Casio fX7400G Service Manual
fx-7400G (ZX-930A)
(without price)
INDEX
MAR. 1996
fx-7400G
R
CONTENTS
1. SCHEMATIC DIAGRAMS ..................................................................................1
2. SPECIFICATIONS............................................................................................. 3
3. REPLACING BATTERIES..................................................................................4
4. RESET OPERATION..........................................................................................6
5. ERROR MESSAGE ............................................................................................8
6. OPERATION CHECK .......................................................................................10
7. EXPLODED VIEW ............................................................................................12
8. PARTS LIST .....................................................................................................13
1. SCHEMATIC DIAGRAMS
— 1 —
— 2 —
2. SPECIFICATIONS
Display system: 13-character × 6-line display; 10-digit mantissa and 9-digit mantissa and 2-
digit exponent when using exponential format for calculations; displays
sexagesimal, fraction values
Power supply: Main: Two AAA-size batteries (LR03 (AM4) or R03 (UM-4))
Back-up: One CR2032 lithium battery
Power consumption: 0.05 W
Battery life*: LR03 (AM4): Approximately 2,000 hours (continuous display of main menu)
Approximately 2 years (power off)
R03 (UM-4): Approximately 1,000 hours (continuous display of main menu)
Approximately 2 years (poweroff)
Back-up: Approximately 2 years
* The batteries that have been installed in this unit when user purchased
it had been used in the factory test, so it will be impossible to fully satisfy
this specifications when these batteries are used.
Auto power off: Power is automatically turned off approximately six minutes after last
operation.
Ambient temperature range: 0°C ~ 40°C (32°F ~ 104°F)
Dimensions: 18.9 mm (H) × 77 mm (W) × 158 mm (D) (3/4" (H) × 3" (W) × 61/4" (D))
Weight: 130 g (4.6 oz) including batteries
Accessories: Hard case
Current Consumption:
TYP [µA] MAX [µA]
ON (MENU) 317.4 425.7
OFF 15.4
— 3 —
Loading...