FUNAI 32ME303V/F8 Service Manual

32” lcd tv

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32" LCD TV

chassis PL13.36

SERVICE MANUAL

Contents

32ME303V/F8

MAGNAVOX

(Serial No.: XA1)

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

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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.

130501

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Page 1 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.
Page 2 IMPORTANT SAFETY NOTICE Proper service and repair is important to the safe, reliable operation of all P&F Equipment. The service procedures recommended by P&F 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 dBμ 2. Synchronizing Sens. CA.ch.31 dBμ CA.ch.87 dBμ < 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 Screw Torque Specification Step/ Fig. Loc. Part Removal Note Ref. Part Tightening Part Name Number Torque SCREW P-TIGHT Power 4(S-5), CN501, L4 GBHP3080 (M3X8 BIND Supply CN601, CN1001 HEAD+BLK) SCREW S-TIGHT L23 GBJS3060 5.2±0.9lbf·in 4(S-6), CN3013, (M3X6 BIND HEAD+) Digital Main CN3006, CN3101, S-TIGHT SCREW...
Page 14 • The Function CBA Unit and Sensor Lens are fixed in • Make sure the tact switches operate normally after place by the hooks. Make sure these hooks are not replacing the Front Cabinet, Function CBA Unit, damaged. Make sure the Function CBA Unit and Sensor Lens, or Shield Plate.
Page 15 [4] Stand Holder (S-4) (S-4) [3] Speaker (S-4) Fig. D2 [6] Digital Main CBA Unit Jack Holder (S-6) [5] Power Supply CBA (S-5) Fig. D3 PL13.36_DC...
Page 16 [8] Front Cabinet [7] LCD Panel Assembly Hook Shield Plate (S-7) Sensor Lens Control Plate [9] Function CBA Unit (S-7) 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. PL13.36_DC...
Page 17 TV Cable Wiring Diagram To LCD Panel Assembly To LCD Panel Assembly Digital Main CBA Unit Power Supply CBA CN3013 CN1001 CN3701 CN501 CN601 CN3801 CN3101 To AC Cord Function CBA Unit To Speaker CN4052 Fig. D5 PL13.36_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 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: TVNB012_00_UF_XX91_AC.ecc) 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_TVNB012_00_UF_XX91_AC.ecc) 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, D601, D602, D603, D604, D605, D607A, D608, D609A, D621, D623, Q601, Q602, Q621, Is the P-ON+21V line voltage normal?
Page 24 FLOW CHART NO.5 P-ON+21V is not output. Check D650, D651, C651, C652, C653 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. PL13.36ATR...
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. PL13.36ATR...
Page 27: Block Diagrams
BLOCK DIAGRAMS 1. System Control Block Diagram PL13.36BLS...
Page 28 2. Video/Audio Block Diagram PL13.36BLVA...
Page 29 3. Digital Signal Process Block Diagram PL13.36BLD...
Page 30 4. LED Backlight Drive Block Diagram PL13.36BLBD...
Page 31 5. Power Supply Block Diagram PL13.36BLP...
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 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 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 POWER IC4051 6 KEY-IN1 OPEN 7 GND 8 SCL(NU)
Page 36 Digital Main 1 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3005. IC3005 is divided into six and shown as IC3005 (1/6) ~ IC3005 (6/6) in this Digital Main Schematic Diagram Section. CONTINUE R3085 DIGITAL 4...
Page 37 Digital Main 2 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3005. IC3005 is divided into six and shown as IC3005 (1/6) ~ IC3005 (6/6) in this Digital Main Schematic Diagram Section. DIGITAL MAIN CBA UNIT TU3901 (TUNER UNIT) IC3013...
Page 38 Digital Main 3 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3005. IC3005 is divided into six and shown as IC3005 (1/6) ~ IC3005 (6/6) in this Digital Main Schematic Diagram Section. C3009 R3082 IC3005(3/6)
Page 39 Digital Main 4 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3005. IC3005 is divided into six and shown as IC3005 (1/6) ~ IC3005 (6/6) in this Digital Main Schematic Diagram Section. CONTINUE DIGITAL 3 IC3005(4/6)
Page 40 Digital Main 5 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3005. IC3005 is divided into six and shown as IC3005 (1/6) ~ IC3005 (6/6) in this Digital Main Schematic Diagram Section. CONTINUE DIGITAL 4 P-ON+3.3V...
Page 41 Digital Main 6 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3005. IC3005 is divided into six and shown as IC3005 (1/6) ~ IC3005 (6/6) in this Digital Main Schematic Diagram Section. CONTINUE DIGITAL 4 HDMI-...
Page 42 Power Supply CBA Top View Because a hot chassis ground is present in the power supply CAUTION ! circuit, an isolation transformer must be used when repairing. Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. CAUTION ! : For continued protection against risk of fire, Also, in order to have the ability to increase the input slowly,...
Page 43 Power Supply CBA Bottom View CAUTION ! Because a hot chassis ground is present in the power supply Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. circuit, an isolation transformer must be used when repairing. CAUTION ! : For continued protection against risk of fire, If Main Fuse (F602) is blown , check to see that all components in the power supply...
Page 44: Wiring Diagrams
WIRING DIAGRAM 11-1 PL13.36WI...
Page 45: Exploded Views
EXPLODED VIEWS LCD1 CL3006 Digital Main CBA Unit CL3701 GP002 GP001 Power Supply CBA Function CBA Unit GP003 CL3801 AC601 CL3101 SP3801 SP3802 See Electrical Parts List for parts with this mark. SSK1 12-1 PL13.36CEX...
Page 46 Packing SSK1 Tape Tape Tape Packing Tape F R O Some Ref. Numbers are Packing Tape not in sequence. 12-2 PL13.36_PEX...
Page 47: Parts List
PARTS LIST [32ME303V/F8 (Serial No.: XA1)] 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 48 Electrical Parts PRODUCT SAFETY NOTE: Products marked with a Ref. No. Description Part No. # have special characteristics important to safety. C605 CAP ELE 330µF/200V/M/87 CEB3310S6016 Before replacing any of these components, read C606 CERAMIC CAP . 820pF/2kV CA3D821PAN04 carefully the product safety notice in this service C607 CHIP CERAMIC CAP .
Page 49 Ref. No. Description Part No. Ref. No. Description Part No. RES CHIP 1608 1/10W F 68.0k Ω D656 DIODE FAST RECOVERY RS1BJTD ND1Z0RS1BJTD R675 RTW6802HH008 RES CHIP 1608 1/10W J 10k Ω D657 ZENER DIODE MM5Z11B ND1B0MM5Z11B R677 RRXA103HH013 RES CHIP 1608 1/10W J 100 Ω D660 IC SHUNT REGULATOR SL431A-AT NSZBA0TAUK01...
Page 50: Revision History
REVISION HISTORY Chassis PL13.36 • 2013/5/1 32ME303V/F8 (Serial No.: XA1) Added 14-1 PL13.36REV...
Page 51 COMPARISON LIST OF MODEL NAMES Chassis PL13.36 32ME303V/F8 (XA1) A3AFFMA...

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