Denon DVP-602CI Service Manual page 13

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, "ENTER" and "SETUP", turn on Power switch.
Then, press "ENTER" button to display the following information on the FL Display.
2. Display Order
Error information → Destination information and Serial No. → Main-µcom version information → Sub-µcom version infor-
mation
→ DSP version information
3. Display
Any one of the following list is displayed, in the priority of
Condition
q No response from Sub-µcom
Sub-µcom NG
w No response from DIR
DIR NG
When DSP boot, executing DSP reset makes no change to BUSY port "L".
No change to BUSY port "L" 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".
e DSP 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
BUSY port "L".
No change to BUSY port "L" before issuing DSP special read command.
No change to BUSY port "L" before DSP version read.
r
Both SUB/DSP
OK
qwer ..
State
13
DVP-602CI
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)