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Clavia DMI 

Service manual Nord Electro rev. 1.2 

Page 13 

 

Power board: 

 

Part no.  Item 

69074  Power board N3/NE/N2X 
20910  Capacitor 4700pF X2 
20950  10uF/63V 2m Elektrolyt 
21020  3300uF/25V 85gr Ellyt  axiell 
20990  1000uF/40V 85gr Ellyt axiell 
50061  Plastic strip black 200mm 
20930  100nF/63V/10% 2m Polyester 
20730  Diod 1N5404 3A 
22840  Fuse house nord/dd4/mod 
40076  Heatsink 
23120  Drossel RN112-0,8/02 
22620  Socket AC N3/NE 
22480  Connector 10pol 
22000  Powerswitch On/off 
22020  Button grey power on/off 
22630  AC-Switch 
22780  Trafo N2X/N3/NE Eur/Usa 
40017  Screw, keyboardNL2/transformer 
21650  Regulator -3,3 BT 
22960  Insulating insert TO-220 
40042  Screw, regulator powerboard 
40056  Nut M3 
21660  Regulator -5Low 
21680  Reg12V 
21700  Regulator -12V 
21690  Regulator -5V 
40176  Plastic isolator 
40180  Spacer 2mm Nylon 

 

 

Main board: 
 

Part no.  Item 

69070  Main board Electro 
20980  100uF/16V 6,3x6,0 Ellyt SMD 
20940  1uF/35V 4,0x5,5 Ellyt SMD 
20960  10uF/35V 5,0x6,0 Ellyt SMD 
20970  47uF/35V 6,3x6,0 Ellyt SMD 
20700  Diod Bav70 Sot23 
25305  Diod S1G SMA 
23110  EMI-Filter 2,2nF,+50/-20% 100V 
23100  EMI-Filter 470pF,+50/-20% 100V 
21970  Transistor BC847B Sot23  NPN 
21960  Transistor BCX54 Sot89 NPN 
21950  Transistor BCX53  Sot89  PNP 
21980  Transistor BC857B Sot23  PNP 
21400  Flash NE/G2 
21940  74HC374 TSSOP 
21360  DSP N3/NE/N2X 
21320  Host N3/NE/N2X 
21410  SRAM 1Mb N3/NE/N2X 
21910  74LV138D 
21400  Flash NE/G2 
23700  BootPROM NE, programmed 
21300  EEprom N2/dd4/El/NMG2 
21900  74LV08 So14 
21600  Dac N/NM/NE/dd4 
23430  Dac N2X/NMG2/NS 
21810  74HC32 So14 
21520  Op amp LM833M 
21420  USB circuit, NE 
21570  PC 400TSo 
21480  LF353D So 8 
21500  Resetcircuit N3/NE 
21800  74HC14 So14 
25604  74LCX14 TSSOP 
23080  Crystal 32,768 KHz SMD 
23060  crystal 6 Mhz SMD 
25351  Crystal oscillator 16,6666 MHz 
22600  Connector 1/4" Stereo 
22590  Connector 1/4" Mono 
22640  Connector din 5pol Midi 
22680  Connector 20 pole, micromatch 
22670  Connector 16 pole, micromatch 
22520  Connector 26 pole 
22480  Connector 10pol 
22690  USB connector Type B 

 
 

 

Summary of Contents for Nord Electro 2

Page 1: ...SERVICE MANUAL...

Page 2: ...lectro rev 1 2 Page 1 Table of contents Overview 3 Test program 4 Running the test program 4 Error Codes 7 Hardware 8 Hardware structure 8 Opening the synth 9 Hardware configuration 10 Hardware versio...

Page 3: ...or distributed to other sources such as end users or retailers that do not repair Clavia products IIn this manual the Nord Electro and Electro 2 will be referred to as Nord Electro hImportant safety...

Page 4: ...yboard version 73 note keyboard version Internal memory The internal sound memory of Nord Electro consists of 6 banks A F holding 8 programs each for a total of 48 programs Fuse ratings Voltage 115 V...

Page 5: ...rors in the hardware Test results are shown on the Electro s display If a test is successful the display reads rd If errors are detected an error code is shown in the display The error codes are liste...

Page 6: ...o the next stage Hb Keyboard Test Press one key at a time to check its function If a note on message from that key is detected the display counts up one step When all keys are pressed the test jumps f...

Page 7: ...requency of the sine FL FLASH memory Test I I I I WARNING The Flash test does not preserve data This means that if you perform the Flash test described in this section data is lost and must be updated...

Page 8: ...issing file Hold instr select at power up to init piano without loading samples USB download error codes F 1 Initial USB transfer checksum error F 2 Flash Error Create file error F 3 Flash Error Write...

Page 9: ...stored in the boot BootPROM U17 23700 OS and sampled sounds all sounds except organ are stored in four Flash circuits U1 U4 or U13 U16 21400 4M 16 bits each Audio D A conversion is done by U20 21600 m...

Page 10: ...et Finally remove the 10 pole ribbon cable NE 61 73 22390 NERack 22430 and lift out the PSU Removing the Main Board Loosen the four screws 40262 holding the main board to the chassis Loosen the nuts a...

Page 11: ...uttons affect other parameters Zero ohm resistor in pos R50 R51 Electro 61 No No Electro 73 Yes No Electro Rack No Yes The picture to the right shows how a panel board for an Electro 73 should be conf...

Page 12: ...the latest Software packages Current OS version is shown in the Electros display when you power on the unit I I I I Important Update Note The samples used for OS version 1 x and 2 x are not compatible...

Page 13: ...Electro61 40107 Lower lid Electro61 40114 Upper lid Electro73 40115 Lower lid Electro73 40116 Upper lid Electro Rack 40117 Lower lid Electro Rack 40228 Angle bracket support NE 40231 Wood side Electro...

Page 14: ...t SMD 20940 1uF 35V 4 0x5 5 Ellyt SMD 20960 10uF 35V 5 0x6 0 Ellyt SMD 20970 47uF 35V 6 3x6 0 Ellyt SMD 20700 Diod Bav70 Sot23 25305 Diod S1G SMA 23110 EMI Filter 2 2nF 50 20 100V 23100 EMI Filter 470...

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