JVC AV-21E3 Service Manual page 23

Measuring
Item
instrument
Signal
Ad justment
gener ator
of TINTⅠ Ⅰ Ⅰ Ⅰ
Remote
control unit
Signal
Ad justment
gener ator
of TINTⅡ Ⅱ Ⅱ Ⅱ
Oscillo-
scope
Remote
control unit
W
Y
Cy
Test point Ad justment part
6. TINT
NT SC 3.58 T INT
NT SC 4.43 TINT
TP-47G/R 6. TINT
TP-E (# # # # )
[CRT
NT SC 3.58 T INT
SOCKET
PWB]
B
R
Mg
(－)
0V
(B)
(＋)
G
NT SC 4.43 TINT
[Method of adjustm ent without m easuring 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 s etting value of NTSC 3.58 with the MENU - / +
key.
6. If you cannot get the best tint with the initial s etting 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 adjustm ent using measur ing 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 s etting value of NTSC 3.58 with the MENU - / +
key.
6. Connect the osc illosc ope between TP-47G/R and TP-E. (#).
7. Adjust NTSC 3.58 TINT to bring the value of
illustration to +9V(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. 52028
Description
(B)
AV-21E3
in the
23