Measurement - Casio KL-7000 Service Manual And Parts List

MEASUREMENT

Measure each value according to the following table and figure, if necessary.
Measurement point
VDD1 Min.
Max.
VDD2 Min.
Max.
VP Min.
Max.
Ibat Typ.
(Displaying) Max.
Ibat Typ.
(Printing) Max
Ibu Min.
(Power off) Max.
Note : Ibat = Power source (Batteries or AC adaptor)
Ibu = Back-up battery (CR2032)
Vbat = 12V ± 2%)
Vbat
V
GND
Voltage / Current
4.72V IDD1 = 30 mA
5.4V
4.72v IDD2 = 30 mA
5.4v
11.70V IP = 300 mA
12.24V
25 mA Turning power SW on.
100 mA
When printing "CASIO COM..." at diagnostic program
0.6A
PRINT CHECK-1.
0.7A When printing " ! " at diagnostic program PRINT CHECK-1.
---- Turning power SW off and disconnecting power
15 µA
source Vbat. Then supply +3V from CR2032.
Table-1
PCB L271-1
Ibat
DP1
A
Ibu
A
DP7
CR2032
DP2
Figure-7
— 5 —
Condition
IDD1
A
VDD1
(DP8)
V
IDD2
VDD2 A
DP6
V
VP A
DP5
V
IP