JVC AV-29FH1BUG Service Manual page 10

4.4.4 SCREEN ADJUSTMENT
Measuring
Item
instrument
SCREEN Signal
adjustment generator
Remote
control unit
4.4.5 WHITE BALANCE ADJUSTMENT
Measuring
Item
instrument
WHITE Signal
BALANCE generator
adjustment
Remote
control unit
4.4.6 DEFLECTION CIRCUIT ADJUSTMENT
Measuring
Item
instrument
VERTICAL Signal
GEOMETORY generator
adjustment
Remote
control unit
HORIZONTAL Signal
POSITION generator
adjustment
Remote
control unit
1-10 (No.YA008)
Test point Adjustment part
G2-SCREEN
SCREEN VR
[On FBT]
Test point Adjustment part
RED BIAS
GRN BIAS
RED GAIN
GRN GAIN
BLUE GAIN
Test point Adjustment part
V. LINEAR
S CORRECT
VERT SIZE
VERT CENT
HOR CEN
Description
(1) Receive a colour bar pattern signal.
(2) Select < G2-SCREEN >.
(3) Adjust the SCREEN VR on the FBT to bring the
cursor to central position.
Description
(1) Receive a black and white pattern signal (colour off).
(2) Select < RED BIAS >, < GRN BIAS > and adjust the
screen until the black portion in the screen becomes
black.
(3) Select < RED GAIN >, < GRN GAIN >, < BLUE GAIN >
and adjust the screen until the white portion in the
screen become white.
Description
(1) Receive a circle pattern signal.
(2) Select < V. LINEAR >(Veretical linearity), < S
CORRECT > (S correction), < VERT SIZE >(Vertical
size), < VERT CENT >(Vertical center) respectively.
(3) Adjust to compensate for vertical distortion.
(1) Receive a circle pattern signal.
(2) Select < HOR CEN >(Horizontal center).
(3) Adjust to have the picture in the center of the screen.