Convergence Adjustment:
2 OF 2
PREPARED BY
CHECKED BY
APPROVED BY
FIG-04
FIG-01
FIG-02
FIG-03
PRODUCT : CTV
PCB/ASSY :F.A.
Roadstar
SHEET : 1 OF 1
RAW MATERIAL / CONSUMABLES :
JIGS / FIXTURE INSTRUMENTS :
PREPARED BY
SR N STOCK NO
LOC DESCRIPTION
QPS
SERVICE REMOTE
1
TV SET
1
SELECT RETMA PATTERN (EU 5CH).
PRESS "MENU+6483" KEYS SEQUENCE TO ACCESS THE MANUFACTURING MODE. THEN PRESS HOTKEY "1".
TO ACCESS 'SERVICE MENU-1'.
1
.HORIZONTAL CENTERING: H-SHIFT
SELECT PARAMETER "H-SHIFT" BY USING CHANNEL DOWN KEY.
ADJUST "H-SHIFT" VALUE BY USING VOLUME UP/DN KEYS SUCH THAT THE PATTERN
IS LOCATED HORIZONTALLY AT CENTRE.
2
VERTICAL LINERITY ADJUSTMENT: V-SLOPE
SELECT "V-SLOPE" & ADJUST IT BY VOLUME UP/DN KEY TO ADJUST CENTRE DOTTED LINE OF RETMA
PATTERN TO THE TOP EDGE OF BLACK HALF PATTERN ( i.e. EXACTLY THE TOP HALF PORTION OF
RETMA PATTERN IS VISIBLE).
3
VERTICAL RASTER SHIFT: V-SHIFT
SELECT "V-SHIFT" AND ADJUST IT SUCH THAT PATTERN WILL APPEAR AT MECHANICAL
CENTRE OF THE PICTURE TUBE.
4
VERTICAL HEIGHT** V-SIZE
SELECT "V-SIZE" AND ADJUST IT SUCH THAT HEIGHT OF THE LION HEAD PATTERN BECOMES ' 9 - 9'.
ACCEPTABLE RANGE IS 8.9 TO 9.1. ( REFER FIG- )
5
VERTICAL SCROLL V-SC
SELECT "V-SC" AND ADJUST IT SUCH THAT BIG CIRCLE WILL LOOK PERFECT CIRCLE.
USE "STAND BY" KEY TO QUIT THE MANUFACTURING/SERVICE MODE.
STAGE: GEOMETRIC ALIGNMENT
Screw to
Tighten CPM
Assy
Convergence
magnets of
CPM Assy
3
