Korg Poly-800II Service Manual Download | Manualshive

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Summary of Contents for Poly-800II

Page 1: ...LY 800E SERVICE MANUAL CONTENTS 1 TECHNICAL SPECIFICATIONS 1 2 MIDI IMPLEMENTATION 2 3 STRUCTURAL DIAGRAM 13 4 BLOCK DIAGRAM 16 5 CIRCUIT DIAGRAM 17 6 P C BOARD 20 7 CIRCUIT DESCRIPTIONS 23 8 CHECK AND ADJUSTMENT PROCEDURE 26 9 PARTS UST 29 ...

Page 2: ... or tie regarded as 1 step maximum of 1 000 steps SPEED 1 step regarded as T J 25 250 20 MODE ONE TIME REPEAT 14 TAPE INTERFACE DATA TRANSMISSION SPEED approx 2 000 bit sec OUTPUT LEVEL 4 5 mVp p INPUT LEVEL HIGH 3 Vp p LOW 1 Vp p 15 MIDI CHANNEL 16 CH PROGRAM CHANGE DISABLE ENABLE SEQUENCER CLOCK INT EXT SOCKET IN OUT 16 DIMENSIONS 780 W x 286 P x 87 6 H mm 17 WEIGHT 4 4 kg including dry cell bat...

Page 3: ...t resolution VCF Modulation 4bit resolution Program Change P P P P P P p 0 63 NOTE I Pitch Bender Change 7bit resolution v v v v v vv 64 Center LSB is not used nnnn 0 15 The channel number set in parameter 87 But sequencer data is fixed at channel 2 NOTE 1 The relationship between MIDI program numbers Oppppppp and display program numbers is shown here Display number MIDI Program number n 12 i 87 8...

Page 4: ... I word MSB 4bitJ 5376 Byte LSB 4b tj MSB 4biti EOX N0TE2 DATA DUMP is sent only when a DATA DUMP request is received NOTE 2688 2 The 2 RAM data 1 word n least significant 8 bits are check sum data DATA ERROR I I I I 0 I 0 0 0 0 I 0 0 0 0 0 0 0 I 0 I I I I 0 0 0 0 0 0 I 0 0 0 0 I I I 0 0 0 0 0 0 0 I I I Exclusive status KORG ID Format ID POLY 800H ID Data Error EOX 42 H 2IH OCH 20 H Sent only when...

Page 5: ... will be ignored MSB will be recognized v v v v v v v 64Icenter nnnn 0 15 Channel number set in parameter 87 When OMNI mode is ON all messages are received regardless of channel number setting When OMNI mode is OFF the synthesizer responds only to messages received on the currently selected channel number The power on default is OMNI ON NOTE 1 Note number Okkk kkkk 36 84 Received data beyond this ...

Page 6: ...itJ 5376 Byte LSB 4bit MSB 4bitJ EOX Check Sum data NOTE 4 NOTE 4 The 2 RAM data 1 word n least significant 8 bits are check sum data n l DATA DUMP REQUEST I I I I 0 I 0 0 0 0 I 0 0 0 0 0 0 0 0 I I I I I 0 0 0 0 0 0 I 0 0 0 0 I I I 0 0 0 0 0 0 0 I I I Exclusive status KORG ID Format ID POLY 800H ID Data Dump Request EOX 42 H 2IH OCH I0H After receiving a DATA DUMP REQUEST there is a delay of about...

Page 7: ...ent when a check sum error occurs during reception of DATA DUMP data Receiving DATA DUMP The program data loaded to the POLY 800II The contents of this data replace the sound data stored in the 64 programs in memory sequencer data settings of parameters 85 86 87 and 88 and chord memory data DATA DUMP REQUEST A command to transmit program data When this request is received the POLY 800II begins DAT...

Page 8: ... UNDEFINED CHORD MEMORY SEO MODE SEO CKL PROG CHANGE DIS ENA UNDEFINED PROG DATA 0 0 0 H 0 0 1 H 3 E a H 3E9H 3F0H 3FIH 3F8H 3 F 9 H 3 F A H 3 F B H 3FCH 3FFH 400H A7FH 1 1000 8 8 1 1 1 4 1664 I Actually when this data is transmitted on MIDI each byte is split at its least significant four bits and sent starting from relative address 000H UNDEFINED data does not affect internal operation it is onl...

Page 9: ...E TIME 1 2 REPEAT 0 1 INT 1 2 EXT 0 0 DISABLE 1 J ENABLE 87 85 86 88 I Sequencer data has the following structure f J i 00 H 01 H 02 H 1 k t ki ki ki k ki ki 0 ki ki ki ki kj kj ki 0 kj k kj k k k k 1 k3 kj k3 k3 k3 k3 k3 End Rest Tie If most significant bit is 0 Other notes exist at same time If most significant bit is 1 Block end at that point in time Oknknknknknknkn Same as MIDI note number 24H...

Page 10: ...Bit map for each program Exceeds byte unit UNDEFINED data can have any value it is only used in the check sum ...

Page 11: ...bO b4 b7 b5 bl bO b6 b2 b6 bO b7 b3 bO b7 b4 b3 bO b7 b4 b4 bO bl bO b7 b5 0 1 LOWK0I 2 MID J0 3 HIGHK M INHIBIT 0 1 LOW 01 2 MID IO 3 HIGHK 11 INHIBIT 00 1 LhOI 2 f J0 11 INHIBIT 00 i n_Koi 2 r K i o 11 inhibit 0 0 OFF J I ON 0 0 OFF J I ON 0 0 OFF J I ON 0 0 OFF J I ON 0 0 OFF J I ON 0 0 OFF J I ON 0 0 OFF J I ON 0 0 OFF J I ON 00 11 0 3 0 1 WHOLE x 1 2 DOUBLE 0000 1100 0 12 1101 1111 INHIBIT 00...

Page 12: ...O b7 b4 b5 bl b2 bUb7 b6 b7 b3 b4 bO bl bO b7 b5 b5 b2 b7 b6 b6 bO b3 bO b7 b4 b4 bO b4 bO b3 bO b7 b4 00000 11111 0 31 00000 11111 0 31 00000 11111 0 31 00000 11111 0 31 00000 11111 0 31 00000 11111 0 31 00000 11111 0 31 00000 Mill 0 31 00000 11111 0 31 00000 11111 0 31 00000 11111 0 31 00000 11111 0 31 00000 11111 0 31 00000 11111 0 31 00000 11111 0 31 00000 11111 0 31 0000 1111 0 15 00 0 OFF OI...

Page 13: ...sage I 0 I DO LS8 D1 D2 D3 D4 D5 D6 D7 MSB 1 1 I DO I II D1 D2 D3 D4 D5 D6 D7 MSB 1 1 Start bit ID data 1st Byte ID data 1st byte 42H KORG s MIDI ID code ID data 2nd byte OH Poly 800ll s MIDI ID code mark Start bit ID data 2nd Byte mark d Composition of 1 message in Data Section and Check Sum Section 0 I DO lsb D1 D2 D3 D4 05 D6 D7 MSB 1 1 Start bit Data bit mark Data moves in order from LSB with ...

Page 14: ...OY STICK PLATE SLIDE VR KNOB B NO 2 BLK ROTARY VR KNOB NO 2 BLK JOY STICK ASSEMBLY PUSH SW KNOB A 3 BLK PUSH SW KNOB A 4 DARK GRY PUSH SW KNOB B 5 BLK PUSH SW KNOB B 6 DARK GRY PUSH SW KNOB B 3 RED PARAMETER INDEX SHEET LED DISPLAY COVER PUSH SW CUSHION A PUSH SW CUSHION B ...

Page 15: ...O o w B O ...

Page 16: ... CASE RUBBER FEET BATTERY COVER BATTERY HOLDER BATTERY TERMINAL BATTERY TERMINAL STRAP PEG SHIELDING SHEET BATTERY CUSHION 16 x 30 x 4 RIBBON SHIELDING SHEET SPIRAL CLIP CS 8 PART CODE 64621000 50008700 64621100 64621200 64058100 64058101 64402200 58018004 50008800 54008100 63002500 54008600 ...

Page 17: ...O TO TAPE O FROM TAPE DIGITAL DELAY EQ LINE OUT LOUT MONO OR OUT R PHONE OUT ...

Page 18: ...IC 16 D1 D10 1SS133 IC 1 NJM 4560 S IC 14 15 17 19 M5223L IC NOT SPECIFIED NJM4558S I_CV4 DSS31O 55D223S 06 ...

Page 19: ... E No specify diode is 1SS53 and D17 is 1S1555 No specity transistors Atype2SA1175 Ctype2SC2785 DB2 9 LT 8001 used 6 8K has not silk between R125 and R126 1SS53 can be replaced 1S2473 40H174 can be replaced HD14174 and VPD4174 Is NJM 2069 AD 85 11 15 MN A replaced 10V type of dielectric strength 86 2 14 changed some part to conseder EMI 86 2 26 n ...

Page 20: ...unin nnn 1T11T1I xlimiu 18U o 8 j s log o x F SW12 UP SW13 DOWN SW14 PROWARAM SW16 SW17 START STOP SW18 STEP 1SS53x18 EVQ QJBX18 1S2473 7 2B POWER SW KLM 597 8 3B To KLM 599 BEND ...

Page 21: ...KLM 1032 6 P C BOARD J ...

Page 22: ...4P L S O1Q ...

Page 23: ...KLM 599 601 ...

Page 24: ...e following chart POLY 80QH POLY 800 COMPARISON CHART ITEM POLY 800H POLY 800 EG DEG1 3 Decay Slope Release Exponential Linear Time However when Sustain level is greater than Break point level slope envelope rises then slope of envelope is linear Time Ratio of change is always equal VCF Multiple Trigger Trigger takes effect when KEY ON Trigger takes effect from any point when Key ON EFFECT Built i...

Page 25: ...ng is read by the CPU via matrix circuit and performed by IC3 MSM5232 itself The MSM5232 output goes through waveform synthesis circuit which includes IC s 4 5 and 6 and is input to filter chip IC1 NJM2069 Likewise EG DEG1 DEG2 DEG3 LEVEL1 LEVEL2 CUTOFF and other switching is read by the CPU via the same matrix The CPU processes the data and controls IC2069 via a D A converter and time sharing CV ...

Page 26: ... 55 56 57 58 59 60 61 62 63 64 Pin Name A0 WR0 IO3 IO2 CAS OE0 101 IO4 OE1 OE2 OE3 DO D1 D2 D3 D4 D5 D6 D7 CLK VDD I O O o I O I O o o I O I O 0 o o 5 PIN CONFIGURATION 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 OUTPUT TERMINAL TIMING CHART JTJTJTJlJlJXri Inpu...

Page 27: ...y 2 13 14 15 16 1111 17 31 17 31 18 1 18 1 31 99 31 99 32 0 32 0 33 0 33 0 35 1 35 1 37 0 37 0 41 0 41 0 42 0 42 0 43 7 43 7 44 0 44 0 45 0 45 0 46 0 46 0 61 0 61 0 71 50 71 0 72 15 72 0 73 0 73 0 74 0 74 0 75 15 75 15 76 0 76 0 77 0 77 0 81 0 81 0 82 0 82 0 83 0 83 0 84 0 84 0 85 2 85 2 86 1 86 1 81 1 81 1 88 0 88 0 1 Power supply circuit KLM 1032 Be sure that the specified AC adapter is used 9V ...

Page 28: ...nts when tune VR is at b max posi tion If necessary Adjust VR3 15 Cutoff check and adjustment KLM 10327 1 Select program no 13 2 Play C3 and set to HOLD 3 Connect on oscilloscope to CN6A pin 3 and observe waveform as in figure 1 4 Adjust VR2 to obtain maximum waveform amplitude 6 Resonance check and adjustment KUVM032 1 Select program no 14 2 Play C3 and set to HOLD 3 Confirm to oscillation and co...

Page 29: ...st VR 1 if necessary AC50m m O isec 600msec Fig 2 3 ANALOG COMPANDER NE572 Verification Adjustment 1 Select program No 16 2 Connect on oscilloscope AC 50mV div 0 1 sec div to TP1 Connect ground to TP2 3 Play C3 key and check on the oscilloscope that visible waveforms are formed which are unifprm in size and shape Note Although this can be abjusted via VR2 because it is fixed at a fully couterclock...

Page 30: ...M 779 KLM 1032 KLM 779 KLM 1032 KLM 779 KLM 1032 KLM 779 KLM 1032 KLM 779 KLM 1032 KLM 779 KLM 1032 2 1 2 1 1 3 8 2 1 1 8 1 1 1 1 8 1 4 2 1 1 1 2 2 4 3 2 3 2 1 1 3 1 1 7 6 1 1 2 3 1 1 PARTS CODE 10416447 10416456 10416468 10416475 10416482 10416491 10416510 10416511 10416512 10416513 10416515 10416516 10416518 10416520 10416522 10416524 10416527 10416533 10416539 10416547 10416556 10416562 1041656...

Page 31: ...779 KLM 779 KLM 1032 KLM 779 KLM 1032 KLM 779 KLM 1032 KLM 779 Q TY 1 1 2 1 1 1 1 1 1 1 1 5 1 2 1 1 2 1 1 2 i 2 1 5 1 1 2 2 1 1 2 4 1 1 4 1 16 1 PARTS CODE 20402610 PARTS NAME SPECIFICATIONS 50V 0 1 UF P C BOARD KLM 779 IDENTIFICATION NO FUNCTION CERAMIC CAPACITORS 21352471 21356101 21452220 21452560 21453100 21453180 21453220 21453330 21453470 21453680 21453820 21455470 21456100 50V 47PF 25V 0 1 ...

Page 32: ...094 32001095 32001101 32001102 32003011 32003021 32003026 32003030 32003041 32003043 32003047 32003058 32003063 32003070 32003071 32004016 32004017 32004039 32004063 32004095 32004105 32006009 32006010 32006011 32007003 32009005 32009007 32009015 32009028 32009029 32009036 32009044 32011024 32011025 32011065 32013001 32021011 32021022 32025003 PARTS NAME SPECIFICATIONS UPC319C 74HC139C 74HC174C 74...

Page 33: ...0 40502800 40503000 40503100 40503200 40503300 KAC 302 UNI 117V KAC 303 JAM CSA KAO305 240AU KAC 306 240GE KAC 307 240AF KAC 308 220GE 117 US 117 2P JAM 240 AU 240 GE 240 RME 240 AF 220 GE 220 SE 1 1 1 1 1 1 1 1 1 PARTS CODE 40503300 PARTS NAME SPECIFICATIONS KAC 308 220GE P C BOARD INDENTIFICATION NO FUNCTION DEMKO SEMKO MEMKO GAF FIMKO VDE Q TY 1 1 1 1 1 1 KEYBOARD 42003100 ESK 7116 1 POWER JACK...

Page 34: ...AND 54007200 PLT 1M 3 RIBBON 54008100 1 SPIRAL CLIP 54008600 CS 8 2 SHIELDING SHEET 58018004 1 CAUTION LABEL 58019400 100V 1 SHIELDING SHEET 58020600 NO 2 1 PARTS CODE PARTS NAME SPECIFICATIONS P C BOARD INDENTIFICATION NO FUNCTION Q TY FCC LABEL 58021000 117 US 1 FTZ LABEL 58021700 VDE 1 SHIELDING SHEET 58023300 1 CONNECTION CORD 60201302 6 3PHYPLUG2 5 1 SLIDE VR KNOB 62015600 B NO 2 BLK 3 ROTARY...

Page 35: ...1 BATTERY HOLDER 64621200 1 LUG 67201200 3N 3 6 SCREWS 70560508 74530308 74560408 74560412 FEBBZMC5X8 PLAXBZMC3x8 PLAXBBZMC4X8 PLAXBBZMC4X12 4 45 3 9 WASHERS 78430300 78430300 78430300 TWU ZMC 3 TWU ZMC 3 TWU ZMC 3 100V 117 US JAM 117 2P 220 GE 220 SE 240 AF 240 AU DEMKO SEMKO NEMKO 3 3 3 3 3 3 3 3 3 3 3 PARTS CORD 78690300 78690500 PARTS NAME SPECIFICATIONS PSW3 PSW5 P C BOARD INDENTIFICATION NO ...

Page 36: ... KORG INC 15 12 Shimotakaido 1 chome Suginami ku Tokyo Japan KORG INC 1986 6106 DTH Printed in Japan ...

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