manualshive.com logo in svg

Sylvania 6637LCT A, Service Manual

Share
Download
Sylvania 6637LCT A Service Manual Download Page 1

SERVICE MANUAL

37

″

 COLOR LCD TELEVISION

6637LCT

Summary of Contents for 6637LCT A

Page 1: ...SERVICE MANUAL 37 COLOR LCD TELEVISION 6637LCT...

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...

Page 3: ...1 Received Freq Range 28dBm kHz kHz 100 100 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 Number of Pixels Horizontal Vertical pi...

Page 4: ...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 spe...

Page 5: ...m 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 tou...

Page 6: ...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 as...

Page 7: ...s H When a power cord has been replaced check that 5 6 kg of force in any direction will not loosen it I Also check areas surrounding repaired locations J Use care that foreign objects screws solder d...

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...

Page 9: ...he 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 p...

Page 10: ...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...

Page 11: ...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 b...

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 M on the workbench or other surfac...

Page 13: ...Stand Base Plate D1 4 S 1 6 S 2 5 S 3 2 Stand Hinge D1 3 Stand Cover D1 4 Rear Cabinet D1 10 S 4 4 S 5 5 Function CBA D1 D5 3 S 6 CN101 6 Stand Holder D2 2 S 7 2 S 8 7 Chassis Bracket D2 10 S 9 8 Jac...

Page 14: ...4 2 L5005DC 4 Rear Cabinet 5 Function CBA 3 Stand Cover 2 Stand Hinge 1 Stand Base Plate S 5 S 6 S 1 S 2 S 2 S 3 S 4 S 4 S 4 S 4 S 4 S 4 S 4 S 4 Fig D1...

Page 15: ...der D 10 Shield Box 9 Jack Holder A 7 Chassis Bracket 6 Stand Holder S 7 S 9 S 10 S 11 S 12 N 1 S 8 S 9 S 9 S 9 S 12 Fig D2 11 Main CBA 13 PCB Holder 12 Digital Main CBA Unit S 13 S 13 S 14 S 15 S 15...

Page 16: ...Inverter CBA 14 Panel Holder UD 17 LCD Module Assembly 18 LED CBA 20 Speaker L 19 Speaker R 21 Front Cabinet S 17 S 20 S 18 S 17 S 17 S 18 S 18 S 22 S 23 S 24 S 18 S 17 S 17 S 21 S 21 S 21 S 21 15 T...

Page 17: ...CN114 CN804 Function CBA LED CBA Main CBA Digital Main CBA Unit To Speaker CN101 CN151 Fig D5 CN1121 CN1505 CN151A CN803 CN253 CN1000 CN1050 CN1100 CN1150 CN1200 CN1250 CN1300 CN1350 CN1400 Inverter...

Page 18: ...n Generator Color Bar W White Window Red Color Dot Pattern Gray Scale Monoscope Multi Burst 3 Remote control unit Part No N0105UD or N0127UD 4 Color Analyzer How to make Service remote control unit 1...

Page 19: ...er 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...

Page 20: ...press CH o button on the service remote control unit Upon completion Calibration Check OK and Push FCH UP key appear on the screen If the auto adjustment failure Calibration Check NG and Push FCH UP k...

Page 21: ...ol unit Refer to ELECTRICAL ADJUSTMENT INSTRUCTIONS section 3 To enter the service mode press SLEEP button on the service remote control unit To cancel the service mode press TV POWER button on the re...

Page 22: ...GHT SW TO AUDIO BLOCK DIAGRAM TO AUDIO BLOCK DIAGRAM PROTECT1 VOLUME AMP MUTE AUDIO SW0 AUDIO SW1 AUDIO SW2 AMP MUTE AUDIO SW0 AUDIO SW1 AUDIO SW2 AUDIO MUTE AUDIO MUTE LED1 4 4 CN151A REMOTE 2 2 LED2...

Page 23: ...1 2 22 VIDEO IN2 7 17 S VIDEO Y IN2 4 20 S VIDEO C IN2 5 19 S VIDEO Y IN1 21 3 S VIDEO C IN1 22 2 VIDEO Y IN1 11 13 VIDEO Pb IN1 13 11 VIDEO Pr IN1 14 10 VIDEO Y IN2 16 8 VIDEO Pb IN2 18 6 VIDEO Pr IN...

Page 24: ...11 TX3 20 TX3 19 TX CLK 16 TX CLK 15 LVDS TX PLL A D CONVERTER DIGITAL SIGNAL PROCESS DAC OSCLK DAC OSCLK HDMI BCLK HDMI LRCLK HDMI SDATA AD DATA DAC BCLK DAC LRCLK DAC DATA SPDIF AUDIO INTERFACE I2C...

Page 25: ...014 BUFFER Q1013 BUFFER Q1008 BUFFER Q1010 Q1009 BUFFER Q1515 BUFFER AUDIO L 2 19 5 AUDIO R 2 18 6 AUDIO L 1 2 22 AUDIO R 1 3 21 HDMI AUDIO L IN 13 11 HDMI AUDIO R IN 12 12 TUNER AUDIO L 16 8 TUNER AU...

Page 26: ...ROTECT1 INV 24V BACKLIGHT SW BACKLIGHT ADJ TO SYSTEM CONTROL BLOCK DIAGRAM PROTECT1 18 3 5V REG Q1000 2 1 3 13 12 9 10 6 5 14 8 7 IC1000 INVERTER CONTROL 2 1 3 13 12 9 10 6 5 14 8 7 V REF Q1002 Q1003...

Page 27: ...2 1 Q632 SWITCHING CONTROL TO DIGITAL MAIN CBA UNIT CN1111 PROTECT1 TO SYSTEM CONTROL BLOCK DIAGRAM 4A 125V STBY 3 3V SOFT START FEED BACK OUT OVER VOLTAGE PROTECT 1 2 5 7 12V Q501 12V REG Q502 P ON H...

Page 28: ...ings for ordering The correct part number is shown in the parts list and may be slightly different or amended since these drawings were prepared 2 All resistance values are indicated in ohms K 103 M 1...

Page 29: ...ended 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...

Page 30: ...9 5 3 3 6 7 0 8 3 3 9 3 3 10 0 11 1 6 12 0 13 1 6 14 1 6 15 0 16 1 6 17 0 18 1 6 19 1 6 20 0 21 1 6 22 1 6 23 0 CN112 1 0 2 3 2 3 3 2 4 3 2 5 0 6 0 8 7 0 8 0 9 0 10 0 11 12 13 14 15 16 17 18 19 20 21...

Page 31: ...4 L5007SCM2 Main 2 5 Schematic Diagram CN113 1 0 2 1 6 3 0 4 1 6 5 1 6 6 0 7 1 6 8 0 9 10 11 0 12 2 4 13 2 4 14 0 15 2 5 16 2 5 17 0 18 2 5 19 2 5 20 0 21 5 1 22 5 1 23 0 VOLTAGE CHART Pin No Voltage...

Page 32: ...Main 3 5 Schematic Diagram L5007SCM3 CN111 1 32 2 2 3 3 3 0 4 4 9 5 0 6 7 8 0 9 0 10 3 3 11 0 12 2 6 13 2 6 14 0 15 0 16 1 2 17 1 2 18 1 2 19 1 7 20 11 5 21 0 22 3 3 23 3 3 VOLTAGE CHART Pin No Volta...

Page 33: ...8 6 L5007SCM4 Main 4 5 Schematic Diagram...

Page 34: ...ircuit 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 NOTE The voltage for parts in hot circuit is m...

Page 35: ...8 8 L5007SCF Function Schematic Diagram CN101 1 0 2 3 3 3 3 3 4 3 3 5 3 3 VOLTAGE CHART Pin No Voltage...

Page 36: ...8 9 L5007SCL LED Schematic Diagram...

Page 37: ...8 10 L5007SCINV Inverter Schematic Diagram...

Page 38: ...8 11 L5007SCD1 Digital Main 1 8 Schematic Diagram...

Page 39: ...8 12 L5007SCD2 Digital Main 2 8 Schematic Diagram...

Page 40: ...Main 3 8 Schematic Diagram 1 NOTE The order of pins shown in this diagram is different from that of actual IC1504 IC1504 is divided into four and shown as IC1504 1 4 IC1504 4 4 in this Digital Main Sc...

Page 41: ...Main 4 8 Schematic Diagram 1 NOTE The order of pins shown in this diagram is different from that of actual IC1504 IC1504 is divided into four and shown as IC1504 1 4 IC1504 4 4 in this Digital Main Sc...

Page 42: ...chematic Diagram L5007SCD5 1 NOTE The order of pins shown in this diagram is different from that of actual IC1504 IC1504 is divided into four and shown as IC1504 1 4 IC1504 4 4 in this Digital Main Sc...

Page 43: ...8 16 L5007SCD6 Digital Main 6 8 Schematic Diagram...

Page 44: ...chematic Diagram L5007SCD7 1 NOTE The order of pins shown in this diagram is different from that of actual IC1504 IC1504 is divided into four and shown as IC1504 1 4 IC1504 4 4 in this Digital Main Sc...

Page 45: ...8 18 Digital Main 8 8 Schematic Diagram L5007SCD8...

Page 46: ...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 NOTE The v...

Page 47: ...cuit 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 m...

Page 48: ...8 21 Function CBA Top View Function CBA Bottom View BL5000F01012 2...

Page 49: ...8 22 LED CBA Top View LED CBA Bottom View BL5000F01012 3...

Page 50: ...8 23 Inverter CBA Top View BL5000F01021...

Page 51: ...8 24 Inverter CBA Bottom View BL5000F01021...

Page 52: ...orm check points Shown in Schematic Diagram CVBS 0 2V 20 s WF1 Pin 2 of CN113 VIDEO Y 0 2V WF2 Pin 21 of CN114 20 s VIDEO C 0 2V WF3 Pin 22 of CN114 20 s AUDIO 0 1V 0 5ms WF7 Pin 8 of CN151A VIDEO Pr...

Page 53: ...GND S VIDEO C IN2 VIDEO IN2 GND S VIDEO Y IN2 GND GND VIDEO IN1 AUDIO L 1 AUDIO R 1 23 21 22 19 20 17 18 16 15 14 11 12 13 10 9 7 8 5 6 3 4 2 1 GND GND VIDEO Pr IN2 VIDEO Pb IN2 GND VIDEO Y IN2 VIDEO...

Page 54: ...ith this mark A1 A2 A5 L5 L5 L5 B1 B2 L8 L1 L1 L1 B16 B16 L8 L8 B1 L8 L8 L8 L1 L1 L1 B5 B9 B9 B11 B10 L3 A4 L2 L9 L4 L4 L4 L4 B18 B18 L6 L6 L2 L2 L2 L2 L2 L2 L5 A7 A3 L2 A6 B4 B4 B20 L8 L8 L8 L8 L13 L...

Page 55: ...acking S1 S2 S2 S5 Tape Packing Tape Packing Tape PP BAND Packing Tape Packing Tape Packing Tape Packing Tape Packing Tape S3 S3 S9 S6 S4 X1 X4 X3 Some Ref Numbers are not in sequence X2 FRONT FRONT P...

Page 56: ...OTH 20X65XT0 5 L0100JA 0EM407914 B20 STAND HOLDER L5001CB 1EM221397 B22 GRAND TAPE L4400UA 1EM423347 B28 CLOTH 10X30XT0 5 B5900UA 0EM404486 CLN112 WIRE ASSEMBLY 010 WX1L5001 010 WX1L5001 010 CLN253 WI...

Page 57: ...LYTIC CAP 2200 F 35V M CE1GMZNTM222 C510 ELECTROLYTIC CAP 470 F 16V M CA1C471SP085 C511 ELECTROLYTIC CAP 0 1 F 50V M CE1JMASDL0R1 C513 ALUMINUM ELECTROLYTIC CAP 2200 F 35V M CE1GMZNTM222 C531 CERAMIC...

Page 58: ...RAMIC CAP AX B K 0 01 F 50V CA1J103TU011 C807 ELECTROLYTIC CAP 100 F 25V M CA1E101SP085 C808 CERAMIC CAP AX B K 0 01 F 50V CA1J103TU011 C809 ELECTROLYTIC CAP 3 3 F 50V M CA1J3R3SP085 Ref No Descriptio...

Page 59: ...FET 2SK3568 Q QQQZ02SK3568 Q603 TRANSISTOR KTC3199 GR AT P NQS4KTC3199P Q631 MOS FET 2SK3563 QFWZ02SK3563 Ref No Description Part No Q632 TRANSISTOR 2SC2120 O TE2 F T QQS02SC2120F Q701 TRANSISTOR KTC3...

Page 60: ...R563 CHIP RES 1 10W J 22k RRXAJR5Z0223 R565 CARBON RES 1 4W J 10k RCX4JATZ0103 Ref No Description Part No R566 CHIP RES 1 10W J 47k RRXAJR5Z0473 R567 CARBON RES 1 4W J 1 5k RCX4JATZ0152 R568 CARBON RE...

Page 61: ...J 33pF 50V CHD1JJ3CH330 R783 CHIP RES 1 10W J 33k RRXAJR5Z0333 Ref No Description Part No R784 CHIP RES 1 10W J 39k RRXAJR5Z0393 R785 CHIP RES 1 10W J 390 RRXAJR5Z0391 R786 CHIP RES 1608 1 10W 0 RRXAJ...

Page 62: ...53HT RESISTORS R151 CHIP RES 1 10W J 220 RRXAJR5Z0221 R152 CHIP RES 1 10W J 220 RRXAJR5Z0221 R153 CARBON RES 1 4W J 1k RCX4JATZ0102 R154 CHIP RES 1 10W J 3 3k RRXAJR5Z0332 R155 CHIP RES 1 10W J 100 RR...

Page 63: ...11 CERAMIC CAP SL D 10pF 3KV CCD3FDASL100 C1412 CHIP CERAMIC CAP B K 1500pF 50V CHD1JK30B152 C1413 CHIP CERAMIC CAP B K 2200pF 50V CHD1JK30B222 C1414 CERAMIC CAP SL D 10pF 3KV CCD3FDASL100 Ref No Desc...

Page 64: ...ING DIODE 1SS133 T 77 QDTZ001SS133 D1553 SWITCHING DIODE 1SS133 T 77 QDTZ001SS133 D1600 SWITCHING DIODE 1SS133 T 77 QDTZ001SS133 D1601 SWITCHING DIODE 1SS133 T 77 QDTZ001SS133 D1701 ZENER DIODE MTZJT...

Page 65: ...ES 1 10W J 1k RRXAJR5Z0102 R1300 CHIP RES 1 10W J 33 RRXAJR5Z0330 Ref No Description Part No R1301 CHIP RES 1 10W J 33 RRXAJR5Z0330 R1302 CHIP RES 1 10W J 33 RRXAJR5Z0330 R1303 CHIP RES 1 10W J 33 RRX...

Page 66: ...W17 5T BC1150 PCB JUMPER D0 6 P10 0 JW10 0T BC1151 PCB JUMPER D0 6 P10 0 JW10 0T BC1200 PCB JUMPER D0 6 P10 0 JW10 0T BC1201 PCB JUMPER D0 6 P10 0 JW10 0T BC1250 PCB JUMPER D0 6 P10 0 JW10 0T BC1251 P...

Page 67: ...6637LCT L5007UH 2006 12 11...

Reviews:

No comments

Brands by name

Popular brands

Load more brands