Toshiba 43A9UA, Service Manual

Page: 16 / 106

– 16 –
GENERAL ADJUSTMENTS
D
Y
ANAMIC
D
YNAMIC
D
YNAMIC
D
YNAMIC
Reset 1 mode
Phillips patter
n
Phillips patter
n
(P
AL-I)
Phillips patter
n
(P
AL-I)
Phillips patter
n
(P
AL-I)
Phillips patter
n
(P
AL-I)
TP-V
–
TP-G
Screen
adjustment
Screen
adjustment
Screen
adjustment
Screen
adjustment
Hook it up with a digital v
oltmeter
, and adjust the DC v
olt-
age according to
VPOS data.
1)
Adjust the center
ing magnet so that the v
er
tical posi-
tion comes to the center of the dumm
y screen (cross
patter
n).
2)
Do not change [VPOS] data.
1)
Adjust the center
ing magnet so that the hor
iz
ontal po-
sition comes to the center of the dumm
y screen (cross
patter
n).
2)
Do not change [HPOS] data.
Adjust the v
e
rtical amplitude so that top and bottom flags
disappear
. (Align the v
e
rtical center of the patter
n with the
center mar
k of the mask.)
Adjust the hor
izontal amplitude so that the left and r
ight
flags disappear
.
10
±
10 mV
Adjustment standard
V
-Balance
v
oltage adj.
V
e
rtical
position adjustment Hor
iz
ontal
position adjustment [HIT] [VLIN] [WID]
V
-Balance v
oltage
V
e
rtical amplitude
adjustment Hor
iz
ontal
amplitude adjustme
Item
Name
Setting
(User control)
Input signal
Measurement
point
Adjustment procedure
Q709 emitter
1)
Apply the f
ollo
wing v
oltages to the respectiv
e ter
mi-
nals of P701.
+5V
to the ter
minals #15 and #16
+9V
to the ter
minals #13
-9V
to the ter
minals #14
2)
By L719, adjust the frequency of the emitter Q709.
32
±
0.1 kV
Adjustment standard
PLL frequency adjustment
Item
Name
Setting
(User control)
Input signal
Measurement
point
Adjustment procedure
Unit adjustment :
DIGIT
AL-CONVER