ETS2228 Maintenance Manual
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Page 31, Total 43
2
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Initialization fault maintenance procedure
Figure 12 Initialization fault maintenance procedure
YES
YES
YES
YES
YES
NO
power-on and startup
Is the voltage of pin 10 of
J404 is 2.84V
？
Check if the clock output of pin
3 of X501 is 19.2MHz.
Check if the clock signal on the
channel of X501 is normal.
End
NO
NO
Any 19.2MHz clock signal
on E17 of U701?
Any clock signal on
TP801?
Is LCD normal?
Download software again or
replace TCPU.
NO
Check the LCD interface signal of
PIPU and restore the LCD.
NO
