Samsung SGH-T619 service manual.pdf

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GSM TELEPHONE
SGH-T619
GSM TELEPHONE
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CONTENTS
Safety Precautions
Specification
Product Function
Array course control
Exploded View/Disassembly
and Assembly Instructions
MAIN Electrical Parts List
Block Diagrams
PCB Diagrams
Flow Chart of Troubleshooting
Reference data
This Service Manual is a property of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.
ⓒ
Samsung Electronics Co.,Ltd.
Code No.:
G H 68 - 1 2 3 45 A
2006. 08. Rev.1.0
CONTENTS
1. Safety Precautions
1-1. Repair Precaution...........................................................................1-1
1-2. ESD(Electrostatically Sensitive Devices) Precaution...........................1-2
2. Specification
2-1. GSM General Specification..............................................................2-1
2-2. GSM Tx Power Class......................................................................2-2
3. Product Function
4. Array course control
4-1. Downloading Binary Files................................................................4-2
4-2. Pre-requsite for Downloading..........................................................4-2
4-3. S/W Downloader Program...............................................................4-3
5. Exploded View/Disassembly & Assembly Instructions
5-1. Cellular phone Exploded View.........................................................5-1
5-2. Cellular phone Parts list.................................................................5-2
5-3. Disassembly & Assembly Instructions..............................................5-4
6. MAIN Electrical Parts List
7. Block Diagrams
7-1. RF Solution Block Diagram.............................................................7-1
7-2. Base Band Solution Block Diagram..................................................7-2
7-3. Audio Block...................................................................................7-3
7-4. Camera Block................................................................................7-4
8. PCB Diagrams
CONTENTS
9. Flow Chart of Troubleshooting
9-1. Pown on.......................................................................................9-1
9-2. Initial............................................................................................9-3
9-3. Charging Part................................................................................9-5
9-4. SIM Part.......................................................................................9-6
9-5. Microphone Part.............................................................................9-8
9-6. Speaker Part...............................................................................9-10
9-7. Key Data Input............................................................................9-12
9-8. Receiver Part...............................................................................9-14
9-9. Back Light...................................................................................9-16
9-10. Key Back Light...........................................................................9-18
9-11. Camera Part..............................................................................9-20
9-12. GSM850 Reciever.......................................................................9-23
9-13. GSM850 Transmitter...................................................................9-24
9-14. GSM900 Reciever.......................................................................9-25
9-15. GSM900 Transmitter...................................................................9-26
9-16. DCS Receiver.............................................................................9-27
9-17. DCS Transmitter.........................................................................9-28
9-18. PCS Receiver.............................................................................9-29
9-19. PCS Transmitter.........................................................................9-30
10. Reference data
1.
Safety Precautions
1-1. Repair Precaution
● Repair in Shield Box, during detailed tuning.
Take specially care of tuning or test,
because specipicty of cellular phone is sensitive for surrounding interference(RF noise).
● Be careful to use a kind of magnetic object or tool,
because performance of parts is damaged by the influence of magnetic force.
● Surely use a standard screwdriver when you disassemble this product,
otherwise screw will be worn away.
● Use a thicken twisted wire when you measure level.
A thicken twisted wire has low resistance, therefore error of measurement is few.
● Repair after separate Test Pack and Set because for short danger (for example an
overcurrent and furious flames of parts etc) when you repair board in condition of
connecting Test Pack and tuning on.
● Take specially care of soldering, because Land of PCB is small and weak in heat.
● Surely tune on/off while using AC power plug, because a repair of battery charger is
dangerous when tuning ON/OFF PBA and Connector after disassembling charger.
● Don't use as you pleases after change other material than replacement registered on SEC System.
Otherwise engineer in charge isn't charged with problem that you don't keep this rules.
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SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization

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