Casio_CTK-330_Service_Manual电路图.pdf

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1、POWER/MODE FINGERED CASIO CHORD NORMAL OFF ON VOLUMESYNCHRO/? FILL-IN START/? STOP TEMPO TRANSPOSE/? TUNE PIANO 00PIANO 1 01PIANO 2 02HONKY-TONK 03STUDIO PIANO 04ELEC PIANO 1 05ELEC PIANO 2 06ELEC PIANO 3 07ELEC PIANO 4 08HARPSICHORD 09CLAVELECTRO 100 TONES ORGAN 10ELEC ORGAN 1 11ELEC ORGAN 2 12ELEC

2、 ORGAN 3 13ELEC ORGAN 4 14CHURCH ORGAN 15PIPE ORGAN 16REED ORGAN 17ACCORDION 18BANDONEON 19HARMONICA GUITAR/BASS 20GUT GUITAR 21ACOUS GUITAR 22JAZZ GUITAR 23ELEC GUITAR 24MUTE GUITAR 25DIST GUITAR 26WOOD BASS 27ELEC BASS 28SLAP BASS 29BANJO STRINGS/ENSEMBLE 30VIOLIN 31CELLO 32HARP 33STRINGS 1 34STRI

3、NGS 2 35STRINGS 3 36SYNTH-STR 1 37SYNTH-STR 2 38CHIOR 39VOICE BRASS 40TRUMPET 41TUBA 42BRASS SECTION 43FRENCH HORN 1 44FRENCH HORN 2 45BRASS 1 46BRASS 2 47SYNTH-BRASS 1 48SYNTH-BRASS 2 49SYNTH-BRASS 3 REED/PIPE 50SOPRANO SAX 51ALTO SAX 52TENOR SAX 53OBOE 54CLARINET 55PICCORO 56FLUTE 57RECORDER 58FLU

4、TE ENSEMBLE 59WHISTLE SYNTH-SOUND 1 60SYNTH-LEAD 1 61SYNTH-LEAD 2 62SYNTH-LEAD 3 63SYNTH-CALLIOPE 64SYNTH-PAD 1 65SYNTH-PAD 2 66SYNTH-PAD 3 67GRASS HARMONICA 68COUNTRY FARM 69SYNTH-BASS SYNTH-SOUND 2 70PEAL DROP 71COSMIC SOUND 72SOUNDTRACK 73SPACE PAD 74SYNTH-SFX 75SE 1 (VEHICLE) 76SE 2 (TELEPHONE)

5、77SE 3 (SPACE) 78SE 4 (INVADER) 79SE 5 (FUNNY) LAYER 80STRINGS PIANO 81STRINGS EP 82CHOIR EP 83CHOIR ORGAN 84STRINGS GUITAR 85STRINGS HARP 86BRASS STRINGS 87VIB PAD 8812 STR GUITAR 89CHOIR STRINGS SPLIT/PERCUSSION 90BRASS/PIANO 91BRASS/E.PIANO 92BRASS/VIB 93BRASS/G.GUITAR 94BRASS/D.GUITAR 95STRINGS/

6、PIANO 96STRINGS/TRUMPET 97VIBRAPHONE 98MARIMBA 99PERCUSSION POPS 00POP FUSION 01BALLAD 02POP BALLAD 03RAP POP 04SOUL BALLAD 05FUNKY POP 0616 BEAT 078 BEAT 1 088 BEAT 2 09POPS 50 RHYTHMS20 SONG BANK ROCK 10ROCK WALTZ 11SLOW ROCK 12SOFT ROCK 1 13SOFT ROCK 2 14FOLKIE POP 1560 S SOUL 16ROCK 17HEAVY META

7、L 1850S ROCK 19CHICAGO BLUES JAZZ/DANCE 20BIG BAND 21SLOW SWING 22FOX TROT 23JAZZ WALTZ 24ACID JAZZ 25LATIM FUSION 26TRANCE 27DISCO 28RAP 29FUNK EUROPEAN/LATIN 30POLKA 31MARCH 32SLOW WALTZ 33WALTZ 34TANGO 35BOSSA NOVA 36SAMBA 37MAMBO 38RHUMBA 39CHA-CHA-CHA VARIOUS 40MERENGUE 41RAGGAE 42SKA 43TEX-MEX

8、 44FOLKLORE 45COUNTRY 46SLOW GOSPEL 47ADANI 48BAROQUE 49ENKA 00SERENADE EINE KLEINE NACHTMUSIK 01TWINKLE TWINKLE LITTLE STAR 02ACH DU LIEBER AUGUSTIN 03AMAZING GRACE 04ODE TO JOY 05LONDON BRIDGE 06LONDONDERRY AIR 07GREENSLEEVES 08AULD LANG SYNE 09JOY TO THE WORLD 10JINGLE BELLS 11 12YANKEE DOODLE 13

9、SANTA LUCIA 14WHEN THE SAINTS GO MARCHING IN 15ALOHA OE 16SPRING FROM THE FOUR SEASONS 17LITTLE BROWN JUG 18MARCH FROM THE NUTCRACKER 19THE ENTERTAINER O CHRISTMAS TREE 0 TONE RHYTHM SONG? BANK MELODY? ON/OFF 5 1 6 2 7 3 8 4 9 MULTI FUNCTION DISPLAY ELECTRIONIC KEYBOARD CTK-330 CTK-330 RadioFans.CN

10、收音机爱 好者资料库 2 CONTENTS Specifications . 2 Block Diagram. 3 Circuit Description . 4 Major Waveforms . 7 Schematic Diagrams .8 Printed Circuit Board . 10 Exploded View . 11 Parts List . 13 SPECIFICATIONS GENERAL Number of keys:49 Polyphonic:12-note Preset tones:100 Auto-rhythms:50, Tempo control: 40 to

11、 255 Accompaniment:Casio Chord, Fingered Song bank:20-tune Tuning control:440 Hz 50 cents Built-in speakers:4 inch dia. 2 W input rating: 2 pcs Terminals:Stereo standard Jack (Output impedance: 100 ohm, Output voltage: 3 V (rms) MAX Power source:2-way AC or DC source AC: AC adapter DC: 6 AA size dry

12、 batteries Power consumption:7.2 W Dimensions(HWD):988 311 125 mm (38-15/16 12-1/4 4-15/16 inches) Weight:3.5 kg (7.7 lbs) excluding batteries ELECTRICAL Current drain with 9 V DC: No sound output120 mA 30% Maximum volume650 mA 30% with white keys C1 to G2 pressed in Synth-Lead 1 Volume: 9 Phone out

13、put Level (Vrms with 8 ohm load each channel): with key E3 pressed in Synth-Lead 180 mV 30% Sound Pressure (at 10 cm away from speaker): with key E3 pressed in Synth-Lead 1100 dB 10 dB Minimum operating voltage:6.0 V RadioFans.CN 收音机爱 好者资料库 3 CPU? MSM 6755B-08? LSI101 Keyboard ButtonsLED Reset IC? I

14、C102 Oscillator? X101, Q107 Q111 Power Supply Circuit? Q101 Q104, D106 Power Amp.? LA4598? IC101 Filter (L)? Q105 Filter (R)? Q106 Output DC+9V IN VC?AVDD DVDD LVDD APO CC1 CC3 La Lg,? Lp KO8 ? KO11 KI0 KI7 KO0 KO7 BLOCK DIAGRAM RadioFans.CN 收音机爱 好者资料库 2 KI0KI1KI2KI3KI4KI5KI6KI7 KO0C2G#2E3C4G#4E5C6

15、KO1C#2A2F3C#4A4F5 KO2D2A#2F#3D4A#4F#5 KO3D#2B2G3D#4B4G5 KO4E2C3G#3E4C5G#5 KO5F2C#3A3F4C#5A5 KO6F#2D3A#3F#4D5A#5 KO7G2D#3B3G4D#5B5 KO801234Start/Stop Tempo Up Volume Up KO956789 Tempo Down Volume Down Synchro/ Fill-In KO10ToneRhythm Song Bank Melody On/Off KO11Fingered CASIO Chord NormalPower Off CIR

16、CUIT DESCRIPTION KEY MATRIX NOMENCLATURE OF KEYS C2 C#2D#2F#2 G#2A#2C#3D#3F#3 G#3A#3C#4D#4F#4 G#4A#4C#5D#5F#5 G#5A#5 D2E2F2G2A2B2C3D3E3F3G3A3B3C4D4E4F4G4A4B4C5D5E5F5G5A5B5C6 3 Amp.? LA4598 Filter? Block CPU? MSM6755B-08 Pin No.TerminalIn/OutFunction 1 29MA14 NC2Not used. 30DGNDInGround (0 V) source

17、31DVCCIn+5 V source 32, 33XTLO, XTLIIn/Out20 MHz clock input/output 34NC3Not used. Connected to ground. 35RSTBInReset signal input 36P24/RXDNot used. Connected to +5 V. 37P25/TXDNot used. 38NMIInPower on signal input. Connected to +5 V. 39APOOutAPO (Auto Power Off) signal output 40NC4Not used. 41REF

18、HOutTerminal for the built-in DAC 42, 43NC5, NC6Not used. 44DAOROutRight channel sound waveform output 45NC7Not used. 46AVdacIn+5 V source for the built-in DAC and ADC 47DAOLOutLeft channel sound waveform output 48REFLOutTerminal for the built-in DAC and ADC 49AGdacIn Ground source for the built-in

19、DAC 50AGadcInGround source for the built-in ADC 51ANINot used. Connected to ground. 52AVadcIn+5 V source for the internal ADC 53NC8Not used. Connected to +5 V. 54MOD0InMode selection terminal 55, 56MOD1, MOD2InMode selection terminal 57KO9/P40InAPO cancelation signal input 58 65KI0/P30 KI7/P37InTerm

20、inals for key/button input signal 66 73KO1/P50 KO8/P57OutTerminals for key scan signal 74 77P20 P23OutTerminals for button scan signal 78NC9Not used. 79LVCCIn+5 V source 80 82CC1 CC3OutLED common signal output 83 87Not used. 88 95La Lg, LpOutLED segment signal output 96LGNDInGround (0 V) source 97 1

21、00Not used. CPU (LSI101: MSM6755B-06) The CPU contains a sound data ROM and a DAC (Digital to Analog Convertor), and it provides left and right channel sound waveforms in accordance with the pressed key and the selected tone. The following table shows the pin functions of LSI101. FILTER BLOCK Since

22、the sound signal from the CPU is a stepped waveform, the filter block is added to smooth the waveform. 4 CPU? LSI101? MSM6755B LaLg, Lp CC1CC3 LVDD Q106Q108? LED Driver POWER AMPLIFIER (IC101: LA4598) The power amplifier is a two-channel amplifier with standby switch. The following table shows the p

23、in function of IC101. Pin No.TerminalIn/OutFunction 1Power GNDIn Ground (0 V) source 2Ch1 B.S. Terminal for a bootstrap capacitor 3Ch1 OUTOut Channel 1 output 4VCCIn +9 V source 5Ch1 N.F.In Negative feedback input 6Ch1 INIn Channel 1 input 7D.C. Terminal for a decoupling capacitor 8Pre GNDIn Ground

24、(0 V) source 9Stand byIn Power control signal input. 0 V: Off, +9 V: On 10Ch2 INIn Channel 2 input 11Ch2 N.F.In Negative feedback input 12Ch2 OUTOut Channel 2 output 13Ch2 B.S. Terminal for a bootstrap capacitor 14NC Not used LED DRIVING 5 Amp.? LA4598 Filter? Block CPU? MSM6755B-08 Pin No.TerminalI

25、n/OutFunction 1 29MA14 NC2Not used. 30DGNDInGround (0 V) source 31DVCCIn+5 V source 32, 33XTLO, XTLIIn/Out20 MHz clock input/output 34NC3Not used. Connected to ground. 35RSTBInReset signal input 36P24/RXDNot used. Connected to +5 V. 37P25/TXDNot used. 38NMIInPower on signal input. Connected to +5 V.

26、 39APOOutAPO (Auto Power Off) signal output 40NC4Not used. 41REFHOutTerminal for the built-in DAC 42, 43NC5, NC6Not used. 44DAOROutRight channel sound waveform output 45NC7Not used. 46AVdacIn+5 V source for the built-in DAC and ADC 47DAOLOutLeft channel sound waveform output 48REFLOutTerminal for th

27、e built-in DAC and ADC 49AGdacIn Ground source for the built-in DAC 50AGadcInGround source for the built-in ADC 51ANINot used. Connected to ground. 52AVadcIn+5 V source for the internal ADC 53NC8Not used. Connected to +5 V. 54MOD0InMode selection terminal 55, 56MOD1, MOD2InMode selection terminal 57

28、KO9/P40InAPO cancelation signal input 58 65KI0/P30 KI7/P37InTerminals for key/button input signal 66 73KO1/P50 KO8/P57OutTerminals for key scan signal 74 77P20 P23OutTerminals for button scan signal 78NC9Not used. 79LVCCIn+5 V source 80 82CC1 CC3OutLED common signal output 83 87Not used. 88 95La Lg,

29、 LpOutLED segment signal output 96LGNDInGround (0 V) source 97 100Not used. CPU (LSI101: MSM6755B-06) The CPU contains a sound data ROM and a DAC (Digital to Analog Convertor), and it provides left and right channel sound waveforms in accordance with the pressed key and the selected tone. The follow

30、ing table shows the pin functions of LSI101. FILTER BLOCK Since the sound signal from the CPU is a stepped waveform, the filter block is added to smooth the waveform. 6 CPU? LSI101? MSM6755B LaLg, Lp CC1CC3 LVDD Q106Q108? LED Driver POWER AMPLIFIER (IC101: LA4598) The power amplifier is a two-channe

31、l amplifier with standby switch. The following table shows the pin function of IC101. Pin No.TerminalIn/OutFunction 1Power GNDIn Ground (0 V) source 2Ch1 B.S. Terminal for a bootstrap capacitor 3Ch1 OUTOut Channel 1 output 4VCCIn +9 V source 5Ch1 N.F.In Negative feedback input 6Ch1 INIn Channel 1 in

32、put 7D.C. Terminal for a decoupling capacitor 8Pre GNDIn Ground (0 V) source 9Stand byIn Power control signal input. 0 V: Off, +9 V: On 10Ch2 INIn Channel 2 input 11Ch2 N.F.In Negative feedback input 12Ch2 OUTOut Channel 2 output 13Ch2 B.S. Terminal for a bootstrap capacitor 14NC Not used LED DRIVIN

33、G 7 MAJOR WAVEFORMS 1 Clock pulse MSM6755B-08 pin 32 2 Reset signal MSM6755B-08 pin 35 3 APO signal MSM6755B-08 pin 39 1 4 5 2 3 7 6 4 Sound waveform (R-ch) MSM6755B-08 pin 44 5 Sound waveform (L-ch) MSM6755B-08 pin 47 6 Button scan signal KO10 MSM6755B-08 pin 76 7 Button scan signal KO11 MSM6755B-0

34、8 pin 77 Tone:whistle Key:A4 Volume: 8 LED common signal CC2 MSM6755B-08 pin 81 9 LED common signal CC3 MSM6755B-08 pin 82 8 9 8 SCHEMATIC DIAGRAMS Main PCB KDM441-MA1M/MA2M 1 23 5 4 7 6 98 9 Keyboard PCBs KDM4910K-KY1M/KY2M 10 PRINTED CIRCUIT BOARD Main PCB KDM441-MA1M 452316789 EXPLODED VIEW 1 2 3

35、 4 5 6 7 8 9 10 11 12 13 14 14 R-1 R-2 R-3 R-4 R-5 R-6 11 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 cha

36、nge with- out 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 CTK-330 ItemCode No.Parts NameSpecificationQR Main PCB 16925 4480Main PCB assy M4

37、41-MA1,2MM140451*11 B LSI1012012 3948LSI, CPUMSM6755B-081 A IC1012114 2891IC, Amp.LA45981 A IC1022105 5922ICRE5VL40AA-TZ1 A Q1012250 0168Transistor2SA854SR-TP-T1 A Q102, Q105 - Q110, 2220 1387Transistor2SC1740SQ-TP-T8 A Q112 Q103, Q1042253 0448Transistor2SD1858Q,R-TV6-T2 A Q1112200 2449Transistor2SA

38、933SQ-TP-T1 A D1012390 0371DiodeDSK10B-BT-T1 B D1022390 1323DiodeRB100A-T32-T1 B D103, D105, 2390 1344Diode1SS133T-77-T23 C D107 - D127 D1062360 2002Diode, ZenerMTZJ5.6B-T77-T1 B D1282390 2828DiodeRB441Q-40T-771 B D1332360 1715Diode, ZenerMTZJ3.9B-T77-T1 B LED1012370 1309LEDLB-603VF11 B X1012590 152

39、6Ceramic oscillatorEFO-EN2005C41 B J1013501 7049Jack, PowerHEC2305-01-3301 B J1023612 0665Jack, PhoneYKB21-50061 C Keyboard PCB 26925 4490Keyboard PCB assy M140449*11 C D701 - D7492301 0101Diode1S2473T-77-T49 B Mechanical Parts 36922 2720White key set, LT-CBM312118*13 A 46922 2730White key set, LT-C

40、SM312118*21 A 56922 2740Black key set, LT-10PM111726-12 A 66922 4000Key contact rubber, 31-contactM111765-11 A 76923 2390Key contact rubber, 18-contactM240025-11 A 86925 4500Battery coverM340528*11 B 96925 4510Rubber buttonM240463-11 B 106925 4520Rubber buttonM240464-11 B 116909 5890Slide contactCSB-12D1 B 126921 5030Slide knobM311859-11 B 136925 4530Display plateM340511-11 C 143831 0770SpeakerS10JA13A2 B Accessory 6916 7880Music standM310827-11 B Notes: Q Used quantity R Rank 13 MA0800761AAug, 1996