JVC RM-C1305-1H Service Manual page 19

4.6.4 VIDEO CIRCUIT ADJUSTMENTS
•
The setting (adjustment) using the remote control unit is made on the basis of the initial setting values.
•
The setting values which adjust the screen to the optimum condition can be different from the initial setting values.
•
Do not change the initial setting values of the setting (adjustment) items not listed in "ADJUSTMENT PROCEDURE".
Note :
AV-21V311/B don't have the NTSC system on TV mode.
[SUB MENU 2. VC]
Adjustment item
1. CUT OFF (R/G)
2. DRIVE (R/G/B)
3. BRIGHT (TV/V-1/V-2/V-3)
4. CONT
5. COLOUR
6. TINT (TV/VIDEO)
7. SHARP (TV/VIDEO) [Do not adjust]
8. Y DELAY (TV/VIDEO/S-VIDEO) [Do not adjust]
9. AMP T. SHARP [Do not adjust]
Measuring
Item
instrument
WHITE Signal
generator
BALANCE
(Low light)
adjustment Remote
control unit
REMOTE CONTROL UNIT
H.LINE OFF
1
H.LINE ON
4
R CUTOFF( )
7
R CUTOFF ( )
Variable range
-32 – +31
-32 – +31
-32 – +31
-32 – +31
-32 – +31
-32 – +31
-32 – +31
-8 – +7
-32 – +31
Test point Adjustment part
[2. VC]
1.CUTOFF (R)
1.CUTOFF (G)
SCREEN VR
[In HVT]
V/C PAL
1. CUTOFF (R)
**
(G)
**
50 Hz
MENU : SELECT
MENU - / + : OPERATE DISPLAY : EXIT
2 3
G CUTOFF ( )
5 6
8 9
G CUTOFF ( )
Initial setting value
PAL SECAM NTSC3.58 NTSC4.43 COMPONENT(V-2)
← ←
0/0
← ←
0/0/0
← ←
-18/0/0/+1
← ←
-20
-5 -3 -12
– – -15/+2
← ←
-10/0
-7/0/0 -2/0/0 -7/0/0
← ←
0
Description
Note:
•
Set PICTURE MODE (VSM) to "BRIGHT".
(1) Receive a PAL black and white signal (colour off).
(2) Select 2. VC from the SERVICE MENU.
(3) Select 1. CUTOFF (R) and (G), and set each value to initial
setting value with the [4] and [7] keys, or [5] and [8] keys.
(4) Press the [1] key to produce a single horizontal line.
(5) Turn the SCREEN VR fully counterclockwise, then slowly
turn it clockwise to where a red, blue or green colour is
faintly visible.
(6) Use the [4] and [7] or [5] and [8] keys and adjust the other
2 colours to where the single horizontal line appears
white.
(7) Turn the SCREEN VR to where the single horizontal line
glows faintly.
(8) Press the [2] key to return to 1. CUTOFF screen.
(9) Press the [DISPLAY] key twice to return to the normal
screen.
Adjustment Item
R
1. CUT OFF
G
← ←
← ←
←
– / – /0/ –
←
–
-2 –1
+1/+1 –
←
–/0
-2/0/0 –
← ←
Variable Initial setting
range value
–32 –– +31 0
–32 –– +31 0
(No. 52176) 1-19