18
18
Radial
tracking
path
~~
1)-Radial
tracking
o.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
CDM-flex.
Measure
impedance
of
18
Ohm(+/-20%)
between
pin
1
and
pin
4
of
connector
1052.
Check
Check
lightpath
decoder
5)-Test
sledge.
Impedance
of
flex
Connections
radial
motor
Power
on.
o.k.?
Invoke
service
mode
0.
Move
sledge
out
(whith
search
forward
key).
Repl
Sledge
moves
to
init
position
after
releasing
key.
CDM
Not
o.k.
if
sledge
doesn’t
move,doesn’t
reach
the
outer
position
or
makes
a
ratling
vol
;
noise
at
the
inner
side.
dasbaen
aco
peer
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.
Remove
CDM.
‘Check
Measure
impedance
of
11
Ohm(+/-20%)
between
motor
terminals.
lightpath
Replace
CDM
Impedance
sledge
motor
0.k.?
Y
Y
Replace
1C7000
Job
done
Replace
Repair
bad
CDM
connection
PCS
60
681
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