JVC AV-29L6SU Service Manual page 26

Measuring
Item
instrument
SUB HUE Signal
generator
Remote
control unit
Signal
generator
Oscilloscope
Remote
control unit
W
Setting item
VOLTAGE (W-M)
COLOUR Signal
DECODER VCO generator
Remote
control unit
V/C V/C AUTO REG AUTO REG
13. SC ADJ 13. SC ADJ
*********** *********** SC DEV: ** SC DEV: **
- + - + OK:STORE OK:STORE
1-26 (No.YA366)
Test point
TP-47B
TP-E
[CRT SOCKET PWB]
Y
G
R
(B)
(-)
0V
C
B
M (+)
Adjustment value
+4V
** **
Within 7~24 adjustment
Get in 0 3
i=EXIT i=EXIT
Adjustment part
[2.V/C] Method of adjustment without measuring instrument
11.HUE
NTSC 3.58 HUE
(1) Input the NTSC 3.58MHz COMPOSITE VIDEO
signal (full field colour bar with 75% white) from the
EXT terminal.
(2) Set the ZOOM mode to REGULAR.
(3) Set the PICTURE mode to STANDARD.
(4) Select 2.V/C from the SERVICE MODE.
(5) Set the initial setting value of < 11. HUE >.
(6) If you cannot get the best hue with the initial setting
value, make fine adjustment until you get the best
hue.
(7) Press the [OK] key to memorize the set value.
NTSC 4.43 HUE
(1) When NTSC 3.58 HUE is set, NTSC 4.43 HUE will
be automatically set at the respective values.
[2.V/C] Method of adjustment using measuring instrument
11.HUE
NTSC 3.58 HUE
(1) Input the NTSC 3.58MHz signal (full field colour bar
with 75% white) from the EXT terminal.
(2) Set the ZOOM mode to REGULAR.
(3) Set the PICTURE mode to STANDARD.
(4) Select 2.V/C from the SERVICE MODE.
(5) Set the initial setting value of < 11. HUE >.
(6) Connect the oscilloscope between TP-47B and TP-E.
(7) Adjust < 11. HUE > and bring the value of (B) in the
illustration into the value shown in the table.
(8) Press the [OK] key to memorize the set value.
NTSC 4.43 HUE
(1) When NTSC 3.58 HUE is set, NTSC 4.43 HUE will
be automatically set.
[2. V/C]
13.SC ADJ
(1) Receive the PAL full field colour bar signal (75% white).
(2) Set the ZOOM mode to REGULAR.
(3) Set the PICTURE mode to STANDARD.
(4) Select 2. V/C from the SERVICE MODE.
(5) Select < 13. SC ADJ >.
(6) Adjust < 13. SC ADJ > so that the value "SC DEV"
indicated below of screen get in 0±3. < 13. SC ADJ >
should be adjusted within 7 to 24.
(7) Press the [OK] key to memorize the set values.
Note :
When the [OK] key is pressed, VCO for colour decoder
will be automatically set at the respective values.
Description