Marantz NR1605/U1B Service Manual page 22

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1.4. Error display
See the table below for descriptions of displayed errors and countermeasures for these.
Display order is q , w , e , r .
Condition
The model name, brand name and region
information written in the firmware are
compared to the region settings in the
PCB.This error is displayed if the informa-
tion does not match.
q
Firm Check
NG
" ▲ " or " ▼ " is displayed as the first
character if the firmware is not correct (see
right section of table).
w
SUB μ -COM
There is not a reply from SUBμ-COM.
NG
An error occurs in Loopback Test of the
DDR memory to perform at initial setting
of i/p Scaler(ADV8003).
e
IP SCALER NG
In initial setting of i/p Scaler ( ADV8003 ),
there is not the reply of the Loopback Test
result of the DDR memory .
In initial setting of i/p Scaler ( ADV8003 ),
r
GUI Serial
there is not the reply of the Loopback Test
Flash NG
result of the DDR memory .
This error is displayed if there is no re-
t
DIR NG
sponse from the DIR.
The DSP FLAG0 port does not enter "Hi"
status even after executing a DSP reset
during a DSP code boot.
The DSP FLAG0 port does not enter "Hi"
status before issuing a DSP command.
ACK="Hi" does not occur during DSP data
y
reading, even when WRITE="Lo".
DSP NG
ACK="Lo" does not occur during DSP data
reading, even when REQ="Lo".
ACK="Hi" does not occur during DSP data
writing, even when WRITE="Hi".
ACK="Lo" does not occur during DSP data
writing, even when REQ="Lo".
An error occurred in a checksum of the
u
EEPROM NG
EEPROM(*** is a block address number).
States
I P
I P
Display
F I R M
E R R O R
M a i n
: * * * * * * * *
D S P
A u d i o
P L D : * * . * *
G U I
: * * * * * * * *
S U B
E R R O R
S C A L E R
S C A L E R
G U I
V E 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
E 2 P R O M
E R R * * *
22
TROUBLE SHOOTING
• Check the resistor for
setting region(R1428 /
R1431, HDMIPCB).
: * * . * *
• Write the firmware for
the correct region.
• Check the SUB(U1020)
and surrounding cir-
0 1
cuits.
• Check the circuits
around the IP SCALER
E R R
0 1
(U1026, HDMI PCB) and
DDR2 (U1028/1029).
If there appear to be
E R R
0 2
no problems, U1026 or
U1028/1029 is faulty.
• Check the firmware
E R R O R
version.
• Check the DIR (U1040,
HDMI PCB) and sur-
0 1
rounding circuits.
0 1
0 2
• Check the DSP (U1024,
0 3
HDMI PCB) and sur-
rounding circuits.
0 4
0 5
0 6

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