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PROJECTION TV RECEIVER Chassis : P55A(N) REV.1 Model : HCN4226WX/XAA HCN4226W3S/XAA ST54T8PCS/XAX HCN4727W5S/XAA PROJECTION TV RECEIVER C O N T E N T S Precautions Reference Information Specifications Alignment and Adjustments Troubleshooting Exploded View and Parts List Electric Parts List Block Diagrams Wiring Diagram Schematic Diagrams...
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Follow these safety, servicing and ESD precautions to prevent damage and protect against potential hazards such as electrical shock and X-rays. 1. Be sure that all of the built-in protective devices are replaced. Restore any missing protective shields. 2. When reinstalling the chassis and its assemblies, be sure to restore all protective devices, including: nonmetallic control knobs and compartment covers.
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9. High voltage is maintained within specified 15. Observe the original lead dress, especially limits by close-tolerance, safety-related near the following areas: Antenna wiring, components and adjustments. If the high sharp edges, and especially the AC and high voltage exceeds the specified limits, check voltage power supplies.
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6. Insulation Checking Procedure: Disconnect the 1. Servicing precautions are printed on the power cord from the AC source and turn the cabinet. Follow them. power switch ON. Connect an insulation resistance meter (500V) to the blades of the AC 2.
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1. Some semiconductor (“solid state”) devices 5. Use only a grounded-tip soldering iron when are easily damaged by static electricity. Such soldering or unsoldering ESDs. components are called Electrostatically Sensitive Devices (ESDs); examples include 6. Use only an anti-static solder removal device. integrated circuits and some field-effect Many solder removal devices are not rated as transistors.
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Most large-screen video display devices that are using CRT (including CDT) usually apply the Dynamic Focus (hereinafter D/F) circuit. As CRT has non-spherical surface (perfect spherical surface = 1, non-spherical surface R>1), the distance that the electron beam emitted from the electron gun reaches to the center of CRT is different from the one that the electron beam reaches to the corners.
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1. Turn on the TV, and then select “STANDARD”on the picture adjustment mode. 2. Turn off the TV (STAND-BY). 3. Enter the service mode by pressing the remote control keys in the following sequence : Note : If necessary, re-do steps 1~3. Initial display when the service mode is switched.
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DVI connection item is corresponded to DVI application model.
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2. In the stand-by mode, press the remote-control keys in the following sequence : 1. Warm up the TV for at least 30 minutes. 2. Select the “ STANDARD” Video mode. 3. Select SBT by pressing the Volume keys. 3. Turn to the Video Mode (No Signal) using a 4.
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Note : The F.S. Circuit check must be performed after servicing. 1. Do this adjustment after the static focus 1. Turn on the TV. adjustment and the tilt adjustment. 2. Select the “STANDARD” video mode. 2. Select the “STANDARD” video mode. (Contrast:100, Brightness:50) 3.
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1. Select the “STANDARD” video mode. 2. Warm up the set at least for 10 minutes. 3. Enter the Convergence mode by pressing the remote control buttons in the following sequence 4. Set the Beam Alignment Adjustment CY to Zero magnetic field area. 5.
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3. PWM IC OSC Sync Lock A PWM type IC needs sync lock for PWM pulse For the existing high voltage REG circuit (input and horizontal scan line. voltage variation type), a dynamic REG response The standard time constant of OSC circuit is is not provided.
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5. Output Circuit about 1V. A PWM modulation type REG detects static, dynamic high voltage fluctuation for only The voltages, which are detected form an error Ton Time (when the current of the output TR detection circuit of PWM IC (Differential AMP) collector flows) each 1H, and modulates the and Dead Time, each is applied to PWM width of PWM pulse.
1. R-SELECT Press to select RED color. 2. G-SELECT Press to select GREEN color. 3. B-SELECT Press to select BLUE color. 4. R-MUTE Press to mute RED color. 5. G-MUTE Press to mute GREEN color. 6. B-MUTE Press to mute BLUE color. 7.
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14. MOVE CURSOR FORWARD Press to move the cursor right or down. 15. MOVE CURSOR REVERSE Press to move the cursor left or up. 16. CONVERGENCE PICTURE MOVE BUTTON 17. CONVERGENCE MOVE BUTTON Press to move the convergence left ( ) or right ( 18.
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20. Move Convergence Pattern P55A Service Manual After pressing the R.surf button, use the Channel Up/Down and Volume +/- buttons to move the Convergence Pattern up/down/left/right. 21. Convergence Pattern Tilt Control Button After pressing the ANT A/B button, use the Channel Up/Down and Volume +/- buttons to create a tilt to the Convergence Pattern.
Special Notes ✏ A sensor is attached on the center of each side of the Convergence Mode pattern (see figure below). The sensors are required for normal Perfect Focus function. ✏ Use a screen jig to do the convergence adjustments correctly (Especially, perform correct convergence adjustments on the center of each side where a sensor is located.) ✏...
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4. To adjust GREEN, first press the and the keys, and then press the key. Press to move the cursor right or down. 5. The key moves the cursor horizontally or vertically. When the key is pressed once again, the cursor moves horizontally. 6.
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7. Use the key for overall balance. 8. After the Line Shift is cancelled by pressing the key, use the Channel and Volume keys (Up/Down)to make big adjustments.
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9. After the green convergence adjustments are completed, press the key to save the data. 10. Superimpose the Red and Green colors by pessing the and the keys. 11. To adjust RED, redo steps 5~7. When the cursor moves vertically 12.
15. After the color adjustments are completed, pree the ( ) key to save the data. The corser moves to center, and then automatically moves up and to the left about five seconds later. 1. After the adjustment is completely saved, press the perfecr Focus key to perform Auto Convergence (Factory Mode).
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2. After the Convergence Adjustments are completde, press the key to exit. 3. DTV Convergence adjustment must be done same as the above Normal Mode Convergence Adjustment (Use a 16 : 9 screen jig for DTV) When Convergence Adjustment is not normally done or the convergence center is misaligned with the sensing point, any adjustment error happens.
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Abnomal Check the input Nomal voltage of main CNZ02 and sub CN803 Check the voltage of CNZ03 Check the output from on the CG-AMP board and CG-MDL and FD855S, the waveform of CNZ01 FD802S on the SUB PCB Nomal Abnomal Check FD101S,FD102S Check connectors MAIN ↔...
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Check the output Abnomal Nomal volume level of MAIN CN601 Check SPEAKER Check the input/output circuits of IC601 Abnomal Nomal Check ICD603 Check the circuits related to IC601 Abnomal Nomal Check IC602 Check the circuits related to IC601 Abnomal Nomal Check IC605 Check the circuits related to IC602...
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Check the operating status of remote control and POWER S/W Check the input voltage of PWE CORD Check the remote control and CONTROL ASSY Check the input voltage Check the Standby voltage of ICS802 Check the input Check the circuits inside D/W-MDL Check IC831,PC801S Check MICOM VCC voltage/waveform of...
Electrical Parts List You can search for the updated part code through ITSELF web site. URL : http://itself.sec.samsung.co.kr 7. Electrical Parts List 7-1 HCN4226WX/XAA Loc. No. Code No. Description ; Specification Remark Loc. No. Code No. Description ; Specification Remark ASSY COVER FRONT ...3 T0081...
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Electrical Parts List You can search for the updated part code through ITSELF web site. URL : http://itself.sec.samsung.co.kr 7-2 HCN4226W3S/XAA Loc. No. Code No. Description ; Specification Remark Loc. No. Code No. Description ; Specification Remark ASSY SKD PART ...3 T0081 6003-001019 SCREW-TAPTITE;RH,+,B,M4,L12,ZPC(BLK),SWR...
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Electrical Parts List You can search for the updated part code through ITSELF web site. URL : http://itself.sec.samsung.co.kr 7-3 ST54T8PCS/XAX Loc. No. Code No. Description ; Specification Remark Loc. No. Code No. Description ; Specification Remark ASSY SKD PART ...3 AA61-20129A HOLDER-WIRE;-,NYLON-66,-,-,-,NTR,DAFC-25...
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Electrical Parts List You can search for the updated part code through ITSELF web site. URL : http://itself.sec.samsung.co.kr 7-4 HCN4727W5S/XAA Loc. No. Code No. Description ; Specification Remark Loc. No. Code No. Description ; Specification Remark ASSY SKD PART ...3 BP61-00075A HOLDER-JERSEY,ASSY;W3,ABS V0,GRAY,63-000...