Sharp 19J-M100 Service Manual page 9

For adjustments of this model, the bus data is convered to various analog signals by the D-A converter
circuit.
Note: There are still a few analog adjustments in this series such as focus and master screen voltage.
Follow the steps below whenever service adjustment is required. See Figure "B" to determine if service adjust-
ments 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
2.Service number selection
Once in the service mode, press the channel up or
channel down button on the remote transmitter or at
the set. the service adjustment number will vary in
increments of one, from "S01" to S19.
Select the item you wish to adjust.
3.Data number selection
Press the volume up or down button to adjust the
data number.
SERVICE ADJUSTMENT NUMBER
To enter the service mode .
While Pressing the Vol-up and Ch- up buttons at
once,plug the AC cord into a wall socket.Now the TV
set is switched on and enters the service mode.
To exit the service mode, shut the television off by
pressing the power button.
DATA NUMBER
S01
55
Figure B.
9
19J-M100/100S/150/20J-M100
CJ19M10/CJ20M10 / 20MJ10
CHANNEL
02
S01 D:00