User’s Manual For Model : SK-7260 RF Wireless Keyboard Version: 1.0 Department: HIS, R&D Date: May.
Table of Contents 1. GENERAL MAIN FEATURE .............................................................................................................1 SOFTWARE REQUIREMENT .............................................................................................1 2. MECHANICAL ID KEYBOARD/RECEIVER ......................................................................................................2 3. ELECTRICAL FEATURE 3.1 KEYBOARD TRANSMITTER ........................................................
1. General SK-7260 is a 27 MHZ RF keyboard set, the product is composed of a wireless desk top PC keyboard and a PS2 receiver. The keyboard includes Standard function keys and several (option) easy access keys. General the receiver supports both keyboard and mouse function. There are only described keyboard and receiver functionality in the product specification but excluded mouse specification.
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3. Electrical Specification Functional Block diagram: Low power indicator Keyboard (Base-Band) CPU TX-Freq : Crystal : 32.768KHz 27.145 MHz RF Link Microprocessor MA6231 Microprocessor MA6135 RX-Freq : Base-Band Crystal : 26.690 CPU /26.590 MHz Crystal : 32.768KHz PS2 Interface PC Host cable NumL ,CAP, Scrol LED Data indicator 3.1 Keyboard Transmitter Operating voltage The operating voltage range for keyboard is 2 ~ 3.3 Vdc. There are 2 AA batteries providing 3.
3.1.1 Circuitry PCB Assembly Microprocessor MA6231 , MosArt ‘s Chip is applied. It’s placed on the PCB main board. There is also an antenna connected to this PCB for transmitting RF signal. 3.1.2 Battery Life The battery life under the operating condition of 10 keystrokes/sec continuous use is 80 hours for alkaline type and 30 hours for Zinc-Carbon type. 3.1.3 Effective Transmission Distance Effective transmission distance is 2 meters. 3.1.
10 11 12 13 14 WWW Back WWW Forward WWW Favorites WWW Search WWW Refresh E0 6A E0 69 E0 66 E0 65 E0 67 E0 EA E0 E9 E0 E6 E0 E5 E0 E7 E0 38 E0 30 E0 18 E0 10 E0 20 E0 F0 38 E0 F0 30 E0 F0 18 E0 F0 10 E0 F0 20 *These controls are currently supported in Windows Me only. 3.2 Receiver 3.2.1 Operating voltage Voltage supplied to keyboard: 5+/-0.25 VDC With ripple lower than 150mv, and capable of supply load current up to 100 mA with voltage drop less than 0.
communication between them. 3.3.2 Operation Battery Installation Installs two AA batteries to transmitter and connected the receiver with PC system, it’s ready for connection procedure. Connection (ID Pairing) procedure Procedure by steps Step-1:Pressing channel button on the transmitter one time first , Step-2: Right away to press the channel button on the receiver at second and they Should be in connection between, Step-3: Then go to the normal operate.
4. NOTE This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection. This equipment generates, uses and can radiated radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
