JVC GX-N7E User Manual

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Measuring : . Measuring | Test point and Adjustment part Description
No.
Item
‘ieeia
song
i
Test
point
and
Adjustment
part
Descripton
|
tal
Pisa
‘
instrument
Sait
=
mG
i!
~
|
VIDEO
OUT
L304
(WIDTH
Adjustin
edi
ith
illoscope.
le
Rough
eer
R12
(Y
GAIN)
©
Set
the
IR!S
SWITCH
to
AUTO
Rn
o
Hay
.
R332
(H
hue
[_Adiusting
procedure
with
oscilloscope.
|
pea (Ha) [PRE-PRO -[PRE-PRO BOARD} Adjustment ( 10:1 ) R339 (H LIN-2) © Set the IRIS CONTROL SWITCH to AUTO
t 10: :
.
e
0:1
BOARD}
R213
(IRIS
SET}
1.
Measure
VIDEO
OUT,
and
as
shown
in
R331
(H
LIN-3)
1.
As
shown
in
Fig.2-6
(a),
adjust
R305
GAIN
[MOTHER
BOARD]
Fig.
2-4
(a),
adjust
R213
(IRIS
SET) so
H
R305 (FOCUS)
:
Pepe
ee
ee
and
disk:
the
Geedladns,
Bakes
G
9
Veo
awe
(FOCUS)
so
that
the
carrier
is
minimized.
AUTO IRIS (pedestal-white peak) y [DEF & HV BOARD]
a ae White
Gray scale pattern F
pattern
0.7
VPD-wP
apn
Serer
WK Fig. 2-6 (a)
ro: 2. As shown in Fig. 2-6 (b), adjust L304
(WIDTH), R332 (H LIN-1), R339 (H LIN-2),
and R331 (H LIN-3) so that the carrier is
Fig, 2-4 (a) minimized and becomes flat.
ae te
2. Measure Gs», and as shown in Fig, 2-4 (b). ‘ : f |
adjust
R12
(Y
GAIN)
so
that
the
wave-
>
+
forms become 0.4VoB-wP (optical black- ‘ ea !
white peak)
Fig. 2-6 tb}
; 3. Repeat above steps 1 and 2 until optimum
we
conditions
are
obtained.
(Note) 1. This adjustment is effective only
0.4V0B-wP when adjustment of 4.1 MHz trap
is correct. :
oB 2. When colors other than green are
; observed, adjust R15 (R GAIN)
Fig. 2-4 (b) and R18 (B GAIN), and reduce
L 4 the carriers.
5.
|
Rough
Oscilloscope
|
VIDEQOUT
R11
(R-Y
BURST
1.
Observe
VIDEO
OUT
by
removing
the}
|
|
|...
Jo
mee
_——
a
a
| Adjustment (‘ sate) LEVEL) lans:cap: Vectorscope | VIDEO OUT Adjusting procedure with vectorscope
of
the
10:1
R12
(Y-8
BURST
2.
Expand
the
burst
portion
-as
shown
in
BURST
LEVEL)
Fig.
25
©
Set
the
FRIS
CONTROL
SWITCH
to
AUTO.
peckee iy? ‘
LEVEL
(AGC
BOARD}
3.
Alternately
adjust
R11
(R-Y
BURST
i
pe
.
in
Fi
j
LEVEL) and R12 (Y-B BURST LEVEL) so fe] White 1. As shown in Fig. 2-6 (c), alternately adjust
that
the
waveforms
display
an
optimum
i
pattern
R305
(FOCUS),
L304
(WIDTH),
R332
{H
“interleave” status by possessing 180° LIN-1), Risse (H LIN-2), and R331 as LIN-
phase difference as shown in Fig. 2-5 (b) 3) to achieve convergence at one point in
and
also
that
their
level
becomes
0.3
Vp-p.
the
MG
direction.
ft TEN
TTT AER
ONS
Mg
| Fig. 2-6 (c)
ee oe i ts
16E (No. 5550)
(No. 5550) 15E

JVC GX-N7E Specifications

General

Brand	JVC
Model	GX-N7E
Category	Camcorder
Language	English