JVC AV-20D304/SA Service Manual page 22

Measuring
Item
instrument
SUB COLOR Signal
generator
Oscilloscope
Remote
control unit
Y
W
No Setting item
S03 COLOR
SUB TINT Signal
generator
Oscilloscope
Remote
control unit
Y
W
No Setting item
S04 TINT
Test point Adjustment part
TP-B [1.V/C(S)]
TP-E S03 : COLOR
[CRT SOCKET
PWB]
G
R
(A)
(-)
0V
C
B
(+)
M
Variable Initial setting
range value
0~127 41
TP-B [1.V/C(S)]
TP-E S04 : TINT
[CRT SOCKET
PWB]
G
R
(B)
(-)
0V
C
B
M (+)
Variable Initial setting
range value
0~127 63
Description
[ Method of adjustment without measuring instrument ]
(1) Receive the broadcast.
(2) Select <S03>(COLOR) of the 1.V/C(S).
(3) Set the initial setting value of the <S03> with the
[VOLUME (-/+)] key.
(4) If the color is not the best with the Initial setting
value, make fine adjustment of the <S03> until you
get the optimum color.
[ Method of adjustment using measuring instrument ]
(1) Receive the full field color bar signal (75% white).
(2) Select <S03>(COLOR) of the 1.V/C(S).
(3) Set the initial setting value of the <S03> with the
[VOLUME (-/+)] key.
(4) Connect the oscilloscope between TP-B and TP-E.
(5) Adjust <S03> and bring the value of (A) in the
illustration to +10V.
[ Method of adjustment without measuring instrument ]
(1) Receive the broadcast.
(2) Select <S04>(TINT) of the 1.V/C.
(3) Set the initial setting value of the <S04> with the
[VOLUME (-/+)] key.
(4) If the tint is not the best with the initial setting value,
make fine adjustment of the <S04> until you get the
optimum tint.
[ Method of adjustment using measuring instrument ]
(1) Receive the full field color bar signal (75% white).
(2) Select <S04>(TINT) of the 1.V/C.
(3) Set the initial setting value of the <S04> with the
[VOLUME (-/+)] key.
(4) Connect the oscilloscope between TP-B and TP-E.
(5) Adjust <S04> and bring the value of (B) in the
illustration to +14V.
AV-20D304
(No.52103)1-21