Clavia Nord Electro 2 User manual

Rev. 1.0
2005-06-10
Page 1/5
Nord Electro 2 Service Manual
Revision history
Rev. 1.0
First release.
Overview
There are three different Nord Electro 2 models:
- 61 note keyboard version
- 73 note keyboard version
- rack version
Uploading OS and sounds
The o erating system and sam led sounds are stored in FLASH circuits on the main board. For
information on how to u date the OS and u loading sounds, visit www.clavia.se. Click on Products/Nord
Electro 2 and then choose either ”free software” or ”free sounds”.
Returning to factory settings
It is not ossible to return to factory settings without connecting the Nord Electro to a com uter. Once
connected, you can dum the factory settings and the latest OS. Visit htt ://www.clavia.se for details.
Running the test program
The test rogram is stored in an EPROM located in osition U17. If the version is older than 0.20, there is
no test rogram is available. To find out which EPROM version that is installed, the Nord Electro needs
to be o ened.
In order to trace a hardware error easier, each Nord synthesizer has a test rogram. This rogram is
rimarily used in roduction in order to test all functions. However, any user can access the test rogram
by holding down certain buttons at ower u . The functions rovided by the test rogram allow a quick
and easy search for ossible errors in the hardware. Test results are shown on the Electro’s dis lay. If a test
is successful, the dis lay reads ”rd”. If errors are detected, en error code is shown in the dis lay. The error
codes are listed under the section ”Error codes” at the end of this document.
Rack version
63 note keyboard version
73 note keyboard version

Rev. 1.0
2005-06-10
Page 2/5
WARNING: Im ro er use of the test rogram can result in malfunctioning of the synth. It may only be
used by qualified service ersonnel and is not intended for end users.
In order to execute the different tests on a Nord Electro 2, ress and hold <program 1+3+5> at ower
u . All LEDs and the dis lay should now be lit. After finishing each test successfully, the test rogram
jum s forward to the next ste . The active test is shown in the dis lay. To toggle manually between tests,
ress <shift + up> or <shift + down>.
Checking the LEDs and buttons
Press all buttons to switch off the LEDs. Once switched off, they can not be switched on
again without restarting the test. Switching off all LEDs makes the test jum forward to the
next stage.
Checking the knobs
Turning a knob from fully counter clockwise to fully clockwise should generate a value
between 0 and 7F, res ectively. The value is shown in the dis lay. It should change linearly
with the otentiometer travel. Turning each knob fully counter clockwise to fully clockwise
makes the test jum forward to the next stage.
Checking the keyboard
Press one key at a time to check its function. If a ”note on” message from that key is
detected, the dis lay counts u one ste . When all keys are ressed, the test jum s forward
to the next stage. This test does not re ort velocity res onse.
Checking the pedal inputs
Connect a sustain edal to the sustain edal in ut, a switch edal to the Rotor s eed in ut
and a control or volume edal to the Control edal in ut. Pressing and releasing the sustain
edal should generate values 0 and 7F, shown in the dis lay. This a lies to the Rotor
s eed in ut as well. Rocking the control edal back and forth should generate values
between 0 and 7F, shown in the dis lay. For Yamaha control edals, you have to switch the ti and ring
signals for the edal to work ro erly with the Electro 2. See this document:
htt ://www.clavia.se/nordelectro/fc7_modification.htm.
To make the test jum forward to the next stage, un lug all edals and then reconnect and un lug the
control edal.
Checking the DAC
This test should out ut a clean sine wave on the left (d1) and right (d2) out uts. Toggle the
out ut with <ST RE>. Adjust the volume with the volume knob. If the out ut is
distorted, try adjusting the trim ots found in the lower left corner of the main board
(VR2 for left out ut, VR1 for right) with a non conductive (ceramic) screwdriver.

Rev. 1.0
2005-06-10
Page 3/5
Hardware structure
The hardware is common for all three roducts; one ower su ly unit, one main board and one anel
board.
Power Supply
The Nord Electro is su lied internally with several different voltages. These are +3.3 V, ±5 V and ±12 V.
For more information on where to measure these voltages, see the schematic for the ower su ly. The
fuse should be 300 mA for a 115 V and a 100 V su ly, and 125 mA for a 230 V su ly.
Main board
The main board is equi ed with four DSPs (U16-U19), which are controlled by a host rocessor (U14)
with two RAM circuits (U9-U10, 128k*8 bits each). The code for the host rocessor is stored in an
EPROM (U17). OS and sam led sounds (all sounds exce t organ) are stored in four FLASH circuits (U1-
U4, 4M*16 bits each). Audio D/A conversion is done by U20. A/D conversion of the control edal takes
lace on the anel board (see schematic for details). All in ut and out ut jacks are filtered from radio
signals with an EMI-filter. External jacks are a 26 ole connector for the anel board, a 10 ole connector
for the ower su ly unit and two keyboard connectors.
Panel Board
On the anel board you will find all control functions of the Nord Electro. It is also on the anel board
that the model of the Nord Electro is hardware configured. See section ”How to configure keyboard or
rack version” for details. The anel board is connected to the main board with a 26 ole ribbon cable. It is
through this cable the anel board gets its current su ly.
How to detach the circuit boards
WARNING: Take necessary recautions against ESD before handling the circuit boards.
Opening the synth
Keyboard version:
Loosen the screws as shown in the figure below. Lift the front of the wooden ends to o en the to .
The icture shows which screws that
should be removed on a Nord Electro 73
key version. For the 63 key version, the
two screws close to each other at the to
of the icture does not exist.

Rev. 1.0
2005-06-10
Page 4/5
Rack version
Loosen the two screws on the back side and the two screws on the front side that holds the to to the
chassis. You can now lift off the to .
Re oving the Power Supply Unit
Loosen the five screws holding the PSU to the chassis. Loosen the two screws on the back anel next to
the AC inlet. Finally remove the 10 ole ribbon cable connector and lift out the PSU.
Re oving the Main Board
Loosen the four screws holding the main board to the chassis. Loosen the nuts and remove the washers
around the ¼” jacks on the back anel. Also loosen the four screws holding the MIDI IN and OUT jacks
to the chassis. Remove the 26 ole ribbon cable connector to the anel board, the 10 ole ribbon cable
connector to the PSU and the two ribbon cable connectors to the keyboard. You can now lift out the main
board.
Re oving the Panel Board
Pull off all knobs on the front anel (not the buttons). Remove the ribbon cable connector from the anel
board. Loosen the last two screws holding the to to the chassis. Loosen the nine screws holding the anel
board to the to . You can now lift out the anel board.
How to configure keyboard or rack version
The model of a Nord Electro (61, 73, rack) is decided by two 0 (zero) ohm resistors (R50, R51) found in
the lower left corner of the anel board. In order to reach the resistors, the anel board needs to be
detached. If the anel board is not ro erly configured, you get roblems like:
- High notes trig low notes or notes are trigged randomly.
- Keyboard not working at all.
- Buttons affect other arameters.
The configuration scheme is:
Zero ohm resistor in osition
R50 R51
Electro 61 No No
Electro 73 Yes No
Electro rack No Yes
The icture to the right shows how a anel board
for a Nord Electro 73 key version should be
configured.

Rev. 1.0
2005-06-10
Page 5/5
Updating the software
The software version is briefly shown in the dis lay when you ower on the Nord Electro/Electro 2. For
more information on how to u date the software, visit htt ://www.clavia.se.
Known or common errors
Many of the errors that occur can be related to the im ro er use of the synthesizer. Before it can be
established that a hardware error has occurred, check the manual and the FAQ on www.clavia.se for
information. In some cases an error can be cured by u dating the software. See www.clavia.se for more
information on how to u date the software. If the ossibility of a software error can be excluded, check
the following:
- Is the fuse blown? Many times the roblem can be as sim le as that. Also check the ower rating on the
back anel to make sure that it com lies with your country.
- Does all voltages a ear on the ower su ly unit/main board? For information on where to measure
the different voltages, see the schematic.
- Is there a bad connection? Check all ribbon cables and connectors to see that they are fixed in their
res ective ositions.
- Is there a bad solder joint? A bad solder joint might be difficult to discover on surface mount
com onents, but should be easy to find on hole mount com onents like jacks and connectors.
- Are all com onents and connectors in good condition? Ins ect the card to see if the roblem can be
detected visually.
- In general, some ty es of errors that are hard to trace might be cured by cleaning the board with an
electronic cleaning solvent. Sometimes this can remove conductive debris that shorts out tightly s aced
com onent ins. It might also hel to gently scratch the surface between com onent ins with a scal el
or a similar fine ti ed instrument in order to remove debris.
The above list is by no means com lete, but it can give an indication on where the roblem might be
located.
Input or output jacks not working
The Nord Electro is built with high quality com onents and the circuit boards are well rotected in a steel
chassis to withstand hysical strain. However, in ut and out ut jacks are ex osed to ossible damage, for
exam le when dro ing the synth. If a jack is not working, check the EMI-filter for that jack too see that it
conducts. Use a multimeter or other a ro riate equi ment to measure conductance. Measure at the outer
ends of the EMI-filter. See the schematic for details on where to find the EMI-filter for each jack. Also
check for bad solder joints or cracks in the PCB.
Display shows ’E7’
This error code indicates that there are errors on the software in FLASH. The roblem can be cured by
u dating the software to the latest version. The software is u loaded via MIDI with an u date rogram
that can be downloaded at www.clavia.se. Follow the instructions as dis layed by the rogram. In some
cases, this might not cure the roblem.
So e keys not working or one key trigs several notes
This roblem is most likely to occur if circuits U5, U12 and U29 on the main board are faulty. Ins ect
them visually to see if any of them seem to be in bad condition.

A
A
B
B
C
C
D
D
E
E
4 4
3 3
2 2
1 1
RESET 1
ROTOR
PEDAL
Plottscale:0.665 stående
silent gnd
DSP clk
MIDI
IN
silent gnd
silent gnd
MIDI
OUT
SUSTAIN
PEDAL
silent gnd
CONTROL
PEDAL
INPUT
mountingholes 4.8mm plated
CONNECTOR
POWER
JTAG con
silent gnd
silent gnd
silent gnd
RESET 0
Connector
Connector
Panel
Keyboard
Connector
Keyboard
PCB=2R-J1399-020125
Rev.history: v0.99->v1.00:
delete R65
Y2 changed to MA505/506
1
Nord electro main board vers 1.00
A2
1 1Friday, January 25, 2002
Title
Size Document Number Rev
Date: Sheet of
SA20
SA19
SA18
SA17
SA16
SD17
SA23
SA21
SD23
SD19
SA22
SA22
SD10
SA12
SA11
SD20
WR
SD13
SD9
SA17
SA2
SA19
SA17SA17
SD8
SD14
SA13
SA14
SA9
SD11
SA10
SA3
SA2
SA15
SA12
SA11
SA19
SD17
SD17
SD8
SA6
SD14
SD14
SA4
SD18
SD21
SA5
RD
SD11
SD9
SD22
SD15
SA3
SA7
SD16
SD16
SD12
SA8
SD23
SD19
SD10
SD15
SD12
SA7
SA19
SD13
SA23
SD8
SD18
WR
SD21
SD20
SD11
SD22
SA21
SD15
SA2SA2
SD23
SD19
SD18
SA21
SD13
SD17
SD18
SD20
SD20
RD
SD22
SD16
SD12
SD23
SD10
SD8
SA12
SD8
SD8
SD14
SD18
SD18
SA13SA13
SA14
SD21SD21
SD11
SD11
SD16
SA12
SA11
SD22
SA18
SD8
RD
SD22
SD15
SA2
SD10
SA8
SA20
SA19
SA17
SD21
SD20
SD22 SD23SD23
SD19
SD19
SD10
SA15
SA20
SD14
SA4
SA4
SD18
SD15
SD16
SD19
SA22
SD10
SA15
SA11
WR
RD
RD
SA9
SD9
SD22
SD15
SA2
SA12
SD23
SD19
SD11
SA20
SA20
SA19SA19
SA19
SA18SA18
SA18
SD13
SA17
SA17
SA16
SA16
SD17
SD17
SA23
SA23
SD8
SA6
SD14
SA4
SA4
SD18
SA13
SA13
SA14
SA14
SD21
SA5
RD
SA9
SD11
SD9 SD9
SA10
SA21
SA21
SD15
SA3
SA7
SD16
SD12SD12
SA8
SA22
SA22
SD10
SA15
SA15
SA15
SA12
SA11
SD10
SA3
SA20
SA18
SD13
SD17
SA23
SD8
SA6
SD14
SA4
SD18
WR
WR
SD21
SA5SA5
SD20
SD11
SD9SD9
SD22
SA21SA21
SD15
SA3
SA2
SD16
SD12
SA8
SD23
SD19
SA22
SD10
SD16
SA22
SA13
SA10
SA20
SD13
SA16
SA6
SA6
SD14
SD14
SA4
SA13
SA5
SD20
SD9
SD22
SD15
SA3
SA7
SA7
SD12
SA8
SA15
SA18
SD13
SA17
SA16
SA6
SA6
SA4
SA13 SA14SA14
SA5
SA5
SA5
SA9
SA9SA9
SD11
SA10
SA10SA10
SA3
SA3
SA2
SA7
SA7
SD16
SA8
SA8SA8
SA15
SA12
SA12
SA11
SA11SA11
SD17
SA23
RD
SA16
SA9
SA20
SA17 SA6
SA13
WR
WR
SA14
SA14
SD21
RD
SA10
SA21
SA7 SA8
SA15
SA11
SD21
SA6
SA5
SA18
SA20
SA16
SA23
RD
SA9
SA10SA10
SA3
SA7
SD12
SD19
SA12
SA14
SD13
SD13
SA16
SA16
SD17
SA23
SA23
WR
WR
SD20SD20
SA9
SD9
SA21
SA2
SD12
SD23
SA22
SA22
SA4
SA19
SA18
S2
S0
SA1
S1
S1 S3
S2
S0 S3
S0
S1
S2
S3
SA0
SA0
SA1
D10
A4
A6
D8
D4
D12
D13
A1
D9
A6
D8
D15
D1
D13
D15
D15
D10
CS3
A12
A6
BOOTD7
A2
CS5
A8
D12
A9
CS7
D3
D2
D9
D13
D4
D6
A5
A7
A15
CS1
D9
A16
A11
D14
D14
A10
D0
D14
D8
D11
D4
D13
D11
D15
A17
CS10
A11
A10
D3
A3
D8D8
CS4
A13
D6
D15
A13
D13
A17
CS4
A16
A14
A6
A9
D10
A0
A4
CS1
A11
D8
D11
D14
A2
D9
D9
D12
D13
D10
D10
D11
A5
D12
CS10
CS9
D5
A16
A5
D10
D13
A16
CS2
D10
D0
CS0
A1
D9
A0
A0
D0
A4
A4
CS3
A2
A15
A12
CS8
A14
A7
CS1
A13
A15
R/W
D14
D12
D8
D0
D11
A11
A1
A10
A1
D7
A17
A5
A9
A9
D1
D14
A1
D15
D11
CS7
A14
A2
D12 CS8
A8
D8
A7
D9
D8
D15
D2
D12
D7
BOOT
A2
D14
D5
D9
A12
A13
A3
D13 R/W
A0
D6
A10
A3
A1
CS0
A14
D11
A8
A2
CS0
D5
D11
A7
A0
A4
CS9
D9
D14
A1
A12
A3
CS10
CS5
A2
A0
A8
CS2
D10
D1
D15
R/W
D2
D3
A15
A3
D0
D1
D2
D3
D4
D5
D6
D7
CS6
CS6
D12
+5V
-5V
-5V
-5V
+3.3V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+3.3V
+3.3V
+3.3V +5V
+3.3V
+3.3V
+3.3V
+3.3V
+5V
+3.3V
+3.3V
+3.3V
+5V
+3.3V
+5V
+5V
+3.3V
+5V
+5V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V+3.3V+3.3V
+3.3V
-5V
+5V +3.3V
-12V
-12V
+12V +5V
-12V -12V
+12V
+12V
-12V
-12V
+3.3V
-12V
+3.3V
+3.3V
+12V
+12V
+12V
+12V
+3.3V +3.3V
+5V
+5V
+5V+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
Q9
BC857 SOT23
U28D
74HC32 soic
12
13 11
R53
220
C50
0.1u
C32
0.1u
U18
X24C16
1
2
3
4
5
6
7
8A0
A1
A2
GND
SDA
SCL
test
Vcc
U5
74HC374 TSSOP
3
4
7
8
13
14
17
18
1
11
2
5
6
9
12
15
16
19
D0
D1
D2
D3
D4
D5
D6
D7
OC
CLK
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
D1
BAV70
1 3 2
C33
0.1u
C6 220n
C27
0.1u
C18
0.1u
C46
0.1u
C10 470p
power
grounds
powerpins+3V
U7
DSP56362
12
72
4
73
13
3
14
28
76
27
15
17
77
78
79
82
83
84
85
88
89
92
93
94
97
98
99
33
31
32
30
21
100
101
102
105
106
107
108
109
110
113
114
115
116
117
118
121
122
123
124
125
128
131
132
133
23
43
42
41
40
37
36
35
34
24
46
59
65 103 111 119 129 38
45
5657
95
86
80
74
6
91
126
8
18
25
53
55
70
69
51
50
44
68
67
62
63
71
64
52
60 61
137
136
135
134
16
11
144
143
75
81
87
96
58
66
104 112 120 130 39 47
48
19
54
90
29
141
140
139
142
138
5
127
9
26
1
2
7
10
2049
22
FST
A0
SDO0
A1
FSR
HREQ
SCKT
ACI
A2
ADO
SCKR
HCKR
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
HA0
HA2
HA1
HCS
HDS
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
D23
HACK
H0
H1
H2
H3
H4
H5
H6
H7
HOREQ
PCAP
CLKOUT
+ + + + + +
VCCP
++
+
+
+
+
SDO2
+
+
+
+
+
DE
EXTAL
RAS0
RAS1
RAS2
RAS3
RESET
RD
WR
TA
BR
BG
BB
CAS
nc PINIT
MODA
MODB
MODC
MODD
HCKT
SDI0
MISO
MOSI
g
g
g
g
g
g
g g g g g g
g
g
g
g
TIO0
TCK
TDI
TDO
TMS
TRST
SDO1
g
g
g
SCK
SS
SDI2
SDI1
++
HRW
C7 470p
U9
RAM 128k*8
12
11
10
9
8
7
6
5
27
26
23
25
4
28
3
31
22
24
13
14
15
17
18
19
20
21
1
2
29
30
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
CE1
OE
D0
D1
D2
D3
D4
D5
D6
D7
nc
A16
WE
CE2
U29
74HC374 TSSOP
3
4
7
8
13
14
17
18
1
11
2
5
6
9
12
15
16
19
D0
D1
D2
D3
D4
D5
D6
D7
OC
CLK
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
R37
10k
C44
0.1u
R43 4.7k
R63
10k
P8
CON10pol
1
2
3
4
5
6
7
8
9
10
R31 4.7k
+
-
U23A
LF353 8 pin SO
2
31
4 8
C45
0.1u
U15
28F640J3A 56 Lead TSOP
32
28
27
26
25
24
23
22
20
19
18
17
13
12
11
10
14
54
33
35
38
40
44
46
49
51
4
3
5
8
7
6
55
15
37
42
48
16
34
36
39
41
45
47
50
52
30
1
29
2
43
31
53
21
9
56
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
CE0
OE
D0
D1
D2
D3
D4
D5
D6
D7
A20
A21
A19
A16
A17
A18
WE
Vpen
+3
gnd
gnd
RP#
D8
D9
D10
D11
D12
D13
D14
D15
nc
A22
CE2
CE1
+3
Byte#
STS
gnd
+3
nc
P6
CON26pol
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
C40
0.1u
R38 1k
J8
DIN5pol
1
4
2
5
3
6
7
C57
10u
--
+
U23B
LF353 8 pin SO
6
57
R49 1k
+
-
U26A
LF353 8 pin SO
2
31
4 8
U1
Am 29LV640DU 48 lead TSOP
25
24
23
22
21
20
19
18
8
7
6
5
4
3
2
1
26
28
29
31
33
35
38
40
42
44
10
9
15
48
17
16
11
14
13
37
27
46
12 30
32
34
36
39
41
43
45
47
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
CE
OE
D0
D1
D2
D3
D4
D5
D6
D7
A20
A21
A19
A16
A17
A18
WE
WP
ACC
+3
gnd
gnd
Reset D8
D9
D10
D11
D12
D13
D14
D15
Vi/o
R35 4.7k
--
+
U26B
LF353 8 pin SO
6
57
C56
10u
powerpins+5V
powergrounds
U8
MC68331
15
14
128
13
5
111
12
10
11
4
6
110
109
108
105
104
103
102
100
99
98
97
94
93
92
91
90
20
21
22
23
24
25
26
27
30
31
32
33
35
36
37
38
41
42
121
122
123
124
125
112
113
64
61
57
56
54
114
115
118
119
120
77
76
75
74
73
72
71
78
60
62
55
85
86
87
88
89
82
81
80 130 129
1
7
18
28 39 50 63 84 96 65
116
79
70
69
68
43
44
45
46
47
48
49
52
53
2
8
17
29 34 40 51 59 67 83
95
101
106
117
126
107
127
58
PGP0
PGP1
PCLK
PGP2
PGP7
D0
PGP3
PGP5
PGP4
PAI
PGP6
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19/CS6
A20/CS7
A21/CS8
A22/CS9
A23/CS10
CSBOOT
CS0
XFC
VDDSYN
TSTIME
BKTP
IPIPE
CS1
CS2
CS3
CS4
CS5
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
MODCK
XTAL
EXTAL
IFETCH
DS
RMC
AVEC
DSACK1
DSACK0
AS
SIZ0
SIZ1 PWMA PWMB
+
+
+
+ + + + + + +
+
R/W
BERR
HALT
RESET
MISO
MOSI
SCK
PCS0
PCS1
PCS2
PCS3
TXD
RXD
g
g
g
g g g g g g g
g
g
g
g
+
+
g
FREEZE
R46 4.7k
U21A
74HC32 soic
1
23
R20 10k
R50
10k
R16 10k
C36
0.1u
R39
10k
R3
10k
U21B
74HC32 soic
4
5
6
U12 74HC374 TSSOP
3
4
7
8
13
14
17
18
1
11
2
5
6
9
12
15
16
19
D0
D1
D2
D3
D4
D5
D6
D7
OC
CLK
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
C14
0.1u
R17 10k R9
4.7k
Y1
32.76kHz
C13
0.1u
R5
10k
U21C
74HC32 soic
9
10
8
R26
10k
C39
0.1u
R4110k
U28B
74HC32 soic
4
5
6
C12
0.1u J7
PHONEJACK
2
3
1
Q3
BCX54 SOT89
R51 220
U21D
74HC32 soic 12
13
11
R28
10k
M4
Q6
BCX54 SOT89
R55 220
R77 47
P1
20pol MicroMatch
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Q5
BCX53 SOT89
R75
10
D3
BAV70
13 2
R2910k
C1 22p
C19
0.1u
M3
Q7
BCX53 SOT89
R79
10k
R42
1k
R34
470k
R23
10k
C35
0.1u
M2
R4 330k
R8
4.7k
R45
470k
LD1
J3
2
3
1
R1
10k
R15 220
M1
+
-
U22A
LM833 8 pin SO
2
31
4 8
R58 220
C2
22p
--
+
U22B
LM833 8 pin SO
6
57
J4
PHONEJACKSTEREO
2
4
1
U14
28F640J3A 56 Lead TSOP
32
28
27
26
25
24
23
22
20
19
18
17
13
12
11
10
14
54
33
35
38
40
44
46
49
51
4
3
5
8
7
6
55
15
37
42
48
16
34
36
39
41
45
47
50
52
30
1
29
2
43
31
53
21
9
56
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
CE0
OE
D0
D1
D2
D3
D4
D5
D6
D7
A20
A21
A19
A16
A17
A18
WE
Vpen
+3
gnd
gnd
RP#
D8
D9
D10
D11
D12
D13
D14
D15
nc
A22
CE2
CE1
+3
Byte#
STS
gnd
+3
nc
F5
NFM41R 2200p
R36 1k
J9
DIN5pol
1
4
2
5
3
6
7
R24
470
U17
M27C1001 PLCC32
12
11
10
9
8
7
6
5
27
26
23
25
4
28
29
3
24
22
13
14
15
17
18
19
20
21
1
2
31
32
16
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
CE
OE
D0
D1
D2
D3
D4
D5
D6
D7
Vpp
A16
P
+5
gnd
R6
4.7M
R30 200k
C34
0.1u
J2
2
3
1
R47 1k
R27
8.2k
R48 200k
F1 NFM41R 2200p
U24
PDIUSBD12
1
12
2
3
13 4 6
14
28
7
10
8
11
17
9
21
22
15
18
25
27
26
16
23
19
5
24
20
D0
SUSP
D1
D2
CLKOUTD3 D4
INT
A0
D5
ALE
D6
CS
DMREQ
D7
GLled
XTAL1
RDN
DMACK
D-
Vout3.3
D+
WRN
XTAL2
EOT
gnd
Vcc
RESET
F2NFM41R 2200p
U4
Am 29LV640DU 48 lead TSOP
25
24
23
22
21
20
19
18
8
7
6
5
4
3
2
1
26
28
29
31
33
35
38
40
42
44
10
9
15
48
17
16
11
14
13
37
27
46
12 30
32
34
36
39
41
43
45
47
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
CE
OE
D0
D1
D2
D3
D4
D5
D6
D7
A20
A21
A19
A16
A17
A18
WE
WP
ACC
+3
gnd
gnd
Reset D8
D9
D10
D11
D12
D13
D14
D15
Vi/o
U27
SP705CU uSOIC
2
4
3
1
8
6 7
5
WDO
Vcc
MR
RES
WDI
PFI PFO
gnd
R2
10k
U16
28F640J3A 56 Lead TSOP
32
28
27
26
25
24
23
22
20
19
18
17
13
12
11
10
14
54
33
35
38
40
44
46
49
51
4
3
5
8
7
6
55
15
37
42
48
16
34
36
39
41
45
47
50
52
30
1
29
2
43
31
53
21
9
56
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
CE0
OE
D0
D1
D2
D3
D4
D5
D6
D7
A20
A21
A19
A16
A17
A18
WE
Vpen
+3
gnd
gnd
RP#
D8
D9
D10
D11
D12
D13
D14
D15
nc
A22
CE2
CE1
+3
Byte#
STS
gnd
+3
nc
R11
4.7k
R76
10k
R40
10k
R25
10k
C48
0.1u
R22
10k
C41
0.1u
cw
VR1
50k
J1
PHONEJACKSTEREO
2
4
1
cw
VR2
50k
U11 74LV138 soic
1
2
3
4
5
6
15
14
12
11
10
9
7
13
8 16
A
B
C
EN1
EN2
EN3
Y0
Y1
Y3
Y4
Y5
Y6
Y7
Y2
GND +3.3V
R21 10k
C38
0.1u
TP2
BDMcon
1
2
3
4
5
6
7
8
9
10
VBUS
D+
D-
GND
SHIELD
P9
USB con
1
2
3
4
5
C37
0.1u
P2
16pol MicroMatch
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
R57
220
R54
10k
D2
BAV70
1 3
2
R62 18
R71
220
U19A
74LV08
1
2
3
F7 NFM41R 2200p
F8
NFM41R 2200p
U10
RAM 128k*8
12
11
10
9
8
7
6
5
27
26
23
25
4
28
3
31
22
24
13
14
15
17
18
19
20
21
1
2
29
30
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
CE1
OE
D0
D1
D2
D3
D4
D5
D6
D7
nc
A16
WE
CE2
U30
74HC14 soic
2
4
6
8
10
12 11
9
5
3
1
13
o1
o2
o3
o4
o5
o6 in5
in4
in3
in2
in1
in6
R64
10k
R66 18
C21
0.1u
R70
47
U31
74HC14 soic
2
4
6
8
10
12 11
9
5
3
1
13
7 14
o1
o2
o3
o4
o5
o6 in5
in4
in3
in2
in1
in6
GND +5V
R69
4.7k
R67
1M
U19D
74LV08
12
13 11
C20
0.1u
R56
4.7k
U19B
74LV08 4
5
6
Q1
BC847 SOT23
R59
47
U20 AD1865 soic
10
5
9
6
7
25
27
22
21
4
28
15
8
24
23
20
19
26
17
2
3
1
18
16
11
13
12
14
DL
DR
LL
LR
CLK
nc
nc
-VA
+VA
+VD
AGNDL
AGNDL
AGNDL
MSBR
TRIMR
TRIML
MSBL
IOUTR
IOUTL
RFR
VOUTR
SJR
nc
nc
nc
RFL
VOUTL
SJL
U19C
74LV08
9
10 8
Q2
BC847 SOT23
R68
1M
F14
NFM41R 2200p
R19
10k
R73
10k
R18
10k
R7
4.7k
C52
0.1u
R74
10k
C3 0.1u
C9 10u
power
grounds
powerpins+3V
U6
DSP56362
12
72
4
73
13
3
14
28
76
27
15
17
77
78
79
82
83
84
85
88
89
92
93
94
97
98
99
33
31
32
30
21
100
101
102
105
106
107
108
109
110
113
114
115
116
117
118
121
122
123
124
125
128
131
132
133
23
43
42
41
40
37
36
35
34
24
46
59
65 103 111 119 129 38
45
5657
95
86
80
74
6
91
126
8
18
25
53
55
70
69
51
50
44
68
67
62
63
71
64
52
60 61
137
136
135
134
16
11
144
143
75
81
87
96
58
66
104 112 120 130 39 47
48
19
54
90
29
141
140
139
142
138
5
127
9
26
1
2
7
10
2049
22
FST
A0
SDO0
A1
FSR
HREQ
SCKT
ACI
A2
ADO
SCKR
HCKR
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
HA0
HA2
HA1
HCS
HDS
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
D23
HACK
H0
H1
H2
H3
H4
H5
H6
H7
HOREQ
PCAP
CLKOUT
+ + + + + +
VCCP
++
+
+
+
+
SDO2
+
+
+
+
+
DE
EXTAL
RAS0
RAS1
RAS2
RAS3
RESET
RD
WR
TA
BR
BG
BB
CAS
nc PINIT
MODA
MODB
MODC
MODD
HCKT
SDI0
MISO
MOSI
g
g
g
g
g
g
g g g g g g
g
g
g
g
TIO0
TCK
TDI
TDO
TMS
TRST
SDO1
g
g
g
SCK
SS
SDI2
SDI1
++
HRW
C15 10u
C31
0.1u
C5
220n
C26
10u
R12
4.7k
C22
10n
C55
10u
R13
4.7k
C51
0.1u
C23
10u
TP11
2
3
4
5
6
7
8
9
10
11
12
13
14
R14
4.7k
Y2
6MHz
Q4
BC847 SOT23
C54
100p
C25 10u
U2
Am 29LV640DU 48 lead TSOP
25
24
23
22
21
20
19
18
8
7
6
5
4
3
2
1
26
28
29
31
33
35
38
40
42
44
10
9
15
48
17
16
11
14
13
37
27
46
12 30
32
34
36
39
41
43
45
47
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
CE
OE
D0
D1
D2
D3
D4
D5
D6
D7
A20
A21
A19
A16
A17
A18
WE
WP
ACC
+3
gnd
gnd
Reset D8
D9
D10
D11
D12
D13
D14
D15
Vi/o
C8 470p
R61
22k
Q8 BC847 SOT23
C53
100p
C11 470p
F12
NFM41R 470p
F13 NFM41R 470p
C30
0.1u
C4
100u
C42
0.1u
C43
0.1u
F15
NFM41R 470p
F11 NFM41R 470p
R60
10k
C28
0.1u
F16
NFM41R 2200p
U25 PC400Z
6
4
1
3
5
V+
OUT
IN+
IN-
g
R3310k
F9 NFM41R 470p
C49
0.1u
R72
10k
C24
47u
R78 100k
C29
0.1u
J6
PHONEJACK
2
3
1
F10
NFM41R 470p
U13
28F640J3A 56 Lead TSOP
32
28
27
26
25
24
23
22
20
19
18
17
13
12
11
10
14
54
33
35
38
40
44
46
49
51
4
3
5
8
7
6
55
15
37
42
48
16
34
36
39
41
45
47
50
52
30
1
29
2
43
31
53
21
9
56
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
CE0
OE
D0
D1
D2
D3
D4
D5
D6
D7
A20
A21
A19
A16
A17
A18
WE
Vpen
+3
gnd
gnd
RP#
D8
D9
D10
D11
D12
D13
D14
D15
nc
A22
CE2
CE1
+3
Byte#
STS
gnd
+3
nc
R52
10k
U28A
74HC32 soic
1
23
C47
0.1u
R32 4.7k
F6 NFM41R 2200p
R10
4.7k
C16 22p
U3
Am 29LV640DU 48 lead TSOP
25
24
23
22
21
20
19
18
8
7
6
5
4
3
2
1
26
28
29
31
33
35
38
40
42
44
10
9
15
48
17
16
11
14
13
37
27
46
12 30
32
34
36
39
41
43
45
47
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
CE
OE
D0
D1
D2
D3
D4
D5
D6
D7
A20
A21
A19
A16
A17
A18
WE
WP
ACC
+3
gnd
gnd
Reset D8
D9
D10
D11
D12
D13
D14
D15
Vi/o
R44 4.7k
C17 68p
U28C
74HC32 soic
9
10 8
F17
NFM41R 2200p

A
A
B
B
C
C
D
D
E
E
4 4
3 3
2 2
1 1
Control Pedal
38 single LED
49 knappar
DRAW 1 DRAW 2 DRAW 3 DRAW 4 DRAW 5 DRAW 6 DRAW 7 DRAW 8 DRAW 9
Printerscale=0.92
DRAW8 up
DRAW1 dw
DRAW6 dw
SHIFT
DRAW4 up
DRAW5 up
DRAW7 up
DRAW2 up
DRAW9 up
DRAW7 dw
DRAW9 dw
DRAW6 up
DRAW4 dw
DRAW3 dw
DRAW5 dw
DRAW8 dw
DRAW2 dw
DRAW1 up
DRAW3 up
4.8mm plated mountingholes
Design regler:
-Separat +5V matning från kontakt till AD omv
-Separat jord till alla pottar från AD omv
AD Ref 4.504 V
PCB=2R-J1398-020213
Ej fylld lysdiod är grön.
Fylld lysdiod är röd.
Electro 73
Electro Rack
Rev.history:
v.0.91->v.0.92:Ld125=green, fixed in assy.dwg.
Bot.peelable mask added.
v.0.92->v.1.00:2 resistors added (0R) for
version handling,R50,51. Old R100 and R101
renamed to R48 and R49. LD130,red,added.
P2 deleted.
_
nord electro panel board vers 1.00
A3
1 1Thursday, February 14, 2002
Title
SizeDocument Number Rev
Date: Sheet of
S2
S3
S2
S3
S0
S0
WD8
WD9
WD13
WD11
WD12
WD12
WD15
WD13
WD10
WD10
WD14
WD11
WD14
WD10
WD15
WD15
WD12
WD14
WD14
WD12
S1
WD8
WD8
S1
WD8
WD13
WD11
WD8
WD15
WD13
WD9
WD9
WD11
WD10
WD12
WD13
WD14
WD15
WD11
WD10
WD9
WD9
D12
D10
D8
CS3
CS2
A2
D14
D11
A0
A1
A0
D13
D11
CS2
D15
A1
D13
D11
D9
D13
D15
D9
D9
D14
D8
D12
D14
D8
D15
CS3
D10
D12
D10
A2
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
LD46LD44
S44
LD10
S27
U4
74HC374 TSSOP
3
4
7
8
13
14
17
18
1
11
2
5
6
9
12
15
16
19
D0
D1
D2
D3
D4
D5
D6
D7
OC
CLK
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
LD53
LD30
U10A
74HC32 soic 1
2
3
C12 0.1u
S31
R2 100
LD120
LD54
U10B
74HC32 soic 4
5
6
S35
LD121
LD55
C13 0.1u
LD26
U10C
74HC32 soic 9
10
8
S39
LD122
LD56
S37
S48
R3 100
U10D
74HC32 soic 12
13
11
C14 0.1u
R38
10k
S43
D4 BAV70
13
2
LD123
LD57
G
S7
LD114
D12
BAV70
1 3 2
LD41
LD19
LD58
S3
S47
M4
R4 100
C15 0.1u
S40
LD105
LD5
S4
M6
LD59
S50
R34
10k
Q1
BCX53
LD87
R26
1k
S1
R5 100
M8
LD60
P1
CON26pol
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
Q2
BCX53
LD69
R25
1k
C16 0.1u
LD13
S2
U8
74HC374 TSSOP
3
4
7
8
13
14
17
18
1
11
2
5
6
9
12
15
16
19
D0
D1
D2
D3
D4
D5
D6
D7
OC
CLK
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
LD68
C1 0.1u
LD32
LD78
LD51
D1 BAV70
13
2
LD67
R51 0R
C17 0.1u
S33
R39
10k
S49
R6 100
LD66
LD23
LD8
LD96
G
S17
C18 0.1u
LD65
S36
R27
1k
C19 0.1u
LD29
cw
VR10
10k Lin panelpot
cw VR8
10k Lin panelpot
R7 100
LD64
D10 BAV70
13
2
Q3
BCX53 C20 0.1u
LD125
cw VR9
10k Lin panelpot
U9
MAX1112 CAP 20SSOP
1
2
3
4
11
12
13
18
16
15
14
10
9
17
19
20
5
6
7
8
CH0
CH1
CH2
CH3
RefIn
RefOut
Agnd
CS
SStrb
Dout
Dgnd
SHDN
COM
Din
SCLK
+5V
CH4
CH5
CH6
CH7
LD63
G
S8
LD28
M9
cw
VR11
10k Lin panelpot
LD62
LD130
R8 100
R40
10k
S23
LD77
LD49
S46
S29
LD70
D11 BAV70
13
2
LD76
LD40
LD17
cw
VR6
10k Lin panelpot
S42
R28
1k
S15
M2
LD75
LD3
S32
D16
BAV70
13 2
S38
Q4
BCX53
LD80
C7
0.1u
S16
R15
100
LD71
S34
LD81
C6
0.1u
LD47LD45
S13
LD72
LD11
S30
LD82
LD37
S14
U5
74AC138 soic
1
2
3
4
5
6
15
14
12
11
10
9
7
13
A
B
C
EN1
EN2
EN3
Y0
Y1
Y3
Y4
Y5
Y6
Y7
Y2
LD74
R41
10k
S26
LD61
LD83
D8 BAV70
13
2
LD73
G
S18 S25
S22
LD106
LD84
R29
1k
R48
0R
LD25
D5 BAV70
13
2
LD52
Q5
BCX53
LD85
LD97
S28
U7
MAX1113CEE 16QSOP
1
2
3
4
7
8
9
14
12
11
10
6
5
13
15
16
CH0
CH1
CH2
CH3
RefIn
RefOut
Agnd
CS
SStrb
Dout
Dgnd
SHDN
COM
Din
SCLK
+5V
ab
c
d
e
f
LD128
LEDdisplay
10
9
8
5
4
2
3
7
1 6
A
B
C
D
E
F
G
DP
CA CA
LD88
LD86
G
S11
R46
10k
LD127
LD35
LD20
LD79
S9
LD6
R45
10k
R17
150
LD89
R30
1k
C5
0.1u
S10
C9
0.1u
Q6
BCX53
LD90
R18
150
U1
74HC245 TSSOP
2
3
4
5
6
7
8
9
19
1
18
17
16
15
14
13
12
11
A1
A2
A3
A4
A5
A6
A7
A8
G
DIR
B1
B2
B3
B4
B5
B6
B7
B8
D2 BAV70
13
2
LD14
cw
VR1
10k Lin panelpot
S21
R19
150
LD91
LD39
LD15
cw VR3
10k Lin panelpot
cw
VR2
10k Lin panelpot
R20
150
LD92
LD1
cw
VR4
10k Lin panelpot
S24
M1
R21
150
LD93
LD22
cw VR5
10k Lin panelpot
LD43
M3
LD94
LD113
R22
150
R31
1k
LD9
D15
BAV70
13 2
LD36
Q7
BCX53
M5
LD112
LD95
R23
150
LD124
M7
LD111
R
S51
U2
74HC374 TSSOP
3
4
7
8
13
14
17
18
1
11
2
5
6
9
12
15
16
19
D0
D1
D2
D3
D4
D5
D6
D7
OC
CLK
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
LD27
LD98
LD110
U3 74HC374 TSSOP
3
4
7
8
13
14
17
18
1
11
2
5
6
9
12
15
16
19
D0
D1
D2
D3
D4
D5
D6
D7
OC
CLK
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
R1 100
G
S12
LD115
LD99
LD109
ab
c
d
e
f
LD129
LEDdisplay
10
9
8
5
4
2
3
7
1 6
A
B
C
D
E
F
G
DP
CA CA
+
C4
10u
C11 0.1u
S20
LD116
LD100
R32
1k
LD34
LD18
Q8
BCX53
R10
100
LD117
LD101
LD108
G
S5
LD4
R16
100
R11
100
LD107
LD102
R35
10k
C8
0.1u
R12
100
LD103
LD118
LD12
LD31 R13
100
LD119
LD104 R43 1k
LD50
D14
BAV70
13 2
R44 1k
R33
1k
D7 BAV70
13
2
R14
100
C10
0.1u
LD24
Q9
BCX53
S45
D3 BAV70
13
2
R36
10k
LD126
LD42
R49
100k
R9
100
LD21
LD7
U6
74HC245 TSSOP
2
3
4
5
6
7
8
9
19
1
18
17
16
15
14
13
12
11
A1
A2
A3
A4
A5
A6
A7
A8
G
DIR
B1
B2
B3
B4
B5
B6
B7
B8
+
C3
10u
R47 100
G
S6
LD48
LD33
LD16
R24
150
R50 0R
cw
VR7
10k Lin panelpot
S41
D6 BAV70
13
2
D9
BAV70
13 2
LD2
R37
10k
S19
D13
BAV70
13 2
+
C2
10u
R42
10

A
A
B
B
C
C
D
D
E
E
4 4
3 3
2 2
1 1
Printerscale=0.92 PCB=2R-J1443-010110
Revision History:
Rev.0.x to 1.00: main
developement.
1.10: Fuseholder modified.
1
Nord Power vers 1.10
A4
1 1Wednesday, January 10, 2001
Title
Size Document Number Rev
Date: Sheet of
+12
-12
-5
+5
+3.3
D4 1N5401
D5 1N5401
D3 1N5401
D7 1N5401
C1
4700p Rifa PME 271 250V
L1
SHAFFNER RN 112-0.8 2*10mH
12 34
T1
Trafo TD7680 4*6V 22VA
1
2
3
4
5
6
7
8
9
10
11
12
P1
Power connector HEIL 2573....
1
2
C3
4700p Rifa PME 271 250V
U1 MIC29150-3.3BT TO220
1 3
2
in out
gnd
H2
HeatSink K18
H1
HeatSink K18
C7
1000u 40V Rifa
C4
10u
C5
3300u 25V Rifa
C6
10u
C8
10u
U3
7812 TO 220
1 3
2
in out
gnd
U4
7912 TO220
2 3
1
in out
gnd
U5
7905 TO 220
2 3
1
in out
gnd
U2 2940 TO220
1 3
2
in out
gnd
C10
10u
D8 1N5401
C9
1000u 40V Rifa
S2 MainSelector Arcolectric X2225C
1 2
5 6
43
D1
1N5401
D2
1N5401
P2
CON10pol
1
2
3
4
5
6
7
8
9
10
D6 1N5401
C2
10u
S1
ITT/shadow NE18 1 2
3 4
M1
M2
M3
F1
Fuseholder Shurter 0031.3577 FAU
1 2
C11
0.1u