JVC P-100EUC - Page 3

Servicing in the Field
Cleaning the Cabinet
Clean the external appearance of Cabinet body when nece-
ssary, with a clean soft cloth with mild soap. Don’t use any
solution which contains benzine or petroleum.
Raster Centering
The centering device is 2 magnetic rings located on yoke
rear cover. By alternately rotaing those 2 magnetic rings,
the picture can be properly centered on the screen.
Deflection Yoke Adjustments
If the lines of the raster are not horizontal or corner
shadows appear, loose the yoke clamp screw and rotate
deflection yoke, push yoke snug up against bell of picture
tube.
Vertical Height and Vertical Linearity Adjustments
When the upper or lower part of picture extends or shrinks,
adjust the vertical height and vertical linearity controls
alternately to fill the screen % inch beyond the mask until
the picture on test pattern is symmetrical from top to
bottom. The height control extends (or shrinks) mainly a
lower part of raster, and the linearity control an upper
part.
AGC Adjustment
Adjust the AGC control when picture is a very slight bend
as it’s top, or excessive snow.
AGC may be adjusted by tuning the control fully counter-
clockwise when there is a very slight bend, and clockwise
when snow.
Disassembly Instructions
1. Front Panel Removal
1. Pull out TV tuning and Radio Tuning Knobs, and
a power off-volume knob.
2. Unscrew 3 screws indicated in Fig. 1 and Fig. 2 and
pull the front panel forward.
Front Panel
Fig. 1
P-100EUC
Front Panel
2. Bottom Board Removal
1. Remove the front panel as reference to ‘‘Front Panel
Removal”.
2. After removing the battery case, unscrew 2 screws
indicated in Fig. 3.
Bottom Board
Fig. 3
3. Top Panel Removal
1. After removing the battery case, unscrew 4 screws
indicated in Fig. 1, Fig. 2 and Fig. 3. (But there is no
need to unscrew a screw fastened the metal fitting
indicated in Fig. 2).
2. Position the rod antenna vertically and pull the top
panel upward along the rod antenna.
Top Panel
Fig. 4
No. 3308