JVC AV-48P777/H Service Manual page 38

Measuring
Item
instrument
SIDE PIN Signal
adjustment generator
Remote
control unit
TRAPEZIUM Signal
adjustment generator
Remote
control unit
1-38 (No.YA455)
Test point Adjustment part
[1.Adjust]
D003 : EW
D014 : BOT.CORN
D016 : TOP.CORN
Straight
[1.Adjust]
D012 : EW.TRAP
Parallel
Description
(1) Receive NTSC crosshatch signal.
(2) Select FULL mode with [ASPECT] key.
(3) Switch off the convergence circuit.
(4) Enter TV-Micro Service [1. Adjust].
(5) Select <D003> (EW), <D014> (BOT.CORN) and
<D016> (TOP.CORN).
(6) Adjust <D003>, <D014> and <D016> to make the
vertical lines at the left and right edges of the screen
straight.
(7) Press [MUTING] key to memorize the set value.
(8) After adjustment, switch on the convergence circuit.
NOTE :
After making adjustments, confirm that the
horizontal position is properly adjusted. If the
horizontal is out of alignment, readjust it. Adjust H.
SIZE & SIDE PIN reparably.
NOTE :
Refer to the FLOWCHART OF ADJUSTMENT for the
way to switch off/on the convergence circuit.
(1) Receive NTSC crosshatch signal.
(2) Select FULL mode with [ASPECT] key.
(3) Switch off the convergence circuit.
(4) Enter TV-Micro Service [1. Adjust].
(5) Select <D012> (EW.TRAP).
(6) Adjust <D012> to bring the vertical lines at the right
and left edges of the screen parallel.
(7) After adjustment, switch on the convergence circuit.
(8) Press [MUTING] key to memorize the set value.
NOTE :
After making adjustments, confirm that the
horizontal position is properly adjusted. If the
horizontal is out of alignment, readjust it. Adjust H.
SIZE & SIDE PIN reparably.
NOTE :
Refer to the FLOWCHART OF ADJUSTMENT for the
way to switch off/on the convergence circuit.