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SERVICE MANUAL

EMERSON AND THE G-CLEF LOGO ARE REGISTERED TRADEMARKS
OF EMERSON RADIO CORP., PARSIPPANY, NEW JERSEY, U.S.A.

″

COLOR LCD TELEVISION

LC195EM9 B

Summary of Contents for LC195EM9 B

Page 1: ...SERVICE MANUAL TM EMERSON AND THE G CLEF LOGO ARE REGISTERED TRADEMARKS OF EMERSON RADIO CORP PARSIPPANY NEW JERSEY U S A 19 COLOR LCD TELEVISION LC195EM9 B ...

Page 2: ... service might be done or of the possible hazardous consequences of each way Consequently Funai has not undertaken any such broad evaluation Accordingly a servicer who uses a service procedure or tool which is not recommended by Funai must first use all precautions thoroughly so that neither his safety nor the safe operation of the equipment will be jeopardized by the service method selected TABLE...

Page 3: ...q Range 28dBm kHz 100 2 ATSC Dynamic Range min max ch 4 ch 10 ch 41 dBm dBm dBm 76 0 76 0 74 4 Description Condition Unit Nominal Limit 1 Native Pixel Resolusion Horizontal Vertical pixels pixels 1440 900 2 Brightness w filter cd m2 220 3 Viewing Angle Horizontal Vertical 85 to 85 80 to 80 Description Condition Unit Nominal Limit 1 Over Scan Horizontal Vertical 6 6 6 5 6 5 2 Color Temperature x y ...

Page 4: ...d 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 Description Condition Unit Nominal Limit 1 Audio Output Power 6dB 10 THD Lch Rch W 1 0 1 0 0 8 0 8 2 Audio Distortion 500mW Lch Rch 1 5 1 5 3 0 3 0 3 Audio Freq Response NTSC 6dB Lch ...

Page 5: ...om any AC source connect an electrical jumper across the two AC plug prongs Place the instrument AC switch in the on position Connect one lead of an ohmmeter to the AC plug prongs tied together and touch the other ohmmeter lead in turn to each tuner antenna input exposed terminal screw and if applicable to the coaxial connector If the measured resistance is less than 1 0 megohm or greater than 5 2...

Page 6: ...m is not isolated from the AC power line The two ground systems are electrically separated by insulation material that must not be defeated or altered 5 Observe original lead dress Take extra care to assure correct lead dress in the following areas a near sharp edges b near thermally hot parts be sure that leads and components do not touch thermally hot parts c the AC supply d high voltage and e a...

Page 7: ... PVC tubing 3 Spacers 4 Insulators for transistors E When replacing AC primary side components transformers power cord etc wrap ends of wires securely about the terminals before soldering F Observe that the wires do not contact heat producing parts heat sinks oxide metal film resistors fusible resistors etc G Check that replaced wires do not contact sharp edged or pointed parts H When a power cord...

Page 8: ...exposed accessible parts RF terminals antenna terminals video and audio input and output terminals microphone jacks earphone jacks etc is lower than or equal to the specified value in the table below Measuring Method Power ON Insert load Z between B earth ground power cord plug prongs and exposed accessible parts Use an AC voltmeter to measure across both terminals of load Z See Fig 2 and followin...

Page 9: ...the Flat Pack IC about 5 to 6 seconds Fig S 1 1 2 Remove the flat pack IC with tweezers while applying the hot air 3 Bottom of the flat pack IC is fixed with glue to the CBA when removing entire flat pack IC first apply soldering iron to center of the flat pack IC and heat up Then remove glue will be melted Fig S 1 6 4 Release the flat pack IC from the CBA using tweezers Fig S 1 6 CAUTION 1 The Fl...

Page 10: ...y one using a sharp pin or wire to which solder will not adhere iron wire When heating the pins use a fine tip soldering iron or a hot air desoldering machine Fig S 1 4 3 Bottom of the flat pack IC is fixed with glue to the CBA when removing entire flat pack IC first apply soldering iron to center of the flat pack IC and heat up Then remove glue will be melted Fig S 1 6 4 Release the flat pack IC ...

Page 11: ...s Fig S 1 6 Note When using a soldering iron care must be taken to ensure that the flat pack IC is not being held by glue When the flat pack IC is removed from the CBA handle it gently because it may be damaged if force is applied 2 Installation 1 Using desoldering braid remove the solder from the foil of each pin of the flat pack IC on the CBA so you can install a replacement flat pack IC more ea...

Page 12: ...d to remove any static electricity that may be charged on the body 2 Ground for Workbench Be sure to place a conductive sheet or copper plate with proper grounding 1 MΩ on the workbench or other surface where the semi conductors are to be placed Because the static electricity charge on clothing will not escape through the body grounding band be careful to avoid contacting semi conductors with your...

Page 13: ... Locking Tabs L 2 5 Refer to the following Reference Notes in the Table Step Loc No Part Removal Fig No Remove Unhook Unlock Release Unplug Unclamp Desolder Note 1 Stand Cover D1 2 S 1 2 Stand Neck D1 2 S 2 3 Fix Stand Holder D1 2 S 3 4 Rear Cabinet D1 5 S 4 4 S 5 6 Digital Main CBA Unit 11 IR Sensor CBA 1 Stand Cover 2 Stand Neck 4 Rear Cabinet 12 Function CBA 14 Speaker s 3 Fix Stand Holder 5 Sh...

Page 14: ...4 2 A8AN5DC 4 Rear Cabinet S 4 S 4 S 4 S 5 S 4 S 1 S 2 S 3 S 3 1 Stand Cover 2 Stand Neck 3 Fix Stand Holder S 5 S 5 S 4 Fig D1 ...

Page 15: ...R Sensor CBA 5 Shield Box 9 Junction CBA 10 Inverter CBA 15 Front Cabinet 8 Power Supply CBA 7 Tuner Holder 12 Function CBA 14 Speaker S 7 S 6 S 11 S 10 6 Digital Main CBA Unit 13 LCD Module Assembly S 11 S 8 S 10 14 Speaker S 10 Fig D2 ...

Page 16: ...102 CN309 CN402 CN451 CL101B Power Supply CBA CN306 CL101A CN401 To Speaker CL102 Junction CBA CN303 CN302 CN301 Inverter CBA To LCD Module Assembly CN403B CN403A CL403 To Speaker Digital Main CBA Unit To LCD Module Assembly CN3601 CN3701 CN4501 CN4502 CN3704 Fig D3 ...

Page 17: ...ired 1 DC Voltmeter 2 NTSC Pattern Generator Color Bar W White Window Red Color Dot Pattern Gray Scale Monoscope Multi Burst 3 Remote control unit 4 Color Analyzer How to make the Service remote control unit Cut A portion of the attached remote control unit as shown in Fig 1 How to set up the service mode Service mode 1 Use the service remote control unit 2 Turn the power on 3 Press the service bu...

Page 18: ...ration as shown above Note The optical receptor must be set perpendicularly to the LCD Panel surface 3 Enter the Service mode 4 Press 3 button on the service remote control unit 5 Press CH o p buttons on the service remote control unit so that the color analyzer value becomes minimum 7 button Note When entering this mode the default setting is White mode Purity Check Mode 7 button Red mode Green m...

Page 19: ...Panel surface 4 Enter the Service mode Press VOL n button on the service remote control unit and select C D mode 5 CUTOFF Press 3 button to select COB for Blue Cutoff adjustment Press 1 button to select COR for Red Cutoff adjustment DRIVE Press 6 button to select DB for Blue Drive adjustment Press 4 button to select DR for Red Drive adjustment 6 In each color mode press CH o p buttons to adjust th...

Page 20: ...utton on the service remote control unit Refer to page 5 1 To cancel the service mode press POWER button on the remote control unit 3 Press INFO button on the service remote control unit to initialize the LCD television 4 INITIALIZED will appear in the upper right of the screen INITIALIZED color will change to green from red when initializing is complete ...

Page 21: ...BLOCK DIAGRAM PROTECT1 22 P ON H1 14 P ON H2 13 P ON H2 P ON H1 2 22 TXD 16 RXD1 N22 AMP MUTE SUB 18 REMOTE R22 RESET MAIN 5 RESET MAIN V24 TO AUDIO 2 BLOCK DIAGRAM LED1 4 4 REMOTE 2 2 P ON H1 5 5 CL102 KEY IN1 6 6 CN102 LED1 11 13 CN302 P ON H2 1 23 CN3701 KEY IN1 23 1 KEY IN1 24 VCOM PWM 21 VCOM PWM C12 AMP MUTE MAIN AMP MUTE SCL SDA 19 20 IC3102 MEMORY 5 6 SDA SCL WP 2 7 WP PROTECT2 23 PROTECT3...

Page 22: ...DEO Y 19 S VIDEO C 21 COMP Y 14 COMP Pb 16 COMP Pr 17 1 5 3 10 8 7 WF1 WF2 WF3 WF4 WF5 WF6 C Y JK7701 S VIDEO IN1 POWER SUPPLY CBA VIDEO S VIDEO Y S VIDEO C COMP Y COMP Pb COMP Pr VIDEO OUT 4 BUFFER Q3 TU CVBS 11 13 TU1 DIF OUT1 20 DIF OUT2 21 TUNER UNIT IF AGC 18 CN303 CN3704 DIF OUT1 22 2 S SW 1 23 IF AGC 18 6 DIF OUT2 20 4 TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM TO SYSTEM CONTROL BLOCK DIAGRAM ...

Page 23: ...RAM INPUT1 INPUT0 SIF JK7716 JK7717 CN3704 CN303 AUDIO L 3 21 AUDIO R 4 20 CN3704 CN303 INPUT1 7 17 INPUT0 8 16 POWER SUPPLY CBA BCLK LRCLK ACLK AUX ADATA IC3702 AUDIO A D CONVERTER A D CONVERTER 1 2 11 10 15 12 TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM L CH R CH DIGITAL MAIN CBA UNIT SIF OUT TU1 TUNER UNIT 3 Q4 Q5 BUFFER SIF 9 15 WF7 JK7501 PC AUDIO IN 2 1 15...

Page 24: ...E DIGITAL MAIN CBA UNIT POWER SUPPLY CBA TO SYSTEM CONTROL BLOCK DIAGRAM AUDIO SIGNAL 14 IC7304 AUDIO AMP 7 VOLUME 11 AMP AMP R CH L CH 2 Q7303 5V 6 1 AUDIO MUTE SP802 SPEAKER R CH CN451 SP R 1 SP GND 2 SP801 SPEAKER L CH CN306 SP L 1 SP GND 2 MUTE STANDBY CONTROL IC701 AUDIO D A CONVERTER D A CONVERTER L CH R CH 15 14 5 6 7 8 JUNCTION CBA SP R 11 11 SP R 11 11 CN403A CN309 CN403B CL403 INVERTER C...

Page 25: ... 34 33 32 46 1 45 80 82 84 AF20 9 10 7 8 5 6 1 2 3 4 D RSDS OUTPUT LVDS RX SCL SDA SCL SDA D RSDS OUTPUT 87 88 6 5 DATA MAPPING AE20 AD19 AD20 AE19 AF19 AF18 AE18 AE21 AF21 AD25 AD26 AE25 AF25 AF24 AE24 AD23 AD24 AF26 AE26 LVDS TX DIGITAL SIGNAL PROCESS A D CONVERTER COMP Pr VIDEO S VIDEO Y S VIDEO C TO VIDEO BLOCK DIAGRAM SW W3 U3 V3 V4 COMP Pb T3 COMP Y U4 T4 TU CVBS Y3 IF AGC V COM 9 TP1 20 POL...

Page 26: ... SUPPLY BLOCK DIAGRAM CN309 INVERTER CBA OVER CURRENT PROTECTOR T401 12 11 13 14 9 4 5 10 7 2 1 6 8 3 SW 22V OVER VOLTAGE PROTECTOR Q412 OVER CURRENT PROTECTOR JS411 35V 1 1 PROTECT3 8 8 FEEDBACK 2 2 INV 22V 3 4 3 4 BACKLIGHT SW 9 9 35V 1 PROTECT3 8 FEEDBACK 2 INV 22V 3 4 BACKLIGHT SW 9 JUNCTION CBA CN403B CN403B CL403 CN403A CL403 CN403A TO SYSTEM CONTROL BLOCK DIAGRAM CN309 ...

Page 27: ...P ON 2 0V 2 0V REG IC3302 1 8V 1 8V REG IC3601 1 1V 1 1V REG IC3603 P ON 5V DIGITAL MAIN CBA UNIT 4A 125V F601 4A 125V LINE FILTER L601 AC601 AC CORD BRIDGE RECTIFIER D609 D612 35V 1 FEEDBACK 2 INV 22V 3 4 CN309 TO INVERTER BLOCK DIAGRAM CL403 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 th...

Page 28: ... in the schematic diagram and the parts list Before replacing any of these components read the parts list in this manual carefully The use of substitute replacement parts that do not have the same safety characteristics as specified in the parts list may create shock fire or other hazards Notes 1 Do not use the part number shown on these drawings for ordering The correct part number is shown in th...

Page 29: ...mended since the drawings were prepared 2 To maintain original function and reliability of repaired units use only original replacement parts which are listed with their part numbers in the parts list section of the service manual 4 Voltage indications on the schematics are as shown below Plug the TV power cord into a standard AC outlet 5 How to read converged lines 6 Test Point Information 2 3 1 ...

Page 30: ...o Voltage 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 For continued protection against risk of fire replace only with ...

Page 31: ...8 4 A8AN5SCP2 Power Supply 2 3 Schematic Diagram CN303 1 5 2 2 0 3 2 6 4 2 6 5 0 6 0 7 0 8 0 9 1 9 10 0 11 1 6 12 13 0 14 0 15 5 0 16 4 9 17 0 18 0 19 0 20 21 0 22 23 0 VOLTAGE CHART Pin No Voltage ...

Page 32: ...5 A8AN5SCP3 Power Supply 3 3 Schematic Diagram CN302 1 3 4 2 0 3 3 4 4 3 4 5 0 6 1 7 7 1 6 8 0 9 1 7 10 1 7 11 0 12 1 0 13 0 14 0 15 0 16 0 17 0 18 0 19 0 20 0 21 0 22 0 23 0 VOLTAGE CHART Pin No Voltage ...

Page 33: ...8 6 A8AN5SCINV Inverter Junction Schematic Diagram ...

Page 34: ...8 7 A8AN5SCF Function Schematic Diagram ...

Page 35: ...8 8 A8AN5SCIR IR Sensor Schematic Diagram ...

Page 36: ...Main 1 4 Schematic Diagram 1 NOTE The order of pins shown in this diagram is different from that of actual IC3301 IC3301 is divided into four and shown as IC3301 1 4 IC3301 4 4 in this Digital Main Schematic Diagram Section ...

Page 37: ... Main 2 4 Schematic Diagram 1 NOTE The order of pins shown in this diagram is different from that of actual IC3301 IC3301 is divided into four and shown as IC3301 1 4 IC3301 4 4 in this Digital Main Schematic Diagram Section ...

Page 38: ...Schematic Diagram A8AN5SCD3 1 NOTE The order of pins shown in this diagram is different from that of actual IC3301 IC3301 is divided into four and shown as IC3301 1 4 IC3301 4 4 in this Digital Main Schematic Diagram Section ...

Page 39: ...Schematic Diagram A8AN5SCD4 1 NOTE The order of pins shown in this diagram is different from that of actual IC3301 IC3301 is divided into four and shown as IC3301 1 4 IC3301 4 4 in this Digital Main Schematic Diagram Section ...

Page 40: ...ircuit is measured using hot GND as a common terminal 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 For continued protec...

Page 41: ...e isolation transformer is required NOTE The voltage for parts in hot circuit is measured using hot GND as a common terminal 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 s...

Page 42: ...8 15 BA8CN0F01021 Inverter CBA Top View ...

Page 43: ...8 16 BA8CN0F01021 Inverter CBA Bottom View ...

Page 44: ...8 17 BA8AN0F01012 2 Function CBA Top View Function CBA Bottom View ...

Page 45: ...8 18 BA8CN0F01021 Junction CBA Top View Junction CBA Bottom View BA8AN0F01012 3 IR Sensor CBA Top View IR Sensor CBA Bottom View ...

Page 46: ...Waveform check points Shown in Schematic Diagram VIDEO 0 2V 20µs WF1 Pin 23 of CN302 S VIDEO Y 0 2V WF2 Pin 19 of CN302 20µs S VIDEO C 0 2V WF3 Pin 21 of CN302 20µs AUDIO 1V 0 5ms WF7 Pin 3 of CN303 COMP Pr 0 2V 20µs Pin 17 of CN302 WF6 COMP Pb 0 2V 20µs Pin 16 of CN302 WF5 COMP Y 0 2V 20µs Pin 14 of CN302 WF4 ...

Page 47: ...CD 6 8V GND LCD 3 3V GND AL 3 3V GND P ON 3 3V P ON 3 3V 3 0V GND 3 0V 1 3 0V 1 P ON 5V GND P ON H1 P ON H2 2 CN303 CN3704 23 19 21 15 17 22 20 18 16 14 10 12 6 8 13 11 9 7 5 1 3 4 23 19 21 15 17 22 20 18 16 14 10 12 6 8 13 11 9 7 5 1 3 4 2 S SW GND AUDIO L AUDIO R GND NU INPUT1 INPUT0 SIF GND TU CVBS NU GND NU SCL SDA GND IF AGC GND DIF OUT2 GND DIF OUT1 GND 2 CN3701 CN302 23 19 21 15 17 22 20 18...

Page 48: ...6 B3 S5 L10 L10 L30 L30 SP801 SP802 Inverter CBA Digital Main CBA Unit AC601 Function CBA IR Sensor CBA B20 L9 L9 L10 A4 L3 L3 L3 L11 L10 L5 L11 L11 L3 A24 L10 L10 L10 L17 B14 B3 L3 B3 A12 L30 L30 A10 LCD1 A9 CL4502 CL4501 Junction CBA See Electrical Parts List for parts with this mark Power Supply CBA ...

Page 49: ...11 2 A8AN5PEX Packing S1 FRONT FRONT S2 S4 Tape Packing Tape S3 S3 X1 Some Ref Numbers are not in sequence X4 X3 Packing Tape Packing Tape Packing Tape S16 S5 X2 X14 ...

Page 50: ...ND HOLDER A8AN0UH 1EM323938 B17 SEPARATION SHEET A8AN0UH 1EM324520 B36 GASKET A8AF0UH 1EM425861 B38 TUNER HOLDER A8AN0UH 1EM324097 CL4501 WIRE ASSEMBLY 55PIN WX1A8CN0 007 WX1A8CN0 007 CL4502 WIRE ASSEMBLY 55PIN WX1A8CN0 007 WX1A8CN0 007 L3 SCREW P TIGHT 3X10 BIND HEAD GBHP3100 L5 SCREW P TIGHT M4X18 BIND HEAD GBHP4180 L10 SCREW S TIGHT M3X6 BIND HEAD GBJS3060 L11 SCREW S TIGHT M3X8 BIND HEAD GBHS3...

Page 51: ... K 1500pF 1KV CCD3AKP0B152 C638 ELECTROLYTIC CAP 470µF 25V M CE1EMZADL471 C639 ELECTROLYTIC CAP 330µF 50V M CE1JMZADL331 C642 CAP ELE STD 85 4700µF 6 3V SL CE0KMZNDL472 C643 ELECTROLYTIC CAP 470µF 10V M CE1AMASDL471 C644 CHIP CERAMIC CAP 1608 B K 0 1µF 50V CHD1JK30B104 C647 ELECTROLYTIC CAP 10µF 50V M CE1JMASDL100 C650 ELECTROLYTIC CAP 220µF 16V M CE1CMASDL221 C651 CHIP CERAMIC CAP 1608 B K 0 01µF...

Page 52: ...ODE 1ZC43 Q QDLZ001ZC43Q D645 SWITCHING DIODE 1SS133 T 77 QDTZ001SS133 D646 SWITCHING DIODE 1SS133 T 77 QDTZ001SS133 D647 SCHOTTKY BARRIER DIODE ERB81 004 AERB81004 Ref No Description Part No D648 IC SHUNT REGULATOR KIA431 AT P NSZBA0TJY036 D649 ZENER DIODE MTZJT 7733B QDTB00MTZJ33 D650 ZENER DIODE MTZJT 776 2C QDTC0MTZJ6R2 D651 RECTIFIER DIODE 1N4005 NDQZ001N4005 D652 ZENER DIODE MTZJT 7724B QDTB...

Page 53: ... Ω RN016R8DP003 R631 METAL OXIDE FILM RES 1W J 8 2 Ω RN018R2DP003 Ref No Description Part No R632 CHIP RES 1 10W F 4 7k Ω RRXAFR5H4701 R634 CARBON RES 1 4W J 6 8k Ω RCX4JATZ0682 R635 CARBON RES 1 4W J 270 Ω RCX4JATZ0271 R636 CHIP RES 1 10W F 4 7k Ω RRXAFR5H4701 R637 CARBON RES 1 4W J 8 2k Ω RCX4JATZ0822 R638 CHIP RES 1 10W J 1 5k Ω RRXAJR5Z0152 R639 CARBON RES 1 4W J 100 Ω RCX4JATZ0101 R640 CHIP R...

Page 54: ... 2k Ω RRXAJR5Z0222 MISCELLANEOUS AC601 AC CORD A0A0280 007 WAC0172LTE04 B20 HEAT SINK PMQ A8AN0UH 1EM426178 B21 MODULE HEAT SINK PMC P7150UT 1EM423968 BC1 PCB JUMPER D0 6 P5 0 JW5 0T BC2 PCB JUMPER D0 6 P5 0 JW5 0T BC3 PCB JUMPER D0 6 P5 0 JW5 0T BC4 CHIP INDUCTOR BK1608HS601 T LLC601NTU017 Ref No Description Part No BC601 BEADS INDUCTOR FBR07HA121SB 00 LLBF00STU030 BC636 PCB JUMPER D0 6 P5 0 JW5 ...

Page 55: ...Ref No Description Part No D418 SWITCHING DIODE 1SS133 T 77 QDTZ001SS133 D419 SWITCHING DIODE 1SS133 T 77 QDTZ001SS133 D422 SWITCHING DIODE 1SS133 T 77 QDTZ001SS133 D428 ZENER DIODE MTZJT 775 1B QDTB0MTZJ5R1 COILS L401B POWER INDUCTER RCR1616 471K LLC471KSF009 L403 CHOKE COIL 22µH K LLBD00PKV021 TRANSISTORS Q401 TRANSISTOR 2SA950 O TE2 F T QQS002SA950F Q402 TRANSISTOR KTC3199 GR AT P NQS4KTC3199P ...

Page 56: ...8AN5EL JUNCTION CBA Ref No Description Part No JUNCTION CBA Consists of the following CONNECTOR CN403A WIRE ASSEMBLY 12PIN WX1A8CN0 101 WX1A8CN0 101 MISCELLANEOUS CL403 242SERIESCONNECTORTUC P12X B1WHT ST JCTUB12TG002 ...

Page 57: ...erein without the obligation to notify any person or organization of such changes with the design is a registered trademark of Funai Electric Co Ltd and may not be used in any way without the express written consent of Funai All other trademarks used herein remain the exclusive property of their respective owners Nothing contained in this manual should be construed as granting by implication or ot...

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