Image System Trouble - Sony BRC-300 Service Manual

4-4-2. Image System Trouble

c-3. The power indicator lights, but no image is output from the VIDEO OUT or S VIDEO OUT
connector.
c-3
Is +3.3 V (A)
and +3.3 V (D) power
supplied to IC3018 on
the MC board ?
Yes
Is the 27 MHz
clock input to
pin 46 of IC3018 on
the MC board ?
Yes
Is the pin 44 level
of IC3018 set to "L"
on the MC board ?
Yes
MC board failure
(IC3018 or the peripheral
circuit)
Replace the defective
parts or the MC board.
BRC-300/300P
BRU-300/300P
MC board failure
No
(L3001, L3002, L3004,
and the peripheral circuit)
Replace the defective
parts or the MC board.
MC board failure
(IC4404 to IC4406, R3002,
No
R3014, R4440, or the
peripheral circuit)
Replace the defective
parts or the MC board.
MC board failure
No (IC3008 or the peripheral
circuit)
Replace the defective
parts or the MC board.
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