Philips 50HFL3683S/F7 Service Manual
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Philips 50HFL3683S/F7 Service Manual

Philips 50HFL3683S/F7 Service Manual

50” lcd tv
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50" LCD TV
Service Manual
50HFL3683S/F7
(Serial No.: DS1)
© 2012 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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Summary of Contents for Philips 50HFL3683S/F7

  • Page 1 50” LCD TV Service Manual 50HFL3683S/F7 (Serial No.: DS1) © 2012 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 dBµ 2. Synchronizing Sens. CA.ch.31 dBµ CA.ch.87 dBµ < 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 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 2(S-13), items to be serviced. When reassembling, follow the Function Sensor Holder, steps in reverse order.
  • Page 14 (S-3) (S-3) (S-4) (S-6) [3] Rear Cabinet (S-5) (S-3) (S-3) (S-4) (S-4) (S-3) (S-3) (S-4) (S-3) (S-1) [1] Stand Hinge Assembly [2] Stand Base Assembly (S-2) Fig. D1 A21UZ_DC...
  • Page 15 Jack Holder (S-8) (S-8) (S-7) (S-8) [5] Power Supply CBA [4] Digital Main CBA Unit Fig. D2 [8] Speaker (S-12) Speaker Holder [7] Stand Bracket Sensor Plate Sensor Holder (S-13) (S-10) [9] Function CBA (S-11) (S-12) (S-9) (S-10) (S-11) [8] Speaker CL601 Speaker Holder [6] AC Inlet Holder...
  • Page 16 [12] Wall Mount Bracket Top [14] Front Cabinet (S-16) (S-16) (S-14) [10] Digital PCB Holder (S-15) [13] LCD Module Assembly [11] Power PCB Holder Fig. D4 A21UZ_DC...
  • Page 17 TV Cable Wiring Diagram To LCD Module Assembly Power Supply CBA To LCD Module Assembly CN1001 Digital Main CBA Unit CN3013 CN701 CN3701 CN601 CN3801 CN3101 To AC Cord To Speaker Function CBA CN4001 Fig. D5 A21UZ_DC...

  • Page 18: Electrical Adjustment Instructions

    ELECTRICAL ADJUSTMENT INSTRUCTIONS General Note: “CBA” is abbreviation for 1. Purity Check Mode “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 4. The update will start and the following will appear in the screen. a. USB storage device " * " differs depending on the models. b. Remote Control Unit Software Upgrade Software upgrade in progress. Please wait. Firmware Update Procedure Do not remove the USB storage device or turn the TV off while upgrade is in progress.

  • Page 22: Hotel Tv Mode

    HOTEL TV MODE TV to USB settings USB to TV settings • The channel map and all other settings except for • The channel map and all other settings except for the factory setting will be copied from TV to USB the factory setting will be copied from USB storage storage device.
  • Page 23 Status menu screen (optional) 1. Turn the power on. 2. Press the [RECALL/INFO] button on the setup remote control to display the status menu as shown below. " * " differs depending on the models. Model number ************* SW version *******-**-**-****-** SPI Port TV**.*...

  • Page 24: Troubleshooting

    TROUBLESHOOTING [Power Supply Section] FLOW CHART NO.1 The power cannot be turned on. Is the fuse (F601) 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. (D601, D602, D603, D604, D612, IC602, Q601, Q602, T601, R613) Is the P-ON+12V line voltage normal?
  • Page 25 FLOW CHART NO.5 AMP+24V is not output. Check C707, C708, D701, D702 and their periphery circuit. Repair it if defective. FLOW CHART NO.6 P-ON+12V is not output. Check C710, C711, D703 and their periphery circuit. Repair it if defective. FLOW CHART NO.7 P-ON+5V is not output.
  • Page 26 [Video Signal Section] FLOW CHART NO.1 The key operation is not functioning. Is approximately +3.3V voltage supplied to Pin(1) of CN4001? Replace Digital Main CBA Unit. Replace IC4001 Check AL+3.3V line and or Function CBA. repair it if defective. FLOW CHART NO.2 No operation is possible from the remote control unit.
  • Page 27 [Audio Signal Section] FLOW CHART NO.1 Audio is not output normally. See FLOW CHART NO.5 <AMP+24V is not output. [Power Supply Section]> See FLOW CHART NO.8 <AL+3.3V is not output. [Power Supply Section]> Replace Digital Main CBA Unit. A21UZ_TR...

  • Page 28: Block Diagrams

    BLOCK DIAGRAMS 1. System Control Block Diagram A21UZBLS 10-1...
  • Page 29 2. Video/Audio Block Diagram 10-2 A21UZBLVA...
  • Page 30 3. Digital Signal Process Block Diagram 10-3 A21UZBLD...
  • Page 31 4. Power Supply Block Diagram 10-4 A21UZBLP...

  • 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 NOTE: CAUTION ! The voltage for parts in hot circuit is measured using Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. CAUTION ! : For continued protection against risk of fire, hot GND as a common terminal.
  • Page 35 Power Supply 2 Schematic Diagram POWER SUPPLY CBA HOT CIRCUIT. BE CAREFUL. R1051 D1011A TO DIGITAL MAIN D1011 R1030 TFZGTR5.6B CN701 OPEN CBA UNIT CN3701 1 VCOM-PWM(NU) R733 2 BACKLIGHT-SW Q1005 Q1004 11.7 3 BACKLIGHT-ADJ 2SA1576UBTLQ KTC3875S R1628A IC1001 -Y-RTK/P T1604 D1008 (SWITCHING)
  • Page 36 Function Schematic Diagram C4054 R4052 R4063 TO DIGITAL MAIN 6.8K OPEN R4061 CN4001 CBA UNIT CN3101 OPEN R4062 1 AL+3.3V 2 P-ON+5V 3 LIGHT RS4051 GP1USC32XP 4 LED1 D4051 (REMOTE SENSOR) R4055 R4059 SML813WBC8W1 OPEN OPEN 5 REMOTE IC4051 POWER PH5502B2NA1-E4 6 KEY-IN1 (LIGHT SENSOR)
  • Page 37 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. DIGITAL MAIN CBA UNIT R3081 D3008...
  • Page 38 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 39 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 IC3005(3/6) OPEN...
  • Page 40 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. R3218 OPEN CONTINUE...
  • Page 41 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 R5124...
  • Page 42 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 HDMI- DIGITAL 4...
  • 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. CAUTION ! Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. Also, in order to have the ability to increase the input slowly, If Main Fuse (F601) is blown , check to see that all components in the power supply CAUTION ! :...
  • Page 44 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 45 Function CBA Top View R4011 R4012 R4014 C4055 C4006 NO.12 R4063 TP4061 R4054 R4061 R4010 R4052 R4013 R4002 TP4062 C4002 TP4060 R4062 C4053 R4004 C4054 R4006 R4058 D4053 C4001 A30C5 C7A3 CN4001 R4007 R4051 D4051 R4005 POWER CH + CH - SOURCE MENU VOL +...

  • Page 46: Wiring Diagram

    WIRING DIAGRM A21UZWI 12-1...

  • Page 47: Exploded Views

    EXPLODED VIEWS B17-1 B17-1 Power Supply CBA CL3013 CL1001 B14-2 Digital Main CBA Unit B14-1 SP3802 Function CBA CL3701 CL3801 SP3801 CL3101 LCD1 B17-2 CL601 B17-2 See Electrical Parts List for parts with this mark. SSK1 SSK1 13-1 A21UZ_CEX...
  • Page 48 Packing SSK1 AC601 Tape Packing Tape PP Band F R O Some Ref. Numbers are not in sequence. 13-2 A21UZ_PEX...

  • Page 49: Parts List

    PARTS LIST Mechanical Parts PRODUCT SAFETY NOTE: Products marked with a Ref. No. Description Part No. # have special characteristics important to safety. SERIAL NO. LABEL A17FZUH ---------- Before replacing any of these components, read PAD(680X280X25) A21UAUH 1EM438337 carefully the product safety notice in this service ACCESSORIES manual.
  • Page 50 Electrical Parts PRODUCT SAFETY NOTE: Products marked with a Ref. No. Description Part No. # have special characteristics important to safety. C1012 CHIP CERAMIC CAP .(1608) B K 2.2µF/10V CHD1AK30B225 Before replacing any of these components, read C1013 CHIP CERAMIC CAP . CH J 330pF/50V CHD1JJ3CH331 carefully the product safety notice in this service C1014...
  • Page 51 Ref. No. Description Part No. Ref. No. Description Part No. RES CHIP 3216 1/4W J 330k Ω D713 WIRE CP STP-S-0.50 XZ40F0REN001 R608 RRX4334HH034 RES CHIP 3216 1/4W J 330k Ω D714A DIODE SWITCHING HSC119 TRF -E QD1Z00HSC119 R609 RRX4334HH034 RES CHIP 3216 1/4W J 330k Ω...
  • Page 52 Ref. No. Description Part No. Ref. No. Description Part No. RES CHIP 1608 1/10W J 1.0k Ω R1030 RRXA102HH013 JS712 WIRE CP STP-S-0.50 XZ40F0REN001 RES CHIP 1608 1/10W F 47.0k Ω R1031 RTW4702HH008 SCREW B-TIGHT D3X8 BIND HEAD+ GBJB3080 RES CHIP 1608 1/10W 0 Ω R1032 RRXA000HH014 RL601#...

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