Battery information

Note A new battery's full performance is achieved only after two or three complete charge and discharge cycles The battery can be charged and discharged hundreds of times but it will eventually wear out. When the operating time (talk-time and standby time) is noticeably shorter than normal, it is time to buy a new battery. Use only batteries approved by the phone manufacturer and recharge the battery only with the chargers approved by the manufacturer. Unplug the charger when not in use. Do not...

Retu On Nokia 6681

USB interface electrical characteristics (Page 9-30) SIM interface The device has one SIM (Subscriber Identification Module) interface and the SIM card location is under the battery. SIM interface consists of internal interface between RAP3G and Retu and an external interface between Retu and SIM contacts. SIM interface functionality is located in RAP3G while Retu takes care of power up down, card detection, ATR counting and level shifting. For Retu external SIM IF connections, see SIM...

Steps

Make sure the connection has been managed correctly for FPS-8 or FPS-10. ii Update the phone MCU software to the latest available version. If the new flash is empty and the phone cannot communicate with Phoenix, the procedure in this case is a Dead Phone Flash described below. iii Choose the product manually from File -> Open Product, and click OK. Wait for the phone type designator (e.g. RM-1 ) to be displayed at the bottom of the screen. iv Go to Flashing -> SW...

Contac Servis Nokia1666

Common mode voltage is a mean value of high and low states of one single-ended signal. Differential voltage swing is differential amplitude between signals of differential pair. Differential transitions should be only measured with good equipment (bandwith > 1GHz), otherwise results will seem too slow. Table 29 Camera supply voltage characteristics Table 29 Camera supply voltage characteristics

Egsm Tx

3.2.1.1.1.1 Replace Hinku (N7500) 3.2.1.1.2 Replace antenna switch Z7503 3.2.1.2 Are matching components in place and working correctly GSM850 EGSM900 C7512, C7514 and L7504 GSM1800 C7581, C7584 and L7505 GSM1900 C7523, C7525 and L7506 Check that components are in place and solder joints are ok Use an ohmmeter to check that inductors are conducting DC. Replace matching components 3.2.2 Are RX-IQ signal waveforms and levels correct Measurements can be done with an oscilloscope, a probe and...

Next action

After the installation, Phoenix service software can be used after installing phone model specific data package for Phoenix configuring users and connections FPS-8* and FPS-10 flash prommers can be used after updating their Flash Update Package files. Updating Phoenix installation If you already have the Phoenix service software installed on your computer, you need to update the software when new versions are released. When you update Phoenix (for example, a14_2004_16_4_47 to a15_2004_24_7_55),...

NOTE If Vinku Asic is transmitting wrong TX power just in one or two GSMbands typically this means that Vinku Asic N is

SAW-filter Z7504 or balun T7502 can be also faulty badly soldered and causing short-circuit, but probability to this is quite low. For example VINKU is transmitting too low power in GSM850 EGSM900-band but TX-power is ok in other GSM-bands. Then it's almost clear that VINKU (N7501) is faulty or badly soldered and the component should be replaced. 3.1.2.1.1 RF operating voltage VBAT_ASIC ok See section RF operating voltage VBAT ASIC ok 3.1.2.1.2 Are Vinku (N7501) regulator voltages VREG1, VREG2...

Installing Phoenix Before you begin

Check that a dongle is attached to the parallel port of your computer. Download the installation package (for example, phoenix_service_sw_2004_39_x_xx.exe) to your computer (in C TEMP, for instance). Depending on the operating system, administrator rights may be required to be able to install Phoenix . If uninstalling or rebooting is needed at any point, you will be prompted by the InstallShield program.

Rf Self Tests

The RF part of the device is equipped with self test functionality which tests most of RF-BB interface signals and some parts of RF circuitry. Self tests are designed to detect faults on some critical parts, but they can not prove that everything is OK even if all the self tests are passed. Self-tests can be run with Phoenix service software. Tests can return pass fail result and detailed measurement data and error codes in fail case. Select Testing -> Self Tests from the Phoenix menu. Select...

Info

Poor solder Faulty TETU Other possiblo geasons Correct fre qne ncy and Hinku says it's not locked ttien change Hinku Check the loop oomponen ts solder joints, if no help, ch ang e Vinku. If still not working, change TX VCO. 2.7 RX IQ loop back self test ST_CDSP_RX_IQ_LOOP_BACK_TEST RX_IQ_LOOPBACK 81 tests that the RXI lines amp VREFCM line between RAP amp HINKU are connected. Tested signals VBAT_ASIC, RXQP, RXQN, RXIP, RXIN, VREFCM, TXIP, TXIN, RFBUS Error code for this self test is given in...

Clocking scheme

In BB5.0, two main clocks are provided to the system 38.4MHz RF clock produced by VCTCXO in RF section and 32.768kHz sleep clock produced by RETU with an external crystal. RF clock is generated only when VCTCXO is powered on by RETU regulator. Regulator itself is activated by SleepX signals from both RAP3G and Helen3. When both CPUs are on sleep, RF clock is stopped. RF clock is used by RAP3G that then provides divided 19.2MHz SysClk further to OMAP. Both RAPG and Helen3 have internal PLLs...

Certificate restoring for BB products Context

After replacing a defective Flash memory component in BB 5.0 products, Certificate Restoring must be carried out to make the phone functional again. Certificate restoring for BB5.0 products is basically the same process as IMEI ESN Rebuild for DCT-4 generation products. All tunings RF amp Baseband, UI must be done after replacing the flash IC. The procedure for Certificate Restoring when Flash IC has been replaced Flash the phone with the latest available software Use FPS-8 or FPS-10, USB...

Phoenix installation steps in brief

Phoenix is the service software for reprogramming, testing and tuning the phone. Recommended PC HW requirements Computer Processor Pentium 700 MHz or higher Windows 2000 Service Pack 3 or higher Windows XP Service Pack 1 or higher Install the Phoenix Service SW Install the Data Package for Phoenix Manage connection settings depends on the tools you are using If you use FPS-8 Note There is no need to activate FPS-10. Activate SX-4 Smart Card if you need tuning and testing functions in service...

Service Software Instructions

Service Software Instructions Nokia Customer Care Phoenix installation steps in Installing Updating Phoenix Uninstalling Repairing Phoenix Phoenix service software data package Installing Phoenix data Uninstalling Phoenix data Configuring users in Managing connections in Installing flash support files for FPS-8 and Updating FPS-8 and FPS-10 flash prommer Activating Deactivating Figure 2 Dongle not Figure 3 Disclaimer Figure 4 InstallShield Wizard Figure 5...

Nokia Service Manual Structure

2 Parts Lists and Component Layouts 3 Service Software Instructions 4 Service Tools and Service Concepts 5 Disassembly Reassembly Instructions 6 BB Troubleshooting and Manual Tuning Guide 7 RF Troubleshooting and Manual Tuning Guide 8 Camera Module Troubleshooting This page left intentionally blank. Nokia 6681 6682 Service Manual Structure

Gsm Gmsk modulation spectrum ok

GSM transmitter has to be active before measurements. Procedure is explained in section Transmitter troubleshooting. Measurement can be done with a GSM transmitter tester or other GSM communication tester. Settings have to be done according to the 3GPP specifications. Modulation spectrum measurement is possible to perform also with a spectrum analyser, but in this case measurement settings have to be done manually. Attach the phone to the product specific test jig and the RF-test device to the...

Tx power level tuning Context

Because of variations in the IC process and discrete component values, the actual transmitter RF gain of each phone is different. Tx power level tuning is used to find out mapping factors called 'power coefficients'. These factors adjust the GSM transmitter output power to fulfill the required specifications. For EDGE transmission the bias settings of the GSM PA are adjusted in order to improve linearity. This affects the PA gain and hence the power levels have to be aligned separately for EDGE...

Introduction to Bluetooth troubleshooting

There are two main Bluetooth problems that can occur This would most likely happen if the device has been dropped repeatedly to the ground. It could cause the BT antenna to become loose or partially detached from the PWB. see the following figures for details about BT antenna HW and Mechanics A malfunction in the BT ASIC, BB ASICs or Phone's BT SMD components. This is unpredictable and could have many causes i.e. SW or HW related. The main issue is to find out if the problem is related to the...

Image quality analysis Testing for dust in camera module Context

For detecting these kinds of problems, take an image of a uniform white surface and analyse it in full resolution. A good quality PC monitor is preferred for analysis. Search carefully, since finding these defects is not always easy. Figure Effects of dust on optical path is an example image containing easily detectable dust problems. When taking a white image, use uniformly lightened white paper or white wall. One possibility is to use uniform light but in this case make sure that the camera...

Does the phone give realistic RSSIvalues

Attach the phone to the product specific test jig and a signal generator to the RF-coupler. Coupler attenuation should be also taken into account during measurements. Use the signal generator to supply -90 dBm RF-level unmodulated signal to the phone via the antenna coupler. Set generator RF-level to -90 dBm cable and coupler attenuation. This measurement should be performed in a RF-shielded environment because existing GSM-network base stations can disturb this measurement otherwise. Set...