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DISPLAY PCB
1) Items to be adjusted:
I
e t
m
V
o
p
v
l o
a t
g
e
s
e
t t
n i
g
2) Adjustment and Test Point Locations
3) Equipment connection/Procedure
Input
Input
Connection
Point
Eye
51.74°
LCD
ADJUSTMENT
V
o
t l
m
t e
r e
(TOP VIEW)
VR410
TP2
Vop voltage setting
Set
Output
TP2
Input
Output
Adjust
Signal
Connection
VR410
Watching the LCD at a 51.74° angle to the horizontal, adjust Vop
voltage so that unenergized segments are seen dimly.
— 11 —
M
e
a
s
r u
n i
g
n I
t s
u r
Voltmeter
Output
Point
Voltmeter
TP2
m
e
t n
Adjust for
Adjust for 4.4 ± 0.1 V reading
on voltmeter.
Make fine adjustment accord-
ing to the next instruction.
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