Error Display - Denon AVR-E400 Service Manual

1.3. Error display

See the following table for each "Error information" display and its explanation (status).
Display order is q , w , e , r , t .
Condition
Compared with the destination setting
on the board. This is displayed when the
q
Firm Check model name or destination information
NG written into the firmware does not match.
( b )
w
No response from DIR.
DIR NG
When DSP code boot is performed, the
DSP FLAG0 port does not change to "H"
even if DSP reset is executed.
Before DSP command is issued, the DSP
BUSY port does not change to "L".
When DSP data read is performed,
executing WRITE="L" does not result in
ACK="H".
e
When DSP data read is performed,
DSP NG
executing REQ="L" does not result in
ACK="L".
When DSP data writing is performed,
executing WRITE="H" does not result in
ACK="H".
When DSP data writing is performed,
executing REQ="L" does not result in
ACK="L".
An error occurred in testing writing data
between IP SCALER and DRR.
r
IP SCALER
Testing writing data between IP SCALER
NG
and DRR resulted in no response.
Error occurs in EEPROM checksum.(*** is
t
EEPROM NG a block address number.)
b
The written Firmware and product settings
(model name, brand name, destination)
are compared. If Firmware that is not
designed for this product is written, d or f
is displayed in the first column, as shown
on the right.
Status
I P
I P
Status
FL Display
F I R M 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
S C A L E R
S C A L E R
E 2 P R O M E R R * * *
FL Display
M a i n : * * * * * * * *
D S P
A u d i o P L D : * * . * *
G U I : * * * * * * * *
G U I : * * * * * * * *
26
Trouble shooting
• Please check the
destination-resistors
(R3017/R3018, HDMI
B'D).
• Please write the
firmware of correct
destination.
• Please check
DIR(U2203, HDMI B'D)
0 1
and around circuits.
0 1
0 2
0 3
• Please check
DSP(U2001, HDMI
B'D) and around
0 4
circuits.
0 5
0 6
•Please check IP
E R R 0 1
SCALER (U1601,
HDMI B'D) and
DDR2(U1801/1802)
E R R 0 2
and around circuits.
: * * . * *