PRO-730HDI
98
1
2
3
4
1
2
3
4
C
D
F
A
B
E
7.7 ADJUSTMENT
Oscilloscope
or
1
Brightness Adjustment
Start
1st FAC
(DOWN)
Telop: Blue
STD
CUT–R
Data value
STD OFFSET
: CUT-R
0
: CUT-G
: CUT-B
b
b
CH1
CH2
(X)
(Y)
Cut off level
(180V DC)
GND
BRIGHT
Black burst
G CRT
DRIVE
ASSY
TP-GK
Input signal : Black Burst (INPUT 1)
Oscilloscope
CH1
CH2
(X)
(Y)
Cut off level
(180V DC)
GND
B CRT
DRIVE
ASSY
TP-BK
VR5201
B CRT
DRIVE
ASSY
Oscilloscope
CH1
CH2
(X)
(Y)
Cut off level
(180V DC)
GND
TP-RK
VR5101
R CRT
DRIVE
ASSY
R CRT
DRIVE
ASSY
When the DEFLECTION SERVICE Assy or VIDEO UCOM
SERVICE Assy is replaced, check the following to confirm if
the above adjustment is necessary:
(1) Make a note of the data of CUT R, CUT G, CUT B, and
BRIGHT. (1st FAC) (
∞
DOWN)
(2) Input "0" as parameters for (1) and check TP-RK, TP-GK
and TP-BK of the CRT DRIVE assembly. If the levels are
within 180 V
±
5 V, the adjustment is not necessary.
Input the noted data.
If the levels are not within the above level, proceed with
the above adjustment.
0
0
4