JVC AV-21D116, Service Manual

Page: 24 / 63

1-24 (No.YA396)
4.8.6 VSM PRESET SETTING
SECTION 5
TROUBLESHOOTING
This service manual does not describe TROUBLESHOOTING.
SECAM BLACK
OFFSET Signal
generator
Remote
control unit [2. V/C]
7. SECAM BL ADJUST (1) Input a SECAM full field colour bar signal.
(2) Select 2. V/C from the SERVICE MENU.
(3) Select
< 7. SECAM BL ADJUST > .
(4) Set the initial setting value of < 7. SECAM BL
ADJUST > .
(5) Switch the [1] key (colour OFF) and [2] key (colour
ON) and make sure that there is no colour on the
black and white screen.
(6) If the black and white screen is not best with the
initial setting value, make fine adjustment until you
get the best black and white screen.
(7) While watching the screen, adjust the value to be the
same colour between ON & OFF by [1] or [2] key.
(8) Press the [DISPLAY] key twice to return to the
normal screen.
Item
Measuring
instrument
Test point Adjustment part Description
Item
Measuring
instrument
Test point Adjustment part Description
VSM PRESET Remote
control unit [4. VSM PRESET]
TINT
COLOUR
BRIGHT
CONT.
SHARP (1) Select 4. VSM PRESET from the SERVICE MENU.
(2) Set the PICTURE MODE to BRIGHT.
(3) Select
< TINT > .
(4) Set the initial setting value of < TINT > as shown in
the below table.
(5) Select < COLOUR > to < SHARP > in turn, and set
the values.
(6) Respectively select the "SOFT" and "STANDARD" .
Make similar adjustment as same step as above.
TINT
COLOUR
BRIGHT
CONT.
SHARP
VSM PRESET VSM PRESET
Setting item
BRIGHT
15
15
15
30
20
STANDARD SOFT
18
15
14
12
BRIGHT
/ : SELECT
- / + : OPREATE DISP : EXIT
TINT **
COLOUR **
BRIGHT **
CONT.
**
SHARP **