JVC AV-2956BE Service Manual page 22

Measuring
Item
instrument
H. SIZE Signal
generator
Remote
control unit
SIDE PIN Signal
generator
Remote
control unit
TRAPEZIUM Signal
generator
Remote
control unit
1-22 (No.YA466)
Test point Adjustment part
[4.DEF]
5. H-SIZE
Screen size 91%
Picture size 100%
[4. DEF]
7. EW-PIN
Straight
[4.DEF]
6. TRAPEZ
Parallel
Description
PAL H. SIZE
(1) Receive a PAL crosshatch signal.
(2) Select 4. DEF from the SERVICE MODE.
(3) Select <5. H-SIZE>.
(4) Set the initial setting value of <5. H-SIZE>.
(5) Adjust <5. H-SIZE> to make the horizontal screen
size to 91% of the picture size.
(6) Press the [OK] key to memorize the set values.
NTSC H. SIZE
(1) Receive a NTSC crosshatch signal.
(2) Follow the same step 2 to 6 as in PAL H. SIZE.
PAL SIDE PIN
(1) Receive a PAL crosshatch signal.
(2) Select 4. DEF from the SERVICE MODE.
(3) Select <7. EW-PIN>.
(4) Set the initial setting value of <7. EW-PIN>.
(5) Adjust <7. EW-PIN> so that the first vertical lines at
the left and right edges on the screen are straight.
(6) Press the [OK] key to memorize the set values.
NTSC SIDE PIN
(1) Receive a NTSC crosshatch signal.
(2) Follow the same step 2 to 6 as in PAL SIDE PIN.
PAL TRAPEZIUM
(1) Receive a PAL crosshatch signal.
(2) Select 4. DEF from the SERVICE MODE.
(3) Select <6. TRAPEZ>.
(4) Set the initial setting value of 6. TRAPEZ.
(5) Adjust <6. TRAPEZ> so that the vertical lines at the
left and right edges on the screen are in parallel.
(6) Press the [OK] key to memorize the set values.
NTSC TRAPEZIUM
(1) Receive a NTSC crosshatch signal.
(2) Follow the same step 2 to 6 as in PAL TRAPEZIUM.