JVC TM-1500PS

| TM-1500PS
ADJUSTING STEP OF COLOR TONE
ADJUSTMENT OF PURITY
Wedge
Purity magnet
G cutoff VR
R cutoff VR
B cutoff VR
Screen VR
Detiecting yoke
Traverse one
line [SET UP]
switch
PRIOR TO STARTING ADJUSTMENT:
1.
ADJUSTING STEP
1.
Remove the wedge being inserted in between
the deflecting yoke. At this time, clear the trace
of the wedge.
Peel off the adhesive fixing six magnets with the
tip of screw driver, etc. so that the magnets will
turn freely.
Input the total white signal.
Perform magnetic erasing of the Brown tube with
a magnetic eraser. .
Set the brightness and picture to slightly higher
levels, and perform warm-up roughly for 20 - 30
minutes.
@BCUTOFF y \
@GCUTOFF (wy
@R CUT OFF ¥ >)
By tuming the G CUTOFF VR on the CRT
socket board fully in clockwise direction and the
R and 8 CUTOFF VR fully in counterclockwise
direction, adjust the screen VR to make the
green screen visible.
After loosening the clamp screw of the deflecting
yoke, pull the yoke fully backward, and let color
shading appear in a vertical belt form.
O
CRT socket PCB
O
Align the two purity magnets to
a horizontal level.
Pile up the clicks of the two purity magnets
alternately each other, and set them to a
horizontal position as an initial.
While opening and closing or tuming the clicks
of the two purity magnets, perform adjustment so
that the green vertical belt appears at the center
of the screen.
By pushing out the deflecting yoke to the front
side, position the yoke so that the entire screen
becomes totally green (In this case, tentatively
fix the deflecting yoke with a wedge so that the
yoke is not moved).
Set the traverse one line [SET UP] switch to the
[SET UP] side to display traverse one line on
the screen.
With the deflecting yoke, make the traverse one
line horizontal and further close to the vertical
center
(Do not change the cross position of the
deflecting yoke)
Return the transverse single line [SET UP]
switch to the [NORMAL] side.
Traverse one fine
Vertical center position
(There are two small dents)
Let the traverse one line approach
between both of the white dents denoted
by. >
(No.50343) 17