Marantz AV8802/U1B Service Manual page 21

1.4. Error display
If multiple errors occur, only one item is displayed.
The priority order is w , e , r , t , y , u , q .
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
" ▲ " is displayed as the first character if
the firmware is not correct (see right sec-
tion 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 .
When it is different from Version of the
Main CPU which Version of GUI Serial
r
GUI Serial Flash supports . （ADV8003）
Flash NG " ▼ " is displayed as the first character of
the GUI firmware version.
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 *
y
data reading, even when WRITE="Lo".
DSP * NG
( * : 1/2/3/4)
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 1
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 .
G U I : * * * * * * * *
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 * * *
21
TROUBLE SHOOTING
• C heck the resistor for
setting region(R5003,
R5004, R5006, R5007,
R5013, R5014 DIGITAL
: * * . * *
PCB).
• W rite the firmware for
the correct region.
• C heck the SUB(U2101)
and surrounding cir-
0 1
cuits.
• Check the circuits
around the IP SCALER
E R R 0 1
(U2800, DIGITAL PCB)
and DDR2 (U3000/
U3001).
If there appear to be
E R R 0 2
no problems, U2800 or
U3000/U3001 is faulty.
E R R O R
• C heck the firmware ver-
sion.
• C heck the DIR (U1000,
DIGITAL PCB) and sur-
0 1
rounding circuits.
0 1
0 2
• C heck the DSP (U101,
0 3
U201, U301, U401, DIGI-
TAL PCB) and surround-
ing circuits.
0 4
0 5
0 6