Casio LK100 - Lighted Keyboard With LCD Display User manual

ELECTRONIC KEYBOARD
LK-100
MAY. 2006
LK-100
Ver.1 : Dec. 2007
INDEX

CONTENTS
Specifications ---------------------------------------------------------------------------------------------- 1
Circuit Description --------------------------------------------------------------------------------------- 2
Printed Circuit Board ------------------------------------------------------------------------------------ 3
Diagnostic Program-------------------------------------------------------------------------------------- 6
Exploded View --------------------------------------------------------------------------------------------- 9
Parts List--------------------------------------------------------------------------------------------------- 10
Schematic Diagrams----------------------------------------------------------------------------------- 13

— 1 —
SPECIFICATIONS
GENERAL
Keyboard: 61 standard-size keys; 5 octaves
Key Light System: Can be turned on and off (up to 4 keys can be lit at the same time)
Tones: 100 presets
Polyphony: 12 notes maximum
3-Step Lesson System: Number of simultaneosly lit keys; 4
3-Steps
Playback: 1 tune repeat playback
Voice Fingering Guide: On/Off
Auto-accompaniment
Rhythm patterns: 50 presets
Tempo: Adjustable, (216 steps, = 40 to 255), initial value; 120
Chords: Two systems; CASIO CHORD, FINGERED
Other: Fill-in pattern, Synchro start
Song Bank tunes: 100 tunes
Musical Information
Function: Tone, Auto Accompaniment, Song Bank numbers and names; tempo, 3 step
lesson display, chord name, fingering, timing indicator, key lighting, voice
fingering
Other Functions
Transpose: F#to C to F: half-note
Tuning: Adjustable A4 = Approx. 440 Hz ±50 cents, Initial value: A4 = Approx. 440 Hz
MIDI: 5 multi-timbre receive
Speakers: 10 cm diameter x 2 (Output: 2W+2W)
I/O Terminals
MIDI Terminals: IN, OUT
Sustain: Standard jack
Power Supply: DC 9V jack
Headphones/Output: Stereo standard jack (Output is monaural.)
[output impedance: 78Ω, output voltage: 4V (RMS) MAX]
Microphone In: Standard jack (with microphone volume slider)
Input impedance: 2KΩ
Input sensitivity: 10mV
Power Supply: 2-way
Batteries: 6 AA-size
Battery life: Approximately 4 hours continuous operation on alkaline batteries
Approximately 1 hour continuous operation on manganese batteries
AC adaptor : AD-5
Auto Power Off: Approximately 6 minutes after the last operation
(Operates during battery use only)
Power Consumption: 9 V 7.7 W
Dimensions: 94.5 x 37.3 x 13.5 cm (37 1/4" x 14 11/16" x 5 5/16")
Weight: Approximately 4.7 kg (10.4 lbs) (without batteries)
* Designs and specifications are subject to change without notice.

— 2 —
CIRCUIT DESCRIPTION
C2 C3 C4 C5 C6 C7
NOMENCLATURE OF KEYS
KEY LED MATRIX
KO0
KO1
KO2
KO3
KO4
KO5
KO6
KO7
KI4
G4#
A4
A4#
B4
C5
C5#
D5
D5#
KI5
E5
F5
F5#
G5
G5#
A5
A5#
B5
KI2
E3
F3
F3#
G3
G3#
A3
A3#
B3
KI3
C4
C4#
D4
D4#
E4
F4
F4#
G4
KI0
C2
C2#
D2
D2#
E2
F2
F2#
G2
KI1
G2#
A2
A2#
B2
C3
C3#
D3
D3#
KI6
C6
C6#
D6
D6#
E6
F6
F6#
G6
KI7
G6#
A6
A6#
B6
C7
–
–
–
BUTTON MATRIX
KI4
4
9
ONE KEY
PLAY (L)
KI5
START/
STOP
TEMPO 
ONE KEY
PLAY (R)
KI2
2
7
SONG
BANK
STEP3
KI3
3
8
PART
SELECT
SPEAK
KI0
0
5
TONE
STEP1
KI1
1
6
RHYTHM
STEP2
KI6
TEMPO 
KEY
LIGHT
KI7
SYNCHRO
DEMO
KO8
KO9
KO10
KO11

— 3 —
PRINTED CIRCUIT BOARDS
MAIN PCB M662-MDA1

— 4 —
CONSOLE PCB M662-CNA1
LED PCBs M645-LDA1/LDA2

— 5 —
LED PCBs CSM446-LD3M/LD4M/LD5M
Keyboard PCBs M627-KYA1/KYA2

— 6 —
DIAGNOSTIC PROGRAM
■ Initial Setup
1. Connect an AC adaptor.
2. “MODE” switch: OFF
3. “VOLUME”: MAX.
■ How to start diagnostic program
1. Press and hold “0” and “START/STOP” buttons.
2. “POWER/MODE” switch “NORMAL”
3. The massage “662 TEST” is appears on LCD.
4. Release “0” and “START/STOP” buttons.
■ Diagnostic program Message on LCD
1. MODE Switch check
1Set to “CASIO CHORD” position. CASIO
2Set to “FINGERED” position. FINGER
3Set to “NORMAL” position. NORMAL
2. ROM check
1Press “2” button. ROM TEST
* Confirmation sound sounds. 앗
ROM OK

— 7 —
Message on LCD
MIN
MID
MAX
MIDI OK
AC JACK
KEY LED
3. D/A check
1Press “4” button.
* When standing in the center, the judge hears the minimum test sound in an
equal volume from both right and left speakers
2Press “5” button.When standing in the center, the judge hears the minimum
test sound in an equal volume from both right and left speakers
* When standing in the center, the judge hears the medium test sound in an
equal volume from both right and left speakers.
3Press “6” button.
* When standing in the center, the judge hears the maximum test sound in an
equal volume from both right and left speakers.
4. MIDI check (IN – OUT)
1Connect MIDI IN and MIDI OUT terminals with a MIDI cable.
2Press “9” button.
* Confirmation sound sounds.
5. AC adaptor check
1Press “SONG BANK” button.
* Confirmation sound sounds.
6. LED check
1Press “TONE” button.
* The key lights with confirmation sound in the following order.
* There must not be remarkable difference in the LED brightness of the
adjacent key.
1) C1, D1, E1, F1,
2) G1, A1, B1, C2,
3) D2, E2, F2, G2
4) A2, B2, C3, D3
5) E3, F3, G3, A3
6) B3, C4, D4, E4
7) F4, G4, A4, B4
8) C5, D5, E5, F5
9) G5, A5, B5, C6
10) C1#, D1#
11) F1#, G1#, A1#
12) C2#, D2#
13) F2#, G2#, A2#
14) C3#, D3#
15) F3#, G3#, A3#
16) C4#, D4#
17) F4#, G4#, A4#
18) C5#, D5#
19) F5#, G5#, A5#
7. Version check
1Press “1” button.
* Confirmation sound sounds.
Message on LCD
662VR100

— 8 —
8. LCD check
1Press the “STEP1” button.
* All dots and characters of LCD turn on.
* There is no lack of the dot and the charater.
* See all dots from lower view angle(38.7°).
* See all dots from upper view angle(66.7°).
2Press the “STEP2” button.
* LCD no display.
3Press the “STEP3” button.
* Block of LCD turns on by sequential.
* There is no lack of the dot and the charater.
4Press the “ONE KEY(Left side)” button.
* Half dots on DP3 area of LCD turns on.
* There is no lack of the dot and the charater.
5Press the “ONE KEY(Left side)” button.
* Another half dots on DP3 area of LCD turns on.
* There is no lack of the dot and the charater.
6Press the “ONE KEY(Right side)” button.
* Half segments of LCD turns on exclude DP3.
* There is no lack of the dot and the charater.
7Press the “ONE KEY(Right side)” button.
* Another half segments of LCD turns on exclude DP3.
* There is no lack of the dot and the charater.
9. APO check
1Press the “PART SELECT” button.
* Go out from TEST mode (Power off).
* The LCD turns off.
* Disconnect the MIDI cable.
* Disconnect an AC adaptor.
* “MODE” switch: OFF
DIAGNOSTIC PROGRAM IS FINISHED.
DP3 area

— 9 —
EXPLODED VIEW
24
18 21
19
20
22
23
27
13
9
10
11
12
7
3
28
8
16
65
1
25
2
26
4
17
13
15
14

—10 —
Notes: This parts list does not include the cosmetic parts,
which parts are marked with item No. "R-X" in the
exploded view.
Contact our spare parts department if you need
these parts for refurbish.
1. Prices and specifications are subject to change
without prior notice.
2. As for spare parts order and supply, refer to the
"GUIDEBOOK for Spare parts Supply",
published seperately.
3. The numbers in item column correspond to the
same numbers in drawing.
PARTS LIST
LK-100

N Item Parts code Parts name Specification Q
P
r
i
ce
Code R Remarks
Main PCB
N 1 10243441 PCB ASSY/MAIN TK-RJM506876*001 1 BY A
NIC3 10240586 IC XC6109N40ANR 1AEC
X1 10070555 CERAMIC OSCILLATOR CSTCW20M0X51-R0 1ACC
NQ1-4 10207076 TRANSISTOR KTC601U-GR-RTK/P 4 AA X
Q5-8 10209018 TRANSISTOR KTA501U-GR-RTK/P 4 AA X
Console PCB
N 2 10243440 PCB ASSY/CNA TK-RJM506875*001 1 CD C
D301 10104646 LED 1154HD-B5/10-90 1AA C
D310 10201501 IC PC900V0NSZXF 1AG C
IC302 10189501 IC LA4227-E 1AF C
D303,306,307,309,
312-319 10079928 DIODE 1SS133TA 12 AA C
IC303,304 10206677 IC NJM2068D-D 1AH C
NJ303 10209462 JACK DJ-0702O*015 1AA C
J304 10206815 CONNECTOR JY-6314*01-030 1AA X
J301 10206816 CONNECTOR JY-6314*01-130 1AA X
J302 10213695 JACK JY-6316*01-070 1AC X
NL303 10231919 COIL RB53-856396NP 1AA X
NL304 10231920 COIL RB53-856397NP 1AA X
Q305 10206676 TRANSISTOR KTC2026-Y-U/P 1AB X
VR301 69304870 VOLUME EVND8AA03B53 1AA X
D305 10080347 DIODE 1A2TA 1AA X
D302 10079931 DIODE DZ5.1BSCTA 1AA X
D308,311 10085189 ZENER DZ5.6BSBTA 2AA X
D304 10079929 DIODE SRT14TA 1AA X
NL301,302,305 10222984 COIL CNSS-823465NP 3AA X
NQ301 10206675 TRANSISTOR KTA1273-Y-AT/P 1AA X
Q302,304 10206673 TRANSISTOR KTC3199-GR-AT/P 2AA X
Q303 10209015 TRANSISTOR KTD863-GR-AT/P 1AA X
LED PCBs
3 10133541 PCB ASSY/LDA TK-RJM503432*001 1BL C
4 10059364 PCB ASSY/LD3M TK-M240428*1(M478) 1BA C
5 10036271 PCB ASSY/LD4M TK-M240429*1(M475) 1AT C
6 10036272 PCB ASSY/LD5M TK-M240430*1(M475) 1AT C
LED501-536 23701408 LED SLI-332URCTJ2 36 AA X
Keyboard unit
N 7 10243430 PCB ASSY/KYA TK-RJM503929*004 1 AR C
D701-D761 10079928 DIODE 1SS133TA 61 AA X
810014608 KEY SET/WHITE/CB M340489A*3 4 AU C
910014609 KEY SET/WHITE/CS M340489A*4 1 AV C
10 69251730 KEY SET/BLACK/5P M140369-2 1AM C
11 69251720 KEY SET/BLACK/10P M140369-1 2BN C
N1210243429 RUBBER/CONTACT TK-RJM503856*001 1 AQ C
Notes N-New parts
Q-Quantity used per unit
- 11 -

N Item Parts code Parts name Specification Q
P
r
i
ce
Code R Remarks
Case unit
13 10228219 SPEAKER C10JB25 2AH C
N 14 10240416 KNOB/SLIDE RJM503803-004V01 3AA C
15 19153667 CONTACT/SLIDE CSB-08D 3 AD C
N16 10240401 LCD D050703 1AX C
N17 10203056 CONNECTOR RJM505826-001V01 2AA C
N18 10240390 RUBBER/KEY/A RJM506947-001V01 1AC C
N19 10240391 RUBBER/KEY/C RJM506948-001V01 1AH C
N20 10240392 RUBBER/KEY/D RJM506949-001V01 1AB C
N21 10240393 RUBBER/KEY/E RJM506950-001V01 1AA C
N22 10240395 RUBBER/KEY/F RJM506951-001V01 1AD C
N23 10240396 RUBBER/KEY/G RJM506952-001V01 1AF C
N24 10240384 PLATE/DISPLAY RJM506607-001V01 1AN C
25 10098012 COVER ASSY/BATTERY TK-M340884*006 1 BH C
26 10243433 CASE ASSY/MIDDLE TK-RJM506789*001 1 BZ C
N27 10240417 CASE/UPPER RJM506573-001V01 1BY C
N28 10240385 PLATE/LOWER RJM506608-001V01 1AW C
ACCESSORY
- 69208690 STAND/MUSIC M311760-1 1 AI C
- 10083548 BATTERY R6UW/2STA 3 AC C Only DI
-
Notes N-New parts
Q-Quantity used per unit
- 12 -

— 13 —
SCHEMATIC DIAGRAMS
MAIN PCB M662-MDA1

— 14 —
CONSOLE PCBs M662-CNA1

— 15 —
LED PCBs M645-LDA1/LDA2

— 16 —
LED PCBs CSM446-LD3M/LD4M/LD5M

— 17 —
Keyboard PCBs M627-KYA1/KYA2

CASIO COMPUTER CO.,LTD.
Overseas Service Division
6-2, Hon-machi 1-Chome
Shibuya-ku, Tokyo 151-8543, Japan
Ver.1 : Dec. 2007
• Correction of the DIAGNOSTIC PROGRAM (P6 to P8)