Error Display - Marantz SR7005 Service Manual

1.3. Error display

See the following table for each "Error information" display and its contents (status).
Display order is q , w , e , r , t .
Condition
q Sub-μcom NG No response from Sub-μcom
w DIR NG No response from DIR
When DSP boot, executing DSP reset makes no change to DSP1 FLAG0
port "H".
No change to DSP FLAG0 port "H" before issuing DSP command.
When DSP data read, executing WRITE="L" makes no change to ACK="H".
When DSP data read, executing REQ="L" makes no change to ACK="L".
When DSP data write, executing WRITE="H" makes no change to ACK="H".
e DSP NG
When DSP data write, executing REQ="L" makes no change to ACK="L".
When DSP special code boot, executing DSP reset makes no change to
DSP FLAG0 port "H".
No change to DSP FLAG0 port "H" before issuing DSP special read
command.
No change to DSP FLAG0 port "H" before DSP version read.
r EEPROM NG Error appeared in EEPROM checksum.(*** is a block address number.)
t Both SUB/DSP
/EEPROM OK
State
20
State
S U B E R R O R
D I R E R R O R
D S P E R R O R
D S P E R R O R
D S P E R R O R
D S P E R R O R
D S P E R R O R
D S P E R R O R
D S P E R R O R
D S P E R R O R
D S P E R R O R
E 2 P R O M E R R * * *
(No error display, version display only)
0 1
0 1
0 1
0 2
0 3
0 4
0 5
0 6
1 1
1 2
1 3