Philips 32” LCD TV Service Manual
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Philips 32” LCD TV Service Manual

32” lcd tv
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Service Manual

32PFL4909/F7
32PFL4609/F7
32PFL4909/F8
This service manual contains information of different types of models.
Make sure to refer to the section describing your model.
© 2014 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)
PHILIPS
(Serial No.: ME1)
PHILIPS
(Serial No.: XA1)
design is a registered trademark of Funai Electric Co., Ltd and may not be used in any way
chassis PL14.12
Contents
32" LCD TV
140324

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Summary of Contents for Philips 32” LCD TV

  • Page 1: Service Manual

    32” LCD TV chassis PL14.12 Service Manual Contents 32PFL4909/F7 PHILIPS (Serial No.: ME1) 32PFL4609/F7 PHILIPS (Serial No.: ME1) 32PFL4909/F8 PHILIPS (Serial No.: XA1) This service manual contains information of different types of models. Make sure to refer to the section describing your model.

  • 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 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 1. Prepare the hot-air flat pack-IC desoldering Bottom View machine, then apply hot air to the Flat Pack-IC Input...
  • 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

    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 BIND BLACK_NI 4(S-5), CN3105, GBHP3120 5.2±0.9lb·in Digital Main +P-TITE M3X12.0 CN3801, CN3904, CBA Unit Jack Holder SCREW BIND 3CHROM L23 GBJS3060 4.3±0.9lb·in +S-TITE M3X6.0 Speaker...

  • Page 14: Function Knob

    Important precautions concerning the 2. When you disassemble/re-assemble the Function CBA Unit or the IR Sensor CBA Unit LCD Panel Assembly: • Be careful not to break the hooks. If you pull with too 1. When you disassemble/re-assemble the LCD much force, the hooks may be damaged.
  • Page 15 Jack Holder [4] Digital Main CBA Unit (S-5) (S-4) [3] Power Supply CBA Fig. D2 PL14.12-A_DC...
  • Page 16 [6] Stand Holder [8] IR Sensor CBA Unit * Sensor Shield (S-6) Hook [7] Function CBA Unit * Hook [5] Speaker (S-6) Function Knob Knob Frame Fig. D3 : Make sure to read all the precautions on page 4-2 when you disassemble/re-assemble the Function CBA Unit or IR Sensor CBA Unit.

  • Page 17: Decoration Plate

    [9] LCD Panel Assembly * Decoration Plate LED Lens Hook Leading Edge Cover Fig. D4 : Make sure to read all the precautions on page 4-2 when you disassemble/re-assemble the LCD Panel Assembly. PL14.12-A_DC...

  • Page 18: Wiring Diagram

    TV Cable Wiring Diagram To LCD Panel To LCD Panel Assembly Assembly Power Supply CBA Digital Main CBA Unit CN1001 CN3904 CN501 CN3601 Function CN601 CBA Unit CN3801 CN3105 To AC Cord To Speaker CN4051 IR Sensor CBA Unit CN4052 CN4001 Fig.

  • Page 19: 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 20: White Balance Adjustment

    The VCOM Adjustment should be The White Balance Adjustment should be performed when replacing the Digital performed when replacing the LCD Panel Main CBA. or Digital Main CBA. 2. VCOM Adjustment 3. White Balance Adjustment Test Point Adj. Point Purpose: To mix red and blue beams correctly for pure white.
  • Page 21 5. Press [3] button to select the “HDB” for High Drive 13. Press [9] button to select the “LDB” for Low Drive Blue adjustment. (“HDB” appears in the screen.) Blue adjustment (“LDB” appears in the screen.) and press [CHANNEL UP/DOWN] buttons to 6.

  • 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 Equipment Required Update file selection screen appears as follows. (Files included in the USB storage device are a. USB storage device displayed.) b. Remote Control Unit " * " differs depending on the models. Firmware Update Procedure Select an upgrade file *****_******.upg 1.

  • Page 24: 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, D607, D608, D609, D621, D623, Q601, Q602, Is the P-ON+21V line voltage normal?
  • Page 25 FLOW CHART NO.5 P-ON+21V is not output. Check D650, D651, D652, 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. PL14.12ATR...
  • Page 26 [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 27 [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. PL14.12ATR...

  • Page 28: Block Diagrams

    BLOCK DIAGRAMS 1. System Control Block Diagram PL14.12BLS...
  • Page 29 2. Video/Audio Block Diagram PL14.12BLVA...
  • Page 30 3. Digital Signal Process Block Diagram PL14.12BLD...
  • Page 31 4. LED Backlight Drive Block Diagram PL14.12BLBD...
  • Page 32 5. Power Supply Block Diagram PL14.12BLP...

  • Page 33: 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 34 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 35: Power Supply Schematic Diagram

    Power Supply Schematic Diagram NOTE: CAUTION ! The voltage for parts in hot circuit is measured using CAUTION ! : For continued protection against risk of fire, Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. hot GND as a common terminal.
  • Page 36 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 seven and shown as IC3101 (1/7) ~ IC3101 (7/7) in this Digital Main Schematic Diagram Section. CONTINUE (NO CONNECTION) CN3905...
  • Page 37 Digital Main 2 Schematic Diagram CONTINUE DIGITAL 7 P-ON+21V R3942 P-ON+3.3V CONTINUE R3952 D3905 DIGITAL 1 Q3905 OPEN OPEN OPEN LCD+12V/+21V C3996 OPEN D3906 OPEN IC3901 R3899 R3550 OPEN OPEN OPEN C3946 OPEN R3897 C3949 OPEN OPEN R3891 OPEN C3951 C3945 C3944 C3943...
  • Page 38 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 seven and shown as IC3101 (1/7) ~ IC3101 (7/7) in this Digital Main Schematic Diagram Section. IC3101(2/7) MN2WS0270HA DIGITAL MAIN CBA UNIT...
  • Page 39 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 seven and shown as IC3101 (1/7) ~ IC3101 (7/7) in this Digital Main Schematic Diagram Section. IC3101(3/7) MN2WS0270HA DIGITAL SIGNAL PROCESS...
  • Page 40 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 seven and shown as IC3101 (1/7) ~ IC3101 (7/7) in this Digital Main Schematic Diagram Section. CONTINUE DIGITAL 7 TU3001...
  • Page 41 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 seven and shown as IC3101 (1/7) ~ IC3101 (7/7) in this Digital Main Schematic Diagram Section. DIGITAL MAIN CBA UNIT IC3101(5/7) MN2WS0270HA...
  • Page 42 Digital Main 7 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3101. IC3101 is divided into seven and shown as IC3101 (1/7) ~ IC3101 (7/7) in this Digital Main Schematic Diagram Section. CONTINUE DIGITAL 1 P-ON+21V...
  • Page 43 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 seven and shown as IC3101 (1/7) ~ IC3101 (7/7) in this Digital Main Schematic Diagram Section. DIGITAL MAIN CBA UNIT R3144 CONTINUE...
  • Page 44 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 45: Ir Sensor Cba Unit

    IR Sensor Schematic Diagram C4054 R4060 R4053 RS4051 OPEN 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 46 Power Supply CBA Top 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 47 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 48: Wiring Diagram

    WIRING DIAGRAM 11-1 PL14.12WI...

  • Page 49: Exploded Views

    EXPLODED VIEWS LCD1 CL3006 Digital Main CBA Unit CL3701 CL3101 32PFL4909/F7, 32PFL4609/F7 CL3102 IR Sensor CBA Unit Function CBA Unit AC601 Power Supply CBA CL3801 SP3801 SP3802 See Electrical Parts List SSK1 for parts with this mark. 32PFL4609/F7 32PFL4909/F7, 32PFL4909/F8 SSK1 SBA1 12-1...
  • Page 50 Packing SSK1 32PFL4909/F7, 32PFL4609/F7 32PFL4909/F8 SBA1 32PFL4909/F7, Tape 32PFL4909/F8 Packing Tape PCB Label 32PFL4909/F8 Packing Tape Packing Tape Some Ref. Numbers are not in sequence. 12-2 PL14.12-A_PEX...

  • Page 51: Parts List

    PARTS LIST [32PFL4909/F7 (Serial No.: ME1)] 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 U44F4PA carefully the product safety notice in this service Consists of the following...

  • Page 52: Electrical Parts

    Electrical Parts PRODUCT SAFETY NOTE: Products marked with a POWER SUPPLY CBA # have special characteristics important to safety. Ref. No. Description Part No. Before replacing any of these components, read POWER SUPPLY CBA A4DFAMPW-001 carefully the product safety notice in this service Consists fo the following manual.
  • Page 53 Ref. No. Description Part No. Ref. No. Description Part No. D621 DIODE SWITCHING SMD 1SS400ST(SOD-523) ND1Z1SS400ST R667 RES CHIP 1608 1/10W J 8.2k RRXA822HH013 D623 ZENER DIODE MM5Z30B ND1B0MM5Z30B R668 RES CHIP 1608 1/10W J 47k RRXA473HH013 D650 DIODE SCHOTTKY SB3150BH NDWZ00SB3150 R669 RES CHIP 1608 1/10W J 10k...
  • Page 54 PARTS LIST [32PFL4609/F7 (Serial No.: ME1)] Mechanical Parts PRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. Before replacing any of these components, read carefully the product safety notice in this service manual. Don't degrade the safety of the product through improper servicing.
  • Page 55 Electrical Parts PRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. Before replacing any of these components, read carefully the product safety notice in this service manual. Don't degrade the safety of the product through improper servicing. NOTES: 1.
  • Page 56 PARTS LIST [32PFL4909/F8 (Serial No.: XA1)] Mechanical Parts PRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. Before replacing any of these components, read carefully the product safety notice in this service manual. Don't degrade the safety of the product through improper servicing.
  • Page 57 Electrical Parts PRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. Before replacing any of these components, read carefully the product safety notice in this service manual. Don't degrade the safety of the product through improper servicing. NOTES: 1.

  • Page 58: Revision History

    REVISION HISTORY Chassis PL14.12 • 2014/02/18 32PFL4909/F7 (Serial No.: ME1) added • 2014/03/04 32PFL4609/F7 (Serial No.: ME1) First draft added • 2014/03/24 32PFL4909/F8 (Serial No.: ME1) First draft added 14-1 PL14.12REV...
  • Page 59 COMPARISON LIST OF MODEL NAMES Chassis PL14.12 32PFL4909/F7 (ME1) A4DF2UT 32PFL4609/F7 (ME1) A4DFAUT 32PFL4909/F8 (XA1) A4DFBMA PL14.12COM...

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