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Sylvania 6615LDF Service Manual Download Page 51

WAVEFORMS < LCD TV SECTION >

L3150WF1

11-1

1DIV: 1.0V   10 s

1DIV: 1.0V   20 s

R392

WF1

1DIV: 1.0V   10 s
R394

WF5

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

WF1 ~ WF12 =  Waveforms to be observed at

Waveform check points.
(Shown in Schematic Diagram.)

1DIV: 1.0V   20ns
R365

WF2

R202

WF3

1DIV: 200mV   20 s
Pin 11 of CN103A

WF7

1DIV: 200mV   20 s
Pin 9 of CN103A

WF8

1DIV: 100mV   400 s
Pin 14 of IC801

WF6

1DIV: 1.0V   10 s
R201

WF4

1DIV: 200mV   20 s
Pin 7 of CN103A

WF9

1DIV: 200mV   20 s
Q704 Emitter

WF10

1DIV: 200mV   20 s
Q705 Emitter

WF11

1DIV: 200mV   20 s
Q706 Emitter

WF12

CLKH

CLKV

POL

LP

STH1

AUDIO

CVBS

S-VIDEO-Y

S-VIDEO-C

VIDEO-Y

VIDEO-Pb/Cb

VIDEO-Pr/Cr

Summary of Contents for 6615LDF

Page 1: ...SERVICE MANUAL 15 LCD TV DVD 6615LDF...

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: ...Description Condition Unit Nominal Limit 1 Intermediate Freq Picture Sound MHz MHz 45 75 41 25 2 Color Killer Sens CH 4 dB V 20 25 3 AFT Pull In Range 10 mV input MHz 2 1 0 7 Description Condition Uni...

Page 5: ...ion NOTES 1 All Items are measured without pre emphasis unless otherwise specified 2 Power supply AC120 V 60 Hz 3 Ambient temperature 25 C ITEM CONDITIONS UNIT NOMINAL LIMIT 1 Coaxial Digital Out 75 o...

Page 6: ...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 Location To...

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: ...ed 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 Measu...

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: ...cking 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 Rear Cabinet D1 6 S 1 2 S 2 4 S 3 Tilt...

Page 16: ...emoving the FFC cable CN201 from it If you disconnect the FFC cable CN201 the laser diode of pickup will be destroyed Fig D2 2 Disconnect Connectors CN301 CN401 CN601 and CN801 Remove three Screws S 6...

Page 17: ...A Short the three short lands by soldering Either of two places Connector 2 Jack Holder S 4 S 4 S 5 S 6 S 7B S 8 S 9 S 10 S 7A A 3 DVD Main CBA Unit 4 Loader PCB Holder 5 DVD Mechanism 6 DVD Holder R...

Page 18: ...5 4 L3150DC 9 LCD Main CBA Liquid Crystal Panel Unit 8 Main CBA 10 Function CBA 13 Front Cabinet 12 Speaker L 11 Speaker R S 11 S 11 S 11 S 11 S 12 S 12 S 12 S 12 S 13 S 15 S 14 S 14 S 12 Fig D3...

Page 19: ...N801 Function CBA Main CBA LCD Main CBA DVD Main CBA Unit To Speaker To Speaker CN103A CN101B CN102B CN103B CN311 CN601 CN301 CN201 CN801 CN401 CN1751 CN1651 CN1761 CN312 To Liquid Crystal Panel CN104...

Page 20: ...ot disconnect connectors 3 To remove the Chassis Cover remove 4 screws A as shown in Fig D5 4 Remove a disc Reassembly note of the Chassis Cover 1 Insert the pin A on the Chassis Cover into the hole A...

Page 21: ...ews from the back lid Fig 1 1 2 Cut off pin 10 of the remote control microprocessor and short circuit pins 10 and 17 of the microprocessor with a jumper wire How to set up the service mode Service mod...

Page 22: ...4 Press CH o p buttons on the remote control unit so that flash stops D2 BRT MENU 5 117 D2 CNT 144 D2 CLR R 82 D2 CLR B 82 D2 TNT 128 D2 SHR 35 D3 BRT MENU 6 120 D3 CNT 140 D3 CLR R 77 D3 CLR B 77 D3...

Page 23: ...e Service mode Press VOL p button on the remote control unit and select C D1 mode VIDEO2 Enter the Service mode Press VOL p button on the remote control unit and select C D2 mode 5 RF VIDEO1 When x va...

Page 24: ...button to 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 DISC MENU button on the service...

Page 25: ...it 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 F...

Page 26: ...DIO BLOCK DIAGRAM BACKLIGHT SW BACKLIGHT ADJ P ON H VOLUME AUDIO MUTE INPUT 0 INPUT 1 S SW SCL SDA CN102B CN102A SDA 2 SCL 1 CN112 NO CONNECTION IC171 MEMORY SCL 6 SDA 5 7 WP BUS OPEN 4 NO PART MOUNTE...

Page 27: ...BLOCK DIAGRAM CN103B VIDEO Y 5 VIDEO Pb Cb 3 VIDEO Pr Cr 1 3 IC781 INPUT SELECT 5 Q703 4 13 12 Q702 14 1 2 Q701 15 SW CONTROL 10 9 11 INPUT 0 INPUT 1 TO SYSTEM CONTROL BLOCK DIAGRAM Q707 Q708 Q704 Q70...

Page 28: ...DAC CN601 CN1701 4 3 2 5 SERIAL CONTROL PORT 4X 8X OVERSAMPLING DIGITAL FILTER FUNCTION CONTROLLER ENHANCED MULTI LEVEL DELTA SIGMA MODULATOR DAC LPF AMP L CH R CH LPF AMP DAC ZERO DETECT SYSTEM CLOC...

Page 29: ...R 4 2 ER 5 1 EG 0 50 EG 1 49 EG 2 48 EG 3 47 EG 4 46 EG 5 45 EB 0 43 EB 1 42 EB 2 41 EB 3 40 EB 4 39 EB 5 38 OFFEV 12 STV1 13 CLKV 14 HMS1 E 7 HMS1 0 13 STH1 42 POL 43 LP 44 CN311 170 60 52 74 169 166...

Page 30: ...R 3 3V 1 1 CN401 EV 1 2V 2 2 EV 1 2V 3 3 EV 3 3V D 4 4 EV 3 3V A 5 5 CN1761 EV 3 3V A 6 6 DVD ON 3 3V 7 7 DVD ON 5V 8 8 EV 9V 9 9 EV 9V 10 10 SENSOR 3 3V 25 25 EV 1 2V DVD ON 3 3V EV 3 3V D EV 3 3V A...

Page 31: ...Q405 Q408 Q407 Q427 BACKLIGHT SW Q403 MAIN CBA Q406 TO SYSTEM CONTROL BLOCK DIAGRAM LCD TV SECTION T402 1 OVER VOLTAGE PROTECTOR Q421 Q422 2 BACK LIGHT CN403 1 2 OVER VOLTAGE PROTECTOR Q423 Q424 LCD...

Page 32: ...6 143 SP ROT 146 FD OFST 139 TD OFST RESET IC461 2 1 3 3V TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM DRIVE CBA DVD MAIN CBA UNIT CN1761 LCD MAIN CBA UNIT CN401 1 DISC OUT 1 25 TREDCONTV 25 140 SL ADS DIS...

Page 33: ...T ROM DATA RAM INST ROM SERIAL D A GENERAL I O INTERRUPT CONTROLLER TIMER WATCH DOG TIMER REMOTE CONTROL 32BIT CPU STREAM I F EXTERNAL MEMORY I F SDRAM ECC UMAC 114 115 116 117 132 131 134 133 129 130...

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: ...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 are as shown be...

Page 36: ...gram L3150SCM1 MAIN 1 5 Ref No Position IC531 D 4 IC533 E 3 IC671 E 2 IC672 E 2 Q501 C 4 Q502 C 4 Q503 B 3 Q505 C 3 Q509 C 3 Q510 B 2 Q511 C 3 Q512 C 2 Q513 C 2 Q531 D 3 Q633 E 1 CN101A A 4 CN102A A 3...

Page 37: ...10 4 L3150SCM2 Main 2 5 Schematic Diagram MAIN 2 5 Ref No Position IC31 I 1 IC851 H 3 IC852 J 4 Q32 J 2 CN113 G 1 TRANSISTOR CONNECTOR ICS...

Page 38: ...1 P 3 IC801 N 2 Q701 N 3 Q702 N 3 Q703 N 3 Q704 P 1 Q705 O 1 Q706 P 1 Q707 P 2 Q708 P 2 Q802 O 1 Q803 N 1 Q804 O 2 Q1701 P 4 CN103A M 2 CN801 M 3 CN802 M 4 CN1701 R 4 TP1801 Q 4 TP1802 Q 4 TP1803 Q 4...

Page 39: ...ise it may cause some components in the power supply circuit to fail NOTE The voltage for parts in hot circuit is measured using hot GND as a common terminal For continued protection against risk of f...

Page 40: ...osition Q401 AA 2 Q403 Z 2 Q404 Z 3 Q405 AA 2 Q406 AA 2 Q407 Z 3 Q408 Z 4 Q409 Z 2 Q410 Z 3 Q411 AA 3 Q412 AA 3 Q415 AA 1 Q416 AA 1 Q421 AC 3 Q422 AC 3 Q423 AC 2 Q424 AB 1 Q427 AA 3 Q428 AA 2 CN402 AD...

Page 41: ...10 8 L3150SCF Function Schematic Diagram...

Page 42: ...10 9 L3150SCL1 LCD Main 1 2 Schematic Diagram LCD MAIN 1 2 Ref No Position IC333 B 3 Q301 D 1 CN102B A 4 CN104 A 3 CN111 A 2 CN211 F 4 CN311 F 4 CONNECTORS IC TRANSISTOR...

Page 43: ...ematic Diagram L3150SCL2 LCD MAIN 2 2 Ref No Position IC151 I 3 IC171 J 3 IC191 H 2 IC192 H 1 IC193 H 2 IC201 J 1 Q131 I 4 Q201 J 1 CN101B L 4 CN103B G 2 CN112 L 4 CN312 L 3 CN1751 H 4 CN1761 G 4 CONN...

Page 44: ...her IC461 or IC462 is used for DVD MAIN CBA UNIT DVD MAIN 1 3 Ref No Position IC201 C 1 IC202 D 4 IC301 D 3 IC461 F 1 IC462 E 1 Q251 C 2 Q252 B 2 Q253 C 2 Q254 B 2 Q801 B 1 Q802 B 1 Q804 B 1 CN201 A 3...

Page 45: ...10 12 DVD Main 2 3 Schematic Diagram L3150SCD2...

Page 46: ...0 96 128 1 7 1 7 PIN NO PLAY STOP PIN NO PLAY STOP PIN NO PLAY STOP PIN NO PLAY STOP 129 2 3 2 3 161 3 4 3 4 193 225 3 4 3 4 130 2 3 2 3 162 0 0 194 226 131 2 3 2 3 163 1 8 1 8 195 227 132 2 4 2 3 164...

Page 47: ...10 14 DVD Main 3 3 Schematic Diagram L3150SCD3 DVD MAIN 3 3 Ref No Position IC103 N 3 IC501 N 4 IC502 P 4 IC601 P 1 CN601 R 1 ICS CONNECTOR...

Page 48: ...f 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...

Page 49: ...d is present in the power supply circuit an isolation transformer must be used Also in order to have the ability to increase the input slowly when troubleshooting this type power supply circuit a vari...

Page 50: ...10 17 Function CBA Top View Function CBA Bottom View BL3150F01011 2...

Page 51: ...own in Schematic Diagram 1DIV 1 0V 20ns R365 WF2 R202 WF3 1DIV 200mV 20 s Pin 11 of CN103A WF7 1DIV 200mV 20 s Pin 9 of CN103A WF8 1DIV 100mV 400 s Pin 14 of IC801 WF6 1DIV 1 0V 10 s R201 WF4 1DIV 200...

Page 52: ...DE WF13 WF14 Pin 11 of CN1701 Pin 1 of CN1701 Pin 6 of CN1701 Pin 8 of CN1701 Pin 3 of CN1701 20 20 s 0 1V 0 1V DVD Y DVD Y DVD C DVD C 0 1V 0 1V 20 20 s DVD AUDIO L DVD AUDIO L 1V 1V 0 5ms 0 5ms DVD...

Page 53: ...15 17 CN103B 22 20 18 16 14 10 12 6 8 13 14 9 7 VIDEO Pb Cb S VIDEO C GND GND S VIDEO Y CVBS 5 1 3 4 2 GND GND GND VIDEO Y VIDEO Pr Cr GND GND AL 7V D BUS OPEN PROTECT 3 GND NU GND NU AL 3 3V A DVD M...

Page 54: ...rectly to the PCB DRIVE CBA DVD MECHANISM PICK UP UNIT SP 3 SP 4 TRAY IN 5 GND 6 SL 7 SL 8 FS 3 TS 4 GND CD PD 5 GND DVD PD 6 PD MONI 7 DVD LD 8 TS 1 FS 2 GND 11 F 12 VREF 13 E 14 B 15 C 16 GND LD 9 C...

Page 55: ...TIMING CHARTS Tray 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 Tray Close Play Play Tray Open Tray Close Disc Rotatio...

Page 56: ...BA1F4M T 2SA1175 F 2SC2120 O TE2 F T 2SD400 F 2SC2120 Y TPE2 Note A Anode K Cathode E Emitter C Collector B Base R Reference S Source G Gate D Drain KIA7805API 1 IN 2 GND 3 OUT 1 2 3 16 9 8 TC4053BF E...

Page 57: ...7 L2 L2 L7 A6 A9 S5 B30 A10 L21 L1 L1 B14 B14 B14 B4 B7 B22 B3 B34 B35 B35 B35 B18 B18 A4 B5 B5 L2 L21 L3 L3 B17 B33 B26 B25 B29 B24 L23 L14 L14 L23 B27 B32 B31 B28 A14 A15 L1 A16 SP801 SP802 CLN801 C...

Page 58: ...15 2 L3150PEX Packing S1 FRONT S2 S5 S4 Tape Tape Packing Tape Packing Tape Packing Tape S3 X1 X4 X3 Some Ref Numbers are not in sequence X2...

Page 59: ...UA 1EM420018A B28 FELT L3150UA 1EM420406A B29 RUBBER CUSHION NE300UD 1EM421580 B30 LASER CAUTION LABEL L3150UA B31 BASE HOLDER L L3150UA 1EM421403 B32 BASE HOLDER R L3150UA 1EM421404 B33 LOADER EARTH...

Page 60: ...470 C401 CHIP CERAMIC CAP 1608 B K 0 01 F 50V CHD1JK30B103 C403 ELECTROLYTIC CAP 220 F 16V M CE1CMASDL221 C404 ELECTROLYTIC CAP 2 2 F 50V M CE1JMASDL2R2 C406 CHIP CERAMIC CAP 1608 B K 0 01 F 50V CHD1J...

Page 61: ...F 50V M CE1JMASDL2R2 C811 ELECTROLYTIC CAP 100 F 16V M CE1CMASDL101 C812 CHIP CERAMIC CAP F Z 1 F 10V CHD1AZ30F105 C813 CHIP CERAMIC CAP F Z 1 F 10V CHD1AZ30F105 Ref No Description Part No C818 ELECTR...

Page 62: ...B322 NDWZ001N5397 D609 ZENER DIODE MTZJT 775 6B QDTB0MTZJ5R6 D611 ZENER DIODE MTZJT 7722B QDTB00MTZJ22 Ref No Description Part No D612 SWITCHING DIODE 1SS133 T 77 QDTZ001SS133 D613 SWITCHING DIODE 1SS...

Page 63: ...cription Part No Q708 TRANSISTOR 2SC4081 T106 Q QQ1Q02SC4081 Q802 TRANSISTOR 2SC2785 F QQSF02SC2785 Q803 TRANSISTOR 2SA1175 F QQSF02SA1175 Q804 TRANSISTOR 2SC2785 F QQSF02SC2785 Q1651 TRANSISTOR 2SA11...

Page 64: ...W K 1 2 RW031R2PG007 R603 CARBON RES 1 4W J 390k RCX4JATZ0394 R604 CARBON RES 1 4W J 390k RCX4JATZ0394 Ref No Description Part No R605 CARBON RES 1 4W J 390k RCX4JATZ0394 R606 PCB JUMPER D0 6 P5 0 JW5...

Page 65: ...JR5Z0123 R838 CHIP RES 1608 1 10W J 12k RRXAJR5Z0123 R839 CHIP RES 1608 1 10W J 12k RRXAJR5Z0123 Ref No Description Part No R842 CARBON RES 1 4W J 22k RCX4JATZ0223 R843 CARBON RES 1 4W J 22k RCX4JATZ0...

Page 66: ...D0 6 P7 5 JW7 5T TP1803 PCB JUMPER D0 6 P7 5 JW7 5T TP1804 PCB JUMPER D0 6 P5 0 JW5 0T TP1805 PCB JUMPER D0 6 P7 5 JW7 5T TP1806 PCB JUMPER D0 6 P7 5 JW7 5T TU1 TUNER UNIT TEFH9 002A UTUNNTUAL045 Ref...

Page 67: ...6615LDF L3150UA 2005 06 30...

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