CXA2050S
PIN-PHASE (4)
: Horizontal trapezoidal distortion compensation amount adjustment (V parabola wave
center timing control)
0h = 0.8ms advance Horizontal size for top of picture increases; horizontal size for
bottom of picture decreases.
7h = 0ms
8.9ms from 4VDC VTIM
Fh = 0.8ms delay
Horizontal size for top of picture decreases; horizontal size
for bottom of picture increases.
UP-CPIN
LO-CPIN
V-ASPECT
(4)
(4)
(6)
: Horizontal pin distortion compensation amount adjustment for top of picture
(V parabola wave gain control: Func.)
0h = +0.6V
Horizontal size for top of picture increases.
(compensation amount minimum)
(0.7Vp-p 4:3 mode)
7h =
0V
Fh = –0.6V
Horizontal size for top of picture decreases.
(compensation amount maximum)
: Horizontal pin distortion compensation amount adjustment for bottom of picture
(V parabola wave gain control: Func.)
0h = +0.5V
Horizontal size for bottom of picture increases.
(compensation amount minimum)
(0.7Vp-p 4:3 mode)
7h =
0V
Fh = –0.5V
Horizontal size for bottom of picture decreases.
(compensation amount maximum)
: Aspect ratio control (Gain control for sawtooth wave)
0h = 75% 16:9 CRT full
2Fh = 100% 4:3 CRT full, amplitude: 1.32Vp-p
3Fh = 112%
ZOOM SW
HBLKSW
(1)
(1)
: Zoom mode ON/OFF switch for 16:9 CRT (25% of video cut)
0 = Zoom OFF
1 = Zoom ON
Sawtooth wave amplitude: 1.32Vp-p
Sawtooth wave amplitude: 70%
: HBLK width control ON/OFF switch during 4:3 software full display mode on a 16:9
CRT
0 = Control OFF HBLK pulse generated from HPIN.
1 = Control ON
HBLK pulse generated as pulse generated from HPIN or as
pulse generated from HVCO and width adjusted.
Width adjustment is performed by the LEFT-BLK and
RIGHT-BLK registers.
V-SCROLL
JUMPSW
(6)
(1)
: Vertical picture scroll control during zoom mode on a 16:9 CRT
(DC component added to sawtooth wave AGC output to control ZOOMSW cut
timing.)
0h = –0.2V Scrolled toward top of screen by 32H and top of picture zoomed.
1Fh =
0V
3Fh = +0.2V Scrolled toward bottom of screen by 32H and bottom of picture zoomed.
: Reference pulse jump mode ON/OFF switch (In addition to V-ASPECT control, sawtooth
wave gain control performed for 100% of VBLK interval and 67% of picture interval)
0 = Jump mode OFF
1 = Jump mode ON
On a 4:3 CRT, jump mode expands the sawtooth wave amplitude to 112% with V-
ASPECT; on a 16:9 CRT, jump mode compresses the sawtooth wave amplitude to
75% with V-ASPECT. The V blanking width is expanded at both the top and bottom
of the picture. Blanking for the bottom of the picture starts 251H after VTIM, and
blanking for the top of the picture can be varied as the blanking width after the
reference pulse from the VBLKW register.
– 30 –
SONY [ SONY CORPORATION ]
