Korg ddd-1, Service Manual

Page 1: ...NS 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 Manual Manor http www markgllinsky com ManualManor html ...

Page 2: ...IGN 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 BATTERY 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 1 99 0 9x 10msec O 9 5O o 88 A N 14 J 24 RESOLUTION 0 15 12 12 25 steps 0 15 ON OFF 0 9 8 CHARACTORS 0 5 j 40 250 BPM PTN 00 99 SONG 0 9 MA...

Page 3: ...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 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 0...

Page 4: ...ansmitted 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 Transmitted 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 http www markgl...

Page 5: ...E 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 operation 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 Ma...

Page 6: ... Recognized Note ON Note Numbers kkk kkkk 9 24 SEQ DECAY kkk kkk k 25 71 INST KEY kkk kkkk 72 96 SEQTUNE 5 When a Program Change Message is received in the INST SETTING mode Instrument settings may 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...

Page 7: ... receives SEQ DATA during LOAD operation while set to the MIDI Function in the transfer Mode 2 DDD 1 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 http www markgllinsky com ManualManor html ...

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Page 9: ...M AREA 32 Kbyte RAM1 AREA 8 Kbyte RAM 2 AREA 8 Kbyte RAM CARD 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 255 IC18 MEMORY OUTPUT DATA MULTIPUCAL TYPE O...

Page 10: ...ARD is roughly divided into the KORG ID PART and the DATA PART KORG ID PART KORG ID stands for KORG S RAM CARD and whose data is used for DDD 1 And the DATA names which are christened 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 http www markgllin...

Page 11: ...e others 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 and and turn the power switch ON DISPLAY SV KORG DDD 1 STEM RESET i When you run the SYSTEM RESET keys...

Page 12: ...RAILL 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 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 http www markgllinsky com ManualManor html...

Page 13: ...PHONES MONO OUTPUT CHANNEL CHA C NH1 2 MASK ROM 1MBYTEx2 VOICE ROM Scan by Manual Manor http www markgllinsky com ManualManor html ...

Page 14: ...C55 82C55 CONTROL DSB 1 CONTROLLER GATI ARRAY CON ROL SIGNALS SIG OUT O O START HOLD DELAY TIRE I I SAMPLING I CLOCK I I I DEEMPHASIS EXPANDER SAMPLE HOLD CIRCUIT V D A CONVERTER NJM2069AD LADDER RESISTORS DATA IN DELAY GATE ARRAY SH CLOCK DATA OUT D RAM MPD4265 x 8 Scan by Manual Manor http www markgllinsky com ManualManor html ...

Page 15: ...LM 6020 CN1A 1 DIP 3 2 TAPE OUT 3 DIP 4 4 5V 5 GA 6 5A 7 LCD CONT 8 LPF 3 METRO 9 OP AMP METRO 10 PC5 TAPEIN 11 IRT1 TAPEIN GA D1 4 1SS133 Scan by Manual Manor http www markgllinsky com ManualManor html ...

Page 16: ...o INPUT 0 047 ykr I I GND 2SC2785 5V 7A 5 12 1 12 2 NOTE1 in Tout gndTout GND IN Scan by Manual Manor http www markgllinsky com ManualManor html ...

Page 17: ...1 CN14 4A 28 GET 29 SB 13 A12 8 A7 7 A6 6 A5 5 A4 4 A3 3 A2 2 A1 1 AO 14 DO 1501 16 D2 4A 17 D3 18 D4 19 D5 20 D6 21 D7 11 A10 18ID5 19 12 A11 10 A9 9 A8 27 WE RAM 2LM As 4A 33 CARDSTAT 32 SAMPSTAT 30 SEL SAMP m 34 Reset 23 WR SAMPLING 22 RD Scan by Manual Manor http www markgllinsky com ManualManor html ...

Page 18: ...KLM 6010 DSB 1 TO KLM 6OO8 CN2O I6 SIG 1N E 3 5 5V 7 3V CM2O 28BATT OICE 033Y5V1E I04Z OR DS5Y5V1H I04Z5I MR 4265C Scan by Manual Manor http www markgllinsky com ManualManor html ...

Page 19: ... S 1 I _ I iS mi i m i m i s I i i O i i CD CM 01 Q it K2 tQ J ft I _ W K l W J kO tf IOi I CT JD q p iti 1 o 0 ift 6 if if id ld 5 Vj o m P r IQ P P ro rfi w 0 s L 0 OoclrbJ 19 Scan by Manual Manor http www markgllinsky com ManualManor html ...

Page 20: ...ON BATT Wff 5B34 SV 33ONO 32 GNO 98 31 Y7 ROMS 90 Y6 ROM 7 i 29YS R0M6 28 Y4 ROMS I 4Y3 R0M4 3 Y2 R0M3 2YI ROM2 I YO ROM I O O22CE IC28 RAIIRNSJ9A IOKkS IO3K Scan by Manual Manor http www markgllinsky com ManualManor html ...

Page 21: ...ICS SENSOR 38 29 PAO 28 PA I 27 PA 2 26 PAS 17 PA4 16 PAS IS PA6 4 PA7 SO PC2 13 INT 25 LED 1 CNT 2 RS 3 E 4 RW FOOTS S 3 g tt O Dfi A DATA BUS o ADRS BUS SELOA EOOOH 48 2107 2006 1908 18 04 17 03 16 02 IS 01 14 00 26b 27 IE IRAM 33 CARD 8TAT 46 30 i 32 8AMP STAT fc 7 7 24 NC 25 NC Scan by Manual Manor http www markgllinsky com ManualManor html ...

Page 22: ... 1 fui 250V 500mA Scan by Manual Manor http www markgllinsky com ManualManor html ...

Page 23: ... 1 9SQ H09WD1 Scan by Manual Manor http www markgllinsky com ManualManor html ...

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Page 25: ...KLM 6021 22 23 25 Scan by Manual Manor http www markgllinsky com ManualManor html ...

Page 26: ...n Memory becomes FULL during Step Recording See pg 58 CREflTEl SONG 1 PflRTOll Error position set for REPEAT is incorrect See pg 76 RflM CfiRD SflUE Error End SAVE not performed correctly with RAM Card See pg 113 TOPE LORD Error End LOAD not performed correctly with Cassette Tape See pg 125 ROM CfiRD CECK Card15 Error An inappropriate ROM Card is set in unit See pg 130 BflR MEMORV FULL P01 81 SS00...

Page 27: ...ling 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 detection 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 b...

Page 28: ...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 scanni...

Page 29: ...y This frequency is called the sampling clock 4 A D CONVERTER The circuitry which performs A D conversion of a signal that has been sampled and held is incor porated into the interior of the gate array but the high speed converter IC11 and the sequential com parison data output D A circuit are attached to the outside This converter performs sequential com parison A D conversion 5 GATE ARRAY Gate a...

Page 30: ...ng which makes 43690 words 12 bits When the sampling frequency is taken to be 23 1 kHz the maximum delay time of 1891 msec is obtained Of the 2 blocks BLOCK 1 uses IC13 as the LSB and also has IC16 IC21 and IC23 in that order while BLOCK 2 uses IC8 is the LSB and has IC14 IC18 and IC22 in that order 13 BLOCK CHANGE GATE CIRCUIT As was discussed in section 12 the memory is divid ed into 2 blocks Th...

Page 31: ... 82C55 PORT settings 31 Scan by Manual Manor http www markgllinsky com ManualManor html ...

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Page 33: ...LI Scan by Manual Manor http www markgllinsky com ManualManor html ...

Page 34: ...ILLATOR 33502500 33502700 PRT 12 0RM PRT 8 0RM0 KLM 6019 SEMI FIXED VRs 35005310 RH0652C 10K I KLM 6019 SLIDE VRs 36507000 36507100 36507200 RS20111A6 10KB T fTA RS30111A610KB RS30112A610KBx2 KLM 6021 POWER SW 37508000 SDDJI DIPSW 37508700 KSPA04 KLM 6019 I PUSH SW 37508800 SKCLKC I KLM 6021 TACTSW 37508900 SKHHBV POWER TRANSFORMER 40010200 40010300 TA 600 TB 600 QTY 2 1 1 1 _L_L _L_L L_L _L_ao_ J...

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Page 38: ...DSB 1 PARTS UST Scan by Manual Manor http www markgllinsky com ManualManor html ...

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Page 40: ...KORG INC k Tk 15 12 Shimolakaido 1 chome Suginaml ku Tokyo Japan KORG INC 1987 6201 0TH Printed In Scan by Manual Manor http www markgllinsky com ManualManor html ...