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Philips 42HFL5784D/F7 Service Manual
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Philips 42HFL5784D/F7 Service Manual

Philips 42HFL5784D/F7 Service Manual

42" lcd tv
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42" LCD TV
Service Manual
42HFL5784D/F7
(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.
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  • Page 1 42” LCD TV Service Manual 42HFL5784D/F7 (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 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 > ANT. Input ---------------------- 75 Ω Unbal., F type 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...

  • 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 S-TIGHT Power L23 GBJS3060 5(S-4), CN501, (M3X6 BIND HEAD+) Supply CN601, CN1001 S-TIGHT SCREW L24 GBHS3060 (M3X6 BIND 5.2±0.9lb·in 4(S-5), CN3105, HEAD+BLACK) Digital Main CN3801, CN3906,...
  • Page 14 Important precautions concerning the not damaged. Make sure the Function CBA Unit and Function Knob are securely in place when LCD Panel Assembly: re-assembling. 1. When you disassemble/re-assemble the Front • The screw tightening torque must be 5.2lb·in Cabinet, Function CBA Unit or IR Sensor CBA (6kgf·cm).
  • Page 15 [4] Digital Main CBA Unit Jack Holder (S-5) (S-5) (S-4) [3] Power Supply CBA (S-4) Fig. D2 A37HY_DC...
  • Page 16 [10] LCD Panel Assembly [7] Bottom Cover L (S-8) Hook (S-10) (S-7) Function Knob Hook [6] Speaker [9] Function CBA Unit (S-6) [6] Speaker (S-9) [8] Bottom Cover R [5] Stand Bracket Fig. D3 : Make sure to read all the precautions on page 4-2 when you disassemble/re-assemble the Function CBA Unit.
  • Page 17 [12] Front Cabinet (S-11) Decoration Plate (S-11) Hook Sensor Plate [11] IR Sensor CBA Unit (S-11) Fig. D4 : Make sure to read all the precautions on page 4-2 when you disassemble/re-assemble the Front Cabinet or IR Sensor CBA Unit. A37HY_DC...
  • Page 18 TV Cable Wiring Diagram To LCD Panel To LCD Panel Assembly Assembly Digital Main Power Supply CBA CBA Unit CN3906 CN1001 CN501 CN3601 CN3105 CN601 CN3801 To AC Cord IR Sensor CBA Unit To Speaker CN4051 CN4052 Function CBA Unit CN4001 Fig.

  • Page 19: Electrical Adjustment Instructions

    ELECTRICAL ADJUSTMENT INSTRUCTIONS Test Equipment Required General Note: “CBA” is abbreviation for “Circuit Board Assembly.” 1. Setup remote control Note: Electrical adjustments are required after 2. Color Analyzer, replacing circuit components and certain CA-310 (KONICA MINOLTA Luminance meter) or mechanical parts. It is important to perform measuring instrument as good as CA-310.
  • Page 20 1. Purity Check Mode This mode cycles through full-screen displays of red, green, blue, and white to check for non-active pixels. 1. Enter the service mode. 2. Each time the [7] button on the setup remote control is pressed, the display changes as follows. Purity Check Mode White mode [7] button...
  • Page 21 The White Balance Adjustment should be appears in the upper right of the screen as shown below.) performed when replacing the LCD Panel or Digital Main CBA. 2. White Balance Adjustment Internal (Single) Purpose: To mix red and blue beams correctly for pure white.

  • Page 22: 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 23: Firmware Renewal Mode

    FIRMWARE RENEWAL MODE This section enables the upgrading of the TV software • If set to Clone, Setup menu settings and channel via IP, USB or RF. It also allows the configuration of the map elements will be upgraded. Auto Update feature to enable the TV to be •...
  • Page 24 Source Start System Type Settings Direction Version Check Applications Execute Upgrades Factory Default Start - This function will initiate the TV upgrading process. Source System RF Channel 10Min Settings Version Check 30Min Execute 1Hour Applications Auto Update 4Hour Upgrades Factory Default Auto Update: “4 Hour”, “1 Hour”, “30 Min”, “10 Min”...

  • Page 25: Hotel Tv Mode

    HOTEL TV MODE Capturing a Clonefile (TV to USB) Installing a Clonefile (USB to TV) • All TV Setup menu settings and the TV channel • All TV Setup menu settings and the TV channel map will be copied from the TV to the attached USB map will be copied from the USB storage device to storage device.
  • Page 26 Status menu screen (optional) 1. Turn the power on. 2. Press the [RC5 SETUP] and [RECALL/INFO] button on the setup remote control in this order to display the status menu. You can switch the screen by using [B] or [s] button as shown below.

  • Page 27: 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 28 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. A37HZTR...
  • Page 29 [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 30 [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]> Replace the Digital Main CBA Unit. Replace the Digital Main CBA Unit. A37HZTR...

  • Page 31: Block Diagrams

    BLOCK DIAGRAMS 1. System Control Block Diagram A37HYBLS 10-1...
  • Page 32 2. Video/Audio Block Diagram A37HYBLVA 10-2...
  • Page 33 3. Digital Signal Process Block Diagram A37HYBLD 10-3...
  • Page 34 4. LED Backlight Drive Block Diagram A37HYBLBD 10-4...
  • Page 35 5. Power Supply Block Diagram A37HYBLP 10-5...

  • Page 36: 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 37 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 38 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 39 Power Supply 2 Schematic Diagram L1201 L1101 C1202 C1203 C1204 C1102 C1103 C1104 100uH 100uH 470/25V 470/25V D1201 D1101 SK210TD SK210TD L1202 L1102 C1216 C1217 C1218 C1212 C1213 D1203 C1116 C1117 C1118 C1112 C1113 D1103 22uH 22uH 1/100V 1/100V OPEN 47/100V 47/100V 1SS400...
  • Page 40 Function Schematic Diagram FUNCTION CBA UNIT TO IR SENSOR CBA UNIT CN4051 CN4001 KEY-IN1 C4002 D4001 MM5Z5V6B D4002 OPEN R4006 R4005 R4004 R4003 R4002 R4001 2.2K 2.2K 2.7K 4.7K 8.2K SW4007 SW4006 SW4005 SW4004 SW4003 SW4002 SW4001 POWER SOURCE MENU CH UP DOWN DOWN...
  • Page 41 IR Sensor Schematic Diagram C4054 R4060 R4053 RS4051 OPEN 2.7K RS-272 (REMOTE SENSOR) D4051 SMLE12WBC7W1HR POWER R4051 R4052 6.8K TO DIGITAL MAIN R4054 CN4052 CBA UNIT CN3105 1 AL+3.3V 2 P-ON+5V 3 LIGHT C4051 C4056 C4052 1000P 4 LED1 5 REMOTE C4053 C4055 R4055...
  • Page 42 Digital Main 1 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3101. IC3101 is divided into eight and shown as IC3101 (1/8) ~ IC3101 (8/8) in this Digital Main Schematic Diagram Section. CN3905 (NO CONNECTION) 1 P-ON+3.3V...
  • Page 43 Digital Main 2 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3101. IC3101 is divided into eight and shown as IC3101 (1/8) ~ IC3101 (8/8) in this Digital Main Schematic Diagram Section. DIGITAL MAIN CBA UNIT IC3101(2/8) MN2WS0251A...
  • Page 44 Digital Main 3 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3101. IC3101 is divided into eight and shown as IC3101 (1/8) ~ IC3101 (8/8) in this Digital Main Schematic Diagram Section. CONTINUE DIGITAL 11 IC3101(3/8)
  • Page 45 Digital Main 4 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3101. IC3101 is divided into eight and shown as IC3101 (1/8) ~ IC3101 (8/8) in this Digital Main Schematic Diagram Section. CONTINUE DIGITAL 7 R3031...
  • Page 46 Digital Main 5 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3101. IC3101 is divided into eight and shown as IC3101 (1/8) ~ IC3101 (8/8) in this Digital Main Schematic Diagram Section. DIGITAL MAIN CBA UNIT IC3101(5/8) MN2WS0251A...
  • Page 47 Digital Main 6 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3101. IC3101 is divided into eight and shown as IC3101 (1/8) ~ IC3101 (8/8) in this Digital Main Schematic Diagram Section. DIGITAL MAIN CBA UNIT CONTINUE DIGITAL 10...
  • Page 48 Digital Main 7 Schematic Diagram R3610 R3607 R3611 C3604 OPEN 3.3K IC3601 MP2303ADN-C258 (+3.3V REG.) C3607 0.047 C3612 0.01 C3609 C3616 C3610 OPEN COMP R3606 4.7K R3677 R3604 C3611 4700P IC3606 R3687 R3605 L3604 D3607 MP2303ADN-C258 OPEN 22uH HSC119 (+1.5V REG.) C3661 C3967 0.047...
  • Page 49 Digital Main 8 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3101. IC3101 is divided into eight and shown as IC3101 (1/8) ~ IC3101 (8/8) in this Digital Main Schematic Diagram Section. CONTINUE DIGITAL 10 DIGITAL MAIN CBA UNIT...
  • Page 50 Digital Main 9 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3101. IC3101 is divided into eight and shown as IC3101 (1/8) ~ IC3101 (8/8) in this Digital Main Schematic Diagram Section. DIGITAL MAIN CBA UNIT R3871 R3727...
  • Page 51 Digital Main 10 Schematic Diagram CONTINUE CONTINUE DIGITAL 6 DIGITAL 7 AMP+13V P-ON+3.3V P-ON+5V (NO CONNECTION) CN3502 R3568 R3560 R3553 Q3512 Q3513 2SA1576UBTLQ 2SA1576UBTLQ R3559 (SWITCHING) (SWITCHING) R3558 D3513 R3557 MM5Z3V3B Q3511 2SC4081UBTLQ (SWITCHING) R3561 C3557 C3560 C3559 C3558 C3554 R3567 100K Q3506...
  • Page 52 Digital Main 11 Schematic Diagram 2 NOTE: The order of pins shown in this diagram is different from that of actual IC3501. CONTINUE DIGITAL 7 CONTINUE VCC+1.8V DIGITAL 3 P-ON+3.3V IC3501 MDI(0~7) MDO(0~7) LGDT1001 AL+5V (Pro:Idiom) MCLKI C3528 T3501 C3529 OPEN R3526 R3525...
  • Page 53 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 54 Power Supply CBA Bottom 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 55: Wiring Diagram

    WIRING DIAGRAM 12-1 A37HYWI...

  • Page 56: Exploded Views

    EXPLODED VIEWS LCD1 CL3013 Digital Main CBA Unit CL3701 CL3101 Power Supply CBA IR Sensor CBA Unit AC601 CL4001 A4-1 A4-2 Function CBA Unit CL3801 SP3801 See Electrical Parts List for parts with this mark. SP3802 SSK1 or SSK2 13-1 A37HY_CEX...
  • Page 57 Packing SSK1 SSK2 Tape Tape Fixlon Tape Packing Tape Packing Tape Packing Tape R S I R S I R E A R E A Some Ref. Numbers Packing Tape are not in sequence. 13-2 A37HY_PEX...

  • Page 58: Parts List

    MECHANICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. LCD PANEL ASSEMBLY Before replacing any of these components, read carefully the product safety notice in this service Ref. No. Description Part No. manual.
  • Page 59 ELECTRICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a MSW ASSEMBLY # have special characteristics important to safety. Ref. No. Description Part No. Before replacing any of these components, read MSW ASSEMBLY A3AQZMSW-001 carefully the product safety notice in this service Consists of the following manual.
  • Page 60 Ref. No. Description Part No. Ref. No. Description Part No. C1209 CHIP CERAMIC CAP .(1608) B K 1000pF/50V CHD1JK30B102 D1305 ZENER DIODE SMD TFZVTR24B QD1B00TFZV24 C1210 CHIP CERAMIC CAP .(1608) B K 1µF/25V CHD1EK30B105 C1212 ELECTROLYTIC CAP SK100M470YZZP50R CE2AMASTH470 IC601# IC PHOTOCOUPLER TLP781F(D4-FUNBLL F) QPEL781FBLLF C1213...
  • Page 61 Ref. No. Description Part No. Ref. No. Description Part No. RES CHIP 1608 1/10W J 15k Ω RES CHIP 1608 1/10W J 120 Ω R694 RRXA153HH013 R1309 RRXA121HH013 RES CHIP 1608 1/10W F 22.0k Ω RES CHIP 1608 1/10W J 120 Ω R1101 RTW2202HH008 R1310...

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