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Related Manuals for RCA L WD250 Series
Summary of Contents for RCA L WD250 Series
- Page 1 Disassembly of the LxxWD250...
- Page 2 Disassembly of the LxxWD250 • Use the following disassembly instructions and you will not need to lay the unit down on it’s front.
- Page 3 Disassembly of the LxxWD250 • Stand unit up right on work table. • Remove all screws mark by an arrow. (8-14 depending on screen size)
- Page 4 Disassembly of the LxxWD250 • Lay unit on back.
- Page 5 Disassembly of the LxxWD250 • Remove screws and base. (4 screws)
- Page 6 Disassembly of the LxxWD250 • From under base mounting plate remove 4 screws that hold mask (screen frame) in place. • DO NOT remove large silver screws!
- Page 7 Disassembly of the LxxWD250 • Grasp bottom center of Mask (screen frame) and gently, slowly lift up and forward.
- Page 8 Disassembly of the LxxWD250 • Disconnect speaker wire connectors. (2 cables) Pay attention to which wire goes to left and right speakers.
- Page 9 Disassembly of the LxxWD250 • Remove 2 screws from each display mount. 2 mounts on the left and the right side of display assembly. (Top right mount shown below)
- Page 10 Disassembly of the LxxWD250 • Remove 2 screws each from the two bottom mounts of screen display assembly. • DO NOT Remove any other screws from unit.
- Page 11 Disassembly of the LxxWD250 • Grasp bottom of display assembly and pull up and forward. Assembly will hinge upwards. • Do not pull up more than 12 to 24 inches. Careful not to pull wires taught. You can pull plugs from connectors!
- Page 12 Disassembly of the LxxWD250 • Using a dowel rod or curtain rod that is 18 to 22 inches in length, ½ inch or larger diameter, prop up display assembly as shown in picture below.
- Page 13 Disassembly of the LxxWD250...
- Page 14 Disassembly of the LxxWD250 Careful not to pull cable too tight else plug will separate from connector!
- Page 16 P810 Alignments Local Upgrades/Applications: Will search for software up Entering the Factory Service mode grades, then initiate the upgrade process. Clear RRT: Clears the Regional Ratings Table. Select OK to Turn the instrument OFF. Then press the Vol - button on the clear the table.
- Page 17 P810 Alignments Brightness Alignment 1. Enter the Factory Service mode. 2. Select VIDEO from the menu, then select Brightness. 3. Insert a pluge test pattern thru RF with a 2% setup background with a 0% and 4% bar. 4. Adjust the Brightness so that the 0% bar is invisible with the 4% bar visible.
- Page 18 P810 BLOCK DIAGRAM L - R D D R F l a s h S D R A M E D I D E D I D E D I D 5 1 2 K b 1 6 M x 1 6 H D M I E E P R O M E E P R O M...
- Page 19 P810 Base Exploded View BRACKET FOOT BASE MACHINE SCREW BASE PANEL SCREW FOOT PAD...
- Page 20 P810 Chassis Exploded View ASM BRACKET SCREW M/C B 4 X 8 LEFT BRACKET SCREW M/C B 4 X 8 RIGHT BRACKET SCREW M/C B 4 X 8 BRACKET SCREW TRIANGLE M/C B 3X8 SCREW TRIANGLE M/C B 3X8 SCREW TRIANGLE M/C B 3X8 POWER BRACKET 14 15 36/37...
- Page 21 P810 Front Cabinet Exploded View SPONGE SCREW S/T B 3 X 8 AB SCREW S/T B 3 X 10 AB SCREW S/T B 3 X 10 AB SCREW S/T B 3 X 10 AB FRONT CABINET INLAY KEY PUSH BUTTON REAR AV COVER LUCENCY BAR SCREW S/T B 3 X 10 AB...
- Page 22 P810 Rear Cabinet Exploded View REAR CABINET MODEL PLATE SCREW S/T B 4 X 15 AB SCREW M/C B 4 X 8...
- Page 23 P810 INTERCONNECT DIAGRAM +12VDD BA001 Main PGND RIGHT BA003 AM & DC Audio Power Interface Board Power +12VDD CON1 SPEAKER Board PGND Board BP600 BP700 LEFT BA004 (WD22/WD250) Board SPEAKER BA002 CON3 5.2V_STBY CON4 AMP_L_IN GND_BTL 1D40 1M46 P-ON AMP_R_IN +24V AGND 1M52...
- Page 24 P810 CONNECTOR LOCATION GUIDE DIAGRAM A u d i o A m p l i f i e r B o a r d P o w e r I n t e r f a c e P o w e r S u p p l y M a i n b o a r d F A V U S B...
- Page 25 Dead Set Start Troubleshooting Measure Pin 3 of CON 2 for +5Vdc. BK001 Suspect Main +5V present? Function DC Voltage SMPS Power Channel + Channel - 0.84 Volume + Volume - Press Pow er Switch, monitor Menu CON 3 Pin 7 for No Key Press Using the chart to the right, verify the correct voltage on...
- Page 26 Video OK Start No Audio With the set Powered On, check BA001 Pin 1 for +12V Voltage Suspect Main present? SMPS Board Check BA002 Pins 1 and 3 for audio signal Signal Suspect Digital present? Board Check BA002 Pins 5 for 0V Pin 6 for-0.2V Check the Sound Voltages...
- Page 27 Sound OK Start No Video With the set Powered On, check 1M03 Pin 1 for +8.5V Pin 3 for +5V All voltages Suspect Digital present? Board Check CON 3 Pins 5/6 for +24V Voltages Suspect Main present? SMPS Board Check signals on 1G50 Signals Suspect Digital...
- Page 28 P810 VOLTAGE CHARTS AV BOARD AUDIO AMP BOARD Page 5-1 Page 5-1...
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Page 29: Lcd Panel
P810 VOLTAGE CHARTS FRONT AV BOARD IR BOARD LCD PANEL KEY BOARD Page 5-2 Page 5-2... - Page 30 P810 VOLTAGE CHARTS MAIN BOARD Page 5-3 Page 5-3...
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Page 31: Power Interface Board
P810 VOLTAGE CHARTS POWER INTERFACE BOARD MAIN SMPS BOARD Page 5-4 Page 5-4... - Page 32 P810 WAVEFORMS BA003 Pin 1 - Audio Amp Board BA004 Pin 1 - Audio Amp Board BV010 Pin 9 - AV Board BV010 Pin 13 - AV Board 1E40 Pin 9 - Main Board 1E40 Pin 13 - Main Board BV010 Pin 14 - AV Board BV020 Pin 10 - AV Board 1G50 Pin 7 - Main Board...
- Page 33 P810 WAVEFORMS 1G50 Pin 13 - Main Board 1G50 Pin 15 - Main Board 1G50 Pin 16 - Main Board 1G50 Pin 18 - Main Board 1G50 Pin 24 - Main Board 1G50 Pin 19 - Main Board 1G50 Pin 21 - Main Board 1G50 Pin 22 - Main Board 1G50 Pin 25 - Main Board CN3 - CN10 Pin 1 LCD Panel...
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