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Are the voltages between the following pins of
P102 (J2) on the main board (30601-BA01) as
shown below when each sensor of the chinrest
(30601-EA53) is shaded
• Up limit sensor: 4th and 7th pins
When shaded: DC 0 V
When not shaded: DC +5 V
•Down limit sensor: 6th and 7th pins
When shaded: DC 0 V
When not shaded: DC +5 V
No
Replace the Chinrest (30601-EA53) (see 7.3.12
[p89]).
Yes
Are the voltages between the following pins of
P102 (J2) on the main board (30601-BA01) as
shown below when the up/down button is pressed?
Up button:
26th and 33rd pins: DV +5 V
27th and 33rd pins: DC 0 V
Down button:
26th and 33rd pins: DV 0 V
27th and 33rd pins: DC +5 V
No
Replace the Driver board (30601-BA03) (see 7.2.3
[p75]).
Yes
Is the voltage between the J004 1st and 2nd pins of
the chinrest (30601-EA53) as shown below when
the up/down button is pressed
?
Up button: DC +12 V
Down button: DC -12 V
No
Replace the Base board (30601-BA05) (see 7.2.4
[p76]).
Yes
Содержание AR-310A
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