Hughes Jvc 220 Projector Service Manual

Chapter 6---Parts List 
6-2   Series 220 Service Manual 
 
Power Cord, 220 VAC 103939 
Power Supply, Arc Lamp 104114 
Power Supply, High Voltage 102566 
Power Supply, Low Voltage 102520 
Prism Assembly 103942 
Projection Lens, 1.5:1 Fixed 104003 
Projection Lens, Zoom (2.6 to 5.1:1) 103746 
Remote Control, Standard 104348 
Remote Control, Technician 104019 
Shipping Case, Hardigg 101617 
Yoke Assembly, CRT 103467 
  

  Import/Export 
Model 220 Configuration Data Export / Import Procedure 
 
Rev 1.0.0 
 
This appendix defines the steps to perform a Configuration Data Export & Import from the Model 220 
projector to a Host Computer. The Host Computer can be any system that has RS232 download and upload 
capability, including an IBM-PC compatible, an Apple MacIntosh, or a UNIX system. This paper describes 
the procedures for an IBM-PC running the Windows 3.1 OS. We will use the Windows “TERMINAL” 
application for...

Import/Export   
4.3. Select OK with mouse or press Enter key (dialog will be removed) 
 
4.4. Verify TERMINAL screen shows status line at bottom:  
 Stop,  Pause, Bytes: 0,  Receiving: EXPORT1.TXT 
 
5. Model 220 Menu: 
 
 Press ENTER key to start export download. NOTE: Some VT100 Emulator programs (ProComm) 
will send the ENTER automatically when step 4.3 above is performed. Expect 10 minutes to 
export 20 sources (500,000 bytes) at 9600 baud). 
 
 Data Transfer will begin and continue until all...

  Import/Export 
2. Import will alter all projector setup data.  Prior to starting, several warnings are displayed to 
prevent unintentional loss of setup data. 
 
3. Model 220 Menu:   7. System + 5. Maintenance + 6. Import 
 ================================= 
 |      WARNING   
 |  Importing New Configuration  | 
 |  ALL SETUP DATA WILL BE  
|  CHANGED!                     | 
 |            |                    
 |       to Continue      | 
 |       < ESC> to Cancel        |...

Import/Export   
A-4  Model 220  Service Manual 
 |                               | 
 | - Press ESC to Continue       | 
 ================================= 
  
 Press ESC to exit the projector Import operation and return to the Maintenance Menu. There is a 
10 second pause before the screen is redrawn. 
  
8.  USER ABORT: 
   
 Windows TERMINAL:  FIRST press STOP to end the Host Upload transfer. 
   
 Model 220 Menu:  THEN press ESC  to abort the projector Import operation....

Glossary 
   Glossary Of Terms 
Amorphous Without definite form; not crystallized. 
Arc Lamp The xenon arc lamp in the Model 220 projector. It 
operates at high temperatures (160° to 200°) and 
produces dangerously intensive light with 
hazardous levels of ultraviolet and infrared 
radiation. 
Aspect Ratio The ratio of the picture width to picture height. 
The standard U.S. television aspect ratio is four 
units wide to three units high (4:3). High Definition 
Television (HDTV) is 16:9. 
Bandwidth The...

Glossary 
a total of 525 scanning lines in NTSC 
transmission.  
Horizontal Scan Reverses the image projection for front or rear  
Reversal Jumper projection. Located on the Horizontal Deflection 
Board. 
Horizontal Size Coils Adjusting coils on the Scan Reversal Board. Used 
to adjust the horizontal size (width). 
Hot Spot The Arc Lamp’s brightest area on the screen. 
Used to align and focus the Arc Lamp. 
Hue Also referred to as tint.  A specific color such a 
blue, pink or aqua.  Hue or tint control...

Glossary 
Luminance Abbreviated as Y.  The portion of the signal that 
contains the black and white information, which 
affects brightness. 
Noise An undesirable electrical interference of a signal.  
Overscanning Displaying less than the complete area of an 
image to a viewer (i.e., scanning beyond the 
visible area).  All TV sets are overscanned at 
least slightly, so that viewers do not see blanking. 
Raster The area illuminated by the scan lines on a CRT. 
Resolution The degree of sharpness of a...

Glossary 
Saturated Color 1)  A color as far from white, black or gray as it 
can be (i.e., vermilion rather than pink).  2)  A 
display misadjustment that results in unnaturally 
bright colors. 
Scan To scan is to move across a picture frame a line 
at a time, either to detect the image, as in an 
analog or digital camera, or to refresh a CRT-
based video screen. 
Scan Line One of many horizontal lines in a graphics frame. 
Scan Rate The frequency of line scanning for a monitor or 
projector....

Glossary 
Model 220 Service Manual  B-5