SJ-MD100
– 15 –
NO
YES
NO
YES
NO
YES
4
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
5
3.3V
0V
16.9344MHz
3.3V
–
3.3V
0V
61
65
64
63
62
Is playback
possible?
Is playback sound
OK?
Press eject key
and remove ROM disc.
Can RAM disc
be inserted?
Is UTOC
read and disc data
displayed?
Play track
1 of a previously
recorded MD.
Is playback sound
OK?
Insert
a recordable MD.
Is recording
possible?
Operation complete.
Faulty magnetic head
Faulty magnetic head
Is shape
of magnetic head
OK?
Is there
output from CN8
TP110 and
TP111?
Is output
of IC3 pin 73 OK?
Faulty magnetic
head circuit
Faulty IC3
Is output of
IC3 pins 61 ~ 65 OK
during playback?
10.9344MHz
Faulty audio circuit
Faulty IC3
(To page 10)
After TOC is read,
does traverse move
to UTOC?
Faulty IC1
See "Traverse Operation"
(next page).