Key Level Adjustment; Color Bar Level Adjustment - Panasonic AW-SW350P Service Manual

3. KEY Level Adjustment

BOARD MAIN
TP PGM OUT1
ADJ. VR7(BUS K),
SIGNAL Color Bar Signal With Y Reference
(White 100%)
M. EQ Oscilloscope
SPEC. 100IRE±2IRE
1. Set the SET UP switch SW1 to the lower side (FS
OFF) and SW2 to the upper side (BB OUT).
2. Supply the BB signal from the BB output connector
of AW-SW350 to an EXT input of signal generator
so that the signal generator is synchronized with
the AW-SW350.
3. Press the (2) button of A-bus and B-bus, and
AUTO button as shown in the following figure.
4. Set the SOURCE SW to the IN5 position.
5. Turn the GAIN VR to the fully clockwise position.
6. Adjust VR7 (BUS K) so that the Composite Level is
within the specification.
(2)
KEY
V V V V
KEY AUTO

4. Color Bar Level Adjustment

BOARD FSYNC
TP PGM OUT1
ADJ. VR701(BUS A),VR702(BUS B)
SIGNAL -----
M. EQ Oscilloscope
SPEC. 100IRE±2IRE
1. Set the SET UP switch SW1 and SW2 to the upper
side (FS ON, BB OUT).
2. Set the BLACK/COLOR/BAR
BAR position.
3. Press the (3)
WIPE button as shown in the following figure.
4. Move the fader lever to the A-Bus side and adjust
VR701 so that the Composite Level is within the
specification.
5. Move the fader lever to the B-Bus side and adjust
VR702 so that the Composite Level is within the
specification.
6. Repeat the steps 4. and 5 so that the difference
between the A-bus output and B-Bus output is
minimized.
BLACK/COLOR/BAR
ELE-2
select switch to the
buttons of A bus and B bus and
V V V V
<NTSC>
V V V V
<PAL>
(3)
WIPE