Diagnostic Program - Casio CTK-691 Service Manual

Initial Setup
1. Connect an AC adaptor.
2. Connect a Sustain pedal.
3. "Main" volume: MAX.
NOTE: If there is no pedal or MIDI cable, pedal or MIDI check can be skipped.
How to start diagnostic program
1. Press the "POWER" button while pressing the "Cursor key Up" and "Cursor key Down" buttons.
2. Release the "POWER" button first while still pressing the "Cursor key UP" and "Cursor key Down"
buttons. After "000 Sy.Gr Pno" appears, release the "Cursor key UP" and "Cursor key Down"
buttons. "TEST 705" appears on the LCD.
NOTE: Refer to the figure below for the LCD messages that appear during the diagnostic program.

Diagnostic program

1. Button check
1 Press "DSP" button. Display indicates 3 "MODE".
2 Press buttons in the following order.
NG sound sounds when a button is defective or buttons are pressed in a wrong order.
NOTE:
LCD message appears in the area 3
Message on LCD
1MODE
OTP
2ONE TOUCH PRESET ACMP VOL
3ACCOMP VOLUME INT/END1
4INTRO/ENDING 1 INT/END2
5INTRO/ENDING 2 VAR/FIL 1
VAR/FIL 2
6VARIATION/FILL-IN 1
7VARIATION/FILL-IN 2
SYNCHRO
8SYNCHRO/FILL-IN NEXT
STRT/STP
9START/STOP
TEMPO/DW
@TEMPO TEMPO/UP
ATEMPO
BANK
BBANK
REGIST 1
1 2 3
4 5 6 7 8
DIAGNOSTIC PROGRAM
1 2
D C B
Message on LCD
CREGISTRATION 1
REGIST 2
DREGISTRATION 2 REGIST 3
EREGISTRATION 3
REGIST 4
FREGISTRATION 4
STORE
GSTORE
TRN/FUNC
HTRANSPOSE/FUNCTION MIXER
IMIXER
SYNTH
JSYNTH
EFFECT
KEFFECT
SONG
LSONG MEMORY SMF
MSMF PLAYER
TONE
NTONE
RHYTHM
H I
J K
L M
B C
9 0 A
3 4 56
A 0 9 8 7
Message on LCD
ORHYTHM
DRAWBAR
PDRAWBAR ORGAN DSP
QDSP
PIANO
RPIANO SETTING
UP
SCursor key Up
RIGHT
TCursor key Right DOWN
UCursor key Down
LEFT
VCursor key Left
EXIT
WEXIT
HARMO
XAUTO HARMONIZE SPLIT
YSPLIT
LAYER
ZLAYER
0
D E F G
— 14 —
Message on LCD
[0 buttons 1
\1 buttons
4
]4 buttons
7
`7 buttons 8
a8 buttons 5
b5 buttons 2
c2 buttons
-
d- buttons +
e+ buttons 3
f3 buttons 6
g6 buttons
9
h9 buttons DEMO
iDEMO SW OK
N
R
Q
O
i
P S
V T ^
U
]
W
\
[
X Y Z
a h
b g
c f
d e