Initial - Samsung SGH-Z650i Service Manual

9-1-2. Initial

The pin #9 of U501
" Low --> High" ?
Check the Sleep X-tal signal's
Check the clock signal's
LCD Display OK ?
Sound operation OK ?
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Initial Failure
YES
at C524
YES
at R508
YES
YES
YES
END
NO
NO
Check the clock generation
NO
circuit (related to U501 and
NO
NO
9-5
Flow Chart of Troubleshooting
Check the U501
Check the OSC501
TCX800)
Check the LCD part
Check the Audio part