unknown ITC222 free download

File name ITC222align.pdf

ALIGNMENT PROCEDURES Operating Conditions Unless otherwise noted, the following conditions must be observed when aligning the ITC222 chassis: Chassis must be operated from a 120VAC isolation transformer, with line voltage set to 120VAC (±2.0V). Picture controls (black level, contrast, etc.) must be set to factory presets via the Picture Quality menu. Procedures must be performed in the sequence given. A 10X probe must be used for oscilloscope and frequency measurements. The audio output leads must not be shorted together or to ground with the chassis on. All video signals must have -40 IRE sync tips unless specified otherwise. Chassis AC power must be removed for 10 seconds before disconnecting any cable. A 3-minute warm-up is required for chassis or module related alignments. A 15-minute warm-up is required for Kine or Convergence related alignments. Required Test Equipment - Dual-Trace Oscilloscope - Digital Voltmeter - Frequency Counter - Audio Signal Generator - NTSC Signal Generator (B&K 1249, or equivalent) - MTS Signal Generator (B&K 2009, or equivalent) - Sweep/Marker Generator (or Standard Signal Generator) - YPrPb Signal Generator (DVD player w/YPrPb) - DC Power Supply (5.0V/0.25A) for TAG001 - Chipper Check ® software - Chipper Check ® interface box and computer - Personal Computer (IBM Compatible w/ CD ROM and Sound Card) NOTE: For optimum performance it is critical that this instrument be properly aligned. For Auto Convergence to work correctly it is HIGHLY RCOMMENDED that the geometry alignments are first verified Small Signal Board (SSB) Replacement All alignment data is stored in EEPROMs located on the Small Signal Board (SSB). If the SSB needs to be replaced, it is HIGHLY RECOMMENDED the EEPROM data be downloaded by using Chipper Check. Once the SSB has been replaced, upload the alignment data back into the instrument. Then verify that the instrument is properly aligned. 1. Open Chipper Check. Select "Dead Set" "ITC222". Follow the On Screen Instructions to establish a connection. Fill in the Customer Information on the "Customer Info" tab and change to the EEPROM tab. The following menu should appear. ALIGNMENT PROCEDURES (Continued) 2. 3. 4. Wait 10 seconds before trying to enter the Field Service Mode. Press and hold the VOLUME DOWN and CHANNEL DOWN buttons for at least 8 seconds. The instrument will switch on and come up with the field service main menu on the screen. LED will illuminate before the picture comes up. · OK: This button is used to select or deselect a menu item. Main Menu Soft-Ver: Displays the current software version. Runtime Counter: Displays the total runtime in hours and mintues. DVD Soft-Ver: For DVD models only, displays the current software version. Config: Displays the configuration code of the instrument. Each character represents a paraticular hardware feature or option. Serial-No.: Displays the serial number of the instrument. Common features found in the submenus Return: The submenu is closed and

File name ITC222ConvergenceInstructions.pdf

ITC222 Advanced Convergence Attention: Accessing the service manual and changing the settings saved in the EEPROM may compromise the operation of the set. I personally feel that performing advanced convergence is low-risk operation, but I will not guarantee your success. Before changing any video or geometry settings, write down the original settings. All original settings are lost when the new settings are stored. All operations I describe should be considered to be "at your own risk". Instructions on accessing the service menu and performing advanced convergence can be found in the service manual alignment chapter for the ATC222 downloadable from http://home.austin.rr.com/doctorjoe. 1) Download and read the alignment chapter of the service manual from my home page (link above). 2) There are two "native" scan rates for convergence, 480 and 1080. Advanced convergence must be performed independently for both scan rates, 3) The service manual does not state clearly that there is any difference between video source or video input for the advanced convergence procedure for either scan rate. I used a DVD via component video for 480 mode and 1080i via DVI for 1080 mode. 4) Tune the video signal for the scan rate you are converging. Let the set warm up for 20 minutes. 5) Turn off the set and boot into the service menu. Wait 10 seconds, then hold down the Channel Down and Volume Down buttons on the front of the TV. Hold for 8 seconds. The set will boot into the service menu (figure 1) Figure 1: Service menu initial directory. 6) Use the remote control (make sure the remote is in "TV" mode; but don't change the input you tuned!) arrow keys to select "convergence" and press the OK button. Joseph Shovlin [email protected] 1/16/06 7) You should now see the main convergence menu (Figure 2). Note that the scan rate the set is in is indicated in the upper right hand corner of the menu (in figure 2, it says "1080"). Figure 2: Main convergence menu. 8) Use the arrows on the remote and select "Level 1 (3x3)". Press the OK button. 9) An instruction screen loads (Figure 3). Read the instructions: Press `OK' to move from alignment screen to screen. Press 2 to move from point to point. Use the arrow keys to adjust. Press `clear' to exit the convergence grids back to this menu. Figure 3: Level 1 Alignment instructions menu 10) Press `OK'. This brings up the red/green grid. Adjust each of the points so that the red line is hidden behind the green: red + green = yellow. The adjustment point is a plus sign ­ adjust both horizontal and vertical lines in the `+' so you see no red (Figure 4). Use the `2' button to move from point to point ­ it may take several passes over each point to remove all the red. Joseph Shovlin 1/16/06 [email protected] Figure 4: 5x5 Convergence Grid Screen. Adjustment point is circled. Use the remote arrow keys to make any red disappear from the horizontal line of the plus sign (up and down arrows) and the vertical line of the plus sign

File name ITC222FocusInstructions.pdf

ITC222 Focus Instructions Attention: Disassembling the set and accessing the service manual may compromise the operation of the set. I personally feel these are relatively low-risk operations, but I will not guarantee your success. All operations I describe should be considered to be "at your own risk". Instructions on accessing the service menu and performing advanced convergence can be found in the service manual alignment chapter for the ATC222 downloadable from http://home.austin.rr.com/doctorjoe 1) Pull off the screen over the speakers. It "pops" right out. 2) Remove the panel with the power, channel +/-, volume +/- buttons. There are two screws (T-20 Torx heads; a standard Allen wrench will work in a pinch) on the back of the set and seven screws across the bottom. See Figure 1. This exposes the lens assembly's. 3) Remove the hatch between the two speakers. There are four screws holding it on. See Figure 1. This exposes the electronic focus controls. These 2 Screws in back Remove This Panel (Do Not Disconnect Cables) These 2 Screws in back Remove This Panel Speaker Screen "pops" Off Figure 1: D56W20 with speaker screen removed. Remove the circled screws to release the two panels. Do not disconnect the cables to the power/channel/volume panel 4) Turn the set on and let it warm up for 15 minutes. Set contrast to maximum. Joseph Shovlin [email protected] 1 12/8/2006 5) Boot into the service menu. The service manual does not say what mode (480 or 1080) to be in. Presumably more resolution is better so I used 1080 mode. (see service manual alignment chapter for details.) 6) Enter the convergence submenu and bring up the 13x15 red/green convergence grid (see service manual alignment chapter for details). 7) Figure 2 shows the recess with the lens assemblies which is exposed when you remove the power/channel/volume panel. Use a soft cloth to dust off the lenses. Cover the red CRT with a cloth/towel. Red CRT Green CRT Blue CRT This panel hides the CRT boards and electronic focus controls Figure 2: Recess exposed when power/channel/volume panel is removed. Wing nuts for manual focusing are circled in red. 8) Use a small flathead screwdriver to adjust the electronic focus for the sharpest line in the center of the screen. See Figure 3. 9) If the focus is not acceptable, then loosen the wing nut on the lens assembly as shown in figure 2, and rotate the assembly for a better focus. Then repeat step 8. 10) Move the towel over the green CRT and repeat steps 8-9 for the red CRT. 11) Use the remote to switch from the red/green convergence grid to the blue/green grid. Repeat steps 8-9 for the blue CRT. 12) Turn the power off and reassemble the TV set. 13) Run full 3x3, 5x5, and 13x15 convergence on the set for 480 and 1080 (see service manual alignment chapter for details). Joseph Shovlin [email protected] 2 12/8/2006 Figure 3: Recess exposed when the lower center panel is removed. Allows access to the CRT Kine socket boards and to th