JVC AV-N29302/S Service Manual page 22

AV-N29302
Measuring
Item
instruments
SUB
BRIGHT
Adjustment
SUB
CONTRAST
Adjustment
SUB COLOR Signal
adjustment generator
Oscilloscope
Remote
control unit
Cy
W W W W
Y
22
Test point Adjustment part
No.1 BRIGHT
No.2 PICTURE
TP-R No.3 COLOR
TP-E(# # # # )
[CRT
SOCKET
PWB]
G
B
(-)
0V
(A)
Mg
(+)
R R R R
1. Receive a broadcast.
2. Select No.1 BRIGHT of the PICTURE MODE.
3. Set the initial setting value of the No.1 BRIGHT with the LEFT
/ RIGHT key of the MENU.
4. If the brightness is not best with the initial setting value, make
fine adjustment of the No.1 BRIGHT until you get the optimum
brightness.
1. Receive a broadcast.
2. Select No.2 PICTURE of the PICTURE MODE.
3. Set the initial setting value of the No.2 PICTURE with the
LEFT / RIGHT key of the MENU.
4. If the contrast is not best with the initial setting value, make
fine adjustment of the No.2 PICTURE until you get the
optimum contrast.
[ Method of adjustment without measuring instrument ]
1. Receive a broadcast.
2. Select "No.3 COLOR" of the PICTURE MODE.
3. Set the initial setting value of the "No.3 COLOR" with the
LEFT/RIGHT key of the MENU.
4. If the color is not the best with the Initial setting value, make fine
adjustment of the "No.3 COLOR" until you get the optimum
color.
[ Method of adjustment using measuring instrument ]
1. Input the full field color bar signal (75% white).
2. Select "No.3 COLOR" to the PICTURE MODE.
3. Set the initial setting value of the "No.3. COLOR" with the
LEFT/RIGHT key of the MENU.
4. Connect the oscilloscope between TP-R and TP-E.
5. Adjust COLOR and bring the value of (A) in the illustration to the
voltage +20V (V
W-R
No. 51834
Description
).