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SG H- X450 F low Chart of Troubleshooting
2. Initial
Initialization Failure
The pin#9 of U 300 = 1.8V and
the pin#11 of U 300 ¡Ö2.825V ?
Is the pin#19 of U 300
" L ow -> H igh" ?
32.768kH z wave form s at
the C 414 and C 416
The pin#22 of U 300 is
The V oltage is " H igh"at
L C Ddisplay is O .K
Y es
Y es
Y es
Y es
" H igh"
Y es
the C 307
Y es
Y es
Sound is O .K
Y es
E N D
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N o
(If it has som e problem , adjust it.)
N o
(If it has som e problem , adjust it.)
N o
C heck the U 400
N o
C heck the U 300
N o
C heck the U 300
N o
C heck the L C DPart
N o
C heck the A udio Part
7- 2
C heck the U 300
C heck the U 300
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