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CFTD2052 SERVICE MANUAL LCD COLOR TELEVISION/DVD VIDEO PLAYER ORIGINAL MFR'S VERSION A Design and specifications are subject to change without notice.
CAUTION THIS LCD COLOR TELEVISION EMPLOYS A LASER SYSTEM. TO ENSURE PROPER USE OF THIS PRODUCT, PLEASE READ THIS SERVICE MANUAL CARE- FULLY AND RETAIN FOR FUTURE REFERENCE. SHOULD THE UNIT REQUIRE MAINTENANCE, CONTACT AN AUTHORIZED SERVICE LOCATION-SEE SERVICE PROCEDURE. USE OF CONTROLS, ADJUSTMENTS OR THE PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
SERVICING NOTICES ON CHECKING 1. KEEP THE NOTICES 6. AVOID AN X-RAY As for the places which need special attentions, Safety is secured against an X-ray by consider- they are indicated with the labels or seals on the ing about the cathode-ray tube and the high cabinet, chassis and parts.
IMPORTANT SAFEGUARDS READ INSTRUCTIONS All the safety and operating instructions should be read before the unit is operated. RETAIN INSTRUCTIONS The safety and operating instructions should be retained for future reference. HEED WARNINGS All warnings on the unit and in the operating instructions should be adhered to. FOLLOW INSTRUCTIONS All operating and use instructions should be followed.
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IMPORTANT SAFEGUARDS (CONTINUED) OUTDOOR ANTENNA GROUNDING If an outside antenna or cable system is connected to the unit, be sure the antenna or cable system is grounded so as to provide some protection against voltage surges and built-up static charges. Section 810 of the National Electrical Code, ANSI/NFPA 70, provides information with respect to proper grounding of the mast and support- ing structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna discharge unit, connection to grounding electrodes, and requirements for the grounding electrode.
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EXAMPLE OF ANTENNA GROUNDING AS PER THE NATIONAL ELECTRICAL CODE ANTENNA LEAD IN WIRE GROUND CLAMP ANTENNA DISCHARGE UNIT (NEC SECTION 810-20) ELECTRIC SERVICE EQUIPMENT GROUNDING CONDUCTORS (NEC SECTION 810-21) GROUND CLAMPS POWER SERVICE GROUNDING NEC-NATIONAL ELECTRICAL CODE ELECTRODE SYSTEM (NEC ART 250, PART H) S2898A A1-5...
DISC REMOVAL METHOD AT NO POWER SUPPLY Remove the Back Cabinet. (Refer to item 1 of the DISASSEMBLY INSTRUCTIONS.) Slide the Rack Loading toward the arrow direction by hand to release the lock. (Refer to Fig. 1) Take out the Disc from the DVD Deck. Be careful not to scratch on the Disc. DVD Deck Rack Loading Fig.
CONTENTS A1-1 CAUTION ........................... A1-2 SERVICING NOTICE ON CHECKING ..................A1-2 HOW TO ORDER PART ......................A1-3~A1-5 IMPORTANT SAFEGUARDS ....................A1-6 DISC REMOVAL METHOD AT NO POWER SUPPLY ............A1-6 PARENTAL CONTROL - RATING LEVEL ................A2-1 CONTENTS ..........................A3-1~A3-6 GENERAL SPECIFICATIONS ....................
GENERAL SPECIFICATIONS LCD Size / Visual Size 20.1 inch / 510.0mmV System LCD Type Color TFT LCD Number of Pixels 640(H) x 480(V) View Range Left/Right 80/80 degree Up/Down 70/70 degree Color System NTSC Speaker 2 Speaker Position Front Size 1.8 x 3.9 inch Impedance 16 ohm...
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GENERAL SPECIFICATIONS Safety Circuit IC Protector(Micro Fuse) Regulation Safety Radiation Laser DHHS Temperature Operation C ~ +40 Storage C ~ +60 Operating Humidity Less than 80% RH On Screen Menu(TV) Display Menu Type Icon TV Setup Picture Audio Picture Preference Color Temperature Auto Dimmer CH Tuning...
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GENERAL SPECIFICATIONS Rating Level Other OSD Language(Set up Language) Output(RGB/Composite) Eject No disc Reading Play Still/Pause Stop Prohibit Mark Step Skip(>>|) Skip(|<<) Random Yes (CD,MP3) Repeat Slow+ Slow- Search+ Search- Jump Resume Title No. Chapter No. Track No. Time Subtitle No. Angle No.
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GENERAL SPECIFICATIONS Play Stop Search+ Search- Skip+ Skip- Slow+ Slow- Still/Pause/Step Display/Call TV/DVD Cancel Audio Select Angle Subtitle Top Menu Setup/TV Menu Return DVD Menu Up/ Set+/ CH Up Down/ Set-/ CH Down Left/Select- Right/Select+ Select/Enter Play Mode Marker Input Select Volume + Volume - Repeat A-B...
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GENERAL SPECIFICATIONS Down Mix Out (Dolby Digital) (DTS) Surround (Tru Surround) Screen Saver Available Scan Rates (Component) 480i/480p Audio DAC 192kHz / 24bit G-15 Accessories Owner's Manual Language English / Spanish w/Guarantee Card Remote Control Unit Rod Antenna Poles Terminal Loop Antenna Terminal U/V Mixer...
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GENERAL SPECIFICATIONS G-18 Weight Net (Approx.) 9.0kg (19.8 lbs) Net w/o Handle, Stand (Approx.) 8.0kg (17.6 lbs) Gross (Approx.) 11.0kg (24.3 lbs) G-19 Carton Master Carton Content --- Sets Material --- / --- Dimensions W x D x H(mm) Description of Origin Gift Box Material Double/White...
DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF MECHANICAL PARTS 1-3: BACK CABINET (Refer to Fig. 1-3) AND P.C. BOARDS Remove the 8 screws (1). Remove the screw (2). 1-1: HANDLE (Refer to Fig. 1-1) Remove the screw (3). Remove the 4 screws (1). Remove the Back Cabinet in the direction of arrow.
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DISASSEMBLY INSTRUCTIONS 1-5: DVD DECK (Refer to Fig. 1-5) 1-6: SIDE PANEL/OPERATION 2 PCB (Refer to Fig. 1-6) Short circuit the position shown in Fig. 1-5 using a Disconnect the following connector: soldering. If you remove the DVD Deck with no soldering (CP2251).
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DISASSEMBLY INSTRUCTIONS 1-8: LCD PCB (Refer to Fig. 1-8-B) 1-10: POWER PCB (Refer to Fig. 1-10) Disconnect the following connectors: Disconnect the following connector: (CP102, CP103, CP104, CP802 and CP3805). (CP3802). (Remove CP802 cable as shown Fig. 1-8-A.) Remove the 4 screws (1). Remove the screw (1).
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DISASSEMBLY INSTRUCTIONS 1-12: AV PCB (Refer to Fig. 1-12) 1-14: LCD COVER/LCD PANEL (Refer to Fig. 1-14) Remove the 8 screws (1). Disconnect the following connectors: (CP101, CP1001 and CP2201). Remove the LCD Block in the direction of arrow (A). Remove the 6 screws (1).
DISASSEMBLY INSTRUCTIONS 2. REMOVAL OF DVD DECK PARTS 2-2: TRAVERSE UNIT ROD/TRAVERSE UNIT HOLDER/ CD DECK/INSULATOR (Refer to Fig. 2-2) 2-1: LOADING MOTOR ASS'Y/START SW PCB ASS'Y/ Remove the screw (1). END SW PCB ASS'Y (Refer to Fig. 2-1-A) Remove the Traverse Unit Rod. Remove the 3 screws (1).
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DISASSEMBLY INSTRUCTIONS 2-4: DISC L LEVER/DISC STOPPER/LOCKER STOPPER/ 2-6: LINK R ASS'Y/LINK L/LINK MID/LINK SPRING ROLLER GEAR (Refer to Fig. 2-4-A) (Refer to Fig. 2-6) Remove the screw (1). Remove the screw (1). Remove the Disc L Lever and Disc L Lever Spring. Remove the Link Spring.
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DISASSEMBLY INSTRUCTIONS 2-8: CLAMPER ASS'Y/DISC GUIDE ARM/DISC R LEVER (Refer to Fig. 2-8-A) Unlock the support (1) and remove the Clamper Ass'y. Unlock the support (2) and remove the Disc Guide Arm. Unlock the support (3) and remove the Disc R Lever. Clamper Ass'y Disc R Lever Disc Guide Arm...
DISASSEMBLY INSTRUCTIONS REMOVAL AND INSTALLATION OF When IC starts moving back and forth easily after desoldering completely, pickup the corner of the IC using FLAT PACKAGE IC a tweezers and remove the IC by moving with the IC desoldering machine. (Refer to Fig. 3-3.) REMOVAL NOTE Put Masking Tape (cotton tape) around the Flat Pack-...
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DISASSEMBLY INSTRUCTIONS INSTALLATION When bridge-soldering between terminals and/or the soldering amount are not enough, resolder using a Thin- Take care of the polarity of new IC and then install the tip Soldering Iron. (Refer to Fig. 3-8.) new IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.
SERVICE MODE LIST This unit is provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter to the SERVICE MODE function, press and hold both buttons simultaneously on the main unit and on the remote control for more than the standard time in the appropriate condition.
WHEN REPLACING EEPROM (MEMORY) IC If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE 1. NOTE: No need to set data for between position INI 10 and INI 4F due to the adjustment value. Table 1 Turn on the POWER, and set to the TV mode.
ELECTRICAL ADJUSTMENTS BEFORE MAKING ELECTRICAL FUNCTION FUNCTION ADJUSTMENTS DRI1 W RCUT M DRI2 W Read and perform these adjustments when repairing the GCUT M MD6 W circuits or replacing electrical parts or PCB assemblies. BCUT M DTHON W DRI1 M DRREF W CAUTION DRI2 M...
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ELECTRICAL ADJUSTMENTS 2. BASIC ADJUSTMENTS 2-1: Confirmation of Fixed Value (Step No.) Please check if the fixed values of each the adjustment items are set correctly referring below. (RF/AV/DVD/COMPONENT MODE) FUNCTION STEP NO. COMPONENT RCUT M GCUT M BCUT M DRI1 M DRI2 M MD6 M...
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TV POWER BLOCK DIAGRAM TRANSFORMER SWITCHING D3606 T3601 L3603 CD503 D3603 AC IN L3604 F3601 L3605 D3607 IC3602 PS2561AL1-1-V(W) Q3601 SWITCHING FEED BACK CONTROL IC IC3603 ICE1QS01...
OPERATION2 SCHEMATIC DIAGRAM (OPERATION 2 PCB) TO OPE./AV JACK/REMOCON R2251 R2252 R2253 R2254 R2255 1.5K 2.7K 6.8K CP2251 (CD2251) A2001WR2-2P KEY1 PCB280 VEDA45A NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
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TUNER/STEREO SCHEMATIC DIAGRAM (AV PCB) FROM/TO MICON L901 P.CON+5V_A R CH SW IC 100uH 0305 IC903 MM1501XNRE R904 C941 Vin1 1.2K AV_SW1 AV_SW2 V.OUT TV/DVD C942 Vin2 C916 L CH SW IC TO SOUND AMP IC904 MM1501XNRE R903 C943 TV/DVD SW_A_OUT_L Vin1 TU001...
START SW/END SW SCHEMATIC DIAGRAM DECK CD M2301 CV-VTM101A MDN3BT3ESA 04_6232_104_015_800 2H091902 STEPPING_MOTOR[B-] STEPPING MOTOR(B-) STEPPING_MOTOR[B+] STEPPING_MOTOR(B+) STEPPING_MOTOR[A-] STEPPING_MOTOR(A-) STEPPING_MOTOR[A+] STEPPING_MOTOR(A+) S2001Y LOADING_MOTOR[+] S2004Y DISC_END_SW S2002Y LOADING_MOTOR[-] S2003Y DISC_IN_SW ESE22MH22 PCB580 DED023 PCB590 (START SW PCB) DED024 ESE22MH24 (END SW PCB) NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME NOTE:THE DC VOLTAGE EACH PART WAS OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE...
INTERCONNECTION DIAGRAM CD3601_2 WHITE S3601 POWER PCB PCB240 BLACK S3602 TEDB53 L3606 H NC H NC H NC H NC H NC H NC CD503 CP3802 CD2601 5 6 7 CP701 CD701 CP2601 L3607 DVD POWER DVD POWER DVD_RESET DVD_RESET YELLOW WHITE BLUE...
WAVEFORMS MPEG/MICON/DSP AUDIO/VIDEO MOTOR DRIVE 10ns 500µs 1.0V 500mV 1.0V REGULATOR 2 500µs 2µs 200ns 2.0V 500mV 500mV MEMORY2 200µs 10µs 2µs 500mV 200mV 2.0V RF AMP TUNER/STEREO 10µs 200ns 100mV 200mV 0.5V 200ns 10µs 200mV 100mV 0.5V The following waveforms were measured at the point of the corresponding NOTE: balloon number in the schematic diagram.
WAVEFORMS 50ns 50µs 200mV 1.0V 1.0V 10µs 0.5ms 1.0V 200mV 1.0V 10µs 50µs 200mV 1.0V 1.0V 10µs 200mV 1.0V 1.0V MICON SOUND AMP 10µs 20µs 0.5V 1.0V 50mV The following waveforms were measured at the point of the corresponding NOTE: balloon number in the schematic diagram.
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WAVEFORMS DECODER 0.1µs 50µs 50mV 100mV 0.5V TUNER/STEREO 10µs 10µs 200mV 0.5V 0.5V 10µs 200mV 0.5V IN/OUT 10µs 0.5V 0.5V 50µs 0.5V 0.5V The following waveforms were measured at the point of the corresponding NOTE: balloon number in the schematic diagram.
DVD DECK EXPLODED VIEW (TOP VIEW) NOTE: Applying positions AA and AB for the grease are CLASS PART NO. PART NAME MARK displayed for this section. GREASE Y315061000 G-555G Check if the correct grease is applied for each p osition. Y315121000 SF-112 I2-1...
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DVD DECK EXPLODED VIEW (BOTTOM VIEW) PCB580 (START SW PCB ASS'Y) PCB590 M2301 (END SW PCB ASS'Y) NOTE: Applying positions AA and AB for the grease are CLASS PART NO. PART NAME MARK displayed for this section. GREASE Y315061000 G-555G Check if the correct grease is applied for each p osition.