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AV-21L31
AV-25L31
Measuring
Item
instrument
Adjustment
Signal
generator
of
SUB TINT-I
Remote
control unit
Signal
Adjustment
of
generator
SUB TINT-II
Oscilloscope
Remote
control unit
(B)
Cy
W
Y
AV-21L31
AV-25L31
22
Test point
Adjustment part
6. TINT
TP-47G
6. TINT
TP-E (H)
[MAIN
PWB (CRT
SOCKET)]
B
Mg
R
(–)
0V
G
(+)
Model
B (V
)
W-Cy
+6V
/ME
+2V
/ME
Table 2
[Method of adjustment without measuring instrument]
Notes:
• Proceed to the following adjustment after having completed the ad-
justment of SUB PICTURE.
• Set PICTURE MODE (VSM) to "BRIGHT".
1. Receive a NTSC color bar signal (full field color bar 75% white).
2. Select 2. VC from the SERVICE MENU.
3. Select 6. TINT with the MENU &/^ key.
4. Set the initial setting value of NTSC 3.58 with the MENU –/+ key.
5. If you cannot get the best tint with the initial setting value, make fine
adjustment until you get the best tint.
6. Press the DISPLAY key twice to return to the normal screen.
[Method of adjustment using measuring instrument]
Notes:
• Proceed to the following adjustment after having completed the ad-
justment of SUB PICTURE.
• Set PICTURE MODE (VSM) to "BRIGHT".
1. Receive a NTSC color bar signal (full field color bar 75% white).
2. Select 2. VC from the SERVICE MENU.
3. Select 6. TINT with the MENU &/^ key.
4. Set the initial setting value of NTSC 3.58 with the MENU –/+ key.
5. Connect the oscilloscope between TP-47G and TP-E.
6. Adjust NTSC 3.58 TINT to set the value (B) in the figure to the voltage
show in the Table 2.
7. Press the DISPLAY key twice to return to the normal screen.
No. 51908
Description
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