Samsung SGH-E810 User manual

GSM TELEPHONE

SGH-E810

GSM TELEPHONE CONTENTS

1. Specification

2. Flow Chart of Troubleshooting

3. Exploded Views and Parts List

4. Electrical Parts List

5. Block Diagrams

6. PCB Diagrams

SERVICE

Manual

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1. SGH-E810 Specification

This Document can not be used without Samsung's authorization

1-1

GSM900

Phase 1 EGSM900

Phase 2 DCS1800

Phase 1

Freq. Band[MHz]

Uplink/Downlink

890~915

935~960

880~915

925~960

1710~1785

1805~1880

ARFCN Range 1~124 0~124 &

975~1023 512~885

Tx/Rx Spacing 45MHz 45MHz 95MHz

Mod. Bit Rate/

Bit Period

270.833KHz

3.692us

270.833KHz

3.692us

270.833KHz

3.692us

Time Slot Period

/Frame Period

576.9us

4.615ms

576.9us

4.615ms

576.9us

4.615ms

Modulation 0.3GMSK 0.3GMSK 0.3GMSK

MS Power 33dBm~13dBm 33dBm~13dBm 33dBm~13dBm

Power Class 5pcl~15pcl 5pcl~19pcl 0pcl~15pcl

Sensitivity -102dBm -102dBm -100dBm

TDMA Mux 8 8 8

Cell Ridius 35Km 35Km 2Km

1. GSM General Specification

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SGH-E810 Specification

1-2

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2. GSM TX power class

TX Power

Control Level GSM900

533±2dBm

629±2dBm

727±2dBm

825±2dBm

923±2dBm

10 21±2dBm

11 19±2dBm

12 17±2dBm

13 15±2dBm

14 13±2dBm

15 11±2dBm

16 9±3dBm

17 7±3dBm

18 5±3dBm

19 3±3dBm

TX Power

Control Level DCS1800

030±3dBm

128±3dBm

226±3dBm

324±3dBm

422±3dBm

520±3dBm

618±3dBm

716±3dBm

814±3dBm

912±4dBm

10 10±4dBm

11 8±4dBm

12 6±4dBm

13 4±4dBm

14 2±5dBm

15 0±5dBm

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2. SGH-E810 Flow Chart of Troubleshooting

2-1

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1. Power ON

'Power ON' Does not work

Check the current consumption

Current consumption

≥100mA ?

Check the V bat. voltage

Down load again

Voltage ≥ 3.3V ?

Check the pin of U100

pin #11 ≥ 2.8V ?

Pin #9=1.8V?

Check the Initial operation

END

pin #39 and #33 = 2.8V

Charge the Battery

Check the clock generation

circuit (OSC400, U405 pin#4)

Check the clock signal

at pin #3 of OSC400

Freq.=13MHz,Vrms 300mV

Check U100 and C113

Check U100 and C114

YES

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SGH-E810 Flow Chart of Troubleshooting

2-2

This Document can not be used without Samsung's authorization

2. System Initial

The pin #9 of U100 = 1.8V

and pin #11 of U100=2.8V?

Initial Failure

Is the pin #19 of U100

" Low --> High" ?

There is 32.768KHz wave

form at the C327, C328 ?

Is the pin #25 of U100

is High ?

The voltage is "High"

at the C107,C109,C110 ?

LCD Display OK ?

Sound operation OK ?

END

Check the U304

Check the U300

Check the U100

Check the LCD part

Check the Audio part

YES

Check the U100

(If it has some problem,

it has to be replaced.)

Check the U100

(If it has some problem,

it has to be replaced.)

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SGH-E810 Flow Chart of Troubleshooting

2-3

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3. SIM Part

Is there any signal

pin #52,53,54 of U100 ? Check the U304

"Insert SIM" is displayed on the LCD

END

Check the SIM Card

YES

Is there any signal

pin #1,2,3,6 of CN100 ? Check the U100

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SGH-E810 Flow Chart of Troubleshooting

2-4

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4. Microphone Part

Micro-phone does not work

Is the assembled status of

Microphone O.K?

YES

Reassemble the microphone

Check the DC bias voltage on

Mic path.

The voltage of C246 is

2.2V±10%?

NO Solder the microphone again

or Replace

C233,C246,R232,R233,R235

Is microphone OK? NO Check U300

END

YES

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SGH-E810 Flow Chart of Troubleshooting

2-5

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5. Speaker Part

Is the terminal of speaker

is O.K?

NO Replace the speaker

Are there any signal

at the pin #1,3 of CN503?

NO Check the SPK module

& Replace CN503

There is no sound from speaker

YES

Thetypeofsoundfrom

the speaker is Melody?

YES NO

Are there any signal

at the pin #5,7 of U201?

Are there any signal

at the pin #3,9 of U201?

Check

U201,

U304

NO NO

Pin #4 of U201

is Low?

Pin #4 of U201

is High?

Check U200 Check U300

NO NO

YES YES

YES

END

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SGH-E810 Flow Chart of Troubleshooting

2-6

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JACK_IN

EAR_SPK_P

AUDIO

EAR_SPK_N

EAR_MIC_P

EAR_MIC_N

4.7K

R237

C240

47PF

ZD201

C250

33UF

6.3V

39PF

R236

100K

C254

33PF

C261

C236

1NF

R241

C262

39PFC263

39PF

39PFC264

VCCA

L200

100nH

U202

ICEBERG-FPCB

1UF

C233

82PF

ZD202

R240

82K,1%

C251

C255

180PF

33UF

C246

47PF

2.7K

R231

C242

L203

100nH

L202

100nH

R228

VCCA

680

C258

1NF

33UF

C248

470nF

C232

6.3V

100nH

L204

VCCA

ZD200

R239

68K

VCCD

ZD203

L201

R242

39PF

ZD204

C260

33PF

C244

470nF

C228

CN201

C259

1NF

C257

1NF

C252

C234

R232

10K

1UF

C249

C253

39PF

C241

5.6PF

C256

33UF

6.3V

51K

R233

56K,1%

R244

R238

10K

R235

680

Q200

R243

MIC+

JACK_IN

EAR_SWITCH

MICIN

MICOUT

AUXIN

AUXOUTAOUTBP

AOUTBN

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SGH-E810 Flow Chart of Troubleshooting

2-7

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6. Camera Part

Camera function does not work

Check the connect CN502?

NO Connect the CN502

Pin #9 of U500 = 2.8V?

Pin#3 of OSC500 is 25MHz?

Pin #10 of U500 = 2.8V?

Check

U503

END

YES

Pin#1 of OSC500 = High?

Pin #2 of U500 = High?

YES

Check the U500

Check

U304

Pin#1 of CN502 is High? Check solder status of

R500, C502

Replace the OSC500

YES

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