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SGH-Z130 Flow Chart of Troubleshooting and Circuit Diagrams
2-
3
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2-1-2. System Initial
The pin #9 of U500
" Low --> High" ?
Initial Failure
LCD Display OK ?
Sound operation OK ?
END
Check the OSC501
Check the LCD part
Check the Audio part
YES
NO
NO
NO
YES
YES
YES
NO
NO
YES
Check the U500
Check the clock
generation circuit
(related to U500 and
OSC801
Check the Sleep X-tal
signal's at C523 ?
Check the clock signal's
at R510