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SCHEMATIC DIAGRAMS (3/9)
1
2
Q Q
3 7 6 3 1 5 1 5 0
A
A
T E
L
1 3 9 4 2 2 9 6 5 1 3
C
C
w w w
.
3
4
5
4.8V
x
a o
u 1 6 3
y
i
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6
7
8
5.1V
0V
0V
0V
Q
Q
3
7
6
3
1
WARNING:
c o
Parts marked with this symbol
Use ONLY replacemen t parts recommended by the manufacture.
.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
NOTICE
leakage current check or (2) a line to chassis resistance check. If the leakage
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
of the power card is less than 460 kohms, the unit is defective.
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
WARNING:
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
DO NOT return the unit to the customer until the problem is located and
corrected.
NOTICE.
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8
9
10
2
4
9
9
8
B
B
0V
0V
5
1
5
0
8
9
2
4
9
4.9V
5.1V
4.9V
5.1V
D
D
5.6V
m
have critical characteristics.
SCHEMATIC DIAGRAMS (3/9)
1U-3350 DSP UNIT (3/3)
AVR-4802/AVC-A11SR
11
2
9
9
A
B
C
D
8
2
9
9
E
F
G
+ B LINE
- B LINE
SIGNAL LINE
H
64
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