Sharp 34H-F200F, Service Manual

Page: 9 / 68

9
9-1
9-2
34H-F200
34H-F200F
FOCUS ADJUSTMENT
NO
1
ADJUSTMENT POINT
FOCUS FBT F
ocus-VR
ADJUSTMENT CONDITION / PR
OCEDUR
E
(1) Receiv
e the "Monoscope P
atter
n" signal.
(2) Press R/C to set Picture NORMAL condition. (3) Adjust the f
ocus
VR-1 (F1) to mak
e
the hor
iz
ontal line on
the top r
ight of the scr
een as fine as possib
le
.
(4) Adjust the f
ocus
VR-2 (F2) to mak
e
the v
er
tical line on
the top r
ight of the scr
een as fine as possib
le
.
(5) Repeat item (c) once again to get the best f
ocusing.
(Ref
er to Adjustment P
oint as r
ight dr
a
w
ing)
W
A
VEFORM OR O
THERS
(Adjusted point)
PR
O
TECT
OR OPERA
TION CHECKING
NO
1 2
ADJUSTMENT POINT
HV PR
O
T
ECT
OR
O
T
HER
PR
O
TECT
OR
ADJUSTMENT CONDITION / PR
OCEDUR
E
(1) Receiv
e "Monoscope P
atter
n" signal.
(2) Connect output of Bias Bo
x to D757 cathode
(3) Set v
oltage of Bias Bo
x to 18V and mak
e
sure the
protector is not w
o
rk.
(4) Set v
oltage of Bias Bo
x to 27V
, and mak
e sure the
protector is w
o
rk
.
(1) Once finish rectified Electrolytic Capacitor shor
t testing
in + B line
, chec
k
all possib
le damaged components on
+B line
.
(Use r
andom selected set f
or inspection)
W
A
VEFORM OR O
T
HERS
50
Adjust these Hor
iz
ontal
and V
e
rtical
lines
HORIZONTT
AL,
VER
TICAL
CHECKING
NO
1
ADJUSTMENT POINT
50hz prog FULL (input 576p signal)
ADJUSTMENT CONDITION / PR
OCEDUR
E
(1) Select the "COMPONENT" mode
.
(2) Receiv
e the signal of the D
VD signal gener
ator
.
(prog
ressiv
e
signal/576p)
(3) Select full mode
.
(4) Chec
king H-siz
e and
V
-siz
e
.
W
A
VEFORM OR O
T
HERS
V
-SIZE Spec 8% r
ange +2% -2%
H-SIZE Spec 8% r
ange +2% -2%
2
6
0hz prog FULL
(input 480p signal)
Same as 50hz prog FULL.
A/V INPUT AND OUTPUT CHECKING
NO
1 2 3 4 5 6 7
ADJUSTMENT POINT
AV OUTPUT CHECK AV
-1
INPUT CHECK AV
-2
INPUT CHECK Component (480i, 576i, 480p 576p) INPUT CHECK REAR S-Video T
e
rminal
INPUT CHECK FR
ONT
INPUT CHECK FR
ONT S-Video
T
e
rminal
INPUT CHECK
ADJUSTMENT CONDITION / PR
OCEDUR
E
(1) Receiv
e the "P
AL Colour Bar" signal (100%
White
Colour Bar
, Sound 400Hz 100% Mod)
(2)
T
e
rminate the
Video output with a 75 ohm impedance
.
Mak
e sure the output is as specified (1.0
Vp-p — 3dB)
(3)
T
e
rminate the A
udio output with a 10 K
ohm impedance
.
Mak
e sure the output is as specified (1.77
Vp-p — 3dB)
Chec
k of A
V
Chec
k of A
V
Chec
k of A
V
Chec
k of A
V
Chec
k of A
V
Chec
k of A
V
W
A
VEFORM OR O
THERS
CHECKING FUNCTION OPERA
TION (T
win Screen,PinP)
NO
1 2 3 4 5
ADJUSTMENT POINT
T
w
in Screen
(ON-OFF) (Picture quality) P in P (ON-OFF) (SIZE) (MO
VE)
P out P (ON-OFF) (MO
VE)
FREEZE CH-SCAN
ADJUSTMENT CONDITION / PR
OCEDUR
E
(1) Press "T
win Screen" k
ey
.
(2) Reciv
e "E-5ch Monoscope P
atter
n" signal at SUB ch.
(3) Chec
k the pic
ture quality
.
(4) Receiv
e "E-12ch Colour bar" signal at SUB ch.
(5) Chec
k the colour le
v
el.
(1) Press "P in P" k
e
y.
(2) Chec
k the pic
ture quality of SUB picture
.
(3) Press "P in P" k
e
y.
(4) Chec
k the SIZE of SUB pic
ture
.
(5) Press "MO
VE" k
ey
.
(6) Chec
k the position of SUB pic
ture
.
(1) Select NORMAL in
Wide mode
.
(2) Press to "P in P" k
e
y.
(3) Chec
k the pic
ture quality of SUB picture
.
(4) Press "MO
VE" k
ey
.
(5) Chec
k the position of SUB pic
ture
.
(1) Receiv
e "LIVE picture" signal.
(2) Press "P in P" k
e
y.
(3) Chec
k the LIVE and FREEZE pic
tures
.
(1) Press "CH-SCAN" k
e
y.
(2) Chec
k the m
ulti pictures
.
W
A
VEFORM OR O
THERS