Arcam Preamp Processor AV8 - Manual (Page 103)

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ISSUE
DRAWING NO.
23425
DRAWING TITLE
Drawn by:
DATE
Filename
ECO No. DESCRIPTION OF CHANGE
J:\Change_Control\ECO_WIP\02_E143 L921 add 2 jumper links\L921_1.2.ddb - Documents\L921C8_1.2_psu.sch
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
L921CT - AV8 audio board power supply regulators
Circuit Diagram
L921C8
AD/subcon 16-Jul-2002
INITIALS
Date Printed 8 9 Sheet of
Notes:
C805
100N 0805
+
C807
470U EL 25V
Vin
I
ADJ
A
Vout
O
IC801 LM317T
+
C808
100U EL
+5V
+15V
Vin
I
ADJ
A
Vout
O
IC802 LM337T
R801
220R 0805
R802
2K4 0805 1%
P18V
AGND
N18V
P21V
AGND
N21V
-15V
AGND
+18V
-18V
+21V
-21V
C806
100N 0805
R803
220R 0805
R804
2K4 0805 1%
+
C809
470U EL 25V
1
2
3
4
5
6
SK801
AMPCT6
R807
390R 0805
C813
100N 0805
C812
C AL YXF 105C 35V 1000UF
+
C815
100U EL
R806
220R 2W CF
+
C810
100U EL
Vin
I
ADJ
A
Vout
O
IC803 LM317T
+15V
0V_SIG
R805
3K3 0805
-15V
-5V
+5V
+
C814
470U EL 25V
-5V
0V_SIG
CHS1
D803
1N4003
D804
1N4003
D802
1N4003
D801
1N4003
D807
1N4003
D806
1N4003
CHS2
CHS2
R808
1K2 0805
R810
0R0 0805
C801A
1000PX4 SM
C801B
1000PX4 SM
C801D
1000PX4 SM
C801C
1000PX4 SM
C802
1N 0805
D805
5V1 400MW
+ C811
10U EL
HS802 TO220HS30REG
HS801 TO220HS30REG
MJT 29/01/02 Production release 1.1 02_E028
WAF 16/7/02 2 JUMPER LINKS ADDED ACROS SK928 & SK929 1.2 02_E143