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Samsung SGH-T400 Service Manual

Also see for SGH-T400: Owner's manual

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Contents
  1. 1. Exploded Views and Parts List
  2. Table Of Contents
  3. main parts list
  4. travel adapter
  5. ciger light adapter
  6. test jig
  7. 1-8 Wearable EAR Microphone
  8. Table Of Contents
  9. main parts list top
  10. main parts list bottom
  11. main rf
  12. rf transmit part
  13. rf receive part
  14. power on
  15. charging part
  16. sim part
  17. microphone part
  18. speaker part
  19. key data input
  20. receiver part
  21. ring indicator
  22. gsm receiver
  23. gsm transmitter
  24. dcs receiver
  25. dcs transmitter
Samsung SGH-T400 Service Manual Manual pdf 31 page image
Flow Chart of Troubleshooting and Circuit Diagrams 5-75-4 Sim PartQ304 pin 5 = "H" ? Replace Q304 orReplace PBAENDYesNoCheck the circuit around U408(Serial EEPROM) and data stored in itYesPhone can't access SIM cardYesQ304 pin 2, 3 = 3.0 V ? Replace Q304YesNoAfter Power ON,Check SIMCLK Signal on CN302 pin 3in a few secondAfter SIM card insert,CN302 pin 2 = "H"(SIMRST) ?Replace PBAReplace PBAYesNoNoQ304 pin 4 = 3.0 V ?YesNoResolder R338
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This manual is suitable for:
SGH-T400
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