Magnavox 40ME313V/F7 Service Manual
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Magnavox 40ME313V/F7 Service Manual

40” lcd tv chassis fl13.12
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40" LCD TV
chassis FL13.12

SERVICE MANUAL

Contents
40ME313V/F7
MAGNAVOX
(Serial No.: DS1)
© 2013 Funai Electric Co., Ltd.
All rights reserved. No part of this manual may be reproduced, copied, transmitted, disseminated, transcribed,
downloaded or stored in any storage medium, in any form or for any purpose without the express prior written
consent of Funai. Furthermore, any unauthorized commercial distribution of this manual or any revision hereto
is strictly prohibited.
Information in this document is subject to change without notice. Funai reserves the right to change the content
herein without the obligation to notify any person or organization of such changes.
with the
design is a registered trademark of Funai Electric Co., Ltd and may not be used in any way
without the express written consent of Funai. All other trademarks used herein remain the exclusive property of
their respective owners. Nothing contained in this manual should be construed as granting, by implication or
otherwise, any license or right to use any of the trademarks displayed herein. Misuse of any trademarks or any
other content in this manual is strictly prohibited. Funai shall aggressively enforce its intellectual property rights
to the fullest extent of the law.
130805

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Summary of Contents for Magnavox 40ME313V/F7

  • Page 1: Service Manual

    40” LCD TV chassis FL13.12 SERVICE MANUAL Contents 40ME313V/F7 MAGNAVOX (Serial No.: DS1) © 2013 Funai Electric Co., Ltd. All rights reserved. No part of this manual may be reproduced, copied, transmitted, disseminated, transcribed, downloaded or stored in any storage medium, in any form or for any purpose without the express prior written consent of Funai.

  • Page 2: Important Safety Notice

    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 Important Safety Precautions .

  • Page 4: Specifications

    SPECIFICATIONS < TUNER / NTSC > Description Condition Unit Nominal Limit 1. AFT Pull-In Range ±2.3 ±2.1 TV.ch.4 dBμV 2. Synchronizing Sens. CA.ch.31 dBμV CA.ch.87 dBμV < TUNER / ATSC > Description Condition Unit Nominal Limit 1. Received Freq. Range (-28dBm) ±100 ch.4 -76/0...

  • Page 5: 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 6 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 7 Precautions during Servicing A. Parts identified by the # symbol are critical for safety. Replace only with part number specified. B. In addition to safety, other parts and assemblies are specified for conformance with regulations applying to spurious radiation. These must also be replaced only with specified replacements.
  • Page 8 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 9: Standard Notes For Servicing

    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.
  • Page 10 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.
  • Page 11 With Iron Wire: 2. Installation 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 12 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 13: Cabinet Disassembly Instructions

    CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart Step/ Fig. Loc. Part Removal Note This flowchart indicates the disassembly steps for the cabinet parts and the CBA in order to gain access to Front items to be serviced. When reassembling, follow the [10] D4 8(S-11) Cabinet...
  • Page 14 • Make sure to replace the Control Plate to a new one when replacing the Front Cabinet. [2] Rear Cover (S-3) (S-3) (S-2) [1] Stand Assembly (S-1) Fig. D1 FL13.12_DC...
  • Page 15 [4] Digital Main CBA Unit Jack Holder (S-4) (S-5) [3] Power Supply CBA Fig. D2 [9] LCD Panel Assembly [7] Bottom Cover L (S-8) (S-7) [6] Speaker (S-10) (S-6) [8] Bottom Cover R (S-9) [6] Speaker [5] Stand Bracket Fig. D3 FL13.12_DC...
  • Page 16 [10] Front Cabinet Blind Label (S-11) (S-11) Hook Shield Plate (S-11) Sensor Lens Control Plate (S-11) [11] Function CBA Unit Fig. D4 : Make sure to read all the precautions on pages 4-1 and 4-2 when you disassemble/re-assemble the Front Cabinet or Function CBA Unit. FL13.12_DC...
  • Page 17 TV Cable Wiring Diagram To LCD Panel Assembly To LCD Panel Assembly Power Supply CBA Digital Main CN1001 CBA Unit CN3013 CN501 CN3602 CN601 CN3801 CN3101 Function CBA Unit To Speaker To AC Cord CN4052 Fig. D5 FL13.12_DC...

  • Page 18: Electrical Adjustment Instructions

    ELECTRICAL ADJUSTMENT INSTRUCTIONS 1. Purity Check Mode General Note: “CBA” is abbreviation for “Circuit Board Assembly.” This mode cycles through full-screen displays of red, Note: Electrical adjustments are required after green, blue, and white to check for non-active pixels. replacing circuit components and certain 1.

  • Page 19: White Balance Adjustment

    The White Balance Adjustment should be 6. Press [MENU] button. The internal Raster signal appears in the screen. (“Internal (Single)” appears performed when replacing the LCD Panel in the upper right of the screen as shown below.) or Digital Main CBA. 2.

  • Page 20: How To Initialize The Lcd Tv

    HOW TO INITIALIZE THE LCD TV The purpose of initialization is to place the set in a new out of box condition. The customer will be prompted to select a language and program channels after the set has been initialized. To put the program back at the factory-default, initialize the LCD TV using the following procedure.

  • Page 21: Firmware Renewal Mode

    FIRMWARE RENEWAL MODE Equipment Required a. USB storage device b. Remote Control Unit Firmware Update Procedure User Upgrade (Filename example: TVNB1012_00_UG_XX91_BA0.bin) Upgrade the firmware only. The setting values will not be initialized. The User Upgrade and the Firmware Upgrade (Factory Upgrade) will be done by the same file. If you want to upgrade the firmware and initialize the setting values also, add “FACT_”...
  • Page 22 Factory Upgrade (Firmware Upgrade/Flash Upgrade) Firmware Upgrade (Filename example: FACT_TVNB1012_00_UG_XX91_BA0.bin) Upgrade the firmware and initialize the setting values. The User Upgrade and the Firmware Upgrade (Factory Upgrade) will be done by the same file. If you want to upgrade the firmware and initialize the setting values also, add “FACT_” at the beginning of the filename. If you want to upgrade the firmware only and leave the setting values as they are, eliminate the “FACT_”...

  • Page 23: Troubleshooting

    TROUBLESHOOTING [Power Supply Section] FLOW CHART NO.1 The power cannot be turned on. Is the fuse (F602) normal? See FLOW CHART No.2 <The fuse blows out.> Check if there is any leak or short-circuit on the primary circuit component and repair it if defective. (C607, C612, D601, D602, D603, D604, D605, D606, D607A, D608, D609A, D621, D623, Q601, Q602, Is the P-ON+21V line voltage normal?
  • Page 24 FLOW CHART NO.5 P-ON+21V is not output. Check D650, D651, D652, D659, C651, C652, C653, C667, C668 and their periphery circuit. Repair it if defective. FLOW CHART NO.6 AMP+13V is not output. FLOW CHART NO.7 AL+3.3V is not output. Check D653, D654, D655, C654, C655, R676, R678, R679, R683, R684, R688, R689 and their periphery circuit.
  • Page 25 [Video Signal Section] FLOW CHART NO.1 The key operation is not functioning. Replace the Function CBA Unit. Replace the Digital Main CBA Unit. FLOW CHART NO.2 No operation is possible from the remote control unit. (Operation is possible from the unit.) Check AL+3.3V line and repair it if defective.
  • Page 26 [Audio Signal Section] FLOW CHART NO.1 Audio is not output normally. See FLOW CHART NO.6 <AMP+13V is not output. [Power Supply Section]> See FLOW CHART NO.7 <AL+3.3V is not output. [Power Supply Section]> Replace the Digital Main CBA Unit. FL13.12ATR...

  • Page 27: Block Diagrams

    BLOCK DIAGRAMS 1. System Control Block Diagram FL13.12ABLS...
  • Page 28 2. Video/Audio Block Diagram FL13.12ABLVA...
  • Page 29 3. Digital Signal Process Block Diagram FL13.12ABLD...
  • Page 30 4. LED Backlight Drive Block Diagram FL13.12ABLBD...
  • Page 31 5. Power Supply Block Diagram FL13.12ABLP...

  • Page 32: Schematic Diagrams / Cba And Test Points

    SCHEMATIC DIAGRAMS / CBA AND TEST POINTS Standard Notes WARNING 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.
  • Page 33 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 34 Power Supply 1 Schematic Diagram CAUTION ! Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. NOTE: CAUTION ! : For continued protection against risk of fire, If Main Fuse (F602) 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 2.5A, 250V fuse.
  • Page 35 Power Supply 2 Schematic Diagram L1201 L1101 C1202 C1203 C1204 C1102 C1103 C1104 OPEN 100uH OPEN OPEN OPEN 470/25V D1201 D1101 OPEN SK210TD L1202 L1102 C1216 C1217 C1218 C1212 C1213 D1203 C1116 C1117 C1118 C1112 C1113 D1103 OPEN 22uH OPEN OPEN OPEN OPEN...
  • Page 36 Function Schematic Diagram FUNCTION CBA UNIT C4054 R4052 R4060 TO DIGITAL MAIN 6.8K 8.2K CN4052 CBA UNIT CN3101 R4053 1 AL+3.3V OPEN 2 P-ON+5V 3 LIGHT 4 LED1 D4051 R4055 R4059 LTST-C190KRKT OPEN OPEN 5 REMOTE IC4051 POWER PH5502B2NA1-E4 6 KEY-IN1 (LIGHT SENSOR) 7 GND 8 SCL(NU)
  • Page 37 Digital Main 1 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3001. IC3001 is divided into five and shown as IC3001 (1/5) ~ IC3001 (5/5) in this Digital Main Schematic Diagram Section. DIGITAL MAIN CBA UNIT CONTINUE DIGITAL 5...
  • Page 38 Digital Main 2 Schematic Diagram CONTINUE DIGITAL MAIN CBA UNIT DIGITAL 1 PANEL-VCOM-PWM CELL-PWR-CTRL R3039 LCD+12V OPEN R3035 OPEN CN3001 (NO CONNECTION) 31 LCD+12V C3514 C3513 30 LCD+12V OPEN OPEN 29 LCD+12V R3028 28 GND OPEN R3037 OPEN 27 VCOM-PWM C3918 C3921 C3916...
  • Page 39 Digital Main 3 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3001. IC3001 is divided into five and shown as IC3001 (1/5) ~ IC3001 (5/5) in this Digital Main Schematic Diagram Section. DIGITAL MAIN CBA UNIT IC3001(2/5) R3231...
  • Page 40 Digital Main 4 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3001. IC3001 is divided into five and shown as IC3001 (1/5) ~ IC3001 (5/5) in this Digital Main Schematic Diagram Section. IC3001(3/5) MSD8200DS-S1 DIGITAL MAIN CBA UNIT...
  • Page 41 Digital Main 5 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3001. IC3001 is divided into five and shown as IC3001 (1/5) ~ IC3001 (5/5) in this Digital Main Schematic Diagram Section. DIGITAL MAIN CBA UNIT CONTINUE DIGITAL 3...
  • Page 42 Digital Main 6 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3001. IC3001 is divided into five and shown as IC3001 (1/5) ~ IC3001 (5/5) in this Digital Main Schematic Diagram Section. TU3901 (TUNER UNIT) DIGITAL MAIN CBA UNIT IC3001(5/5)
  • Page 43 Power Supply CBA Top View Because a hot chassis ground is present in the power supply circuit, an isolation transformer must be used when repairing. Also, in order to have the ability to increase the input slowly, CAUTION ! when troubleshooting this type of power supply circuit, Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
  • Page 44 Power Supply CBA Bottom View Because a hot chassis ground is present in the power supply circuit, an isolation transformer must be used when repairing. Also, in order to have the ability to increase the input slowly, CAUTION ! when troubleshooting this type of power supply circuit, Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.

  • Page 45: Wiring Diagram

    WIRING DIAGRAM 11-1 FL13.12AWI...

  • Page 46: Exploded Views

    EXPLODED VIEWS LCD1 CL3012 Digital Main CBA Unit Power Supply CBA CL3701 Function CBA Unit CL3801 CL3101 AC601 A4-2 A4-1 See Electrical Parts List for parts with this mark. SP3801 SP3802 SSK1 12-1 FL13.12-A_CEX...
  • Page 47 Packing SSK1 Tape Packing Tape Packing Tape Some Ref. Numbers are not in sequence. 12-2 FL13.12-A_PEX...

  • Page 48: Parts List

    PARTS LIST [40ME313V/F7 (Serial No.: DS1)] Mechanical Parts LCD PANEL ASSEMBLY PRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. Ref. No. Description Part No. Before replacing any of these components, read LCD1# LCD PANEL ASSEMBLY...

  • Page 49: Electrical Parts

    Electrical Parts PRODUCT SAFETY NOTE: Products marked with a Ref. No. Description Part No. # have special characteristics important to safety. C1001 ELECTROLYTIC CAP . 470µF/25V M(105C) CE1EMASTH471 Before replacing any of these components, read C1002 CHIP CERAMIC CAP .(1608) B K 1µF/25V CHD1EK30B105 carefully the product safety notice in this service C1102...
  • Page 50 Ref. No. Description Part No. Ref. No. Description Part No. RES CHIP 1608 1/10W 0 Ω D661 SWITCHING DIODE 1SS400 TE61 QD1Z001SS400 R666 RRXA000HH014 RES CHIP 1608 1/10W J 8.2k Ω D1101 DIODE SCHOTTKY SMD SK210TD ND1Z0SK210TD R667 RRXA822HH013 RES CHIP 1608 1/10W J 47k Ω D1103 SWITCHING DIODE 1SS400 TE61 QD1Z001SS400...
  • Page 51 Ref. No. Description Part No. RES CHIP 1608 1/10W F 10.0k Ω R1321 RTW1002HH008 RES CHIP 3216 1/4W J 5.1k Ω R1322 RRX4512HH034 RES CHIP 3216 1/4W J 5.1k Ω R1323 RRX4512HH034 RES CHIP 1608 1/10W J 1.0k Ω R1324 RRXA102HH013 RES CHIP 1608 1/10W J 51 Ω...

  • Page 52: Revision History

    REVISION HISTORY Chassis FL13.12 • 2013/8/5 40ME313V/F7 (Serial No.: DS1) 1st draft added 14-1 FL13.12REV...
  • Page 53 COMPARISON LIST OF MODEL NAMES Chassis FL13.12 40ME313V/F7 (DS1) A3AP1UH...

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