EasyManua.ls Logo

AMSTRAD GT65 - Alignment Checks; Adjustment and Checking Procedures; Test Point List

Default Icon
31 pages
Save Page as PDF
Print Icon
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Loading...
The
data
contained
in
the
following
4
pages
is
for
information
only.
Service
Agents
must
not
carry
out
any
repair
or
adjustment
to
the
Drive
mechanism
and
its
associated
PCB
30001
during
warranty.
Fauity
mechanism
must
be
returned
to
AMSTRAD
for
exchange.
Alignment
Checks
Please
use
this
this
information
in
conjunction
with
the
diagnostic
flow
chart.
Equipment
required:
Double
Beam
Scope;
EME
- CF2 Test
Disk
(please
refer
to
disk
notes
for
usage).
The
following
checks
can
be
carried
out
in
routine
servicing. If
the
wave
patterns
do
not
appear
this
confirms
a
fault
with
the
mechanism.
Before
attempting
any
replacement
check
these
waveforms
thoroughly.
Content
of
adjustment
and
checking
CE
DISK
EME CF2
1.
Rc:dial
adjustment
by
use
of
Track
19
(Fig.
1).
0
2.
Adjustment
of
the
index
burst
by
use
of
Track
39
(Fig.
2).
0
3.
Azimuth
check
by
use
of
Track
39
(Fig. 3-4).
0
List
of
Test
Points
Test
point
Name
of
signal
TP 1 Read
signal
of
filter
outlet
TP 2 Read
signal
of
filter
outlet
TP 3
Signal
ground
TP 5 TROO
sensor
output
TP 9
Index
signal
TP
11
Signal
ground
2ms 2ms
....
'U.5
BLOCK
2
BLOCK
3
BLOCK
49
i
i
i
i
I
I
ms
,....
,....
,....
-
,....
2F
1F
1F
"
.....
~
....
-
....
~
i4-500fJs
........
....
-
-
300fJs
500fJs
200ms
(TOTAL
49
BLOCKS)
12
INDEX
Fig.1
Waveform
of
T19
(Servp
pattern)
INDEX

Table of Contents

Related product manuals