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
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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
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES

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SGH-E810 Flow Chart of Troubleshooting
2-2
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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
NO
NO
NO
NO
YES
YES
YES
YES
YES
NO
NO
NO
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
NO
NO
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
NO
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
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
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
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
1K
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
VCCA
ZD200
R239
68K
VCCD
ZD203
1
23
4
L201
0
R242
39PF
ZD204
C260
33PF
NC
C244
470nF
4
5
6
7
C228
CN201
2
3
C259
1NF
C257
1NF
C252
C234
NC
R232
10K
1UF
C249
C253
39PF
C241
5.6PF
C256
33UF
6.3V
51K
R233
56K,1%
R244
R238
10K
R235
680
Q200
23
1
1K
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?
NO
NO
Pin#3 of OSC500 is 25MHz?
NO
Pin #10 of U500 = 2.8V?
Check
U503
END
YES
YES
YES
YES
Pin#1 of OSC500 = High?
NO
Pin #2 of U500 = High?
YES
Check the U500
Check
U304
NO
NO
Pin#1 of CN502 is High? Check solder status of
R500, C502
Replace the OSC500
YES