Casio_CTK-601_Service_Manual电路图.pdf

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POWER FULL RANGE CHORD FINGERED MAX START TEMPO REVERB SYNTH MIXER MEMORY STEP ACCOMP VOLUME STOP MIN CASIO CHORD NORMAL FREE SESSION TOUCH RESPONSE LAYER SPLIT CURSOR PITCH BENDMODEVOLUMEINTROSYNCHRO/ENDING NORMAL/FILL-INVAR/FILL-IN REVERB GM FREE SESSION LAYER SPLIT TOUCH RESPONSE HALL STAGE ROOM SYNTH MIXER MEMORY STEP CHORD/123456 MEMORY TRACK/DRUM PAD DEMO TRANSPOSE/ TUNE/MIDI RHYTHMTONE ENTER AMP ENVELOPE DIGITAL REVERB SYSTEM 2WAY MULTI-TRACK MEMORY 000-048 DECAY00 FLAT 049-137 SUSTAIN 01-19 VIBRATO 20-49 OTHERS PITCH ENVELOPE ENVELOPE 200 TONES100 RHYTHMS ELECTRONIC KEYBOARD CTK-601 CTK-601 RadioFans.CN 收音机爱 好者资料库 1 SPECIFICATIONS GENERAL Keyboard:61 standard-size keys, 5 octaves (with touch response on/off) Drum pads:6 Tones:200 (128 General MIDI, 32 synthesized, 8 drum, 32 user); with layer and split Rhythm instrument tones:51 Polyphony:24 notes maximum (12 for certain tones) Digital effects:3 reverb types (HALL, STAGE, ROOM) Auto accompaniment Rhythm patterns:100 Tempo:Variable (216 steps, = 40 to 255) Chords:3 fingering methods (CASIO CHORD, FINGERED, FULL RANGE CHORD) Rhythm controller:START/STOP, INTRO, NORMA/FILL-IN, VAR/FILL-IN, SYNCHRO/END- ING Accomp volume:0 to 127 (128 steps) Free session Number of patterns100 (auto-accompaniment in accordance with selected chord progres- sion) Memory function Songs:2 Recording tracks:6 (2 through 6 are melody tracks) Recording methods:Real-time, step Memory capacity:Approximately 5,200 notes (total for two songs) Edit function:Equipped Demo tunes:2 Synthesizer function Parameters:PCM set, amp envelope set, attack rate, release rate, pitch envelope set, pitch, level, touch sense, pan Mixer function Channels:16 Parameters:Program change number, volume, expression, pan, coarse tuning, fine tuning, on/off/solo MIDI:16 multi-timbre receive, GM Level 1 standard Other functions Pitch bend range:12 semitones upwards and downwards Transpose:25 steps (12 semitones to +12 semitones) Tuning:Variable (A4 = approximately 440 Hz 50 cents) CONTENTS Page Specifications. 1 Block Diagram. 3 Circuit Description. 4 Adjustment . 11 Major Waveforms . 13 Printed Circuit Boards . 14 Schematic Diagrams . 15 Exploded View . 20 Parts List . 21 RadioFans.CN 收音机爱 好者资料库 2 ELECTRICAL Current drain with 9 V DC: No sound output200 mA 20 % Maximum volume810 mA 20 % with 12 keys from C3 to B3 pressed in Square wave tone Volume: maximum, Touch response: maximum Reverb: Hall Phone output level (Vrms with 8 load each channel): with key C6 pressed in Bassoon toneR-ch100 mV 20 % Speaker output level (Vrms with 4 load each channel): with key F5 pressed in Bassoon toneR-ch1000 mV 20 % Minimum operating voltage:6.3 V About General MIDI General MIDI standardizes MIDI data for all sound source types, regardless of manufacturer. General MIDI specifies such factors as tone numbering, drum sounds, and available MIDI channels for all sound sources. This standard makes it possible for all MIDI equipment to reproduce the same nuances when playing General MIDI data, regardless of the manufacturer of the sound source. This keyboard supports General MIDI, so it can be used to play commercially available pre-recorded General MIDI data and General MIDI data send to it from a personal computer. Terminals MIDI terminals:IN, OUT Assignable terminal:Standard jack (sustain, sostenuto, soft, rhythm start/stop) Headphone/Output terminal:Stereo standard jack Output Impedance: 120 Output Voltage: 4.5 V (RMS) MAX Power supply terminal:9 V DC Power supplyDual power supply system Batteries:Six D-size batteries Battery life:Approximately 5 hours continuous operation on manganese batteries AC adaptor:AD-5 Auto power off:Turns power off approximately six minutes after last key operation. En- abled under battery power only, can be disabled manually. Power consumption:9 V - 7.7 W Speaker output:2.5 W + 2.5 W Dimensions (HWD):93.1 37.3 12.0 cm (36 11/16 14 11/16 4 3/4 inches) Weight:Approximately 5.0 kg (11.0 lbs) (without batteries) RadioFans.CN 收音机爱 好者资料库 3 KC0 KC7 FI0 FI9 SI0 SI9 KI0 KI2 PB0 PB3 P10, P13 P14, P17 Working Storage RAM (256K-bit) LSI4 TC55257DFL-70L(EL) MIDI EA0 EA14 EIO0 EIO7 Sound Source ROM (16M-bit) LSI3 UPD23C16000WGX- C51 LRCK SO BCK D/A Converter LSI6 UPD6379GR Filter Q107 Q110 Main Volume Power Amplifier IC101 TA8248K Keyboard MA0 MA19 Power Supply Circuit Q101 Q105, D106/107, D190 VCCAVDDVDD DVDDLVDD VC APO Effect RAM (256K-bit) LSI5 TC55257DFL- 70L(EL) MD0 MD7 Speakers Output MA0 MA14 MA0, MA1 LRCK, SO BCK, SINK LCD LCD Driver LSI401 SED1278F0A SEG1 SEG40 INOUT Reset IC IC1 RN5VD40AA RESET COM1 COM16 DSP LSI2 HG51B277FB-1 MD0 MD15 CPU LSI1 UPD913GF-3BA Buttons Assingnable Jack PB4 VDD Power Switch NMI FI10 P23 PA0 PA5 PB0 PB3 BLOCK DIAGRAM 4 CIRCUIT DESCRIPTION KEY MATRIX BUTTON MATRIX 0AP1AP2AP3AP 0BP egnaRl l uF drohC o r t nI hcuoT esnopseR breveR 1BPdereg n i F / l amroN nI - l l iF no i sseSeerF pmoccA emu l oV 2BPdrohCo i saC /orhcnyS gn i dnE reyaLhtnyS 3BP l a mroN /no i ta i raV nI - l l iF t i l pSre x i M 0CK1CK2CK3CK4CK5CK6CK7CK 01IF daPmurD 3 daPmurD 1 dneBhc t iP H H retnE 96+enoT 0IK daPmurD 4 daPmurD 2 dneBhc t iP G / t ratS potS 83mh t y hR 1IK daPmurD 5 petS opmeT H E720omeD 2IK daPmurD 6 yromeM opmeT G F451 /esopsnarT IDIM/enuT KC0KC1KC2KC3KC4KC5KC6KC7 FI0C2 (1)C#2 (1)D2 (1)D#2 (1)E2 (1)F2 (1)F#2 (1)G2 (1) SI0C2 (2)C#2 (2)D2 (2)D#2 (2(E2 (2)F2 (2)F#2 (2)G2 (2) FI1G#2 (1)A2 (1)A#2 (1)B2 (1)C3 (1)C#3 (1)D3 (1)D#3 (1) SI1G#2 (2)A2 (2)A#2 (2)B2 (2)C3 (2)C#3 (2)D3 (2)D#3 (2) FI2E3 (1)F3 (1)F#3 (1)G3 (1)G#3 (1)A3 (1)A#3 (1)B3 (1) SI2E3 (2)F3 (2)F#3 (2)G3 (2)G#3 (2)A3 (2)A#3 (2)B3 (2) FI3C4 (1)C#4 (1)D4 (1)D#4 (1)E4 (1)F4 (1)F#4 (1)G4 (1) SI3C4 (2)C#4 (2)D4 (2)D#4 (2)E4 (2)F4 (2)F#4 (2)G4 (2) FI4G#4 (1)A4 (1)A#4 (1)B4 (1)C5 (1)C#5 (1)D5 (1)D#5 (1) SI4G#4 (2)A4 (2)A#4 (2)B4 (2)C5 (2)C#5 (2)D5 (2)D#5 (2) FI5E5 (1)F5 (1)F#5 (1)G5 (1)G#5 (1)A5 (1)A#5 (1)B5 (1) SI5E5 (2)F5 (2)F#5 (2)G5 (2)G#5 (2)A5 (2)A#5 (2)B5 (2) FI6C6 (1)C#6 (1)D6 (1)D#6 (1)E6 (1)F6 (1)F#6 (1)G6 (1) SI6C6 (2)C6# (2)D6 (2)D#6 (2)E6 (2)F6 (2)F#6 (2)G6 (1) FI7G#6 (1)A6 (1)A#6 (1)B6 (1)C7 (1) SI7G#6 (2)A6 (2)A#6 (2)B6 (2)C7 (2) 5 Reset IC IC1 RN5VD40AA DSP LSI2 HG51B277FB-1 VDD Reset signal To power supply circuit VDD Battery set RESET VDD POWER From power switch NMI APO PLE CPU LSI1 UPD913GF-3BA SCKO F#3 G#3 A#3C#4 D#4F#4 G#4 A#4 C#5 D#5F#5G#5 A#5 F3G3A3B3C4D4E4F4G4A4B4C5D5E5F5G5A5B5C6 D#3 C2D2E2F2G2A2B2C3D3E3B6A6G6F6E6D6C7 C#3A#2G#2F#2D#2C#2A#6G#6F#6D#6C#6 Key Second contact (2) First contact (1) FI KC SI Note: Each key has two contacts, the first conatct (1) and second contact (2). POWER SUPPLY CIRCUIT The power supply circuit generates five voltages as shown in the following table. VDD voltage is always generated. The others are controlled by APO signal from the CPU. NOMENCLATURE OF KEYS RESET CIRCUIT When batteries are set or an AC adapter is connected, the reset IC provides a low pulse to the CPU. The CPU then initializes its internal circuit, and clears the working storage RAM. When the power switch is pressed, the CPU receives a low pulse of POWER signal. The CPU sends APO signal to the power supply circuit, also sends a reset signal to the DSP. emaNega t l oVfono i t areporoF DDVV5+MAR t c e f f E,MARegaro t s gn i kroW,MORecruosdnuoS,PSD,CIteseR,UPC DDVDV5+kca j IDIM , k c a j n i a t s uS , k c a j rewoP , r ev i rdDCL DDVAV5+ret l iF,CAD DDVLV6.5+revr i dDCL CCVV9+pma l to l iP , r e i f i l pmarewoP 6 CPU (LSI1: UPD913GF-3BA) The 16-bit CPU contains a 1k-byte RAM, three 8-bit I/O ports, two timers, a key controller and serial interfaces. The CPU detects key velocity by counting the time between first-key input signal FI and second-key SI from the keyboard. The CPU reads sound data and velocity data from the sound source ROM in accordance with the selected tone; the CPU can read rhythm data simultaneously when a rhythm pattern is selected. Then the CPU provides 16-bit serial sound data to the DSP. The CPU also controls MIDI input/output and stores sequencer data into the working storage RAM. The following table shows the pin functions of LSI1. .oNniPlanimreTtuO/nIno i t cnuF 10DXTtuOtuptuo l a ng i sIDIM 20DXRnItupn i l ang i sIDIM 30KCStuOtuptuo l a ng i s) f fOrewoPotuA(OPA 5,42DXR,1DXTtuO/nIrev i rdDCLehtrofsubataD 61KCStuOtuptuoes l upgn i z i norhcnysZHM1 7CCVAnIecruos)V5+(DDVD 80NAnI . l a n i mretno i t cetedrotpadaCA V0semocebdnase i re t t abybderewop s i draobyekehtnehwV5+ .de t c ennoc s i rotpadaCAnehwno i t cnufOPAeht l ecnacot 91NA.dnuorgotde t c ennoC.desutoN 01DNGAnIecruos)V0(dnuorG 11KCBtuOtuptuokco l c t i B 21OStuOtuptuoataddnuosl a i reS 31KCRLtuOtuptuokco l cdroW 41DNGnIecruos)V0(dnuorG 61,511TLX,0TLXtuO/nItuptuo / t up n i kco l czHM02 71CCVnIecruosV5+ 91,811DM,0DMnIl a n i mretno i t ce l esedoM 02BTSRnItupn i l ang i steseR 12IMNnItupn i l ang i sNOrewoP 2201P/TNItuO/nIrev i rdDCLehtrofsubataD 0332 3IF0IF 3IS0IS nI l a ng i stup n i yekrof l a n i mreT 83137CK0CKtuO l a ng i snacsyekrof l a n i mreT 6493 7IF4IF 7IS4IS nI l a ng i stup n i yekrof l a n i mreT 0574 9IF,8IF 9IS,8IS desutoN 1501IFnIl ang i stup n i no t t ubrof l a n i mreT 2532P/01IStuOrev i rdDCLehtrof l ang i se l banep i hC 55352IK0IKnIl ang i stup n i no t t ubrof l a n i mreT 65BNWMtuOPSDehtrof l ang i se l baneet i rW 677571AM0AMtuOsubsserddA 770BSCMtuOMORecruosdnuosehtroftuptuo l a ng i se l banep i hC 871BSCMtuOdesutoN 972BSCMtuOPSDehtroftuptuo l a ng i se l banep i hC 7 DIGITAL SIGNAL PROCESSOR (LSI2: HG51B227FB-1) The DSP receives 16-bit serial sound data output from the CPU and adds the selected effect to the sound data using the effect RAM. Then the DSP provides the sound data to the DAC. The DSP also controls button input/ output. The following table shows the pin functions of LSI2. .oNniPlanimreTtuO/nIno i t cnuF 08CCVnIecruosV5+ 18DNGnIecruos)V0(dnuorG 28BDRMtuOMORecruosdnuosehtroftuptuo l a ng i se l banedaeR 893851DM0DMtuO/nIsubataD 99ELPtuOPSDehtroftuptuo l a ng i steseR 00171PtuO/nIrev i rdDCLehtrofsubataD .oNniPlanimreTtuO/nIno i t cnuF 08,313BP0BPnIs l a n i mrettup n i no t t uB 44BPnItup n i kcaJELBANGISSA 5OStuOCADehtroftuptuoataddnuosl a i reS 6OKCWtuOCADehtroftuptuokco l cdroW 73DDVnIecruosV5+ 8TSETdesutoN 9BSERnItupn i l ang i steseR 012SSVnIecruos)V0(dnuorG 21,11TUOX,NIXtuO/nItuptuo / t up n i kco l czHM02 31IKCWnIUPCehtmo r f tup n i kco l cdroW 41ISnIUPCehtmo r f tup n i ataddnuosl a i reS 51IKCBnIUPCehtmo r f tup n i kco l c t i B 61CNISnItup n i es l upgn i z i norhcnyszHM1 712DDVnIecruosV5+ 52817OI0OItuO/nIsubataD 62BECRtuOMARegaro t s gn i krowehtroftuptuo l a ng i se l banep i hC 723SSVnIecruos)V0(dnuorG 821DAnIsubsserddA 92BEOtuOMARegaro t s gn i krowrof l ang i se l banetuptuO 03BEWnI l a ng i se l baneet i rW 133DDVnIecruosV5+ 232ECnI.ev i t cah g i H . t upn i l ang i se l banep i hC 330DAnIsubsserddA 43B1ECnI.ev i t cawoL . t upn i l ang i se l banep i hC 34,14537OIE0OIEtuO/nIMAR t c e f f eehtrofsubataD ,8464,44,24 16,9515 21AE0AEtuOMAR t c e f f eehtrofsubsserddA 54BECEtuOMAR t c e f f eehtroftuptuo l a ng i se l banep i hC Pin No.TerminalIn/OutFunction 49EOEBOutRead enable signal output for the effect RAM 50VSS3InGround(0V) source 60EWEBOutWrite enable signal output for the effect RAM 62,66,70,74,78VSS2InGround source 63,67,71,75,79VDD2In+5 V source 64,65,68,69, 72,73 PA0PA5OutButton scan signal output 76,77PA6/7OutNot used LCD DRIVER (LSI401:SED1278F0A) The LCD driver can drive a dot matrix LCD having 40 segment and 16 common lines. The LSI contains 240 graphic symbols in the built-in character generator ROM, and stores 80 characters in the built-in display data RAM. In accordance with command from the CPU, the LSI is capable of displaying up to 16 characters simultaneously. the following table shows the pin functions of LSI 401. Pin No.TerminalIn/OutFunction 1 22, 63 80 SEG1 SEG40OutSegment signal output 23VSSGND (0 V) source 24, 25OSC1,OSC2In/Out Terminals for the built-in clock pulse generator. The external resistor connected determines the oscillation frequency. 26 30V1V5In LCD drive voltage input. Those voltages are used for generating the stepped pulse of the LCD drive signals. 31, 32LP,XCLSNot used 33VDDInDVDD (+5 V) source 34, 35FR,DONot used 36RSIn Data/command determination terminal. High: