STR-DA9000ES - Sony Audio Service Manual (repair manual). Page 8

8

 Please open a front panel on the right hand side of the set front.

DISP board

front panel section

If there is a malfunction, the display shows a code of two numbers and a message. You can check the condition of the system by message.
Refer to the following table to solve the problem.

  messages

check code

cause and response

DECODE ERROR

01

Appears when the signal which the receiver can not decode
(example DSD-CD) is input when “DEC. PRI.” in the CUSTOM
IZE menu is set to “PCM”. Set to “AUTO”.

PROTECTOR

11

Irregular current output to the speakers. Turn off the receiver and
check the speaker connection. Then turn on the power again. Be
comes this display, When short current flowed with breakage of
the power MOS, or when detection resistor becomes open in
connection with it.

PROTECTOR

12

The amplifier section is overheated. Turn off the receiver and
check that the ventilation hole is not covered. Leave the receiver
for a while and turn on the power again.

PROTECTOR

13

The power supply section is overheated. Turn off the receiver and
check that the ventilation hole is not covered. leave the receiver
for a while and turn on the power again.

PROTECTOR

21

DC between speaker terminal is detected (abnomalities such as
DSD 0DATA and signal clip can be considered). Turn off the
receiver and check the speaker connection. Then turn on the power
again.

PROHIBITED

71

The receiver can't output the sound due to the copyright protection.

UNKNOWN SIGNAL

72

The receiver isn't compatible with the format of the input signal.