Diagnostic Program - Casio NX-4000 Service Manual & Parts Manual

DIAGNOSTIC PROGRAM

BOTTOM VIEW
To enter the diagnostic program, proceed as follows;
1: Open the battery cover and turn the power switch on.
2: Short the TEST pads CP38 and CP55.
S T E P O P E R A T I O N
Enter the Press on and then short
diagnostics the TEST pad.
Main menu Tap anywhere
DIsplay Check 1 DISPLAY
1 DISPLAY
Tap anywhere
Tap anywhere
Tap anywhere
Tap anywhere
Tap anywhere
Tap anywhere
Tap anywhere
Tap anywhere
Tap anywhere
Tap anywhere
Memory Check 2 MEMORY
1 WRITE 1
CP55
Enlarge
DISPLAY
SELF TEST PROG
PRESS any TOUCH
QUIT BY OFF KEY
CASIO JULY 1995
TEST MENU
1 DISPLAY 5 I / F
2 MEMORY 6 CONTRAST
3 TIME 7 TOUCH
4 BUZZER 8 RESET
DISPLAY
1 DISPLAY
2 FRAME FREQ.
No color, no display
Orange color is displayed
Green color is displayed
Blue color is displayed
Checkers are displayed
Reverse checkers are displayed
Frame is displayed
Dots at the 4 corners are displayed
Vertical 4 colors are displayed
Horizontal 4 colors are displayed
TEST MENU
1 DISPLAY 5 I / F
2 MEMORY 6 CONTRAST
3 TIME 7 TOUCH
4 BUZZER 8 RESET
MEMORY
1 WRITE 1
5 DUMP
2 READ 1
6 CHECKSUM
3 WRITE 2
4 READ 2
RAM WRITE 1
MEMORY
1 WRITE 1
5 DUMP
2 READ 1
6 CHECKSUM
3 WRITE 2
4 READ 2
— 11 —
CP38
TEST PAD
Write the test pattern 1 into
RAM
After 3 sec.
N O T E