Samsung SGH E590 Support Question
Samsung SGH E590 Support Question
Find answers below for this question about Samsung SGH E590 - Cell Phone 70 MB.Need a Samsung SGH E590 manual? We have 1 online manual for this item!
Question posted by valencia123 on March 9th, 2018
Limited Signal
the phone is working, my sim card is working, but the phone says taht it has limited signal
Current Answers
Related Samsung SGH E590 Manual Pages
Service Manual - Page 1
MAIN Electrical Parts List 7. Reference data PCB Diagrams 9. Operation Instruction and
Installation 4. Array course control 5. Specification 3. Block Diagrams 8. GSM TELEPHONE
SGH-E590
GSM TELEPHONE
CONTENTS
1. Exploded View/Disassembly
and Assembly Instructions 6. Flow Chart of Troubleshooting 10. Safety Precautions 2.
Service Manual - Page 3
Take specially care of tuning or test, because specipicty of cellular phone is sensitive for example an overcurrent and furious flames of parts etc) when you repair board in condition of connecting Test Pack and tuning on.
&#...
Service Manual - Page 5
....9us 4.615ms
576.9us 4.615ms
Modulation
0.3GMSK
0.3GMSK
0.3GMSK
0.3GMSK
MS Power
33dBm~5dBm 33dBm~5dBm 30dBm~0dBm 30dBm~0dBm
Power Class Sensitivity TDMA Mux Cell Radius
5pcl ~ 19pcl -102dBm 8 35Km
5pcl ~ 19pcl -102dBm 8 35Km
0pcl ~ 15pcl -100dBm 8 2Km
0pcl ~ 15pcl -100dBm 8 -
2-1
SAMSUNG Proprietary-Contents may change without notice
This Document...
Service Manual - Page 12
Select the connected serial port and the rate of speed 2. Pre-requsite for Downloading • Downloader Program(Spansion Downloader v0.3 For PNX5230.exe) • E590 Mobile Phone • Data Cable • Binary file, TFS file 4-2-2. if all the files wanted, check 'BIN+TFS'
1
2
4-2 SAMSUNG Proprietary-Contents may change without notice
This Document ...
Service Manual - Page 15
5. Exploded View/Disassembly&Assembly Instructions
5-1. Cellular phone Exploded View
QMW02 QFR01
QGI12
QME01
QCR05 QAR01 QLC01 QCR47 QMP01
QSH01
QCA01 QSP02
QMI03 QMI01
QKP01
QBR04 QJK05
QCK02 QCK01 QCK03
QAN02
QRE01
QCR54 ...
Service Manual - Page 16
Cellular phone Parts list
Design LOC QAN02 QAR01 QBA00 QBA01 QBR04 QCA01 QCH04 QCH05 QCK01 QCK02 QCK03 QCR05 QCR47 QCR54 QCR76 QFR01 QGI12 QIF01 QJK01 QKP01 QLC01 ...
Service Manual - Page 28
...,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-TA,CHIP C-TA,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP CONNECTOR-COAXIAL CONNECTOR-CARD EDGE CONNECTOR-CARD EDGE SOCKET-INTERFACE HEADER-BATTERY HEADER-BOARD TO BOARD HEADER-BOARD TO BOARD DIODE-TVS DIODE-TVS DIODE-TVS DIODE-TVS DIODE-TVS DIODE...
Service Manual - Page 35
...
PPCCF 5F251 32E3L01
BB INTERFACE Serial Data Interface
I/O Interface
A/D Interface
RF INTERFACE
AFC
RAMP
Li-Ion Battery (Slim,Standard)
PMU
Charging Circuit
RTC_CLOCK (32.768KHz)
SIM CARD
7-3
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Block Diagrams
Battery Type
Battery Voltage Battery Temperature
D1VDD...
Service Manual - Page 38
... Battery
No Check the PMU related to VINT
Check the Clock at R404=32KHZ
Yes
C404(+VDD_IO_LOW) & C406(+VDD_IO_HIGH) = "H"?
Power On
' Power On ' does not work Yes
Check the Battery Voltage is more than 3.7V Yes
C426(VISA) = 2.6V?
9. Yes
No Check the +VDD_GSM_CORE circuit
Check the initial operation Yes
END...
Service Manual - Page 40
Initial
Initial Failure Yes
U200 pin C11 (RSTON) ="H"?
OK? Yes
U200 pin F1(RSTEXTn) ="H"? Yes Check the 16bit data signal
& memory CE Yes
END
Flow Chart of Troubleshooting
No Check the circuit related to reset
No change U200
9-3
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization 9-2.
Service Manual - Page 42
... U402 pin 36 ≒ 1.25V
Yes END
Flow Chart of Troubleshooting
No
Check the circuit related to
V_EXT_CHARGE
No
Check the circuit related to
AUX_ON signal
No Resolder or replace U402
9-5
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Service Manual - Page 44
Sim Part
Phone can not be used without Samsung's authorization Yes Check the SIM Card
Yes END
Flow Chart of CN400 in a few second
Yes After SIM card insert, CN400 pin 2 = "H(SIM_RST)"? 9-4. Yes
After Power ON, Check SIMCLK Signal on pin3 of Troubleshooting
No Resolder or replace U402
No Check the Clock
No Replace PBA
9-7
SAMSUNG Proprietary-Contents...
Service Manual - Page 51
Yes
END
No Check the Dome sheet & Key Pad
No Replace the Key PBA
9-14
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization Flow Chart of the keys is pushed,
is OK? Yes
When one of Troubleshooting
9-7. Key Data Input
Check Initial Operation Yes
When one of the keys is pushed,
KBIO signal is it displayed on LCD?
Service Manual - Page 60
9-12. Radio part
Radio does not work Yes
R501, R503, C509 ≥ 2.8V Yes
R501, R502, C507, C508 ≥ 2.8V
Yes L503 ≥ 2V
Yes C516, L504, C517, C514
is OK? (When U501 operate)
Yes
Check U200 signal related to U501
Yes END
Flow Chart of Troubleshooting
No Resolder R501, R503, C509 and...
Service Manual - Page 62
GSM Receiver
Flow Chart of Troubleshooting
RX ON Cell Power : -60dBm
Yes F100 Pin13 ≥ -65dBm
Yes F100 1,2 ≥ -68dBm
Yes U101 pin 24 ≥ -70dBm pin 25 ≥ -70dBm
Yes
U101 pin 4,5,6,7 ≥ 0....
Service Manual - Page 63
No
Check VBAT or PAM
control signal
Yes
U101pin
11,12,16,17,29
No
32,33,36 ≥2.8V
Check U101,
pin10≥1.8V
C121,C124,C126
Yes Resolder U101
9-26
...
Service Manual - Page 64
9-15. DCS Receiver
Flow Chart of Troubleshooting
RX ON Cell Power : -60dBm
Yes F100 Pin13 ≥ -65dBm
Yes F100 3,4 ≥ -68dBm
Yes U101 pin 22 ≥ -70dBm pin 23 ≥ -70dBm
Yes
U101 pin 4,5,6,7 ≥ 0....
Service Manual - Page 65
... circuit
Change or Resolder F100
No
Check U100pin 4,5,
Yes
8,14 +Vbatt pin2,3,
Resolder or Change U100
15,16 OK? No
Check +VBAT or PAM
control signal
No
U101pin11,12,16,17,
No
Check & Resolder
29,32,33,36≥2.8V
C121,C124,C126
pin 10≥1.8V
And PMU Part
Yes...
Service Manual - Page 66
PCS Receiver
Flow Chart of Troubleshooting
RX ON Cell Power : -60dBm
Yes F100 Pin13 ≥ -65dBm
Yes F100 5,6 ≥ -68dBm
Yes U101 pin 20 ≥ -70dBm pin 21 ≥ -70dBm
Yes
U101 pin 4,5,6,7 ≥ 0....
Service Manual - Page 67
... circuit
Change or Resolder F100
No
Check U100pin
Yes
4,5,8,14 +Vbatt
Resolder or Change U100
pin2,3,15,16 OK? No
Check +VBAT or PAM
control signal
No
U101pin11,12,16,17,
29,32,33,36≥2.8V pin 10≥1.8V
No
Check & Resolder C121,C124,C126
And PMU Part
Yes...
Samsung Knowledge Base Results
We have determined that the information below may contain an answer to this question. If you find an answer, please remember to return to this page and add it here using the "I KNOW THE ANSWER!" button above. It's that easy to earn points!-
General Support
... From My SGH-v205 SGH-v205 To The SIM Card? The Font Size On My SGH-v205 If So How? I Disable Or Change The Startup / Shutdown Tones On My SGH-v205? Do I Change The Ringtones On My SGH-v205? My SGH-v205 My SGH-v205 Support The Use Of MP3s? Can My SGH-V205 Receive Picture Messages From Another Mobile Phone? The... -
General Support
...My SGH-x475? Do I Change The Greeting On My SGH-x475 If So How? I Copy Contacts From My SGH-x475 To The SIM Card? The SGH-X475 Is It Possible To Set The Backlight To Stay On When The Phone Is... On The X475? Listing On My SGH-X475 Model Phone? My SGH-x475 Support Voice Dialing? View the T-Mobile SGH-X475 Menu Tree Can I Turn Off The Keypad Tones On My SGH-X475? Is There A Way To Turn... -
General Support
... These Functions Are? Do I Change Text Input Modes On My SGH-E335? Do I Use Key Guard Or Key Lock On My SGH-E335? The Voice Memo Capability Of The E335 Phone Limited To 2 Minute Recordings? Messaging Communication & Configurations Speed Dial Time & View the T-Mobile SGH-E335 Menu Tree Do I Remove A Ringtone Assigned To A Contact...
Similar Questions
What To Do When My Cell Phone Says Unable To Charge Non
(Posted by Masc 10 years ago)
Why Does My Sgh T528g Cell Phone Say Camera Failed When I Try To Access Camera
(Posted by fyodoyas 10 years ago)
Need Puk Code For Samsung Cell Phone
my 5afelink CeLL phone is asking for the Puk Code.It'sa Samsung SgH S125g
my 5afelink CeLL phone is asking for the Puk Code.It'sa Samsung SgH S125g
(Posted by tammyrenee4b 11 years ago)
Why Does My Cell Phone Say Emergency Calls Only
(Posted by Anonymous-34294 12 years ago)