CASIO CSF-4950A Repair Manual

STEPOPERATIONDISPLAYNOTE
KEY CHECK 3KEY & TIME
1 RANDOM
2 AUTO
3 TIME
1No display
ESC, 1, 2, 3.......18 19..... 20 21 push the key sequentially thatTo
key code is being appeared in
the display.
OKTEST4 BUZZER
1 DISP5 I/F
2 MEMORY6 CONT
3 KEY7 RESET
Buzzer4BUZZER1 BEEP1 : Key input sound
Check2 ALARM 12 : Sound alarm 1
3 ALARM 23 : Sound alarm 2
ESCTEST4 BUZZER
1 DISP5 I/F
2 MEMORY6 CONT
3 KEY7 RESET
Interface5I/F1 TRANSThe parameter can be changed
Check2 RECEIVEas follows;
7N93 ASCIIKey "5" : Bit length 7 or 8 bit
4 LOOPKey "6" : Parity bit N(Non),
E(Even) or O(Odd)
Key "7" : BPS 9(9600) or 4(4800)
1Send the code "H"
EXECUTING !!
2No displayDisplay the received charactor.
3Send the ASCII code
EXECUTING !!
4Loop back check
EXECUTING !!
ESCI/F1 TRANS
2 RECEIVE
7N93 ASCII
4 LOOP
CONTRAST6TEST4 BUZZER
ADJ.1 DISP5 I/F
2 MEMORY6 CONT
3 KEY7 RESET
Contrast up :Contrast adjustment
(ORG)
or SHIFT +
(BLU)
Contrast down :(GRN)
or SHIFT +INITIALIZE
Cursor keysAdjust the color using cursor keys
until the primary colors appear
accurately.
N 13 N