Nokia Lumia 1320 Schematics

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Nokia Customer Care

Service Manual

RM-994/ RM-995/ RM-996

(Nokia Lumia 1320; L3&4)

Mobile Terminal

Part No: (Issue 1)

NOKIA INTERNAL USE ONLY

RM-994/ RM-995/ RM-996

Amendment No

Date

Inserted By

Comments

Issue 1

12/2013

MT

Issue 2

Amendment Record Sheet

Page 2 NOKIA INTERNAL USE ONLY

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Copyright

without the prior written permission of Nokia is prohibited. Nokia, Nokia Connecting People, and Nokia X and Y are trademarks or registered trademarks of Nokia

Corporation. Other product and company names mentioned herein may be trademarks or tradenames of their respective owners.

Nokia operates a policy of continuous development. Nokia reserves the right to make changes and improvements to any of the products described in this document without prior notice.

Under no circumstances shall Nokia be responsible for any loss of data or income or any special, incidental, consequential or indirect damages howsoever caused.

The contents of this document are provided "as is". Except as required by applicable law, no warranties of any kind, either express or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose, are made in relation to the accuracy, reliability or contents of this document. Nokia reserves the right to revise this document or withdraw it at any time without prior notice.

The availability of particular products may vary by region.

IMPORTANT

This document is intended for use by qualified service personnel only.

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Warnings and cautions

Warnings

● IF THE DEVICE CAN BE INSTALLED IN A VEHICLE, CARE MUST BE TAKEN ON INSTALLATION IN

VEHICLES FITTEDWITH ELECTRONIC ENGINE MANAGEMENT SYSTEMS AND ANTI-SKID BRAKING SYSTEMS. UNDER CERTAIN FAULT CONDITIONS, EMITTED RF ENERGY CAN AFFECT THEIR OPERATION. IF NECESSARY, CONSULT THE VEHICLE DEALER/ MANUFACTURER TO DETERMINE THE IMMUNITY OF VEHICLE ELECTRONIC SYSTEMS TO RF ENERGY.

● THE PRODUCT MUST NOT BE OPERATED IN AREAS LIKELY TO CONTAIN POTENTIALLY

EXPLOSIVE ATMOSPHERES, FOR EXAMPLE, PETROL STATIONS (SERVICE STATIONS), BLASTING AREAS ETC.

● OPERATION OF ANY RADIO TRANSMITTING EQUIPMENT, INCLUDING CELLULAR TELEPHONES,

MAY INTERFERE WITH THE FUNCTIONALITY OF INADEQUATELY PROTECTED MEDICAL DEVICES. CONSULT A PHYSICIAN OR THE MANUFACTURER OF THE MEDICAL DEVICE IF YOU HAVE ANY QUESTIONS. OTHER ELECTRONIC EQUIPMENT MAY ALSO BE SUBJECT TO INTERFERENCE.

● BEFORE MAKING ANY TEST CONNECTIONS, MAKE SURE YOU HAVE SWITCHED OFF ALL

EQUIPMENT.

Cautions

● Servicing and alignment must be undertaken by qualified personnel only.

● Ensure all work is carried out at an anti-static workstation and that an anti-static wrist strap is worn.

Ensure solder, wire, or foreign matter does not enter the telephone as damage may result.

● Use only approved components as specified in the parts list.

● Ensure all components, modules, screws and insulators are correctly re-fitted after servicing and

alignment. Ensure all cables and wires are repositioned correctly.

● Never test a mobile phone WCDMA transmitter with full TX power, if there is no possibility to perform

the measurements in a good performance RF-shielded room. Even low power WCDMA transmitters may disturb nearby WCDMA networks and cause problems to 3G cellular phone communication in a wide area.

● During testing never activate the GSM or WCDMA transmitter without a proper antenna load, otherwise

GSM or WCDMA PA may be damaged.

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For your safety

QUALIFIED SERVICE

Only qualified personnel may install or repair phone equipment.

ACCESSORIES AND BATTERIES

Use only approved accessories and batteries. Do not connect incompatible products.

CONNECTING TO OTHER DEVICES

When connecting to any other device, read its user’s guide for detailed safety instructions. Do not connect

incompatible products.

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ESD protection

Nokia requires that service points have sufficient ESD protection (against static electricity) when servicing the phone.

Any product of which the covers are removed must be handled with ESD protection. The SIM card can be replaced without ESD protection if the product is otherwise ready for use.

To replace the covers ESD protection must be applied. All electronic parts of the product are susceptible to ESD. Resistors, too, can be damaged by static

electricity discharge. All ESD sensitive parts must be packed in metallized protective bags during shipping and handling outside

any ESD Protected Area (EPA). Every repair action involving opening the product or handling the product components must be done under

ESD protection. ESD protected spare part packages MUST NOT be opened/closed out of an ESD Protected Area. For more information and local requirements about ESD protection and ESD Protected Area, contact your

local Nokia after Market Services representative.

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Care and maintenance

This product is of superior design and craftsmanship and should be treated with care. The suggestions below will help you to fulfill any warranty obligations and to enjoy this product for many years.

● Keep the phone and all its parts and accessories out of the reach of small children.

● Keep the phone dry. Precipitation, humidity and all types of liquids or moisture can contain minerals

that will corrode electronic circuits.

● Do not use or store the phone in dusty, dirty areas. Its moving parts can be damaged.

● Do not store the phone in hot areas. High temperatures can shorten the life of electronic devices,

damage batteries, and warp or melt certain plastics.

● Do not store the phone in cold areas. When it warms up (to its normal temperature), moisture can form

inside, which may damage electronic circuit boards.

● Do not drop, knock or shake the phone. Rough handling can break internal circuit boards.

● Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the phone.

● Do not paint the phone. Paint can clog the moving parts and prevent proper operation.

● Use only the supplied or an approved replacement antenna. Unauthorized antennas, modifications or

attachments could damage the phone and may violate regulations governing radio devices.

All of the above suggestions apply equally to the product, battery, charger or any accessory.

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Company policy

Our policy is of continuous development; details of all technical modifications will be included with service bulletins.

While every endeavor has been made to ensure the accuracy of this document, some errors may exist. If any errors are found by the reader, NOKIA MOBILE PHONES Business Group should be notified in writing/e-mail.

Please state:

1. Title of the Document + Issue Number/Date of publication.

2. Latest Amendment Number (if applicable).

3. Page(s) and/or Figure(s) in error.

Please send to:

NOKIA CORPORATION Nokia Mobile Phones Business Group Nokia Customer Care PO Box 86 FIN-24101 SALO Finland E-mail: Service.Manuals@nokia.com

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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 leave the battery connected to a charger for longer than a week, since overcharging may shorten its lifetime. If left unused a fully charged battery will discharge itself over time.

Temperature extremes can affect the ability of your battery to charge. For good operation times with Lithium-Ion Polymer Rechargeable batteries, discharge the battery from time

to time by leaving the product switched on until it turns itself off (or by using the battery discharge facility of any approved accessory available for the product). Do not attempt to discharge the battery by any other means.

Use the battery only for its intended purpose. Never use any charger or battery which is damaged. Do not short-circuit the battery. Accidental short-circuiting can occur when a metallic object (coin, clip or

pen) causes direct connection of the + and - terminals of the battery (metal strips on the battery) for example when you carry a spare battery in your pocket or purse. Short-circuiting the terminals may damage the battery or the connecting object.

Leaving the battery in hot or cold places, such as in a closed car in summer or winter conditions, will reduce the capacity and lifetime of the battery, Always try to keep the battery between 15°C and 25°C (59°F and 77° F). A phone with a hot or cold battery may temporarily not work, even when the battery is fully charged. Batteries' performance is particularly limited in temperatures well below freezing.

Do not dispose of batteries in a fire! Dispose of batteries according to local regulations (e.g. recycling). Do not dispose as household waste.

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Nokia Lumia 1320; L3&4 Service Manual Structures

1. General Information

2. Service Tools and Service Concepts

3. BB Troubleshooting Guide

4. RF Troubleshooting

5. Camera Module Troubleshooting

6. System Modules

7. Glossary

Page 10 NOKIA INTERNAL USE ONLY

Nokia Customer Care

1 General Information

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General Information

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General Information

Table of Contents

Product selection ..................................................................................................................................... 15

Product features and sales package ....................................................................................................... 16

Product and module list ........................................................................................................................... 19

Accessories .............................................................................................................................................. 19

Technical specifications .......................................................................................................................... 20

Transceiver general specifications ........................................................................................................20

RM-994 Main RF characteristics for GSM850/900/1800/1900, WCDMA I/V/VIII, LTE III/VII/XX with

Diversity phones ...................................................................................................................................21

RM-995 Main RF characteristics for GSM850/900/1800/1900, WCDMA I/II/IV/V phones, LTE

II/IV/V/XVII with Diversity phones .........................................................................................................22

RM-996 Main RF characteristics for GSM850/900/1800/1900, WCDMA I/VIII phones ..........................24

Battery endurance ................................................................................................................................26

Environmental conditions .....................................................................................................................26

List of Tables

Table 1 Audio ............................................................................................................................................. 19

Table 2 Car ................................................................................................................................................ 19

Table 3 Data .............................................................................................................................................. 20

Table 4 Power ............................................................................................................................................ 20

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General Information

Product selection

RM-994/RM-995/RM-996 are multimedia computer with capacitive touch UI and integrated GPS (A-GPS OMA SUPL)/Glonass, WLAN, Bluetooth 4.0 + EDR standard. Among them, GSM/WCDMA/LTE are supported in RM-994/RM-995 where RM-994 supports GSM850/900/1800/1900, WCDMA I/V/VIII, LTE III/VII/XX, RM-995 supports GSM850/900/1800/1900, WCDMA I/II/IV/V, LTE II/IV/V/XVII, and RM-996 supports GSM850/900/1800/1900, WCDMA I/VIII.

For WCDMA the maximum bit rate is up to 384 kbit/s for downlink and 384 kbit/s for uplink with simultaneous CS speech or CS video (max. 64 kbit/s). RM-94X series supports HSDPA + category 24 with downlink peak data rate up to 42 Mbit/s (in limited use cases), HSUPA belongs to category 6 with uplink peak data rate up to 5.76 Mbit/s (in limited use cases).

In PS/CS mode, the device supports DTM with multi slot class 11 (max. 4 RX + 3 TX, sum 5). With EGPRS this means a maximum download speed of up to 236.8 kbit/s simultaneously with speech. With GPRS this means a maximum download speed of up to 64.2 kbit/s simultaneously with speech.

In PS only mode, the device supports MSC 12, a maximum of 5 RX + 4 TX, sum 6 timeslots resulting in a maximum download speed of up to 296 kbit/s with EGPRS, and up to 107 kbit/s with GPRS.

The device has a large 5.98” (1280 x 720 pixels) X TFT HD touch display with 2D curved glass, 16 million colors and support for pinch zoom. It also has a 5 megapixel autofocus camera, 4 x digital zoom and an integrated LED flash. The device supports two-way video calls with two integrated cameras, one on the front and one on the back.

The MMS implementation follows the OMA MMS standard release 1.3. The browser is a highly advanced Internet browser also capable of viewing operator domain XHTML Mobile Profile (MP) content.

The device uses Windows Phone 8 operating system (release 8, Apollo) and supports the full Web Browser for Internet Explorer 10 with desktop rendering which brings desktop-like Web browsing experience to mobile devices.

Figure 1 View of Lumia 1320

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General Information

 Product features and sales package

Imaging

Main camera:

● Sensor: 5 megapixel

● F number/Aperture: F2.4

● Digital zoom: 4x

● Auto focus: Two-stage capture key

● Focus range: 10 cm ~ infinity

● Flash: Integrated LED flash

Front facing camera:

● Sensor: VGA (640 x 480 pixels)

● F number/Aperture: F2.8

● Fixed focus

Video:

● Video resolution: nHD 30 fps (1080p)

● Audio recording: High amplitude audio capture

● Video stabilization

● Video clip length: Max. 90 min

● Video file format: .mp4 H.264

● White balance: Automatic, sunny, cloudy, incandescent, fluorescent

● Zoom (digital): 4x

Continuous auto focus

● Touch focus

● Video recording indicator

Photo:

● Still image resolutions: 5M (4:3), 3.8M (16:9)

● Still image file format: JPEG/EXIF

● View finder: Full screen view finder

● Continuous autofocus

● Touch focus

● Auto exposure: Center weighted AE

● Image orientation: Automatic

● Exposure compensation: +2 ~ -2EV at 0.5 step

● White balance: Automatic, sunny, cloudy, incandescent, fluorescent

● Zoom (digital): Up to 4x

Edit

● On device Photo editor (manual & automatic)

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General Information

View

● 5.98” TFT HD (1280 x 720 pixels) color display, up to 16M colors

● Capacitive touch

● Corning® Gorilla® Glass (7N)

● 2D curved glass

● Alphamon sensor - a combination of ALS and proximity, ALS to optimize display brightness and power

consumption, Proximity for turning off the display when in a call for power consumption.

● Slideshow from Pictures

Share

● Share effortlessly from Pictures or after capture

● Video sharing support (WCDMAD/LTE services)

● Online Album: Image/Video uploading from Pictures

Store

● 8 GB internal memory

● 1 GB RAM

● Micro SD support up to 64 GB

● Easy to transfer and organize photos and video between your device and a compatible PC

Music

● Digital music player: Supports MPEG-4 AAC/ AAC+/ eAAC+/ MPEG-1 audio Layer3 (MP3)/ WMA Pro

9 and 10

● Synchronies music with PC application

High Dynamic Range (HDR) microphones

● Bluetooth speakers

● Integrated hands free speaker

Media

● Full-screen video playback to view downloaded, streamed or recorded video clips

● Supported video formats: MPEG-4, H.264/AVC, H.263/3GPP, WMV, AVI, MOV.

Productivity

Context management:

● Internet Explorer 10 with desktop rendering

● OMA DRM version 2.0

● OTA provisioning

Messaging:

● E-mail (SMTP, IMAP4, POP3), MMS, SMS, unified editor

Office applications:

● Viewing of email attachments – doc, .xls, .ppt, .pdf, .zip

● Mail for Exchange

● Rich HTML

● Office 15, SharePoint 15, Office 365

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General Information

PIM:

● Contacts, calendar, calculator, clock, To-do, Notes

Synchronization:

● Local/Remote (using SkyDrive)

● Data: Calendar, Contacts, E-mail, To-do list.

● PC Applications: Microsoft Outlook (98, 2000, 2002, 2003), Outlook Express

Call management:

● Call logs, speed dial, voice dialing (with SIND) and voice commands

Connectivity

● Integrated GPS (A-GPS OMA SUPL) and Glonass

● WLAN - IEEE802.11 b/g/n with 2.4GHz

● Micro USB interface with USB 2.0 high speed

● Bluetooth wireless technology 4.0 + EDR

● Nokia 3.5 mm AV connector

Additional technical specifications

● Vibrating alert

● 3GPP Rel 8/6 compliant

● Speech codecs supported: FR, EFR, HR, AMR-NB, AMR-WB

● 1.7 GHz dual core processor

● WCDMA DL 384 kbit/s, UL 384 kbit/s

● GPRS/EGPRS Class B, multi slot class 12

● Dual Transfer Mode (DTM) class A, multi slot class 11

● HSDPA up to 21.1 Mbit/s, HSUPA 5.76 Mbit/s

● LTE support CAT3 DL 100 Mbit/s, UL 50 Mbit/s

Sales package

● Transceiver RM-994/ RM-995/ RM-996

● USB charger

 RM-994 (AC-60 E/U/X/N/AR/K/A)  RM-995 (AC-60 uUSB black charger)  RM-996 (AC-50C for china)

● Music headset (WH-108)

● Connectivity cable (CA-189CD/ CA-190CD)

● Product information booklet

● Quick Start Guide

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Module name

Type code

Notes

System/RF module PWB Sub PWB module Flash flex module

3VW 3VX 3VZ

Part of CWS carrier assembly

Accessory

Type

JBL PowerUp Wireless Charging Speaker for Nokia

MD-100W

JBL PlayUp Portable Wireless Speaker for Nokia

MD-51W

Nokia Purity HD Stereo Headset

Signature headset

Nokia Purity Pro Stereo Headset

BT Stereo headset

Nokia Reaction

BT headset

Wired speaker

MD-11

Wired headsets

WH-510

WH-520

WH-530

WH-930

WH-920

WH-108

WH-208

Bluetooth stereo headsets

BH-111

BH-118

BH-221

BH-121

BH-940

Bluetooth headsets

BH-310

BH-118

BH-220

BH-907

WS-2 precious

Inductive loopset

LPS-5

Accessory

Type

Car holder

CR-123

Bluetooth car kit

CK-600

General Information

 Product and module list

 Accessories

Table 1 Audio

Table 2 Car

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Accessory

Type

Connectivity cable

CA-189CD

CA-190CD

CA-191C

Memory card

MU-37(2GB)

MU-41(4GB)

MU-43(8GB)

MU-44(16GB)

MU-45(32GB)

Accessory

Type

Charger

AC-20

AC-21C

AC-21W

DC-16

DC-18

DC-19

DC-20

DT-900

DT-910

CR-200

Fast USB charger

AC-60 / AC-50C

Battery

BV-4BWA

Unit

Dimensions (L x W x T) (mm)

Weight (g)

Volume (cm3)

Transceiver with BV-4BWA 3400mAh Li-ion battery pack

164.25 x 85.9 x 9.79mm

220

125

General Information

Table 3 Data

Table 4 Power

 Technical specifications

Transceiver general specifications

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Parameter

Unit

Cellular system

GSM850, EGSM900, GSM1800/1900, WCDMA VIII (900), WCDMA V (850), and WCDMA I (2100),LTE III(1800),LTE VII(2600),and LTE XX(800)

Main antenna

GSM850:869 - 894 MHz;

Rx frequency band

EGSM900:925 - 960 MHz

GSM1800:1805 - 1880 MHz

GSM1900:1930 - 1990 MHz

WCDMA VIII (900): 925 - 960 MHz

WCDMA V (850): 869 – 894 MHz

WCDMA I (2100): 2110 - 2170 MHz

LTE III (1800): 1805 - 1880 MHz

LTE VII(2600): 2620 - 2690 MHz

LTE XX(800): 791 - 821MHz

Diversity antenna

LTE III (1800): 1805 - 1880 MHz

Rx frequency band LTE VII(2600): 2620 - 2690 MHz

LTE XX(800): 791 - 821MHz

Main antenna

GSM850: 824 – 849 MHz

Tx frequency band

EGSM900:880 - 915 MHz

GSM1800:1710 - 1785 MHz

GSM1900:1850 - 1910 MHz

WCDMA VIII (900): 880 - 915 MHz

WCDMA V (850): 824 – 849 MHz

WCDMA I (2100): 1920 - 1980 MHz

LTE III (1800): 1710 - 1785 MHz

LTE VII(2600): 2500 - 2570 MHz

LTE XX(800): 832 - 862MHz

Output power

GSM850: +5 ...+33 dBm/3.2 mW ... 2 W

GSM900: +5 ...+33 dBm/3.2 mW ... 2 W

GSM1800: +0 … +30 dBm/1 mW … 1 W

GSM1900: +0 … +30 dBm/1 mW … 1 W

WCDMA VIII (900): -50 ... +23 dBm/0.01 μW ... 251 mW

WCDMA V (850): -50 … +23 dBm /0.01uW … 251 mW

WCDMA I (2100): -50 … +23 dBm /0.01uW … 251 mW

LTE III (1800): -40…+23 dBm/0.01uW…251mW

LTE VII(2600): -40…+23 dBm/0.01uW…251mW

LTE XX(800): -40…+23 dBm/0.01uW…251mW

EDGE output power

EDGE850: +5 … +27 dBm/3.2 mW … 501 mW

EDGE900: +5 … +27 dBm/3.2 mW … 501 mW

EDGE1800: +0 … +26 dBm/1.0 mW … 398 mW

EDGE1900: +0 … +26 dBm/1.0 mW … 398 mW

General Information

RM-994 Main RF characteristics for GSM850/900/1800/1900, WCDMA I/V/VIII, LTE III/VII/XX with Diversity phones

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Number of RF channels

GSM850: 124

GSM900: 174

GSM1800: 374

GSM1900: 299

WCDMA VIII (900): 152

WCDMA V (850): 108

WCDMA I (2100):277

LTE III (1800): 352

LTE VII(2600): 327

LTE XX(800): 127

Channel spacing 200 kHz WCDMA /GSM

15 kHz LTE

Number of Tx power levels

GSM850: 15

GSM900: 15

GSM1800: 16

GSM1900: 16

WCDMA VIII (900): 75

WCDMA V (850): 75

WCDMA I (2100):75

LTE III (1800): 65

LTE VII(2600): 65

LTE XX(800): 65

Parameter

Unit

Cellular system

GSM850, EGSM900, GSM1800/1900, WCDMA V (850), WCDMA IV (1700),WCDMA II (1900),WCDMA I (2100),LTE II(1900),LTE IV(1700),LTE V (850) and LTE XVII (700)

Main antenna

GSM850: 869 – 894 MHz

Rx frequency band

EGSM900: 925 - 960 MHz

GSM1800: 1805 - 1880 MHz

GSM1900: 1930 - 1990 MHz

WCDMA V (850): 869 – 894 MHz

WCDMA IV (1900): 2110 – 2155 MHz

WCDMA II (1900): 1930 – 1990 MHz

WCDMA I (2100): 2110 - 2170 MHz

LTE II (1900): 1930 - 1990 MHz

LTE IV(1700): 2110 - 2155 MHz

LTE V(850): 869 - 894MHz

LTE XVII(700): 734 - 746MHz

General Information

RM-995 Main RF characteristics for GSM850/900/1800/1900, WCDMA I/II/IV/V phones, LTE II/IV/V/XVII with Diversity phones

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Diversity antenna

WCDMA V (850): 869 – 894 MHz

Rx frequency band

WCDMA II (1900): 1930 – 1990 MHz

LTE II (1900): 1930 - 1990 MHz

LTE IV(1700): 2110 - 2155 MHz

LTE V(850): 869 - 894MHz

LTE XVII(700): 734 - 746MHz

Main antenna

GSM850: 824 – 849 MHz

Tx frequency band

EGSM900:880 - 915 MHz

GSM1800: 1710 - 1785 MHz

GSM1900: 1850 - 1910 MHz

WCDMA V (850): 824 – 849 MHz

WCDMA IV (1700): 1710 – 1755 MHz

WCDMA II (1900): 1850 – 1910 MHz

WCDMA I (2100): 1920 - 1980 MHz

LTE II (1900): 1850 - 1910 MHz

LTE IV(1700): 1710 - 1755 MHz

LTE V(850): 824 - 849MHz

LTE XVII(700): 704 - 716MHz

Output power

GSM850: +5 ...+33 dBm/3.2 mW ... 2 W

GSM900: +5 ...+33 dBm/3.2 mW ... 2 W

GSM1800: +0 … +30 dBm/1 mW … 1 W

GSM1900: +0 … +30 dBm/1 mW … 1 W

WCDMA V (850): -50 … +23 dBm /0.01uW … 251 mW

WCDMA IV (1700): -50 … +23 dBm /0.01uW … 251 mW

WCDMA II (1900): -50 … +23 dBm /0.01uW … 251 mW

WCDMA I (2100): -50 … +23 dBm /0.01uW … 251 mW

LTE II (1900): -40…+23 dBm/0.01uW…251mW

LTE IV(1700): -40…+23 dBm/0.01uW…251mW

LTE V(850): -40…+23 dBm/0.01uW…251mW

LTE XVII(700): -40…+23 dBm/0.01uW…251mW

EDGE output power

EDGE850: +5 … +27 dBm/3.2 mW … 501 mW

EDGE900: +5 … +27 dBm/3.2 mW … 501 mW

EDGE1800: +0 … +26 dBm/1.0 mW … 398 mW

EDGE1900: +0 … +26 dBm/1.0 mW … 398 mW

General Information

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Number of RF channels

GSM850: 124

GSM900: 174

GSM1800: 374

GSM1900: 299

WCDMA V (850): 108

WCDMA IV (1700): 202

WCDMA II (1900): 277

WCDMA I (2100):277

LTE II (1900): 277

LTE IV(1700): 202

LTE V(850): 102

LTE XVII(700): 37

Channel spacing 200 kHz WCDMA /GSM

15 kHz LTE

Number of Tx power levels

GSM850: 15

GSM900: 15

GSM1800: 16

GSM1900: 16

WCDMA V (850): 75

WCDMA IV (1700): 75

WCDMA II (1900): 75

WCDMA I (2100):75

LTE II (1900): 65

LTE IV(1700): 65

LTE V(850): 65

LTE XVII(700): 65

Parameter

Unit

Cellular system

GSM850, EGSM900, GSM1800/1900, WCDMA VIII (900), and WCDMA I (2100)

Main antenna

GSM850: 869 – 894 MHz

Rx frequency band

EGSM900:925 - 960 MHz

GSM1800:1805 - 1880 MHz

GSM1900:1930 - 1990 MHz

WCDMA VIII (900): 925 - 960 MHz

WCDMA I (2100): 2110 - 2170 MHz

Main antenna

GSM850: 824 – 849 MHz

Tx frequency band

EGSM900:880 - 915 MHz

GSM1800:1710 - 1785 MHz

GSM1900:1850 - 1910 MHz

WCDMA VIII (900): 880 - 915 MHz

WCDMA I (2100): 1920 - 1980 MHz

General Information

RM-996 Main RF characteristics for GSM850/900/1800/1900, WCDMA I/VIII phones

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Output power

GSM850: +5 ...+33 dBm/3.2 mW ... 2 W

GSM900: +5 ...+33 dBm/3.2 mW ... 2 W

GSM1800: +0 … +30 dBm/1 mW … 1 W

GSM1900: +0 … +30 dBm/1 mW … 1 W

WCDMA VIII (900): -50 ... +23 dBm/0.01 μW ... 251 mW

WCDMA I (2100): -50 … +23 dBm /0.01uW … 251 mW

EDGE output power

EDGE850: +5 … +27 dBm/3.2 mW … 501 mW

EDGE900: +5 … +27 dBm/3.2 mW … 501 mW

EDGE1800: +0 … +26 dBm/1.0 mW … 398 mW

EDGE1900: +0 … +26 dBm/1.0 mW … 398 mW

Number of RF channels

GSM850: 124

GSM900: 174

GSM1800: 374

GSM1900: 299

WCDMA VIII (900): 152

WCDMA I (2100):277

Channel spacing

200 kHz WCDMA /GSM

Number of Tx power levels

GSM850: 15

GSM900: 15

GSM1800: 16

GSM1900: 16

WCDMA VIII (900): 75

WCDMA I (2100):75

General Information

NOKIA INTERNAL USE ONLY Page 25

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Battery

Capacity(mAh)

Talk time

Stand-by

Music playback

HD video playback

BV-4BWA

3400

Up to 11.2 h (GSM) Up to 12.5 h (WCDMA)

Up to 640hrs

Up to 72hrs

Up to 7.4hrs

Environmental condition

Ambient temperature

Notes

Normal operation

0°C...+45°C

Specifications fulfilled

Reduced performance

-10°C...0°C

Operational for shorts periods only +45°C...+55°C

Intermittent operation

-40°C...-10°C

Operation not guaranteed but an attempt to operate does not damage the phone.

+55°C...+70°C

No operation or storage

<-40°C...>+73°C

No storage or operation: an attempt may damage the phone.

Charging range

-3°C...+60°C

an attempt to charge in -40°C… 0°C and +45°C…76°C does not damage the phone but charging may be disabled.

Long term storage

0°C...+45°C

General Information

 Battery endurance

 Environmental conditions

Temperature conditions

Humidity

Relative humidity range is 5...95%.

Page 26 NOKIA INTERNAL USE ONLY

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General Information

The HW module is not protected against water. Condensed or splashed water might cause malfunction. Any submersion of the phone will cause permanent damage. Long-term high humidity, with condensation, will cause permanent damage because of corrosion.

Vibration

The module should withstand the following vibrations:

• 1200rpm

• 50dB(A)max

ESD strength

Conducted discharge is 4 kV (>10 discharges) and air contact 8 kV (>10 discharges). The standard for electrostatic discharge is IEC 61000-4-2, and this device fulfills level 4 requirements.

RoHS

This device uses RoHS compliant components and lead-free soldering process.

NOKIA INTERNAL USE ONLY Page 27

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General Information

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Page 28 NOKIA INTERNAL USE ONLY

Nokia Customer Care

2 Service Tools and Service

Concepts

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Service Tools and Service Concepts

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Service Tools and Service Concepts

Table of Contents

Service tools ............................................................................................................................................. 33

Nokia Product Specific Tools ................................................................................................................33

SS-305 ........................................................................................................................................ 33

SS-298 ........................................................................................................................................ 33

General tools ........................................................................................................................................33

CA-101 ........................................................................................................................................ 33

RJ-245 ........................................................................................................................................ 33

SRT-6 ......................................................................................................................................... 34

SS-93 .......................................................................................................................................... 34

SX-4T.......................................................................................................................................... 34

Option Tools .........................................................................................................................................34

XRS-6 ......................................................................................................................................... 34

MJ-300 ................................................................................................................................ ........ 35

SS-334 ........................................................................................................................................ 35

PCS-1 ......................................................................................................................................... 35

Service concepts (Nokia) ......................................................................................................................... 36

POS (Point of Sale) flash concept ........................................................................................................36

Concept for flashing and product code change .....................................................................................37

Optional Module jig service concept 1 (Troubleshooting) ......................................................................38

Optional Module jig service concept 2 (Troubleshooting + RF Measurement) ......................................39

List of Figures

Figure 2 POS flash concept ....................................................................................................................... 36

Figure 3 BE concept for flashing and product code change ....................................................................... 37

Figure 4 BE Module jig service concept 1 .................................................................................................. 38

Figure 5 BE Module jig service concept 2 .................................................................................................. 39

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Service Tools and Service Concepts

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Page 32 NOKIA INTERNAL USE ONLY

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SS-305

Camera removal tool

0781564

The camera removal tool SS-210 is used to remove/attach the camera module from/to the socket. SS-298

RF Coaxial Cable Tool

0781548

The RF Coaxial Cable tool is used to disconnect the coaxial cable in the device.

CA-101

Micro USB cable

0730634

The CA-101 is a USB-to-micro USB data cable that allows connections between the PC and the phone.

RJ-245

Soldering jig

0781484

RJ-245 is a soldering jig used for soldering and as a rework jig for the engine module.

Service Tools and Service Concepts

 Service tools

Nokia product specific tools

The table below gives a short overview of service devices that can be used for testing error analysis, and repair of product RM-994/RM-995/RM-996. For the correct use of the service devices and the best effort of workbench setup please refer to various concepts.

General tools

The table below gives a short overview of service devices that can be used for testing, error analysis, and repair of product. For the correct use of the service devices, and the best effort of workbench setup, please refer to various concepts.

NOKIA INTERNAL USE ONLY Page 33

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SRT-6

Opening tool

0770431

SRT-6 is used to open phone covers.

Note: The SRT-6 is included in the Nokia Standard Toolkit.

SS-93

Opening tool

0780727

SS-93 is used for opening JAE connectors.

Note: The SS-93 is included in Nokia Standard Toolkit.

SX-4T

Smart card

0780392

SX-4T is a BB5 security device used to protect critical features in tuning and testing.

XRS-6

RF cable

0730231

The RF cable is used to connect, for example, a module repair jig to the RF measurement equipment.

Service Tools and Service Concepts

Optional tools

The table below gives a short overview of service devices that can be used for testing, error analysis and repair of product. For the correct use of the service devices, and the best effort of workbench setup, please refer to various concepts.

Page 34 NOKIA INTERNAL USE ONLY

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MJ-300

Module Jig

0781441

Module jig MJ-300 can be used for flashing via USB and RF, battery and system testing. The main functions are:

 Powering with external power  WLAN/BT/GPS RF-interface with probes  GSM/WCDMA RF-interfaces with probes  BSI mode selector(Tabby and Lynx interface, selected with battery

cable)

 VBATT interface (Tabby and Lynx interface, selected with battery

cable)

 SS-314 RF guide plate is required with this jig  CA-158RS cable is used together with this jig for RF testing

SS-334

RF guide plate

0781609

SS-334 is an RF guide plate used with MJ-300 module jig

PCS-1

Power cable

0730012

The PCS-1 power cable (DC) is used with a docking station, a module jig or a control unit to supply a controlled voltage

Service Tools and Service Concepts

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Type

Description

Product Specific Devices

BV-4BWA

Battery

Cables

CA-101

Micro USB cable

Service Tools and Service Concepts

 Service concepts (Nokia)

POS (Point of Sale) flash concept

Figure 2 POS flash concept

Page 36 NOKIA INTERNAL USE ONLY

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Type

Description

Product Specific Devices

BV-4BWA

Battery

Other Devices

SX-4

Smart Card

Cables

CA-101

Micro USB cable

Service Tools and Service Concepts

Concept for flashing and product code change

Figure 3 BE concept for flashing and product code change

NOKIA INTERNAL USE ONLY Page 37

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Type

Description

Product Specific Devices

MJ-300

Module Jig

SS-334

RF guide plate

Cables

CA-101

Micro USB cable

PCS-1

DC Power cable

Service Tools and Service Concepts

Optional Module jig service concept 1 (Troubleshooting)

Figure 4 BE Module jig service concept 1

Page 38 NOKIA INTERNAL USE ONLY

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Type

Description

Product Specific Devices

MJ-305

Module Jig

SS-334

RF guide plate

Cables

CA-101

Micro USB cable

PCS-1

DC Power cable

XRS-6

RF cable

Service Tools and Service Concepts

Optional Module jig service concept 2 (Troubleshooting + RF Measurement)

Figure 5 BE Module jig service concept 2

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Service Tools and Service Concepts

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Nokia Customer Care

3 BB Troubleshooting Guide

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BB Troubleshooting Guide

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BB Troubleshooting Guide

Table of Contents

Placement ................................................................................................................................................. 45

Placement – Main Board (Top side) ......................................................................................................45

Placement - Main Board (Bottom side) .................................................................................................46

Placement - D-Cover ............................................................................................................................47

Placement - A_Cover( Include TP ,LCM) ..............................................................................................48

How to power on Handset ........................................................................................................................ 49

Push Power Key ...................................................................................................................................49

Short TP11 and GND ............................................................................................................................49

Overall Troubleshooting flow .................................................................................................................. 50

General power checking troubleshooting ..............................................................................................53

Dead or jammed device troubleshooting...............................................................................................55

Clocking troubleshooting ......................................................................................................................56

USB Charging troubleshooting .............................................................................................................57

Interface Troubleshooting ........................................................................................................................ 58

USB data interface troubleshooting ......................................................................................................58

SIM card troubleshooting ......................................................................................................................59

Micro SD interface troubleshooting .......................................................................................................60

DRAM troubleshooting .........................................................................................................................61

eMMC troubleshooting .........................................................................................................................62

Display Module Troubleshooting ............................................................................................................ 63

Display Fault troubleshooting ...............................................................................................................65

Touch Panel troubleshooting ................................................................................................................66

Keyboard troubleshooting .....................................................................................................................67

Sensor Troubleshooting .......................................................................................................................... 68

Accelerometer troubleshooting .............................................................................................................68

Accelerometer troubleshooting .............................................................................................................69

Proximity sensor and ambient light sensor (ALS) .................................................................................70

ALS troubleshooting .............................................................................................................................71

Proximity troubleshooting .....................................................................................................................72

Audio Troubleshooting ................................................................ ............................................................ 73

Audio troubleshooting test instructions .................................................................................................73

External earpiece troubleshooting ........................................................................................................74

Internal Earpiece troubleshooting .........................................................................................................75

Internal Handsfree Speaker troubleshooting .........................................................................................76

Vibra Troubleshooting ...........................................................................................................................77

Connectivity Module Troubleshooting .................................................................................................... 78

Introduction to connectivity module troubleshooting .............................................................................78

BT Antenna troubleshooting .................................................................................................................80

WLAN Antenna troubleshooting ............................................................................................................81

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BB Troubleshooting Guide

GPS Antenna troubleshooting .............................................................................................................. 82

Introduction to GPS troubleshooting ..................................................................................................... 82

List of Tables

Table 5 Display module troubleshooting cases ........................................................................................... 63

Table 6 Pixel defects .................................................................................................................................. 63

Table 7 Defects table.................................................................................................................................. 64

List of Figures

Figure 6 CWR block diagram ..................................................................................................................... 78

Figure 7 LDS antenna positions ................................................................................................................. 79

Figure 8 WLAN/BT component layout ........................................................................................................ 79

Figure 9 Phone Menus->HERE Maps ........................................................................................................ 82

Figure 10 GPS Maps .................................................................................................................................. 82

Page 44 NOKIA INTERNAL USE ONLY

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uSD Socket

G-Sensor

2G/3G PA

WLNSP

WCN3660

MSM89x0 & DDR

8Gbit

P/L Sensor

CONN

REC Contact

PM8038

19.2MHz Crystal

Thermal Resistor

48MHz Crystal

MIC

LTE PA

Front Camera

LTE PA

27MHz Crystal

BB Troubleshooting Guide

 Placement

Placement – Main Board (Top side)

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Diversity CONN

Diversity SPR

CONN

Volume Up

Volume Down

Power Key

Camera Key

Main Antenna

SPR CONN

Speaker

Contact

Vibrator Contact

USB Connector

Display

Connector

Battery

Connector

SIM

Socket

BT/Wi-Fi/GPS

SPR CONN

BT/Wi-Fi/GPS

CONN

Audio Jack

Touch CONN

8G eMMC

2G/3G CONN

Flash LED

contact

5MP Camera

BB Troubleshooting Guide

Placement - Main Board (Bottom side)

Page 46 NOKIA INTERNAL USE ONLY

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BT/Wi-Fi/GPS

Antenna

Vibrator

Speaker

Main Antenna

Flash LED

Diversity

Antenna

BB Troubleshooting Guide

D-Cover

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Touch Panel

FPC

Receiver

Volume Up

Power Key

Camera Key

Volume Down

Coaxial Cable

Side Key FPC

LCM FPC

P-Sensor

BB Troubleshooting Guide

A_COVER (Include Touch Panel, LCM)



Page 48 NOKIA INTERNAL USE ONLY

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Press power key for 5 sec

Short TP11 and GND together at least 5sec

BB Troubleshooting Guide

How to power on Handset

1. Push power key

2. Short TP11 and GND.

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BB Troubleshooting Guide

Overall Troubleshooting flow

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BB Troubleshooting Guide

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BB Troubleshooting Guide

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BB Troubleshooting Guide

General power checking troubleshooting

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BB Troubleshooting Guide

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BB Troubleshooting Guide

Dead or jammed device troubleshooting

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BB Troubleshooting Guide

Clocking troubleshooting

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BB Troubleshooting Guide

USB charging troubleshooting

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BB Troubleshooting Guide

 Interface troubleshooting

USB data interface troubleshooting

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BB Troubleshooting Guide

SIM card troubleshooting

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BB Troubleshooting Guide

MicroSD interface troubleshooting

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BB Troubleshooting Guide

DRAM troubleshooting

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BB Troubleshooting Guide

eMMC troubleshooting

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Display blank

there is no image on the display. The display looks the same when the phone is on as it does when the phone is off.

Image on the display not correct

Image on the display can be corrupted or a part of the image can be missing. If a part of the image is missing, change the display module. If the image is otherwise corrupted, follow the appropriate troubleshooting diagram.

Visual defects (pixel)

Pixel defects can be checked by controlling the display with service software. Use both colors, black and white, on a full screen. R, G, B are also helpful.

The display may have some random pixel defects that are acceptable for this type of display. The criteria when pixel defects are regarded as a display failure, resulting in a replacement of the display, are presented in the following table.

Bright sub-pixels

(sometimes called on-pixels or stuck-on) are characterized by the appearance of bright/colored pixels in, for example, black full screen picture.

Dark sub-pixels

(sometimes called off-pixels, stuck-off, or black pixels) are characterized by the appearance of dark pixels in white, red, green, or blue full-screen picture.

Combined sub-pixel

defects are characterized by at least two sub-pixels defects (bright or dim) being closer than 5 mm to each other.

BB Troubleshooting Guide

 Display module troubleshooting

General instructions for display troubleshooting

The first step is to verify with a working display that the fault is not on the display module itself. The display module cannot be repaired.

Note: Always use the display with the phone's window while checking the display’s visual

functionality.

The second step is to check that the engine is working normally. This can be done by connecting the phone to a docking station and starting service software. With the help of service software read the phone information to check that also the application engine is functioning normally (you should be able to read the APE ID).

After these checks proceed to the display troubleshooting flowcharts, Use the Care Suite to find the detailed fault mode.

Pixel defects

Table 5 Display module troubleshooting cases

Table 6 Pixel defects

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Temporal sub-pixels

(sometimes called blinking defects) exhibit temporal variations not related to any steady-state video input. Temporal sub-pixel defects may be intermittent, exhibit a sudden change of state, or be flickering.

BB Troubleshooting Guide

Table 7 Defects table

Note: Blinking pixels are not allowed in normal operating temperatures and light conditions.

Introduction to display troubleshooting

The display module used is based on IPS technology and supports display format of 720 columns x 1280 rows. The dimension of the display module only is 77.68 mm x 140.64 mm x 1.57 mm. The display is connected to MSM8930/ 8230 with a 4-lane MIPI DSI.

Page 64 NOKIA INTERNAL USE ONLY

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Display Fault

troubleshooting

Press and hold Volume

Down Key and Power

Key for 12 sec.

Yes

Fail

No

Fail

Yes

Phone has vibration?

Replace Display Change Main PWBFail

Pass

End

Charge the phone about

10min, the battery icon

should appear or after

charging 15~20min, you can

then power on the phone,

and try entering the OS.

Pass

Go to dead or

jammed device

troubleshooting

Fail

Pass

Run“Display test”in Care

Suite

Check J2401 is dirty? Or

J2401 has damage on

appearance?

Check C2411.1/C2412.1 are

5.4V/-5.4V?

Clear J2401 if is it dirty,

Replace J2401 if it is damaged

If not, change chip U2401

and inductor L2401 if there is

crack on appearance.

Fail

Pass

BB Troubleshooting Guide

Display fault troubleshooting

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BB Troubleshooting Guide

Touch panel troubleshooting

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BB Troubleshooting Guide

Keyboard troubleshooting

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BB Troubleshooting Guide

 Sensors troubleshooting

Accelerometer troubleshooting

Page 68 NOKIA INTERNAL USE ONLY

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Phone E-compass sensor

does not work

Run Magnetic compass

In Care Suite

“Magnetic compass Test”

If this is single axis dysfunction

Measure

Vreg_L9_2V85 from

C3609. Is voltage

2.85V?

Checking the relative power circuit about

VREG_L9_2V85

No

Resolder/Replace a new E-compass

Sensor U3602

Measure

VREG_LVS2_1V8 from

C3608 is voltage 1.8V

YES

No any response

Checking the relative power circuit about

VREG_LVS2_1P8

No

Is I2C I/F ok?

YES

Also Check I2C of P/L Sensor And find out which is broken

No

YES

Change Main board

No

BB Troubleshooting Guide

Magnetic compass troubleshooting

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BB Troubleshooting Guide

Proximity sensor and ambient light sensor (ALS)

This phone uses a combined proximity and ambient light sensor called Alphamon. The proximity sensor is integrated to the module and uses an internal LED supplied by VPH_PWR. The current this LED consumes is controlled by Alphamon and set using software. The interrupt output of Alphamon changes state when the infra-red light from the LED is reflected back by a suitable reflective surface. The ambient light sensor detects the level of ambient light and adjusts the display brightness accordingly whenever the display is active.

Covering this sensor results in dimmed display lights. Use service software to verify that ALS works. Use a finger to hide the Alphamon sensor window, the light

intensity in mLux changes.

Note: The light intensity could vary depending on how the finger hides the Alphamon window.

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Phone ALS

does not work

Run ALS In Care Suite “Als Test”

Use finger to touch the window of

Light sensor& proximity sensor

Is the light

intensity change ?

Measure Vreg_L9_2V85 from C3606 and C3610.

Is voltage 2.85V?

Change Main PWB

Is I2C I/F ok?

Yes

Fail

Pass

Try to re-assemble the

MB on A-Cover and

make sure the screws

are tightened on the MB

Fail

Change J3601

Fail

Change Sensor

sub-board on A-

cover

Pass

End

No

Check same I2C bus

component Accelerometer

and E-compass is fail? Find

out which is broken

Go to Accelerometer

and E0compass

trouble shooting

Fail

BB Troubleshooting Guide

ALS troubleshooting

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Phone Proximity

does not work

Run Proximity In Care

Suite”Proximity Sensor Test”

Use finger to touch the window of

Light sensor& proximity sensor

Is self-test pass?

Measure Vreg_L9_2V85 from C3606 and C3610.

Is voltage 2.85V?

Change Main PWB

Is I2C I/F ok?

Yes

Fail

Pass

Try to re-assemble the

MB on A-Cover and

make sure the screws

are tightened on the MB

Fail

Change J3601

Fail

Change Sensor

sub-board on A-

cover

Pass

End

No

Check same I2C bus

component Accelerometer

and E-compass is fail? Find

out which is broken

Go to Accelerometer

and E0compass

trouble shooting

Fail

BB Troubleshooting Guide

Proximity troubleshooting

Page 72 NOKIA INTERNAL USE ONLY

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BB Troubleshooting Guide

 Audio troubleshooting

Audio troubleshooting test instructions

Single-ended external earpiece and differential internal earpiece outputs can be measured either with a single-ended or a differential probe.

When measuring with a single-ended probe, each output is measured against the ground. When measuring against the ground, two separate single-end probes are needed.

Internal handsfree output is measured using a current probe, if a special low-pass filter designed for measuring a digital amplifier is not available. Note also that when using a current probe, the input signal frequency must be set to 2 kHz.

The input signal for each loop test can be either single-ended or differential. Exception to this is a digital microphone which needs input signal from an external sound source (laptop speaker) to playback, e.g. 1 kHz sine wave from 5 cm distance.

Required equipment

The following equipment is needed for the tests:

● Oscilloscope

● Function generator (sine waveform)

● Current probe (Internal handsfree DPMA output measurement)

● Service software

● Battery voltage 3.7V

● Sound source (laptop speaker or B&K type 4231 calibrator)

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BB Troubleshooting Guide

External earpiece troubleshooting Troubleshooting flow

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BB Troubleshooting Guide

Internal earpiece troubleshooting Troubleshooting flow

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BB Troubleshooting Guide

Internal Handsfree (IHF) speaker troubleshooting Troubleshooting flow

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BB Troubleshooting Guide

Vibra troubleshooting Troubleshooting flow

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BB Troubleshooting Guide

 Connectivity module troubleshooting

Introduction to connectivity module troubleshooting

The WCN3660 module supports WLAN and BT. REFCLK_I single ended 48 MHz analog clock from an external crystal (Y3300) is provided to WCN3660.

The clock request for the reference clock in the WCN3660 module is shared between WLAN and BT blocks. When either system requires a clock, this signal will be active. The CLK_REQ is connected to LDO of 48 MHz crystal. The SLEEPCLK input of 32.768 KHz clock from EM ASIC (PMIC 8038) is used for power management. The internal SMPS supplies the whole WCN3660 solution from the phone battery supply, VBAT, apart from VIO which is needed for interface signal reference levels.

Baseband part of the connectivity functions is integrated into MSM8930/8230. The following figure shows a top level block diagram of the WCN3660 module.

Figure 6 CWR block diagram

Page 78 NOKIA INTERNAL USE ONLY

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BT/WLAN/GPS Antenna

BB Troubleshooting Guide

WLAN/BT antenna

The WLAN/BT antenna is laser deposited on a plastic carrier which is part of the CWS carrier assembly on the top back side of the phone. The antenna radiator is painted black and is visible only around contact areas. The WLAN/BT signal is routed from the connectivity module through the RF diplexer.

The antenna positions are presented in the following figure.

Figure 7 LDS antenna positions

Figure 8 WLAN/BT component layout

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BB Troubleshooting Guide

Bluetooth troubleshooting Troubleshooting flow

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BB Troubleshooting Guide

WLAN troubleshooting Troubleshooting flow

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BB Troubleshooting Guide

GPS troubleshooting Introduction to GPS troubleshooting

Use the phone Menu —> HERE Maps to check GPS.

Figure 9 Phone Menus->HERE Maps

Figure 10 GPS Maps

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BB Troubleshooting Guide

Troubleshooting flow

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BB Troubleshooting Guide

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Nokia Customer Care

4 RF Troubleshooting Guide

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RF Troubleshooting Guide

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RF Troubleshooting Guide

Table of Contents

General instructions for cellular RF troubleshooting ............................................................................ 89

RF key components ................................................................................................................................. 90

Cellular RF main troubleshooting ........................................................................................................... 95

RF tuning and testing ............................................................................................................................... 96

Antenna ..................................................................................................................................................... 96

Antenna overview .................................................................................................................................96

Antenna troubleshooting .......................................................................................................................98

GPS/WLAN/BT antenna troubleshooting ............................................................................................ 100

List of Figures

Figure 11 RF key components and antenna contacts, Top side ................................................................. 90

Figure 12 RF key components and antenna contacts, Bottom side ........................................................... 90

Figure 13 RF key components and antenna contacts, Bottom side ........................................................... 91

Figure 14 CWS antenna positions ............................................................................................................. 97

Figure 15 Main antenna position................................................................................................................ 98

Figure 16 LDS antenna contact clip ........................................................................................................... 99

Figure 17 Main antenna contact cli ............................................................................................................ 99

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RF Troubleshooting Guide

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RF Troubleshooting Guide

 General instructions for cellular RF troubleshooting

Most RF semiconductors are static sensitive

ESD protection must be applied during repair (ground straps and ESD soldering irons).

Measuring equipment

All measurements should be done using Rohde & Schwarz CMW-500 (CMU-200 support under development) radio communication tester.

Note: A mobile phone WCDMA transmitter should never be tested with full TX power (permitted only

if measurements and tests are performed in an RF-shielded environment). Even low power WCDMA transmitters may disturb nearby WCDMA networks and cause problems to 3G cellular communication in a wide area.

Note: All measurements with an RF coupler should be performed in an RF-shielded environment

because nearby base stations can disturb sensitive receiver measurements. If there is no possibility to use an RF-shielded environment, testing at frequencies of nearby base stations should be avoided.

Note: All communication test set screen dumps are from CMU-200. Other testers are different.

RF shield cans

All RF shield cans are solid and should not be opened in service centers.

Level of repair

The scope of this guideline is to verify functionality of the cellular RF block as well as possible without removing RF shields.

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GPS FE

RF Troubleshooting Guide

 RF key components

Figure 11 RF key components and antenna contacts, Top side

Figure 12 RF key components and antenna contacts, Bottom side

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RF Troubleshooting Guide

Figure 13 RF key components and antenna contacts, Bottom side

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RF Troubleshooting Guide

RF Part

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48MHz Crystal

BT/WLAN IC (WCN3660)

BT/WLAN SAW

BT/WLAN Part

RF Troubleshooting Guide

GPS Part

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RF Troubleshooting Guide

RF FE Part

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Replace spring S400,S401,S402,

RF Troubleshooting Guide

 Cellular RF main troubleshooting

Context

Always start the cellular RF related troubleshooting procedure by following the diagram below.

Troubleshooting flow — Page 1 of 2

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RF Troubleshooting Guide

Troubleshooting flow — Page 2 of 2

 RF tuning and testing

RF tuning and testing section will be updated when the WP8 Testing Tool for Care is available.

 Antenna

Antenna overview

The phone has five different antennas:

● The main antenna is placed at the bottom of the phone

● A MIMO/diversity antenna is placed on the top left side of the phone

● A GPS/WLAN/BT antenna is placed on the top right side of the phone

The main antenna covers 4 GSM bands (GSM850, GSM900, GSM1800, and GSM1900), WCDMA bands (WCDMA B1, WCDMA B2, WCDMA B4, and WCDMA B5,WCDMA B8) and LTE bands(LTE B2,LTE B3, LTE B4, LTE B5,LTE B7 ,LTE B17 and LTE B20), and has 2 connection. The antenna radiator is deposited on a plastic carrier with LDS technology and connected to the board through C-clips. A diplexer is used for dividing HB and LB due to antenna structure.

The diversity antenna covers WCDMA bands (WCDMA B2 and WCDMA B5) and LTE bands (LTE B2, LTE B3, LTE B4, LTE B5, LTE B7, LTE B17, and LTE B20). The antenna has one feed contact and one ground contact. The antenna radiator is deposited on a plastic carrier with LDS technology and connected to the board through standard C-clips.

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BT/WLAN/GPS

Antenna

Diversity

Antenna

RF Troubleshooting Guide

The GPS/WLAN/BT antenna covers GPS/WLAN/BT bands. The antenna radiator is deposited on a plastic carrier with LDS technology and connected to the board through a standard C-clip.

Figure 14 CWS antenna positions

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Main

Antenna

RF Troubleshooting Guide

Figure 15 Main antenna position

Antenna troubleshooting

All antennas are painted and therefore the radiators are visible only around contact areas. Check the areas where the springs touch the radiator for mechanical damage. If the antenna, LDS radiator of the feed pad on antenna looks obviously damaged, replace the entire antenna assembly. If replacing the antenna assembly does not correct the problem, check for further mechanical damage and repair.

The antennas and PWB are connected by spring. Inspect the PWB for damage to any of the antenna and spring, if the spring are missing or are obviously damaged (i.e. deformed), the clips must be replaced with new ones.

If corrosion is present on the PWB or the antenna contact areas are corroded, most likely the PWB and/or the phone need to be replaced. If the antenna contact areas are obstructed or covered, the contact areas should be cleaned or the entire antenna assembly replaced.

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Diversity Antenna Contact Spring

Main Antenna

Coaxial Cable

Sub Board

side

Main Antenna

Contact Spring

Diversity Antenna

Contact Spring

Main Antenna Coaxial Cable

Main Board

side

GPS/WLAN/

BT Contact

Spring

RF Troubleshooting Guide

Figure 16 LDS antenna contact clip

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Figure 17 Main antenna contact cli

Nokia Lumia 1320 Schematics

Specifications and Main Features

Frequently Asked Questions

User Manual