Check With Test Mode - Denon AVR-2309CI Service Manual

CHECK WITH TEST MODE

µcom/DSP Error Display Mode
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):
E3 model
While pressing 2 buttons, "DYN VOL" and "VIDEO SELECT", turn on ON/OFF button.
Then, press "STATUS" button to display the following information on the FL Display.
Display Order
Error information → Destination information → Main-µcom version information → Sub-µcom version information
→ DSP version information
Display
Any one of the following list is displayed, in the priority of ①②③④ .
Condition
① No response from Sub-µcom
Sub-µcom NG
② No response from DIR
DIR NG
When DSP boot, executing DSP reset makes no change to DSP FLAG 0
③
DSP NG
port "H".
No change to DSP FLAG 0 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".
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 FLAG 0 port "H".
No change to DSP FLAG 0 port "H" before issuing DSP special read
command.
No change to DSP FLAG 0 port "H" before DSP version read.
④
Both SUB/DSP OK
E3 model
ON/OFF button
STATUS
State
AVR-2309CI/AVR-889
VIDEO SELECT
DYN VOL
19
Display
" □ ＳＵＢ □□ ＥＲＲＯＲ □０１□ "
" □ ＤＩＲ □□ ＥＲＲＯＲ □０１□ "
" □ ＤＳＰ □□ ＥＲＲＯＲ □０１□ "
" □ ＤＳＰ □□ ＥＲＲＯＲ □０２□ "
" □ ＤＳＰ □□ ＥＲＲＯＲ □０３□ "
" □ ＤＳＰ □□ ＥＲＲＯＲ □０４□ "
" □ ＤＳＰ □□ ＥＲＲＯＲ □０５□ "
" □ ＤＳＰ □□ ＥＲＲＯＲ □０６□ "
" □ ＤＳＰ □□ ＥＲＲＯＲ □１１□ "
" □ ＤＳＰ □□ ＥＲＲＯＲ □１２□ "
" □ ＤＳＰ □□ ＥＲＲＯＲ □１３□ "
(No error display, version display only)
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