Korg_DDD-1_Service_Manual电路图.pdf

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1、DYNAMIC DIGITAL DRUMS SERVICE MANUAL CONTENTS 1. TECHNICAL SPECIFICATIONS 2 2. MIDI IMPLEMENTATION 4 3. SYSTEM EXPLANATION 9 4. STRUCTURAL DIAGRAM 12 5. BLOCK DIAGRAM 13 6. CIRCUIT DIAGRAM 15 7. P.C. BOARD 22 8. MAIN ERROR MESSAGES 26 9. MAIN CIRCUIT EXPLANATION 27 10. PARTS LIST 32 KORG Scan by Man

2、ual Manor RadioFans.CN 收音机爱 好者资料库 1. TECHNICAL SPECIFICATIONS 1 MEMORY CAPACITY BUILT IN RAM RAM CARD PATTERN No. NOTE No. SONG No. PART No. PER SONG SONG BAR INSTRUMENT SETTING 2 MEMORY PARAMETER PATTERN DATA 1. PATTERN No. 2. NAME 3. BEAT 4. BAR 5. FLAM TIME 6. SWING VALUE PATTERN SEQUENCE DATA 1.

3、 INSTRUMENT NUMBER 2. LOCATION 3. DYNAMICS 4. TUNE 5. DECAY 6. FLAM ON SONG DATA 1. SONG NUMBER 2. NAME 3. INST SETTING NUMBER 4. INITIAL TEMPO SONG SEQUENCE DATA 1. PATTERN/SONG No. 2. PART NUMBER 3. REPEAT 4. TEMPO CHANGE INSTRUMENT SETTING DATA 1. SETTING NUMBER 2. TOUCH SENSE 3. TOTAL TUNE 4. TO

4、TAL DECAY 5. OUTPUT LEVEL 6. OUTPUT ASSIGN 7. INST ASSIGN A-N 8. ASSIGN MODE A-N SYSTEM SETTING DATA 1. METRONOME 2. METRONOME BEAT 3. AUDIO INPUT TRIG ASSIGN 4. TRIG OUTPUT ASSIGN 5. CLOCK 6. MIDI RECOGNITION 7. MIDI TRANSMISSION 8. SAMPLING SET ; 64 Kbit x a (BATTERY BACKUPED) ; 64 Kbit x 2 (BATTE

5、RY BACKUPED) ;100 ; 4,458 (MAX Note No. IN A BAR; 249) ;10 ; MAX 255 ; MAX 9,999 ;6 ; 00-99 ; 8 CHARACTORS ; 1/4-8/4, 1/8-16/8, 1/16-32/16, 1/32-64/32 ;199 ;09x 10msec ;O9(5O/o88%) ; A-N (14) ;J/24 RESOLUTION ;015 ; -12-+12 (25 steps) ;015 ; ON/OFF ;09 ; 8 CHARACTORS ;05 j 40-250 BPM PTN 00-99/SONG

6、0-9 MAX 255 PARTS REPEAT TIMES 1-99 -99-+99 BPM ;0-5 ;09 ; 0-127 (ABOUT 9.4 CENTS STEP) ;0-15 ;0-15 ; STEREO L3-R3, MULTI OUT 1 -6 ; INST NUMBER ; MONO/POLY/EXCLUSIVE ; ON/OFF ; 1/4-1/32 ;AN ;AN ; INTERNAL/MIDI/TAPE ; AVAILABLE/UNAVAILABLE (WRITE) ; OMNI MODE (ON/OFF) ; MIDI CH (1-16) ; SEQ TUNE VOL

7、UME (72-96) ;SEQ DECAY (9-24) ; NOTE NUMBER (25-71) ; AVAILABLE/UNAVAILABLE (NOTE) ; MIDI CH(A-N; 1-16) ; CAN BE DIVIDED BLOCK 1. BLOCK 2 ; SAMPUNG CLOCK (0-127) ; SAMPLING TRIG (AUTO/MANUAL) Scan by Manual Manor RadioFans.CN 收音机爱 好者资料库 3 EXTERNAL MEMORY RAM CARD MEMORY CAPACITY ACCESS TIME MIDI TAP

8、E ACCESS TIME ACCESS TIME CONTROLLER SLIDER KEY SWITCH ; 128 Kbit SRAM, BATTERY BACK UPED ; SAVE; LESS THAN 3 sec LOAD; LESS THAN, 2 sec VERIFY; LESS THAN 2 sec ; LESS THAN 19 sec ; LESS THAN 82 sec (ABOUT 2,000 BPS) ; VOLUME (SIGNAL OUTPUT) ; DATA (PARAMETER EDIT) ; AUDIO INPUT LEVEL START ; FLAM S

9、TOP/RESET ; TOUCH SENSITIVE INST KEY x 14 (A-N) : REC/ENTER ; MODE SELECTION KEY x 6 (1 -6) : TAPTEMPO ; FUNCTION SELECTION KEY x 8 (f1 f8) ; ROLL ; CURSOR KEY x 2 (4 ) ; TEN KEY x 10(0-9) ; +1/YESKEY ; -1/NOKEY ; POWER SW ; DIP SW (TAPE I/O LEVEL, TRIG OUTPUT POLARITY, MEMORY PROTECT) DISPLAY LCD D

10、ISPLAY LED INDICATOR INPUT/OUTPUT JACK STEREO OUTPUT R/MONO RorL MULTI OUTPUT 1-6 SAMPLING OUTPUT METRONOME OUTPUT TAPE OUTPUT (DATA) TRIG OUTPUT HEADPHONES OUTPUT AUDIO INPUT TAPE INPUT FOOT SW INPUT ; 5x7 DOT MATRIX, 18 CHARACTER x2 LINES LCD DISPLAY WITH BACK ILLUMINATION ; x10 (RUN, REC, MODE x6

11、, PEAK, TRIG) INPEDANCE 1 K0 2KO iooq 1000 2.2KQ/4.7KO 1KQ 510 10KQ START/STOP 10KO TAP TEMPO 10KO 0 -640 nS LEVEL 2,3Vp-p(TOM1) 3,7Vp-p (TOM 1) 4,6Vp-p (TOM 1) 5,7Vp-p AT STRONG BEAT + 5V i;7Vp-p/17mVp-p + 5V GND/GND 8,0Vp-p 0,37Vp-p Vol MAX, PEAK LED ON HIGH (DIP SW ON) LOW (DIP SW OFF) + 5V GND +

12、 5V GND ; LESS THAN -76dBm ; LESS THAN -76dBm ; LESS THAN -73dBm ; LESS THAN -68dBm TAPE SYNC J=24,1 = 320*S, REMAINING NOISE LEVEL OUTR OUTL MULTM-6 METRO ALLOWABLE CLICK NOISE AT POWER ON/OFF OUT L, R I WITHIN 5,5Vp-p MULTI1-6 ; WITHIN 7,0Vp-p POWER SUPPLY AC LOCAL VOLTAGE 50/60 Hz, 5w BUILT INRAM

13、 BACKUPED BATTERY ; LITHIC BATTERY DIMENSION 411 (W) x 263 (D) x 65 (H) mm WEIGHT 3,2Kg Scan by Manual Manor RadioFans.CN 收音机爱 好者资料库 2.MIDI IMPLEMENTATION 1. TRANSMITTED DATA 1. CHANNa MESSAGE * nnnn = 0-15: Channel Numbers set to individual Keys via MIDI Transmit Function. NOTE 1. Note OFF transmit

14、ted immediately after Note transmission. 2. SYSTEM MESSAGES NOTES 1 Transmitted when set to MIDI In Data Transfer Mode. _, . i Transmitted when measure Is selected with Song Select Function set to STOP (However, transmission Is Impossible when olll llll ohhh hhhh exceeds 0111111101111111.) 3. Transm

15、itted when SONG Is selected with Song Select Function set to STOP. 4. Transmitted when Clock is not set to MIDI (not transmitted when set to STOP). Scan by Manual Manor 3. SYSTEM EXCLUSIVE MESSAGES SEQUENCE DATA BYTE DESCRIPTION lilt 0000 0 10 0 0 0 10 0 0 11 0 0 0 0 0001 0010 to o o o o i i i 0 10

16、0 10 0 0 Oddd dddd Oddd dddd I I I I 0 I I I EXCLUSIVE STATUS KORG ID 42H FORMAT ID 30H DDD-1 ID I2H SOD-1 ID 07HJ SEQUENCE DATA 48H DATA (NOTE I ) Data up to 56 bytes *57 bytes for the first block only DATA J EOX NOTE 1. DDD-1 is transmitted when SQD-1 receives DATA DUMP REQUEST during SAVE operati

17、on while set to the MIDI Function in the Data Transfer Mode. NOTE 1. DDD-1 is transmitted when SQD-1 receives DATA DUMP REQUEST during SAVE operation while set to the MIDI Function in the Data Transfer Mode. O DEVICE ID Scan by Manual Manor 2. RECOGNIZED RECEIVE DATA . CHANNEL MESSAGES k nnnn=0 15:

18、Channel Numbers set via the MIDI Receive Function at OMNI MODE ON, all messages received regardless c setting. At OMNI MODE OFF, only set Channel Message is received. However, Channel Mode Messages receiv set Channel Messages regardless of OMNI ON/OFF status. 4OTES 1. Recognized Note OFF Note Number

19、s k k k k k k k = 9 24(SEQ DECAY) k k k kkkk = 7296(SEQ TUNE) * kkk kkkk = 25 71 is ignored. 2. Recognized Note ON Note Numbers kkk kkkk = 9 24(SEQ DECAY) kkk kkk k =25-71 (INST KEY) kkk kkkk =7296(SEQTUNE) 5. When a Program Change Message is received in the INST SETTING mode, Instrument settings ma

20、y be altered. A-Program change Numbers outside of the range are ignored. Program change Numbers outside of the p p p pppp = 0-5 range are ignored. x 2. SYSTEM MESSAGES NOTES 1. Recognized when Data Transfer Mode is set to MIDI. 2. Recognized only when Song Select Function is set to STOP. Song Number

21、s outside the sss ssss=0 9 range are ignored. 3. Recognized when Clock is set to MIDI. Scan by Manual Manor 3. SYSTEM EXCLUSIVE MESSAGES BDATA DUMP REQUEST YOTE , I. DDD-1 is transmitted when SQD-1 receives SEQ DATA during LOAD operation while set to the MIDI Function in the transfer Mode. 2. DDD-1

22、is transmitted when SQD-1 receives SEQ DATA during LOAD operation while set to the MIDI Function in the Data transfer Mode. Scan by Manual Manor Scan by Manual Manor 3.SYSTEM EXPLANATION 1. Basic construction of the SYSTEM Is as follows. For each circuitry, refer to circuit explanation on Page 27. C

23、PU 78C10CW 0C2) GATE ARRAY MB881107 (IC22) 2. ORGANIZATION OF P.C. BOARD KLM-6019 MAIN BOARD KLM-6020 TAPE 1/0 BOARD KLM-6021 PANNEL SW BOARD KLM-6022 PANNEL SLIDE VR BOARD KLM-6023 PANNEL LED BOARD KLM-6007 POWER SUPPLY BOARD PORT A (OUT) ROM AREA 32 Kbyte RAM1 AREA 8 Kbyte RAM 2 AREA 8 Kbyte RAM C

24、ARD AREA 8 Kbyte BATE-ARRAY AREA SAMPLE 8256 AREA NO USE KEY-BOARD SELECT MOUSE OOOOH 7FFFH 8000H 9FFFH AOOOH BFFFH COOOH DFFFH EOOOH E7FFH E800H E803H E804H EFFFH FOOOH F001H FFFFH SOUND SOURCE ADDRESS KJ DAC BLOCK R (LADDER RESISTOR) SOUND MEMORY MAX 512 WORD WAVE ROM 83100040-254(1016) 8310O0-2O-

25、255 (IC18) MEMORY OUTPUT DATA * * * * MULTIPUCAL TYPE OUTPUT CHANNEL MULTIPLEXER (74 HC 4051) RAM CARD BANK SELECT. LPF LPF LPF LPF rrTT ANALOG OUTPUT (MAX 16 CH) Scan by Manual Manor 4. KEY MATRIX PAO PA, PA3 F8 M F7 H F6 W F5 W F4 W F3 W F2 W F1 PA, STOPM SW NC M NC STAfflV VENTE PA, ( NC M NC M N

26、C M NC M NC M NC W NC M NC D7 D6 D5 D4 D3 D2 D1 DO 5. ROM/RAM CARD FORMAT. X-507 RAM CARD FORMAT 10 DATA in a RAM CARD is roughly divided into the KORG ID PART and the DATA PART. KORG ID PART: KORG ID stands for KORGS RAM CARD and whose data is used for DDD-1. And the DATA names which are christened

27、 by manipulation on the panel will be stored. Refer to the next page. DATA PART: DATA of patterns, songs, settings which are recorded in a main frame of DDD-1 are stored in this part. Scan by Manual Manor I VOICE ROM CARD FORMAT address 0010H 0020H 0840H 0050H 0070H man OOAOH 0400H KORG ID CARD RECO

28、GNITION DATA INST DRIVE DATA N.O.0 N.0.1 N.0.2 N.O.3 N.0.4 N.O.S N.O.6 N.O.7 PCM DATA Data in a ROM card is roughly divided into the INDEX PART and the DATA PART. INDEX PART consists of: KORG ID KORGs Rom Card which is used for DDD-1. CARD RECOGNITION DATA The Data to discern the card from the other

29、s. INST DRIVE DATA The Data for making sounds. DATA PART means PCM DATA. 5. SYSTEM RESET The DDD-1 boasts many functions like INST ASSIGN and etc., it is sometimes turned into us for repair ser vices although nothing is wrong with it. As a basic checking method, there is SYSTEM RESET YES Hold down a

30、nd and turn the power switch ON DISPLAY SV KORG DDD-1 STEM RESET !i When you run the SYSTEM RESET, keys on the panel will be automatically set at their original posi tions in accordance with the assigned sounds on the panel. 11 Scan by Manual Manor 4.STRUCTURAL DIAGRAM nun no. 4/1 4/2 4/3 10 11 12 1

31、3 14 IS 16 17 18 PART UPPERCASE ROM CARD COVER LOWERCASE TACT SW. KNOB GRAY TA6T SW. KNOB BLUE GREEN TACT SW. KNOB IVORY TACT SW.KNO8 RED LCD COVER CARDRAILL CARD RAIL R METAL RTTINQ OF PCB SUPPORT P.C. BOARD RAIL L PC. BOARD RAIL R MINI PHONE JACK PLATE HEAT SINK 8HIELDtNQ SHEET AC CORD FPQNQ PLATE

32、 SUPP0RTM6 PLATE OF SAMPLING BOARD BOARD CUSHION 8U0eVRKM0BNO.3 64622700 64077900 62016800 62017000 62016900 62016700 D78700 64079601 64079600 64078100 68003601 64078200 S5010100 62017300 12 Scan by Manual Manor PHONES MONO OUTPUT CHANNEL CHA-C (NH1-2 MASK ROM 1MBYTEx2 (VOICE ROM) Scan by Manual Man

33、or DDD-1 SIGIN O-O DATA I BUSS UPD65010 COMPARATER PREEMPHASIS + COMPRESSOR SAMPLE then it is output from the TRIG OUT jack. c FOOTSW FOOT SW on/off signal is buffered by IC1 (HC 86) then entered into the key sw matrix by Q3 (2 SA1175). ITAPE OUT The resultant of the signals at CPU ports PC4 and PC7

34、 passes through Q1 (2SC2785) and is output from the circuit board KLM-6020 TAPE OUT jack. IAUDI0 IN The signal input from the jack (PH12) passes through the KLM-6023 AUDIO IN potentiometer and then enters the AUDIO IN circuit. IN the AUDIO IN circuit it is first amplified by the first stage IC23 (45

35、58) and then fed to the sampling board. Then it is half wave rectified by the second stage IC23 (4558) and input as a dynamic value to the CPU analogue port AN3. The circuit board KLM-6023 PEAK LED is lit by the comparator circuit formed by IC24 (2901). After the signal passes through the TRIG detec

36、tion circuit formed by IC24 (2901), part of it is input to the key matrix by transistor Q2 (2SA1175), and the re mainder lights the circuit board KLM-6023 TRIG LED. Reset circuit POWER ON or OFF is detected by the reset IC, IC37 (S-8054HN). A reset signal is formed, passes through IC15 (HC14) and in

37、put to the CPU, GATE ARRAY, RAM and sampling board. I RAM card, sampling board, buffer and status Since the RAM card and sampling board are con nected directly by the CPU bus, a buffer is provided for the connection for the sake of safety. IC14, IC8 and IC9 (HC4050) form the address bus buffer, whil

38、e IC25 (HC245) acts as a two-way buffer for the data bus. In addition, the RAM card status signal (CARD STAT) becomes LOW when the card is plugged in and is input to CPU analogue port AN6. The sampl ing board status signal becomes LOW when the board is plugged in and is input to CPU analogue port AN

39、7. Decoder Addresses All to A15 are decoded by IC12 (HC138), and the RAM, RAM card, GATE ARRAY, sampling board and KEY input port (IC4) select signals are formed. 2. Circuit board KUVI-6019, GATE ARRAY section (Circuit Diagram IGATE ARRAY The GATE ARRAY (IC22 MB661107) is connected directly to the C

40、PU bus, and controls the rhythm sound source data in the voice ROM and ROM card under CPU supervision. I Sound source ROMs The sound source ROMs are mask ROMs. Two, each with 1M bit capacity, are used. They are connected to the GATE ARRAY sound source address data bus, and accessed by the GATE ARRAY

41、. In addition, this bus is connected to the circuit board KLM-6008 ROM card, and accesses sound source data. Scan by Manual Manor Decoder IC21 (HC139) decodes the signals from sound source addresses RA17 and RA18, and inputs them to sound source ROM chip enable. IC20 (HC138) decodes the signals from

42、 sound source addresses RA1S to RA18 and forms the ROM card (circuit board KLM-6008) select signal. D/A GATE ARRAY sound volume data (REF 0 to 9) are D/A converted by ladder-type resistor RA25 (IC33- HC4050 causes only the data from REF 4 to 9 to pass through a buffer). IC34 (/*PC624C) multiplies th

43、e D/A converted sound volume data by the sound source data (RD 0 to 7) and D/A convert the result. Multiplexer IC36 (HC4051) takes the signal D/A converted by IC34 (/iPD624C) and output it at the L, R fixed level determined by the GATE ARRAY channel output (CH A to C). In addition, IC35 (HC4051) out

44、puts to MULTI OUT 1 to 6 and the metronome as determined by the channel output (CH A to C). LPF Multiplexer output (L, R/MONO, OUT 1 to 6, metronome) is fed to an LPF which removes the 25.64 KHz sampling clock signal and outputs the result. Noise reduction The signal is double half wave rectified by

45、 IC26 (NJM072D). Then the sound volume values are con verted into DC voltage values, and current output is performed by the pair transistor Q21 (2SA1239). IC25 (NJM13600) operates as an LPF whose fre quency range expands from the low region to the high region depending on the magnitude of the volume

46、 that is input. Headphone amplifier Headphone can be driven by IC27 (NJM4556). Bias circuit After the power is turned ON, this circuit prevents a clicking sound when the No.1 sound of the GATE AR RAY is emitted, and applies a bias voltage to the multiplexer output. . PANEL SECTION LCD The LCD module

47、 displays characters under control of CPU ports PA 0 to 7 and PB 4 to 7. Analogue demultiplexer This consists of IC3 and IC8 (4051), and sends the dynamic value of instruction KEY A to N determined by port A to the CPU. IC1 (NJM 072) is used to hold a fixed time from the time the dynamic value is input until the CPU comes to reading. MODE, REC, RUN LED Port A data are latched by IC2 (HC374) and light the corresponding LED. KEY matrix Key scanning is done for ports PA 0 to 6, and data for the key that is pressed are read into the CPU. In addi tion, Q1 to Q14 come ON when the corresponding