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77
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KX-F910BX
TROUBLESHOOTING GUIDE
3-11. SENSOR SECTION
(1) Check the read position sensor(PI301)
(2) Check the document sensor (PI302)
(3) Check the cover open sensor(SW271)
Check the voltage at pin 15 of IC301
Document set OV
No document 4~5V
When the pin
16 of IC301 is
low level.
Replace IC301.
Check the voltage at pin 15 of IC301
Document set 4~5V
No document 0V
When the pin
9 of IC301 is
low level.
Check the voltage at pin 31 of IC151
Open cover: 4~5V
Close cover: 0V
Replace IC301.
Replace IC151.
NG
Check the soldering at R271.
Check the soldering
at R272
Replace SW271.
Replace PI302.
Replace PI301.
Check the soldering
at R332.
Check the soldering
at R331.
OK
Check the soldering at R333.
Check the soldering at R333.
NG
NG
OK
OK
OK
OK
OK
OK
OK
OK
Содержание KX-F910BX
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