Casio DS-1JT Heavy-Duty Desktop Calculator User Manual

1. Pengenalan

This manual provides essential instructions for the proper use and maintenance of your Casio DS-1JT heavy-duty desktop calculator. Designed for durability and efficiency, this calculator features a 300-step check function, tax calculation capabilities, and a robust design suitable for demanding environments. Please read this manual thoroughly before using the calculator to ensure optimal performance and longevity.

2. Produk Lebihview

The Casio DS-1JT is a heavy-duty desktop calculator featuring a classic design and a dark gray plastic case that enhances its durability. It is equipped with a large LCD display and fade-resistant keys for reliable long-term use.

Depan view of the Casio DS-1JT heavy-duty desktop calculator, showing its large LCD display and key layout.

3. Persediaan

3.1 Sumber Kuasa

The Casio DS-1JT calculator operates on dual power: solar and battery. It comes with one battery pre-installed. The solar panel provides power in well-lit environments, while the battery ensures continuous operation in low-light conditions.

3.2 Penggunaan Awal

Upon first use, ensure the calculator is exposed to sufficient light for the solar panel to activate, or press the AC/ON button to power it on. No additional setup is typically required for basic operation.

4. Arahan Operasi

4.1 Pengiraan Asas

• Tambahan (+): Enter the first number, press '+', enter the second number, press '='.
• Tolak (-): Enter the first number, press '-', enter the second number, press '='.
• Pendaraban (×): Enter the first number, press '×', enter the second number, press '='.
• Pembahagian (÷): Enter the first number, press '÷', enter the second number, press '='.

4.2 Fungsi Semak dan Betulkan (300 Langkah)

Fungsi ini membolehkan anda untuk semulaview and correct up to 300 calculation steps. This is particularly useful for preventing errors in long calculations.

• RECHECK: Tekan butang ini untuk kembaliview previous calculation steps.
• BACK/FORWARD: Use these buttons to navigate through the recorded steps.
• BETUL: If an error is found, navigate to the incorrect step and enter the correct value. The calculator will automatically adjust subsequent calculations.

4.3 Tax Calculation

The calculator comes with a pre-adjusted 5% tax rate. You can perform direct calculations for prices including or excluding tax.

• CUKAI+: Adds the pre-set tax rate to the displayed value.
• CUKAI-: Subtracts the pre-set tax rate from the displayed value.

4.4 Fungsi Memori

• M+: Menambah nilai yang dipaparkan pada memori.
• M-: Menolak nilai yang dipaparkan daripada memori.
• BSMM: Recalls the memory content (press once) or clears the memory (press twice).

4.5 Fungsi Lain

• GT (Jumlah Besar): Displays the grand total of all calculations performed since the last GT clear.
• MU (Peningkatan): Calculates mark-up and mark-down percentages.
• % (Peratustage): Digunakan untuk peratusantage pengiraan.
• √ (Akar Segiempat): Mengira punca kuasa dua nombor yang dipaparkan.
• Peralihan 3-Kunci: Ensures that keystrokes are not lost during high-speed input, improving accuracy.
• Silent Touch Keys: Designed for quiet operation, reducing noise during use.
• Function Command Signs: Indicators on the display show the current operation being performed.

5. Penyelenggaraan

5.1 Pembersihan

To clean the calculator, wipe it gently with a soft, dry cloth. Do not use abrasive cleaners, solvents, or excessive moisture, as these can damage the display or internal components.

5.2 Penggantian Bateri

When the display becomes dim or unresponsive in low light, it may be time to replace the battery. Refer to the battery compartment on the back of the calculator for instructions on how to open it and replace the battery. Ensure the calculator is powered off before replacing the battery.

5.3 Penyimpanan

Store the calculator in a cool, dry place away from direct sunlight and extreme temperatures. The anti-slip structure helps keep it stable on your desk.

6. Penyelesaian masalah

6.1 Isu Paparan

• Paparan Malap: Ensure the calculator is in a well-lit area for solar power, or replace the battery if necessary.
• Tiada Paparan: Press the AC/ON button. If still no display, check battery installation or replace the battery.

6.2 Calculation Errors

• Keputusan yang salah: Utilize the 300-step check and correct function (RECHECK, BACK, FORWARD, CORRECT buttons) to review your input and make corrections.
• Tingkah laku yang tidak dijangka: Clear all calculations and memory by pressing AC/ON. If the issue persists, remove and reinsert the battery.

7. Spesifikasi

8. Waranti dan Sokongan

For warranty information and customer support, please refer to the documentation included with your purchase or visit the official Casio webtapak. Simpan bukti pembelian anda untuk sebarang tuntutan waranti.