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JVC AV-21TS2EK
For POWER SUPPLY CHECK, FOCUS, IF
CIRCUIT, VSM PRESET ADJUSTMENTS -
See Matrix
VIDEO/CHROMA CIRCUIT ADJUSTMENT
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.
Items in ( ) are automatically set to table.
(See table opposite).
For adjustment of WHITE BALANCE, SUB
BRIGHT, SUB CONT., SUB COLOUR I, SUB
TINT - See Matrix
Adjustment of SUB COLOUR II
Measuring instrument:
Signal Generator
Oscilloscope
Remote Control Unit
Adjustment part:
Test point:
NTSC 3.58 COLOUR
TP-47B
TP-E
[CRT SOCKET PWB]
Description:
(NTSC 3.58 COLOUR)
1. Input a NTSC 3.58MHz COMPOSITE VIDEO
Adjustment part:
signal (full field colour bar with 75% white) from
5.COLOUR
(PAL~NTSC)
the EXT terminal.
2. Set the initial setting value of NTSC 3.58
Description:
COLOUR with the FUNCTION -/+ key.
3. Adjust NTSC 3.58 COLOUR and bring the
[Method of adjustment using measuring instru-
value of (A) of the illustration to +5V (Voltage
ment]
difference between White and Blue).
Adjustment part:
4. Press the MENU key and memorize the setting
PAL COLOUR
value.
(NTSC 4.43 COLOUR)
Description:
1. When NTSC 3.58 is set, NTSC 4.43 will be
(PAL COLOUR)
automatically set at the respective values
1. Receive a PAL full field colour bar signal(75%
white).
2. Select 2.V/C from the SERVICE MENU.
For Adjustment of BLACK OFFSET (SECAM),
DEFLECTION CIRCUIT, V-SHIFT, V-SIZE,
3. Select 7.COLOUR with the FUNCTION UP/
H.CENTRE, V-S.CR and AUDIO CIRCUIT - See
DOWN key.
Matrix
4. Set the initial setting value for PAL COLOUR
with the FUNCTION - or + key.
5. Connect the oscilloscope between TP-47B and
The End
TP-E
6. Adjust PAL COLOUR and bring the value of (A)
in the illustration to +1V (voltage difference
between White and Blue).
7. Press the MENU key and memorize the setting
value.
Adjustment part:
SECAM COLOUR (AV-21TS2EN)
Description:
(SECAM COLOUR)
1. Receive a SECAM full field colour bar signal
(75% white).
2. Set the initial setting value of SECAM COL-
OUR with the FUNCTION -/+ key.
3. Adjust SECAM COLOUR and bring the value of
(A) of the illustration to 0 V (Voltage difference
between White and Blue).
4. Press the MENU key and memorize the setting
value.
This area is intentionally left blank.
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