There's generally the case bebarapa kinds of signal problems, including:
1. Signal weak
2. Signal rise and fall
3. Signal at a specific location
4. Signal 5 seconds
5. No signal
6. Signal 112 only
7. Signal drop
8. Signal apparent
9. Signal certain sim
The function of each hardware component signaling system support working on DCT3:
1. antenna
Function as a catcher and Transmitters Signal wave received by the Cellular Telephone
2. antenna switch
Function as Duplixer / separator between Signal RX (Reception) with Signal TX (transmitting), and could also be referred to as the Terminal on Cellular Telephone
3. rf / Hagar
Functions As a control signal RX (incoming) and TX (out), so that each part can work well, this component consists of several sections such as: IF, Mixer, oscillator, DETECTOR, ENCODER, decoder, AFC, TONE FREQUENCY, Squelch
4. PA
End Functions As a signal amplifier that will be broadcast via an antenna switch components contained within the Cellular Telephone
5. audio / COBBA
Functions As an incoming voice signal processing of RF ICs, amplified and transmitted to the Speaker, to strengthen the sound vibrations that have been converted into vibration Mic electricity is then forwarded to the RF IC, run the command from the CPU and the IC Audio also contained PCM (Pulse Code Module) and EEPROM read function code signals coming from the operator to match the IMEI phone also stores data that is permanent such as: IMEI, Phone Code, Sec.Code
6. VCO
Functions: As the oscillator / frequency generator that will be sent via the TX (transmission) and check the frequency that goes through the RX (Reception) to stay the same as those in the send out. And also to regulate the voltage pulses of RF Signal Processor.
7. power / CCONT
divide the voltage on each of the related components.
Mobile phone signal consists of two parts, the RX (receiver) and TX (sender).
to know there is damage to be done by manually search through the menus on the phone. If the provider when the phone does not get damaged then certainly there on the RX. But, if the phone can receive provider2 that exist but no acsess then certainly damage to the TX.
1. Characteristics of damage RX:
a. no signal when in the manual search.
b. weak signal.
c. signal only appears at certain locations.
d. pake sim can signal if the certain.
2. The characteristics of damage TX:
a. There is a signal but can not get to make calls (false signals).
b. no signal after start up then after a few seconds later
missing.
c. providers can receive but when selected "no acsess"
d. signal drop
