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I accidentally touched two keys at the same time, now have
I accidentally touched two keys at the same time, now have the E and I can't seem to be able to clear it. It is the * and + keys. … read more
Russell H.
Russell H.
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Vocational, Technical or Trade Scho
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I have a Casio MX-12V calculator. Tonight worked perfect,
I have a Casio MX-12V calculator. Tonight worked perfect, today the "on" red key is not responding and calculator is completely dead. Tried putting it in direct sunlight, nothing. Presing other keys a… read more
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Andrew Taylor
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Greg! Yep, need your help. I need reset or clear out my
Hi Greg! Yep, need your help. I need reset or clear out my calculator. Is this possible? Canon p170-dh 12 digit … read more
Harry
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I'm trying to figure out how to use calculator my mom bought
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My Canon P170-DH will not accept new tape. I have an adding
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I have a canon mp18d that wont add. I can type in numbers
i have a canon mp18d that wont add. I can type in numbers but it wont allow me to add anything. It needs to be reset … read more
Pete
Pete
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Bachelor's Degree
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I have a canon printer/calculator. its memory is on, I can't
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Russell H.
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I have a canon calculator CP12130 and the numbers do not add
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Russell H.
Russell H.
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I don't understand the symbols [asterisks, diamonds] ai can'
I don't understand the symbols [asterisks, diamonds] ai can't make my mp11dx add, subtract, divide etc. aaais a more basic operating manual avaiable?… read more
Russell H.
Russell H.
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I have an old Panasonic calculator (model JL1603U) that operated
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How do I change the date and time on a P170-DH Calculator.
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Steve G.
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In the wrong Category - Need help with portable CALCULATOR!
On my Canon Calculator P23-DH V. When I try to add two or more figures by entering a number and pressing the + key, then the = key, nothing prints out...unless I first hit the x key, then 1, then =. T… read more
Expert
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I have a new Canon P27DH calculator. I plugged it in - typed
I have a new Canon P27DH calculator. I plugged it in - typed in a number, put it on print and one digit showed up and it stopped / got an error message and when I searched the instructions read how to… read more
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Russell H.
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I recently bought a Canon P170-DH calculator from office Depot.
I recently bought a Canon P170-DH calculator from office Depot. It worked great for a few days and then it quit - no power. I have checked all connections and they are OK. Office Depot has closed the … read more
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I just pulled my HP 32S RPN Scientific Calculator out of the
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Russell H.
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Hi I have a collectors item: Braun ET55 calculator Type 4835.
Hi I have a collector's item: Braun ET55 calculator Type 4835. Until recently, it worked fine but today I discovered various buttons no longer work. They are: decimal point, plus, minus, M+, M- and MR… read more
Russell H.
Russell H.
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Hi: we have asharp El-531x calculator. The function DEG
Hi: we have asharp El-531x calculator. The function DEG is at the top. How do I clear it. I am trying to add mixed fractions and the abc function does not seem to work. It keeps showing up as r. Thank… read more
Russell H.
Russell H.
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I have a TI-84 Plus. Two years ago i needed it for a trig class
I have a TI-84 Plus. Two years ago i needed it for a trig class after a year or so of non-use, and it gave error messages about the OS so I tried to repair it, to no avail. I need it this year for sta… read more
Martin
Martin
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Meet the Experts:

Steve G.

Steve G.

Engineer

2,413 satisfied customers

VP of electronic repair company. Audio nut since 1974. Home Theater advisor. Vinyl holdout!

John

John

Engineer and electronic enthusiast for more than 12 years.

335 satisfied customers

I am here to help you!

Russell H.

Russell H.

Service Tech

7,254 satisfied customers

8+ years of professional experience

Louie

Louie

Technician

4,854 satisfied customers

25+ yrs. experience in the field and 5+ yrs. online, down to component level.

Greg A.

Greg A.

Engineer

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Engineer / Consultant

Martin

Martin

Engineer

1,256 satisfied customers

16 years, include works in aluminium plant, industrial machinery, military weapons, programming

Neil

Neil

Engineer

1,009 satisfied customers

NZ Certificate in Engineering Electronics & Computing 25 years exp

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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