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Casio CTK-520L Service Manual

Casio CTK-520L Service Manual

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CTK-520L
100 TONES
PIANO
ORGAN
GUITAR/BASS
STRINGS/ENSEMBLE
BRASS
REED/PIPE
SYNTH-SOUND 1
SYNTH-SOUND 2
00 PIANO 1
10 ELEC ORGAN 1
20 GUT GUITAR
30 VIOLIN
40 TRUMPET
50 SOPRANO SAX
60 SYNTH-LEAD 1
70 PEARL DROP
01 PIANO 2
11 ELEC ORGAN 2
21 ACOUS GUITAR
31 CELLO
41 TUBA
51 ALTO SAX
61 SYNTH-LEAD 2
71 COSMIC SOUND
02 HONKY-TONK
12 ELEC ORGAN 3
22 JAZZ GUITAR
32 HARP
42 BRASS SECTION
52 TENOR SAX
62 SYNTH-LEAD 3
72 SOUNDTRACK
03 STUDIO PIANO
13 ELEC ORGAN 4
23 ELEC GUITAR
33 STRINGS 1
43 FRENCH HORN 1
53 OBOE
63 SYNTH-CALLIOPE
73 SPACE PAD
04 ELEC PIANO 1
14 CHURCH ORGAN
24 MUTE GUITAR
34 STRINGS 2
44 FRENCH HORN 2
54 CLARINET
64 SYNTH-PAD 1
74 SYNTH-SFX
05 ELEC PIANO 2
15 PIPE ORGAN
25 DIST GUITAR
35 STRINGS 3
45 BRASS 1
55 PICCOLO
65 SYNTH-PAD 2
75 SE 1 (VEHICLE)
06 ELEC PIANO 3
16 REED ORGAN
26 WOOD BASS
36 SYNTH-STR 1
46 BRASS 2
56 FLUTE
66 SYNTH-PAD 3
76 SE 2 (TELEPHONE)
07 ELEC PIANO 4
17 ACCORDION
27 ELEC BASS
37 SYNTH-STR 2
47 SYNTH-BRASS 1
57 RECORDER
67 GLESS HARMONICA
77 SE 3 (SPACE)
08 HARPSICHORD
18 BANDONEON
28 SLAP BASS
38 CHOIR
48 SYNTH-BRASS 2
58 FLUTE ENSEMBLE
68 COUNTRY FARM
78 SE 4 (INVADER)
09 CLAVELECTRO
19 HARMONICA
29 BANJO
39 VOICE
49 SYNTH-BRASS 3
59 WHISTLE
69 SYNTH-BASS
79 SE 5 (FUNNY)
POWER/MODE
VOLUME
SYNCHRO/
START/
TEMPO
¢
FILL-IN
STOP
¢
FINGERED
ON
CASIO CHORD
NORMAL
OFF
TRANSPOSE/TUNE
ELECTRONIC KEYBOARD
50 RHYTHMS
00 WHEN YOU WISH
LAYER
SPLIT/PERCUSSION
POPS
ROCK
JAZZ/DANCE
EUROPEAN/LATIN
VARIOUS
80 STRINGS PIANO
90 BASS/PIANO
00 POP FUSION
10 ROCK WALTZ
20 BIG BAND
30 POLKA
40 MERENGUE
81 STRINGS EP
91 BASS/E.PIANO
01 BALLAD
11 SLOW ROCK
21 SLOW SWING
31 MARCH
41 REGGAE
01 TWINKLE TWINKLE
82 CHOIR EP
92 BASS/VIB
02 POP BALLAD
12 SOFT ROCK 1
22 FOX TROT
32 SLOW WALTZ
42 SKA
83 CHOIR ORGAN
93 BASS/G.GUITAR
03 RAP POP
13 SOFT ROCK 2
23 JAZZ WALTZ
33 WALTZ
43 TEX-MEX
02 ACH DU LIEBER AUGUSTIN
84 STRINGS GUITAR
94 BASS/D.GUITAR
04 SOUL BALLAD
14 FOLKIE POP
24 ACID JAZZ
34 TANGO
44 FOLKLORE
03 AMAZING GRACE
85 STRINGS HARP
95 STRINGS/PIANO
05 FUNKY POP
15 60's SOUL
25 LATIN FUSION
35 BOSSA NOVA
45 COUNTRY
04 ODE TO JOY
86 BRASS STRINGS
96 STRINGS/TRUMPET
06 16BEAT
16 ROCK
26 TRANCE
36 SAMBA
46 SLOW GOSPEL
05 LONDON BRIDGE
87 VIB PAD
97 VIBRAPHONE
07 8BEAT 1
17 HEAVY METAL
27 DISCO
37 MAMBO
47 ADANI
06 LONDONDERRY AIR
88 12STR GUITAR
98 MARIMBA
08 8BEAT 2
18 50's ROCK
28 RAP
38 RHUMBA
48 BAROQUE
07 GREENSLEEVES
89 CHOIR STRINGS
99 PERCUSSION
09 POPS
19 CHICAGO BLUES
29 FUNK
39 CHA-CHA-CHA
49 ENKA
08 AULD LANG SYNE
TONE
SONG
3-STEP LESSON
0
1
2
3
4
BANK
STEP 1
STEP 2
STEP 3
DEMO
5
6
7
8
9
PART
TONE RHYTHM
SONG
RHYTHM
SELECT
ONE KEY PLAY
40 SONG BANK
09 JOY TO THE WORLD
18 STAND BY ME
26 THE GIRL FROM IPANEMA
36 MOON RIVER
UPON A STAR
10 JINGL BELLS
19 YOU CAN'T HURRY LOVE
27 LOVE STORY
37 FUR ELISE
11 OVER THE RAINBOW
20 IMAGINE
28 FROM THE NEW WORLD
38
TURKISH MARCH
LITTLE STAR
12 O CHRISTMAS TREE
21
I JUST CALLED TO
29
MISTY
(RONDO ALLA TURCA)
13 YANKEE DOODLE
SAY I LOVE YOU
30 MINUET(J.S.BACH)
39 INVENTION no.1
14 SANTA LUCIA
22 LITTLE BROWN JUG
31 CANON(PACHELBEL)
15 WHEN THE SAINTS
23 MARCH FROM
32 SILENT NIGHT
GO MARCHING IN
"THE NUTCRACKER"
33 CLAIR DE LUNE
16 ALOHA OE
24 THE ENTERTAINER
34
ETUDE op.10, no.3
17
25
SPRING FROM
SERENADE
"CHANSON DE L' ADIEU"
35
"THE FOUR SEASONS"
"EINE KLEINE NACHTMUSIK"
THE ENTERTAINER
CTK-520L

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Summary of Contents for Casio CTK-520L

  • Page 1 CTK-520L 100 TONES 50 RHYTHMS 40 SONG BANK 00 WHEN YOU WISH 09 JOY TO THE WORLD 18 STAND BY ME 26 THE GIRL FROM IPANEMA 36 MOON RIVER PIANO ORGAN GUITAR/BASS STRINGS/ENSEMBLE BRASS REED/PIPE SYNTH-SOUND 1 SYNTH-SOUND 2 LAYER...
  • Page 2: Table Of Contents

    CONTENTS Page Specifications ........................... 1 Block Diagram ..........................2 Circuit Description ..........................3 Major Waveforms ..........................6 Printed Circuit Boards ........................7 Schematic Diagrams ........................8 Exploded View ..........................14 Parts List ............................15...
  • Page 3: Specifications

    Transpose: F# ~ C ~ F: half-note Auto-rhythms: 50, Tempo: Adjustable, 216 steps (40 ~ 255), initial value: 120 Accompaniment: CASIO Chord, Fingered Song bank: 40-tune Digital volume control: 10 steps (0 ~ 9), initial value: 7 440 Hz ± 50 cents...
  • Page 4 — 2 —...
  • Page 5: Block Diagram

    FILTER BLOCK Since the sound signal from the CPU is a stepped waveform, the filter block is added to smooth the waveform. Amp. Filter Block IC301 Q305/Q306 LSI1 POWER AMPLIFIER (IC301: LA4598) The power amplifier is a two-channel amplifier with standby switch. The following table shows the pin function of IC301.
  • Page 6: Circuit Description

    Synchro/ Down Down Fill-In Song Part Tone Rhythm One Key One Key Demo Bank Select Casio Step-1 Step-2 Step-3 Fingered Normal Chord LED MATRIX NOMENCLATURE OF KEYS F#3 G#3 A#3 F#4 G#4 A#4 C#5 D#5 F#5 G#5 A#5 C#4 D#4...
  • Page 7 CPU (LSI1: MSM6755B-07) The CPU reads sound data from the ROM in accordance with the pressed key and the selected tone; the CPU can read rhythm data simultaneously when a rhythm pattern is selected. Then it provides the left and the right channels' waveforms separately, by converting the data into the waveforms with two built-in DACs.
  • Page 8 FILTER BLOCK Since the sound signal from the CPU is a stepped waveform, the filter block is added to smooth the waveform. Amp. Filter Block IC301 Q305/Q306 LSI1 POWER AMPLIFIER (IC301: LA4598) The power amplifier is a two-channel amplifier with standby switch. The following table shows the pin function of IC301.
  • Page 9: Major Waveforms

    MAJOR WAVEFORMS 1 APO signal 3 Clock MSM6755B-07 pin 39 MSM6755B-07 pin 32 2 Reset signal RH5VL40AA pin 1 4 Sound signal (R-ch) 6 LED drive signal LX0 JH connector pin 3 MSM6755B-07 pin 88 5 Sound signal (L-ch) 7 LED drive signal LY0 JH connector pin 1 MSM6755B-07 pin 80 Tone: Whistle (59)
  • Page 10: Printed Circuit Boards

    PRINTED CIRCUIT BOARDS Sub PCB KDM446-MA2M Top view Main PCB JCM446-MA1M Bottom view Top view — 7 —...
  • Page 11: Schematic Diagrams

    SCHEMATIC DIAGRAMS Main PCB JCM446-MA1M — 8 —...
  • Page 12 Sub PCB KDM446-MA2M — 9 —...
  • Page 13 Keyboard PCBs KDM6111K-KY1M/KY2M — 10 —...
  • Page 14 LED PCB KDM446-LD1M — 11 —...
  • Page 15 LED PCB KDM446-LD2M — 12 —...
  • Page 16 LED PCBs KDM446-LD3M/LD4M/LD5M — 13 —...
  • Page 17: Exploded View

    EXPLODED VIEW — 14 —...
  • Page 18: Parts List

    PARTS LIST CTK-520L 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. Prices and specifications are subject to change with- out prior notice.
  • Page 19 Item Code No. Parts Name Specification Main PCB 6925 1290 Main PCB ass'y M240438*1 LSI1 2012 3430 LSI, CPU MSM6755B-07 LSI2 2012 3843 LSI, ROM MX23C1010MC-12CA45 2105 5922 IC RH5VL40AA-T1 2105 4452 IC HD74HC174FPTR 2105 5796 IC HD74HC4511FPTR Q1 - Q4 2259 2555 Transistor, Chip, Digital UMW1NTL Q5 - Q8...
  • Page 20 Item Code No. Parts Name Specification 6925 1730 Black key set, LSK-5P M140369-2 6922 3990 Key contact rubber M111764-1 6922 4000 Key contact rubber M111765-1 6925 2160 Battery cover M340490*1 Accessory 6916 7880 Music stand M310827-1 Notes: Q – Quantity used per unit R –...
  • Page 21 MA0800761A Aug, 1996...