Sharp 20U-FS1, Service Manual

Page: 23 / 56

23
20U-FS1
CU20FS1
23-1
23-2
ADJUSTMENT ITEM ADJUSTMENT POSITION CONTR
OL
PRE-ADJUST REQ
UIREMENT
CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PR
OCEDURE
1)
GET IN
Y
-MUTE FUNCTION BY R/C
.
2)
ADJUST THE
V02
B
US D
A
T
A
T
O
GET A
W
A
VEFORM AS BELO
W.
3)
DISABLE THE
Y
-MUTE
**PLS
T
AKE NO
TE
THA
T SER
VICE MODE D
A
T
A
F53 NEED
T
O
SET +8
SUB-TINT
V02
STEP RANGE
0-127
I 2
C CONTR
OL
OPTION SET UP
, B
US SET UP
,
VCO ADJ
, RF-A
GC
US 10 CH HALF COLOR BAR P
A
TTERN
120V B-AMP
TR BASE (TP851)
CONFIRRM WITH
OSCILLOSCOPE
ADJUSTMENT ITEM ADJUSTMENT POSITION CONTR
OL
PRE-ADJUST REQ
UIREMENT
CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PR
OCEDURE
SUB-COLOR
V03
STEP RANGE
0-127
I
2
C B
US CONTR
OL
OPTION SET UP
, B
US SET UP
,
VCO ADJ
, RF-A
GC
,
SUB-PICT
, SUB-TINT
US 10 CH HALF COLOR BAR P
A
TTERN
120V R-AMP
TR BASE (TP854)
CONFIRRM WITH
OSCILLOSCOPE
[CONFIRMA
TION]
1)
SET THE
V03
B
US D
A
T
A
T
O
GET A
W
A
VEFORM AS BELO
W
2
)
THIS
W
A
VEFORM SHO
WS
THA
T
THE 75%
WHITE & RED POR
TIONS
OF COLOR BAR BEA
T A
T
THE SAME LEVEL
3)
AFTER THA
T
PLS
STEP UP 10 STEP
DT A
T
V03.
[CHECKING CONFIRMA
TION]
B-AMP BASE (TP851) MUST BE IN STEPPING LEVEL
100% WHITE
WY
R
B
Mg
Cy
G