Sylvania C6615LE Service Manual
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Sylvania C6615LE Service Manual

15” color lcd television
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SERVICE MANUAL
15" COLOR LCD TELEVISION
C6615LE

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Summary of Contents for Sylvania C6615LE

  • Page 1 SERVICE MANUAL 15” COLOR LCD TELEVISION C6615LE...

  • Page 2: Table Of Contents

    IMPORTANT SAFETY NOTICE Proper service and repair is important to the safe, reliable operation of all SONIGEM Equipment. The service procedures recommended by SONIGEM 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: Specifications

    SPECIFICATIONS <TUNER> ANT. Input ------------------- 75ohm Unbal., F type Reference Level ------------20Vp-p (CRT Green Cathode) Test Input Signal -----------400Hz 30% modulation Description Condition Unit Nominal Limit 1. Intermediate Freq. Picture 45.75 Sound 41.25 2. Color Killer Sens. CH-2 dBµV CH-10 dBµV CH-55 dBµV...

  • Page 4: 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 5 ing is performed that involves B+, horizontal de- earth ground. If a voltage reading in excess of 1.0V flection or high voltage. Correct operation of the X- is obtained, remove and reinsert the AC power radiation protection circuits also must be recon- plug in the opposite polarity and again measure firmed each time they are serviced.
  • Page 6 Precautions during Servicing 3) Align the lengths of the wires to be connected. In- sert the wires fully into the connector. A. Parts identified by the ( # ) symbol are critical for 4) Use the crimping tool to crimp the metal sleeve at safety.
  • Page 7 Safety Check after Servicing Examine the area surrounding the repaired location Chassis or Secondary Conductor for damage or deterioration. Observe that screws, parts and wires have been returned to original posi- tions. Afterwards, perform the following tests and con- Primary Circuit Terminals firm the specified values in order to verify compliance with safety standards.

  • Page 8: Standard Notes For Servicing

    STANDARD NOTES FOR SERVICING Circuit Board Indications How to Remove / Install Flat Pack-IC a. The output pin of the 3 pin Regulator ICs is indicat- 1. Removal ed as shown. With Hot-Air Flat Pack-IC Desoldering Machine: (1) Prepare the hot-air flat pack-IC desoldering ma- Top View Bottom View chine, then apply hot air to the Flat Pack-IC (about...
  • Page 9 3. The flat pack-IC on the CBA is affixed with glue, so With Soldering Iron: be careful not to break or damage the foil of each (1) Using desoldering braid, remove the solder from pin or the solder lands under the IC when remov- all pins of the flat pack-IC.
  • Page 10 2. Installation (4) Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply (1) Using desoldering braid, remove the solder from soldering iron to center of the flat pack-IC and heat the foil of each pin of the flat pack-IC on the CBA up.
  • Page 11 Instructions for Handling Semiconductors Electrostatic breakdown of the semiconductors may occur due to a potential difference caused by electro- static charge during unpacking or repair work. 1. Ground for Human Body Be sure to wear a grounding band (1MΩ) that is prop- erly grounded to remove any static electricity that may be charged on the body.

  • Page 12: Cabinet Disassembly Instructions

    CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart 2. Disassembly Method This flowchart indicates the disassembly steps for the REMOVAL cabinet parts and the CBA in order to gain access to REMOVE/ item(s) to be serviced. When reassembling, follow the LOC. PART *UNHOOK/UNLOCK/ Fig.
  • Page 13 (S-1) (S-1) (S-2) (S-1) [1] Rear Cabinet Fig. D1 (S-1) [6] Speaker L [8] Front Cabinet (S-10) (S-8) [5] Function CBA (S-8) [2] Jack Holder (S-9) (S-5) (S-6) (S-9) (S-8) (S-8) [7] Speaker R (S-4) (S-3) (S-8) (S-11) (S-6) [4] LCD Main CBA & (S-6) Liquid Crystal Panel Unit (S-7)
  • Page 14 TV Cable Wiring Diagram LCD Main CBA CN101B CN102B CN103B CN401 To Liquid Crystal CN101A CN102A CN103A Panel Unit CN402 Main CBA CN104A CN802 CN801 To Speaker To Speaker CN104B Function CBA Fig. D3 L0207DC...

  • Page 15: Electrical Adjustment Instructions

    ELECTRICAL ADJUSTMENT INSTRUCTIONS 1. Initial Setting General Note: "CBA" is abbreviation for "Circuit Board Assem- General bly." Enter the Service mode. NOTE: Electrical adjustments are required after replacing Set the each initial data as shown on tabel 1 below. circuit components and certain mechanical parts. It is When version of micro computer is 0004GP-0.47, set important to perform these adjustments only after all the each initial data as shown on table 1 and 2 below.
  • Page 16 2. Flicker Adjustment BUTTON DATA ITEM (on the service When version of micro computer is 0004GP-0.47, the VALUE remote control) following adjustment is necessary. Adjustment Point: VR481 (LCD Main CBA Unit) SAIDO C-SAIDO LCD Main CBA Unit VR481 C-H-P C-V-P VOL p →...
  • Page 17 The following adjustment normally are not attempted in the field. Only when replacing the LCD Panel then adjust as a preparation. 3. White Balance Adjustment Purpose: To mix red, green and blue beams correctly for pure white. Symptom of Misadjustment: White becomes bluish or reddish.

  • Page 18: Block Diagrams

    BLOCK DIAGRAMS System Control Block Diagram L0207BLS...
  • Page 19 IF/Video Block Diagram L0207BLIF...
  • Page 20 Audio Block Diagram L0207BLA...
  • Page 21 LCD Block Diagram L0207BLLCD...
  • Page 22 Power Supply Block Diagram L0207BLP...
  • Page 23 LCD Backlight Block Diagram L0207BLLB...

  • Page 24: 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 compo- nents rated for higher voltage, wattage, etc. Replacement parts that have these special safety characteristics are identified in this manual and its supplements;...
  • Page 25 LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES: 1. 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 26 *1 NOTE : Combination of the parts Main 1/4 Schematic Diagram inside a dotted line. Ref.No TYPE-A TYPE-B C466 WIRE 10P/3KV C468 WIRE 10P/3KV C481 WIRE 10P/3KV C482 WIRE 10P/3KV C483 5P/3KV 10P/3KV C484 5P/3KV 10P/3KV C485 5P/3KV 10P/3KV C486 5P/3KV 10P/3KV MAIN 1/4...
  • Page 27 Main 2/4 Schematic Diagram VIDEO SIGNAL AUDIO SIGNAL MAIN 2/4 Ref No. Position IC11 IC851 IC852 TRANSISTORS Q709 TEST POINT TP300 L0207SCM2...
  • Page 28 Main 3/4 Schematic Diagram VIDEO SIGNAL AUDIO SIGNAL MAIN 3/4 Ref No. Position IC781 IC801 TRANSISTORS Q701 Q702 Q703 Q704 Q705 Q706 Q707 Q708 Q802 Q803 CONNECTORS CN103A CN801 CN802 L0207SCM3...
  • Page 29 Main 4/4 Schematic Diagram CAUTION ! NOTE : CAUTION: FOR CONTINUED PROTECTION AGAINST RISK Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. The voltage for parts in hot circuit is OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE. If Main Fuse (F601) is blown, check to see that all components in the power supply measured using hot GND as a ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE...
  • Page 30 Function Schematic Diagram 7-11 7-12 L0207SCF...
  • Page 31 LCD Main 1/3 Schematic Diagram VIDEO SIGNAL AUDIO SIGNAL LCD MAIN 1/3 Ref No. Position IC333 CONNECTORS CN102B CN401A 7-13 7-14 L0207SCLCD1...
  • Page 32 LCD Main 2/3 Schematic Diagram VIDEO SIGNAL AUDIO SIGNAL LCD MAIN 2/3 Ref No. Position IC171 TRANSISTORS Q102 Q151 CONNECTORS CN103B CN105 7-15 7-16 L0207SCLCD2...
  • Page 33 LCD Main 3/3 Schematic Diagram VIDEO SIGNAL AUDIO SIGNAL LCD MAIN 3/3 Ref No. Position IC401 TRANSISTOR Q401 CONNECTORS CN101B CN402A VARIABLE RESISTOR VR481 7-17 7-18 L0207SCLCD3...
  • Page 34 Main CBA Top View CAUTION ! CAUTION: FOR CONTINUED PROTECTION AGAINST RISK BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE. SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED.
  • Page 35 Main CBA Bottom View CAUTION ! CAUTION: FOR CONTINUED PROTECTION AGAINST RISK BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE. SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED.
  • Page 36 Function CBA Top View FUNCTION　CBA Ref No. Position CONNECTORS CN104B CN111 Function CBA Bottom View BL0200F01011-2 7-23 7-24...

  • Page 37: Waveforms

    WAVEFORMS WF1 ~ WF12 = Waveforms to be observed at Waveform check points. (Shown in Schematic Diagram.) Input: NTSC Color Bar Signal (with 1kHz Audio Signal) 1DIV: 1.0V 10 s 1DIV: 1.0V 10 s 1DIV: 200mV 20 s R396 R398 Pin 5 of CN103A 1DIV: 1.0V 20ns 1DIV: 100mV 400 s...

  • Page 38: Wiring Diagram

    WIRING DIAGRAM L0207WI...
  • Page 39 EXPLODED VIEWS Cabinet SP801 CLN801 SP802 Function CBA CLN802 LCD Main CBA & Liquid Crystal Panel Unit Main CBA AC601 See Electrical Parts List for parts with this mark. 10-1 10-2 L0207CEX...
  • Page 40 Packing Some Ref. Numbers are not in sequence. Tape Tape Packing Tape Packing Tape Packing Tape 10-3 L0207PEX...

  • Page 41: Mechanical Parts List

    MECHANICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. Before replacing any of these components, read carefully the product safety notice in this service manual. Don't degrade the safety of the product through improper ser- vicing.

  • Page 42: Electrical Parts List

    ELECTRICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a MAIN CBA # have special characteristics important to safety. Ref. No. Description Part No. Before replacing any of these components, read care- MAIN CBA ------------ fully the product safety notice in this service manual. Consists of the following: Don't degrade the safety of the product through CAPACITORS...
  • Page 43 Ref. No. Description Part No. Ref. No. Description Part No. C533 CHIP CERAMIC CAP .(1608) B K 0.01µF/50V CHD1JK30B103 C707 CHIP CERAMIC CAP . CH J 1000pF/25V CHD1EJ3CH102 C536 ELECTROLYTIC CAP . 330µF/6.3V M H7 CE0KMASSL331 C708 CHIP CERAMIC CAP . CH J 1000pF/25V CHD1EJ3CH102 C538 ELECTROLYTIC CAP .
  • Page 44 Ref. No. Description Part No. Ref. No. Description Part No. C865 CHIP CERAMIC CAP .(1608) B K 0.1µF/50V CHD1JK30B104 SWITCHING DIODE 1N4148 NDTZ001N4148 C866 CHIP CERAMIC CAP . F Z 2.2µF/10V CHD1AZ30F225 D435# SWITCHING DIODE 1SS133(T-77) or QDTZ001SS133 C867 CHIP CERAMIC CAP . F Z 2.2µF/10V CHD1AZ30F225 SWITCHING DIODE 1N4148 NDTZ001N4148...
  • Page 45 Ref. No. Description Part No. Ref. No. Description Part No. D501# SWITCHING DIODE 1SS133(T-77) or QDTZ001SS133 D608# DIODE 1N5397-B or NDLZ001N5397 SWITCHING DIODE 1N4148 NDTZ001N4148 RECTIFIER DIODE ERB12-06 QDQZ0ERB1206 D502 ZENER DIODE MTZJT-7727B or QDTB00MTZJ27 D609 ZENER DIODE MTZJT-775.6B or QDTB0MTZJ5R6 ZENER DIODE DZ-27BSBT265 NDTB00DZ27BS...
  • Page 46 Ref. No. Description Part No. Ref. No. Description Part No. D716 SWITCHING DIODE 1SS133(T-77) or QDTZ001SS133 L781 PCB JUMPER D0.6-P5.0 JW5.0T SWITCHING DIODE 1N4148 NDTZ001N4148 L851 PCB JUMPER D0.6-P5.0 JW5.0T D717 SWITCHING DIODE 1SS133(T-77) or QDTZ001SS133 TRANSISTORS SWITCHING DIODE 1N4148 NDTZ001N4148 TRANSISTOR 2SC2785(F) or QQSF02SC2785...
  • Page 47 Ref. No. Description Part No. Ref. No. Description Part No. TRANSISTOR KTC3199(GR) or NQS10KTC3199 TRANSISTOR 2SC1815-GR(TPE2) QQS102SC1815 TRANSISTOR KTC3198(GR) or NQS40KTC3198 Q506 TRANSISTOR 2SA1175(F) or QQSF02SA1175 TRANSISTOR 2SC3331(T)-AANP or 2SC3331TZ TRANSISTOR KTA1267(GR) or NQS10KTA1267 TRANSISTOR 2SC3331(U)-AANP or 2SC3331UZ TRANSISTOR KTA1266(GR) or NQS40KTA1266 TRANSISTOR 2SC1815-GR(TPE2) QQS102SC1815...
  • Page 48 Ref. No. Description Part No. Ref. No. Description Part No. TRANSISTOR 2SC2785(H) or QQSH02SC2785 TRANSISTOR 2SC3331(U)-AANP or 2SC3331UZ TRANSISTOR 2SC2785(J) or QQSJ02SC2785 TRANSISTOR 2SC1815-GR(TPE2) QQS102SC1815 TRANSISTOR KTC3199(GR) or NQS10KTC3199 Q709 TRANSISTOR 2SA1175(F) or QQSF02SA1175 TRANSISTOR KTC3198(GR) or NQS40KTC3198 TRANSISTOR KTA1267(GR) or NQS10KTA1267 TRANSISTOR 2SC3331(T)-AANP or 2SC3331TZ...
  • Page 49 Ref. No. Description Part No. Ref. No. Description Part No. CHIP RES.(1608) 1/10W J 4.7k Ω CHIP RES.(1608) 1/10W J 100k Ω R434 RRXAJR5Z0472 R531 RRXAJR5Z0104 CHIP RES.(1608) 1/10W J 4.7k Ω R435 RRXAJR5Z0472 R539 CARBON RES. 1/4W J 470 OHM RCX4JATZ0471 CHIP RES.(1608) 1/10W J 330 Ω...
  • Page 50 Ref. No. Description Part No. Ref. No. Description Part No. CHIP RES.(1608) 1/10W J 10k Ω CHIP RES.(1608) 1/10W J 100 Ω R656 RRXAJR5Z0103 R804 RRXAJR5Z0101 CARBON RES. 1/4W J 1.2k Ω FIXED METAL OXIDE FILM RES. 3W J 12 Ω or R658 RCX4JATZ0122 R805#...
  • Page 51 Ref. No. Description Part No. Ref. No. Description Part No. CARBON RES. 1/4W J 100 Ω CLN2 WIRE 040/BLA/AWG26#1007 WX3001A65505 R102 RCX4JATZ0101 CHIP RES.(1608) 1/10W J 1.5k Ω F601# FUSE 4.00A/125V or PAGU20CAG402 R103 RRXAJR5Z0152 CHIP RES.(1608) 1/10W J 1.5k Ω FUSE 51MS040L or PAFC20CHV402 R104...
  • Page 52 C6615LE L0207CH 2004-10-04...

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