JVC RM-C1305-1H Service Manual page 21

Measuring
Item
instrument
SUB Remote
COLOUR Ι control unit
adjustment
Signal
SUB
COLOUR ΙΙ generator
adjustment
Oscilloscope
Remote
control unit
C
W
Y
AV-21V311/B
(V )
W-G
AV-21V511/B
PAL +14V
SECAM +2V
NTSC +2V
Test point Adjustment part
[2. VC]
5. COLOUR
TP-47G [2. VC]
5. COLOUR
TP-E ( )
[CRT
SOCKET
PWB]
B
M
R
(A)
(–)
0V
(+)
G
AV-21V531/B
+17V
+6V
+5V
Description
[Method of adjustment without measuring instrument]
Notes:
•
Proceed to the following adjustment after having completed
the SUB CONTRAST adjustment.
•
Set PICTURE MODE (VSM) to "BRIGHT".
– PAL COLOUR –
(1) Receive a PAL broadcast.
(2) Select 2. VC from the SERVICE MENU.
(3) Select 5. COLOUR.
(4) Set the initial setting value for PAL COLOUR.
(5) If the colour is not best with the initial setting value, make
fine adjustment until you get the best colour.
(6) Press the [DISPLAY] key twice to return to the normal
screen.
– SECAM COLOUR –
(1) Receive a SECAM broadcast.
(2) Press the [COLOUR SYSTEM] key to select the SECAM
colour system.
(3) Make fine adjustment of SECAM COLOUR in the same
way as for "PAL COLOUR".
– NTSC 3.58 COLOUR –
(1) Receive a NTSC 3.58MHz broadcast.
(2) Press the [COLOUR SYSTEM] key to select the NTSC
3.58 colour system.
(3) Make similar fine adjustment of NTSC 3.58 COLOUR in
the same way as for "PAL COLOUR".
– NTSC 4.43 COLOUR –
When adjustment is done for NTSC 3.58 COLOUR,
appropriate values are automatically set for NTSC 4.43
COLOUR.
[Method of adjustment using measuring instrument]
Notes:
•
Proceed to the following adjustment after having completed
the SUB CONTRAST adjustment.
•
Set PICTURE MODE (VSM) to "BRIGHT".
– PAL COLOUR –
(1) Receive a PAL colour bar signal (full field colour bar 75%
white).
(2) Select 2. VC from the SERVICE MENU.
(3) Select 5. COLOUR.
(4) Set the initial setting value of PAL COLOUR.
(5) Connect the oscilloscope between TP-47G and TP-E.
(6) Adjust PAL COLOUR to set the value (A) in the figure to
(V ) shown in the table.
W-G
– SECAM COLOUR –
(1) Receive a SECAM colour bar signal (full field colour bar
75% white).
(2) Press the [COLOUR SYSTEM] key to select the SECAM
colour system.
(3) Set the initial setting value of SECAM COLOUR.
(4) Adjust SECAM COLOUR to set the value (A) in the figure
to (V ) shown in the table.
W-G
– NTSC 3.58 COLOUR –
(1) Receive a NTSC 3.58 colour bar signal (full field colour
bar 75% white).
(2) Press the [COLOUR SYSTEM] key to select the NTSC
3.58 colour system.
(3) Set the initial setting value of NTSC 3.58 COLOUR.
(4) Adjust NTSC 3.58 COLOUR to set the value (A) in the
figure to (V ) shown in the table.
W-G
– NTSC 4.43 COLOUR –
When adjustment is done for NTSC 3.58 COLOUR,
appropriate values are automatically set for NTSC 4.43
COLOUR.
(No. 52176) 1-21