Μcom/Dsp Version Display Mode; Operation Specifications; Error Display - Denon AVR-1910 Service Manual

1. µcom/DSP Version display mode

1.1. Operation specifications

µcom/DSP version display mode:
When started up, the version information is displayed.
Starting up:
With the "DIMMER" and "STATUS" buttons pressed, press the "ON/OFF" button to turn the power on.
Now, press the "STATUS" button to the display the 2nd item information on the FL Display.
1.2. Display Order
Destination information → Main-µcom version information → Sub-µcom version information → DSP version information
→ APLD version information
1.3. Error display g
See the following table for each "Error information" display and its contents (status).
Display order is ①②③④ .
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
③
DSP NG
port "H".
No change to DSP FLAG0 port "H" before issuing DSP command.
When DSP data read, executing WRITE="L" makes no change to ACK="H". "□ＤＳＰ□□ＥＲＲＯＲ□０３□ □"
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 FLAG0 port "H".
No change to DSP FLAG0 port "H" before issuing DSP special read com-
mand.
No change to DSP FLAG0 port "H" before DSP version read.
④
Both SUB/DSP
OK
State
18
AVR-1910/1620/1610/790/590
Display
"□ＳＵＢ□ □ＥＲＲＯＲ□０１□□"
"□ＤＩＲ□ □ＥＲＲＯＲ□０１□□"
"□ＤＳＰ□□ＥＲＲＯＲ□０１□ □"
"□ＤＳＰ□□ＥＲＲＯＲ□０２□ □"
"□ＤＳＰ□□ＥＲＲＯＲ□０４□ □"
"□ＤＳＰ□□ＥＲＲＯＲ□０５□ □"
"□ＤＳＰ□□ＥＲＲＯＲ□０６□ □"
"□ＤＳＰ□□ＥＲＲＯＲ□１１□ □"
"□ＤＳＰ□□ＥＲＲＯＲ□１２□ □"
"□ＤＳＰ□□ＥＲＲＯＲ□１３□ □"
(No error display, version display
only)