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Symphonic WF15L5 Service Manual
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Symphonic WF15L5 Service Manual

15? color lcd television
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Download this manual See also: Owner's Manual
SERVICE MANUAL
This service manual shows only the differences between
the model WF15L5 and the original model 6615LF4.
All other information is described in the service manual
of the model 6615LF4.
15" COLOR LCD
TELEVISION
WF15L5
Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Schematic Diagrams / CBA's and Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Waveforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Different parts from the original model (6615LF4). . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

TABLE OF CONTENTS

SUPPLEMENT

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Summary of Contents for Symphonic WF15L5

  • Page 1: Table Of Contents

    SUPPLEMENT SERVICE MANUAL This service manual shows only the differences between the model WF15L5 and the original model 6615LF4. All other information is described in the service manual of the model 6615LF4. 15″ COLOR LCD TELEVISION WF15L5 TABLE OF CONTENTS Block Diagrams .

  • Page 2: Block Diagrams

    BLOCK DIAGRAMS System Control Block Diagram L3120BLS...
  • Page 3 IF/Video Block Diagram L3120BLIF...
  • Page 4 Audio Block Diagram L3120BLA...
  • Page 5 LCD Block Diagram L3120BLLCD...

  • Page 6: 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 7 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 8 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 L3120SCM1...
  • Page 9 Main 2/5 Schematic Diagram MAIN 2/5 Ref No. Position IC31 IC851 IC852 TRANSISTOR CONNECTOR CN113 L3120SCM2...
  • Page 10 Main 3/5 Schematic Diagram MAIN 3/5 Ref No. Position IC781 IC801 TRANSISTORS Q701 Q702 Q703 Q704 Q705 Q706 Q707 Q708 Q802 Q803 CONNECTORS CN801 CN802 CN103A L3120SCM3...
  • Page 11 Main 4/5 Schematic Diagram NOTE: CAUTION ! Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. The voltage for parts in hot circuit is measured using CAUTION ! : For continued protection against risk of fire, If Main Fuse (F601) is blown , check to see that all components in the power supply hot GND as a common terminal.
  • Page 12 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-4 Q422 AC-3 Q423 AC-2 Q424 AB-1 Q427 AA-3 Q428 AA-2 CONNECTORS CN402...
  • Page 13 Function Schematic Diagram L3120SCF...
  • Page 14 LCD Main 1/2 Schematic Diagram LCD MAIN 1/2 Ref No. Position IC333 TRANSISTOR Q301 CONNECTORS CN104 CN105 CN111 CN211 CN311 CN102B L3120SCL1...
  • Page 15 LCD Main 2/2 Schematic Diagram LCD MAIN 2/2 Ref No. Position IC151 IC171 IC191 IC192 IC193 IC201 TRANSISTORS Q131 Q201 CONNECTORS CN112 CN312 CN101B CN103B 2-10 L3120SCL2...

  • Page 16: Waveforms

    WAVEFORMS WF1 ~ WF9 = Waveforms to be observed at Waveform check points. (Shown in Schematic Diagram.) Input: NTSC Color Bar Signal (with 1kHz Audio Signal) CLKH CVBS 1DIV: 1.0V 10 s 1DIV: 1.0V 10 s 1DIV: 200mV 20 s R392 R201 Pin 11 of CN103A...

  • Page 17: Wiring Diagram

    WIRING DIAGRAM L3120WI...

  • Page 18: Different Parts From The Original Model (6615Lf4)

    Different parts from the original model (6615LF4) Ref. No. Description Part No. Ref. No. Description Part No. Q705 Not used MECHANICAL PARTS Q706 Not used FRONT CABINET L0200UA 1EM020010C R140 Not used Not used R143 Not used CONTROL PLATE L3120UL 1EM320480 R145 Not used...
  • Page 19 WF15L5 L3120UL 2005-06-25...