Meeting Signal Blocking of cell phone jammer
Remove the antenna switch, antenna switch found under a few feet away, is really unexpected (because this machine not previously repaired, think there will be broken legs). Replacement antenna switch, get! (II): 8210 signal diving this machine over the other stalls repair, repair bad few days, on my office for treatment. Press the power button, the phone has signal, but the signal diving to observe the current that is too large compared with the normal mobile phone. From the analysis of phenomena, signal diving, and more for the launch issue, the current is too large, there may be some emission leakage, specifically, amplifier or antenna switch may be a problem, causing the emission current is too large. It out first antenna switch and power amplifier it. cell phone jammer of low price is very popular.
Antenna switch is better to engage in, first remove the antenna switch, based on experience, mostly out of the antenna switch is broken foot, look no antenna switch off the foot of this, should not be a problem. It would be for power amplifier. Put amplifier, try booting the machine not here! Leakage current of 70MA-a (generally not boot the machine without leakage current 20MA or so). Press the key to open a period of time to observe the fever does not elements, but unfortunately, had to use the method of demolition of parts. First split audio, current constant. Then split CPU, current into 10MA, oh? Is not a bad CPU? Replacement of a good CPU, the current resumed 70MA. CPU is certainly good, how could this be? Do not mind so much, the demolition of character, replaced power supply, still the same! Seems to have no leakage of these pieces. Selling on the internet is also a kind of sales channels for cell phon.
Had to turn back to the processes by not checked. Power outputs can be measured were normal, 26M also, but not to the CPU 13M, the problem probably lies in here, 26M normal, 13M free, it is surely a matter of IF IC. Replacement IF IC, 13M With the current is also normal. Font installed, the phone is switched to normal, but the signal is still diving. Replacement of audio, and then rewrite a set of data, small green beans, get up. Repair the failure to arrive at a useful experience, 8210 mobile phone, 26M normal, 13M is not the current performance of the 70MA. Mobile Fault strange, some of the fault sometimes difficult to analyze from a theory, and therefore in maintenance phone, the empirical method becomes useful. Buying or selling cellular phone jammer on the internet has become a new trend of sales channel.
However, the empirical method is also not working, when, then, we must spend analysis of the. Will inform you of an experience here, 3310 phones press the power button lights flash when the flash, but that does not start, then mostly for font problem. If you do not have the experience, even with the principle of analysis is more likely to bend the way to go friends. (C): 8210 no signal after boot to see the current, and the normal mobile phone. But the phone only shows the network number "China Mobile" does not show the signal bar, replace the audio, rewriting software, get. (D): Symptom: 8250 cell phone signal diving. For the cell phone and mobile phone jammer industry, besides manufacturers, there will be lots of agents, retailers and operators.
Ask the customer: people who switch to another antenna, power amplifier, intermediate frequency, audio, green beans with a small 1.8 repaired. Unsuccessful. First Analysis: As is another audio and restored with a small green beans, a "soft after the first hard" approach, with a large Hong Qiao write a full test of character. The results: When the whole character with a large Hong write, erase is complete, write data to a 5% suspension. Prompt replacement of a line :".... BATVOLLOWVPPVOLLOW ...." Machine electric battery and try again, same result. N times repeat the same results. Of course, the price of cell phone and cell phone jammer is also the concern of the client.