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Electronic schematics
All electronic schematics redrawn by J.H.G. Rothengatter
D&R Electronica Weesp B.V. Rijnkade 15b, 1382 GS , Weesp, The Netherlands, Phone: +31 (0)294 - 418 014, Fax: +31 (0)294 - 416 987, Mail: info@d-r.nl
Revision 0.1 Replaced old electronical drawings on base of
reversed engineering. Added PCB layout’s.
Title:
Frontpage
Redrawn by: J.H.G. Rothengatter
Date: 30-04-2013
Revision: 0.1
Page 15
Line
Input
Shaft
Ring
Tip
Microfone
Input
47µF/25V
+
C1
47µF/25V
+
C2
Fader
10KB
4,7pF
C5
R11
180K
13
12
14
A3
A
R300
47
+
+15 V
47µF/25V
7
4
A2...A5
TL074
11
A1
TDA1034
4
C300
47µF/25V
C301
0
0
47
-15 V
-
R29
68K
680
R31
D2
T1
BC546
BC546
R301
-
47µF/25V
+
C13
Echo
T2
R28
10k
4K7
R22
-
R24
4K7
47k
R23
P7
Pan
10KA
R25
47k
R26
10KB
P6
47k
R27
47K
P
L
R
E
F
PFL
Mix bus
LEFT
Mix bus
RIGHT
Mix bus
ECHO
Mix bus
FOLDBACK
Mix bus
47µF/25V
+
C14
PFL
56K
R30
S1
F1
a
10KB
c
47µF/25V
b
+
C11
5
+
-
6
A5
-
7
15pF
47K
R19
1K
C12
1K
R21
R20
R2
R1
560
-
R3
560
-
8K2
R8
2
3
R4
8K2
A1
5
22pF
6
3
8
2
Cx
47µF/25V
1
A2
gain
R5
-
+
C3
P1a P1b
22KB
330
1K
R6
100
R10
18K
gain
R7
47K
22KB150
R9
+
47µF/25V
R12
10K
A
C8
R17
10K
10nF
low
high
mid
22nF
100KA
100KA
C9
-
C6
P4
1nF
C7
6.8nF
C4
….KA = LIN
….KB = LOG
R13
10K
R14
47K
R15
18K
P2
R16
9
A4
10
8
47µF/25V
+
C10
Foldback
-
P5
10K
R18
10K100KA
P3
D&R Electronica Weesp B.V. Rijnkade 15b, 1382 GS , Weesp, The Netherlands, Phone: +31 (0)294 - 418 014, Fax: +31 (0)294 - 416 987, Mail: info@d-r.nl
Title:
MR 600 MONO CHANNEL
Redrawn by: J.H.G. Rothengatter
Date: 30-04-2013
Revision: 0.1
Page 16
INSERT
INPUT
Tip
Ring
Shaft
Left
Right
R1
100K
47µF/25V
C1
22nF
10nF
low
high
C6
100KA
P4a
1nF
C7
6.8nF
P2a
R11
10K100KA
R12
47K
R13
18K
R14
10K
6
5
7
A3
A
R9
180K
R10
10K
4,7pF
5
6
R3
100K
33nF
R2
390
7
A1
R4
10K
6,8nF
C2
R5
47µF/25V
+
100
-
C4
R6
47K
P1a
gain
22KB
R7
150
R8
18K
C3
C5
6
5
7
A2
C8
C9
+
R15
10K
mid
P3a
R16
10K100KA
22nF
R41
100K
47µF/25V
C41
2
3
R43
100K
33nF
390
R42
C42
1
A5
R44
10K
6,8nF
+
C43
R45
47µF/25V
+
100
C44
-
P1b
47K
R46
gain
22KB
150
R47
….KA = LIN
….KB = LOG
D&R Electronica Weesp B.V. Rijnkade 15b, 1382 GS , Weesp, The Netherlands, Phone: +31 (0)294 - 418 014, Fax: +31 (0)294 - 416 987, Mail: info@d-r.nl
R48
18K
10nF
low
high
C46
100KA
P4b
1nF
C47
6.8nF
P2b
R51
10K100KA
R52
47K
R53
18K
R54
10K
2
3
1
A7
B
R49
180K
R50
10K
4,7pF
C45
2
3
1
A6
C48
C49
R55
10K
mid
R56
10K100KA
P3b
MR600 – STEREO CH -1
Title:
Redrawn by: J.H.G. Rothengatter
Date: 30-04-2013
Revision: 0.1
Page 17
R300
47
+15 V
+
47µF/25V
PFL
680
R27
R25
68K
R65
T1
68K
47µF/25V
R26
56K
S1
R18
C12
BC546
+
-
D1
BC546
T2
7
A4,A8
TL072
4
7
A3,A7
TL072
4
4K7
7
A2,A6
TL074
4
7
A1,A5
TL072
4
C300
47µF/25V
C301
R301
0
0
47
-15 V
-
PFL
P
Mix bus
4K7
R58
47µF/25V
A
-
+
C10
F1
a
47µF/25V
b
10KB
c
-
+
C11
5
+
6
-
47µF/25V
7
A4
+
C12
4K7
R22
47k
R23
LEFT
L
Mix bus
1K
Foldback
P5b
22KB
R19
47K
R21
1K
R20
Echo
22KB
P6b
R24
47k
ECHO
E
Mix bus
R17
47K
47µF/25V
B
+
C50
Foldback
P5a
-
F2
a
47µF/25V
b
10KB
c
-
+
C51
3
2
22KB
1K
47K
R60
R59
R57
47K
D&R Electronica Weesp B.V. Rijnkade 15b, 1382 GS , Weesp, The Netherlands, Phone: +31 (0)294 - 418 014, Fax: +31 (0)294 - 416 987, Mail: info@d-r.nl
P7
Pan
10KA
1
47µF/25V
+
C52
+
A8
-
R62
4K7
-
R63
47k
RIGHT
R
Mix bus
1K
R61
R64
Echo
22KB
P6a
47k
FOLDBACK
F
Mix bus
Title:
MR600 – STEREO CH -2
Redrawn by: J.H.G. Rothengatter
Date: 30-04-2013
Revision: 0.1
Page 18
ECHO return L
LEFT Mix bus
+15 V
-15 V
10pF
C2
R2
100K
L
47µF/25V
+-
El
El
C1
P1
10KB
2
3
R1
10K
TDA1034
47µF/25V
6 2
A1
+
Fader
-
a
C3
10KB
c
R3
47K
b
R4
150K
10pF
C4
47µF/25V
A2
3
TL071
R5
100
6
-
+
C5
R6
47K
R7
100
L
LEFT
out
R300
+
0
0
-
47
47
R301
47µF/25V
C300
47µF/25V
C301
100nF
+
-
C302
100nF
+
-
C303
7
A1
TDA1034A2TL071
4
7
4
D&R Electronica Weesp B.V. Rijnkade 15b, 1382 GS , Weesp, The Netherlands, Phone: +31 (0)294 - 418 014, Fax: +31 (0)294 - 416 987, Mail: info@d-r.nl
Title:
MR600 – LEFT CHANNEL
Redrawn by: J.H.G. Rothengatter
Date: 30-04-2013
Revision: 0.1
Page 19
ECHO return R
RIGHT Mix bus
+15 V
-15 V
10pF
C2
R2
100K
R
47µF/25V
+-
Er
Er
C1
P1
10KB
2
3
R1
10K
TDA1034
47µF/25V
6 2
A1
+
Fader
-
a
C3
10KB
c
R3
47K
b
R4
150K
10pF
C4
47µF/25V
A2
3
TL071
R5
100
6
-
+
C5
R6
47K
R7
100
R
RIGHT
out
R300
+
0
0
-
47
47
R301
47µF/25V
C300
47µF/25V
C301
100nF
+
-
C302
100nF
+
-
C303
7
A1
TDA1034A2TL071
4
7
4
D&R Electronica Weesp B.V. Rijnkade 15b, 1382 GS , Weesp, The Netherlands, Phone: +31 (0)294 - 418 014, Fax: +31 (0)294 - 416 987, Mail: info@d-r.nl
Title:
MR600 – RIGHT CHANNEL
Redrawn by: J.H.G. Rothengatter
Date: 30-04-2013
Revision: 0.1
Page 20
FOLDBACK Mix bus
+15 V
-15 V
10pF
C2
R2
100K
F
10K
El
R1a
2
3
R1
10K
TDA1034
Er
10KB
P1b P1a
10KB
47µF/25V
6 2
A1
+
Fader
-
a
C3
10KB
c
R3
47K
b
R4
150K
10pF
C4
47µF/25V
A2
3
TL071
R5
100
6
-
+
C5
R6
47K
R7
100
F
FOLDBACK
out
R300
+
0
0
-
47
47
R301
47µF/25V
C300
47µF/25V
C301
100nF
+
-
C302
100nF
+
-
C303
7
A1
TDA1034A2TL071
4
7
4
D&R Electronica Weesp B.V. Rijnkade 15b, 1382 GS , Weesp, The Netherlands, Phone: +31 (0)294 - 418 014, Fax: +31 (0)294 - 416 987, Mail: info@d-r.nl
Title:
MR600 – FOLDBACK CH
Redrawn by: J.H.G. Rothengatter
Date: 30-04-2013
Revision: 0.1
Page 21
+15 V
-15 V
VU
- LEFT
- PFL
LV
RV
- FOLDBACK
- ECHO
+
-
VU
- RIGHT
+
-
L
R
F
E
LEFT
RIGHT
FOLDBACK
ECHO
Pfl
Echo
S1
à
à
à
à
1
2
3
4
6
A
VR1
22KA
7
8
C
9
10
7
VR2
22KA
Left/Right
5
Foldback
4
2
10pF
C1
R1
100K
6
A1
5
7
47µF/25V
+
C2
Fader
R2
9
-
47K
a
b
10
10KB
c
10pF
C3
R3
150K
A2
100
-
+
C4
47µF/25V
R4
8
R5
E
ECHO
send
47K
1
82pF
9
10
1K
R10
-
+
12
13
1K
R13
-
+
A5
8K2
R11
47µF/25V
C7
A6
8K2
R14
47µF/25V
C8
R12
8
3K9
R15
14
3K9
C5
R6
PFL
P
10K
13
12 1
14
A3
R7
10K
R8
18K
2
A4
3
47µF/25V
+
C6
3
-
R9
47K
Rotary switch PCB
P1a
Volume
Phones
22KB
47µF/25V
+
C9
-
10 pF
C11
12
A7
13
R19
14
47
8K2
R18
R16
1K
R17
….KA = LIN
….KB = LOG
100K
47µF/25V
+
C10
PL
PR
PHONES
out
R300
3
2
1K
47µF/25V
+
C13
10pF
C14
A8
47
R23
1
8K2
R22
+
0
0
-
47
47
R301
47µF/25V
C300
47µF/25V
C301
4
A1, A4,
A5, A6
TL074
11
A2, A3,
A7, A8
TL074
P1b
Volume
4
11
Phones
22KB
47µF/25V
+
C12
-
R20
R21
100K
-
D&R Electronica Weesp B.V. Rijnkade 15b, 1382 GS , Weesp, The Netherlands, Phone: +31 (0)294 - 418 014, Fax: +31 (0)294 - 416 987, Mail: info@d-r.nl
Title:
MR 600 Echo + Phones + PFL
Redrawn by: J.H.G. Rothengatter
Date: 30-04-2013
Revision: 0.1
Page 22
Mains
230V- 50Hz
Heatsink
EC
T1
Transformer
12 11 10 2
6
D1 D2
-
4 x 1N1401
OFF
Mains
ON
Fuse
500mA
P
G
S1
H1
230VAC
D3 D4
+
4700µF/
25V
+
-
C1
5
7
B
IC1
Heatsink
R7
N
2K2
12 11 10 2
6
D5 D6
-
4 x 1N1401
+
4700µF/
25V
+
-
C4
5
IC2
EC
T2
B
D7 D8
TR1
7
1
R1
1W
3
R2
8K2
100µF/
4
C2
1nF
13
R3
6K8
25V
+
-
C3
+15V
+
0
0V
1
R4
1W
3
R5
8K2
100µF/
4
C5
1nF
13
R6
6K8
25V
+
-
C6
-
-15V
T1,T2 = BD237
IC1, IC2 = UA723
D&R Electronica Weesp B.V. Rijnkade 15b, 1382 GS , Weesp, The Netherlands, Phone: +31 (0)294 - 418 014, Fax: +31 (0)294 - 416 987, Mail: info@d-r.nl
Title:
MR600 – Power Supply
Redrawn by: J.H.G. Rothengatter
Date: 30-04-2013
Revision: 0.1
Page 23
mic line
S1
echolow foldbackmidhighgain
pan
pfl
LED
R8
mic insert
R1
R41
45
3
6
A1
2
7
A5
8
1
R5
C41
R42
R43
C43
+
C1
C2
R2
+
R3
R4
C3
1234
P3
R2
mid
P3b
P3a
C7
R12
R18
R11
1413121110 9
A3
A2
1 2 3 4 5 6 7
TL074
R56
R16
C9
C8
R
R13
6
7
8
C9
A4
A5
A3
R15
R50
R10
A7
R13
-
R17
+
8
R20
R21
C8
R16
R12
C6
R14
C10
+
C301
R27
C6
R301
+
F
F
R26
R23
E
L
E
L
R24
R22
R25
R
-
-
R
+
C300
0
R31
R300
+
+
+
C14
+
R28
P
P
T2
T1
R29
C11
+
R30
R19
F1a
F1c
F1b
MONO CHANNEL
45
3
2
1
R53
R54
P4b
P4a
C6
low
R52
S1
foldback
P5b
C56
R51
R17
P5a
R57
R11
+
C10
+
50
C
C52+C12
+
R20
echo
P6b
R26
P6a
R56
F E L
45
3
6
A4
2
7
A8
1
8
R21
R19
R22
R23
-
R301
R61
pan
P7
R63
R62
R
0
R59
R60
+
C300
C11
+
C51
+
R300
+
pfl
R18
R58
LED
F1c / F2c
+
R25
R65
T2
R26
T1
F1a F1b
F2a F2b
C12
R27
P
R9
R4
P1a
R6
R3
R7
C4
+
C3
+
gain
P1b
R47
P1a
R46
C42
R44
-
C44
+
R45
R6
C4
+
C301
+
R7
R8
C5
R9
45
3
6
A2
2
7
A6
1
8
P2P1b P4 P5 P6 P7
R3
C2
+
high
P2b
P2a
C47
R48
C48
C55
R49
C49
R1
+
C1
C7
C5
R10
A1
5 678
Cx
TDA1034
R55
R15
TL072 TL072TL072
STEREO CHANNEL
D&R Electronica Weesp B.V. Rijnkade 15b, 1382 GS , Weesp, The Netherlands, Phone: +31 (0)294 - 418 014, Fax: +31 (0)294 - 416 987, Mail: info@d-r.nl
D&R Electronica Weesp B.V. Rijnkade 15b, 1382 GS , Weesp, The Netherlands, Phone: +31 (0)294 - 418 014, Fax: +31 (0)294 - 416 987, Mail: info@d-r.nl
MR600 – PCB CHANNELS
Title:
Redrawn by: J.H.G. Rothengatter
Date: 26-05-2013
Revision: 0.1
Page 24
VR2
RV
RV
VR1
LV
LV
1413121110 9
A6
R8
A4
1 2 3 4 5 6 7
C C1
TL074
TDA1034
TL071
C8
+
R14
R15
R13
C6
+
0
F
E
L
-
L
-
R300
R
+
R301
C300
+
C302
+
6
A1
7
8
P
45
3
2
1
R1a
R2
L
El
+
C301
C1
+
El
P1
R1
R7
C303
F1b
45
3
6
C5
+
A2
2
7
R5
1
8
R6
F1a
R3R4
C4
F1c
E
+
C2
C3
LEFT MASTER CHANNEL
R9
E
3 4 5 6 71 2
F
F
R
R
L
L
E
C301
+
-
R301
-
P1b
P1a
Volume
8
A5
A1
R1
R7
R300
0
+
C300
+
+
C12
+
C9
R12
R11
+
R10
R6
P
P
R23
R22
C13
+
C7
+
C5 C3
1413121110 9
A3
TL074
A8
1 2 3 4 5 6 7
C14 C11
R21
R20
+
C10
PHONES / PFL / ECHO / VUecho
+
C2
8
A2
R17
R16
C4
+
R4A7R3
R18
R19
F1a
F1b
L
R
R2 R
PL
PR
phones
3 4 5 6 71 2
TDA1034
0
-
R
F
L
E
R
-
R300
+
C1
C300
+
P1
R
Er
R301
+
C301
+
C302
+
6
A1
7
8
P
45
3
2
1
R1a
Er
R2
R1
R7
C303
C5
+
+
C2
C3
TL071
2
1
3
4
F1b
45
3
6
A2
2
7
R5
1
8
R6
F1a
R3R4
C4
F1c
5
A
6
7
12
11
10
9
C
8
Note:
PCB view
2-pole 4 positions
rotary switch
echo
TDA1034
0
F
F
E
-
L
R
-
R300
F
R301
+
C301
+
C300
P1b
P1a
+
C302
+
45
3
6
A1
2
7
1
8
R1a
Er
El
R2
R1
C303
P
C5
+
C2
echo
RIGHT MASTER CHANNEL
TL071
R7
F1b
45
3
6
A2
2
7
R5
1
8
R6
F1a
R3R4
C4
F1c
+
C3
FOLDBACK MASTER CHANNEL
D&R Electronica Weesp B.V. Rijnkade 15b, 1382 GS , Weesp, The Netherlands, Phone: +31 (0)294 - 418 014, Fax: +31 (0)294 - 416 987, Mail: info@d-r.nl
MR600 – PCB MASTER CHANNELS
Title:
Redrawn by: J.H.G. Rothengatter
Date: 26-05-2013
Revision: 0.1
Page 25
+ C4
1
14
2
13
3
PG N
FUSE
R7
R4
TR1
12
4
11
5
10
6
9
7
8
R5
+
C6
T2 T1
R6
C5
D6D8D5
-
-
D7
0
+
+
1
14
2
13
3
12
4
R1
11
5
10
6
9
7
8
R3
R3
+
C2
C3
D2D4D1
D3
+ C1
PL
PR
S1
UA723
UA723
Phones
out
D&R Electronica Weesp B.V. Rijnkade 15b, 1382 GS , Weesp, The Netherlands, Phone: +31 (0)294 - 418 014, Fax: +31 (0)294 - 416 987, Mail: info@d-r.nl
PCB Power Supply
Title:
Redrawn by: J.H.G. Rothengatter
Date: 26-05-2013
Revision: 0.2
Page 26
Input echo l+r
Output echo
Output foldback
Output right
Ouput left
Er El
LRFE
mic
INPUT
P G
N
line
GAIN
- +
LVRV
- +
HIGH
MID
Cabling
LOW
FOLDBACK
Rotay switch
-
0
+
LV
RV
E
F
Er
R
Er
El
Er
L
El
F
E
L
-
R
0
El
+
P
F
E
L
-
R
0
+
P
F
E
L
ECHO
-
R
0
PAN
+
pfl
P
overload
PL
PR
CHANNEL
PL
PR
POWER SUPPLY
PHONES/PFL/ECHO/VU
RIGHT MASTER CHANNEL
FOLDBACK MASTER CHANNEL
LEFT MASTER CHANNEL
ECHOPHONES
CHANNEL
CHANNEL
CHANNEL
CHANNEL
CHANNEL
CHANNEL
CHANNEL
CHANNEL
CHANNEL
CHANNEL
CHANNEL
123456789101112LEFTRIGHTFOLD-
BACK
Note: Seen from backside of the front plane
D&R Electronica Weesp B.V. Rijnkade 15b, 1382 GS , Weesp, The Netherlands, Phone: +31 (0)294 - 418 014, Fax: +31 (0)294 - 416 987, Mail: info@d-r.nl
Wiring and mixbus scheme
Title:
Redrawn by: J.H.G. Rothengatter
Date: 26-05-2013
Revision: 0.1
Page 27
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