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JVC AV-48P775/H Service Manual page 51

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Measuring
Item
instrument
OVERALL
Signal
CONVERGENCE
generator
(POINT)
adjustment
Remote
control unit
B4
B3
B2
B1
H#0
H#1
H#2
V#0
V#1
V#2
V#3
V#4
V#5
V#6
V#7
V#8
Area C
Area D
A1
A2
48" model
174
348
56" model
204
407
REMOTE CONTROL KEY POSITION
INPUT key
For adjustment
pattern change
crosshatch
/ Adjust point
crosshatch
Number keys
For cursor shifting
[2] : up
[4] : left
[5] : center
[6] : right
[8] : down
MUTING key
For storing
adjustmentdata
in memory
Test point
Adjustment part
[ 7.CONVER B ]
A4
A3
A2
Cursor Point of adjustment
A1
Fig.1
H#3
H#4
H#5
H#6
H#7
H#8
H H H # # #
#4 : 0
: 0
: 0
V#4 :
V#4 :
V#4 : 0
Area A
Area B
Fig.2
A3
A4
B1
B2
435
522
82
164
509
611
96
192
SPAN TABLE (mm)
SELECT key
For adjusting
POWER
TV CATV VCR DVD
ASPECT
color change
MULTI SCREEN
TWIN
INDEX
SELECT
SLEEP
FREEZE
SWAP
ML/MTS
DISPLAY
+
DISPLAY key
INPUT
Displaying
1
2
3
adjustment data
4
5
6
D/A
i.LINK MENU
7
8
9
RETURN+
TIMER
0
TV
TUNE
THEATER
VIDEO
SUB
FAVORITE
PRO
STATUS
CHANNEL
SUB
NATURAL
SOUND
CINEMA
LIGHT
C.C.
OK key
MUTING
GUIDE
CH
Display colors
change for adjusting
VOL
VOL
OK
CH
VOL+ / VOL- /
MENU
BACK
CH+ / CH- keys
VCR CHANNEL
VCR DVD
PREV NEXT
POWER
TV VCR
For convergence
REW
PLAY
FF
adjustments
[CH+] : up
REC
STOP
PAUSE
[CH- ] : down
OPEN CLOSE
STILL PAUSE
[VOL+] : left
[VOL -] : right
RM-C14G
NOTE:
Perform this adjustment after performing OVERALL
CONVERGENCE (LINE) check.
It adjusts displaying and checking adjustment data by
the [DISPLAY] key. Adjust in order of area A, area B,
area C and area D.
(1) Receive NTSC crosshatch signal.
(2) Select 7.CONVER B from SERVICE MENU. Then
appear green crosshatch pattern for adjustment.
(See Fig.1)
(3) Press [DISPLAY] key for displaying and checking
adjustment data.
(4) Press [ 2 ] / [ 4 ] / [ 5 ] / [ 6 ] / [ 8 ] keys respectively,
move the cursor to the adjusting point.
(5) Press [CH+] / [CH-] / [VOL+] / [VOL-] keys, adjust the
position of the adjusting point so that it is located at
the place as shown in Fig.2.
(6) Adjust area A.
(7) Adjust area B.
(8) Adjust area C.
(9) Adjust area D. It adjusts toward an outside from the
inside of a screen. (e.g. H#3 > H#2 > ---)
H#0 is fixed data with the value inputted by
adjustment of area C. When the point of H#0 needs
to be adjusted, adjusts the data of H#1 and H#2.
If the data of H#1 adjusts H#0, H#2 will move, the
data of H#2 adjusts H#1 and H#2. It repeats if
needed. (See Fig.3)
(10) Press [SELECT] key to select the red and blue
crosshatch
convergence adjustments so that they align with the
adjusting points of the green crosshatch pattern
(reference color).
B3
B3
(11) Press [OK] key to change the display colors to 3
246
287
colors from 2 colors (adjusting color + green) and
287
335
make sure that the convergence has been aligned
with each other.
(12) Press [MUTING] key to memorize the set values.
(13) Perform an AUTO CONVERGENCE PRESET.
ADJUSTMENT PROCEDURE OF LINE H#1
H#0H#1
NOTE:
Adjust in consideration of a surrounding line moving.
Description
patterns,
respectively,
H#2
H#0H#1
H#2
Fig.3
and
make
H#0H#1
H#2
(No.YA173)1-51

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