Current Consumption And Voltage Detectors Check - Casio A-10 Operation, Service Manual & Parts List

Current Consumption and Voltage Detectors Check

Prepare the following items;
1 : Power supply 1 unit
2 : Ammeter
3 : Voltmeter
4 : AC adapter
5 : Charger
Current Consumption Check
Operation
Step
1: Maximum of contrast dial.
Setting
2: Set the range of Amme-
ter to 1 A.
3: Vb = 2.6 ± 0.02 V
Boot the diagnostic pro-
gram
5
Main Bat-
1
tery at ON
Main Bat- ENTER, 2
t e r y a t
OFF
1 unit
1 unit
1 unit
1 unit
Display (Wiring)
Ib
A
V
Vb
Alkaline battery terminal
** Main Menu **
0 AUTO MODE
1 DISPLAY
2 TOUCH PANEL
3 MEMORY
4 SERIAL
5 POWER CONTROL
6 AUDIO
7 Others
** Power Control **
1 40MHz
2 standby
3 sleep
** Power Control **
1 40MHz
2 standby
3 sleep
Currently CPU clock is 40MHz
(Power off)
— 48 —
Connect the items as fig-
-
ure.
Do not load the backup
battery.
A-10/A-11
+
To boot the diagnostic, re-
fer to page-40.
Power Control menu is for
c u r r e n t c o n s u m p t i o n
check.
Current consumption at
ON.
Measure the current.
Ib = 210 mA or under.
Current consumption at
OFF.
Measure the current.
Ib = 0.8 mA or under (2 Mbyte)
Ib = 1.0 mA or under (4 Mbyte)
Note