Sharp 25VT-K100 Service Manual page 13

The SHARP TV/VCR COMBINATION have most of the analog setup adjustments eliminated. Coil and variable
resistor adjustments are now performed digitally by using the remote transmitter or set's volume and channel
change function buttons.
Note: There are still a few analog adjustments in the J-series such as 120V adjust, focus, master screen
voltage and coils in the picture if/detector circuit.
Follow the steps below whenever service adjustment is required. See table "B" to determine if service
adjustments are required.
1.Service mode -
Before putting unit into the service mode, check, that
customer adjustments are in the normal mode. use
the reset function in the video adjust menu to ensure
customer controls are in their proper ( reset ) position.
To enter the service mode -
While pressing the Ch-up (S2507) button, Plug the
AC cord into a wall socket. Now the TV set is switched
on and enters the service mode.
When successfully entered, the service mode will be
displayed as shown in Figure A. The "SERVICE
MODE" figure the top line stands for service
adjustment item and data (see Figure A.).
To exit service mode-
Turn off the power or unplug the set.
2. Service item selection
Once in the service mode, press the channel up or
channel down button on the remote transmitter or at
the set.
(Table-A.) . Select the item you wish to adjust.
3.Data number selection
Pess the volume up or down button to adjust the data
number in the upper left hand side of the screen.
PICTURE:16
SERVICE MODE:01
SUB-COLOR=64
13
25VT-K100
25VT-CK10
02
Figure A.