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.
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.
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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...
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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.
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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.
STANDARD NOTES FOR SERVICING Circuit Board Indications How to Remove / Install Flat Pack-IC 1. The output pin of the 3 pin Regulator ICs is 1. Removal indicated as shown. With Hot-Air Flat Pack-IC Desoldering Machine: Top View Bottom View 1.
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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 all pins of the flat pack-IC.
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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.
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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.
CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart Removal Step/ Remove/*Unhook/ This flowchart indicates the disassembly steps for the 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.
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[5] Function CBA [4] Rear Cabinet S-1A S-1B S-1B [3] Stand Cover [2] Stand Hinge [1] Stand Base Plate Fig. D1 L4400DC...
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[8] Jack Holder(A) [6] Chassis Bracket S-10 [9] Shield Box S-10 [7] Jack Holder(D) Fig. D2 L4400DC...
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S-13 [12] Inverter CBA S-14 S-11 S-15 [13] PCB Holder S-15 S-12 [11] Digital Main CBA Unit [10] Main CBA Fig. D3 L4400DC...
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.
1. Purity Check Mode The following adjustment normally are not attempted in the field. Only when replacing the This mode cycles through full-screen displays of red, LCD Panel then adjust as a preparation. green, blue, and white to check for non-active pixels. 2.
3. Auto Calibration 4. Flicker Adjustment Purpose: To bring the color adjustment of each *This adjustment is needed when reparing T-CON component into standard alignment. CBA. 1. Enter the Service mode. (See page 5-1.) Symptom of Misadjustment: The color adjustment differs from component to component.
HOW TO INITIALIZE THE LCD TELEVISION How to initialize the LCD television: 1. To turn the power on, press [POWER] button on the normal remote control unit or the unit. 2. Use the service remote control unit. (Refer to “ELECTRICAL ADJUSTMENT INSTRUCTIONS” section.
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;...
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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.
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Main 1/5 Schematic Diagram VOLTAGE CHART CN112 Pin No. Voltage CN114 Pin No. Voltage L4400SCM1...
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Main 2/5 Schematic Diagram VOLTAGE CHART CN113 Pin No. Voltage L4400SCM2...
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Main 3/5 Schematic Diagram VOLTAGE CHART CN111 Pin No. Voltage 32.7 L4400SCM3...
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Main 5/5 Schematic Diagram 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.
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Function Schematic Diagram VOLTAGE CHART CN101 Pin No. Voltage L4400SCF...
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Digital Main 1/8 Schematic Diagram L4400SCD1 8-11...
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Digital Main 2/8 Schematic Diagram L4400SCD2 8-12...
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Digital Main 3/8 Schematic Diagram 1 NOTE: 1. The order of pins shown in this diagram is different from that of actual IC1504. 2. IC1504 is divided into four and shown as IC1504 (1/4) ~ IC1504 (4/4) in this Digital Main Schematic Diagram Section. L4400SCD3 8-13...
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Digital Main 4/8 Schematic Diagram 1 NOTE: 1. The order of pins shown in this diagram is different from that of actual IC1504. 2. IC1504 is divided into four and shown as IC1504 (1/4) ~ IC1504 (4/4) in this Digital Main Schematic Diagram Section. L4400SCD4 8-14...
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Digital Main 5/8 Schematic Diagram 1 NOTE: 1. The order of pins shown in this diagram is different from that of actual IC1504. 2. IC1504 is divided into four and shown as IC1504 (1/4) ~ IC1504 (4/4) in this Digital Main Schematic Diagram Section. 8-15 L4400SCD5...
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Digital Main 6/8 Schematic Diagram L4400SCD6 8-16...
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Digital Main 7/8 Schematic Diagram 1 NOTE: 1. The order of pins shown in this diagram is different from that of actual IC1504. 2. IC1504 is divided into four and shown as IC1504 (1/4) ~ IC1504 (4/4) in this Digital Main Schematic Diagram Section. 8-17 L4400SCD7...
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Digital Main 8/8 Schematic Diagram 8-18 L4400SCD8...
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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...
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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...
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Function CBA Top View Function CBA Bottom View BL4300F01011-2 8-21...
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LED CBA Top View LED CBA Bottom View 8-22 BL4300F01011-3...
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Inverter CBA Top View BL4400F01021 8-23...
WAVEFORMS WF1 ~ WF7 = Waveforms to be observed at Waveform check points. (Shown in Schematic Diagram.) Input: NTSC Color Bar Signal (with 1kHz Audio Signal) Pin 2 of CN113 Pin 13 of CN114 CVBS 0.2V 20µs VIDEO-Pb 0.2V 20µs Pin 21 of CN114 Pin 14 of CN114 20µs...
EXPLODED VIEWS Cabinet Function CBA Inverter CBA SP802 CLN804 Main CBA LED CBA CLN253 CLN803 LCD1 AC601 SP801 Digital Main CBA Unit See Electrical Parts List for parts with this mark. 11-1 L4400CEX...
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Packing Packing Tape Some Ref. Numbers are not in sequence. Packing Tape Packing Tape Tape Packing Tape Packing Tape Packing Tape 11-2 L4400PEX...
ELECTRICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a Ref. No. Description Part No. # have special characteristics important to safety. C451 CHIP CERAMIC CAP .(1608) F Z 0.1µF/50V CHD1JZ30F104 Before replacing any of these components, read C452 ELECTROLYTIC CAP . 100µF/10V M CA1A101SP085 carefully the product safety notice in this service C453...
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Ref. No. Description Part No. Ref. No. Description Part No. C606# ALUMINUM ELECTROLYTIC CAP 470µF/200V CA2D471NC190 C810 ELECTROLYTIC CAP . 10µF/50V M CA1J100SP085 C811 ELECTROLYTIC CAP . 100µF/10V M CA1A101SP085 C609 CERAMIC CAP . BN 1000pF/2KV CCD3DKA0B102 C813 ELECTROLYTIC CAP 1µF/50V M CA1J1R0SP085 C610 FILM CAP .(P) 0.033µF/50V J...
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Ref. No. Description Part No. Ref. No. Description Part No. D607# ZENER DIODE MTZJT-7727B QDTB00MTZJ27 Q537 TRANSISTOR KTC3199-GR-AT/P NQS4KTC3199P D608 ZENER DIODE MTZJT-777.5B QDTB0MTZJ7R5 Q601# FET MOS 2SK3797(Q) QFQZ02SK3797 D609 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 Q602# TRANSISTOR 2SC2120-O(TE2 F T) QQS02SC2120F D610 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133...