JVC AV-20D304/SA, Руководство по обслуживанию

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AV-20D304
(No.52103)1-21
SUB COLOR Signal
generator
Oscilloscope
Remote
control unit
TP-B
TP-E
[CRT SOCKET
PWB] [1.V/C(S)]
S03 : COLOR [ 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.
SUB TINT Signal
generator
Oscilloscope
Remote
control unit
TP-B
TP-E
[CRT SOCKET
PWB] [1.V/C(S)]
S04 : TINT [ 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.
Item
Measuring
instrument
Test point Adjustment part Description
W
B
0V
(-)
(+)
(A)
Y
C
G
M
R
No
S03
Setting item
COLOR 0~127
Variable
range
Initial setting
value
41
W
M
0V
(-)
(+)
(B)
Y
C
G
R
B
No
S04
Setting item
TINT 0~127
Variable
range
Initial setting
value
63