دليل مستخدم الآلة الحاسبة المالية Sharp EL-738XTB

مقدمة

This manual provides comprehensive instructions for the operation and maintenance of your Sharp EL-738XTB 10-Digit Fully Featured Non-programmable Financial Calculator. Designed for business students and professionals, this calculator is ideal for applications in finance, economics, banking, real estate, sales, and accounting. Please read this manual thoroughly to ensure proper use and to maximize the calculator's capabilities.

المنتج انتهىview

الصورة: الجبهة view of the Sharp EL-738XTB Financial Calculator, displaying its 10-digit LCD screen and full keypad with financial, statistical, and standard arithmetic functions.

The Sharp EL-738XTB features a large 10-digit, 2-line LCD display for clear readability. It includes dedicated keys for various financial calculations such as Time Value of Money (TVM), amortization, cash flow analysis (NPV, IRR), and depreciation. Additionally, it supports 1-variable and 2-variable statistics, scientific functions, and has 11 memory registers.

يثبت

تركيب البطارية

The Sharp EL-738XTB requires one CR2032 battery. To install or replace the battery:

1. تأكد من إيقاف تشغيل الآلة الحاسبة.
2. حدد مكان غطاء حجرة البطارية على الجزء الخلفي من الآلة الحاسبة.
3. استخدم مفك براغي صغير لإزالة البرغي الذي يثبت الغطاء، ثم اسحب الغطاء للخارج.
4. Remove the old battery (if applicable) and insert a new CR2032 battery with the positive (+) side facing up.
5. استبدل غطاء حجرة البطارية وثبته بالمسمار.

التشغيل الأولي

اضغط على ON / C key to turn on the calculator. The display should show "0." or similar. If the display is dim or blank, check the battery installation.

تعليمات التشغيل

العمليات الأساسية

• الحساب: أدخل الأرقام واستخدم +, -, ×, ÷ مفاتيح. يضعط = للحصول على النتيجة.
• دخول آمن/الكل خالٍ من العوائق: يضعط ON / C once to clear the current entry. Press it twice to clear all calculations and memory (except independent memory).
• Second Function: Many keys have a second function, indicated above the key. Press الطابق الثاني F then the desired key to access its second function.

Financial Functions (TVM)

The calculator is equipped with Time Value of Money (TVM) functions for financial calculations. The primary TVM keys are N (number of periods), I/Y (interest rate per year), PV (present value), اختبار PMT (payment), and FV (future value).

1. Setting P/Y (Payments per Year): يضعط الطابق الثاني F ثم ص/ص. Enter the desired number of payments per year (e.g., 12 for monthly) and press الأنف والأذن والحنجرة.
2. Inputting Values: Enter a numerical value, then press the corresponding TVM key (N, I/Y, PV, اختبار PMT، أو FV) to store it.
3. Calculating Unknown: After inputting at least four of the five TVM variables, press the key for the unknown variable to calculate its value. For example, to find PMT, input N, I/Y, PV, FV, then press اختبار PMT.

Amortization Calculation

To calculate amortization schedules, use the AMRT function. This typically follows a TVM calculation where a loan is defined.

Cash Flow Analysis (NPV, IRR)

The calculator supports cash flow analysis using Net Present Value (NPV) and Internal Rate of Return (IRR). Use the CFi (Cash Flow Input) and كومب (Compute) keys in conjunction with the القيمة الحالية الصافية و معدل العائد الداخلي functions (accessed via الطابق الثاني F).

الاستهلاك

The calculator offers three different methodologies for depreciation calculation. Refer to the ديبر key and its associated second functions for detailed steps.

Breakeven, Profit, and Percent Difference

استخدم BRKV key for breakeven analysis and other related functions for profit and percent difference calculations.

الحسابات الإحصائية

The EL-738XTB can perform 1-variable and 2-variable statistics. Enter data points using the بيانات function (likely الطابق الثاني F + الأنف والأذن والحنجرة) and then use the statistical keys like Σx, Σx², n, x̄, سيكس, etc., to compute results.

وظائف الذاكرة

• م +: يضيف القيمة المعروضة إلى الذاكرة المستقلة.
• م-: يطرح القيمة المعروضة من الذاكرة المستقلة.
• RCL: Recalls the value from memory.
• ستو: Stores the displayed value into a specific memory register.
• M-CLR: Clears the independent memory (likely الطابق الثاني F + M-CLR).

إعدادات الوضع

اضغط على وضع key to access different calculation modes (e.g., COMP for normal calculations, STAT for statistics). Use the arrow keys to navigate and الأنف والأذن والحنجرة للاختيار.

صيانة

تنظيف

Wipe the calculator with a soft, dry cloth. Do not use abrasive cleaners or solvents, as they may damage the casing أو العرض.

تخزين

Store the calculator in a cool, dry place away from direct sunlight and extreme temperatures. If storing for an extended period, it is recommended to remove the battery to prevent leakage.

استكشاف الأخطاء وإصلاحها

• العرض فارغ أو باهت: Check battery installation. Replace the CR2032 battery if necessary.
• Error message (e.g., "ERROR"): This usually indicates an invalid operation or input. Press ON / C to clear the error and re-enter your calculation. Review the specific function's input requirements.
• Calculator not responding: Try turning the calculator OFF and then ON again. If the issue persists, remove the battery for a few minutes, then reinsert it.

تحديد

الضمان والدعم

For warranty information and technical support, please refer to the documentation included with your purchase or visit the official Sharp webالموقع. احتفظ بإثبات الشراء الخاص بك لتقديم مطالبات الضمان.