Pioneer Elite PRO-R06U Manual de formación - Página 45
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No sound from the speakers
No sound from the speakers
Yes
Is sound muting set?
No
Is the volume set to "0"?
No
Is it the only TV sound that
doesn't come out?
Yes
Is a signal input to IC4401?
(pin 1), (pin 3)
Yes
Is a signal input to IC4402?
(pin 7)
Yes
Is a signal output from
IC4402?
(pin 22), (pin 23)
Yes
Is a signal input to IC4801?
(pin 19), (pin 20)
Yes
Is a signal output from
IC4801?
(pin 35), (pin 36)
Yes
Is a signal output from
CN4005?
(pin 35), (pin36)
Yes
Has the signal come to
CN7201?
(pin 13), (pin20)
Yes
Has the symptom been
settled when the system
cable is replaced?
Yes
Finishing troubleshooting
Cancel muting then check
Yes
again.
Yes
Raise the volume then
check again.
No
Check the communications
around the FE (U4401 or
No
U4402) and between the
FE (U4401 or U4402) and
the microcomputer.
Check around IC4402 and
No
check the communications
between IC4402 and
the FE.
Check the communications
No
around the IC4402 and
between the IC4402 and the
microcmputer.
No
Check the communication
between IC4402 and IC4801.
Check around IC4801 and
No
check the communications
between IC4801 and the
microcomputer.
Check the communication
No
between CN4005 and
CN1402.
Check the communication
No
between CN7201 and
IC4801.
No
The panel is defective.
Is it only the FRONT
No
input sound that doesn't
come out?
Yes
Is the flexible cable between
CN4001 and CN7804
connected normal?
Yes
Is a signal input to IC4801?
(pin 25), (pin 26)
Is it only HDMI sound that
doesn't come out?
Yes
Is a signal output from
IC6405?
(pin 7), (pin 8)
Yes
Is a signal input to IC4801?
(pin 10), (pin 11)
Yes
Is it the only input REAR
input analog sound that
doesn't come out?
Yes
Is a signals input to IC4801?
Yes
45
No
Connect Flexible cable,
then check again.
No
Check around IC6405 and
No
check the communication
between IC6405 and the
microcomputer.
Check the communication
No
between IC6405 and
IC4801.
Check the communication
No
between the jack and
IC4801.