Kenwood KDC-MP732 Service Manual page 18

KDC-MP732
Displays I2C communication status and CD mechanism
error log
(Display) I2C_
(Display) ERR_1-
"OK" or "NG" is displayed for "
is displayed for "
Displays CD loading error data.
(Display) Load_Error____
(Display) __ (1) xx__ (2) xx (number of times is displayed
Disk detection switch ON/OFF is monitored, and when
the loading operation is not completed within the specified
time length, or when E-99 mechanism error occurred,
record which SW signal had an error.
∗Refer to the note at the end of [CD LOAD error detection].
[AM] Displays CD ejection error data.
key (Display) Eject_Error___
↑
(Display) __ (1) xx__ (2) xx
(Display) __ (3) xx__ (4) xx (number of times is displayed
Disk detection SW ON/OFF is monitored, and when the
ejection operation is not completed within the specified
time length, or when E-99 mechanism error occurred,
↓
record which SW signal had an error.
∗Refer to [CD EJECT error detection]'s note.
[FM]
key Displays CD time code count error data (missing count).
(Display) Count_Lose
(Display) __CDDA_ : xx
(Display) __CDROM : xx (number of times is displayed
Monitor time code continuity. Record the number of times
when discontinuity occurred as error data.
Record the data of compressed audio and CD-DA played
separately.
Displays CD time code count error data (count not updated).
(Display) Count_Stay
(Display) __CDDA_ : xx
(Display) __CDROM : xx (number of times is displayed
When the time code is not renewed for 2 or more seconds,
record the number of times occurred as error data
(skipped sound).
18
TEST MODE
____________
, 2- , 3-
". / "--" or an error code
".
for "xx")
MAX 99 (times)
for "xx")
MAX 99 (times)
for "xx")
MAX 99 (times)
for "xx")
MAX 99 (times)
Initializing AUDIO-related value setting
During STANDBY sourcing, by pressing [
1 second, AUDIO setting values are returned to the default
values.
Flash ROM check (for graphic data)
1. In order to prevent the Flash ROM (4M) equipped models
to be installed with the Mask ROM (2M) panel, and to pre-
vent the Mask ROM (2M) equipped models to be installed
with the Flash ROM (4M) panels, with the STANDBY
sources during the test mode, the following display will be
made according to the system µ-com and panel combina-
tion.
• Flash ROM (4M) equipped model and Flash ROM (4M) panel
All lights turned on – – – OK!
• Mask ROM (2M) equipped model and Mask ROM (2M) panel
All lights turned on – – – OK!
• Flash ROM (4M) equipped model and Mask ROM (2M) panel
"M4P2" – – – NG!
• Mask ROM (2M) equipped model and Flash ROM (4M) panel
"M2P4" – – – NG!
∗ Flash ROM (4M) : KDC-W8534/W8534Y,KDC-X790 (X16
IC1)
Mask ROM (2M) : KDC-MP732,KDC-MP8533 (X16 IC1)
2. When entering the test mode, the manufacture code of the
Flash ROM (4M) is read and when it is normal, FROMCHK
of the 100th terminal (Panel µ-com) repeats Hi → Low →
Hi · · ·. If the reading is abnormal, "Low" is output.
If the manufacture code is normal, by pressing [AM] key for
less than 1 second, the connection checks on all terminal
is started. If the connections are normal, the FROMCHK
terminal stops the Hi → Low → Hi · · · repeating and out-
puts "Hi". If the reading is abnormal, "Low" is output.
3. If the [AM] key is pressed for 2 seconds while all lights are
on, Flash ROM (4M) data is initialized.
While the deletion is executed, "Data_Erase...." is displayed.
Note : Do not touch any key white this is in progress.
When erasing is complete, "Erase_OK!!" is displayed.
If "Erase_NG!!!!!!" is displayed, it was not possible to erase
the data on the Flash ROM (4M).
In this case, pressing [AM] key for at least 1 second again.
If it is the same, then there is an abnormality with the Flash
ROM.
] key for less than