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MDS-102/MD1 TEST MODE
1) Self Check at Power ON
When the power socket is connected and the POWER switch is
turned on, the following message
is displayed to indicate a
failure, if any.
"STA"
: Pin 36 is "high".
Normally it is "low".
"STANDB" : Communication failure to mechanism controller.
2) Key & Display Test Mode
Place the pin 35 in "high" status (pull up) and connect the
power socket (reset the master microcomputer
if the test is
executed with the board only), and the key & display test mode
is activated.
Pull up
pin 35
Connect power socket
All LEDs ON
One segment is turned off by key operation
All keys pressed ?
"END" displa
Calender ON depending on rotating direction
Segment turnd off by key:
key
SEGMENT
POWER
TRACK
EJECT
DATE
DISPLAY
STEP
P. MODE
-SYNC
INPUTSELECT
REC
CLOCK
DISC
EDIT/NO
GUIDE
YES
PLAY MARK
FR
PAUSE MARK
FF
REC MARK
PLAY
DIGITAL IN
STOP
A. SPACE
REC
CLOCK
3) Clock IC Oscillation Adjust Mode
Connect the power socket with the pin 36 in "high" status (pull
up), and 2048Hz is output from pin 8 of clock IC.
4) Test Mode for Set Checking, MO Related
Connect the power socket while pressing the PLAY key, and
the following items can be checked by pressing the associated
key.
Test Items
MDS- 102
CREC
LASER POWER
FF
TRK GAIN
RF MODE
REC MODE
PLAY/PAUSE
PLAY/PAUSE
STOP
STOP
FCS ON
FCS. CLV ON
C PLAY
SERVO OFF
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