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1
2
3
4
V+
VH
Digital Delay / DD-800
R21 33k R34 R37 C31 470p C30 R32
1
C21 2.2µ R24 10k R25 47k C24
D
R1 27k
XON
D
R2 27k
C4 47µ
22k
D31 1N4148 Q31 2SK30A
2 3
C33 47n
1M
2.7n
EXTERNAL POWER SUPPLY
5 4 1
3 4 VH 5
V+ 3
I -
O
R31 22k C2 47µ W1 WIRE C3 100n
R35 330k
C22
3
9
F1 22000pF
U5 78L05
1
VCC
R33
C32
1 2
C34 2.2µ R36 330k
JP1A JP2A XSIP9 XSIP9
3 1 1
Delay Level
3
2.2µ 22k
C23 100p
V+
15k U4A 4558S
2.2µ
P21 B50k
2 2
OUTPUT
3
R22
1
1
J4 J7001
D1 1N4001
Repeat
VH VH
P31 B50k
3
7 6
U4B
8
J2
C25
2
2.2µ 47k JP2C JP1C XSIP9 XSIP9
C1 220µ
B1
2 1 PON V+ V+ V+ V+ V+
W8 WIRE
R38 47k
4558S
VH
2
3.3µ R26 200k
1
J8004
XGND D-GND
PGND
Tone
3
W9 WIRE W4 WIRE
D-GND D-GND
(XGND=GND of Control-PCB) (PGND=GND of Switch & Pots)
JP2B XSIP9 JP1B XSIP9
7 6 2
W5 WIRE
P32
2
SNAP W2 W3 W6 W7 WIRE WIRE WIRE WIRE
C
2
B50k R17
1
V+ 9 8
Signal Processor
VCC 39 40
DRAM 256
VCC C
Vcc
2
J1
3
Q11 2SK222E C11 R11 68k
3
R14 10k C12
C13 2.7n C14 100p
V+
2.2µ
XGND
2 1
R39 330k
VH
U3B 4558S
R40 15k C37 2.2µ
C47 6.8n C48 0.47µ C49 150n
NC
INPUT
V+
33k
C35 C36 0.1µ
PT2395
37 38 36 35 34 33 31 LPF2out1 LPF2out2 LPF2in1 LPF2in2 OP2out OP2in LPF-1in LPF1out OP1out
U1
A0 A1 A2 A3 A4 A5 A6 A7 A8 RAS CAS W D0 MDI OSCX 9 5 11 7 10 6 15 12 14 11 13 10 2 13 12 9 1 1 8 4 4 15 7 3 6 2 3 14 24 25 26 17 18 16
U2 AM90C256-08PC(16)
A0 A1 A2 A3 A4 A5 A6 A7 A8 RAS CAS W D Q VCC 8
C56 100p
47n
R15 47k R16 10k
1 3 4 5
1
U3A
2
C15
J8004 R12 1M 2.2µ R13 3.3k
R18 R42 47k
4558S 2.2µ 33k
C50 220p C51 0.1µ R46 10k
Ref
JP1H XSIP9
VH VCC
VH
Short / Long - Delay
JP2F XSIP9
6 3 6 1 4
D-GND
JP2H XSIP9
30 29 28 19 20 27 22 23 32
VSS
16
VCC
JP1F XSIP9
6
SW41A
2 5
JP2I XSIP9
9 9
C55 33p R49 220
R48 910
P41 A5k
1 3
RESET
KSA-2240A
B
CDI
JP1I XSIP9
OP1in SHORT SEL REF MID LONG A-GND
OSCO OSCI CC1 CC2 D-GND
8 7
8 7
JP1G XSIP9
JP2G XSIP9
Delay Time
B
Comparator
R43 2.2k
V+ 21 D-GND 8 6 5 5 V+ D-GND VCC
C53 0.1µ
C54 0.1µ
REMOTE
J3
3 2 1
C44 4.7µ R203 100 C45 4.7n C203 47µ
2 3
U6 LM311
7
VCC
R47 10k
D41 1N4148
R44 10k C46 100µ
4 1
D101 1N4148
R102 100k U101 4007
5 2 1SP 1DP 1DN 1SN VDD 2DP 3 2 1 5 4 14 13 8 7 11 12 9
C52 1µ Reset
D-GND
J8004
6 3
SW101A SW2204
4 1
R103 100k
XON
JP1D XSIP9
4
JP2D XSIP9 R105
4
D102 Led Green
2
All unspecified capacitors in µF, resistors carbon 5% All rights reserved - Copyright NOBELS Electronics e.K.
A
1A 2A 3A
R101 470k C101 1n
6 10
2DN VSS 3SP 3Y 3SN
R104 1M R110 47k C102 10n
2.2k
ON
JP2E XSIP9 JP1E XSIP9
5 5 Title No.: Date: File: 3
NOBELS ELECTRONICS
Barnerstrasse 42, 22765 Hamburg, Germany
www.nobels.com - email: [email protected]
A
CIRCUIT DIAGRAM
Digital Delay / DD-800
15-Apr-2003
DD-800 R4a.sch
4 Time:
Size: Sheet
XGND 1 2
18:52:32
A4 Rev: 4a 1 of 1