Sony STR-DA7100ES Service Manual page 6

STR-DA7100ES
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
PROTECTOR
PROHIBITED
UNKNOWN SIGNAL
BUSFULL
LOOP CONNECT
6
check code
01
11
12
13
14
21
71
72
73
74
cause and response
Appears when the signal which the receiver can not decode
(example DTS-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.
Turn off the receiver, check the central core of a speaker cord is
not touching te receiver of other speakers, and turn on again.
DC between speaker terminal is detected (abnormalities 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 cannot output the sound due to the copyright
protection.
The receiver is not compatible with the format of the input signal.
Since the i.LINK bus is busy with other connected component's
output signals, audio signals cannot be connected.
Stop sending output signals from connected components (Turn off
the component or prress the STOP button etc.).
Press i.LINK on the receiver, then select the player again.
i.LINK connection is caught in a loop. Check the connection.