Check With Test Mode - Denon AVR-2809CI Service Manual

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
①
Sub-µcom
No response from Sub-µcom
NG
② No response from DIR
DIR NG
When DSP boot, executing DSP reset makes no change to DSP FLAG0 port "H". " □ ＤＳＰ1 □ ＥＲＲＯＲ □０１□ "
No change to DSP FLAG0 port "H" before issuing DSP command.
When DSP data read, executing WRITE="L" makes no change to ACK="H".
When DSP data read, executing REQ="L" makes no change to ACK="L".
When DSP data write, executing WRITE="H" makes no change to ACK="H".
③
DSP1 NG
When DSP data write, executing REQ="L" makes no change to ACK="L".
When DSP special code boot, executing DSP reset makes no change to DSP
FLAG0 port "H".
No change to DSP FLAG0 port "H" before issuing DSP special read command.
No change to DSP FLAG0 port "H" before DSP version read.
When DSP boot, executing DSP reset makes no change to DSP FLAG0
port "H".
No change to DSP FLAG0 port "L" before issuing DSP command.
When DSP data read, executing WRITE="L" makes no change to ACK="H".
When DSP data read, executing REQ="L" makes no change to ACK="L".
④ When DSP data write, executing WRITE="H" makes no change to ACK="H".
DSP2 NG
When DSP data write, executing REQ="L" makes no change to ACK="L".
When DSP special code boot, executing DSP reset makes no change to DSP
FLAG0 port "H".
No change to DSP FLAG0 port "H" before issuing DSP special read command.
No change to DSP FLAG0 port "H" before DSP version read.
⑤
Both SUB/DSP
OK
State
AVR-2809CI / AVR-2809 / AVR-989 / AVC-2809
RETURN STATUS
on/off button
23
Display
" □ ＳＵＢ □□ ＥＲＲＯＲ □０１□ "
" □ ＤＩＲ □□ ＥＲＲＯＲ □０１□ "
" □ ＤＳＰ1 □ ＥＲＲＯＲ □０２□ "
" □ ＤＳＰ1 □ ＥＲＲＯＲ □０３□ "
" □ ＤＳＰ1 □ ＥＲＲＯＲ □０４□ "
" □ ＤＳＰ1 □ ＥＲＲＯＲ □０５□ "
" □ ＤＳＰ1 □ ＥＲＲＯＲ □０６□ "
" □ ＤＳＰ1 □ ＥＲＲＯＲ □１１□ "
" □ ＤＳＰ1 □ ＥＲＲＯＲ □１２□ "
" □ ＤＳＰ1 □ ＥＲＲＯＲ □１３□ "
" □ ＤＳＰ2 □ ＥＲＲＯＲ □０１□ "
" □ ＤＳＰ2 □ ＥＲＲＯＲ □０２□ "
" □ ＤＳＰ2 □ ＥＲＲＯＲ □０３□ "
" □ ＤＳＰ2 □ ＥＲＲＯＲ □０４□ "
" □ ＤＳＰ2 □ ＥＲＲＯＲ □０５□ "
" □ ＤＳＰ2 □ ＥＲＲＯＲ □０６□ "
" □ ＤＳＰ2 □ ＥＲＲＯＲ □１１□ "
" □ ＤＳＰ2 □ ＥＲＲＯＲ □１２□ "
" □ ＤＳＰ2 □ ＥＲＲＯＲ □１３□ "
(No error display, version display only)