STR-DN1050
23
Flow of Repair (when sound is not outputted) (3/5)
Check that the sound from the coaxial
input is outputted.
Check that “COAX” is displayed on the
fluorescent indicator tube.
Check the following parts and the surrounding
circuit, and exchange the defective parts.
DIGITAL board: IC2105, IC2107
Check the following parts and the surrounding
circuit, and exchange the defective parts.
MAIN board: IC230, IC231
DIGITAL board: IC2107
Check the following parts and the
surrounding circuit, and exchange the
defective parts.
DIGITAL board: IC2104
Check that “OPT” is displayed on the
fluorescent indicator
Check the following parts and the
surrounding circuit, and exchange the
defective parts.
MAIN board: IC421, J401, J402
Check that the sound from the optical
input is outputted.
Check that the sound from the analog
input is outputted, when the sound field
is “A.F.D. AUTO”.
OK
OK
OK
OK
NG
NG NG
NG
NG
– Continued on
page 24 –
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