Adjustment - Casio Cassiopeia E-125 Service Manual And Parts List

NOTE:
Although this adjustment is described in
OPERATION CHECK in this manual, It is
recommended to adjust after assembling the
dummy lower case assembly added a hole
(approximately 10 mm in diameter) as shown
to the right.
Adjustment to correct (compensate) AD converter error voltage
This is the adjustment to correct or compensate AD converter error voltage/ digital data.
Generally speaking, the differential and linear errors exist in the output digital data and voltage which
are passed AD/ DA converter.
When calibration for touch panel, battery voltage detection and so on are not correctly performed,try to
perform this adjustment.
Important
This adjustment for the main PC Board Assembly for the spare parts has not been performed in the
factory.
Therefore, be sure to perform this adjustment whenever you replace the main PC Board Assembly.
It is recommended to prepare two DC voltage stabilizers for Main and sub (back up) power supplies.
Perform this adjustment according to the following procedure.
1. While supplying powers as shown to the right,
display Main Menu for the operation check.
* Remove AC Adapter.
* Slide the battery cover switch to LOCK
position.
2. Make the voltage power supply added to the
main battery terminal 4.2V ± 0.05V.
Then, make the voltage power supply added to
the back up battery terminal 2.7V ± 0.05V.
If turning off the unit power, stop to supply
power for the back up battery at first, then for the
main battery. After performing Initial Setup,
display Main Menu for the operation check again.
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