Casio_WK-3700_Service_Manual电路图.pdf

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1、ELECTRONIC KEYBOARD WK-3700 MAY. 2005 WK-3700 RadioFans.CN 收音机爱 好者资料库 INDEX CONTENTS Specifications - 1 Block Diagram - 3 Circuit Description - 4 Printed Circuit Board - 6 Disassembly - 11 Diagnostic Program- 17 Exploded View - 20 Parts List- 21 Schematic Diagrams- 25 RadioFans.CN 收音机爱 好者资料库 1 SPECI

2、FICATIONS GENERAL Keyboard:76 standard-size keys, 6 1/4 octaves with touch response (OFF/1/2/3) Tones:332 Advanced Tones + 200 Preset Tones + 18 Drum Sets + 100 standard user tones + 20 user tones with waves* + 4 user drum sets with waves* + 50 drawbar organ tones + 100 user drawbar organ tones (824

3、 tones total); layer/split Polyphony:32 notes maximum (10 for certain tones) Drawbar Organ Function Drawbars:9 (16, 5 1/3, 8, 4, 2 2/3, 2, 1 3/5, 1 1/3, 1) Percussion:Second, Third Click:On, Off Effects:DSP (200 types: internal, 100 user areas) + Reverb (16 types) + Chorus (16 types) + Equalizer (10

4、 types, 4 bands) Auto Accompaniment Rhythm Patterns:176 (internal, 16 user areas*) Tempo:Variable (226 steps, = 30 to 255) Chords:3 fingering methods (CASIO CHORD, FINGERED, FULL RANGE CHORD) Rhythm Controller:START/STOP, INTRO/ENDING 1 and 2, VARIATION/FILL-IN 1 and 2, SYNCHRO/FILL-IN NEXT Accomp V

5、olume:0 to 127 (128 steps) One-touch Presets:Recalls settings for tone, tempo, layer on/off, and harmonize on/off in accordance with rhythm. Auto Harmonize:10 types : Automatic addition of notes that harmonize with melody note in accordance with specified Auto Accompaniment chords. Memory Function S

6、ongs:5 Recording Tracks:6 (2 through 6 are melody tracks) Recording Methods:Real-time, step Memory Capacity:Approximately 10,000 notes (total for 5 songs) Edit Function:Equipped Demo Tunes:3 Synthesizer Function Parameters:Attack time; release time; resonance; cutoff frequency; vibrato type; vibrato

7、 delay; vibrato depth; vibrato rate; octave shift; level; touch sense; reverb send; chorus send; DSP line; DSP type; DSP parameter; Modulation Assign Registration Memory Number of Setups:32 (4 setups 8 banks) Memory Contents:Tone, Rhythm, Tempo, Layer on/off, Split on/off, Split point, Harmonize on/

8、off, Mixer settings (Channels 1 to 10), Effect settings, Touch Response settings, Assignable jack setting, Transpose, Tuning, Accompaniment volume setting, Pitch bend range, Auto Harmonize type, MODE button setting, Synchro standby state, Mixer Hold, DSP Hold, Synthesizer Mode parameters Mixer Funct

9、ion Channels:16 Parameters:Tone; part on/off; volume; pan pot; octave shift; coarse tune; fine tune; reverb send; chorus send; DSP line; DSP level, DSP pan, DSP system reverb send, DSP system chorus send MIDI:16 multi-timbre receive, GM Level 1 standard Other Functions Pitch Bend Range:Adjustable (1

10、2 semitones upwards and downwards) Modulation:Equipped Transpose:49 steps (24 semitones to +24 semitones) Tuning:Variable (A4 = approximately 440Hz 100 cents) LCD:Adjustable contrast Tune NumberNameComposerPlay Time 0White WinterHage Software2:32 1Serendipity WaltzTECH-NOTE INTERNATIONAL LTD.2:01 2S

11、treet BeatzSteve Turner2:10 RadioFans.CN 收音机爱 好者资料库 2 SMF Player:Flash memory storage for up to 200 files* Supported Format:SMF0 Flash Memory Capacity:4MB Shared Area:Approximately 3.5MB (waveform data, accompaniment data, SMF data) Further storage of waveform, accompaniment, and SMF data becomes im

12、possible after the total of such data reaches approximately 3.5MB. Card Slot3.3V SmartMediaTM (8MB, 16MB, 32MB, 64MB, 128MB) Functions:Save and load of user tones, user songs, and registration data; playback of SMF; card formatting; file delete; file rename Floppy Disk Drive Type:3.5 FDD Formats:2DD

13、 (720KB MS-DOS format) 2HD (1.44MB MS-DOS format) Functions:Save and load of user tones, user songs, and registration data; playback of SMF; disk formatting; file delete; file rename Terminals MIDI Terminals:IN, OUT Sustain/Assignable Terminal:Standard jack (sustain, sostenuto, soft, rhythm start/st

14、op) Headphones:Stereo standard jack Output Impedance : 200 Output Voltage : 250mV (RMS) MAX Line Out (R, L/MONO):Standard jack 2 Output Impedance : 3k Output Voltage : 1.5V (RMS) MAX Power Supply Terminal:12V DC Power Supply:Dual power supply system Batteries:6 D-size batteries Battery Life:Approxim

15、ately 4 hours continuous operation on alkaline batteries AC Adaptor:AD-12 Auto Power Off:Turns power off approximately six minutes after last key operation. Enabled under battery power only, can be disabled manually. Speaker Output:6.1W + 6.1W Power consumption:12V 18W Dimensions:122.3 42.3 16.0 cm

16、(48 3/16 14 11/16 5 5/16 inch) Weight:Approximately 10.0 kg (22.0 lbs) (without batteries) * The same memory area is used to store waveform data, accompaniment data, and SMF data. ELECTRICAL Current drain with 12 V DC: Consumption Current1430 mA 20 % Consumption Current at idle230 mA 20 % with 16 ke

17、ys from E1 to F3 pressed in 479 Ocarinag Volume: maximum, Velocity: maximum Speaker output level (Vrms with 8 load each channel): with key L(E1)/R(G1) in 479 Ocarinag Volume: maximun, Velocity: maximum6000 mV 20 % Phone output level (Vrms with 32 load each channel): with key L(E7)/R(G7) in 479 Ocari

18、nag Volume: maximun, Velocity: maximum400 mV 20 % Output level (Vrms with 47 K load each channel): with key L(E1)/R(G1) in 479 Ocarinag Volume: maximun, Velocity: maximum3200 mV 20 % 3 BLOCK DIAGRAM CONSOLE PCB (M734-CN1M) CONSOLE PCB (M734-CN8M) Keyboard PCB (JSM764T-KY1M/ KY2M) SUB PCB (M734-MA2M)

19、 MAIN PCB (M737-MD1) LCD PCB (M734-LCD1M) CONSOLE PCB (M734-CN5M) CONSOLE PCB (M734-CN4M) MIDI RAM (1Mbit) IC4 CY62128VLL-70AZI Assingnable Jack Reset IC IC8 R1151N001C-TR RESET 16.384MHz EA0 EA15, EA18 ED12 ED19 Filter IC202, IC203 DAC IC5 uPD63200GS Power Amplifier IC205 LA4636 Power Supply Circui

20、t Q201 Q205, IC201, D205 (9-12V) VC (9-12V) VCP APO Battery Speakers (L) (R) Phones/Output LOUT CONT E R/W RS ROUT (5V) VF5 (5V) VD5 FLASH ROM (32MBit) IC2 LH28F320BFHPBTL70 RAM (2Mbit) IC6 LP62S2048X-70LLT/Q ROM (128Mbit) IC36 MR27V12800J137TN3D IC17 TC74LCX245FT FDD Controller IC21 ML6757GA-115 Ke

21、yboard IN OUT LCD Controller ML9040-B02GA (IC401) D201 LINE OUT LR 3.5 FDD UnitSmart media Unit MA0 MA20 MA0 MA21 MA0 MA16, MA25 MA0 MA13, MA25 CONSOLE PCB (M734-CN2M) SUB PCB (M734-MA3M) CONSOLE PCB (M734-CN3M) MD0 MD15 MD0 MD15 MD0 MD7 MD0 MD7 MD0 MD7 Q207D209 MPU IC15 uPD914AGM-3ED HUMANIZERSYNTH

22、 DRAWBER Main Volume KC0 KC7 FI0, KI0 KI2 KC0 KC3 MD0 MD15 MA0 MA3 DB0 DB7 SWCO SWC6 SWIO SWI7 PWSW RESB TXDO TXDI BUTTON/LED CONTROLLER IC301 UPD65881GK-062-9ET Buttons SI0 SI9, FI0 FI9 DSP ON/OFF KEY/BUTTON CONTROLLER IC20 TC190C020AF-001 AC ADAPTOR DC 12V 4 CIRCUIT DESCRIPTION KEY MATRIX KC0KC1KC

23、2KC3KC4KC5KC6KC7 FI0E11F11F#11G11G#11A11A#11 SI0E12F12F#12G12G#12A12A#12 FI1B11C21C#21D21D#21E21F21F#21 SI1B12C22C#22D22D#22E22F22F#22 FI2G21G#21A21A#21B21C31C#31D31 SI2G22G#22A22A#22B22C32C#32D32 FI3D#31E31F31F#31G31G#31A31A#31 SI3D#32E32F32F#32G32G#32A32A#32 FI4B31C41C#41D41D#41E41F41F#41 SI4B32C4

24、2C#42D42D#42E42F42F#42 FI5G41G#41A41A#41B41C51C#51D51 SI5G42G#42A42A#42B42C52C#52D52 FI6D#51E51F51F#51G51G#51A51A#51 SI6D#52E52F52F#52G52G#52A52A#52 FI7B51C61C#61D61D#61E61F61F#61 SI7B52C62C#62D62D#62E62F62F#62 FI8G61G#61A61A#61B61C71C#71D71 SI8G62G#62A62A#62B62C72C#72D72 FI9D#71E71F71F#71G71 SI9D#7

25、2E72F72F#72G72 Note: Each key has two contacts, the first conatct 1 and second contact 2. Key Second contact First contact FI KC SI 2 1 NOMENCLATURE OF KEYS C2 C#2 D#2F#2 G#2 A#2C#3 D#3F#3 G#3 A#3C#4 D#4F#4 G#4 A#4C#5 D#5F#5 G#5 A#5C#6 D#6F#6 G#6 A#6 D2E2F2G2A2B2C1D1E1F1G1A1B1C3D3E3F3G3A3B3 C#1 D#1F

26、#1 G#1 A#1 C4D4E4F4G4A4B4C5D5E5F5G5A5B5D6E6F6G6A6B6C6C7E1 5 BUTTON MATRIX KEY LED MATRIX KI2 AUTO HARMONIZE 0 1 7 FI10 + 3 6 DEMO KI0 LAYER 2 5 9 KI1 SPLIT 4 8 KC4 KC5 KC6 KC7 SWI4 INTRO/ ENDING 2 1 CH10 CH5 CH6 ARPEGGIATOR DSP ON/OFF SWI5 VARIATION/ FILL-IN 1 2 CH11 CH14 CH7 EXIT ? SWI2 MODE START/

27、 STOP TEMPO UP CH3 TONE EDIT 1 FEET DOWN PIANO SETTING SWI3 INTRO/ ENDING 1 BANK CH9 CH4 EFFECT EDIT STORE DRAWBER SWI0 ACCOMP VOLUME SEQ STRAGE CH1 SETTING SYNTH TONE SWI1 ONE TOUCH PRESET TEMPO DOWN SMF PLAY CH2 PART EDIT HUMANIZER RHYTHM SWI6 VARIATION/ FILL-IN 2 3 CH12 CH15 CH8 ? ? SWI7 SYNCRO/

28、FILL-IN NEXT 4 CH13 CH16 1 FEET UP ? SWC0 SWC1 SWC2 SWC3 SWC4 SWC5 SWC6 6 PRINTED CIRCUIT BOARD MAIN PCB M737-MD1 Top View Bottom View 7 SUB PCB M734-MA2M Top View Top View SUB PCB M734-MA3M 8 DISPLAY PCB M734-LCD1M Top View 9 CONSOLE PCB M734-CN1M CONSOLE PCB M734-CN4M CONSOLE PCB M734-CN3M CONSOLE

29、 PCB M734-CN2MCONSOLE PCB M734-CN5M CONSOLE PCB M734-CN6M CONSOLE PCB M734-CN7M 10 KEYBORD PCB JCM764T-KY1M KEYBORD PCB JCM764T-KY2M 11 DISASSEMBLY 1. Remove the battery cover and then the battery. 2. Remove 36 screws and then the upper case. 3.Remove 4 screws, 8 speaker cords, 2 battery cords, 1cor

30、d (PM), 5 connectors (JD, JG2, JH, JK, JJ) and then the PCB ASSY (MA2M). Speaker cords (O) Speaker cords (W) Battery cord (R) Battery cord (B) Screw Connectors Screw Screw Speaker cords (O) Speaker cords (W) Screw Connectors Screws ConnectorCord 12 4. Remove 5 screws, 5 connectors (JA, JB, JD, JE, J

31、F) and then the PCB ASSY (MA1M). Screws ConnectorsConnectors 5. Remove 8 screws, 1 connector and then the LCD ASSY (LCD1M). Note: Tighten the screws in the order from 1 to 8 when reassembling. Screws Screws Connector 36 7 1852 4 13 Connector CN1M 6. Remove the volume knob, screws, connectors and the

32、n the CN1, CN2, CN3, CN4, CN5, CN6, CN7. Screws Volume knob CN2M CN5MCN4M CN3M CN6MCN7M CN1MCN2MCN6MCN5MCN6M CN3M CN7M 14 8. Remove 29 screws and then the lower case. 7. Remove 2 screws and then the Bender assy. Screws Note: Tighten the screw with the arrow mark in the figure first when reassembling

33、. 15 10.Remove the rubber keys. Projection Note: Pay attention to the positions of the rubber keys as one of them has a different length. Match the projections of the rubber keys with the holes of the lower case when reassembling. 9. Remove 24 screws and then the PCB ASSY (KY1M, KY2M). 16 11.Remove

34、27 screws and then the white keys. 12.Remove the black keys. Note: Pay attention to the positions of the screw holes when reassembling. 17 DIAGNOSTIC PROGRAM I 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 M

35、IDI check can be skipped. I 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. 3. Release the “Cursor key UP” and “Cu

36、rsor key Down” buttons. “TEST 737” appears on the LCD. NOTE:Refer to the figure below for the LCD messages that appear during the diagnostic program. IDiagnostic program 1. Button check 1 Press “DSP” button. 2 Press buttons in the following order. NOTE: NG sound sounds when a button is defective or

37、buttons are pressed in a wrong order. LCD message appears in the area 1. G r a nndPo 514 87 2 E 3 BCDA609 1 3 2 4 5 6 7 890ABC D E FGHIJK L O P QRSTUVWXY Zabcd f g hi jk m n opqr s u t y x v w z | l e N M Y CH 9 Z CH 10 CH 11 CH 12 CH 13 _ CH 14 a CH 15 b CH 16 c DSP CH dDRAWBAR ORGAN e TONE f RHYTH

38、M g DSP h PIANO SETTING i Cursor key Up j Cursor key Right k Cursor key Down 1MODULATION 2 MODE 3ONE TOUCH PRESET 4DISK/CARD 5 ACCOMP VOLUME 6 SONG MEMORY 7 INTRO/ENDING 1 8 INTRO/ENDING 2 9VARIATION/FILL-IN 1 VARIATION/FILL-IN 2 ASYNCHRO/FILL-IN NEXT BSTART/STOP C TEMPO? DTEMPO? EBANK F REGISTRATIO

39、N 1 G REGISTRATION 2 H REGISTRATION 3 I REGISTRATION 4 J STORE KTRANSPOSE/FUNCTION L MIXER M SYNTH N EFFECT O SMF PLAYER P CH 1 Q CH 2 R CH 3 S CH 4 T CH 5 U CH 6 V CH 7 W CH 8 X UP l Cursor key Left m EXIT nAUTO HARMONIZE o SPLIT p LAYER q 0 buttons r 1 buttons s 4 buttons t 7 buttons u 8 buttons v

40、 5 buttons w 2 buttons x - buttons y + buttons z 3 buttons 6 buttons | 9 buttons DEMO MODE OTP CARD ACMP VOL SONG INT/END1 INT/END2 VAR/FIL 1 VAR/FIL 2 SYNCHRO STRT/STP TEMPO/DW TEMPO/UP BANK REGIST 1 REGIST 2 REGIST 3 REGIST 4 STORE TRAN/FUNC MIXER SYNTH EFFECT SMF CH 1 CH 2 CH 3 CH 4 CH 5 CH 6 CH

41、7 CH 8 1Ft UP CH 9 CH 10 CH 11 CH 12 CH 13 CH 14 CH 15 CH 16 DSP CH DRAWBAR TONE RHYTHM DSP PIANO UP RIGHT DOWN LEFT EXIT HARMO SPLIT LAYER 0 1 4 7 8 5 2 - + 3 6 9 DEMO SW OK Message on LCDMessage on LCDMessage on LCDMessage on LCD 18 Message on LCD 1 ACJ ON 1 SUS CHK 1 SUS ON 1 SUS OFF 1 VOLT HI 1

42、TG MAX L 1 TG MAX C 1 TG MAX R 1 ROM CHK ? 1 ROM OK 1 FMC CHK ? 1 FMC OK 1 MIDI OK 1 DRAM OK 1 CRAM OK 2. AC adaptor detection check. 1 Press “TONE” button. 2 When the instrument detects that an AC adaptor is plugged in, an OK sound sounds. “ACJ OFF” appears and an NG sound sounds when the AC adapto

43、r is not plugged (when batteries are used). 3. Sustain jack check. (If no pedal, this check can be skipped) 1 Press “RHYTHM” button. 2 Press “Sustain pedal” . 3 Release “Sustain pedal” . 4 NG sound, “OFF” sound this case, must be audible. 4. Low Voltage detection check. 1 Press “DRAWBAR ORGAN” butto

44、n. 2 OK sound must be audible. 5. MIDI IN/OUT check (If there is no MIDI cable, this check can be skipped) 1 Connect MIDI IN and MIDI OUT terminals with a MIDI cable. 2 Press “3” button. 3 Disconnect the MIDI cable. 6. Sound Source check 1 Press “7” button. 2 The MAX sin sound sounds from Left spesk

45、er. 3 Press “8” button. 4 The MAX sin sound sounds from Both spesker. 5 Press “9” button. 6 The MAX sin sound sounds from Right spesker. 7. ROM check 1 Press “INTRO/ENDING1” button. 8. Flash memory check 1 Press “INTRO/ENDING2” button. 9. Flash memory SUM check 1 Press “SONG MEMORY” button. 10. DSP

46、RAM check 1 Press “VARIATION/FILL-IN 2” button 11. CPU RAM check 1 Press “SYNCHRO/FILL-IN NEXT” button. 1 FMS CHK ? 1 FMS 3C6A 19 12. LED check 1 Press “TEMPO?” button. 2 LEDs illuminate in the following order. MODULATION FULL RANGE CHORD FINGERED CASIO CHORD DATA ACCESS DRAWBAR ORGAN DSP 13. LCD check 1 Press “TEMPO?” button. 2 Turn on all segments of the LCD. 3 Press “BANK” button. 4 The area 1 turns as check pattern. 5 Press “REGISTRATION 1” button. 6 The area 1 turns as check pattern. 7 Press “REGISTRATION 2” button. 8 Half of characters in area 1 to E turn on. 9 Press “REGISTRATION 3”