Q II - FOH
Schematics
Klark Teknik Building
Walter Nash Road
Kidderminster
Worcestershire
DY11 7HJ
Tel: +44 (0) 1562 741515
Fax: +44 (0) 1562 745371
Email: info@uk.telex.com
Website: www.ddaconsoles.com
Q II - FOH Schematics
Telex Communications (UK) Limited
In line with the company’s policy of continual improvement, specifications and function maybe subject
to change without notice. This Operator Manual was correct at the time of writing. E&OE.
Date: February 14, 1995 Sheet 1 of 1
Size Document Number REV
B CD1239-1 A
Title
POWER DISTRIBUTION (PC1357-1)
TEL:(0)81-570-7161 FAX:(0)81-577-3677
DDA, HOUNSLOW, MIDDX, TW3 2EB, ENGLAND.
TO MIDI
MODULE
D3
1N4001
1 2
LK2
1 2
LK1
1
2
3
4
5
6
7
8
CON1
8WAY
METWAY
C1
4700U
25V
D1
1N5402
+18V
C3
4700U
25V
VIN
1
0
V
2
VOUT
3
REG1
7805
0V
R1
27R
7W
C5
220U
25V
1
2
3
CON2
3WAY
METWAY
LK1 & LK 2 FITTED
R1,C3,C5,D3,REG1 NOT FITTED
THIS SUPPLIES +18V TO MIDI MODULE
N.B. NORMAL CONSOLE FITTED AS:
-18V
C2
4700U
25V
D2
1N5402
MWKGROUND
+48V
C4
100N
0V
R11
100R
LITTLELITE
1
2
3
CON13
3WAY
METWAY
R7
27R
7W
R8
27R
7W
+18V
0V
LITTLELITE
1
2
3
CON11
3WAY
METWAY
+18V
0V
R3
27R
7W
R4
27R
7W
+18V
0V
-18V
1
2
3
CON3
3WAY
METWAY
TO LED
METERBRIDGE
TO MICROFILE
MOTHERBOARDS
+18V
0V
-18V
1
2
3
CON4
3WAY
METWAY
R5
27R
7W
R9
27R
7W
LITTLELITE
1
2
3
CON14
3WAY
METWAY
R10
27R
7W
-18V
0V
LITTLELITE
1
2
3
CON12
3WAY
METWAY
-18V
0V
R6
27R
7W
Date: December 14, 1993 Sheet 1 of 1
Size Document Number REV
C CD1219-1 A
Title
HD/DCM/DCM HD AUDIO POWER SUPPLY
DDA LTD.
+48V [10]
CHASSIS
R45
10k
R46
10k
FRONT PANEL TEST POINT
R3
470R
R1
82R
R2
2k7 1W
PR1
500R
C3
33/63
FL1
0.25A Q
C1
1000/63
VI
1
2
VO
3
IC1
LM783
D1
2KBP02
FL4
3.15A Q
R42
100R
C22
100n
240V BROWN
220V PINK
VIOLET
RED
100
110
240
220
S1
TH1
SG200
FL5
SEE REAR PANEL
100V BLACK
110V BLUE
GREY
RED
YELLOW/BLUE
PHAN
PHAN
0V
D3
35A BRIDGE
BROWN
BLUE
YELLOW
BLUE
C6
100n
C4
10,000/40
C5
10,000/40
C2
33/63
FL2
15A Q/B
R6
0.1R
R7
0.1R
R8
0.1R
TR2
TR1
MJ2955
PC1141
R10
0.1R
R11
0.1R
R470.1R
R48
0.1R
REG
D20
LED
R43
3K3
9
[1] [2]
R13
1K5
+18V
FRONT PANEL TEST POINT
[5] [6] [7] [8] [9]
D17
1N5402
0V
R44
3K3
6
5
D15
LED
SENSE
DRIVE
DRIVE-
SENSE-
UNREG
UNREG-
R9
0.1R
R19
0.1R
TR3
TR4
TR8
TR7
8
7 10
14
3
C9
100n
C8
10,000/40
C7
10,000/40
E L N
MAINS FUSE 6.3A/T 20mm 220/240V
10A/T 20MM 110/120V
FL3
15A Q/B
R18
0.1R
R17
0.1R
R16
0.1R
TR6
R21
0.1R
R20
0.1R
R49
0.1R
R500.1R
RESISTORS R47, 48, 49, 50 NOT FITTED IN HEAVY DUTY SUPPLY
FL2 AND 3 FITTED AS 6.3A/Q IN HEAVY DUTY SUPPLY
TR5
2N3055
REG-
2
D16
LED
[3] [4]
R15
1K5
-18V
D18
1N5402
FRONT PANEL TEST POINT
(9)REG
R30
6k8
FL2 AND 3 FITTED AS 10A/Q IN DCM POWER SUPPLY
FL2 AND 3 FITTED AS 15A/Q IN DCM HD SUPPLY
R29
2k2
R28
2K2
R23
100R
TR10
BC212
D6
1N4002
R22
1R
TR21
TIP31
SENSE
DRIVE
(8)
(7)
PC1141
(10) UNREG
R26
75R
R24
100R
R25
3k3
D8
1N4148
D7
1N4148
TR9
BC212
TR22
BC441
C10
100/40
R27
3k3
TR11
BC182
TR12
BC182
D9
1N4148
D10
12V
TR14
BC182
TR13
BC212
C13
100p
C15
100n
C14
100/40
PR2
5k
R31
15k
0V
+48V
CHASSIS
0V
+18V
ORANGE
GREEN
GREEN/YELLOW
1
2
3
6
7
8
459
10 +48V
-18V
HARTING
BLUE
BLUE
BROWN
BROWN
+18V
-18V
C17
100N
C16
100/40
R32
15k
PR3
5k
D11
12V
C12
100/40
C18
100/40
TR16
BC182
C19
100p
TR15
BC212
TR18
BC212
R36
3k3
TR17
BC212
C20
100n
C11
100n
UNREG-
0V
R38
75R
R39
100R
TR20
BC182
R37
3k3
C21
100/40
D12
1N4148
D13
1N4148
(5)
(6)
(1)
(4)
(3)
R40
1R
TR23
TIP32
TR24
2N5322
DRIVE-
SENSE-
R41
100R
TR19
BC182
D14
1N4002
R34
R2k2
R35
2k2
(2)REG-
R33
6k8
Date: June 28, 1994 Sheet 1 of 1
Size Document Number REV
B CD1258-A (SEE CD1257-A) A
Title
Q2 DUAL MONO OUTPUT (LOGIC)
TEL:(0)81-570-7161 FAX:(0)81-577-3677
DDA, HOUNSLOW, MIDDX, TW3 2EB, ENGLAND.
R208
47R
V+LED
D48
D49
V+LED 1
2
3
IC33A
CD4093
5
6
4
IC33B
CD4093
UCUELEDA
R187
47K
TR4
BC212
R188
100K
VDDVDD
R186
47K
D38
D
9
Q
13
CLK
11
Q
12
R
1
0
S
8
IC32B
4013
FLASH
VSS
R182
10K
C102
47N
VDD
VSSV-LED
CUE
STEREO
1
2
3
4
CON14
4WAY
MH
VDD
R180
2K2 R181
47KC101
22U
25V
D31
8
9
10
IC33C
CD4093
VSS
R183
2K2
R184
1M
D32
8
9
10
IC34C
CD4001
VDD
D35
R189
100K
R190
10K
TR5
BC182
V-LED
VSS
V-LED
R207
33K
V-LED
TR8
BC212
LED1
R210
47R
V+LED
D50
D51
V+LED
OPSOLOEN
USOLO
R192
10K
D39
D37
12
13
11
IC34D
CD4001
R191
220K
VSS
R185
100K
D33
D34
9V1
R193
100K
C103
22U
25V
RESET
VDD
MONO
VSS D36 VSS
R209
33K
V-LED
TR9
BC212
LED11
C107
2U2
63V
VDDR211
10R
C106
2U2
63V
VIN
1
0
V
2
VOUT
3
IC35
78L05
LCUELEDA
R202
47K
R205
10K
TR6
BC212
TR7
BC182
R203
100K
VDDVDD
R201
47K
D46
D
5
Q
1
CLK
3
Q
2
R
4
S
6
IC32A
4013
FLASH
VSS
R196
10K
R197
2K2
C105
47N
VDD
VSSV-LED
CUE
R194
2K2
D40
1
2
3
4
CON15
4WAY
MH
VDD
R195
47KC104
22U
25V
12
13
11
IC33D
CD4093
VSS
R198
1M
D41
1
2
3
IC34A
CD4001
VDD
D43
5
6
4
IC34B
CD4001
R204
100K
V-LED
LSOLO
V-LED
+18V
R212
10R
R214
10R
C108
220U
25V
C110
22U
25V
0V TEST POINT
VSS
V+LED
V+
VSS
V+LED
1
2
PL1
C111
22U
25V
V-LED
V-
V-LED
R213
10R R215
10R
C109
220U
25V
-18V
GNDOPSOLOEN
R206
10K
D47
D45
R200
220K
VSS
R199
100K
D42
D44
9V1
RESET
D64
VSS
MWKGROUND
VR1
VR5
1
1
BRKT1
1
1
BRKT2
LAST IC
LAST R
LAST C
LAST TR
LAST D
LAST SW
LAST CON
LAST LK
LAST VR
LAST LED
IC35
R218
C111
TR9
D65
SW20
CON16
LK15
VR5
LED44
Date: June 30, 1994 Sheet 1 of 1
Size Document Number REV
D CD1257-A (SEE CD1258-A) A
Title
Q2 DUAL MONO OUTPUT
TEL:(0)81-570-7161 FAX:(0)81-577-3677
DDA, HOUNSLOW, MIDDX, TW3 2EB, ENGLAND.
R66
10K
R67
10K
R68
2M2
R69
10K
C53
100U
16V
D13
TR1
J111
C51
220N
C52
33P
R70
75R
5
6
7
IC15B
TL072
DIM
LED8
RED
R60
1K
R63
10K
R65
10K
C50
100U
16V
3
2
1
8
4
IC15A
TL072
R59
1K
SW8
2PSUJ
LED10
V-
V+
ON
LED7
GRN
SW7
4PSUJ
C37
220N
3
2
1
8
4
IC5A
NE5532
R41
10K
R38
680K
LED7
SUBU
V+
V-
C39
100U
16V
R30
75R
C32
33P
3
2
1
8
4
IC2A
NE5532
1
2
3 7
VR3A
20KB
ALPSCD
R27
680K
R37
9K1
POSTU
V+
V-
C33
100U
16V
FADER BUFFER
GROUP FADER
INSERT
LED4
RED
R8
10K
C8
100U
16V
C31
220N
123
CON10
3WAY
PIN
R26
220K
SW4
2PSUJ
POSTINSU
PREINSU
PREU
LED4
LED5
INSERT
RETURN
2
6
4
3
715
IC4
SSM2143
D2
21 3 4 5
CON4
1/4JACKSL
21 3 4 5
CON5
1/4JACKSL
V1+
V1-
SEND
INSERT
R4
4K7
C3
33P
C4
100U
16V C5
100U
16V
C6
100U
16V
C7
100U
16V
5
6
7
IC2B
NE5532
8
6
4
3
7
215
IC3
SSM2142
D1
R5
10K
V1+
V1+
MONITOR
UPPER
R1
75R
R3
4K7
L1
0H
C1
33P
3
2
8567
4
IC1
NE5534
R2
24K
BUSREF
UPPERMIX
V2-
V2+
MON1
MON2
MON13
MON3
MON4
MON14
MON5
MON6
MON15
MON7
MON8
MON16
MON9
MON10
MON11
MON12
R171
10R
R172
10R
C2
22P
C25
22U
25V
C26
22U
25V
1 2
3
5
7
9
11
13
15
4
6
8
10
12
14
16
LK2 16WAY
IDCVM
1 2
3
5
7
9
11
13
15
4
6
8
10
12
14
16
LK3 16WAY
IDCVM
BUS1
BUS3
BUS5
BUS7
BUS9
BUS11
BUS2
BUS4
BUS6
BUS8
BUS10
BUS12
BUS1C2
BUS3C4
BUS5C6
BUS7C8
V+
V-
C27
220N
D3
V2+
V1-
V1-
V2-
R7
10K
D4
R6
10K
V+
V-
V1+
V1-
R82
33R
R83
33R
C60
22U
25V
C61
22U
25V
R28
10K
4
5
6 8
VR3B
20KB
ALPSCD
R29
4K7
R42
9K1
C40
220N
5
6
7
IC5B
NE5532
R47
10K
R44
680K
C42
100U
16V
TB
SUB
PHASE
LED3
GRN
LED6
RED
SW6
2PSUJ
LED5
RED
SW5
2PSUJ
R64
10K
TBACK
LED7
LED5
V+
V-
R79
100K
C58
100N
V-
R85
10K
C62
100U
16V
C63
100U
16V
8
6
4
3
7
215
IC17
SSM2142
R84
10K
D56
D57
D58 D59
MONU+
MONU-
V1-
V1+
SUB
SW3
4PSUJ
R80
4K7
R81
4K7
C59
100U
16V
LED11
GRN
SW11
4PSUJ
LMIX
RMIX
LED3 LED4
LED12
ON
LED15
GRN
SW15
4PSUJ
C46
220N
3
2
1
8
4
IC14A
NE5532
R55
680K
R56
10K
LED11
LED15
LED16
V+
V-
C47
100U
16V
R49
680K
R52
75R
C44
33P
3
2
1
8
4
IC11A
NE5532
1
2
3 7
VR5A
20KB
ALPSCD
R53
9K1
POSTL
V+
V-
C45
100U
16V
FADER BUFFER
GROUP FADER
INSERT
LED12
RED
SW12
2PSUJ
R48
220K
C43
220N
123
CON12
3WAY
PIN
LED12 LE D13
PREINSL
POSTINSL
PREL
INSERT
RETURN
D9 D10
21 3 4 5
CON8
1/4JACKSL
21 3 4 5
CON9
1/4JACKSL
V1+
SEND
INSERT
R20
4K7
C19
33P
C20
100U
16V C21
100U
16V
C22
100U
16V
5
6
7
IC11B
NE5532
8
6
4
3
7
215
IC12
SSM2142
V1+
V1+
MONITOR
MON17
MON18
MON19
MON20
LOWER
R19
4K7
L3
0H
C17
33P
3
2
8567
4
IC10
NE5534
1 2
3
5
7
9
11
13
15
4
6
8
10
12
14
16
LK1 16WAY
IDCVM
R18
36K
BUS13
BUS15
BUS14
BUS16
LOWERMIX
V2-
ON
UPPER
SW1
2PSUJ
LED1
GRN
R17
75R
C18
22P
R25
100K
LED1
BUSREF
V2+ R21
10K
C23
100U
16V
V1-
V1-
R23
10K
2
6
4
3
715
IC13
SSM2143
D11 D12
R22
10K
V1- R24
10K
C24
100U
16V
C86
22U
25V
R50
10K
4
5
6 8
VR5B
20KB
ALPSCD
R51
4K7
R54
9K1
D20
18V
D21
18V
D22
18V
V+LED V+LED V+LED
C48
220N
5
6
7
IC14B
NE5532
R57
680K
R58
10K
D23
18V
V+LED
C49
100U
16V
DIM
LED16
RED
R101
4K7
R102
4K7
C64
100U
16V
LED16 LED17
R89
10K
R99
10K
C67
100U
16V
C68
100U
16V
8
6
4
3
7
215
IC18
SSM2142
1 2
3
5
7
9
11
13
15
4
6
8
10
12
14
16
LK4
16WAYIDCVM
R88
10K
D60 D61
D62 D63
MONL+
MONL-
MON1
MON2
MON3
MON4
MON5
V1+
V1-
R98
2M2
C72
33P
C73
100U
16V
1 2
3
5
7
9
11
13
15
4
6
8
10
12
14
16
LK5
16WAYIDCVM
1 2
3
5
7
9
11
13
15
4
6
8
10
12
14
16
LK6
16WAYIDCVM
C71
220N
5
6
7
IC19B
TL072
R100
75R MON10
MON12
MON14
MON16
MON11
MON13
MON15
MON6
MON7
MON8
MON9
MON17
MON18
PHASE
SW16
2PSUJ
LED13
RED
SW13
2PSUJ
R93
10K
R94
10K
R95
10K
R96
10K
R97
10K
D14
TR3
J111
C70
100U
16V
3
2
1
8
4
IC19A
TL072
LED15
LED13
SUBL
V-
V+
TB
-21
LED14
RED
SW14
2PSUJ
R91
1K
LED27
GRN
LED28
GRN
LED29
GRN
R90
1K
V-LED
+12
UPPER
R134
270K
R135
47K
R136
10K
R137
10K C88
10U
16V
V+
1
I
2
I
/
P
3
T
/
C
4
D
1
2
5
D
1
1
6
D
1
0
7
D
9
8
D
8
1
0
D
7
1
1
D
6
1
2
D
5
1
3
D
4
1
4
D
3
1
5
D
2
1
6
D
1
1
7
0
V
9
D
O
T
1
8
IC30
BA683A
LED18
RED
LED19
RED
LED20
RED
LED21
RED
LED22
GRN
LED23
GRN
LED24
GRN
LED25
GRN
LED26
GRN
PR5
500R
V-LED
V-LED
CAL
R132
22K
PR4
5K
V-LED
SOLO_L
V3+
VSSV3-
1 3
5 2
1
7
144
IC28A
SSM2404
10 8
6 9
IC28B
SSM2404
11 13
15 12
IC28C
SSM2404
R163
4K7
R164
4K7
R169
4K7
UPPERMIX
LOWERMIX
R217
24K
R218
24K
EXTERNAL INPUT
ON
C95
100U
16V
C99
100U
16V
2
6
4
3
715
IC25
SSM2143
2
6
4
3
715
IC27
SSM2143
R157
10K
SW19
2PSUJ
LED43
GRN
EXTL+
EXTU+
EXTU-
V1+
V1-
V1+
LISTEN
LOWER
LED2
YEL
SW2
2PSUJ
R162
10K
EXTL-
V1-
R167
10K
20 18
16 19
IC28D
SSM2404
R170
4K7
R216
10K
R165
100K
R138
10K
R141
10K
D15
SOLO_R
IPSOLOEN
SUBU
SUBL
D65
EXT METER
-21dB
ADJR133
2K2
R139
22K
R140
3K6
R142
22K
C89
22U
25V
3
2
1
8
4
IC23A
TL072
5
6
7
IC23B
TL072
1
2
3
4
CON13
4WAY
MHR/A
PR1
5K
1/4V
PR2
5K
1/4V
V-
V+
+12
C87
220N
LED30
RED
LED31
RED
LED32
RED
LED33
RED
LED34
GRN
LED35
GRN
LED36
GRN
LED37
GRN
LED38
GRN
D24
18V
D25
18V
D26
18V
V+LED V+LED V+LED
V-LED
LED39
GRN
LED40
GRN
LED41
GRN
D27
18V
1 2
LK12
1 2
LK13
TBACK
LED10
POSTU
POSTINSU
V+LED
PRE
LED10
RED
R103
100K
R105
10K
C74
100N
C75
100U
16V
C76
33P
3
2
1
8
4
IC20A
TL072
R106
1K
R104
10K
1
2
3
VR2
10KB
ALPSCD
SW10
2PSUJ
UCUELEDA
V+
V+
V-
V-
V-
R110
4K7
R117
4K7
C77
100U
16V
1 3
5 2
1
7
144
IC29A
SSM2404
10 8
6 9
IC29B
SSM2404
R109
10K
MON19
MON20
SOLO_L
V3+
VSSV3-
R124
4K7
R125
4K7
C83
100U
16V
11 13
15 12
IC29C
SSM2404
LSOLO
SOLO_R
USOLO
20 18
16 19
IC29D
SSM2404
PRE
LED17
RED
SW17
2PSUJ
R1071KR108
10K
R119
10K
C81
100U
16V
5
6
7
IC20B
TL072
3
2
1
8
4
IC21A
TL072
5
6
7
IC21B
TL072
LCUELEDA
V+
1 2
LK8
1 2
LK14
1 2
LK15
LED17
PREU
PREINSU
POSTL
V-LED
LOWER
R149
270K
R150
47K
R151
10K
R152
10K
C90
220N
C91
10U
16V
V+
1
I
2
I
/
P
3
T
/
C
4
D
1
2
5
D
1
1
6
D
1
0
7
D
9
8
D
8
1
0
D
7
1
1
D
6
1
2
D
5
1
3
D
4
1
4
D
3
1
5
D
2
1
6
D
1
1
7
0
V
9
D
O
T
1
8
IC31
BA683A
PR7
500R
V-LED
V-LED
V-LED
-21dB
ADJ
CAL
R143
3K6
R147
22K
R148
2K2
PR6
5K
MON17
MON18
MON19
V-LED
DIN41612
32A 32B
31A 31B
30A 30B
29A 29B
28A 28B
27A 27B
26A 26B
25A 25B
24A 24B
23A 23B
22A 22B
21A 21B
20A 20B
19A 19B
18A 18B
17A 17B
16A 16B
15A 15B
14A 14B
13A 13B
12A 12B
11A 11B
10A 10B
9A 9B
8A 8B
7A 7B
6A 6B
5A 5B
4A 4B
3A 3B
2A
1A 1B
2B
CON1
DIN64ROT
12
34
56
78
910
1112
1314
1516
1718
1920
2122
2324
2526
2728
2930
3132
3334
3536
3738
3940
4142
4344
4546
4748
4950
CON2
50WAY
IDCMH
-18V
+18V
MWKGROUND
GND
-18V
+18V
GND
MWKGROUND
-18V
+18V
GND
LED3
R168
100K
LISTEN
R166
22K
SW20
2PSUJ
LED44
YEL
V+
D28
5V1
R176
33R
R177
0R
C100
10N
VSS
V+LED
V-LED
V-
V+
GND
MWKGROUND
V+LED
V+
VSS
V-LED
V-
RESET
BUS1
BUS4
BUS5
BUS8
LMIX
SOLO_R
BUS9
BUS11
BUS13
BUS15
BUS1C2
BUS5C6
IPSOLOEN
R175
1K
OPSOLOEN
FLASH
BUSREF
BUS2
BUS3
BUS6
BUS7
RMIX
MIXREF
SOLO_L
BUS10
BUS12
BUS14
BUS16
BUS3C4
BUS7C8
12
34
56
78
910
CON3
10WAY
IDCMH
TBACK
MON16
MON12
MON11
MON10 EXTL+
MONL+
MONU+
EXTU+
MON20
MON1
MON2
MON3
MON4
MON5
MON6
MON7
MON8
MON9
MON13
MON14
MON15
EXTL-
EXTU-
MONL-
MONU-
1 2
LK9
1 2
LK10
1 2
LK11
POSTINSL
PREL
PREINSL
LAST IC
LAST R
LAST C
LAST TR
LAST D
LAST SW
LAST CON
LAST LK
LAST VR
LAST LED
R218
D65
SW20
CON16
LK15
LED44
IC35
C111
TR9
VR5
R1211KR122
10K
C82
33P
1
2
3
VR4
10KB
ALPSCD
R120
1K
R118
10K
V-
R126
2K2
R127
2K2
C84
22U
25V
C85
22U
25V
D29
12V
D30
12V
R123
10K
V+
V-
V3+
V3-
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