Capacitor C2 on power suplly board will probably have dried out. Should be 47uf 25Volt electrolytic, mine measured
I have replaced this capacitor on 3 of these units and all have come back to life.
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Active USB cables boost the USB signal not the 5v power lines. After about 6 feet the 5v power lines will only provide 4-4.5 volts and this is not enough to power the monitor. For this to work you will you will need to also use a powered USB hub at the remote end by the monitor. The USB hub will supply the power and the monitor needs and the active USB cable will provide the signal.
Not necessarily! As long as a lan cable is connected on the wan port of your hub and the other end goes directly to the modem, the connection is correct. The remaining port will be left for the lan cables of the computers. No orders needed. Just make sure that lan cables was properly seated on the port. The LED blinking in the hub will tell you if its working or communicating with your computer. Find it, when the LED is not lit or blinking, the lan cable is not connected properly on the hub (or the other end of the lan cable is disconnected from the lan card of the computers).
If all cables are connected properly and still cannot connect to the network, you may need to refresh the name of the workgroup on the computers that cannot connect on the network,
How? Right click on My Computer. Select Computer Name Click Change to change the name of the workgroup that is being use by other computer. Delete the old name if the same and retype. Restart the computer and try to connect using network neighborhood.
1. Your cable is bad or not hooked up correctly. Try another cable and make sure it's plugged in snugly to the computer itself, and the hub/router/switch/modem it's hooked up to
2. May be ur os corrupt.
3. if possible it disable 4m bios or registry.
You probably have to buy another switch. However, before you try that - the eighth most right cable - switch that out to see if it was a cable problem. That's an easy thing to try before you buy another switch.
The LEDS blinking normally would indicate reset internally or when the unit has just been powered on. Continous LEDs lighting up or flashing with or without a connection is an indication of extensive hardware failure. This could have been brought about by a near lightning strike, a power surge or simply component failure. Unfortunately the repairs is not economically reasonable and therefore a replacement might be better off. Sorry.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
The POWER LED and LAMP LED are blinking alternately. • It may be a malfunction that the fan is locked or the temperature has increased. The POWER LED and LAMP LED are blinking rapidly simultaneously. • The lamp may not have been installed correctly, or it may be due to a malfunction. • The lamp door may not be closed correctly.
The LAMP LED continues blinking • It may be a malfunction of the internal electrical circuits
maybe its not in the hub/router, or in your lancard has the problem. try to change the networking cable you are using it sometimes the cable has a teared wire inside, or probably the lancard or your hub does not work for the type of networking cable, there are 2 types of connection for UTP cable first is the Straight through cable and the second is the Cross Over connection. Try to mix and match the cable that you have and try to use another one instead..