Text preview for : Combo_funai_emerson_sylvania_chasis-lcd-a1504.pdf part of Funai_Emerson_Silv LD195EMX Combo
Back to : Combo_funai_emerson_sylva | Home 15/20 COLOR LCD TELEVISION LCD-A1504 LCD-A2004 The LCD panel is manufactured to provide many years of useful life. Occasionally a few non active pixels may appear as a tiny spec of color. This is not to be considered a defect in the LCD screen. SPECIFICATIONS ANT. Input ------------------- 80 dBµV, Video: PAL 87.5%, Audio: 30 kHz dev (1 kHz Sin) Test Input Signal----------- 400Hz 30% modulation Description 1. Intermediate Freq. 2. Color Killer Sens. 3. AFT Pull In Range (10mV input) Condition Picture Sound CH-3 Unit MHz MHz dBµV MHz Nominal 45.75 41.25 20 ±1.6 Limit 23 ±0.7 Description 1. Number of Pixels 2. Brightness 3. Response Time 4. Support Color 5. Viewing Angle Horizontal Vertical Condition Horizontal Vertical Unit pixels pixels cd/m2 msec ° ° Nominal 640 x 3 480 450 16 16mil.(8bit) -85 to 85 -85 to 70 Limit - Description 1. Over Scan 2. Color Temperature Condition Horizontal Vertical x y Horizontal Vertical Unit % % °K Nominal 8.5 6.5 8500 0.29 0.30 400 350 Limit 10±5 10±5 0.29±0.03 0.30±0.03 <250 <300 3. Resolution line line Description 1. Audio Output Power 2. Audio Distortion All items are measured across 8 load at speaker output terminal with L.P.F. Condition 10% THD: Lch/Rch 500mW: Lch/Rch -6dB: Lch -6dB: Rch RF VIDEO 1 VIDEO 2 Unit W % Hz Hz dB dB dB Nominal 1.0/1.0 1.0/1.0 50 to 12K 50 to 12K 60 60 60 Limit 0.8/0.8 <3 45 45 45 3. Audio Freq. Response 4. Audio S/N Note: Nominal specifications represent the design specifications. All units should be able to approximate these. Some will exceed and some may drop slightly below these specifications. Limit specifications represent the absolute worst condition that still might be considered acceptable. In no case should a unit fail to meet limit specifications. 1-1 L4100SP Wiring Diagram To LCD Module Assembly CN320A CN321A LCD Main CBA CN101B CN102B CN103B T402 CN101A CN102A CN103A To LCD Module Assembly T401 Main CBA CN31A CN801 CN802 To Speaker To Speaker CN31B Function CBA Fig. D3 4-3 L4100DC Cable Wiring Diagram To LCD Module Assembly CN310A CN311A CN313A LCD Main CBA CN101B CN102B CN103B Inverter CBA Main CBA CN51 T1402 To LCD Module Assembly T1401 CN1401 CN405 CN101A CN102A CN103A T1404 To LCD Module Assembly T1403 CN53 CN801 CN802 To Speaker To Speaker CN51A IR Sensor CBA Function CBA Fig. D3 4-6 L4200DC HOW TO INITIALIZE THE LCD TELEVISION To put the program back at the factory-default, initialize the LCD television as the following procedure. How to initialize the LCD television: 1. Turn the power on. (Use main power on the TV unit.) 2. To enter the service mode, press [STANDBY], [2], [7], [1], and [MUTE] buttons on the remote control unit in that order within 5 seconds. - To cancel the service mode, press [STANDBY] button on the remote control. 3. To initialize the LCD television, press "DISPLAY" button on the remote control unit. 4. Confirm "FF" indication on the upper right of the screen. 5-1 L4100INT ELECTRICAL ADJUSTMENT INSTRUCTIONS General Note: "CBA" is abbreviation for "Circuit Board Assembly." NOTE: Electrical adjustments are required after replacing circuit components and certain mechanical parts. It is important to perform these adjustments only after all repairs and replacements have been completed. Also, do not attempt these adjustments unless the proper equipment is available. 1. Initial Setting General Enter the Service mode. Set the each initial data as shown on table 1 below. Table 1: Initial Data ITEM BRT(PAL) CNT(PAL) CLR-R(PAL) CLR-B(PAL) SHR(PAL) S-BRT(PAL) S-CNT(PAL) S-CLR-R(PAL) S-CLR-B(PAL) S-SHR(PAL) C-BRT(PAL) C-CNT(PAL) C-CLR-R(PAL) C-CLR-B(PAL) C-SHR(PAL) BRT(SECAM) CNT(SECAM) CLR-R(SECAM) CLR-B(SECAM) SHR(SECAM) S-BRT(SECAM) S-CNT(SECAM) S-CLR-R(SECAM) S-CLR-B(SECAM) S-SHR(SECAM) C-BRT(SECAM) C-CNT(SECAM) C-CLR-R(SECAM) C-CLR-B(SECAM) C-SHR(SECAM) BRT(NTSC) CNT(NTSC) CLR-R(NTSC) CLR-B(NTSC) TNT(NTSC) SHR(NTSC) S-BRT(NTSC) S-CNT(NTSC) S-CLR-R(NTSC) S-CLR-B(NTSC) S-TNT(NTSC) S-SHR(NTSC) 6-1 DATA VALUE BUTTON (on the remote LCD- LCDcontrol) A1504 A2004 130 174 78 78 143 130 174 78 78 143 134 122 156 156 143 130 174 78 78 143 130 174 78 78 143 134 122 156 156 143 134 172 78 78 148 143 134 172 78 78 148 143 134 174 74 74 143 134 174 74 74 143 134 132 154 154 143 134 174 74 74 143 134 174 74 74 143 134 132 154 154 143 134 174 70 70 148 143 134 174 70 70 148 143 L4100EA Test Equipment Required 1. DC Voltmeter 2. Pattern Generator 3. Color Analyzer MENU 1 How to Set up the Service mode: 1. Turn the power on. (Use main power on the TV unit.) 2. Press [STANDBY], [2], [7], [1], and [MUTE] buttons on the remote control unit in that order within 5 seconds. To cancel the service mode, press [STANDBY] button on the remote control. MENU 2 MENU 3 MENU 4 MENU 5 MENU 6 MENU 7 MENU 8 ITEM C-BRT(NTSC) C-CNT(NTSC) C-CLR-R(NTSC) C-CLR-B(NTSC) C-TNT(NTSC) C-SHR(NTSC) BRIGHT NORMAL DARK COR(C/D/S-1) COG(C/D/S-1) COB(C/D/S-1) DR(C/D/S-1) DG(C/D/S-1) DB(C/D/S-1) SBR(C/D/S-1) SBB(C/D/S-1) C-COR(C/D/S-2) C-COG(C/D/S-2) C-COB(C/D/S-2) C-DR(C/D/S-2) C-DG(C/D/S-2) C-DB(C/D/S-2) C-SBR(C/D/S-2) C-SBB(C/D/S-2) 7F LAST POWER SYSTEM NCM ASPECT RUSSIAN DATA VALUE BUTTON (on the remote LCD- LCDcontrol) A1504 A2004 134 122 156 156 148 143 0 40 95 131 131 131 145 143 140 0 0 131 131 131 145 143 140 0 0 FF OFF PAL-BG ON OFF OFF 134 132 154 154 148 143 0 65 98 131 131 131 145 143 140 0 0 131 131 131 145 143 140 0 0 FF OFF PAL-BG ON OFF OFF 3. Flicker Adjustment Adjustment Point: R977 (LCD Main CBA) LCD Main CBA R977 MENU 9 0 0 0 VOL. p VOL. p VOL. p VOL. p VOL. p VOL. p VOL. p VOL. p VOL. p VOL. p VOL. p VOL. p VOL. p VOL. p VOL. p VOL. p 1. Enter the Service mode. 2. Press "2" button on the remote control unit. The following screen appears. 1 2 3 4 5 6 7 9 1 2 3 4 5 6 7 9 3. If Flicker Adjustment is not fit, the screen become the following. VOL. p FLASH (Go and Off) 2. +B Adjustment Purpose: To obtain correct operation. Symptom of Misadjustment: The picture is dark and the unit does not operate correctly. Test Point TP401 (+B) TP300 (GND) M. EQ. DC Voltmeter Adj. Point VR649 Spec. +13.0±0.3V DC [LCD-A1504] +21.0±0.3V DC [LCD-A2004] 4. Adjust R977 so that flash stops. Note: TP401(+B), TP300(GND), VR649 --- Main CBA 1. Connect DC Volt Meter to TP401 and TP300(GND). 2. Adjust VR649 so that the voltage of TP401 becomes +13.0±0.3V DC [LCD-A1504] or +21.0±0.3V DC [LCD-A2004]. 6-2 L4100EA The following adjustment normally are not attempted in the field. Only when replacing the LCD Panel then adjust as a preparation. 4. White Balance Adjustment Purpose: To mix red, green and blue beams correctly for pure white. Symptom of Misadjustment: White becomes bluish or reddish. Test Point Adj. Point VOL. p buttons Mode [RF/AV2(CVBS)] C/D/S-1 [AV1(RGB)] C/D/S-2 Input White Purity (APL 80%) or (APL 40%) Screen M. EQ. Pattern Generator, Color analyzer Figure Spec. x: 260 to 320, y: 270 to 330 It carries out in a darkroom. Perpendicularity L = 50 cm INPUT: WHITE 80% Color Analyzer 1. Operate the unit for more than 20 minutes. 2. Input the White Purity (APL 80% or APL 40%). 3. Set the color analyzer to the CHROMA mode and bring the optical receptor to the center on the LCD-Panel surface after zero point calibration as shown above. Note: The optical receptor must be set perpendicularly to the LCD Panel surface. 4. [RF/AV2(CVBS)] Enter the Service mode. Press "VOL p " button on the remote control unit and select "C/D/S-1" mode. [AV1(RGB)] Enter the Service mode. Press "VOL p " button on the remote control unit and select "C/D/S-2" mode. 5. [RF/AV2(CVBS)] When "x" value and "y" value are not within specification, adjust "DB (C/D/S-1)" or "DR (C/D/S1)". Refer to "1. Initial Setting." Note: "DB(C/D/S1)" or "DR(C/D/S1)" must be adjusted within ±10. [AV1(RGB)] When "x" value and "y" value are not within specification, adjust "C-DB(C/D/S-2)" or "C-DR(C/ D/S-2)". Refer to "1. Initial Setting." Note: "C-DB(C/D/S-2)" or "C-DR(C/D/S-2)" must be adjusted within ±10. 6. Turn the power off and on again. (Main power button on the TV unit.) 6-3 L4100EA Comparison Chart of Models & Marks Model LCD-A1504 LCD-A2004 A Mark A B CN31A 3 KEY-IN-2 4 KEY-IN-1 7 RCV-IN KEY SWITCH KEY SWITCH RCV30 REMOTE SENSOR D30 STAND BY IC151 (MICRO CONPUTER) XIN 13 XOUT 11 B CN31B 3 4 7 AL+5V (NO CONNECTION) DVP-RESET-PC DVP-CLK-PC DVP-SIN-PC DVP-SOUT-PC DVP-CS-PC BUS-OPEN MPSEL-0 X151 10MHz CN301 8 5 7 6 4 2 3 FUNCTION CBA AL+5V KEY SWITCH CN51 3 KEY-IN-2 4 KEY-IN-1 KEY SWITCH CN51A 3 4 IC153 5 RESET RCV51 REMOTE SENSOR 4 FUNCTION CBA IC301 (LCD DRIVE / SIGNAL PROCESS) CN53 3 RCV-IN CLN53 3 MPSEL-0 83 AL+5V D51 STAND BY DVP-RESET-PC 50 79 2DVP-RESET RESET 10 IR SENSOR CBA System Control Block Diagram DVP-CLK 57 REG+3.3V Q152 3.3V<-->5V CONVERTER 2DVP-CLK 5 DVP-SIN 59 Q153 3.3V<-->5V CONVERTER 4 2DVP-SIN CN405 11 10 12 13 BACKLIGHT-ADJ BACKLIGHT-SW PROTECT-1 P-ON-H CN1401 11 10 12 13 BACKLIGHT-ADJ BACKLIGHT-SW PROTECT-1 P-ON-H TO LCD BACKLIGHT BLOCK DIAGRAM (B) INVERTER CBA DVP-SOUT 58 Q154 3.3V<-->5V CONVERTER 3 BLOCK DIAGRAMS 7-1 85 87 23 20 58 83 84 1 25 P-25V-ON RAPID-SW SLOW-SW RGB-CONTROL(NU) P-ON-L(NU) S/C-JACK-MUTE INSEL-MUTE SP-MUTE NICAM-RESET FBIN A DVP-CS 60 Q155 3.3V<-->5V CONVERTER 2 PROTECT-1 BACKLIGHT-ADJ BACKLIGHT-SW TO LCD BACKLIGHT BLOCK DIAGRAM (A) QH 89 Q156 3.3V<-->5V CONVERTER 19 FBIN 7 (NO CONNECTION) BUSY SCLK RXD CE(NU) EPM(NU) CNVSS TXD RESET CN104 2 3 4 5 6 9 10 8 AL+5V IC152 (MEMORY) 32 31 30 44 39 7 29 92 93 16 26 22 52 89 88 90 59 56 91 78 27 28 46 45 24 77 KEY-IN-2 KEY-IN-1 RCV-IN BUS-OPEN(NU) BACKLIGHT-ADJ BACKLIGHT-SW PROTECT-1 PROTECT-2 PROTECT-3 P-ON-H P-ON-H2 AFT-IN S-SW SCL SDA INPUT-0 INPUT-1 VOLUME A-MUTE(NU) TO POWER SUPPLY BLOCK DIAGRAM PROTECT-1 PROTECT-2 PROTECT-3 P-ON-H P-ON-H2 P-25V-ON SCL SDA S/C-JACK-MUTE AFT-IN S-SW INPUT-0 INPUT-1 FBIN RAPID-SW SLOW-SW TO IF/VIDEO BLOCK DIAGRAM WP 7 SCL 6 SDA 5 34 33 (NO CONNECTION) EEP-SCL EEP-SDA BUS-OPEN CN105 1 2 4 KEY-IN-2 2DVP-SOUT KEY-IN-1 RCV-IN BUS-OPEN(NU) BACKLIGHT-ADJ 2DVP-CS BACKLIGHT-SW PROTECT-1 PROTECT-2 H-SYNK PROTECT-3 P-ON-H P-ON-H2 AFT-IN S-SW BUSY-FLASH SCL SCLK-FLASH SDA RXD-FLASH INPUT-0 CE-FLASH(NU) INPUT-1 EPM-FLASH(NU) VOLUME CNVSS A-MUTE TXD-FLASH P-25V-ON RAPID-SW-IN SLOW-SW-IN RGB-CONTROL(NU) P-ON-L(NU) EEP-SCL SC-VIDEO-MUTE EEP-SDA INSEL-MUTE SP-MUTE NICAM-RESET CN102B 5 4 1 20 2 3 13 14 16 6 22 11 15 18 19 9 10 7 8 CN103B 23 18 19 26 24 16 17 20 22 25 CN102A 5 4 1 20 2 3 13 14 16 6 22 11 15 18 19 9 10 7 8 CN103A 23 18 19 26 24 16 17 20 22 25 S/C-JACK-MUTE INSEL-MUTE SP-MUTE NICAM-RESET SCL SDA VOLUME TO AUDIO BLOCK DIAGRAM L4100BLS CN105 IS USED FOR ADJUSTMENT AT FACTORY LCD MAIN CBA UNIT MAIN CBA VIDEO SIGNAL AUDIO SIGNAL TU1 (TUNER UNIT) SIF AUDIO TO AUDIO BLOCK DIAGRAM MAIN CBA SIF 7 AUDIO 6 VIDEO AFT SCL SDA 17 16 9 10 SDA IF/Video Block Diagram SCL AFT-IN RAPID-SW Q730 TO SYSTEM CONTROL BLOCK DIAGRAM FBIN IC781 (INPUT SELECT) S/C-JACK-MUTE SLOW-SW Q11 Q734 BUFFER 4 5 Q702 BUFFER Q701 WF3 S-SW 3 Q781 7-2 BUFFER WF2 BUFFER WF8 JK722 VIDEO1 -IN C Y SW CONTROL JK721 S-VIDEO -IN 9 10 AL+5V Q791 11 JK751 Q744 SLOW-SW 8 Q792 Q731 Q743 RAPID-SW 16 INPUT-0 INPUT-1 Q872 Q871 INPUT-0(INV) INPUT-1(INV) VIDEO-OUT 19 Q753 BUFFER Q752 WF6 TO SYSTEM CONTROL BLOCK DIAGRAM TO AUDIO BLOCK DIAGRAM CN103A VIDEO-Pr 15 VIDEO-Y 11 BUFFER Q751 WF5 VIDEO-Pb 7 BUFFER Q754 WF4 TO LCD BLOCK DIAGRAM (A),(B) CN103B VIDEO-IN 20 BUFFER WF7 1 2 3 5 6 8 9 VIDEO-Pr VIDEO-Y VIDEO-Pb S-VIDEO-C S-VIDEO-Y CVBS1 CVBS2 L4100BLIF AUDIO SIGNAL MAIN CBA IC831 (SOUND PROCESSOR) 2 AGC AUTOMATIC SOUND SELECT QUASI-PEAK DETECTOR I2C READ REGISTER A/D CONVERTER DEMODULATOR dBX/MNR PANDA1 QUASI-PEAK CHANNEL MATRIX FM/AM PRESCALE I2C DECORDER I2C READ REGISTER VOLUME D/A CONVERTER SOUND SELECT TO SYSTEM CONTROL BLOCK DIAGRAM SDA SCL NICAM-RESET 13 12 22 RESET STANDERD AND SOUND DETECTION DEEMPHASIS NICAM PRESCALE SIF SCART DSP INPUT SELECT A/D CONVERTER AVC SCART PRESCALE Audio Block Diagram TO IF/VIDEO BLOCK DIAGRAM SCART1 OUTPUT SELECT VOLUME D/A CONVERTER LOUD SPEAKER CHANNEL MATRIX SCART1 CHANNEL MATRIX AUDIO 43 R-CH 30 L-CH 31 CN802 SP-L 1 CLN802 GND 2 IC871 (INPUT SELECT) IC801 (AUDIO AMP) SP802 SPEAKER L-CH JK723 AUDIO1(L) -IN 13 6 11 15 12 TUNER AUDIO1 AUDIO2 (L-CH) 7-3 AMP 11 JK801 HEADPHONE JACK (L-CH) JK724 AUDIO1(R) -IN MUTE /STANDBY CONTROL VOLUME (R-CH) 1 3 2 7 (R-CH) AMP RF 5 14 TUNER 4 AUDIO1 2 AUDIO2 1 WF1 CN801 SP-R 1 CLN801 GND 2 SP801 SPEAKER R-CH SW CTL INH 6 9 10 JK751 AUDIO2(L) -IN 6 Q732 Q733 AUDIO2(R) -IN 2 Q741 SP-MUTE INSEL-MUTE S/C-JACK-MUTE VOLUME TO SYSTEM CONTROL BLOCK AUDIO2(R) -OUT 1 Q742 AUDIO2(L) -OUT 3 AL+5V L4100BLA INPUT-0(INV) INPUT-1(INV) TO IF/VIDEO BLOCK DIAGRAM VIDEO SIGNAL Model LCD-A1504 LCD-A2004 Mark A B Comparison Chart of Models & Marks IC301 (LCD DRIVE / SIGNAL PROCESS) LCD MAIN CBA UNIT CN103B A/D LCD MODULE A/D A/D R TP322 TP323 TO IF/VIDEO BLOCK DIAGRAM CN103A OUTPUT CONTROL A/D INPUT CONTROL NTSC/PAL SEPARATION VIDEO-Pr VIDEO-Y VIDEO-Pb S-VIDEO-C S-VIDEO-Y CVBS1 CVBS2 21 44 33 31 42 40 13 CVBS R VIDEO C SIGNAL G PROCESS Y B 1 2 3 5 6 8 9 LCD MODULE WF9 WF10 WF11 WF12 LCD Block Diagram ( A ) R904 R901 R902 TP318 TP319 BURST LOCKED G R997 LP POL STH1 HMS1-O CLKH HMS1-E RCO CHROMA DECODER CN320A 44 43 42 14 12 10 97 91 95 96 105 104 LP POL STH1 ODDINV CLKH1 EVENINV WF13 WF14 R907 SECAM PDM 103 STV1 98 CLKV 187 CLEAR B XIN XOUT 85 84 X301 54MHz PANEL+10.8V R TV SIGNAL PROCESS PANEL SIGNAL PROCESS R905 7-4 G B TP320 TP321 IC981, Q971 R977 VCOM CN320A 35 34 33 32 31 30 28 27 26 25 24 23 21 20 19 18 17 16 8 7 6 5 4 3 OR(0) OR(1) OR(2) OR(3) OR(4) OR(5) OR(0) OG(1) OG(2) OG(3) OG(4) OG(5) OB(0) OB(1) OB(2) OB(3) OB(4) OB(5) ER(0) ER(1) ER(2) ER(3) ER(4) ER(5) VCOM CONTROL TP316 TP317 STV1 CLKV CLEAR VREF(0) VREF(1) VREF(2) VREF(3) VREF(4) VREF(5) VREF(6) VREF(7) VREF(8) VREF(9) VCOM VCOM VCOM VCOM CN321A 13 14 15 29 28 27 26 25 23 22 21 20 19 3 4 35 36 TP312 TP313 CN321A 50 49 48 47 46 45 43 42 41 40 39 38 EG(0) EG(1) EG(2) EG(3) EG(4) EG(5) EB(0) EB(1) EB(2) EB(3) EB(4) EB(5) 182 181 180 179 175 174 173 169 168 167 166 165 161 160 159 158 155 154 153 152 151 150 146 145 143 142 141 140 139 135 134 133 132 131 130 129 128 127 123 122 121 120 119 116 115 114 113 106 TP314 TP315 L4100BLLCD VIDEO SIGNAL Model IC301 (LCD DRIVE / SIGNAL PROCESS) Comparison Chart of Models & Marks LCD MAIN CBA UNIT LCD-A1504 LCD-A2004 Mark A B CN103B A/D LCD MODULE A/D A/D R TP322 TP323 TO IF/VIDEO BLOCK DIAGRAM CN103A OUTPUT CONTROL A/D NTSC/PAL SEPARATION VIDEO-Pr VIDEO-Y VIDEO-Pb S-VIDEO-C S-VIDEO-Y CVBS1 CVBS2 21 44 33 31 42 40 13 CVBS R VIDEO C SIGNAL G PROCESS Y B 1 2 3 5 6 8 9 LCD MODULE WF9 WF10 WF11 WF12 INPUT CONTROL R904 LCD Block Diagram ( B ) R901 R902 BURST LOCKED G TP318 TP319 LP POL STH1 ODDINV CLKH EVENINV RCO CHROMA DECODER CN310A 39 38 37 8 5 2 97 91 95 96 105 104 LP POL STH1 ODDINV CLKH1 EVENINV R994 WF13 WF14 103 STV1 98 CLKV SECAM PDM B R907 CN310A 29 28 27 26 25 24 22 21 20 19 18 17 15 14 13 12 11 10 OR(0) OR(1) OR(2) OR(3) OR(4) OR(5) OG(0) OG(1) OG(2) OG(3) OG(4) OG(5) OB(0) OB(1) OB(2) OB(3) OB(4) OB(5) R905 STV1 CLKV VCOM VCOM XIN XOUT 85 84 X301 54MHz PANEL+10.8V R TV SIGNAL PROCESS PANEL SIGNAL PROCESS CN313A 14 16 1 2 7-5 G B TP320 TP321 IC981, Q971 R977 VCOM VCOM CONTROL TP316 TP317 VCOM VCOM VREF(0) VREF(1) VREF(2) VREF(3) VREF(4) VREF(5) VREF(6) VREF(7) VREF(8) VREF(9) CN311A 17 18 14 13 12 11 10 8 7 6 5 4 TP312 TP313 CN311A 39 38 37 36 35 34 32 31 30 29 28 27 25 24 23 22 21 20 ER(0) ER(1) ER(2) ER(3) ER(4) ER(5) EG(0) EG(1) EG(2) EG(3) EG(4) EG(5) EB(0) EB(1) EB(2) EB(3) EB(4) EB(5) 182 181 180 179 175 174 173 169 168 167 166 165 161 160 159 158 155 154 153 152 151 150 146 145 143 142 141 140 139 135 134 133 132 131 130 129 128 127 123 122 121 120 119 116 115 114 113 106 TP314 TP315 L4200BLLCD NOTE : The voltage for parts in hot circuit is measured using hot GND as a common terminal. CAUTION ! FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE T 4A , 250 V FUSE. Comparison Chart of Models & Marks Model LCD-A1504 LCD-A2004 Mark A B CAUTION ! Fixed voltage (or Auto voltage selectable ) power supply circuit is used in this unit. If Main Fuse (F601) is blown, check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail. HOT CIRCUIT. BE CAREFUL. HOT COLD Q502 Q503 T601 Q511 Q504 7 16 B Q501 LCD MAIN CBA UNIT AC601 AC CORD F601 T4A L 250V L601 D605 LINE FILTER BRIDGE RECTIFIER CN101A 1 4 7 10 CN101B PANEL+10.8V 1 PANEL+3.3V 4 PANEL+25V 7 PANEL-6V 10 PANEL+10.8V PANEL+3.3V PANEL+25V PANEL-6V 15 Q508 CN103A 11 13 14 15 AL+3.3V AL+5V AL+8V AL+8V ( 14 5 D505 SHUNT REGULATOR ( IC631 +5V REG Q512 CN103B AL+3.3V 11 AL+5V 13 IC101 14 REG+3.3V +3.3V 15 REG IC102 +1.8V REG REG+1.8V Power Supply Block Diagram 12 Q505 P-25V-ON AL+3.3V REG+5V IC602 SWITCHING REGULATOR 13 3 IC504 +3.3V REG Q602 10 1 7-6 B 2 AL+8V PROTECT-1 PROTECT-2 PROTECT-3 2 9 Q506 A IC507 +5V REG 4 11 IC503 +8V REG 5 AL+5V 6 Q510 AL+33V 7 4 B 1 ( VR649 +B ADJ TP401 +B Q507 D525 SHUNT REGULATOR ( +12V P-ON-H P-ON-L A AL+13V P-ON-H2 B TO LCD BACKLIGHT BLOCK DIAGRAM (A) IC601 ERROR VOLTAGE DET 3 2 Q603 4 1 (SHUNT ( REGULATOR 3 2 D649 Q633 CN405 1 2 3 4 AL+21V AL+21V AL+21V AL+21V IC603 ERROR VOLTAGE DET CN1401 AL+21V 1 2 3 4 TO LCD BACKLIGHT BLOCK DIAGRAM (B) L4100BLP MAIN CBA INVERTER CBA Comparison Chart of Models & Marks Model LCD-A1504 LCD-A2004 Mark A B MAIN CBA Q466 +12V SWITCHING T401 CN401 8 2 1 AL+13V TO POWER SUPPLY BLOCK DIAGRAM 3 Q467 SWITCHING BACKLIGHT-ON 4 Q470 Q469 SWITCHING BACKLIGHT-ON BACK LIGHT BACKLIGHT-SW PROTECT-1 TO SYSTEM CONTROL BLOCK DIAGRAM 2 Q425,Q426 SWITCHING 5 7 BACKLIGHT-ADJ CN402 9 2 1 Q468 PWM CONTOROL BACK LIGHT 1 Q423,Q427 6 Q460 10 Q463 OVER VOLTAGE PROTECTOR LCD Backlight Block Diagram ( A ) LCD MODULE Q462 7-7 + Q471 T402 3 8 OVER CURRENT PROTECTOR 4 Q461 Q464 OVER VOLTAGE PROTECTOR Q424,Q428 2 Q421,Q422 SWITCHING 5 7 OVER VOLTAGE PROTECTOR 9 1 6 10 L4100BLLB Comparison Chart of Models & Marks Model LCD-A1504 LCD-A2004 T1401 3 4 10 Q1410,1411 OVER VOLTAGE PROTECTOR 8 7 Q1412,1413 OVER VOLTAGE PROTECTOR 9 10 Q1414,1415 OVER VOLTAGE PROTECTOR 8 7 6 1 2 Mark A B 9 CN1402 1 2 BACK LIGHT 2 5 1 6 TO POWER SUPPLY BLOCK DIAGRAM AL+21V RL1401 P-ON-H Q1405, Q1406 T1402 3 4 2 5 1 CN1403 1 2 SW/ SW CTL PROTECT-1 TO SYSTEM CONTROL BLOCK DIAGRAM BACKLIGHT-SW Q1403 BACK LIGHT BACKLIGHT-ADJ IC1401 (DC-AC INVERTER CONTROL) + 5 3 OUTPUT LOGIC1 IC1402 (AMP) OUTPUT LOGIC2 12 14 13 3 5 23 24 LCD Backlight Block Diagram ( B ) 26 27 7 - + 10 6 - + + + + 7-8 OSC Q1407, Q1408 T1403 3 4 10 2 5 1 6 14 - LOGIC 9 Q1416,1417 OVER VOLTAGE PROTECTOR 8 7 Q1418,1419 OVER VOLTAGE PROTECTOR T1404 12 4 5 7 2 1 6 7 9 8 OVER VOLTAGE PROTECT Q1401 VCC 28 +10V REG. SW/ SW CTL PWM2 13 3 4 9 10 Q1420,1421 PWM1 10 11 2 5 1 6 8 7 OVER VOLTAGE PROTECTOR 16 STANDBY 9 15 PROTECT Q1402 1 MODE SW SLOW START L4200BLLB INVERTER CBA - - IC1403 (AMP) CN1404 1 2 BACK LIGHT CN1405 1 2 BACK LIGHT LCD MODULE Main 1/4 & IR Sensor Schematic Diagram Comparison Chart of Models and Marks MODEL LCD-A1504 LCD-A2004 MARK A B 8-3 L4100SCM1 Main 2/4 Schematic Diagram 8-4 L4100SCM2 Main 3/4 Schematic Diagram Comparison Chart of Models and Marks MODEL LCD-A1504 LCD-A2004 MARK A B 8-5 L4100SCM3 Main 4/4 Schematic Diagram Comparison Chart of Models and Marks NOTE: The voltage for parts in hot circuit is measured using hot GND as a common terminal. CAUTION ! For continued protection against fire hazard, replace only with the same type fuse. CAUTION ! Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. If Main Fuse (F601) is blown , check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail. MODEL LCD-A1504 LCD-A2004 MARK A B 8-6 L4100SCM4 Function Schematic Diagram ( A ) Comparison Chart of Models and Marks MODEL LCD-A1504 LCD-A2004 MARK A B 8-7 L4100SCF Function Schematic Diagram ( B ) Comparison Chart of Models and Marks MODEL LCD-A1504 LCD-A2004 MARK A B 8-8 L4200SCF Inverter Schematic Diagram ( B ) Comparison Chart of Models and Marks MODEL LCD-A1504 LCD-A2004 MARK A B 8-9 L4200SCINV LCD Main 1/2 Schematic Diagram Comparison Chart of Models and Marks MODEL LCD-A1504 LCD-A2004 MARK A B 8-10 L4100SCL1 LCD Main 2/2 Schematic Diagram 1 NOTE : CN104, CN105, CN301 are used for adjustment at factory. Comparison Chart of Models and Marks MODEL LCD-A1504 LCD-A2004 MARK A B 8-11 L4100SCL2 WAVEFORMS WF1 ~ WF8 = Waveforms to be observed at Waveform check points. (Shown in Schematic Diagram.) Input: PAL Color Bar Signal (with 1kHz Audio Signal) WF1 Pin 14 of IC801 WF4 Q751 EMITTER WF7 Q754 EMITTER AUDIO 0.1V 0.5ms B 0.5V 5µs CVBS2 0.2V 20µs WF2 Q701 EMITTER WF5 Q752 EMITTER WF8 Q781 EMITTER S-VIDEO-Y 0.2V 10µs G 0.5V 20µs CVBS1 0.2V 20µs WF3 Q702 EMITTER WF6 Q753 EMITTER S-VIDEO-C 0.2V 20µs R 0.5V 10µs 9-1 L4100WF WF9 ~ WF14 = Waveforms to be observed at Waveform check points. (Shown in Schematic Diagram.) Input: PAL Color Bar Signal (with 1kHz Audio Signal) Comparison Chart of Models and Marks MODEL LCD-A1504 LCD-A2004 MARK A B WF9 R997 ( A ) R994 ( B ) WF12 R904 CTKH 1V 20ns LP 1V 10µs WF10 R902 WF13 R907 STH1 1V 1µs STV1 1V 5ms WF11 R901 WF14 R905 POL 1V 20µs CLKV 1V 10µs 9-2 L4100WF Comparison Chart of Models & Marks Model LCD-A1504 LCD-A2004 Mark A B LCD MAIN CBA UNIT SP801 SPEAKER CN802 1 SP-R CLN801 2 GND < NO CONNECTION > CN104 AL+5V BUSY SCLK RXD NU NU GND RESET CNVSS TXD 1 2 3 4 5 6 7 8 9 10 SP802 SPEAKER CLN802 CN802 1 SP-R 2 GND < NO CONNECTION > CN105 IS USED FOR ADJUSTMENT AT FACTORY AC601 AC CORD JK751 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 20 CN105 EEP-SCL EEP-SDA GND BUS-OPEN NU 1 2 3 4 5 WIRING DIAGRAMS ( A ) 10-1 CN301 GND BUS-OPEN MPSEL-0 DVP-CS-PC DVP-CLK-PC SVP-SOUT-PC DVP-SIN-PC DVP-RESET-PC 1 2 3 4 5 6 7 8 < NO CONNECTION > CN102B RCV-IN BACKLIGHT-ADJ BACKLIGHT-SW KEY-IN-1 KEY-IN-2 P-ON-H VOLUME A-MUTE(NU) INPUT-0 INPUT-1 AFT-IN NU PROTECT-1 PROTECT-2 S-SW PROTECT-3 GND SCL SDA BUS-OPEN(NU) NU P-ON-H2 NU NU GND GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 CN102A RCV-IN BACKLIGHT-ADJ BACKLIGHT-SW KEY-IN-1 KEY-IN-2 P-ON-H VOLUME A-MUTE(NU) INPUT-0 INPUT-1 AFT-IN NU PROTECT-1 PROTECT-2 S-SW PROTECT-3 GND SCL SDA BUS-OPEN(NU) NU P-ON-H2 NU NU GND GND CN103A VIDEO-Pr VIDEO-Y VIDEO-Pb GND S-VIDEO-C S-VIDEO-Y GND CVBS1 CVBS2 GND AL+3.3V GND AL+5V AL+8V AL+8V S/C-JACK-MUTE INSEL-MUTE RAPID-SW SLOW-SW SP-MUTE NU NICAM-RESET P-25V-ON P-ON-L(NU) FBIN RGB-CONTROL(NU) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 CN103B VIDEO-Pr VIDEO-Y VIDEO-Pb GND S-VIDEO-C S-VIDEO-Y GND CVBS1 CVBS2 GND AL+3.3V GND AL+5V AL+8V AL+8V S/C-JACK-MUTE INSEL-MUTE RAPID-SW SLOW-SW SP-MUTE NU NICAM-RESET P-25V-ON P-ON-L(NU) FBIN RGB-CONTROL(NU) CN101B PANEL+10.8V GND GND PANEL+3.3V GND GND PANEL+25V GND GND PANEL-6V 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 CN101A PANEL+10.8V GND GND PANEL+3.3V GND GND PANEL+25V GND GND PANEL-6V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 CN320A GND GND ER (5) ER (4) ER (3) ER (2) ER (1) ER (0) GND HMS1-E GND CLKH GND HMS1-O GND OB (5) OB (4) OB (3) OB (2) OB (1) OB (0) GND OG (5) OG (4) OG (3) OG (2) OG (1) OG (0) GND OR (5) OR (4) OR (3) OR (2) OR (1) OR (0) GND PANEL+3.3V PANEL+3.3V PANEL+3.3V PANEL+3.3V GND STH1 POL LP GND CN401 1 2 CN402 1 2 TU1 TUNER UNIT BACK LIGHT CN321A GND NU VCOM VCOM TEST PANEL+2.5V TEST PANEL+3.3V NU PANEL-6V NU OFFEV STV1 CLKV XA0 GND NU NU VREF(9) VREF(8) VREF(7) VREF(6) VREF(5) GND VREF(4) VREF(3) VREF(2) VREF(1) VREF(0) GND NU PANEL+10.8V PANEL+10.8V NU VCOM VCOM GND EB (5) EB (4) EB (3) EB (2) EB (1) EB (0) GND EG (5) EG (4) EG (3) EG (2) EG (1) EG (0) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 BACK LIGHT MAIN CBA CN31A NU POWER-CONTROL(NU) KEY-IN-2 KEY-IN-1 AL+5V GND RCV-IN NU 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 CN31B NU POWER-CONTROL(NU) KEY-IN-2 KEY-IN-1 AL+5V GND RCV-IN NU FUNCTION CBA L4100WI LCD MODULE S-VIDEO VIDEO IN -IN AUDIO(L) AUDIO(R) -IN -IN Comparison Chart of Models & Marks Model LCD-A1504 LCD-A2004 Mark A B LCD MAIN CBA UNIT < NO CONNECTION > < NO CONNECTION > SP801 SPEAKER CN301 GND BUS-OPEN MPSEL-0 DVP-CS-PC DVP-CLK-PC SVP-SOUT-PC DVP-SIN-PC DVP-RESET-PC CLN801 CN802 1 SP-R 2 GND SP802 SPEAKER 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 10 CN104 AL+5V BUSY SCLK RXD NU NU GND RESET CNVSS TXD CLN802 CN802 1 SP-R 2 GND AC601 AC CORD JK751 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 20 CN313A VCOM VCOM NU VGH VGH NU PANEL+3.3V PANEL+3.3V NU PANEL-6V PANEL-6V NU GND STV1 GND CLKV GND GND XDON GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 WIRING DIAGRAMS ( B ) 10-2 CN105 EEP-SCL EEP-SDA GND BUS-OPEN NU 1 2 3 4 5 < NO CONNECTION > CN105 IS USED FOR ADJUSTMENT AT FACTORY CN102B RCV-IN BACKLIGHT-ADJ BACKLIGHT-SW KEY-IN-1 KEY-IN-2 P-ON-H VOLUME A-MUTE(NU) INPUT-0 INPUT-1 AFT-IN NU PROTECT-1 PROTECT-2 S-SW PROTECT-3 GND SCL SDA BUS-OPEN(NU) NU P-ON-H2 NU NU GND GND CN103A VIDEO-Pr VIDEO-Y VIDEO-Pb GND S-VIDEO-C S-VIDEO-Y GND CVBS1 CVBS2 GND AL+3.3V GND AL+5V AL+8V AL+8V S/C-JACK-MUTE INSEL-MUTE RAPID-SW SLOW-SW SP-MUTE NU NICAM-RESET P-25V-ON P-ON-L(NU) FBIN RGB-CONTROL(NU) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 CN102A RCV-IN BACKLIGHT-ADJ BACKLIGHT-SW KEY-IN-1 KEY-IN-2 P-ON-H VOLUME A-MUTE(NU) INPUT-0 INPUT-1 AFT-IN NU PROTECT-1 PROTECT-2 S-SW PROTECT-3 GND SCL SDA BUS-OPEN(NU) NU P-ON-H2 NU NU GND GND CN103B VIDEO-Pr VIDEO-Y VIDEO-Pb GND S-VIDEO-C S-VIDEO-Y GND CVBS1 CVBS2 GND AL+3.3V GND AL+5V AL+8V AL+8V S/C-JACK-MUTE INSEL-MUTE RAPID-SW SLOW-SW SP-MUTE NU NICAM-RESET P-25V-ON P-ON-L(NU) FBIN RGB-CONTROL(NU) BACK LIGHT CN1402 1 2 CN101B PANEL+10.8V GND GND PANEL+3.3V GND GND PANEL+25V GND GND PANEL-6V 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 CN101A PANEL+10.8V GND GND PANEL+3.3V GND GND PANEL+25V GND GND PANEL-6V CN51 NU POWER-CONTROL(NU) KEY-IN-2 KEY-IN-1 AL+5V GND 1 2 3 4 5 6 1 2 3 4 5 6 CN51A NU POWER-CONTROL(NU) KEY-IN-2 KEY-IN-1 AL+5V GND FUNCTION CBA BACK LIGHT CN1403 1 2 MAIN CBA BACK LIGHT CN1404 1 2 CN310A GND 1 EVENINV 2 GND 3 GND 4 CLKH 5 GND 6 GND 7 ODDINV 8 GND 9 OB (5) 10 OB (4) 11 OB (3) 12 OB (2) 13 OB (1) 14 OB (0) 15 GND 16 OG (5) 17 OG (4) 18 OG (3) 19 OG (2) 20 OG (1) 21 OG (0) 22 GND 23 OR (5) 24 OR (4) 25 OR (3) 26 OR (2) 27 OR (1) 28 OR (0) 29 GND 30 NU 31 PANEL+3.3V 32 PANEL+3.3V 33 PANEL+3.3V PANEL+3.3V 34 PANEL+3.3V 35 NU 36 STH1 37 POL 38 LP 39 GND 40 CN1401 AL+21V AL+21V AL+21V AL+21V GND GND GND GND GND BACKLIGHT-SW BACKLIGHT-ADJ PROTECT-1 P-ON-H 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 CN311A PANEL-6V PANEL-6V GND VREF(9) VREF(8) VREF(7) VREF(6) VREF(5) GND VREF(4) VREF(3) VREF(2) VREF(1) VREF(0) PANEL+10.8V PANEL+10.8V VCOM VCOM GND EB (5) EB (4) EB (3) EB (2) EB (1) EB (0) GND EG (5) EG (4) EG (3) EG (2) EG (1) EG (0) GND ER (5) ER (4) ER (3) ER (2) ER (1) ER (0) GND CN405 AL+21V AL+21V AL+21V AL+21V GND GND GND GND GND BACKLIGHT-SW BACKLIGHT-ADJ PROTECT-1 P-ON-H TU1 TUNER UNIT CN1405 1 2 CN53 AL+5V NU RCV-IN NU GND 1 2 3 4 5 1 2 3 4 5 CLN53 AL+5V NU RCV-IN NU GND BACK LIGHT IR SENSOR CBA L4200WI LCD MODULE INVERTER CBA S-VIDEO VIDEO IN -IN AUDIO(L) AUDIO(R) -IN -IN