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Sylvania 6626LDG A Service Manual Download Page 59

WAVEFORMS < LCD TV SECTION >

L4350WF

11-1

Input: NTSC Color Bar Signal (with 1kHz Audio Signal)

WF1 ~ WF7 =  Waveforms to be observed at

Waveform check points.
(Shown in Schematic Diagram.)

CVBS

0.2V

20

µ

s

WF1

Pin 2 of CN113

VIDEO-Y

0.2V

WF2

Pin 21 of CN114

20

µ

s

VIDEO-C

0.2V

WF3

Pin 22 of CN114

 

20

µ

s

AUDIO

0.1V

0.5ms

WF7

Pin 8 of CN151A

VIDEO-Pr

0.2V

20

µ

s

Pin 14 of CN114

WF6

VIDEO-Pb 

0.2V

20

µ

s

Pin 13 of CN114

WF5

VIDEO-Y

0.2V

20

µ

s

20

µ

s

Pin 11 of CN114

WF4

Summary of Contents for 6626LDG A

Page 1: ...SERVICE MANUAL 26 LCD TV DVD 6626LDG...

Page 2: ...IONS and NOTICES ARE NOT EXHAUSTIVE Funai could not possibly know evaluate and advice the service trade of all conceivable ways in which service might be done or of the possible hazardous consequences...

Page 3: ...y Instructions 5 1 Electrical Adjustment Instructions 6 1 How to Initialize the LCD TV DVD 7 1 Firmware Renewal Mode 8 1 Block Diagrams 9 1 Schematic Diagrams CBA s and Test Points 10 1 Waveforms 11 1...

Page 4: ...t MHz 2 4 2 1 Description Condition Unit Nominal Limit 1 Number of Pixels Horizontal Vertical pixels pixels 1366 3 768 2 Brightness cd m2 550 3 Response Time tr tf msec 25 4 Support Color 16 7 mil 8 b...

Page 5: ...e should a unit fail to meet limit specifications Description Condition Unit Nominal Limit 1 Horizontal Resolution TDV 540 TIT 2 CHP 16 Line 350 330 2 Video S N at CN3400 TDV 540 TIT 2 CHP 6 dB 60 55...

Page 6: ...n the diode is turned on Do not look directly at the laser beam CAUTION Use of controls and adjustments or doing procedures other than those specified herein may result in hazardous radiation exposure...

Page 7: ...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 8: ...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 9: ...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 10: ...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 11: ...With Hot Air Flat Pack IC Desoldering Machine 1 Prepare the hot air flat pack IC desoldering machine then apply hot air to the Flat Pack IC about 5 to 6 seconds Fig S 1 1 2 Remove the flat pack IC wi...

Page 12: ...ad of the flat pack IC upward one by 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...

Page 13: ...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...

Page 14: ...ed 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 surfa...

Page 15: ...Shield Box 5 DVD Cover 11 Jack Holder A 12 Chassis Bracket 17 Panel Holder 18 LCD Module 19 LED CBA 8 DVD Mechanism 7 DVD Main CBA Unit 21 Speaker L 20 Speaker R 22 Front Cabinet 9 Jack Holder D 6 Fu...

Page 16: ...move the DVD Main CBA Unit Fig D2 2 Reassembly Notes of New DVD Mechanism a To remove the Chassis Cover remove two screws A as shown in Fig D2 b To avoid damage of the pickup unit laser diode confirm...

Page 17: ...5 3 L4350DC 4 Rear Cabinet 6 Function CBA 5 DVD Cover 3 Stand Cover 2 Stand Hinge 1 Stand Base Plate S 5 S 7 S 6 S 6 S 1 S 2 S 2 S 2 S 3 S 3 S 4 S 4 S 4 S 4 S 4 S 4 S 4 S 4 Fig D1...

Page 18: ...BA Unit 8 DVD Mechanism DVD Holder R DVD Holder L A Chassis Cover Pin A A Hole A Main Chassis Remove two screws A then short the three short lands by soldering as shown in View for A Screws A View for...

Page 19: ...ck Holder D 10 Shield Box 11 Jack Holder A 12 Chassis Bracket S 14 S 11 S 13 S 12 S 12 N 1 S 14 S 14 S 14 S 14 Fig D3 13 Main CBA 16 DVD Holder S 15 PCB Holder 14 Digital Main CBA Unit S 15 S 16 S 17...

Page 20: ...5 6 L4350DC 17 Panel Holder 18 LCD Module 19 LED CBA 21 Speaker L 20 Speaker R 22 Front Cabinet S 19 S 20 S 19 S 19 S 19 S 20 S 20 S 21 S 22 S 23 S 20 S 19 S 19 Fig D5...

Page 21: ...CN401 CN111 CN1111 CN1112 CN1116 CN1801 CN1113 CN112 CN911 CN113 CN114 CN804 Function CBA DVD Mechanism DVD MAIN CBA Unit LED CBA Main CBA Digital Main CBA Unit To Speaker CN101 CN151 CN251 Fig D6 CN...

Page 22: ...Color Dot Pattern Gray Scale Monoscope Multi Burst 3 Remote control unit Part No NF013UD 4 Color Analyzer How to make Service remote control unit 1 Prepare normal remote control unit Part No NF013UD R...

Page 23: ...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 Enter the Service m...

Page 24: ...ice mode 3 To enter the Auto Calibration adjustment mode press 6 button on the service remote control unit 4 To start auto adjustment press CH o button on the service remote control unit In the auto a...

Page 25: ...go to TV mode or press POWER button to turn the power off LCD TV Section 1 Turn the power on Use main power on the TV unit 2 To enter the service mode press SLEEP button on the service remote control...

Page 26: ...t to put the LCD TV DVD into DVD mode again 9 Press 1 2 3 4 and DISPLAY buttons on the remote control unit in that order Fig g appears on the screen 10 Press CLEAR button on the remote control unit Fi...

Page 27: ...LED1 REMOTE LED2 21 3 BACKLIGHT SW 1 23 BACKLIGHT ADJ 2 22 CN1111 CN111 CN1112 CN112 17 32 14 15 31 3 60 23 22 5 1 56 X1101 I2C CLK A TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM C11 D16 C16 AH20 AJ20 AJ21...

Page 28: ...IDEO 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 IN2 19 5 BUFFER Q702 BUFFER Q701 BUFFER Q704 JK704 MUX MUX MATRIX VIDEO IN1 VIDEO IN2 VIDEO Y IN S VI...

Page 29: ...TX3 20 TX3 19 TXCLK 16 TXCLK 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 CLK A...

Page 30: ...UDIO 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 AUDIO R 15 9 13 14 1 5 2 15 13 14 1 5 2 15 IC1051 AUDIO A D CONVERTER BUFFER A D CONVER...

Page 31: ...ROTECT1 TO SYSTEM CONTROL BLOCK DIAGRAM 4A 125V EV 1 2V 4 4 EV 1 2V 5 5 EV 3 3V 6 6 EV 3 3V 7 7 CN911 CN401 EV 1 2V EV 3 3V DVD ON 3 3V DVD ON 5V EV 9V EV 3 3V EV 3 3V 8 8 DVD ON 5V 10 10 EV 10V 11 11...

Page 32: ...8 23 6 4 5 3 1 2 25 24 27 26 121 SP ROT 124 FD OFST 123 TD OFST RESET IC461 2 1 3 3V TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM DRIVE CBA DVD MAIN CBA UNIT CN911 MAIN CBA CN401 3 DISC OUT 3 2 LED CONT 2...

Page 33: ...T CPU STREAM I F EXTERNAL MEMORY I F SDRAM ECC UMAC 100 115 116 113 114 106 104 105 103 62 DEBUG BCU INST CACHE DATA CACHE D A 131 139 Y C DVD Y DVD C 152 SDRAM ADDRESS 0 10 IC103 FLASH ROM FLASH ROM...

Page 34: ...wings 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...

Page 35: ...aired 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 for PLAY and STOP modes on the schematics...

Page 36: ...1 1 7 0 8 0 1 9 0 1 10 0 11 3 1 12 3 9 13 0 14 0 3 15 2 6 16 0 2 17 0 3 18 0 19 2 6 20 0 5 21 2 7 22 0 5 23 2 3 CN114 1 0 2 3 3 4 4 1 0 5 3 4 6 7 0 8 3 3 9 3 3 10 0 11 1 7 12 0 13 1 7 14 1 6 15 0 16 1...

Page 37: ...2 Main 2 5 Schematic Diagram LCD TV Section CN113 1 0 2 1 8 3 0 4 1 8 5 1 8 6 0 7 1 8 8 0 9 6 1 10 6 1 11 0 12 6 0 13 6 0 14 0 15 6 0 16 6 0 17 0 18 6 0 19 6 0 20 0 21 5 4 22 5 4 23 0 VOLTAGE CHART Pi...

Page 38: ...Schematic Diagram LCD TV Section L4350SCM3 CN111 1 32 7 2 3 4 3 0 4 5 0 5 0 6 5 0 7 5 0 8 0 9 0 10 3 3 11 0 12 2 7 13 2 7 14 0 15 0 16 1 3 17 1 3 18 1 3 19 1 8 20 12 21 0 22 0 23 3 3 VOLTAGE CHART Pi...

Page 39: ...in 4 5 Schematic Diagram LCD TV Section CN251 1 24 3 2 24 3 3 24 3 4 24 3 5 24 3 6 0 7 0 8 0 9 10 0 11 0 12 2 7 CN252 1 24 3 2 24 3 3 24 3 4 24 3 5 24 3 6 0 7 0 8 0 9 0 10 0 VOLTAGE CHART Pin No Volta...

Page 40: ...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 voltage for parts in hot circ...

Page 41: ...10 8 L4350SCF Function Schematic Diagram LCD TV Section CN101 1 0 2 3 4 3 3 4 4 3 4 5 3 4 VOLTAGE CHART Pin No Voltage...

Page 42: ...10 9 L4350SCL LED Schematic Diagram LCD TV Section...

Page 43: ...10 10 L4350SCD1 Digital Main 1 9 Schematic Diagram LCD TV Section...

Page 44: ...10 11 L4350SCD2 Digital Main 2 9 Schematic Diagram LCD TV Section...

Page 45: ...9 Schematic Diagram LCD TV Section 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...

Page 46: ...9 Schematic Diagram LCD TV Section 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...

Page 47: ...c Diagram LCD TV Section L4350SCD5 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...

Page 48: ...10 15 L4350SCD6 Digital Main 6 9 Schematic Diagram LCD TV Section...

Page 49: ...c Diagram LCD TV Section L4350SCD7 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...

Page 50: ...10 17 Digital Main 8 9 Schematic Diagram LCD TV Section L4350SCD8...

Page 51: ...10 18 Digital Main 9 9 Schematic Diagram LCD TV Section L4350SCD9...

Page 52: ...10 19 DVD Main 1 3 Schematic Diagram DVD Section L4350SCDT1 1 NOTE Either IC461 or IC462 is used for DVD MAIN CBA UNIT...

Page 53: ...10 20 DVD Main 2 3 Schematic Diagram DVD Section L4350SCDT2...

Page 54: ...10 21 DVD Main 3 3 Schematic Diagram DVD Section L4350SCDT3...

Page 55: ...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 56: ...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 57: ...10 24 Function CBA Top View Function CBA Bottom View BL4300F01012 2...

Page 58: ...10 25 LED CBA Top View LED CBA Bottom View BL4300F01012 3...

Page 59: ...at Waveform 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...

Page 60: ...r on Stop MODE WF8 WF12 Waveforms to be observed at Waveform check points Shown in Schematic Diagram WF8 Pin 1 of CN1801 WF9 Pin 3 of CN1801 WF10 Pin 5 of CN1801 Pin 9 of CN1801 WF12 Pin 7 of CN1801 W...

Page 61: ...17 22 20 18 16 14 10 12 6 8 13 11 9 7 5 1 3 4 2 GND GND AUDIO L 2 AUDIO R 2 GND TUNER AUDIO L HDMI AUDIO L IN TUNER AUDIO R GND HDMI AUDIO R IN DVD AUDIO R GND DVD AUDIO L GND S VIDEO C IN2 VIDEO IN2...

Page 62: ...ECHANISM PICK UP UNIT LOAD DISC 6 SL 5 SL 4 GND 3 SP 2 SP 1 FS 3 TS 4 GND CD PD 5 GND DVD PD 6 PD MONI 7 DVD LD 8 TS 1 FS 2 GND 11 NU 12 VREF 13 NU 14 B 15 C 16 GND LD 9 CD LD 10 A 17 D 18 CD DVD 19 D...

Page 63: ...TROL TIMING CHARTS Disc IN TL221 Sled Drive TP303 Disc Drive TP301 Focus Drive TP304 Tracking Drive TP302 0V 3 3V 0V 1 65V 0V 0V 0V 1 65V 1 65V 1 65V Disc In Disc Rotation Play Disc Stop Disc Out Disc...

Page 64: ...GND 3 OUT 1 2 3 B C E G D S 2SK3563 PQ018EF01SZH PQ033EF01SZH PQ070XF01SZH KRC103M AT P KTA1267 GR AT P KTC3199 GR AT P 2SA950 O TE2 F T 2SC2120 O TE2 F T Note A Anode K Cathode E Emitter C Collector...

Page 65: ...801 L5 L5 L2 L2 L2 L2 L2 L2 L2 L6 L7 L7 L7 L1 L1 L1 L1 L12 B23 L1 B22 L8 L8 B21 B30 B24 L14 L14 L4 L4 L3 L3 L3 L8 L8 L8 L8 L13 L13 L10 L10 L10 L8 L8 L6 L3 L3 L1 L1 L7 L5 B13 B13 L3 B13 B12 L3 See Elec...

Page 66: ...15 2 L4350PEX Packing S1 S2 S24 S4 Tape Packing Tape Packing Tape Packing Tape Packing Tape Packing Tape Packing Tape S3 S6 X1 X4 X3 Some Ref Numbers are not in sequence X2 FRONT S5...

Page 67: ...VD HOLDER S L4350UA 1EM322345 B24 CLOTH 10X30XT0 5 B5900UA 0EM404486 B30 LASER CAUTION LABEL L3150UA CL911 WIRE ASSEMBLY 26PIN FFC 26PIN 398MM WX1L4350 001 CL1801 WIRE ASSEMBLY 9PIN FFC 9PIN 300MM WX1...

Page 68: ...ECTROLYTIC CAP 0 1 F 50V M CE1JMASDL0R1 C531 CERAMIC CAP AX B K 470pF 50V CCA1JKT0B471 C532 ALUMINUMELECTROLYTIC CAP 4700 F 6 3V M CE0KMZNTM472 C533 CHIP CERAMIC CAP 1608 F Z 0 01 F 25V CHD1EZ30F103 C...

Page 69: ...CA1J104MS029 C807 ELECTROLYTIC CAP 100 F 25V M CA1E101SP085 C809 ELECTROLYTIC CAP 3 3 F 50V M CA1J3R3SP085 C810 ELECTROLYTIC CAP 10 F 50V M CA1J100SP085 Ref No Description Part No C811 ELECTROLYTIC C...

Page 70: ...01SZH QSZBA0SSH054 COILS L501 PCB JUMPER D0 6 P5 0 JW5 0T Ref No Description Part No L532 POWER INDUCTOR RCR1616 470M LLC470MSF009 L533 RADIAL TYPE CHOKE COIL CW68 470K 841040NP LLBD00PKV023 L534 INDU...

Page 71: ...IP RES 1 10W F 18k RRXAFR5H1802 R510 CARBON RES 1 4W J 820 RCX4JATZ0821 Ref No Description Part No R511 CHIP RES 1 10W J 22k RRXAJR5Z0223 R512 CHIP RES 1 10W F 2 2k RRXAFR5H2201 R513 CHIP RES 1 10W J...

Page 72: ...4 PCB JUMPER D0 6 P5 0 JW5 0T R745 CARBON RES 1 4W J 22 RCX4JATZ0220 Ref No Description Part No R746 CARBON RES 1 4W J 22 RCX4JATZ0220 R747 CHIP RES 1608 1 10W F 75 RRXAFR5H75R0 R748 CHIP RES 1608 1 1...

Page 73: ...CHIP CERAMIC CAP 1608 F Z 0 1 F 50V CHD1JZ30F104 C103 CHIP CERAMIC CAP 1608 F Z 0 1 F 50V CHD1JZ30F104 C104 CHIP CERAMIC CAP 1608 F Z 0 1 F 50V CHD1JZ30F104 CONNECTOR CN101 PH CONNECTOR SIDE 5P S5B PH...

Page 74: ...6626LDG L4350UA 2006 11 09...

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