Sylvania 6615LDF Service Manual
Sylvania 6615LDF Service Manual

Sylvania 6615LDF Service Manual

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SERVICE MANUAL
15" LCD TV/DVD
6615LDF

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Table of Contents
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Summary of Contents for Sylvania 6615LDF

  • Page 1 SERVICE MANUAL 15″ LCD TV/DVD 6615LDF...
  • Page 2 IMPORTANT SAFETY NOTICE Proper service and repair is important to the safe, reliable operation of all Funai Equipment. The service procedures recommended by Funai and described in this service manual are effective methods of performing service operations. Some of these service special tools should be used when and as recommended.
  • Page 3: Table Of Contents

    TABLE OF CONTENTS Specifications ................1-1 Laser Beam Safety Precautions .
  • Page 4: Specifications

    SPECIFICATIONS < LCD TV Section > < TUNER > ANT. Input ---------------------- 75 ohm Unbal., F type Reference Level--------------- 20 Vp-p (LCD Green Cathode) Test Input Signal -------------- 400 Hz 30% modulation Description Condition Unit Nominal Limit Picture 45.75 1. Intermediate Freq. Sound 41.25 2.
  • Page 5 <DVD Section> ITEM CONDITIONS UNIT NOMINAL LIMIT 1. Coaxial Digital Out 75 ohm load mVpp ± 100 NOTES: 1. All Items are measured without pre-emphasis unless otherwise specified. 2. Power supply : AC120 V 60 Hz ° 3. Ambient temperature: +25 L3150SP...
  • Page 6: Laser Beam Safety Precautions

    LASER BEAM SAFETY PRECAUTIONS This DVD player uses a pickup that emits a laser beam. Do not look directly at the laser beam coming from the pickup or allow it to strike against your skin. The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep your eyes at least 30 cm away from the pickup lens when the diode is turned on.
  • Page 7: Important Safety Precautions

    IMPORTANT SAFETY PRECAUTIONS Prior to shipment from the factory, our products are strictly inspected for recognized product safety and electrical codes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the following precautions when a set is being serviced.
  • Page 8 3. Design Alteration Warning - Do not alter or add 7. Product Safety Notice - Some electrical and to the mechanical or electrical design of this TV mechanical parts have special safety-related receiver. Design alterations and additions, characteristics which are often not evident from including, but not limited to circuit modifications visual inspection, nor can the protection they give and the addition of items such as auxiliary audio...
  • Page 9 Precautions during Servicing A. Parts identified by the # symbol are critical for L. When connecting or disconnecting the internal safety. connectors, first, disconnect the AC plug from the Replace only with part number specified. AC supply outlet. B. In addition to safety, other parts and assemblies M.
  • Page 10 Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original positions. Afterwards, perform the following tests and confirm the specified values in order to verify compliance with safety standards. 1.
  • Page 11: Standard Notes For Servicing

    STANDARD NOTES FOR SERVICING Circuit Board Indications Pb (Lead) Free Solder 1. The output pin of the 3 pin Regulator ICs is Pb free mark will be found on PCBs which use Pb indicated as shown. free solder. (Refer to figure.) For PCBs with Pb free mark, be sure to use Pb free solder.
  • Page 12 around the flat pack-IC to protect other parts from With Soldering Iron: damage. (Fig. S-1-2) 1. Using desoldering braid, remove the solder from 3. The flat pack-IC on the CBA is affixed with glue, so all pins of the flat pack-IC. When you use solder be careful not to break or damage the foil of each flux which is applied to all pins of the flat pack-IC, pin or the solder lands under the IC when...
  • Page 13 2. Installation With Iron Wire: 1. Using desoldering braid, remove the solder from 1. Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder the foil of each pin of the flat pack-IC on the CBA flux which is applied to all pins of the flat pack-IC, so you can install a replacement flat pack-IC more you can remove it easily.
  • Page 14 Instructions for Handling Semi- conductors Electrostatic breakdown of the semi-conductors may occur due to a potential difference caused by electrostatic charge during unpacking or repair work. 1. Ground for Human Body Be sure to wear a grounding band (1 MΩ) that is properly grounded to remove any static electricity that may be charged on the body.
  • Page 15: Cabinet Disassembly Instructions

    CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart Removal Step/ This flowchart indicates the disassembly steps for the Remove/*Unhook/ Loc. Part Fig. Unlock/Release/ cabinet parts, and the CBA in order to gain access to Note Unplug/Unclamp/ item(s) to be serviced. When reassembling, follow the Desolder steps in reverse order.
  • Page 16 Reference Notes 2) Disconnect Connectors (CN301), (CN401), (CN601) and (CN801). Remove three Screws 1. CAUTION 1: Electrostatic breakdown of the laser (S-6) and remove the DVD Main CBA Unit. diode in the optical system block may occur as a (Fig. D2) potential difference caused by electrostatic charge 2.
  • Page 17 [6] DVD Holder(R) [2] Jack Holder [5] DVD Mechanism (S-9) (S-4) (S-10) (S-8) [7] DVD Holder(L) (S-5) (S-7B) (S-4) Short the three short lands by soldering. (Either of two places.) (S-7A) [4] Loader (S-6) PCB Holder [3] DVD Main CBA Unit View for A Connector Fig.
  • Page 18 [13] Front Cabinet [11] Speaker(R) (S-14) (S-12) (S-12) [8] Main CBA (S-14) (S-13) [10] Function CBA (S-12) (S-11) (S-12) (S-11) (S-15) [12] Speaker(L) (S-12) (S-11) (S-11) [9] LCD Main CBA & Liquid Crystal Panel Unit Fig. D3 L3150DC...
  • Page 19 TV Cable Wiring Diagram To Liquid To DVD Mechanism Crystal Function CBA Panel CLN104 CN104 CN311 CN312 CN201 CN301 CN1751 LCD Main CBA CN801 CN601 CN1761 CN401 CN102B CN103B DVD Main CN101B CBA Unit Main CBA CN113 CN1701 CN402 CN103A CN102A CN101A CN403...
  • Page 20 3. How to Eject Manually 1. Remove the Rear Cabinet. 2. To remove the Loader PCB Holder with the DVD Main CBA Unit, remove three screws (S-7) in Fig. D2. Do not disconnect connectors. 3. To remove the Chassis Cover, remove 4 screws A as shown in Fig.
  • Page 21: Electrical Adjustment Instructions

    ELECTRICAL ADJUSTMENT INSTRUCTIONS General Note: “CBA” is abbreviation for How to set up the service mode: “Circuit Board Assembly.” Service mode: Note: Electrical adjustments are required after 1. Use the service remote control unit. replacing circuit components and certain mechanical parts. It is important to perform 2.
  • Page 22 3. If Flicker Adjustment is not fit, the screen becomes Button the following. [Use the attached Data Item remote control unit. Value (not service remote control unit)] VCOM D2-BRT D2-CNT D2-CLR-R [MENU] → [5] D2-CLR-B D2-TNT D2-SHR D3-BRT D3-CNT FLASH (Go and Off) D3-CLR-R [MENU] →...
  • Page 23 The following adjustment normally are not 5. [RF/VIDEO1] attempted in the field. Only when replacing the When “x” value and “y” value are not within LCD Panel then adjust as a preparation. specification, adjust “DB (C/D1)” or “DR (C/D1)”. Refer to “1. Initial Setting.” 3.
  • Page 24: How To Initialize The Lcd Tv/Dvd

    HOW TO INITIALIZE THE LCD TV/DVD To put the program back at the factory-default, initialize the LCD TV/DVD as the following procedure. < DVD Section > < LCD TV Section > 1. Press [1], [2], [3], [4], and [DISPLAY] buttons on the 1.
  • Page 25: Firmware Renewal Mode

    FIRMWARE RENEWAL MODE 1. Turn the power on and press [EJECT] button on the 5. After programming is finished, the disc will be remote control unit to put the LCD TV/DVD into ejected automatically. Fig. e appears on the screen DVD mode.
  • Page 26: Block Diagrams

    BLOCK DIAGRAMS < LCD TV SECTION > System Control Block Diagram L3150BLS...
  • Page 27 IF/Video Block Diagram L3150BLIF...
  • Page 28 Audio Block Diagram L3150BLA...
  • Page 29 LCD Block Diagram L3150BLLCD...
  • Page 30 Power Supply Block Diagram L3150BLP...
  • Page 31 LCD Backlight Block Diagram L3150BLLB...
  • Page 32 BLOCK DIAGRAMS < DVD SECTION > System Control / Servo Block Diagram L3150BLSD...
  • Page 33 Digital Signal Process Block Diagram L3150BLD...
  • Page 34: Schematic Diagrams / Cba's And Test Points

    SCHEMATIC DIAGRAMS / CBA'S AND TEST POINTS Standard Notes Many electrical and mechanical parts in this chassis have special characteristics. These characteristics often pass unnoticed and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts that have these special safety characteristics are identified in this manual and its supplements;...
  • Page 35 LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES: 1. CAUTION: CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE_A,_V FUSE. ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MÊME TYPE DE_A,_V. 2.
  • Page 36 Main 1/5 Schematic Diagram MAIN 1/5 Ref No. Position IC531 IC533 IC671 IC672 TRANSISTORS Q501 Q502 Q503 Q505 Q509 Q510 Q511 Q512 Q513 Q531 Q633 CONNECTORS CN101A CN102A L3150SCM1 10-3...
  • Page 37 Main 2/5 Schematic Diagram MAIN 2/5 Ref No. Position IC31 IC851 IC852 TRANSISTOR CONNECTOR CN113 10-4 L3150SCM2...
  • Page 38 Main 3/5 Schematic Diagram MAIN 3/5 Ref No. Position IC781 IC801 TRANSISTORS Q701 Q702 Q703 Q704 Q705 Q706 Q707 Q708 Q802 Q803 Q804 Q1701 CONNECTORS CN103A CN801 CN802 CN1701 TEST POINTS TP1801 TP1802 TP1803 TP1804 TP1805 TP1806 10-5 L3150SCM3...
  • Page 39 Main 4/5 Schematic Diagram NOTE: CAUTION ! The voltage for parts in hot circuit is measured using Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. CAUTION ! : For continued protection against risk of fire, hot GND as a common terminal.
  • Page 40 Main 5/5 Schematic Diagram MAIN5/5 Ref No. Position TRANSISTORS Q401 AA-2 Q403 Q404 Q405 AA-2 Q406 AA-2 Q407 Q408 Q409 Q410 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 CONNECTORS CN402...
  • Page 41 Function Schematic Diagram L3150SCF 10-8...
  • Page 42 LCD Main 1/2 Schematic Diagram LCD MAIN 1/2 Ref No. Position IC333 TRANSISTOR Q301 CONNECTORS CN102B CN104 CN111 CN211 CN311 L3150SCL1 10-9...
  • Page 43 LCD Main 2/2 Schematic Diagram LCD MAIN 2/2 Ref No. Position IC151 IC171 IC191 IC192 IC193 IC201 TRANSISTORS Q131 Q201 CONNECTORS CN101B CN103B CN112 CN312 CN1751 CN1761 10-10 L3150SCL2...
  • Page 44 DVD Main 1/3 Schematic Diagram DVD MAIN 1/3 1 NOTE: Ref No. Position Either IC461 or IC462 is used for DVD MAIN CBA UNIT. IC201 IC202 IC301 IC461 IC462 TRANSISTORS Q251 Q252 Q253 Q254 Q801 Q802 Q804 CONNECTORS CN201 CN301 CN401 CN801 10-11...
  • Page 45 DVD Main 2/3 Schematic Diagram 10-12 L3150SCD2...
  • Page 46 IC101 Voltage Chart ~ : Voltage is not consistent ----- : Not used Unit : Volts PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP ----- ----- -----...
  • Page 47 DVD Main 3/3 Schematic Diagram DVD MAIN 3/3 Ref No. Position IC103 IC501 IC502 IC601 CONNECTOR CN601 10-14 L3150SCD3...
  • Page 48 Main CBA Top View CAUTION ! Because a hot chassis ground is present in the power Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. supply circuit, an isolation transformer must be used. CAUTION ! : For continued protection against risk of fire, If Main Fuse (F601) is blown , check to see that all components in the power supply Also, in order to have the ability to increase the input...
  • Page 49 Main CBA Bottom View CAUTION ! Because a hot chassis ground is present in the power Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. supply circuit, an isolation transformer must be used. CAUTION ! : For continued protection against risk of fire, If Main Fuse (F601) is blown , check to see that all components in the power supply Also, in order to have the ability to increase the input...
  • Page 50 Function CBA Top View Function CBA Bottom View BL3150F01011-2 10-17...
  • Page 51: Waveforms

    WAVEFORMS < LCD TV SECTION > WF1 ~ WF12 = Waveforms to be observed at Waveform check points. (Shown in Schematic Diagram.) Input: NTSC Color Bar Signal (with 1kHz Audio Signal) CLKH STH1 S-VIDEO-C 1DIV: 1.0V 10 s 1DIV: 1.0V 10 s 1DIV: 200mV 20 s R392 R394...
  • Page 52 WAVEFORMS < DVD SECTION > DVD-AUDIO(R) DVD-AUDIO(R) 0.5ms 0.5ms DVD-Y DVD-Y 0.1V 0.1V 20µs WF13 Pin 1 of CN1701 WF16 Pin 8 of CN1701 DVD-C DVD-C 0.1V 0.1V 20µs SPDIF SPDIF 0.1µs WF14 Pin 3 of CN1701 WF17 Pin 11 of CN1701 NOTE: Input CD: 1kHz PLAY...
  • Page 53: Wiring Diagram

    WIRING DIAGRAM < LCD TV SECTION > L3150WI 12-1...
  • Page 54 WIRING DIAGRAM < DVD SECTION > P-ON+5V 20 CD/DVD 19 D 18 A 17 C 16 B 15 E 14 VREF 13 F 12 GND 11 CD-LD 10 GND(LD) 9 DVD-Y DVD-LD 8 PD-MONI 7 DVD-C GND(DVD-PD) 6 GND(CD-PD) 5 TS(-) 4 DVD-AUDIO(L) FS(-) 3...
  • Page 55: System Control Timing Charts

    SYSTEM CONTROL TIMING CHARTS Tray Close ~ Play / Play ~ Tray Open Tray Disc Disc Tray Play Close Rotation Stop Open 3.3V Tray IN (TL221) 1.65V Sled Drive (TP303) 1.65V Disc Drive (TP301) 1.65V Focus Drive (TP304) Tracking Drive 1.65V (TP302) 13-1...
  • Page 56: Lead Identifications

    LEAD IDENTIFICATIONS 2SC2785(F) 2SA1175(F) KIA7805API 2SC2120-O(TE2 F T) BA1F4M-T 2SD400(F) 2SC2120-Y(TPE2) 1: IN 2: GND 3: OUT 1 2 3 E C B E C B PS2501-1W AN5832SA-E1 TC4053BF(EL.N) AN17812A TC4052BF(EL) 1: A 2: K 3: E 4: C PQ070XF01SZH 2SK3869(Q) M61116FP TF0G NJM78L05...
  • Page 57: Exploded Views

    EXPLODED VIEWS Cabinet LCD Main CBA & Liquid Crystal Panel Unit SP802 CLN802 Main CBA Function CBA CL1651 SP801 CLN801 L21 1B1 See Electrical Parts List for parts with this mark. DVD Main CBA Unit AC601 CL1701 CL1761 15-1 L3150CEX...
  • Page 58 Packing Some Ref. Numbers are not in sequence. Tape Tape Packing Tape Packing Tape Packing Tape 15-2 L3150PEX...
  • Page 59: Mechanical Parts List

    REMOTE CONTROL 192/ECNLC3D1/ NE240UD NE240UD Ref. No. Description Part No. DRY BATTERY R6P/2S XB0M451T0001 FRONT CABINET L3150UA 1EM220281 BRAND BADGE L0200UA~SYLVANIA~ 0EM409019 CONTROL PLATE L3150UA 1EM320373 REAR CABINET L3150UA 1EM120229A RATING LABEL L3150UA ---------- TILT STAND ASSEMBLY L3150UA 1EMN20040 CONNECTER CAP L3150UA...
  • Page 60: Electrical Parts List

    ELECTRICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a Ref. No. Description Part No. # have special characteristics important to safety. CHIP CERAMIC CAP .(1608) CH J 47pF/ 50V CHD1JJ3CH470 Before replacing any of these components, read ELECTROLYTIC CAP . 1µF/ 50V M CE1JMASDL1R0 carefully the product safety notice in this service CHIP CERAMIC CAP .(1608) CH J 47pF/ 50V...
  • Page 61 Ref. No. Description Part No. Ref. No. Description Part No. C637# ELECTROLYTIC CAP . 2200µF/ 25V M CE1EMZPDL222 C818 ELECTROLYTIC CAP . 2200µF/ 16V M CE1CMZPDL222 C638 CHIP CERAMIC CAP .(1608) B K 0.1µF/ 50V CHD1JK30B104 C819 CHIP CERAMIC CAP . B K 2200pF/ 50V CHD1JK30B222 C639# ELECTROLYTIC CAP .
  • Page 62 Ref. No. Description Part No. Ref. No. Description Part No. D402 SWITCHING DIODE 1SS400 QD1Z001SS400 D612 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 D403# ZENER DIODE MTZJT-779.1B QDTB0MTZJ9R1 D613 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 D404# SWITCHING DIODE 1SS400 QD1Z001SS400 D615 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 D405# SWITCHING DIODE 1SS400 QD1Z001SS400...
  • Page 63 Ref. No. Description Part No. Ref. No. Description Part No. IC672 VOLTAGE REGULATOR KIA7805API NSBBA0SJY011 Q708 TRANSISTOR 2SC4081 T106 Q QQ1Q02SC4081 IC781 IC TC4053BF(EL.N) QSZBA0TTS131 Q802 TRANSISTOR 2SC2785(F) QQSF02SC2785 IC801 IC AN17812A QSZBA0SMS017 Q803 TRANSISTOR 2SA1175(F) QQSF02SA1175 IC851 IC MTS DECORDER AN5832SA-E1 QSZBA0TMS003 Q804 TRANSISTOR 2SC2785(F)
  • Page 64 Ref. No. Description Part No. Ref. No. Description Part No. CHIP RES.(1608) 1/10W J 4.7k Ω CARBON RES. 1/4W J 390k Ω R445 RRXAJR5Z0472 R605 RCX4JATZ0394 CHIP RES.(1608) 1/10W J 47 Ω R446 RRXAJR5Z0470 R606 PCB JUMPER D0.6-P5.0 JW5.0T CHIP RES.(1608) 1/10W J 560 Ω CARBON RES.
  • Page 65 Ref. No. Description Part No. Ref. No. Description Part No. CARBON RES. 1/4W J 100 Ω CARBON RES. 1/4W J 22k Ω R734 RCX4JATZ0101 R842 RCX4JATZ0223 CHIP RES.(1608) 1/10W J 39k Ω CARBON RES. 1/4W J 22k Ω R735 RRXAJR5Z0393 R843 RCX4JATZ0223 CHIP RES.(1608) 1/10W J 75 Ω...
  • Page 66 Ref. No. Description Part No. Ref. No. Description Part No. CARBON RES. 1/4W J 10k Ω BC630 PCB JUMPER D0.6-P5.0 JW5.0T R109 RCX4JATZ0103 CARBON RES. 1/4W J 47 Ω BC631 PCB JUMPER D0.6-P5.0 JW5.0T R110 RCX4JATZ0470 CHIP RES.(1608) 1/10W J 1.5k Ω BC632 BEAD INDUCTORS FBR07HA121TB-00 LLBF00ZTU021...
  • Page 67 6615LDF L3150UA 2005-06-30...

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