JVC AV-21Q3/D Schematic Diagrams page 36

AV-21Q3
AV-21QMG3
AV-2115EE
Measuring
Item
instrument
Signal
Adjustment
generator
of TINTⅠ Ⅰ Ⅰ Ⅰ
Remote
control unit
Signal
Adjustment
generator
of TINTⅡ Ⅱ Ⅱ Ⅱ
Oscillo-
scope
Remote
control unit
W
Y
Cy
26
Test point Adjustment part
6. TINT
NTSC 3.58 TINT
NTSC 4.43 TINT
TP-47G/R 6. TINT
TP-E (# # # # )
[CRT
NTSC 3.58 TINT
SOCKET
PWB]
B
R
Mg
(－)
0V
(B)
(＋)
G
NTSC 4.43 TINT
[Method of adjustment without measuring instrument]
1. Input a NTSC 3.58 full field colour bar signal (75% white).
2. Enter the SERVICE MENU.
3. Select 2. V/C from SERVICE MENU.
4. Select 6. TINT with the MENU ▼/▲ key.
5. Set the initial setting value of NTSC 3.58 with the MENU - / +
key.
6. If you cannot get the best tint with the initial setting value, make
fine adjustment until you get the best tint.
When NTSC 3.58 is set, NTSC 4.43 will be automatically set at the
respective values.
[Method of adjustment using measuring instrument]
1. Input a NTSC 3.58 full field colour bar signal (75% white).
2. Enter the SERVICE MENU.
3. Select 2. V/C from SERVICE MENU.
4. Select 6. TINT with the MENU ▼/▲ key.
5. Set the initial setting value of NTSC 3.58 with the MENU - / +
key.
6. Connect the oscilloscope between TP-47G/R and TP-E. (#).
7. Adjust NTSC 3.58 TINT to bring the value of
illustration +7V(W- Cy). (Voltage value between (W) and (Cy))
When NTSC 3.58 is set, NTSC 4.43 will be automatically set at the
respective values.
No. 52027
Description
(B)
in the