Problem: The desired Input Aspect Ratio cannot be selected.
•Solution 1: The IN1403 can only scale up. Increase the output resolution until the desired aspect ratio is available.
•Solution 2: Manually decrease the image size by using the output menu.
•Solution 3: Select a different available aspect ratio.
Problem: The output size will not decrease.
•Solution: The IN1403 can only scale up. Increase the output resolution, and then reduce the size of the output image.
Specifications
Video input
Number/signal type  | 3   | 
Connectors  | |
  | Composite video: 3 female BNC, RGB pass through:   | 
Nominal level  | 1V   | 
  | 0.3   | 
Minimum/maximum levels  | Analog: 0.0 V to 1.0 V   | 
Impedance  | 75 ohms  | 
Return loss  | |
DC offset (max. allowable)  | 1.5 V  | 
Video processing
Decoder  | 8 bit digital  | 
Digital sampling  | 24 bit, 8 bits per color; 13.5 MHz standard  | 
Colors  | 16.78 million  | 
Video output
Number/signal type  | 1 scaled RGBHV, RGBS, or RGsB, 1 buffered output  | 
Connectors  | 1 female   | 
Nominal level  | 0.7   | 
Minimum/maximum levels  | 0.0 V to 0.7   | 
Impedance  | 75 ohms  | 
Scaled resolution  | 640 x 480, 800 x 600, 852 x 480, 1024 x 768, 1152 x 864, 1280 x 720  | 
  | (HDTV 720p), 1280 x 768, 1280 x 1024, 1365 x 768, 1365 x 1024  | 
Sync
Output type  | RGBHV, RGBS, RGsB  | 
Standards  | NTSC 3.58, NTSC 4.43, PAL, SECAM  | 
Output level  | TTL: 5.0V   | 
Output impedance  | 75 ohms  | 
Polarity  | Positive or negative (selectable)  | 
Control/remote — scaler
Serial control port  | |
Baud rate and protocol  | 1200 to 38400 baud, 8 data bits, 1 stop bit, no parity  | 
Serial control pin configurations  | 1 = TX, 2 = GND, 3 = RX  | 
Program control  | Extron Control Software  | 
General
Power  | 100VAC to 240VAC, 50/60 Hz, 20 watts, internal, autoswitchable  | 
Temperature/humidity  | Storage   | 
  | Operating +32° to +122°F (0° to +50°C) / 10% to 90%, noncondensing  | 
26  | IN1403 User’s Manual |