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Sylvania 6615LDG Service Manual

15″ lcd tv/dvd
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SERVICE MANUAL
15" LCD TV/DVD
6615LDG
15" LCD TV/DVD
SSL15D6

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Summary of Contents for Sylvania 6615LDG

  • Page 1 SERVICE MANUAL 15″ LCD TV/DVD 6615LDG 15″ LCD TV/DVD SSL15D6...
  • 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 > VHF/UHF Input : 75 ohm Unbal., F type Intermediate Freq. : Picture 45.75 MHz, Sound 41.25 MHz Description Condition Unit Nominal Limit 1. Video S/N 80dB 2. Audio S/N 40/40 < LCD PANEL > Description Condition Unit...
  • Page 5 DVD Section < > Description Condition Unit Nominal Limit 1. Horizontal Resolution (TDV-540 TIT.2 CHP.16) Line 2. Video S/N (TDV-540 TIT.2 CHP.6) 3. S/N Chroma (TDV-540 TIT.2 CHP.17) 4. Audio distortion (LPCM 48 kHz, W/LPF) 0.03 0.07 (PTD 1-NOR TIT.1 CHP.1) L, 20 Hz 5.

  • 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 [ 6615LDG ] Removal Step/ Remove/*Unhook/ 1. Disassembly Flowchart Loc. Part Fig. Unlock/Release/ Note Unplug/Unclamp/ This flowchart indicates the disassembly steps for the Desolder cabinet parts, and the CBA in order to gain access to item(s) to be serviced. When reassembling, follow the 6(S-9), *CN401, steps in reverse order.
  • Page 16 Reference Notes Note: (1) Order of steps in procedure. When reassembling, 1. CAUTION 1: Electrostatic breakdown of the laser follow the steps in reverse order. These numbers diode in the optical system block may occur as a are also used as the Identification (location) No. of potential difference caused by electrostatic charge parts in figures.
  • Page 17 (S-1) (S-1) (S-1) (S-1) (S-1) (S-2) (S-1) (S-3) [1] Rear Cabinet (S-1) [2] Tilt Stand Assembly Fig. D1 L2550_52DC...
  • Page 18 [6] DVD Holder [5] DVD Mechanism (S-8) (S-4) (S-7) (S-5) (S-4) (S-7) [3] Jack Holder (S-6) [4] DVD Main CBA Unit Remove two screws A, then short the three short lands by soldering as shown in View for A. Chassis Cover Screws A Pin A Either of two places...
  • Page 19 (S-9) (S-9) [7] Main CBA (S-9) (S-10) [8] Tilt Stand Holder (S-9) (S-9) Fig. D3 L2550_52DC...
  • Page 20 [14] Front Cabinet [10] Function CBA [12] Speaker(R) (S-12) (S-14) (S-13) Speaker Holders (S-11) [13] Speaker(L) [11] IR Sensor CBA (S-15) Speaker Holders (S-11) (S-11) [9] LCD Module Fig. D4 L2550_52DC...
  • Page 21 [15] Stand Cover [16] Arm Holder (S-17) [17] Sheet R [18] Arm Assembly (S-16) [17] Sheet L (S-16) Fig. D5 L2550_52DC...
  • Page 22 TV Cable Wiring Diagram To DVD Mechanism DVD Main CBA Unit Function CBA CN201 CN301 CLN904 CN801 CN601 CN401 To LCD Module Main CBA CN1205 CN1206 CN1207 CN1201 CN401 To LCD Module CN403 CN1701 CN1651 CN802 To Speaker CN801 CN1202 IR Sensor CBA CLN105 To Speaker...
  • Page 23 3. How to Eject Manually 1. Remove the Rear Cabinet. 2. To remove the DVD Main CBA Unit, remove a screw (S-6) in Fig. D2. Do not disconnect connectors. 3. To remove the Chassis Cover, remove two screws A as shown in Fig. D7. 4.
  • Page 24 [ SSL15D6 ] 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 25 Reference Notes Note: (1) Order of steps in procedure. When reassembling, 1. CAUTION 1: Electrostatic breakdown of the laser follow the steps in reverse order. These numbers diode in the optical system block may occur as a are also used as the Identification (location) No. of potential difference caused by electrostatic charge parts in figures.
  • Page 26 (S-1) (S-1) (S-1) (S-1) (S-1) (S-2) (S-1) (S-3) [1] Rear Cabinet (S-1) [2] Tilt Stand Assembly Fig. D1 5-12 L2550_52DC...
  • Page 27 [6] DVD Holder [5] DVD Mechanism (S-8) (S-4) (S-7) (S-5) (S-4) (S-7) [3] Jack Holder (S-6) [4] DVD Main CBA Unit Remove two screws A, then short the three short lands by soldering as shown in View for A. Chassis Cover Screws A Pin A Either of two places...
  • Page 28 (S-9) (S-9) [7] Main CBA (S-9) (S-10) [8] Tilt Stand Holder (S-9) (S-9) Fig. D3 5-14 L2550_52DC...
  • Page 29 [14] Front Cabinet [10] Function CBA [12] Speaker(R) (S-12) (S-14) Speaker Holders [13] Speaker(L) (S-11) (S-15) (S-13) Speaker Holders (S-11) (S-11) [11] IR Sensor CBA [9] LCD Module Fig. D4 5-15 L2550_52DC...
  • Page 30 [15] Stand Cover [16] Arm Holder (S-17) [17] Sheet R [18] Arm Assembly (S-16) [17] Sheet L (S-16) Fig. D5 5-16 L2550_52DC...
  • Page 31 TV Cable Wiring Diagram To DVD Mechanism DVD Main CBA Unit Function CBA CN201 CN301 CLN904 CN801 CN601 CN401 To LCD Module Main CBA CN1205 CN1206 CN1207 CN1201 CN401 To LCD Module CN403 CN1701 CN1651 CN802 To Speaker CN801 CN1202 IR Sensor CBA CLN145 To Speaker...
  • Page 32 3. How to Eject Manually 1. Remove the Rear Cabinet. 2. To remove the DVD Main CBA Unit, remove a screw (S-6) in Fig. D2. Do not disconnect connectors. 3. To remove the Chassis Cover, remove two screws A as shown in Fig. D7. 4.

  • Page 33: 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 34 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 35 The following adjustment normally are not 5. [VIDEO1] attempted in the field. Only when replacing the Press “6” button to select “DB(C/D1)” for Blue LCD Panel then adjust as a preparation. adjustment. Press “4” button to select “DR(C/D1)” for Red adjustment. When “x” value and “y” value 3.
  • Page 36 Note: The optical receptor must be set perpendicularly to the LCD Panel surface. 4. [VIDEO1] Enter the 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-”...

  • Page 37: 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 38: 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 39: Block Diagrams

    BLOCK DIAGRAMS < LCD TV SECTION > System Control Block Diagram L2550BLS...
  • Page 40 IF/Video Block Diagram L2550BLIF...
  • Page 41 Audio Block Diagram L2550BLA...
  • Page 42 LCD Block Diagram L2550BLLCD...
  • Page 43 Power Supply Block Diagram L2550BLP...
  • Page 44 LCD Backlight Block Diagram L2550BLLB...
  • Page 45 BLOCK DIAGRAMS < DVD SECTION > System Control / Servo Block Diagram L2550BLSD...
  • Page 46 Digital Signal Process Block Diagram L2550BLD...

  • Page 47: 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 48 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 49 Main 1/6 Schematic Diagram < LCD TV Section > L2550SCM1 10-3...
  • Page 50 Main 2/6 Schematic Diagram < LCD TV Section > L2550SCM2 10-4...
  • Page 51 Main 3/6 Schematic Diagram < LCD TV Section > L2550SCM3 10-5...
  • Page 52 Main 4/6 Schematic Diagram < LCD TV Section > L2550SCM4 10-6...
  • Page 53 Main 5/6 Schematic Diagram < LCD TV Section > CAUTION ! NOTE: Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. CAUTION ! : For continued protection against risk of fire, If Main Fuse (F601) is blown , check to see that all components in the power supply The voltage for parts in hot circuit is measured using replace only with same type 4 A, 125V fuse.
  • Page 54 Main 6/6 Schematic Diagram < LCD TV Section > L2550SCM6 10-8...
  • Page 55 Function Schematic Diagram < LCD TV Section > L2550SCF 10-9...
  • Page 56 IR Sensor Schematic Diagram < LCD TV Section > (A) Comparison Chart of Models and Marks MODEL MARK 6615LDG SSL15D6 10-10 L2550SCIR...
  • Page 57 IR Sensor Schematic Diagram < LCD TV Section > (B) Comparison Chart of Models and Marks MODEL MARK 6615LDG SSL15D6 L2550SCIR 10-11...
  • Page 58 DVD Main 1/3 Schematic Diagram < DVD Section > 1 NOTE: Either IC461 or IC462 is used for DVD MAIN CBA UNIT. L2550SCD1 10-12...
  • Page 59 DVD Main 2/3 Schematic Diagram < DVD Section > L2550SCD2 10-13...
  • Page 60 DVD Main 3/3 Schematic Diagram < DVD Section > L2550SCD3 10-14...
  • Page 61 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, Also, in order to have the ability to increase the input If Main Fuse (F601) is blown , check to see that all components in the power supply...
  • Page 62 Main CBA Bottom View CAUTION ! Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. CAUTION ! : For continued protection against risk of fire, If Main Fuse (F601) is blown , check to see that all components in the power supply replace only with same type 4 A, 125V fuse.
  • Page 63 Function CBA Top View Comparison Chart of Models and Marks MODEL MARK 6615LDG SSL15D6 IR Sensor CBA IR Sensor CBA Top View (A) Bottom View (A) BL2500F01012-3 Function CBA Bottom View IR Sensor CBA IR Sensor CBA Top View (B)

  • Page 64: 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 Pin 2 of CN1206 Pin 26 of CN1206...
  • Page 65 WAVEFORMS < DVD SECTION > DVD-AUDIO(R) 0.5ms DVD-Y 0.1V 20µs WF13 WF16 Pin 1 of CN1701 Pin 7 of CN1701 DVD-C 0.1V 20µs SPDIF 0.1µs WF14 WF17 Pin 3 of CN1701 Pin 9 of CN1701 NOTE: Input CD: 1kHz PLAY (WF15~WF17) DVD: POWER ON (STOP) MODE DVD-AUDIO(L)

  • Page 66: Wiring Diagram

    WIRING DIAGRAM < LCD TV SECTION > L2550WI 12-1...
  • Page 67 WIRING DIAGRAM < DVD SECTION > DVD-ON+5V 20 CD/DVD 19 D 18 A 17 DVD-Y C 16 B 15 DVD-C NU 14 VREF 13 DVD-AUDIO(L) NU 12 DVD-MUTE GND 11 DVD-AUDIO(R) CD-LD 10 AUDIO-GND GND(LD) 9 SPDIF DVD-LD 8 PD-MONI 7 GND(DVD-PD) 6 GND(CD-PD) 5 TS(-) 4...

  • Page 68: System Control Timing Charts

    SYSTEM CONTROL TIMING CHARTS Disc In ~ Play/Play ~ Disc Out Disc Disc Disc Disc Play Rotation Stop 3.3V Disc IN (TL221) 1.65V Sled Drive (TP303) 1.65V Disc Drive (TP301) 1.65V Focus Drive (TP304) Tracking Drive 1.65V (TP302) 13-1 L2550TI...

  • Page 69: Lead Identifications

    LEAD IDENTIFICATIONS 2SC2785(F) 2SA1175(F) 2SC4881F KIA7805API/P 2SA950-O(TE2 F T) BA1F4M-T 2SC2120-O(TE2 F T) KTC3199-GR-AT/P 2SD400(F) 1: IN 2: GND 3: OUT B C E 1 2 3 E C B E C B TC4053BF(EL N F) TC4052BF(ELNF) M61116FP TF0G AN5832SA-E1V TL3472CDR 2SK3869(Q) BU4223G-TR...

  • Page 70: Exploded Views

    EXPLODED VIEWS Cabinet [ 6615LDG ] Function CBA SP802 CLN802 CL1205 CL1206 IR Sensor CBA CL1207 LCD1 CLN801 SP801 Main CBA A9-1 A9-4 A9-4 See Electrical Parts List for parts with this mark. A9-2 A9-5 A9-6 CL1701 CL1651 L3-10 A9-3...
  • Page 71 [ SSL15D6 ] SP802 Function CBA CLN802 CLN801 CL1205 CL1206 SP801 LCD1 CL1207 Main CBA A9-1 IR Sensor CBA A9-4 A9-4 See Electrical Parts List for parts with this mark. A9-2 A9-5 CL1701 A9-6 CL1651 L3-10 A9-3 DVD Main CBA Unit AC601 A9-5 A9-7...
  • Page 72 Packing Some Ref. Numbers are not in sequence. Tape Packing Tape Packing Tape Packing Tape Packing Tape 15-3 L2550PEX...

  • Page 73: Mechanical Parts List

    Comparison Chart of Models and Marks SCREW P-TIGHT 3X12 WASHER GCJP3120 HEAD+ Model Mark L3-10 SCREW P-TIGHT M3X8 BIND HEAD+ GBJP3080 6615LDG SCREW P-TIGHT M3*10 GCJP3100 SSL15D6 WASHERHEAD+ SCREW P-TIGHT 3X10 BIND HEAD+ GBHP3100 SCREW P-TIGHT M3*12 BIND+ GBJP3120 Ref. No. Mark Description Part No.

  • Page 74: Electrical Parts List

    Comparison Chart of Models and Marks C430 CAP METALIZED FILM 0.056µF 250V J ECWF2 CT2E563MS041 Model Mark C431 ELECTROLYTIC CAP . 22µF/50V M CE1JMASDL220 6615LDG C432 CHIP CERAMIC CAP .(1608) B K 0.01µF/50V CHD1JK30B103 SSL15D6 C461 CAP CHIP 5pF 3KV C XC CA3F5R05M016 C462 CHIP CERAMIC CAP .(1608) B K 0.01µF/50V...
  • Page 75 Ref. No. Description Part No. Ref. No. Description Part No. C646 FILM CAP .(P) 0.082µF/50V J CMA1JJS00823 C1203 ELECTROLYTIC CAP . 100µF/6.3V M H7 CE0KMASSL101 C647 ELECTROLYTIC CAP . 220µF/6.3V M H7 CE0KMASSL221 C1205 ELECTROLYTIC CAP . 100µF/6.3V M H7 CE0KMASSL101 C648 CHIP CERAMIC CAP .(1608) B K 0.22µF/16V...
  • Page 76 Ref. No. Description Part No. Ref. No. Description Part No. C1602 ELECTROLYTIC CAP . 2200µF/16V M CE1CMZPDL222 D431 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 C1652 CHIP CERAMIC CAP .(1608) B K 0.01µF/50V CHD1JK30B103 D432 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 C1653 ELECTROLYTIC CAP . 100µF/10V M CE1AMASDL101 D433 SWITCHING DIODE 1SS133(T-77)
  • Page 77 Ref. No. Description Part No. Ref. No. Description Part No. D659 PCB JUMPER D0.6-P5.0 JW5.0T L403 COIL CHOKE ELC10D101EL LLC101KMS003 D660 PCB JUMPER D0.6-P5.0 JW5.0T L601# LINE FILTER 5.0MH 6Y075 LLBG00ZKT004 D663 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 L631 INDUCTOR 47µH-K-5FT LLARKBSTU470 D664 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133...
  • Page 78 Ref. No. Description Part No. Ref. No. Description Part No. CHIP RES. 1/10W J 2.2k Ω CHIP RES. 1/10W J 22k Ω RRXAJR5Z0222 R505 RRXAJR5Z0223 CHIP RES. 1/10W J 820k Ω RRXAJR5Z0824 R507 PCB JUMPER D0.6-P5.0 JW5.0T CHIP RES.(1608) 1/10W 0 Ω CARBON RES.
  • Page 79 Ref. No. Description Part No. Ref. No. Description Part No. CHIP RES. 1/10W J 100 Ω CARBON RES. 1/4W J 22k Ω R707 RRXAJR5Z0101 R833 RCX4JATZ0223 CHIP RES. 1/10W J 10k Ω CHIP RES. 1/10W J 22k Ω R708 RRXAJR5Z0103 R834 RRXAJR5Z0223 CHIP RES.
  • Page 80 Ref. No. Description Part No. Ref. No. Description Part No. CHIP RES. 1/10W J 56 Ω CHIP RES.(1608) 1/10W 0 Ω R1304 RRXAJR5Z0560 R1367 RRXAZR5Z0000 CHIP RES. 1/10W J 56 Ω CHIP RES.(1608) 1/10W 0 Ω R1305 RRXAJR5Z0560 R1368 RRXAZR5Z0000 CHIP RES.
  • Page 81 Ref. No. Description Part No. Ref. No. Description Part No. CARBON RES. 1/4W J 1.5k Ω JK706 RCA JACK(GREEN) MTJ-032-08B-41 FE( JXRL010LY126 R904 RCX4JATZ0152 CARBON RES. 1/4W J 2.2k Ω JK707 RCA JACK(BLUE) MTJ-032-08B-44 FE JXRL010LY130 R905 RCX4JATZ0222 CARBON RES. 1/4W J 2.7k Ω JK708 JACK RCA PCB L RCA 112(2) 04(RD) JXRL010YUQ16...
  • Page 82 6615LDG/SSL15D6 L2550UA/L2552UC 2006-06-21...

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