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5 4 3 2 1
JP-A1
de-emphasis in (as shipped)
DE-EMPHASIS RESISTOR VALUES
1 2
C701 JP-A2 50uS 75uS
1000pF 1% de-emphasis out
D
1 2
R702 18.2K 27.4K D
R703 49.9K 75.0K
R709 18.2K 27.4K
R703
SEE NOTE R710 49.9K 75.0K
R705
C709 10.0K
+15VDC 10pF
(X) L-CH INPUT
C710
+15VDC 10pF +15VDC
1
4
4
2 2 - 1 IN
Left Output Attenuator R701 1 3 6 -
25K, 15T R702 OUT
3 + 2 V+ 7 1 IN
SEE NOTE 4 R704 5 + 3
V- OUT (N) L-CH OUT +
IC701A 10.0K 2
3
8
NE5532 IC701B V+
4 FERRITE BEADS
8
IC704 NE5532 V-
LT1010CH
-15VDC -15VDC -15VDC IC705
C
LT1010CH C
(M) L-CH OUT -
FERRITE BEADS
JP-B1
de-emphasis in (as shipped)
1 2
C702 JP-B2
1000pF 1% de-emphasis out
1 2
R710
SEE NOTE
R712
C711 10.0K
+15VDC 10pF
(Y) R-CH INPUT
C712
+15VDC 10pF +15VDC
1
4
B B
4
2 2 - 1 IN
Right Output Attenuator R708 1 3 6 -
25K, 15T R709 OUT
3 + 2 V+ 7 1 IN
SEE NOTE 4 R711 5 + 3
V- OUT (R) R-CH OUT +
IC702A 10.0K 2
3
8
NE5532 IC702B V+
4 FERRITE BEADS
8
IC707 NE5532 V-
LT1010CH
-15VDC -15VDC -15VDC IC706
LT1010CH
(P) R-CH OUT -
+15VDC FERRITE BEADS
(B) +15VDC
+ C703 + C713 + C715
100/25V C705 C707 1/50V 1/50V
0.1/50V 0.1/50V
(C) GND
+ C704 C706 C708 + C714 + C716
orban
100/25V 0.1/50V 0.1/50V 1/50V 1/50V
(E) -15VDC NOTES: (unless otherwise specified)
A A
-15VDC 1. All resistors are 1/8W, 1%, MF 1525 Alvarado Street, San Leandro, CA 94577 USA
2. All capacitors are in microfarads tel: 510-351-3500 fax: 510-351-0500
www.orban.com ftp.orban.com
(A) CHASSIS
drawn by: mwa
Title
De-emphasis circuit
Size Document Number Rev
B 8101B #7 CARD 01
Date: Wednesday, April 14, 2004 Sheet 1 of 1
5 4 3 2 1
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