RF Module

This RF module executes all the RF functions of EGSM DCS1800 dualband engine. RF circuitry is located on one side ofthe 8-layer transceiver-PWB. The RF design is based on the dualband direct conversion RF-IC Hagar. There is no intermediate frequency. EMC emissions are eliminated by metal shielding cans, which screen the transceiver. Internal screening is realized by separating different sections ofthe RF by shielding cans. The VCO is isolated from Hagar and external components by a can in the...

Service Manual Nokia NPM

This material, including documentation and any related computer programs, is protected by copyright controlled by Nokia Mobile Phones. All rights are reserved. Copying, including reproducing, storing, adapting or translating, any or all of this material requires the prior written consent of Nokia Mobile Phones. This material also contains confidential information, which may not be disclosed to others without the prior written consent of Nokia Mobile Phones. The...

Ul Module Mu

This document describes the MU4 Ul module of the NMP-5 phone Figure 1 Ul module Block diagram 1 The Ul module is connected to the CMT module using a 36-pin connector. The Ul module comprises two standard 2.5mm audio jacks, one for stereo headphones, and the other for line-in signal. A special 4-pin 2.5mm jacks for the HDC-2 headset with microphone. The internal microphone and earpiece for phone audio are routed through the Ul module. Figure 2 Audio Section Block Diagram Figure 2 Audio Section...

CMT Module MA

Vbat Nokia Diagram

This page left intentionally blank Glossary of Technical Summary External Signals and Connectors Internal Signals and connections Power Battery temperature Supply voltage regulators Switched mode power supply Power Up and Power Down Power up with a Power up with power switch Power up by Power up by Power Modes of Operation Acting Active Sleep Digital Control Program and Data Work MCU Memory Flash COBBA Real time RF Maximum Ratings RF DC Frequency Receiver AGC strategy AFC function...

Flash Prommer FPSS Sales Pack

The Flash Prommer FPS-4S is used to update the main software ofthe phone. Updating is done by first loading the new MCU software from the PC to the flash prommer, and then loading the new SW from the prommer to the phone. When updating more than one phone in succession, the MCU software only needs to be loaded to the prommer once.

Disassembly

This page left intentionally blank Disassembly Remove B-cover Remove battery and SIM card Remove front cover A cover Remove Remove light Remove UIF Remove CMT module Remove spacer frame Side keys assembly Main modules reassembly Front cover Fig 1 How to remove B Fig 2 How to remove battery and Fig 3 Opening of front cover Fig 4 How to remove A Fig 5 Fig 6 How to remove light Fig 7 How to remove UIF Fig 8 How to remove CMT Fig 9 CMT module separated from the B Fig 10 CMT PWB Fig 11 Side keys...

Security Box TDF

The Security Box TDF-4 is required for updating MCU software, and infra red testing. Notel TDF-4 is delivered in de-activated mode. Fill in the enclosed Activation Request Form, and fax to NMP Salo to get the activation code Note The infra red module JLP l is not included in the TDF-4 sales package

General instructions for Gsm Rx troubleshooting

Connect the phone to a PC with the module repairjig. Start Wintesla-Service-Software and Select Product Alt p Apply an 1842.867 MHz channel 700 67.710kHz offset -55 dBm signal to the RF connection remember to compensate for cable and adapter attenuation . Measuring with an oscilloscope on Hagar RXI or Hagar RXQ this picture should be seen on a working GSM1800 receiver Figure 25 PCN oscilloscope screen shot Figure 25 PCN oscilloscope screen shot Signal amplitude 1.35V DC offset 1,1V If this...

General Information

Housing Nokia 5510

NPM-5 Product Desktop Accessories Product Technical General Specifications of Transceiver NPM-5 Music player Connectors and keys The NPM-5 is a dual band handportable mobile telephone for the E- GSM900 and1800 Networks. It features enhanced SMS capability with built-in QWERTY keyboard and WAP. It also includes a music recorder player with stereo FM radio. Type code Material code See ProductVariants Standard battery Li-ion 650 mAh BLB-2 AC Travel Chargen Europiug 207-253 vac ACP-7E AC Travel...

User Interface features

Pcb Layout Receiver With Buzzer

MA4 module comprises the following user interface features - Backlight circuit for Keyboard and Display The remaining UI features are described in the manual section User Interface Module MU4 . The power key is connected between the GND and CCONT pin 'PWRONX WDDISX'. The power key is active in LOW state. Display Backlight comprises 4 LEDs connected in parallel in bottom ofthe Display . Keyboard Backlight comprises 4 LEDs connected in parallel. Color of all LEDs is yellow-green, l 570nm...

Mm

Figure 4 Baseband Power Distribution The phone supports both 2-wire and 3-wire Nokia chargers, but when using 3-wire chargers, then the phone connects the 3rd. wire charger control input to Ground. At the DC connector input CHRGR the absolute maximum input voltage is 30V. At the phone end there is no difference between a plug-in charger and a desktop charger because the DC-jack pins and bottom connector charging pads are connected internally in the System connector. The control-line of three...

What RF to tune after repairs

Different repairs require different tuning. In general it is necessary to determine in which section the repair was done to establish which tunings to perform. To determine if RF tuning is necessary after repair it is important that the functionality ofthe repaired circuit is understood well. In case the circuit is not fully understood it might be wise to play it safe and do RF tunings in accordance with the table below. In general repairs in the TX part will require tuning of TX Power and TX I...