FILE NO. SERVICE MANUAL Original Version MODEL NO. PLV-55WHD1 PLV-65WHD1 U.S.A. LCD Projection TV Chassis No. M8L-55WHD100 M8P-65WHD100 NOTE: Match the Chassis No. on the rating sheet on the cabinet with the Chassis No. in the Service Manual. If the Original Version Service Manual Chassis No. does not match the unites, additional Service Literature is required. You must refer to “Notices” to the Original Service Manual prior to servicing the unit. Give complete “CHASSIS NO.
■ Contents ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Contents .................................................................................................................2 Safety Instructions..................................................................................................3 Specifications .........................................................................................................4 Circuit Protections ...........................................................................................
■ Safety Instructions SAFETY PRECAUTIONS WARNING: The chassis of this LCD projection TV is isolated (COLD) from AC line by using the converter transformer. Primary side of the converter and lamp power supply unit circuit is connected to the AC line and it is hot, which hot circuit is identified with the line ( ) in the schematic diagram. For continued product safety and protection of personnel injury, servicing should be made with qualified personnel. The following precautions must be observed.
■ Specifications Technical Specifications Screen Size (Measured Diagonally): PLV-55WHD1: 55-inches/PLV-65WHD1: 65-inches LCD Panel System: 0.
■ Circuit Protections This LCD Projection TV provides the following circuit protections to operate in safety. If the abnormality occurs inside the LCD Projection TV, it will automatically turn off by operating one of the following protection circuits. ● Fuse A fuse(F601) is located inside of the LCD Projection TV. When the POWER indicator is not lightning, the fuse may be opened. Check the fuse as following steps. The fuse should be used with the following type; Fuse Part No. : 323 022 2105 TYPE T4.
Circuit Protections ● Lamp cover switch The lamp cover switch (SW1861) cuts off the drive signal to the lamp circuit when the lamp cover is removed or no close completely. After opening the lamp cover for replacing the lamp unit, place the lamp cover correctly otherwise the LCD Projection TV can not be turned on.
■ Installation Placing and Settling the LCD Projection TV CAUTION; When placing the LCD Projection TV, the spaces for ventilation must be maintained. SIDE and TOP REAR 4" (10cm) 8" (20cm) 8" (20cm) 4" (10cm) Air Circulation The openings in the cabinet are provided for ventilation. To ensure reliable operation of the product and protect it from overheating, these openings must not be blocked or covered.
Installation Air intake vents and exhaust vents Caution; This LCD Projection TV is equipped with cooling fans for protection from overheating. Pay attention to following to ensure proper ventilation and avoid a possible risk of fire and malfunction. - Do not cover vent slots. Obstructions may block cooling air. BACK OF CABINET Air intake vents Caution; Exhaust vents (Hot air exhaust) Hot air is exhausted from the exhaust vent.
Installation Placing on the TV stand Caution; When placing on a LCD Projection TV stand, take the measures against prevention of fall for safety. Stand attachment hole (3 holes at bottom of cabinet) Attach the LCD Projection TV stand. Note; Follow to installation manual of a LCD Projection TV stand. (PLV-5565STD) Installing the LCD Projection TV for safety. When Installing the LCD Projection TV, secure the LCD Projection TV on the stand.
■ Cleaning ● Cleaning the LCD Projection TV Be sure to disconnect the AC Power cord from the AC outlet before cleaning the LCD Projection TV. ● Gently wipe the screen and the cabinet with a soft dry clean cloth. ● When it is heavily soiled, wipe the screen and the cabinet with a soft cloth dampened with warm water and finish with a soft, dry clean cloth. CAUTION; Do not use benzene, thinner, or any volatile substances to clean the LCD Projection TV. These chemicals may cause damage to the product.
Cleaning ● Optical parts care and cleaning After long periods of use, dust and other particles will accumulate on the LCD panel, prism, mirror, polarized glass, lens, etc., causing the picture to darken or color to blur. If this occurs,clean inside of the optical unit. Remove dust or other particles using air spray. If dirt cannot be removed by air spray, disassemble and clean the optical unit. Caution: Use a commercial (inert gas) air spray designed for cleaning camera and computer equipment.
■ Lamp Replacement When the life of the projection lamp of this LCD Projection TV draws to an end, the LAMP REPLACE indicator will become yellow. If this indicator turns to yellow, replace the lamp with a new one promptly. Front Panel This indicator becomes yellow when the life of the projection lamp draws to an end. CAUTION Allow a LCD Projection TV to cool, for at least 30 minutes before you open the Lamp cover. The inside of the LCD Projection TV can become very hot.
Lamp Replacement Lamp Replace Counter Be sure to reset the lamp counter after the lamp is replaced. When the lamp counter is reset, the LAMP REPLACE indicator will be turned off. 1 2 3 4 Press the MENU key to display the Main menu. Use the CURSOR ed keys to highlight (green) Lamp Counter Reset. Press ENTER. Use the CURSOR d key to select Yes. Press ENTER. Press the EXIT key to return to normal TV viewing. NOTE: ● Do not reset Lamp replace counter without implementation of lamp replacement.
Lamp Replacement ORDER REPLACEMENT LAMP Replacement lamp can be ordered through your dealer. When ordering a projection lamp, give the following information to the dealer. ● Model No. of your LCD Projection TV ● Replacement Lamp Type No. : PLV-55WHD1 / PLV-65WHD1 : POA-LMP96 (Service Parts No. 610 322 7382) This LCD Projection TV uses a high-pressure lamp which must be handled carefully and properly. Improper handling may result in accidents, injury, or create a fire hazard.
Optical parts location and direction H Film attached side comes this side. POLARIZED GLASS(IN) I J Film side Optical filter (LENTI) comes this side. (Black surface screen comes this side.) Film side Polarized glass Film attached side comes this side (LCD panel side) - 57 - Printed marker comes this side.
■ Adjustments after Parts Replacement After replacing electrical parts and optical parts, electrical adjustments and optical adjustments are required.
■ Optical Adjustments ● Preparation for Adjustments Before taking optical adjustments, remove the optical / chassis unit, front panel unit, key unit, digital unit following to the “Mechanical Disassemblies” Note: Do not disconnect connectors on the main board, except for K01L, K01R, K35R, K35G, or K35B, because the LCD Projection TV can not be turned on due to operate the power failure protection. Note: The connector K18U is for the lamp cover switch, so you should short SW1861 on the Cover SW board.
Optical adjustments Note: If the picture is left / right reversed on a screen, you can select front or rear projection for your convenience. Rear function Front function ● Rear - Front Project SW 1. Enter the service mode. 2. Select item no. "400" and change data value to select a direction of projection. Item no. 400 Adjustment value 0 1 Function Front projection Rear projection 3. Exit the service mode. --4. After servicing, this item should be set to default value = 1.
Optical adjustments Adjustment of optical components location Blue mirror, Condenser lens, Relay lens and contrast adjustment operate it from a back side.(Item1-1~1-3) (Remove the Optical/Chassis unit from the Cabinet) Picture image and focus adjustment operate it from a front side.(Item 2-1~2-3) (An optical unit must be fixed.) (Install the cabinet bottom cover.
Optical adjustments Optical components adjustments procedure When adjusting optical components, adjust each adjustment item in numerical order. Incorrect adjustment steps may produce improper adjustment. The items adjusted correctly can be omitted from the steps. When the Optical unit is disassembled, the pre-adjustment is necessary. The pre-adjustment can be omitted usually. Pre-adjustment (a) Condenser lens setting (b) Relay lens adjustment (c) Condenser lens adjustment 1.
Optical adjustments Optical Pre-adjustment Turn the LCD projection TV on by a state of without FPC cables. (a) Condenser lens pre-adjustment Loosen the 2 screws A and 2 screws C. Adjust the slot B to make shading(Red) appears on the right of the screen as shown in figure. Adjust the slot D to make shading(Red) appears on the bottom of the screen as shown in figure. (The screws are tightened later.
Optical adjustments (c) Condenser lens pre-adjustment Adjust the slot B to make color uniformity in white. (Shading disappears on the right of the screen. Red and Cyan) Adjust the slot D to make color uniformity in white. (Shading disappears on the bottom of the screen. Red and Cyan) Shade (Cyan) White Tighten 2 screws A and 2 screws C.
Optical adjustments 1-1. Relay lens adjustment 1. Turn the LCD projection TV on by a state of without FPC cables. 2. Adjust the adjustment base of Relay lens unit to make color uniformity in white. a) If the shading appears on the left or right of the screen as shown in figure, loosen 2 screws A with the ball allen wrench, and adjust the slot B to make color uniformity in white by using a slot screwdriver.
Optical adjustments 1-2. Condenser lens adjustment 1. Turn the LCD projection TV on by a state of without FPC cables. 2. Adjust the adjustment base of Condenser lens unit to make color uniformity in white. a) If the shading appears on the left or right of the screen as shown in figure, loosen 2 screws A with the ball allen wrench, and adjust the slot B to make color uniformity in white by using a slot screwdriver.
Optical adjustments 1-3. Contrast adjustment (R,G,B, polarized glass) R, G and B Contrast adjustment : 1.Turn the LCD projection TV on and input a 100% of black raster signal (0% of white raster signal). 2. Loosen screw A on the polarizer unit which you intend to adjust using ball allen wrench. 3. Turn the polarized glass mounting base (slot B) by using a slot screwdriver and adjust the brightness on the screen to the lowest level of black. 4. Tighten the screw A to fix the polarizer unit. 5.
Optical adjustments 2 Picture Image and focus adjustment (Projection lens adjustment) Before adjustment 1. Turn the LCD projection TV on and display grid pattern or circular pattern on the screen. 2. Be sure to fixed the Optical / Chassis unit with 3 screws to the cabinet. Install all parts on a back side, otherwise it may cause lose of performance of Optical Adjustment. (Refer to mechanical disassemblies.) 3. Remove the Front Cover unit from the cabinet bottom. 4.
Optical adjustments 2-1. Horizontal centering adjustment When the picture is shifted to right or left, adjust the picture horizontally. 1. Loosen the 4 screws A from the lens shift unit. 2. Project the circular pattern on screen. 3. Turn the adjustment cam B to right or left and adjust the position to project the picture on just center of the screen. 4. Tighten the 4 screws A.
Optical adjustments 2-2. Vertical centering adjustment When the picture is shifted to right or left, adjust the picture vertically. 1. Loosen the 4 screws A from the lens shift unit. 2. Project the circular pattern on screen. 3. Turn the adjustment cam C to right or left and adjust the position to project the picture on just center of the screen. 4. Tighten the 4 screws A.
Optical adjustments 2-3. Picture focus adjustment When the picture is off focused, adjust the picture focus. 1. Loosen the Projection lens focus lock screw D and turn the focus ring E for best focus. Be sure to tighten the Projection lens focus lock screw D and fix the Projection lens after adjustment. Adjust center part and four corners on the grid pattern to sharp focus.
■ Electrical Adjustments ● Service Adjustment Menu Operation Side Control ◆ To enter service mode To enter service mode, press and hold the "INFO" button on the remote control, then press the "VOL(–)" button on the side control. As shown in a figure, the service mode display appears on the screen. ◆ To adjust service data Adjust service data using the following control buttons on the LCD projection TV or the remote control. INPUT – "CHANNEL UP" ..........................................
Electrical Adjustments ● Circuit Adjustments CAUTION: The each circuit has been made by the fine adjustment at factory. Do not attempt to adjust the following adjustments except requiring the readjustments in servicing otherwise it may cause loss of performance and product safety. Note: Please refer to “Service Adjustment Menu Operation” for entering to the service mode and adjusting the service data. [Adjustment Condition] ● Input signal Video signal .......................... 1.
Electrical Adjustments c TV sound level adjustment b TV video level adjustment Equipment Input mode Input audio signal Equipment Input mode Input signal Digital voltmeter Analog TV mode 1KHz 100% modulation 1. Adjust the amplitude "a" by using VR101 on the tuner board. 1. Enter the service mode. 2. Adjust the audio output amplitude at Audio output-(L) terminal to become 400 ±10 mVac. Item no.
Electrical Adjustments n Common center adjustment m Panel luminance adjustment [High] Input mode Input signal Picture Lamp mode Equipment Input mode Picture Lamp mode Not designated 50% whole green, blue or red signal Auto High High 1. Receive the 100% whole-white signal. 2. Enter the service mode. 3. Measure luminance on the screen with the luminance meter. It is A for the reading of luminance meter. 4. Change the signal source to the 50% whole-white signal. 5. Select item no.
Electrical Adjustments . Panel luminance adjustment [Mid] ⁄0 White balance adjustment [Mid] Equipment Input mode Picture Lamp mode Input mode Picture Lamp mode luminance meter VIDEO_1 [Video] mode Auto Mid Mid 1. Enter the service mode. 2. Receive the 100% whole-white signal. 3. Select item no. “13” (Green), “14” (Blue) or “15” (Red), and change data values respectively to make a proper white balance. 4. Receive the 50% whole-white signal. 5. Select item no.
Electrical Adjustments ● Service Adjustment Data Table Item No.
Electrical Adjustments Item No.
Electrical Adjustments Item No.
Electrical Adjustments Item No.
Electrical Adjustments Item No.
Electrical Adjustments Item No.
Electrical Adjustments Item No.
Electrical Adjustments ● Test Points Location ● MAIN BOARD K01L K01R K8T K8K TPFAN1 TPFAN2 K8F K8G VR101 TPTV TPFAN3 K78B IC5101 TPFAN4 K78D K78E K8C IC5001 TP_OSDI0 TP_OSDI1 TP_OSDI2 TP_OSDE TPDECLK IC9401 TPDEDE TP_OHSB TPDEHS TPDEVS TP_WAITB TP_OVSB TP_OACT TPDHS TPHS_GAM TPDVS TPVS_GAM TE501 TE401 TPDCLK IC4801 B10C55000 TP_OCK IC501 IC401 Side_A TPPANELR IC4861 TPRLCCOM 1 K35R TPPANELG K35G IC1501 TPGLCCOM IC1801 TPPANELB IC801 TE1501 K35B IC2501 K8P TPBLCC
■ Chassis Block Diagrams ● Chassis Overview DTV A6120 ATSC TUNER IC561 LEVEL SHIFT IC6100 TS DEMODULATOR TV A101 ANALOG TUNER TU_AUDIO IC9401 COLOR MANAGER IC2561 LEVEL SHIFT Video,Y/C VIDEO1 TV_CV VIDEO Y/C B IC2501 S&H BLUE B-LCD PANEL IC5500 DTV PROCESSOR & SCAN CONVERTER IC5201 LVDS RECEIVER RF ANT IC1561 LEVEL SHIFT Digital Audio SPDIF G-LCD PANEL HDMI HDMI HDMI DIGITAL RGB G IC1501 S&H GREEN IC401 DIGITAL GAMMA DIGITAL AUDIO R IC501 S&H RED R-LCD PANEL TERRESTRIAL DIGI
Chassis Block Diagrams ● Video signal processing stage DIGITAL BOARD ANT DIGITAL ANTENNA IN A6120 ATSC IF OUT TUNER IF AGC IC6100 TPDATA TS DEMODULATOR TPCLK IC5700, 20 HDMI HDMI_HPD HDMI VIDEO3_Y/U/V HDMI IC6200 A/D CONVERTER VIDEO2_Y/U/V (Y) TE6207 VIDEO1_C LPF DTV PROCESSOR & SCAN CONVERTER, LPF RED GREEN BLUE LVDS TE5801 K6MA 46 Pb CVBS AV1_C AV2_Y/CB/CR AV3_Y/CB/CR K20P Y K5LV 44 K8C LVDS VIDEO 3 (RCA) IC5750 FLASH ROM V
Chassis Block Diagrams ● Description of video signal processing stage Input signal selecting stage: TV input; RF signal is converted to TV_CV signal in A101(Analog Tuner) and sent to IC4001. TV composite video signal is selected in IC4001. The output signal from IC4001 is sent to IC5500. Composite video input; Composite video signal [Video1] is selected in IC4001. The output signal from IC4001 is sent to IC5500. S-video input; S-video Y signal [Video1]is selected in IC4001.
Chassis Block Diagrams ● Audio signal processing stage DIGITAL BOARD ANT A6120 ATSC DIGITAL ANTENNA IN IF OUT TUNER IC6100 TS DEMODULATOR TPDATA IC5700, 20 DDR MEMORY IC5500 HDMI HDMI DTV PROCESSOR & SCAN CONVERTER, HDMI with digital audio signal When using DVI-HDMI cable, HDMI input has no digital audio signal, Video3 audio input is selected automatically. DIGITAL AUDIO OUT IC5750 FLASH ROM SPDIF IC6300 DM_L/R AMP.
Chassis Block Diagrams ● Lamp control stage K6C CN1 1 1 PWM BOOSTER CN3 FILTER BUFFER DC INPUT DC300~380V FULL BRIDGE IGNITION CIRCUIT LAMP 3 18V 3 IC601 P.F.C. 18V Output voltage. at starting time : 2.4 - 3.6 KV at normal : AC 70V typ. Output Frequency : 180 Hz typ.
Chassis Block Diagrams ● Fan control stage K78A 61 Q7881 FAN_SW TPFAN1 FAN_ENB H: FAan ON 17V Q7806 IC7801 Q7811 IC7821 K78C Q7821 K78D IC7861 Q7841 D7894 K78E TPFAN4 6 Q7851 FN901 1 2 FN903 1 2 FN904 1 2 FN902 D7895 Q7866 K78F IC7881 Q7861 Q7871 D7896 Q7898 FAN_ERR L : ERROR 1 2 D7893 Q7846 7 18 FN906 TPFAN3 Q7831 IC1801 DAC IC801 TV CPU 2 3 1 2 D7892 Q7826 5 SCL_TV SDA_TV Q7801 FN905 TPFAN2 4 25 24 D7891 K78B 1 2 For ABNORMAL TEMP.
Chassis Block Diagrams ● Mode Variation (AC power supply) (90 sec.) SUPER STAND-BY AC OFF (4 min.) (Lamp : OFF) COOLING (Lamp error) (ON/OFF KEY) POWER ON (Lamp : ON) LPS KE Y) WARNING (ON/OFF KEY) (no signal 5 min.) N /O FF (15 sec.) (O SUSPEND COUNTDOWN NORMAL (Lamp : ON) (with signal or any KEY) (B) LAMP COUNTER DISPLAY (no signal 30 sec.) (A) (A) : INFO + VOL(–) KEY (Return to normal with POWER KEY) SERVICE MODE (B) : INFO + CH(+) KEY (5 sec.
Chassis Block Diagrams ● System Controls DIGITAL BOARD FAN 61 18 5 6 7 FLASH ROM FAN CONTROL IC6101 I2C0_CLL/DATA FAN_ENB FAN_SW FAN_ERR 24,25 26,27 A101 TUNER IC836 EEPROM 90,91,92,93,94 RS/WAITB/RD/WR/CS_JPC Standby off IC5001 MTS DECODER IC5101 AUDIO CONTROL IC5500 SCL/SDA_TV Always Available IC8801,11 TEMP.
Chassis Block Diagrams ● Description of System controls Communication between Main board and Digital board IC801(TV CPU) and IC5500(DTV processor & scan converter) are communicated with UART data. The service data is memorized in IC836(EEPROM). Power supply lines When the PTV is connected to outlet with AC power cord, S5V line from T641(Converter Transformer) is supplied for standby circuit, including IC801(TV CPU). IC801 is waiting for POWER key input or remote control signal.
■ Power Supply Lines S5V_CPU 17V 6 2-3 2-3 5-6 5 6 2-3 2-3 5-6 6V 5 S5V 16VA POWER_ON P_FAIL K6MA K20P 3-4 6V 17V 6V 17VA Power-On : H D1.8V IC6080 TU5V D3.3V IC6070 TU1.8V TU33V L6113 TU3.3V IC6090 D2.5V_DDR D6082 D6071,72 P_FAIL S5V_CPU IC1816 S3.3V IC5621 1.8V IC496 D496,97 1.2VDG D1801 IC5681 5V L1801 5V_DAC IC5601 3.3V IC9491 3.3VA Q5291 3.3VD Q491 3.3VDG AUDIO CIRCUIT F.B. 17V R5294 R494 DEV_SW BOOSTER T651 CONVERTER TRANS.
■ Troubleshooting ● No Power This LCD projection TV provides a function which can be specified a defective area simply by indicating the LEDs on the front panel. Connect the AC cord and press the Power button once and then check the LED indication.
Troubleshooting ● No Picture Check following steps. No picture with all of input sources Yes Check RGB S&H signals at test points TPPANELR, TPPANELG, TPPANELB. Check power supply circuit 15.5V and peripheral circuit. Check IC501, IC1501, IC2501, IC9401, IC401, IC5500 and peripheral circuits. No No On-Screen-Display (OSD MENU) Yes Check OSD processing stage; Check IC5500 and peripheral circuits. Check LVDS signals at connector "K8C". Check test points "TPDE*" around IC5201.
Troubleshooting ● No Sound Check following steps. No sound with all of input sources No Yes Is the audio signal observed at pins 14 and 25 of IC5101? No Check audio signal selecting circuit. All of the audio input signals are selected in IC5101(audio control). --> Check IC5101 and peripheral circuit. Yes Check audio amp.and control circuit. Is the audio signal No observed at pins 12 and 8 of IC001? --> Check 16VA power supply line. --> Check IC001(audio-amp), IC5101 and peripheral circuit.
■ Control Port Functions ● TV CPU (IC801, LC87F5KP6AU) Pin No.
Control Port Functions Pin No.
■ Waveforms TV_COLORBAR-IN VIDEO2_Cr-IN VIDEO2_Y-IN VIDEO2_Cb-IN R-OUT G-OUT B-OUT -100-
■ IC Block Diagrams ● CAS-220 ● CXA2234Q -101-
IC Block Diagrams ● FA5502M Oscillator ON : Hi Output ON/OFF Control OFF : Low IC601 FA5502M RT 18V Soft Start CT VCC 10 REF CT 15 11 13 ON/OFF 12 C5 Boost Converter CS SYNC ON/OFF UVLO OSC 14 D1 L Rg1 11µA REF AC INPUT 3.95V/ 2.8V 5V 16.5V/8.9V Q Vin VC OUT PWM.COMP GND Rs 8 PWM OUTPUT Rg2 D2 7 R2 6 - 11k CUR.AMP VIN- 1.55V + MUL Voltage Error Amplifier C1 R3 VR1 R4 OVP.COMP R S S 0.39V VFB Q 5 1.64V OCP.
SCS DELAY CLXIN DX CLX CLX REVERCE LEVEL SHIFT LEVEL SHIFT REVERCE LEVEL SHIFT AUTO DELAY (PLL) AUTO DELAY (PLL) -103DY CLY CLY REVERCE LEVEL SHIFT REVERCE LEVEL SHIFT REVERCE LEVEL SHIFT LEVEL SHIFT REVERCE LEVEL SHIFT AUTO DELAY (PLL) AUTO DELAY (PLL) DELAY DELAY DYIN CLYIN ENBY1 ENBY2 REVERCE LEVEL SHIFT REVERCE LEVEL SHIFT ENBY1IN ENBY2IN PLL NRG REVERCE LEVEL SHIFT NRGIN CLK DIRY LEVEL SHIFT DIRY GENERATOR DIRX LEVEL SHIFT ENBX4 ENBX3 DIRX GENERATOR ENBX5IN SYSTEM CLOCK (
IC Block Diagrams ● L3E06150 ● NJW1180
IC Block Diagrams ● STR-Z2156A ● STR-A6159 -105-
