Denon avr-s720w, Руководство по обслуживанию

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1.4. Error display
See the table below for descriptions of the displayed errors and countermeasures for these.
If multiple errors occur, only one item is displayed.
The priority order is
w
,
e
,
r
,
q
.
Condition States Display TROUBLE SHOOTING
q
Firm Check
NG
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 infor-
mation does not match.
" ▲ " is displayed as the first character if the firmware
is not correct (see the illustrations on the right).
FIRM ERROR
– Main :********
– DSP :**.**
– Audio PLD:**.**
– GUI :********
• Check the resistor for setting the
region (R7581 / 7582,DIGITAL PCB).
• Write the firmware for the correct
region.
w
DIR NG
This error is displayed if there is no response from the
DIR.
DIR ERROR 01
• Check the DIR (IC772, DIGITAL PCB)
and surrounding circuits.
e
DSP NG
The DSP FLAG0 port does not enter " Hi " status while
booting a DSP code even after resetting DSP.
DSP ERROR 01
• Check the DSP (IC781, DIGITAL PCB)
and surrounding circuits.
The DSP FLAG0 port does not enter " Hi " status before
issuing a DSP command.
DSP ERROR 02
Setting WRITE to " Lo " does not set ACK to " Hi " during
DSP data reading.
DSP ERROR 03
Setting REQ to " Lo " does not set ACK to " Lo " during
DSP data reading.
DSP ERROR 04
Setting WRITE to " Hi " does not set ACK to " Hi " during
DSP data writing.
DSP ERROR 05
Setting REQ to " Lo " does not set ACK to " Lo " during
DSP data writing.
DSP ERROR 06
r
EEPROM NG
An error occurred in a checksum of the EEPROM(*** is
a block address number).
BACKUP ERROR
s
101
Caution in
servicing
Electrical
Mechanical
Repair Information
Updating