Error Display - Denon DRA-800H Service Manual

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
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 information does not match.
q
Firm Check
" ▲ " is not displayed if firmware information is correct.
Error
w
This error is displayed if there is no response from the DIR.
DIR Error
Boot error 1 (After reset the DSP, DSP_Flag0 port is "Low")
Boot error 2 (After reset the DSP, DSP initialization is not completed)
(Unused)
Command error 1 (After sending the command to the DSP, DSP_Flag0 port is "Low".)
e
Command error 2 (After sending the command to the DSP, MCU received "COMMAND ER-
DSP Error
ROR".)
Command error 3 (After sending the command to the DSP, MCU did not receive "COMMAND
SUCCESS".)
IDL error 1 (Before receiving IDL, "COMMAND BYTE" is not cleared.)
IDL error 2 (MCU received "IDL SERIOUS ERROR".)
SPI communication error
r
Error occurred in BACKUP. it is an error of the check sum.
BACKUP Error
States
103
Display
FIRM ERROR
• Check the resistor for setting the region [R7581, R7582, DIGI-
TAL PCB].
M:*************
• Write the firmware for the correct region.
Main FBL :**.**
DSP :**.**
PIMG Error indication
• Check the circuits around the Logic [IC722] and SFROM
A.PLD :********
[IC723]. If there appear to be no problems, [IC722] or [IC723]
PIMG :********
is faulty.
• Check the DIR [IC761, DIGITAL PCB] and surrounding circuits.
DIR ERROR 01
DSP ERROR 01
DSP ERROR 02
DSP ERROR 03
DSP ERROR 04
• Check the DSP [IC781, DIGITAL PCB] and surrounding cir-
DSP ERROR 05
cuits.
DSP ERROR 06
DSP ERROR 07
DSP ERROR 08
DSP ERROR 09
BACKUP ERROR
TROUBLE SHOOTING