Question about Samsung SGH-X650 Cellular Phone
Hi, i am himanshu from bahadurgarh. i have a samsung sgh X650 mobile phone. i love my phone so much but a major problem occurs in my phone that it is not able to search for the signal and always shows no sevice available or call not allowed even after the insertion of simcard.i have showed my phone to number of mechanics but they didn"t get success to solve my problem .
all other functions of phone works after we insert simcard. but it is not able to search signal.please sir, help me to solve my problem. i cannot replace my phone due to moneyproblem. also i am not able to get internat settings in my phone. i have bsnl connection.ihad also restart problem iwent to service centre 3 or more times to solve my problem they dont solve this problem piz sir solve this problem......
Posted on Jul 11, 2008
First check in settings of ur phone. check wht it is showing in caller id, if it is set to hide id, then change it to send id, u wil be able to make calls again.if everything ok caller id, then problem in ur phone hardware
Posted on Feb 18, 2008
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Posted on Jan 02, 2017
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(North American and Taiwan models) You can connect speakers with an impedance of between 6 and 16 ohms. If you use speakers with a lower impedance, and use the amplifier at high volume levels for a long period of time, the built-in amp protection circuit may be activated.
The STANDBY indicator flashes red
The protection circuit has been activated. Remove the power cord from the wall outlet immediately.
Disconnect all speaker cables and input sources, and leave the AV receiver with its power cord disconnected for 1 hour. After that, reconnect the power cord and set the volume to maximum. If the AV receiver stays on, set the volume to minimum, disconnect the power cord, and reconnect your speakers and input sources. If the AV receiver turns off when you set the volume to maximum, disconnect the power cord, and contact your Onkyo dealer.
Generally speaking, an amp protects itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.
Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.
You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.
If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.
If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.
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