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LD-1100
г
Test
dj.
Step
Mode
Scope
Serve
Point
Adj
Adjustment and Check Details
No.
Range
Loop
Point
No.
[
CONT
22
| SCAN
TRKG | Monitor
| CONT
INSIDE
LIMIT
REV
ол.
VR1
Following
PLAY
mode,
proceed
with
SCAN
Inner
FWD and SCAN REV modes, and adjust VR1
most
so that still mode
is obtained
between lead-in
track
nos. 8 and 10 on the monitor. (no. 9 should be seen
on the screen)
|
23
PLAY
0.2V/div
C/L
TP-7
ΝΕΟΙ
VCO
ADJUSTMENT
Turn trimmer VC1 inside the shield case to obtain
a DC level at TP-7 of 4.0V. Also check that the
frame number is steady.
i
24
STILL
TP-5
8-INCH
OUTSIDE
LIMIT
223,300
TP-6
Search for 223,300.
a
+150
Clip ТР-5
and TP-6
together
with
a shorting
clip, and
connect
а 10 ΚΩ
resistor
between
| ТР-8
TP-5 and TP-8 (thereby turning O3 on).
After turning VR2 fully clockwise, slowly turn
|
back counter clockwise until the position where
TP-3
> VR2
the TP-3 voltage switches from H to L is reached.
Disconnect the resistor between TP-5 and TP-8.
25
PLAY
i TP-5
VR3
12-INCH
DISC
OUTSIDE
LIMIT
#55,555
TP-6
Search for $55,555 and switch to PLAY mode.
Turn VR3 during playback of lead-out no. 10—
2 to switch the TP-3 voltage from L to H.
Switch to SCAN
REV mode and return to around
lead out no. 10. Remove the shorting clip between
TP-5 and TP-6 and return to PLAY mode.
Play no. 19 and check that the reject operation
occurs from 8 to 15 seconds later.
|
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