5-2
Flow chart of trouble shooting
5-2 Initial
Initial Failure
Check and repair the important
signals of U414 as follows
END
No
U452 pin 4 = "H" ?
The node
between R312 and C325
= "H" (RST)
No
Check U307
R348 = "H" (BOOT)
No
Resolder R348
Yes
R440 = "H" (MSIZE)
No
Resolder R440
Yes
R438 = "L" (EXTPROC)
No
Resolder R438
Yes
Replace PBA
Check all the other connection
by Test S/W
Check the circuit around LCD
Check the circuit
around U304(EEPROM)
and data stored in it
Содержание SGH-N100
Страница 9: ...1 7 Exploded Views and Parts List 1 8 Test Zig TEST JIG GH80 10508A TEST JIG CABLE GH39 30532A ...
Страница 10: ...1 8 Exploded Views and Parts List 1 9 Earphone EARPHONE GH96 00830A 1 10 Data Kit DATA KIT GH39 30533A ...
Страница 11: ...Exploded Views and Parts List 1 9 1 11 Desk Top Charger DESK TOP CHARGER GH44 00163A ...
Страница 12: ...PCB Diagrams 2 PCB Diagrams 2 1 Main Top ...
Страница 13: ...2 1 ...
Страница 14: ...PCB Diagrams 2 1 Main Bottom ...
Страница 15: ...2 2 ...