Specifications

6–17
Reference Drawings
VOLTAGE REGULATOR
+6V
VDD
VSS
+12V
VCC
R723
1K
DZ701
1N4735
6.2V
R722
100K
R713
100K
D706
1N4148
+12V
R709
1K
R716
10K
D707
1N4148
PI
11
RST
12
Q4
7
Q5
5
Q6
4
Q7
6
Q8
14
Q9
13
Q10
15
Q12
1
Q13
2
Q14
3
PO
9
PO
10
U702
74HC4060
D702
1N4148
D701
1N4148
6
5
7
U701B
TL074
+12V
/CARRIER OFF
C703
.001
Fo=5KHZ BPF; Q=3
/AUTO CARRIER
VDD
5
6
U703C
74HC14
3
4
U703B
74HC14
1
2
U703A
74HC14
R702
10K
R704
10K
R707
180K
C702
.001
R705
91K
R701
4.7K
R703
4.7K
R733
4.7K
CARR SW
2
3
1
4
1
1
U701A
TL074
-12V
PROGRAM DETECT
VDD VDD
R725
100K
COMP2
AUDIO or COMPOSITE
R748
10K
D703
1N6263
R706
5.1K
R711
100K
C701
.01
C704
.001
13
12
U703F
74HC14
11
10
U703E
74HC14
D704
1N626313
12
14
U701D
TL074
R710
75K
1
1
2
3
4
+IN
OSC
GND
-IN
LM3578
U1
+UNREG
0.5
2
4
R715
2.2K
VDD
R720
10K
INPUT FAULT
R708
100K
R714
220
DL701
GREEN
R718
100K
12
34
56
78
910
JP701
HEADER 5X2
D708
1N4148
R717
10K
1
1
2
2
3
3
4
4
8
8
7
7
6
6
5
5
U705
IR2125
1
1
2
2
3
3
4
4
8
8
7
7
6
6
5
5
U704
LM3578
D710
1N4148
R735
51
C714
0.1
R724
100
R734
10K
TIME-OUT
SELECT
MINUTES
P701
8
Q701
IRF540
C723
330
100V
DZ702
1N9661B
16V
R712
1M
C706
1.0
POLY
C712
1.0
R719
10K
C705
1.0
POLY
Q705
MPSA06
DL702
RED
9
10
8
U701C
TL074
R721
24.9K
1
1
2
3
4
6
7
8VB
5
U2
6
7
8V+
5
CS
C
E
IR2125
VCC
IN
ERR
ESS VS
CS
OUT
28V ENABLE
9
8
U703D
74HC14
DRVR V+
+12V
-12V
+12V
R743
220
R739
510
R742
1K
Q704
MJE15028
R741
1K
(+13.5V)
(+12.5V)
DZ703
ICTE-12
DZ704
ICTE-12
C720
220UF
50V
C722
3300UF
16V
L702
960UH
C718
220
63V
C725
220
63V
R740
10
C719
1000
35V
Q702
MPSA06
Q703
MPSA56
C717
1UF
SYNC
ALC
DRVR V+
+UNREG
+12V
(TO POWER REG. BOARD)
R730
2.2K
R750
100
-12V
PAV
PA I
1
2
3
4
5
6
HD704
HEADER 6
L701
380UH
C711
.01
R728
68K
R729
4.12K
1
C713
100PF
R738A
1.0
0.5W
R738A
1.0
0.5W
R737
4.3K
R736
2K
C715
0.1
C724
47
20V
R751
JUMPER
A10124-22
D711
MUR110
D714
1N5822
R732
82.5K
1
/LOCK FAULT
METER UNREG
+12V
-12V
DRVR V+
INPUT FAULT
D715
1N4004
CARR SW
C709
2200PF
POLY
C710
56PF
NPO
123456
HD701
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
2
0
HD702
c 8667-5
38KHZ
COMP2
/CARRIER OFF
/AUTO CARRIER
FAN
L703
960UH
1 2 3
HD703
-12V
NOTES :
_______
_______
1. ALL RESISTORS ARE IN OHMS,
1/4W, 5% UNLESS OTHERWISE SPECIFIED.
2. ALL CAPACITORS ARE IN
MICROFARADS UNLESS OTHERWISE SPECIFIED.
THESE DRAWINGS AND SPECIFICATIONS ARE THE
SHALL NOT BE REPRODUCED, COPIED, OR USED
AS THE BASIS FOR THE MANUFACTURE OR SALE
OF APPARATUS OR DEVICES WITHOUT PERMISSION.
PROPERTY OF CROWN INTERNATIONAL, INC. AND
CROWN INTERNATIONAL, INC.
1718 WEST MISHAWAKA ROAD ELKHART, IN. 46517 PHONE [phone]
DO NOT SCALE PRINT
SUPERSEDES
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ME
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APPROVED BY :DRAWN
CHECKED
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NEXT ASM:FILENAME: 10.SCM
A
103207
8-25-97
MLOWCMO
FM VOLTAGE REGULATOR
Inductor Data
L
Wire
Tu r ns
960uH
165
#26
380uH
#22
80
L701 L702-703
Micrometals T90 core
Remove:
U706
L704
R745
R744
C724
D713
D714 1N5822 to MUR110
Change: R732 100K to 49.9K
(C707)
(R726)
(R708)
(R749)
Add: 1UF/100V between L701 and L703 under board.
Modifications for use
with 12.5V RF driver.
DZ703 1.5KE36A to ICTE-12
C721, C722 3300UF to 220UF/50V
7912 regulator, using "L704" pads.
Jumper "U706" pads 1 and 2.
DZ705
C708
220 Pf
C707
.001
R726
100K
R749
1.5K
D709
OPEN
R727
620
1 2 3 4 5
LM2576–ADJ
U706
R745
10K 1%
D713
1N5822
R744
1.1K 1%
C721
3300UF
16V
L704
960UH