Casio CTK-1100 Guida alla risoluzione dei problemi

CTK-1100

JUL. 2010

CTK-1100

Ver. 2 : Jan. 2012

ELECTRONIC KEYBOARD

INDEX

CONTENTS

SPECIFICATIONS........................................................................................... 1

BLOCK AND WIRING DIAGRAM .................................................................. 2

PCB INFORMATION....................................................................................... 3

CIRCUIT DESCRIPTION ................................................................................ 4

PRINTED CIRCUIT BOARDS......................................................................... 5

DISASSEMBLY............................................................................................... 7

DIAGNOSTIC PROGRAM ............................................................................ 16

EXPLODED VIEW......................................................................................... 22

PARTS LIST.................................................................................................. 23

SCHEMATIC DIAGRAMS............................................................................. 26

CTK-1100

– 1 –

SPECIFICATIONS

Keyboard 61 standard-size keys, 5 octaves

Tones 100

Polyphony 12 notes maximum (6 for certain tones)

Auto Accompaniment

Rhythm Patterns 100

Tempo Variable (236 steps, = 20 to 255)

Chords 2 ngering methods (CASIO CHORD, FINGERED)

Rhythm Controller START/STOP, SYNCHRO/FILL-IN

Accomp Volume 0 to 9 (10 steps)

Song Bank

Tunes 100

Controllers PLAY/PAUSE, STOP, REW, FF, LEFT ON/OFF (ACCOMP),

RIGHT ON/OFF (MELODY)

Other Functions

Transpose 12 steps (–6 semitones to +5 semitones)

Tuning Variable (A4 = approximately 440Hz ± 50 cents)

Terminals

Phones/Output Terminal Stereo standard jack (Output is monaural.)

Output Impedance 78 Ω

Output Voltage 4 V (RMS) MAX

Power Supply Terminal 9.5 V DC

Power Supply Dual power supply system

Batteries 6 AA-size zinc-carbon batteries or alkaline batteries

Battery Life:

Approximately 2 hours continuous operation on zinc-carbon batteries

AC Adaptor AD-E95100L

Auto Power Off Turns power off approximately 6 minutes after last key operation.

Speaker Output 2.0 W + 2.0 W

Power Consumption 9.5V 7.7W

Dimensions 94.9 × 30.4 × 9.3 cm (37 3/8 × 11 15/16 × 3 11/16 inch)

Weight Approximately 3.3 kg (7.3 lbs) (without batteries)

CTK-1100

– 2 –

BLOCK AND WIRING DIAGRAM

VD5

RIGHT

SPEAKER

LEFT

SPEAKER

VA5VD5

VD5

VCP

D202

LSP

RSP

VA5

VD5 VA5

LCD

VCP

DB4~DB7

KEYBOARD PCB

(M800-KYA2)

LCD

CONTROLLER

IC2

POWER

AMPLIFIER

IC201

RESET IC

IC3

POWER SUPPLY

CIRCUIT

Q202, Q203, D206,

C225, C227, C229

CN3 (17 pin)

CN201 (17 pin)

CN205

CN203 (+)

CN202 (-)

CN206CN207

CN6

CN8

CN204

LSP+

LSP-

CN9

CN7

CN4

CN5

RSP+

RSP-

CN803 (16 pin)

CN801 (13 pin)CN802 (13 pin) KEYBOARD PCB

(M800-KYA1)

CN1 (16 pin)

SI1, SI2, SI4~SI6,

KI6S, SO1~SO6

KI0~KI7, KO0~KI7

KI3S~KI6S,

KO11S

PHONES/OUTPUT

(J202)

9 V

DC IN

(J201)

POWER AMP PCB

(M820-PSA1)

MAIN PCB

(M820-MDA1)

BUTTONS VOLUME

(SW202)

POWER SWITCH

(SW201)

BATTERY

POWER OFF

CIRCUIT

Q201

MPU

IC1

BUTTONS

KI0S~KI6S,

KO8S~KO12S

CTK-1100

– 3 –

PCB INFORMATION

M800-KYA2M800-KYA1

M820-PSA1 M820-MDA1

Classiﬁ cation Parts Name PCB Name Components

Main PCB PCB ASSY/MDA1 M820-MDA1 MPU, LCD Controller, Reset IC,

Buttons, Right Speaker Terminal

Power Amp PCB PCB ASSY/PSA1 MX820-PSA1

Power Supply Circuit, Power Ampliﬁ er,

Power Switch, Volume, Buttons,

DC 9.5V Jack, Left Speaker Terminal,

Phones/Output Jack

Keyboard PCB PCB ASSY/KYA M800-KYA1 Keyboard

M800-KYA2

CTK-1100

– 4 –

CIRCUIT DESCRIPTION

KEY MATRIX



KC0 KC1 KC2 KC3 KC4 KC5 KC6 KC7

KI0 C2 C2# D2 D2# E2 F2 F2# G2

KI1 G2# A2 A2# B2 C3 C3# D3 D3#

KI2 E3 F3 F3# G3 G3# A3 A3# B3

KI3 C4 C4# D4 D4# E4 F4 F4# G4

KI4 G4# A4 A4# B4 C5 C5# D5 D5#

KI5 E5 F5 F5# G5 G5# A5 A5# B5

KI6 C6 C6# D6 D6# E6 F6 F6# G6

KI7 G6# A6 A6# B6 C7

NOMENCLATURE OF KEYS



C3 C4 C5

C6 C7

BUTTON MATRIX



KO8S KO9S KO10S KO11S KO12S

KI0S - 3 6 9 FF

KI1S + 2 5 8 RIGHT ON/OFF

KI2S 0 1 4 7 PLAY/PAUSE

KI3S TEMPO DOWN START/STOP TRANSPOSE/

TUNE

FINGERED

(POWER/

MODE)

STOP

KI4S TEMPO UP SYNCHRO/

FILL-IN SONG BANK CASIO CHORD

(POWER/MODE)

LEFT ON/OFF

KI5S CHORD RHYTHM NORMAL

(POWER/MODE)

REW

KI6S ACCOMP

VOLUME TONE OFF

(POWER/MODE)

CTK-1100

– 5 –

PRINTED CIRCUIT BOARDS

Main PCB: M820-MDA1 Sub PCB: M820-PSA1

CTK-1100

– 6 –

Keyboard PCB: M800-KYA1

Keyboard PCB: M800-KYA2

CTK-1100

– 7 –

DISASSEMBLY

CAUTION



The photos show a prototype. The appearance of the instrument, such as color, may

z

differ from the actual model.

To avoid damages to the instrument and the oor, lay the instrument on a mattress

z

or blanket before starting disassembling.

There are several kinds of screws. Be sure to use the correct type of screws when

z

reassembling. It is advisable to sort the screws as shown below after removing

them.

If a screw cap is attached to a screw, be sure to reattach the screw cap when

z

reassembling.

BEFORE STARTING REPAIR OR SERVICING



Remove the AC adaptor or the AC cord.

z

Remove accessories such as the music stand.

z

CTK-1100

– 8 –

DISASSEMBLY



PANEL UNITA.

Undo 11 screws on the bottom surface of the main unit.A-1.

Turn over the panel unit.A-2.

Unsolder two battery lead wires.A-3.

Unsolder one FFC.A-4.

Lead wire (Red)

Lead wire (Black) FFC (M800-KYA2)

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