How it Works BB5 on Cell phone IC part
1.Level Shifter
IC serves to manages the data path from the front camera to the CPU. When broken, it will result in the undermining of the front camera so it does not get activated.
2.64 Mbit NOR Flash
This is the IC with a capacity of 64 Mbit Flash. Flash IC storing programs to be executed by the CPU. There are two Flash IC damage, damage to hardware, and software. Damage is damage to the IC hardware itself, the damage occurs when the software program content removed or changed inadvertently. Both of these damages are not normally produce mobile phones, such as the total dead cell phone, hang, LCD blank, no signal, the phone is locked, and much more. How to repair, if there is a software malfunction by flashing process.
3.IC TK65600B
This IC is to raise the DC voltage level. When the IC is damaged, it can cause the light on the screen and not on the phone keypad.
4.RAP 3G
Stands for Radio Application Processor. Is one of two CPU's in BB5 phones. The function of the CPU is certainly control the performance of the cell phone, but one of its main functions is to control, process data part of the cell phone radio. When the CPU is damaged, or the part of the CPU is damaged, the phone can be totally dead, no signal, and others.
5.OMAP
Stands for Open Multimedia Application Platform. The second is the CPU of a mobile phone BB5 generation. OMAP is also often called APE (Phone Application Engine). Function is different from the CPU RAP 3G. CPU is more focused on job applications on mobile phones such as camera, Bluetooth, LCD, Keypad, MMC, and others. So if this CPU problem, or part of the CPU is damaged, it will cause the death total, the keypad can not be suppressed, Bluetooth error, MMC problem, the camera is not functioning, LCD blank, and others
6.64 Mbit SDRAM
RAM stands for Random Access Memory, is the CPU memory is temporary and can not store data permanently, if the working voltage RAM is lost, together with the data in RAM is lost also participated. If the RAM is damaged, generally the total dead phone, can not be reprogrammed.
7.RETU
This IC is one of the two existing power IC types BB5 phones. Damage to the IC could cause total dead phone, could not get the network, No network, the card can not read, can not read MMC, interference with the audio, and others.
8.Combo Memory
Memory type is a combination of Flash 256 Mbit to 256 Mbit RAM. Memory has a capacity large enough. The contents of this memory is to store data in the form of data to run the program OMAP CPU. Not normally the content of the program in memory combo will cause many types of damage. One that often happens is that the LCD blank.
32 Khz crystal 9.Osilator
This component is a type of crystal oscillator function produces a wave with a frequency of 32 768 Hz. When this component is not normally a problem could lead to mobile, such as mobile phones can not be lit, a problem at a cell phone, etc.
10.Anti static
Anti static function is to protect the IC from static electricity this time is used to protect the CPU from static electricity that may be entered via a keypad. So when the IC is damaged can cause malfunctioning keypad, or often referred to as the "keypad hank"
11.LM 2708
Rangkain IC form a series of SMPS (Switch Mode Power Supply). Or circuit switching power supply with the system. This circuit produces a voltage of 1.4 volts Vcore called A. This voltage is applied stress for OMAP CPU. So if there is a problem in this series, OMAP does not work normally, cell phone will die in total.
WCDMA antenna 12.Konektor
BB5 like N70 mobile phone has two systems, GSM and WCDMA. WCDMA's antenna connector if dirty or bad connect will cause signal interference in WCDMA networks.
WCDMA switch 13.Antena
The function of this component is to separate the signal RX (Receiver) and signal TX (transmitter). When broken will disrupt radio system in WCDMA systems.
14.Regulator camera
The regulator's functions provide a stable voltage to the front camera. Disturbances in the IC circuit and the circuit will cause the camera to malfunction forward on this N70 phone.
15. PA and controlling
This circuit serves to strengthen the signal band WCDMA transmitter. IC PA is often called the final amplifier. If the item is defective, it will be difficult to use the phone to call. Or it could also cause handpone no signal indicator at all.
16.DC/DC converter for flash
This circuit is used to turn the lights flash when you're shooting pictures. The way it works is to raise the level of the DC voltage into a higher voltage level. When the circuit is problematic, would interfere with the function of flash lights.
17.HINKU
This IC may also be called the RX Processor. Its function is to process the RX signal both GSM and WCDMA. When the IC is damaged or abnormal work will result handphnoe no signal, weak signal reception, and so on.
18.Filter RX
This filter function as a filter. If terjdi problem on this component, the receiver signal will be disrupted. Since this is a filter WCDMA, there will be interference with the WCDMA band, if the filter is problematic.
19.VINKU
IC is a function to process the signal TX. This IC can process the signal both GSM and WCDMA TX. If the IC is problematic will cause problems at the transmitter. The symptoms are difficult for the mobile phone, it is also difficult to take a call, it could be no signal at all.
