4-17
OEP-3 V1 (UC)
4-2. Analog Video Signal Processing Block
4-2-1. Outline
The analog video signal processing block mainly consists of the following two blocks.
1.
Interface block (IF-764 board)
The interface block mounts a relay for THROUGH/EE selection.
All video signals are input and output from and to the external equipment via this block.
2.
Analog video signal processing block (Part of VPR-63 board)
A part of the VPR-63 board consists of an analog video signal processing block.
Moreover, this block can be mainly classified into a video decoder block (that fetches the input video
signal into memory) and video encoder block (that monitors the digital video signal from memory).
I
2
CBUS is almost used for the setting and adjustment of an analog video block. The analog video
block is controlled by the SY-282 board.
The main functions of the analog video signal processing block are as follows:
.
Selection of input signals (composite video, S video, and RGB signals)
.
Conversion of composite video and S video signals into RGB signal (Decoding of video signal)
.
AGC (Automatic Gain Control) for input signal
.
User adjustments (HUE, COLOR, GAIN, OFFSET, MONITOR-RGB, etc.)
.
OSD (On Screen Display) function
.
Selection of monitor output signal (SOURCE/MEMORY)
.
Sync signal processing (NTSC/PAL detection, signal detection, sync separation, and AFC)
.
Conversion of RGB digital signal into composite video and S video signals (Encoding of video signal)
4-2-2. Interface Block (IF-764 Board)
A monitor output signal is switched into THROUGH or EE using this block. By using a mechanical
relay, the monitor output of an input signal can be performed even if the power of this unit is off.
SYNC_IN
B_IN
G_IN
R_IN
SYNC_OUT
B_OUT
G_OUT
R_OUT
S101
RL101
J201
J101
R115
0
CL102
CL101
D102
RD9.1M-T1B
D101
RD9.1M-T1B
FL101
EMI
R101
150
R102
150
CL202
CL201
D116
RD9.1M-T1B
D115
RD9.1M-T1B
FL201
EMI
12
11
10
9
8
7
6
5
4
3
2
1
12
3
1
0
8
7
5
6
1
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
GND
OUT
IN
GND
OUT
IN
Summary of Contents for OEP-3
Page 1: ...COLOR VIDEO PRINTER OEP 3 SERVICE MANUAL Volume 1 1st Edition...
Page 6: ......
Page 80: ......
Page 119: ...4 11 OEP 3 V1 UC Memory Configuration Eight Frame Memory Configuration Four Frame...
Page 154: ......
Page 165: ...5 11 OEP 3 V1 UC 5 5 Direct Chuck Mechanism...
Page 176: ...2000 9 22 OEP 3 UC E 9 955 247 11...