LR44 |
| Key Features | Sign Change |
| Number of Digits | 8 digits |
