Marantz AV7701, Service Manual

Page: 25 / 266

25
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
,
y
,
u
,
i
.
Condition Status FL Display Trouble shooting
q
Firm Check
NG
Compared with the destination setting
on the board. This is displayed when the
model name or destination information
written into the firmware does not match.
(
b
1)
F I R M E R R O R
• Please check the
destination-resistors
( R2060/R2061, HDMI
B'D).
• Please write the
firmware of correct
destination.
w
GUI Version
NG
Error occurs in GUI version and Main
μ-com version.(
b
2)
G U I V E R . E R R O R
• Please check the
firmware of correct
version.
e
SUB NG
No response from SUB microcomputer.
S U B E R R O R 0 1
• Please check SUB
(IC231) and arroud
circuits.
r
DIR NG
No response from DIR
D I R E R R O R 0 1
• Please check DIR
（ IC403, HDMI B'D)
and around circuits.
t
DSP NG
When DSP code boot is performed, the
DSP FLAG0 port does not change to "H"
even if DSP reset is executed.
D S P E R R O R 0 1
• Please check DSP
（ IC408, HDMI B'D)
and around circuits.
Before DSP command is issued, the DSP
BUSY port does not change to "L".
D S P E R R O R 0 2
When DSP data read is performed,
executing WRITE="L" does not result in
ACK="H".
D S P E R R O R 0 3
When DSP data read is performed,
executing REQ="L" does not result in
ACK="L".
D S P E R R O R 0 4
When DSP data writing is performed,
executing WRITE="H" does not result in
ACK="H".
D S P E R R O R 0 5
When DSP data writing is performed,
executing REQ="L" does not result in
ACK="L".
D S P E R R O R 0 6
y
IP SCALER
NG
An error has occurred in the i/p Scaler
(ADV8003)initial settings. The error is a
DDR memory Loopback Test error.
I P S C A L E R E R R 0 1
• Please check
ADV8003 (IC151) and
arroud circuits.
Testing writing data between IP SCALER
and DRR resulted in no response.
I P S C A L E R E R R 0 2
u
E2PROM NG
Error occurs in E2PROM checksum.(*** is
a block address number.)
E 2 P R O M E R R * * *
i
Both DSP /
EEPROM OK
(No error display, version display only)
Status FL Display
b
1,
b
2
The written Firmware and product settings
(model name, brand name, destination) are
compared. If Firmware that is not designed
for this product is written, ▲ is displayed in
the first column, as shown on the right.
– M a i n : * * . * *
– S U B
: * * . * *
– D S P : * * . * *
– A u d i o
P L D : * * . * *
– G U I : * * * * * * * *