Computer accessories from China and quality control services

Computer accessories in China

 Computer-accessories and China quality control service

For computer accessories in China, including input devices, output devices, data processing equipment, and other gadgets, they are computer cables & connectors, Laptop batteries, USB Hubs, Laptop Cooling Pads, Computer Speakers, Laptop Cases & Backpack, USB Gadgets, Memory Card Readers, Laptop Adapters & Chargers, Skin Protectors, Webcams, Mini PCs, Computer Screen Protectors, Computer Cleaners, Laptop Securities, PC Stations, Docking Stations,

But the most hot searched products are Game mouse, Wireless mouse, Game keyboard, USB Gadgets and Air fly keyboard & air mouse.

Quality Inspection with computer accessories

We can’t list all common factors for quality inspection here, below are example for reference,

 Computer accessories and quality control service

Motherboard

1. Function check: a). Plug in the Power, CPU, memory, hard drive, sound card, video card, network card, keyboard, mouse, etc., connect the monitor to boot. should be no malfunction; b). Play the video files on internet. should be no malfunction;

2. Check all the Key, indicator, jack, accessories function

3. Assemble check: Assemble the unit according to the description. (e.g. user manual or instruction sheet or any packing)

4. Running Test: Operate the samples continuously for at least 4 hours at +/- 10% of rated voltage or time reference to the user instruction if less than 4 hours, should be no security problems, no functional damage

5. Carton Drop Check: drop the packed carton with one corner, three edges, six sides, at height of 30inch (﹤9.5kg), or 24inch (9.5kg~18.6kg), or 18inch (18.6kg~27.7kg), or 12inch (27.7kg~45.3kg), or 8inch (45.3kg~68kg) on the cement floor, should be no unit drop out, no any damage on unit;

6. Hi-pot test for adapter: 3000V for adapter, 5mA setting, the adapter should be no breakdown;

7. Battery power level, capacity, voltage test:  check the battery if power level, capacity, voltage compare to specification or not.

Mouse:

1. Check all the key, indicator, jack, accessories if function works

2. Mechanical check should be no failure

3.Pull test on USB cable: take mouse cable plugged into the computer’s USB port, pull it out horizontally, the mouse cable should be no damage

4. Rolling and track test: use the test software provided by the factory to check the rolling and track of the mouse, record the actual findings

5. Resolution capacity check (DPI): should be as per client requirements;

6. Fatigue test: 20 times for each button, plug and switch No damage or block;

7. Rub check: Use cotton dripped with water, rub the marking on rating label and silk-screen printing or electro-plating by hand for 15 seconds. the marking should be clear after the rub, no peel off or lite upward on rating label.

8. Tape check: Use the 3M (600) gummed tape to paste total cover the printing or electro-plating, peel the tape at 90°±30° rapidly

9. Carton drop test: One corner, three edges, six sides, at height standard accordingly to ISTA standard. should be no unit drop out, no any damage on unit.

10. Internal test: open unit, visual, check the workmanship, no damage on component

11. Working and standby current test: measure the working current and standby current respectively, actual record the test data

12. Working frequency measurement (for wireless mouse only): To measure the working frequency for wireless mouse only, and actual record the test data

13. Pairing test for wireless type: For wireless mouse (IR, RF, Bluetooth… etc), pairing test must be done to check the  compatibility and should be no failure

14. The max working distance ( for wireless mouse only): To measure the max working distance that the wireless signal can cover, actual record the test data

15. Battery voltage measurement ( for wireless mouse only): Use the equipment to measure the battery voltage (for wireless mouse only), actual record the test data

16. System compatibility test: The factory would provide the operation system and just check the USB disk in different kinds of operation system specified by the instruction manual or package, test result should match with the specification.



Leave a Reply