Denon AVR-2808 Service Manual

15
AVR-2808
CHECK WITH TEST MODE
µcom/DSP Error Display Mode
1. Operation Spec
µcom version display mode:
When the following conditions are satisfied at its starting state, error information is displayed before version information.
Starting method (same as µcom version display):
While pressing 2 buttons, "STATUS" and "RETURN", turn on on/off button.
Then, press "STATUS" button to display the following information on the FL Display.
2. Display Order
Error information →Destination information →Main-µcom version information → Sub-µcom version information
→ DSP version information
3. Display
Any one of the following list is displayed, in the priority of ①②③④⑤ .
Condition State Display
①
Sub-µcom
NG
No response from Sub-µcom
" □ ＳＵＢ □□ ＥＲＲＯＲ □０１□ "
② DIR NG
No response from DIR
" □ ＤＩＲ □□ ＥＲＲＯＲ □０１□ "
③ DSP1 NG
When DSP boot, executing DSP reset makes no change to BUSY port "L".
" □ ＤＳＰ1 □ ＥＲＲＯＲ □０１□ "
No change to BUSY port "L" before issuing DSP command.
" □ ＤＳＰ1 □ ＥＲＲＯＲ □０２□ "
When DSP data read, executing WRITE="L" makes no change to ACK="H".
" □ ＤＳＰ1 □ ＥＲＲＯＲ □０３□ "
When DSP data read, executing REQ="L" makes no change to ACK="L".
" □ ＤＳＰ1 □ ＥＲＲＯＲ □０４□ "
When DSP data write, executing WRITE="H" makes no change to
ACK="H".
" □ ＤＳＰ1 □ ＥＲＲＯＲ □０５□ "
When DSP data write, executing REQ="L" makes no change to ACK="L".
" □ ＤＳＰ1 □ ＥＲＲＯＲ □０６□ "
When DSP special code boot, executing DSP reset makes no change to
BUSY port "L".
" □ ＤＳＰ1 □ ＥＲＲＯＲ □１１□ "
No change to BUSY port "L" before issuing DSP special read command.
" □ ＤＳＰ1 □ ＥＲＲＯＲ □１２□ "
No change to BUSY port "L" before DSP version read.
" □ ＤＳＰ1 □ ＥＲＲＯＲ □１３□ "
④ DSP2 NG
When DSP boot, executing DSP reset makes no change to BUSY port "L".
" □ ＤＳＰ2 □ ＥＲＲＯＲ □０１□ "
No change to BUSY port "L" before issuing DSP command.
" □ ＤＳＰ2 □ ＥＲＲＯＲ □０２□ "
When DSP data read, executing WRITE="L" makes no change to ACK="H".
" □ ＤＳＰ2 □ ＥＲＲＯＲ □０３□ "
When DSP data read, executing REQ="L" makes no change to ACK="L".
" □ ＤＳＰ2 □ ＥＲＲＯＲ □０４□ "
When DSP data write, executing WRITE="H" makes no change to ACK="H".
" □ ＤＳＰ2 □ ＥＲＲＯＲ □０５□ "
When DSP data write, executing REQ="L" makes no change to ACK="L".
" □ ＤＳＰ2 □ ＥＲＲＯＲ □０６□ "
When DSP special code boot, executing DSP reset makes no change to
BUSY port "L".
" □ ＤＳＰ2 □ ＥＲＲＯＲ □１１□ "
No change to BUSY port "L" before issuing DSP special read command.
" □ ＤＳＰ2 □ ＥＲＲＯＲ □１２□ "
No change to BUSY port "L" before DSP version read.
" □ ＤＳＰ2 □ ＥＲＲＯＲ □１３□ "
⑤ Both SUB/DSP
OK
(No error display, version display only)
on/off button
RETURN STATUS

Denon AVR-2808 Specifications

General

Brand	Denon
Model	AVR-2808
Category	Receiver
Language	English