Table of Contents
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5-2 Initial
Initial Failure
U103 pin 4 = "H" ?
Check all the other connection
by Test S/W
Check the circuit around LCD
Check the circuit
around U107(EEPROM)
and data stored in it
END
5-3
No
Yes
Check and repair the important
signals of U108 as follows
The node
between R162 and C183
= "H" (RST)
Yes
R114 = "H" (BOOT)
Yes
R673 = "H" (MSIZE)
Yes
R165 = "L" (EXTPROC)
Replace PBA
Flow chart of trouble shooting and Circuit Diagram
No
Check U112
No
Resolder R114
No
Resolder R673
No
Resolder R165
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