Radial
tracking
path
1)-Radial
tracking
0.k.?
No
OTD
(testpoint
67)
activity.
Radial
tracking
2)-Check
driver
7060A.
Supply:
C2071,C2074.
Components:
C2067,C2068,C2069,R3068,R3069,R3070,R3071,R3072,R3073.
Y
3)-Check
connections
radial
actuator.
Switch
power
off.
N
Measure
impedance
of
18
Ohm(+/-20%)
between
pin
1
and
pin
4
of
connector
1052.
Eye
pattern
Driver
7060A
0.k.?
0.k.?
4)-Check
impedance
on
flex.
Power
off.
Y
Disconnect
CDN-flex.
Measure
impedance
of
18
Ohm(+/-20%)
between
pin
1
and
pin
4
of
connector
1052.
Check
Check
lightpath
decoder
5)-Test
sledge.
Connections
radial
motor
Impedance
of
flex
Power
on.
o.k.?
Invoke
service
mode
0.
Move
sledge
out
(whith
search
forward
key).
Sledge
moves
to
init
position
after
releasing
key.
Replace
Not
o.k.
if
sledge
doesn’t
move,doesn’t
reach
the
outer
position
or
makes
a
ratling
CDM
Invoke
service
noise
at
the
inner
side.
mode
0
6)-Check
driver
7061B.
Supply:
C2060,C2064.
Components:
C2062,C2063,C2066,R3060,R3062,R3064,R3065,R3066,R3067.
7)-Check
connections
of
sledge
drive.
Power
off.
Measure
impedance
of
11
Ohm(+/-20%)
between
pin
5
and
pin
6
of
connector
1070.
Y
8)-Check
sledge
motor.
Dri
Remove
CDM.
checs
1c70618
Measure
impedance
of
11
Ohm(+/-20%)
between
motor
terminals.
lightpath
o.k.?
Y
Repair
Replace
CDM
connection
N
sledge
0.k.?
Impedance
sledge
motor
0.k.?
bg
Y
Replace
IC7000
Job
done
Replace
Repair
bad
CDM
connection
PCS
60
681
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