FLY ds104d Service Manual
FLY SERVICE SUPPORT
SERVICE MANUAL
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FLY SERVICE SUPPORT
TABLE OF CONTENTS
INTRODUCTION………………………………………………………………………2
Chapter 1 EXPLODED VIEW AND COMPONENT DISPOSAL…………………3
EXPLODED DIAGRAM…………………………………………………………….3
DISASSEMBLY AND ASSEMBLY ………………………………………………………..4
SERVICE TOOLS…………………………………………………………………….4
DISASSEMBLE……………………………………………………………………….6
ASSEMBLY……………………………………………………………………………7
Chapter 2 ACTUALL BOARD……………………………………………………….10
SIDE A…………….…………………………………………..……………………………….16
SIDE B……………………….………………………………………………………………...16
Chapter 3 CIRCUIT INTRODUCTION………………………………………………11
Chapter 4 TROUBLESHOOTING……..………………………………………..…..27
Chapter 5 UPGRADE SOFTWARE INTRODUCTION…………..……………….34
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INTRODUCTION
The purpose of this document is to help service workshop technicians to service products.
This service manual must be used only by authorized service suppliers. The content of it
is confidential. Please note that provides other guidance documents for service suppliers.
Follow these regularly and comply with the given instructions. while every effort has been
made to ensure the accuracy of this document, some errors may exist. please keep in mind
also that this documentation is continuously being updated and modified, so always watch
out for the newest version.
CAUTIONS
Please refer to the phone’s user’s guide for instructions relating to operation, care,
and maintenance, which include important safety information.
1. Servicing and alignment must be undertaken by qualified personnel only.
2. Ensure all work is carried out at an anti-static workstation and that an anti-static
wrist strap is worn.
3. Use only approved components as specified in the parts list.
4. Ensure all components, modules, screws, and insulators are correctly re-fitted after
servicing and alignment
5. Ensure all cables and wires are repositioned correctly
Electrostatic discharge can easily damage the sensitive components of electronic
products. Therefore, every service supplier must observe the precautions which mentioned
above.
GENERAL REPAIR INFORMATION
1. Make sure your testing equipment is functioning properly before beginning repair work.
2. before starting repairs you must observe ESD precautions such as being in your ESD
protected area and connecting your wristband.
3. use gloves to avoid corrosion and fingerprints.
4. cover windows and displays with a protective film to avoid dust and scratches.
5. use a lint-free cloth to clean the LCD.
6. when cleaning the pads use a soft cloth\ESD brush and isopropanol. Do not use a glass
fiber pencil: this scratches the surface and will corrosion.
7. non-faulty mechanical parts(except shielding lids and bent parts or soldered components).
May be reused if they are not soldered.
8. when removing the shielding lids make sure to replace them with new ones, otherwise
the high-frequency leakage can affect the device.
9. always use the original spare parts.
10. check the soldering joints of the parts concerned with regard to the fault symptom.
And resolder them if necessary.
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11. remove excess soldering flux after repair.
12. observe the torque requirements when assembling the unit.
13. please aware that some malfunctions may be software related and solved by an update
Chapter 1
EXPLODED VIEW AND COMPONENT DISPOSAL
1.1 EXPLODED
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1.2 DISASSEMBLY AND ASSEMBLY
1.2.1 SERVICE TOOLS
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Spreadtrum plant
tin plate
Solder wire, soldering paste Wrist grounding strap, Antistatic gloves
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1.2.2 DISASSEMBLY
The whole machine positive On the back of the machine
Take the battery Screw down the
Down the side shell The split pan
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1.2.3 Assembly
The main board Take the mainboar
The loading pan With shell of
Play screw Equipped with batteries
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Press the power button is switched on
Assemble battery cover
1.24 Motherboard welding figure
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1.25 Main components logo figure
Chapter 2
ACTUALL BOARD
SIDE A AND B
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Chapter 3 Electric introduction
3.1 Main CPU introduction
3.1.1 Baseband-A
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