1. Introducció
This manual provides essential instructions for the safe and effective use of your GUY-TECH AC Adapter, designed as a compatible power supply for the Casio CTK-3500 Keyboard Piano. Please read this manual thoroughly before use to ensure proper operation and longevity of the product.
2. Instruccions de seguretat
- Ensure the adapter is used only with compatible devices, specifically the Casio CTK-3500 Keyboard Piano.
- No exposeu l'adaptador a l'aigua, la humitat ni a temperatures extremes.
- Eviteu deixar caure l'adaptador ni sotmetre'l a impactes forts.
- Do not attempt to open or modify the adapter. This can lead to electric shock or product damage.
- Keep the adapter and cable away from heat sources and sharp objects.
- Unplug the adapter from the wall outlet when not in use for extended periods.
- If the adapter or cable appears damaged, discontinue use immediately and seek a replacement.
3. Producte acabatview
The GUY-TECH AC Adapter provides reliable DC power to your Casio CTK-3500 Keyboard Piano. It features a 5-foot cable for flexible placement and an LED indicator to confirm power status.

Figure 1: GUY-TECH AC Adapter. This image shows the power adapter unit with a standard US plug, connected to a coiled 5-foot cable ending in a barrel connector. A small red LED indicator is visible on the adapter unit.

Figure 2: Key Features. This image highlights two key features: a '5 FEET' label indicating the cable length and an 'LED light' label indicating the presence of a power indicator.
4. Configuració i connexió
- Verificar la compatibilitat: Before connecting, ensure your device is a Casio CTK-3500 Keyboard Piano. Using this adapter with incompatible devices may cause damage.
- Connect to Keyboard: Locate the DC input jack on your Casio CTK-3500 Keyboard Piano. Insert the barrel connector of the GUY-TECH AC Adapter firmly into this jack.
- Connecteu-vos a la presa de corrent: Plug the AC adapter into a standard 100V-240V wall outlet.
- Indicador d'alimentació: The LED indicator on the adapter will illuminate, confirming that power is being supplied.
5. Instruccions de funcionament
Once connected as described in Section 4, your Casio CTK-3500 Keyboard Piano will receive power. Turn on your keyboard using its power switch. The adapter operates continuously when plugged into a live outlet and connected to the device. The LED indicator provides a visual confirmation of power flow.
6. Manteniment i cura
- Neteja: Disconnect the adapter from the power outlet and the keyboard before cleaning. Wipe the adapter and cable with a soft, dry cloth. Do not use liquid cleaners or solvents.
- Emmagatzematge: Quan no l'utilitzeu, guardeu l'adaptador en un lloc fresc i sec, allunyat de la llum solar directa i de temperatures extremes. Eviteu enrotllar el cable massa fort per evitar danys.
- Inspecció del cable: Periodically inspect the cable for any signs of wear, cuts, or fraying. If damage is observed, replace the adapter immediately.
7. Solució De Problemes
- No Power to Keyboard:
- Ensure the adapter is securely plugged into both the wall outlet and the keyboard.
- Comproveu si la presa de corrent funciona connectant-hi un altre dispositiu.
- Verify that the LED indicator on the adapter is illuminated. If not, the adapter may not be receiving power or may be faulty.
- Confirm that your keyboard's power switch is in the 'ON' position.
- L'indicador LED no s'encén:
- Comproveu si hi ha corrent a la presa de corrent.
- Assegureu-vos que l'adaptador estigui completament inserit a la presa de corrent.
- If the issue persists, the adapter may be faulty.
- Potència intermitent:
- Comproveu si totes les connexions estan soltes.
- Inspect the cable for damage. A damaged cable can cause intermittent power.
If troubleshooting steps do not resolve the issue, please contact the seller for further assistance.
8. Especificacions
| Marca | GUY-TECH |
| Model compatible | Casio CTK-3500 Keyboard Piano |
| Entrada Voltage | 100V - 240V AC (Worldwide Compatible) |
| Vol. De sortidatage | 9 Volts DC |
| Tipus de connector | Connector de barril |
| Longitud del cable | 5 peus |
| Característiques especials | Indicador LED, sobrevol.tagProtecció electrònica, protecció contra sobrecorrent, protecció contra curtcircuits |
| Pes de l'article | 5 unces |
9. Informació de la garantia
Specific warranty details for this GUY-TECH AC Adapter are provided by the seller at the time of purchase. Please refer to your purchase documentation or contact the seller directly for information regarding warranty coverage and terms.
10. Atenció al client
For any questions, technical assistance, or support regarding your GUY-TECH AC Adapter, please contact the seller through your original purchase platform. Provide your order number and a detailed description of your inquiry for prompt assistance.