1. Utangulizi
This manual provides instructions for the proper use and maintenance of your Texas Instruments TI-503SV Pocket Calculator. The TI-503SV is an 8-digit LCD display calculator designed for basic arithmetic operations, making it suitable for everyday calculations.

Figure 1: The Texas Instruments TI-503SV Pocket Calculator, showing its 8-digit LCD display and keypad layout.
2. Kuweka
2.1 Ufungaji wa Betri
The TI-503SV calculator is powered by batteries. To install or replace batteries:
- Tafuta kifuniko cha sehemu ya betri nyuma ya kikokotoo.
- Using a small screwdriver or coin, gently open the battery compartment.
- Insert the required batteries, ensuring correct polarity (+ and - terminals). Refer to the markings inside the compartment.
- Funga kifuniko cha sehemu ya betri kwa usalama.
The calculator is designed for immediate use upon battery installation. No additional setup is typically required.
3. Maagizo ya Uendeshaji
This section details the basic functions and operations of the TI-503SV calculator.
3.1 Washa/Zima
- Ili kuwasha kikokotoo, bonyeza kitufe ON/C ufunguo.
- The calculator will automatically power off after approximately 5-10 minutes of inactivity to conserve battery life.
3.2 Uendeshaji wa Msingi wa Hesabu
Enter numbers using the numeric keypad and perform operations as follows:
- Nyongeza (+): Enter first number, press +, enter second number, press =.
- Kutoa (-): Enter first number, press -, enter second number, press =.
- Kuzidisha (x): Enter first number, press x, enter second number, press =.
- Kitengo (÷): Enter first number, press ÷, enter second number, press =.
3.3 Vitendakazi Vilivyo Wazi
- Clear Entry (CE): Clears the last entered number or operation without affecting previous calculations. Pressing CE once clears the current entry.
- Clear All (ON/C): Clears all entries and operations, resetting the calculator to zero. Pressing ON/C twice (or once if no entry) clears everything.
3.4 Kazi za Kumbukumbu
The calculator includes memory functions to store and recall values.
- Memory Plus (M+): Huongeza thamani inayoonyeshwa kwenye kumbukumbu.
- Memory Minus (M-): Huondoa thamani inayoonyeshwa kutoka kwenye kumbukumbu.
- Memory Recall/Clear (MRC):
- Press once to recall the value stored in memory.
- Press twice to clear the memory (sets memory to zero).
3.5 Kazi Nyingine
- Asilimiatage (%): Inatumika kwa asilimiatage mahesabu. Kwa mfanoample, ili kukokotoa 10% ya 50: ingiza 50, bonyeza x, ingiza 10, bonyeza %.
- Square Root (√): Calculates the square root of the displayed number. Enter number, press √.
- Sign Change (+/-): Changes the sign of the displayed number from positive to negative or vice versa.
4. Matengenezo
4.1 Kusafisha
Ili kusafisha kikokotoo, tumia kitambaa laini na kikavu. Kwa uchafu mkaidi, tumia kitambaa kidogoampen the cloth with water or a mild, non-abrasive cleaner. Avoid using harsh chemicals, solvents, or abrasive materials, as these can damage the display or casing.
4.2 Ubadilishaji wa Betri
When the display becomes dim or the calculator functions erratically, it is likely time to replace the batteries. Refer to section 2.1 Ufungaji wa Betri for instructions. Always dispose of used batteries responsibly according to local regulations.
4.3 Hifadhi
Hifadhi kikokotoo mahali pakavu na penye baridi, mbali na jua moja kwa moja, halijoto kali, na unyevunyevu mwingi. Ikiwa kitahifadhiwa kwa muda mrefu, inashauriwa kuondoa betri ili kuzuia uvujaji.
5. Utatuzi wa shida
If you encounter issues with your TI-503SV calculator, refer to the following common problems and solutions:
| Tatizo | Sababu inayowezekana | Suluhisho |
|---|---|---|
| Onyesho ni tupu au hafifu. | Betri za chini au zilizokufa. | Replace batteries. Ensure correct polarity. |
| Kikokotoo hakiwashi. | No batteries, dead batteries, or incorrect battery installation. | Check battery installation and replace if necessary. Press ON/C. |
| Matokeo ya hesabu yasiyo sahihi. | Incorrect key entry, or previous calculation not cleared. | Bonyeza ON/C twice to clear all and re-enter calculation. Verify input. |
| Funguo hazijibu. | Dirt or debris under keys, or internal malfunction. | Gently clean around keys. If problem persists, contact support. |
6. Vipimo
Key specifications for the Texas Instruments TI-503SV Pocket Calculator:
- Mfano: TI-503SV
- Aina ya Kuonyesha: LCD yenye tarakimu 8
- Chanzo cha Nguvu: Inaendeshwa na Betri
- Aina ya Kikokotoo: Kazi ya Kawaida
- Vipimo vya Bidhaa: Inchi 1 x 1 x 1 (kadirio)
- Uzito wa Kipengee: Wakia 3.2 (takriban)
- Mtengenezaji: Vyombo vya Texas
7. Udhamini na Msaada
For warranty information or technical support, please refer to the documentation included with your purchase or visit the official Texas Instruments webtovuti. Weka uthibitisho wako wa ununuzi kwa madai ya udhamini.
Official Texas Instruments Webtovuti: elimu.ti.com





