Specifications
1 2 3 4 5 6 7 8 9 10 11 12
A
B
C
D
E
F
G
H
121110987654321
H
G
F
E
D
C
B
A
DWG. NO. REV.
1
201207-SCH
E . C . N. REV DESCRIPTION
APPROVALS
PECHK CMDATE DWN
REVISION HISTORY
65
THESE DRAWINGS AND SPECIFICATIONS ARE THE
PROPERTY OF INTERNATIONAL RADIO AND ELECTRONICS CORP.
AND SHALL NOT BE REPRODUCED, COPIED OR USED AS
THE BASIS FOR THE MANUFACTURE OR SALE OF APPARATUS OR
DEVICES WITHOUT PERMISSION.
1 1SHEET OF
SCALE : NONE
PROJ NO.
FILENAME:
DWG . NO .
REV
1
201207-SCH
TITLE:
SCH, FM/IBOC MOTHER BOARD
UNCONTROLLED
UNLESS OTHERWISE MARKED IN RED INK BY CM AS A
CONTROLLED COPY, COPIES OF THESE DOCUMENTS
INCLUDING ASSOCIATED ELECTRONIC REPRODUCTIONS
ARE FOR REFERENCE ONLY.
APPROVALS
DWN
CHK
CM
PE
DISTRIBUTION
K
SIZE
D
Error : logo3A.jpg file not found.
INTERNATIONAL RADIO AND ELECTRONICS CORP.
25166 LEER DRIVE ELKHART, IN. 46514
574-262-8900
WWW.IREC1.COM
IREC
1 FOR PROTOTYPE 02-05-05 DW DW
1
9
2
10
3
11
4
12
5
13
6
14
7
15
8
J4
DB15
C17
.01
C18
.01
C19
.01
C20
.01
C21
.01
C22
.01
C23
.01
C24
.01
R24 220
C38
OPEN
C39
OPEN
C40
OPEN
R13 390
R14
390
R12 1K
R11 220
R15 100
R16 220
C11
.01
C12
OPEN
C13
.001
C14
.001
C15
.01
C16
.01
C30
.01
C31
.01
C32
.01
C33
.01
C34
.01
C35
.01
C36
.01
1
2
3
HD5
HEADER 3X1
1
2
3
J2
OPEN
C3
220pF
C4
220pF
C5
220pF
C6
220pF
C7
220pF
C8
220pF
C9
220pF
R3
1K
R4
1K
R5
1K
R6
1K
R7
1K
R8
1K
R9
1K
R10
240
1
2
3
4
5
HD6
OPEN
2
3
1
REF. FOR
XLR CON.
HI
LO
GND
SCA
EXT_RTN
EXT_IN
MON_L
MON_R
-12V
+12V
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
HD31
26 HEADER
J5
MCX
J6
MCX
J1
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
RFX OUT
1
2
3
4
5
6
7
8
9
10
11
12
HD42
HEADER 12
1
2
3
4
5
6
7
8
9
10
11
12
HD44
HEADER 12
J2J4
1
2
3
4
5
6
7
8
9
10
11
12
+5.00V
D1
1N4148
1
2
3
4
5
6
7
8
9
10
HD41
HEADER 5 x 2
J1
V+
TEMP
GND
R27
1K
R28 1K
R29
1K
1
2
3
4
5
6
7
8
9
10
HD4
HEADER 5 x 2
1
2
3
4
5
6
7
8
9
10
11
12
HD21
HEADER 12
1
2
3
4
5
6
7
8
9
10
11
12
HD22
HEADER 12
+5.00V
LEFT
RIGHT
R IN2
R IN1
L IN2
L IN1
LPIN L
LPOUT L
LPIN R
LPOUT R
+12V
-12V
L VU
+5.00V
PROC A
PROC B
PROC C
R VU
BR GR
HI GR
1
2
3
4
5
6
7
8
9
10
11
12
ALC / METERING
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
HD3
HEADER 10 x 2
+12V
1
2
3
4
5
6
7
8
9
10
+12V
-12V
C41
.001
C42
.001
C43
.001
RF EXCITER
C10
.01
R26
1K
TP1
VOLTMETER
1
2
3
4
5
6
HD2
HEADER 6X1 .156
+12V
1
2
HD7
HEADER 2 .156
C25
.01
C26
.01
C27
.01
R25
OPEN
Q1
IRF541
R4A
300
R3A
300
Z8
OPEN
Z7
OPEN
1
2
3
J1
XLR
C1
220pF
C2
220pF
R1
1K
R2
1K
R2A
300
R1A
300
Z3
OPEN
Z5
OPEN
Z4 OPEN
Z6 OPEN
Z1
JUMPER
Z2
JUMPER
J1
1
2
3
4
5
6
7
8
9
10
11
12
STEREO GENERATOR
J2
1
2
3
4
5
6
7
8
9
10
11
12 1
2
3
4
5
6
7
8
9
10
HD23
HEADER 5 x 2
J3
1
2
3
4
5
6
7
8
9
10
+12V
-12V
SCA IN
EXT RTN
EXT IN
/EXT ENABLE
COMP OUT
RIGHT
LEFT
MON R
MON L
LPIN L
LPOUT L
LPIN R
LPOUT R
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
HD11
HEADER 10 x 2
J1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
AUDIO PROCESSOR
1
2
3
4
5
6
7
8
9
10
HD12
HEADER 5 x 2
J2
1
2
3
4
5
6
7
8
9
10
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
HD13
HEADER 13 x 2
J3
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
+12V
-12V
/+6DB
/+12DB
+5.00V
COMP METERCOMP METER
COMP METERCOMP METER
STEREO/MON
STEREO/MON
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
HD61
HEADER 10 x 2
ALC
ALC
ALC
ALC
ALC
FAN
TP2
+12V
+12V
TP3
-12V
+12V
TP4
+12V
+5.00V
TP5
GND
2
3
1
U1A
TL072
C48
1.0
+12V
C49
1.0
-12V
R33
24.9K
1%
R34 24.9K 1%
R36
24.9K
1%
R35
24.9K
1%
Z11
OPEN
EXT RTN
Z10
OPEN
R37
3.9K
5
6
7
U1B
TL072
R32
1K
EXT IN
R41 1K
Z14
OPEN
SCA IN
D2
1N4148
D3
1N4148
R38
4.02K
1%
R39
100
R40
100
Z12
OPEN
Z13
OPEN
COMP METER
COMP OUT
COMP OUT
STEREO GENERATOR SHUNT
NC
1
Vin
2
TEMP
3
GND
4
TRM
5
Vout
6
NC
7
NC
8
U2
REF02
+12V
C54
1.0
2
3
1
U3A
TL072
C50
1.0
+12V
C51
1.0
-12V
5
6
7
U3B
TL072
R43
100
C52
.01
R42
4.7K
C54
1.0
Z9
OPEN
+5.00V
AUDIO PROCESSOR SHUNT
_METER PAV
_METER PAI
_METER RFW
_METER PA TEMP
_METER BATT
_FAULT SUM
_/AUTO CAR. OFF
_/CARRIER OFF
_FSK IN
_ALC
_COMPOSITE OUT
_38 KHZ OUT
_/EXT ENABLE
L IN1
L IN2
R IN1
R IN2
R IN1
L IN2
JMP1 OPEN
JMP2 OPEN
R23 220
R22 220
R21 220
R20 220
R19 220
R18 220
R17 220
FAULT SUM
FAULT SUM
METER BATT
METER BATT
METER PATEMP
METER PATEMP
METER RFW
METER RFW
METER PAI
METER PAI
METER PAV
METER PAV
ALC
FSK IN
FSK IN
FSK IN
NC
NC
NC
NC
NC
NC
PAI
PAV
/LOCK FAULT
C28
.001
C29
.001
DC SUPPLY
TEMP
TEMP
INPUT
INPUT
FAN-
+12V
FAN
V-METER
RFV
RF FWD
RF REV
/LOCK
/LOCK
/LOCK
NC
NC
NC
38KHZ38KHZ
NC
NC
NC
NC
NC
NOTES:
UNLESS OTHERWISE SPECIFIED:
1. ALL RESISTORS ARE IN OHMS, 1/4W, 5% TOL.
2. ALL CAPACITORS ARE IN MICROFARADS.
DW 11-23-04
DW 11-23-04
/EXT ENABLE
/EXT ENABLE
COMP METER
INPUT CONFIGURATION CHART
NON-OMNIA BOARD INPUT IMPEDENCE
Z1, Z2 ON
Z3, Z5, Z7, Z8 OFF
Z4, Z6 OFF
50 KOHM
Z1, Z2 ON
Z3, Z5, Z7, Z8 ON
Z4, Z6 OFF
600 OHM
OMNIA BOARD AES/EBU INPUT
Z1, Z2 OFF
Z3, Z5, Z7, Z8 OFF
Z4, Z6 ON
ANALOG LEFT/RIGHT
LEFT IN 1 LEFT IN 2
Z32
OPEN
Z33
OPEN
Z31
OPEN
ADD FOR M2HD-S
MOTHERBOARD ONLY
INSTALLED WHEN USING
AUDIO PROC. SHUNT CKT.
Z15 OPEN
Z16 OPEN
Z17 OPEN
Z18 OPEN
Z19 OPEN
Z20 OPEN
Z21 OPEN
Z22 OPEN
Z23
JUMPER
Z24
JUMPER
Z25
JUMPER
Z26
JUMPER
Z27
JUMPER
Z28
JUMPER
Z29
JUMPER
Z30
JUMPER
6 - 13
Reference Drawings