4-3
BRC-300/300P
BRU-300/300P
Is
+
5 V supplied
to L1506, L1511,
and
_
5 V to L1512
on the SY board ?
Is
+
12 V output
from pins 6, 7 of Q1507
on the SY board ?
No
Yes
SY board failure
Replace the SY board.
No
Yes
Is
+
1.5 V supplied
to L1507, and
+
3.3 V
to L1508 on the
SY board ?
Yes
No
Is
+
12 V output
from pins 6, 7 of Q1503
on the SY board ?
No
Yes
SY board failure
(IC1502 to IC1504, Q1501,
Q1508, Q1509, Q1512 or
the peripheral circuit)
Replace the defective
parts or the SY board.
SY board failure
(Q1506, Q1507 or the
peripheral circuit)
Replace the defective
parts or the SY board.
SY board failure
(Q1502, Q1503 or the
peripheral circuit)
Replace the defective
parts or the SY board.
SY board failure
(IC1502, Q1510, Q1511
or the peripheral circuit)
Replace the defective
parts or the SY board.
a-2
a-2.
The power indicator lights, but pan/tilt operations are disabled.
