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Philips 32PFL4508 Service Manual

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Service Manual

32PFL4508/F7
This service manual contains information of different types of models.
Make sure to refer to the section describing your model.
© 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
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.
PHILIPS
(Serial No.: ME1)
design is a registered trademark of Funai Electric Co., Ltd and may not be used in any way
chassis PL13.9
Contents
32" LCD TV
121219

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  Summary of Contents for Philips 32PFL4508

  • Page 1: Service Manual

    32” LCD TV chassis PL13.9 Service Manual Contents 32PFL4508/F7 PHILIPS (Serial No.: ME1) This service manual contains information of different types of models. Make sure to refer to the section describing your model. © 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 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 1. Disassembly Flowchart Note: (1) Order of steps in procedure. When reassembling, This flowchart indicates the disassembly steps for the follow the steps in reverse order. These numbers cabinet parts and the CBA in order to gain access to are also used as the Identification (location) No.
  • Page 14: Decoration Plate

    • After reassembling the Front Cabinet or Function • Make sure to replace the Decoration Plate to a new CBA Unit, check the operational sensitivity of the one when replacing the Front Cabinet. touch sensor to make sure it functions normally. [2] Rear Cover (S-3) (S-2)
  • Page 15 Jack Holder [4] Digital Main CBA Unit (S-6) (S-5) [3] Power Supply CBA Fig. D2 [5] Speaker Shield Plate [5] Speaker [6] Function CBA Unit Leading Edge Cover (S-7) Fig. D3 : Make sure to read all the precautions on page 4-1 when you disassemble/re-assemble the Function CBA Unit.
  • Page 16 [9] Front Cabinet Decoration Plate (S-8) Hook Hook (S-8) Hook [8] X-PCB Cover Hook [7] LCD Panel Assembly (S-9) Fig. D4 : Make sure to read all the precautions on page 4-1 when you disassemble/re-assemble the LCD Panel Assembly (X-PCB Cover or Front Cabinet). PL13.9_DC...
  • Page 17 TV Cable Wiring Diagram To LCD Panel To LCD Panel Assembly Assembly Digital Main Power Supply CBA CBA Unit CN1001 CN3013 CN501 CN3701 CN601 CN3801 CN3101 To AC Cord Function CBA Unit To Speaker CN4001 Fig. D5 PL13.9_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: TVNB012_00_PF_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_PF_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. (D601, D602, D603, D604, Q601, Q602, T601) Is the P-ON+21V line voltage normal? FLOW CHART NO.2...
  • 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. PL13.9ATR...
  • Page 25 [Video Signal Section] FLOW CHART NO.1 The key operation is not functioning. Replace Function CBA Unit. Replace 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. Replace Function CBA Unit.
  • 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 Digital Main CBA Unit. PL13.9ATR...
  • Page 27: Block Diagrams

    BLOCK DIAGRAMS 1. System Control Block Diagram PL13.9BLS...
  • Page 28 2. Video/Audio Block Diagram PL13.9BLVA...
  • Page 29 3. Digital Signal Process Block Diagram PL13.9BLD...
  • Page 30 4. LED Backlight Drive Block Diagram PL13.9BLBD...
  • Page 31 5. Power Supply Block Diagram PL13.9BLP...
  • 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 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 POWER IC4051 6 KEY-IN1 OPEN 7 GND...
  • 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 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 43 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 44: Wiring Diagram

    WIRING DIAGRAM 11-1 PL13.9WI...
  • Page 45: Exploded Views

    EXPLODED VIEWS LCD1 CL3006 Digital Main CBA Unit CL3701 GP002 Function CBA Unit GP001 SP3802 CL3801 AC601 CL3101 SP3801 Power Supply CBA See Electrical Parts List for parts with this mark. SSK1 SBA1 12-1 FL13.9-A_CEX...
  • Page 46 Packing SSK1 Tape SBA1 Packing Tape Packing Tape F R O F R O Packing Tape Some Ref. Numbers are not in sequence. 12-2 PL13.9PEX...
  • Page 47 C666 CHIP CERAMIC CAP.(1608) B K 0.22UF/25V CHD1EK30B224 QUICK START GUIDE A31M2UT 1EMN30003 C1001 CAP ELE 330UF/25V/M/85 CED3310V8006 REGISTRATION CARD (PHILIPS) A2176UT 1EMN29339 C1002 CHIP CERAMIC CAP.(1608) B K 1UF/25V CHD1EK30B105 CABLE MANAGEMENT TIE(BLACK) A01F2UH 1EM431197 C1003 CHIP CERAMIC CAP.(1608) B K 1UF/25V...
  • Page 48 32PFL4508/F7(A31F2UT)(ME1) 32PFL4508/F7(A31F2UT)(ME1) D651 DIODE SCHOTTKY SB3150BH NDWZ00SB3150 R1001 RES CHIP 1608 1/10W J 360 OHM RRXA361HH013 D653 DIODE SCHOTTKY SB3A0BH NDWZ000SB3A0 R1002 RES CHIP 1608 1/10W J 360 OHM RRXA361HH013 D654! DIODE ZENER 1ZB20BB NDWZ0001ZB20 R1003 RES CHIP 1608 1/10W J 1.0K OHM...
  • Page 49: Revision History

    REVISION HISTORY Chassis PL13.9 • 2012/12/19 32PFL4508/F7 (Serial No.: ME1) 1st draft added 14-1 PL13.9REV...
  • Page 50 COMPARISON LIST OF MODEL NAMES Chassis PL13.9 32PFL4508/F7 (ME1) A31F2UT PL13.9COM...

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