Sony STR-DA9000ES Service Manual page 8

STR-DA9000ES
Ver 1.2
DISP BOARD SERVICE POSITION
Note: Please open a front panel on the right hand side of the set front.
ERROR MESSAGES
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
DECODE ERROR
PROTECTOR
PROTECTOR
PROTECTOR
PROTECTOR
PROHIBITED
UNKNOWN SIGNAL
8
check code
01
11
12
13
21
71
72
cause and response
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".
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.
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.
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.
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.
The receiver can't output the sound due to the copyright protection.
The receiver isn't compatible with the format of the input signal.
DISP board
front panel section