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ElectronicsPete
ElectronicsPete, Engineer
Category: Office Equipment
Satisfied Customers: 16889
Experience:  Electronic Engineer
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Sharp er-a330 cash register locked up

Customer Question

Sharp er-a330 cash register locked up
Submitted: 9 months ago.
Category: Office Equipment
Expert:  ElectronicsPete replied 9 months ago.

Hi there,

What symptoms are you having?

(e.g. error codes, beeps, etc)

Customer: replied 9 months ago.
Beeps. An L on the screen, won't let me do anything.
Expert:  ElectronicsPete replied 9 months ago.

The 'L means that the battery backup is low.

Is the power supply connected?

Customer: replied 9 months ago.
it is.
Expert:  ElectronicsPete replied 9 months ago.

Ok, you will need to replace the backup battery and also check the mains power supply.

Expert:  ElectronicsPete replied 9 months ago.

After replacing the battery you will need to restart the cash register:

Turn the machine OFF, by unplugging it from the power source.
Leave it off for 10 minutes.
Plug it back in.
Turn it on. Wait for it to initialize.
Try using it again.

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Otherwise please reply back if you need further assistance.
Pete.
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Customer: replied 9 months ago.
Where is the battery's I can not remember
Expert:  ElectronicsPete replied 9 months ago.

For memory back up, 3 x ULM-3 batteries are needed.

When the low battery symbol "L" lights up, batteries (3 pieces) exchange by the following method:

1) Power on the cash register.

2) Turn the MODE SW to "OP X/Z" mode.

3) Remove the OLD dry batteries (3 pieces).

4) Insert the NEW dry batteries (3 pieces).

5) Confirm the low battery symbol "L" lights off.

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One moment please and I will get a battery diagram for you...

Expert:  ElectronicsPete replied 9 months ago.

Page 4 of the installation manual shows how to disassemble the cash register and access the battery compartment:

https://www.manualowl.com/m/Sharp/ER-A330/Manual/265450

Customer: replied 9 months ago.
I replaced the battery and reset it. The L is gone but it still will not do anything
Expert:  ElectronicsPete replied 9 months ago.

How long was it displaying the L for?

Was there a recent power outage or thunderstorm?

Expert:  ElectronicsPete replied 9 months ago.

Hi, just checking in on your question, do you need any further assistance?