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ASTRO SC-2054-A Instruction Manual

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Line Doublers
SC-2054-A, SC-2054-S,
SC-2054-T, SC-2054-D
Instruction Manual
March 19, 2004
Ver.1.00
ASTRODESIGN, INC.

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  • Page 1 Line Doublers SC-2054-A, SC-2054-S, SC-2054-T, SC-2054-D Instruction Manual March 19, 2004 Ver.1.00 ASTRODESIGN, INC.
  • Page 2 CONTENTS INTRODUCTION ･････････････････････････････････････････････････････････････ SAFETY PRECAUTIONS ･･････････････････････････････････････････････････････ ････････････････････････････････････････････････ Concerning the SC-2054-A/S/T/D Introduction ･･････････････････････････････････････････････････････････････ Features ･････････････････････････････････････････････････････････････････ 1.2.1 "astrosnap" I/P conversion function ････････････････････････････････････ 1.2.2 2-3/2-2 pull-down function ･･･････････････････････････････････････････ 1.2.3 3-dimensional Y/C separation function ･･････････････････････････････････ 1.2.4 10-bit processing ･･･････････････････････････････････････････････････ 1.2.5 Oversampling output (54 MHz) ･･･････････････････････････････････････...
  • Page 3 4. Main specifications ･･････････････････････････････････････････････････････････ Input video signals ････････････････････････････････････････････････････････ External reference input signal ･･････････････････････････････････････････････ Output signals ･･･････････････････････････････････････････････････････････ General specifications ･････････････････････････････････････････････････････ Accessories ･････････････････････････････････････････････････････････････ ･････････････････････････････････････････････････････････････ Outline drawings ･･･････････････････････････････････････････････････････････････････ Appendix Definitions of terms used ･･･････････････････････････････････････････････････ 6.1.1 "astrosnap" ･･･････････････････････････････････････････････････････ 6.1.2 ････････････････････････････････････････････････････････････ 6.1.3 Component ･･････････････････････････････････････････････････････ 6.1.4 Interlaced ････････････････････････････････････････････････････････...
  • Page 4 Thank you very much for purchasing this model SC-2054-A, S, T or D line doubler. This manual contains descriptions of the functions provided by the SC-2054-A, S, T or D as well as the operation procedures, checkpoints and precautions to be observed.
  • Page 5 CAUTION Concerning the power supply and grounding Use a supply voltage within the range of AC 100V-240V for this line doubler. The line doubler is grounded through a 3-wire type of power cable with a grounding line. To ensure safe operation, be absolutely sure to connect the power cable to a power outlet that is equipped with a grounding terminal for protection.
  • Page 6 1.1 Introduction Using Astro's original high-accuracy I/P conversion technology called "astrosnap" (which is short for Astro SuperNatural motion Picture), this line doubler makes it possible to convert NTSC or PAL system standard composite video signals, Y/C video signals, YCbCr component signals (SC-2054-A/T) and SD-SDI serial signals (SC-2504-S/D) into double-speed progressive RGB signals and DVI digital signals (SC-2504-T/D).
  • Page 7 White level adjustment function White balance adjustment function Enhance adjustment function Hue adjustment function Color adjustment function Noise reduction adjustment function 1.3 Parts and their functions Main unit/front panel Same for all models (SC-2054-A/S/T/D) LINE DOUBLER SC-2054 OPE. LOCK PUSH ENTER Part Description Display The default display appears when the main unit is started up.
  • Page 8 S-2054 Instruction Manual Main unit/rear panel SC-2054-A AC IN(100-240V) ANALOG INPUT REF. ANALOG OUTPUT (10) SC-2054-S AC IN(100-240V) SD SDI MONITOR OUT SD SDI INPUT REF. ANALOG OUTPUT (11) (13) (12) SC-2054-T AC IN(100-240V) ANALOG INPUT REF. DIGITAL OUTPUT SC-2054-D...
  • Page 9 B video output B video output connector. (BNC connector) (SC-2054-A/S only) connector HS output connector HS sync signal output connector. (BNC connector) (SC-2054-A/S only) VS output connector VS sync signal output connector. (BNC connector) (SC-2054-A/S only) Digital output TMDS video signal output connector. (DVI-I connector, 29 pins)
  • Page 10 2. Connections with peripherals units 2.1 Connecting the input signals As shown in the figures below, connect the output signals (YCbCr, Y/C, composite, SD SDI) of the VTR, DVD player or other unit to the SC-2054's input connectors. SC-2054-A/T DEGITA L  DVD or...
  • Page 11 (RGB/HS/VS, DVI) in a manner which meets the input conditions of the peripheral connectors. * Depending on the specifications of the display unit, some output signals may not be displayed. Check these specifications before proceeding with the connections. SC-2054-A/S MAMA Projector HS VS Connect these connectors to the R ...
  • Page 12 Values in parentheses are used by models with settings in 2-dot increments. *1: These timing designations can also be used by the SD-2054-A/S. Use them for a model in which the SC-2054-A/S output video timing value designations listed above cannot be set.
  • Page 13 S-2054 Instruction Manual 3. Operation methods 3.1 What appears on the display When the unit is started up, the following settings and other statuses appear on the front display. (Default screen) Input signals Input channel LINE DOUBLER SC-2054 COMPOSITE : NTSC-M OPE.
  • Page 14 S-2054 Instruction Manual VIDEO 3.2 Menu operation methods The shuttle button is tilted in the up, down, left and right directions, rotated or pushed to perform menu operations. LINEDOUBLERSC-2054 LINEDOUBLERSC-2054 OPE. OPE. LOCK LOCK PUSH PUSH ENTER ENTER Tilting the button in the up, down, Turning and pushing the button left and right directions (1) How to select the setting items...
  • Page 15 Setting item Setting INPUT CHANNEL YCbCr Refer to "3.3.1 Setting the input channel." (Input connector selection) (SC-2054-A/T only) COMPOSITE DVI LEVEL 0-255 Refer to "3.3.2 Setting the DVI output level." (SC-2054-T/D only) (DVI output level setting) 16-235 PULLDOWN MODE...
  • Page 16 S-2054 Instruction Manual NOISE REDUCTION 0 to 15 Refer to "3.3.4 Adjusting the image quality." (Noise filter adjustment) TRIMMING H 0 to 99 Refer to "3.3.5 Setting the output trimming." (Output image outline adjustment) TRIMMING V 0 to 99 Refer to "3.3.5 Setting the output trimming." (Output image outline adjustment) REF LOCK...
  • Page 17 Component video signal input connector YCbCr (BNC connector) INPUT CHANNEL Y/C video signal (S-VIDEO) input connector (S connector) (SC-2054-A/T only) Composite video signal (VIDEO) input COMPOSITE connector (BNC connector) * Check whether the video signals have been connected to the selected input channel. 3.3.2 Setting the DVI output level The dynamic range of the DVI digital output can be changed.
  • Page 18 S-2054 Instruction Manual 3.3.3 Setting the pull-down mode The SC-2054 can automatically identify the 24- or 30-frame video data of film images, computer graphics images, etc. (if AUTO is set) and reproduce the optimum progressive images. Setting item Setting Remarks The pull-down system matching the video sources is automatically identified AUTO...
  • Page 19 S-2054 Instruction Manual 3.3.4 Adjusting the image quality The following image quality adjustments can be conducted on the SC-2054. Perform them in such a way that the optimum image quality is achieved for the images displayed. Adjustment item Type of adjustment Setting Remarks ENHANCE...
  • Page 20 S-2054 Instruction Manual 3.3.5 Setting the output trimming The output image display period can be adjusted on the SC-2054. Setting item Setting Remarks Both the left and right ends of the images TRIMMING H 0 to 99 are masked on the display. The top and bottom of the images are TRIMMING V 0 to 99...
  • Page 21 S-2054 Instruction Manual 3.3.6 Setting the external reference input Using the sync signal supplied to the external reference connector as the reference, the SC-2054 enables output video signals matching the vertical frequency of the input signal to be obtained. When the external reference connector is used, the sync signal corresponding to the input signal must be selected from the table below.
  • Page 22 S-2054 Instruction Manual * When the REF LOCK item is selected, the horizontal frequency and vertical frequency of the signal supplied to the external reference input connector as well as the timing designations (recommended timing designations) which can be set are displayed by pressing the ENTER key. REF LOCK UXGA@60Hz Search Timing :...
  • Page 23 S-2054 Instruction Manual 3.3.8 Setting the display tube brightness level The brightness level of the display tube can be set by the SC-2054. Setting item Setting Remarks The brightness level of the display is reduced to 25% if no key operations have been performed for 3 minutes.
  • Page 24 WHITE LEVEL OPERATION LOCK WHITE BALANCE R 100% *1: SC-2054-A/T only *2: SC-2054-T/D only 3.3.10 Setting the operation lock The SC-2054 allows menu operations to be enabled (unlocked) or disabled (locked). Set the operation lock to ON to ensure that no unintentional changes will be made to the settings.
  • Page 25 4. Main specifications [General specifications of SC-2054 series models] The table below shows how the specifications are configured for each model (A/S/T/D) in the SC-2054 series. For further details, refer to the respective items. Item SC-2054-A SC-2054-S SC-2054-T SC-2054-D Composite input "4.1(1) Composite input signals"...
  • Page 26 S-2054 Instruction Manual (3) Component input signals Item Specification Scanning system 720 × 480/59.94i/720 × 576/50i (automatically switched) Y signal: 0.7Vp-p/75Ω Signal system Component signals CBCR signal: 0.7Vp-p/75Ω Sync signal YonSYNC 0.3Vp-p/75Ω Connector BNC connectors × 3, 1 system A/D conversion 4fsc frequency Resolution...
  • Page 27 S-2054 Instruction Manual 4.3 Output signals (1) Analog output signals Item Specification Scanning system 720 × 480/59.94P/720 × 576/50P (automatically switched) Horizontal 31.47KHz/31.25KHz (*1) frequency Vertical 59.94Hz/50.00Hz (*1) frequency D/A conversion 54.0MHz frequency Resolution 10bit Video signals, 0.7Vp-p/75Ω (negative polarity) Sync signal (negative polarity) BNC connectors...
  • Page 28 S-2054 Instruction Manual 4.4 General specifications Item Specification Effective power Power Apparent power 17VA Power factor 0.91 TYP Power AC100-120, 200-240V (50/60Hz) requirements Operating temperature (no condensation) 5 to 40°C range Operating (no condensation) 30 to 80%RH humidity range Half rack size Dimensions (excluding protrusions) 210 (W) ×...
  • Page 29 S-2054 Instruction Manual 5. Outline drawings SC-2054-A AC IN(100-240V) ANALOG INPUT REF. ANALOG OUTPUT MODEL ; SER.No ; MADE IN JAPAN 4-M4, also on opposite panel 4-M4 対面共 LINE DOUBLER SC-2054 OPE. OPE. LOCK LOCK PUSH ENTER SC-2054-S AC IN(100-240V)
  • Page 30 S-2054 Instruction Manual SC-2054-T AC IN(100-240V) ANALOG INPUT REF. DIGITAL OUTPUT MODEL ; SER.No ; MADE IN JAPAN 4-M4, also on opposite panel 4-M4 対面共 LINE DOUBLER SC-2054 OPE. OPE. LOCK LOCK PUSH ENTER SC-2054-D AC IN(100-240V) SD SDI MONITOR OUT SD SDI INPUT REF.
  • Page 31 6.1 Definitions of terms used 6.1.1 "astrosnap" The term "astrosnap" (which stands for Astro SuperNatural motion Picture) is a high-accuracy I/P (interlaced/progressive) conversion technology developed by ASTRODESIGN. With the interlaced signals of the NTSC, PAL, HDTV and other systems, the...
  • Page 32 S-2054 Instruction Manual 6.1.5 Progressive With the progressive system, on the other hand, images are rendered by a single scan. Unlike interlaced images, progressive scanning can achieve a rate of 60 frames per second for 525 lines, and so it is able to maintain a high image quality even when images are displayed on a large screen.
  • Page 33 S-2054 Instruction Manual (2) Contrast Using white as the reference, this pattern consists of 8 successive steps to represent decreasing levels of brightness. It is used to adjust the white level of display systems in such a way that the boundary between brightness levels 1 and 2 shown in the figure below is perceptible.
  • Page 34 S-2054 Instruction Manual (5) Crosshatch This signal pattern is used to check for image distortion in display systems. Horizontal and vertical lines are drawn at equal intervals, and they show how the patterns appear. The trapezoidal distortion and other forms of distortion in display systems are adjusted in such a way that the shapes of the squares appear uniform.
  • Page 35 S-2054 Instruction Manual (7) Frame The outer frame of the effective display period of the SC-2054 is displayed with one pixel and one line in this pattern. It is used to adjust the display position in such a way that the entire frame appears on the screen. * With some display units, the outer frame may not fit neatly within the confines of the screen.
  • Page 36 S-2054 Instruction Manual 6.1.8 Timing table In order for images to be rendered properly on a video display device, it is necessary to provide the horizontal sync (HS) signal for measuring the timing in the horizontal direction and the vertical sync (VS) signal for measuring the timing in the vertical direction.
  • Page 37 S-2054 Instruction Manual Signal/parameter (unit) Description HS signal Horizontal sync signal (negative logic) VS signal Vertical sync signal (negative logic) Clock (Hz) Clock frequency for configuring the video signals Hperiod (dot) Horizontal sync period; indicated as a number of clock pulses *1 (in dots). Horizontal effective video period;...
  • Page 38 NOTICE An incorrectly collated manual or a manual with missing pages will be replaced. All copyrights pertaining to this product are the property of Astrodesign. This manual may not be used or copied in whole or in part without permission. The contents of this manual are subject to change without prior notice due to improvements.

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