Color Television Chassis LC8.1U LA MG8 ME8 H_17740_000.eps 240408 Contents Page 1. Technical Specifications, Connections, and Chassis Overview 2 2. Safety Instructions, Warnings, and Notes 6 3. Directions for Use 7 4. Mechanical Instructions 8 5. Service Modes, Error Codes, and Fault Finding 20 6.
EN 2 1. Technical Specifications, Connections, and Chassis Overview LC8.1U LA 1. Technical Specifications, Connections, and Chassis Overview Index of this chapter: 1.1 Technical Specifications 1.2 Connection Overview 1.3 Chassis Overview 1.1.3 Notes: • Figures can deviate due to the different set executions. • Specifications are indicative (subject to change). 1.1 Technical Specifications 1.1.1 Vision Display type Screen size Resolution (H × V pixels) Dyn.
Technical Specifications, Connections, and Chassis Overview 1.2 Connection Overview LC8.1U LA 1. EN 3 USB2.0 (16) 1 2 3 4 TV ANTENNA 2 1 3 4 R R R L L L Pr Pr Pb 5 SPDIF OUT 11 AUDIO 6 VIDEO Y AV 1 12 SERV. U L R AV 2 AV 3 HDMI 2 8 L 14 HDMI 4 15 USB 16 9 I_17741_001.eps 230408 Figure 1-1 Side and rear I/O connections Note: The following connector color abbreviations are used (acc.
EN 4 1.3 1. LC8.1U LA Technical Specifications, Connections, and Chassis Overview Chassis Overview A MAIN SUPPLY PANEL E KEYBOARD & CONTROL PANEL J IR & LED PANEL SMALL SIGNAL BOARD B I_17741_016.eps 280108 Figure 1-4 PWB/CBA locations 32" models A MAIN SUPPLY PANEL E KEYBOARD & CONTROL PANEL SMALL SIGNAL BOARD B H_17650_083.eps 160108 J IR & LED PANEL H_17740_041.
Technical Specifications, Connections, and Chassis Overview A MAIN SUPPLY PANEL E KEYBOARD & CONTROL PANEL J IR & LED PANEL LC8.1U LA 1. EN 5 SMALL SIGNAL BOARD B I_17741_017.eps 280108 Figure 1-6 PWB/CBA locations 47" models A MAIN SUPPLY PANEL E KEYBOARD & CONTROL PANEL J IR & LED PANEL SMALL SIGNAL BOARD B I_17741_018.
EN 6 2. LC8.1U LA Safety Instructions, Warnings, and Notes 2. Safety Instructions, Warnings, and Notes Index of this chapter: 2.1 Safety Instructions 2.2 Warnings 2.3 Notes 2.1 • Safety Instructions Safety regulations require the following during a repair: • Connect the set to the Mains/AC Power via an isolation transformer (> 800 VA). • Replace safety components, indicated by the symbol h, only by components identical to the original ones.
Directions for Use 2.3.5 LC8.1U LA 3. EN 7 Alternative BOM identification MODEL The third digit in the serial number (example: AG2B0335000001) indicates the number of the alternative B.O.M. (Bill Of Materials) that has been used for producing the specific TV set. In general, it is possible that the same TV model on the market is produced with e.g. two different types of displays, coming from two different suppliers. This will then result in sets which have the same CTN (Commercial Type Number; e.g.
EN 8 4. LC8.1U LA Mechanical Instructions 4. Mechanical Instructions Index of this chapter: 4.1 Cable Dressing 4.2 Service Positions 4.3 Assy/Panel Removal ME8 Styling 4.4 Set Re-assembly 4.1 Notes: • Figures below can deviate slightly from the actual situation, due to the different set executions. • Follow the disassemble instructions in described order. • Please pay special attention to the speaker wires when reassembling the set. Place the cable tapes as shown in next figures.
Mechanical Instructions LC8.1U LA 4. EN 9 CONNECTOR WITH LOCK INSERTED TO PSU CONNECTOR WITHOUT LOCK INSERTED TO PANEL AC Mains Shield wire to be grounded to bottom corner of PSU with screw Detailed view of speaker cable dressing: Pull cable taut underneath SSB Plate before I_17741_008.
EN 10 4. LC8.1U LA Mechanical Instructions Tape tweeter wire to metal frame (both ends) to keep away from tweeter terminal I_17741_010.eps 240408 Figure 4-3 Cable dressing (42" models, ME8 styling) I_17741_011.
Mechanical Instructions LC8.1U LA 4. EN 11 Tape the 8C02 cable (IR Board to SSB) and the short red tweeter wire together. I_17741_013.
EN 12 4. LC8.1U LA Mechanical Instructions I_17741_012.
Mechanical Instructions LC8.1U LA 4. EN 13 Tape inverter cable so it stays in-between the LCD Panel lamp holders as shown to avoid EMC Foam on SSB Bars. NOTE: For inverter cables, the connector with ferrite is to be inserted at the PSU side Note orientation of wire saddle – the IR and Speaker Cables must not be parallel with AC Mains cable Tape speaker wires to prevent interference with speaker terminal I_17741_014.
EN 14 4. LC8.1U LA Mechanical Instructions Tape inverter cable so it stays in-between the LCD Panel lamp holders as shown to avoid EMC Foam on SSB Bars. NOTE: For inverter cables, the connector with ferrite is to be inserted at the PSU side Note horizontal orientation of wire saddle – the IR and Speaker Cables must cross the AC Mains Cable with “X” shape and not lay in parallel I_17741_015.
Mechanical Instructions 4.2 4.2.1 LC8.1U LA 4. Service Positions 4.3 Assy/Panel Removal ME8 Styling For easy servicing of this set, there are a few possibilities created: • The buffers from the packaging. • Foam bars (created for Service). 4.3.1 Back Cover Foam Bars 1 1 Required for sets 42" EN 15 Warning: Disconnect the mains power cord before you remove the back cover. Note: it is not necessary to remove the stand while removing the back cover.
EN 16 4. Mechanical Instructions LC8.1U LA 2 2 2 2 2 2 2 2 2 1 1 2 2 2 2 2 2 2 2 2 2 H_17740_024.eps 230108 Figure 4-11 Back Cover Removal [2/2] 4.3.2 Ambilight (if present) 4.3.3 Refer to next figure for details. 1. Unplug the connectors [1]. 2. Remove the screws [2]. 3. Pull the unit sidewards from the back cover. When defective, replace the whole unit. 2 1 H_17650_097.eps 180108 Figure 4-12 Ambilight Unit Loudspeaker (MG8 styling only) 1. Unplug the connectors. 2.
Mechanical Instructions 4.3.4 Woofers (ME8 styling only) 4.3.7 Refer to next figure for details. 1. Remove the screws [1] and [2] and lift the whole unit from the back cover. Take the speakers out together with their casing. When defective, replace the whole unit. LC8.1U LA 4. EN 17 Key Board Refer to next figure for details. 1. Unplug the key board connector from the IR & LED board. 2. Remove the screws [1]. 3. Lift the unit and take it out of the set. When defective, replace the whole unit.
EN 18 LC8.1U LA Mechanical Instructions Small Signal Board (SSB) 2. Unplug the connectors [2]. 3. Remove the screws [3]. 4. The SSB can now be taken out of the set, together with the front shield and the side cover. 5. To remove the shield, remove the screws [4] and lift it of while releasing clips [5]. 6. Release clip [6] and slide the cover sidewards from the SSB. Refer to below figure for details. Caution: it is mandatory to remount all different screws at their original position during re-assembly.
Mechanical Instructions LC8.1U LA 4. EN 19 4.3.10 LCD Panel Refer to next figures for details. The figure used is from a 42inch model, but the other screensizes have similar constructions. 1. Remove the stand. 2. Unplug the LVDS connector(s) [1]. Caution: be careful, as this is a very fragile connector! 3. Unplug the connectors [2]. 4. Remove the fixation screws [3] from rim. 5. Take the rim from the set. 6. Remove the fixation screws [4] and [5]. 7. Lift the subframe from the set. 8.
EN 20 5. LC8.1U LA Service Modes, Error Codes, and Fault Finding 5. Service Modes, Error Codes, and Fault Finding Index of this chapter: 5.1 Test Points 5.2 Service Modes 5.3 Service Tools 5.4 Error Codes 5.5 The Blinking LED Procedure 5.6 Fault Finding and Repair Tips 5.7 Software Upgrading Test Points In the chassis schematics and layout overviews, the test points are mentioned. In the schematics, test points are indicated with “Fxxx” or “Ixxx”, in the layout overviews with a “half-moon” sign.
Service Modes, Error Codes, and Fault Finding 5.2.2 Service Default Mode (SDM) Purpose Set the TV in SDM mode in order to be able to: • Create a pre-defined setting for measurements to be made. • Override software protections. • Start the blinking LED procedure. • Read the error buffer. • Check the life timer. LC8.1U LA 5.
EN 22 5.2.3 5. LC8.1U LA Service Modes, Error Codes, and Fault Finding Service Alignment Mode (SAM) Purpose • To change option settings. • To display / clear the error code buffer. • To perform alignments. Specifications • Operation hours counter (maximum five digits displayed). • Software version, error codes, and option settings display. • Error buffer clearing. • Option settings. • Software alignments (White Tone). • NVM Editor. • Set screen mode to full screen (all content is visible).
Service Modes, Error Codes, and Fault Finding 5.2.4 Customer Service Mode (CSM) Purpose The Customer Service Mode shows error codes and information on the TV’s operation settings. A call centre can instruct the customer (by telephone) to enter CSM in order to identify the status of the set. This helps them to diagnose problems and failures in the TV before making a service call. The CSM is a read-only mode; therefore, modifications are not possible in this mode.
EN 24 5. Service Modes, Error Codes, and Fault Finding LC8.1U LA 5.3 Service Tools 5.4 Error Codes 5.3.1 ComPair 5.4.1 Introduction Introduction ComPair (Computer Aided Repair) is a Service tool for Philips Consumer Electronics products. and offers the following: 1. ComPair helps you to quickly get an understanding on how to repair the chassis in a short and effective way. 2. ComPair allows very detailed diagnostics and is therefore capable of accurately indicating problem areas.
Service Modes, Error Codes, and Fault Finding 5.4.3 5.4.4 LC8.1U LA Error Codes 5.5 The Blinking LED Procedure In case of non-intermittent faults, write down the errors present in the error buffer and clear the error buffer before you begin the repair. This ensures that old error codes are no longer present. If possible, check the entire contents of the error buffer.
EN 26 5.6 5. LC8.1U LA Service Modes, Error Codes, and Fault Finding Fault Finding and Repair Tips Table 5-2 NVM editor overview Notes: • It is assumed that the components are mounted correctly with correct values and no bad solder joints. • Before any fault finding actions, check if the correct options are set. 5.6.4 5.6.
Service Modes, Error Codes, and Fault Finding 5.6.6 Start-up/Shut-down Flowcharts On the next pages you will find start-up and shut-down flowcharts, which might be helpful during fault finding. POWER STATES In this chassis, there are six possible power states as follows: • Power OFF • ON • STANDBY • SEMI-STANDBY • Special Panel Mode • PROTECTION 5. EN 27 PROTECTION This state is entered when an error has been detected at startup or in the “ACTIVE” mode.
EN 28 5. LC8.1U LA Service Modes, Error Codes, and Fault Finding H_17740_034.
Service Modes, Error Codes, and Fault Finding LC8.1U LA 5.
EN 30 5. Service Modes, Error Codes, and Fault Finding LC8.1U LA POWERDOWN SEQUENCE The following figure shows the power-down sequence flowchart: START POWER_DOWN INT based on falling edge trigger MT5382 Detects POWER_DOWN INT Reconfirm POWER_DOWN = LOW? Yes Mute Audio Output No Write Protect Flash and System EEPROM Wait for impending Power Off Note: To Avoid False Triggering System Idle END H_17740_036.
Service Modes, Error Codes, and Fault Finding 5.7 Software Upgrading 5.7.1 Introduction Automatic Software Upgrade In “normal” conditions, so when there is no major problem with the TV, the main software and the default software upgrade LC08SSp User software upgrade flow chart Power off the set A newer version of software is detected. Do you want to upgrade? NO layout 1 Plug-in the USB stick An equal/older version of software is detected.
EN 32 5.7.3 5. LC8.1U LA Service Modes, Error Codes, and Fault Finding Content and Usage of the One-Zip Software File Below you find a content explanation of the One-Zip file, and instructions on how and when to use it. • • • • • 5.7.4 Ambi_clustername_version.zip. Not to be used by Service technicians. Panel_clustername_version.zip. Not to be used by Service technicians. EDID_clustername_version.zip. Contains the EDID content of the different EDID NVMs. See ComPair for further instructions.
Block Diagrams, Test Point Overview, and Waveforms LC8.1U LA 6. 33 6. Block Diagrams, Test Point Overview, and Waveforms Wiring Diagram 32" (ME8/MG8) WIRING 32" (STYLING ME8/MG8) LCD DISPLAY (1004) LVDS INPUT 30P INVERTER B 14P 8418 CN2 / 1319 14. PDIM_Select 13. PWM 12. On/Off 11. Vbri 10. GND3 9. GND3 8. GND3 7. GND3 6. GND3 5. 24Vinv 4. 24Vinv 3. 24Vinv 2. 24Vinv 1. 24Vinv A (1005) F123 F124 CN6 / 1M95 1. 3V3Vstdby 2. Standby 3. GND1 4. GND1 5. GND1 6. +12V 7. +12V 8. +12V 9.
Block Diagrams, Test Point Overview, and Waveforms LC8.1U LA 6. 34 Wiring Diagram 42" & 47" (ME8/MG8) WIRING DIAGRAM 42”- 47” (STYLING ME8/MG8) 8K05 8K04 LVDS INPUT 41/51P *AMBI-LIGHT UNIT (IN BACK COVER) 8K01 8D01 8D02 GND +24V GND +24V 1D01 (B4D) 41P 1K01 (B6K) 7. GND 6. +3V3_SW 5. +3V3_FPGA 4. GND 3. AMBI_SDA 2. GND 1. AMBI_SCL 8K03 1K04 (B6K) 4. GND_24V 3. +24V_BOLT-ON 2. GND_24V 1. +24V_BOLT-ON B SSB (1150) 1K03 (B6K) 6. GND_24V 5. +24V_BOLT-ON 4. GND_24V 3. +24V_BOLT-ON 2. GND_24V 1.
Block Diagrams, Test Point Overview, and Waveforms LC8.1U LA 6. 35 Wiring Diagram 52" (ME8/MG8) WIRING 52" (STYLING ME8/MG8) LCD DISPLAY (1004) LVDS INPUT 41/51P 8D01 8D02 INVERTER 8D03 Only for 100/120Hz 1D03 (B4D) 51P 1D02 (B4D) 41P 1D01 (B4D) 41P INVERTER CN2 / 1319 CN6 / 1M95 A 1. 3V3 stdby 2. Standby 3. GND1 4. GND1 5. GND1 6. +12V 7. +12V 8. +12V 9. +12V (audio) 10. GND2 (audio) 11. -12V (audio) MAIN POWER SUPPLY (1005) CN3 / 1316 8419 B SSB (1150) CN7 / 1M99 12. N.C. 11. N.C.
Block Diagrams, Test Point Overview, and Waveforms LC8.1U LA 6. 36 Block Diagram Video VIDEO B2 B4 TUNER & DEMODULATOR B5R MT5382 B4D MJC MT8280 - LVDS MT5382 - LVDS 7A01 MT5382 1203 TDQU8-T01A IFAGC 4MHZ-REFOUT IF _AGC_MAIN 9 LVDS_B_TXe 4 6 +5VS 7201 TDA9886T/V4 HYBRID TUNER 1204 A-IFOUT 1D01 1 B4A TUNER B26 IF_AGC AIF 8 SUPPLY 1 VIF1 5 1 2 VIF2 4 TO DISPLAY LVDS_B_TXo 20 32 15 REF RC VCO DIDITAL VCO COTROL VIF-PLL SOUND TRAPS 4.5 to 6.
Block Diagrams, Test Point Overview, and Waveforms LC8.1U LA 6. 37 Block Diagram Audio AUDIO B2 B4 TUNER & DEMODULATOR B4B MT5382 - DDR2 SDRAM MT5382 7A01 MT5382 1203 TDQU8-T01A 4MHZ-REFOUT +5VS 7201 TDA9886T/V4 HYBRID TUNER 1204 A-IFOUT B4A TUNER B26 IF_AGC IF _AGC_MAIN 9 6 AIF 8 5 1 VIF1 4 2 VIF2 20 SUPPLY 1 15 REF RC VCO DIDITAL VCO COTROL VIF-PLL SOUND TRAPS 4.5 to 6.
Block Diagrams, Test Point Overview, and Waveforms LC8.1U LA 6. 38 Block Diagram Control & Clock Signals CONTROL + CLOCK SIGNALS B6K FPGA - AMBILIGHT 7P01 MT8280 B5R POWER 7K01 MT8280 LVDS_TXoCLKp LVDS_TXoCLKn AB11 AA11 B4 RESERVED TO 1D01 B4D LVDS CONN.
Block Diagrams, Test Point Overview, and Waveforms LC8.1U LA 6. 39 SSB: Test Points (Bottom Side) 3139 123 6359.2 H_17740_018.
Block Diagrams, Test Point Overview, and Waveforms LC8.1U LA 6.
Block Diagrams, Test Point Overview, and Waveforms LC8.1U LA 6. 41 Supply Lines Overview SUPPLY LINES OVERVIEW B1 A B4E DC/DC CONVERTER B2 12Vssb 12Vssb GND GND INV-ON MAIN POWER SUPPLY DIM CN7 1 1102 1 2 2 3 3 +12VS +12Vdisp 5109 7112 VOLT. REG.
Circuit Diagrams and PWB Layouts LC8.1U LA 7. 42 7.
Circuit Diagrams and PWB Layouts SSB: Tuner & Demodulator 1 2 B2 3 LC8.1U LA 4 7.
Circuit Diagrams and PWB Layouts LC8.1U LA 7.
Circuit Diagrams and PWB Layouts LC8.1U LA 7.
Circuit Diagrams and PWB Layouts SSB: MT5382-DDR2 SDRAM 1 2 3 LC8.
Circuit Diagrams and PWB Layouts LC8.1U LA 7.
Circuit Diagrams and PWB Layouts LC8.1U LA 7.
Circuit Diagrams and PWB Layouts LC8.1U LA 7.
Circuit Diagrams and PWB Layouts LC8.1U LA 7.
Circuit Diagrams and PWB Layouts LC8.1U LA 7.
Circuit Diagrams and PWB Layouts SSB: MJC MT8280-DDR2 1 2 3 LC8.1U LA 4 7.
Circuit Diagrams and PWB Layouts LC8.1U LA 7.
Circuit Diagrams and PWB Layouts LC8.1U LA 7.
Circuit Diagrams and PWB Layouts LC8.1U LA 7.
Circuit Diagrams and PWB Layouts LC8.1U LA 7. 56 SSB: ITV-Pro:Idiom (Reserved) 1 9 10 11 12 13 EP2C5F256C7N 10u 100n 100n 100n 100n 100n 100n 100n 100n 100n 100n 100n 100n 100n 100n A3 A7 A10 A14 C1 C16 F7 F10 G6 G8 G10 H7 H9 J8 J10 K7 K9 K11 L7 L10 P1 P16 T3 T7 T10 T14 GND 3.
Circuit Diagrams and PWB Layouts LC8.1U LA 7.
Circuit Diagrams and PWB Layouts LC8.1U LA 7.
Circuit Diagrams and PWB Layouts LC8.1U LA 7.
Circuit Diagrams and PWB Layouts LC8.1U LA 7. 60 Layout Small Signal Board (Part 1 Top Side) Part 1 H_17740_016a.
Circuit Diagrams and PWB Layouts LC8.1U LA 7. 61 Layout Small Signal Board (Part 2 Top Side) Part 2 H_17740_016b.
Circuit Diagrams and PWB Layouts LC8.1U LA 7. 62 Layout Small Signal Board (Part 3 Top Side) Part 3 H_17740_016c.
Circuit Diagrams and PWB Layouts LC8.1U LA 7. 63 Layout Small Signal Board (Part 4 Top Side) Part 4 H_17740_016d.
Circuit Diagrams and PWB Layouts LC8.1U LA 7. 64 Layout Small Signal Board (Overview Bottom Side) Part 2 H_17740_017b.eps Part 1 H_17740_017a.eps Part 3 H_17740_017c.eps 3139 123 6359.2 Part 4 H_17740_017d.eps H_17740_017.
Circuit Diagrams and PWB Layouts LC8.1U LA 7.
Circuit Diagrams and PWB Layouts LC8.1U LA 7. 66 Layout Small Signal Board (Part 2 Bottom Side) Part 2 H_17740_017b.
Circuit Diagrams and PWB Layouts LC8.1U LA 7.
Circuit Diagrams and PWB Layouts LC8.1U LA 7. 68 Layout Small Signal Board (Part 4 Bottom Side) Part 4 H_17740_017d.
Circuit Diagrams and PWB Layouts LC8.1U LA 7. 69 Keyboard Control Panel E 3139 128 7976.1 Keyboard Control Panel E I_17441_001.eps 240408 E 3139 138 7009.1 E I_17441_003.
Circuit Diagrams and PWB Layouts LC8.1U LA 7. 70 Layout Keyboard Control Panel 3139 128 7976.1 I_17441_002.
Circuit Diagrams and PWB Layouts LC8.1U LA 7. 71 Layout Keyboard Control Panel 3139 138 7009.1 I_17441_004.
Circuit Diagrams and PWB Layouts LC8.1U LA 7.
Circuit Diagrams and PWB Layouts LC8.1U LA 7. 73 Layout IR & LED Panel (Top Side) 2P10 2P11 3P07 3P08 A4 A6 A4 A4 3P09 3P10 3P11 3P12 A6 A3 A2 A6 3P13 3P14 3P15 3P16 A6 A2 A2 A4 3P17 3P18 3P19 3P20 A5 A6 A4 A6 3P21 3P22 3P23 3P24 A6 A6 A4 A6 3P25 3P26 3P27 3P28 A6 A6 A2 A3 4P01 4P02 6P10 6P11 A2 A2 A3 A3 6P12 7P10 7P11 7P12 A5 A2 A2 A5 7P13 A6 7P14 A4 Personal Notes: H_17650_054.eps 140108 3139 123 6327.3 Layout IR & LED Panel (Bottom Side) 1P09 A4 1P10 A5 3139 123 6327.
Circuit Diagrams and PWB Layouts LC8.1U LA 7. 74 Personal Notes: E_06532_013.
Alignments LC8.1U LA 8. EN 75 8. Alignments Index of this chapter: 8.1 General Alignment Conditions 8.2 Hardware Alignments 8.3 Software Alignments 8.4 Option Settings Note: Figures below can deviate slightly from the actual situation, due to the different set executions. General: The Service Default Mode (SDM) and Service Alignment Mode (SAM) are described in chapter 5. Menu navigation is done with the CURSOR UP, DOWN, LEFT or RIGHT keys of the remote control transmitter. 8.
EN 76 8. LC8.1U LA 8.4 Option Settings 8.4.1 Introduction Alignments The microprocessor communicates with a large number of I2C ICs in the set. To ensure good communication and to make digital diagnosis possible, the microprocessor has to know which ICs to address. The presence/absence of these specific ICs (or functions) is made known by the option codes. Notes: • After changing the option(s), save them with the “Store” command.
Alignments LC8.1U LA 8. Option Bit Overview Below find an overview of the Option Codes on bit level. Table 8-4 Option codes at bit level (OP1-OP4) Option Byte & Bit Dec. Value Option Name Description Bit 7 (MSB) 128 OPC_MT8280 ON = MT8280 is available OFF = MT8280 is not available, i.e.
EN 78 8. LC8.1U LA Alignments Table 8-5 Option codes at bit level (OP5-OPA) Option Byte & Bit Dec.
Circuit Descriptions, Abbreviation List, and IC Data Sheets LC8.1U LA 9. EN 79 9. Circuit Descriptions, Abbreviation List, and IC Data Sheets Index of this chapter: 9.1 Introduction 9.2 LCD Power Supply 9.3 DC/DC converters 9.4 Front-End 9.5 Video Processing 9.6 Audio Processing 9.7 HDMI 9.10 Abbreviation List 9.11 IC Data Sheets Some key components are: • Main processor (MT5382): audio/video processing. • Motion estimation/compensation engine (MT8280) (in some sets).
EN 80 9.1.3 9. Circuit Descriptions, Abbreviation List, and IC Data Sheets LC8.1U LA SSB Cell Layout SAW HYBRID TUNER DOUBLE FRAME RATE FPGA AMBI LIGHT iTV CHANNEL DECODER FOR FUTURE USE MPEG2 DECODER/ ENCODER FLASH MEMORY DC - DC CONVERSION DDR MAIN VIDEO/ AUDIO PROCESSING HDMI DEMULTI PLEXER AUDIO CLASS - D H_17740_045.eps 250108 Figure 9-2 SSB top view 9.2 LCD Power Supply The Power Supply Unit (PSU) in this chassis is a buy-in and is a black-box for Service.
Circuit Descriptions, Abbreviation List, and IC Data Sheets 9.4 +3V3-Standby +3V3STBY +12VSND +12VAudio -12VSND -12VAudio +12V (TCON) +VDISP L5973D (provision) +12V L78M05DCT (provision) +5Vtuner +5V_SW DC-DC NCP5422ADR26 +3V3_SW BD25KA5WFP-E2 +2V5 +1V1_SW DC-DC NCP5422ADR26 LC8.1U LA 9. EN 81 Front-End All sets in this chassis use the “Alps TDQU” hybrid tuner. Refer to diagram B2 for details.
EN 82 9.5 9. LC8.1U LA Circuit Descriptions, Abbreviation List, and IC Data Sheets Video Processing Both audio and video signals are processed by the MT5382 audio/video processor. Refer to diagram B4 for details. In basic sets (sets without DNM/AmbiLight), the video signal is fed directly to the panel via an LVDS connector. Refer to figure “Video processing - basic sets” for details. H_17740_048.
Circuit Descriptions, Abbreviation List, and IC Data Sheets 9.6 Audio Processing Both audio and video signals are processed by the MT5382 audio/video processor. Refer to diagram B4 for details. LC8.1U LA 9. EN 83 For the audio processing inside the audio/video processor, refer to figure “Functional blocks audio processing MT5382 audio/video processor” for details. H_17740_050.
EN 84 9.7 9. Circuit Descriptions, Abbreviation List, and IC Data Sheets LC8.1U LA HDMI The MT5382 audio/video processor has three built-in HDMI receivers. An external HDMI switch (SIL 9185) has been added to support a 4th HDMI connector. The HDMI implementation supports CEC. The standby controller WT61P7 ensures CEC is also supported when set is in standby mode. Refer to figure “HDMI implementation” for details. H_17740_052.
Circuit Descriptions, Abbreviation List, and IC Data Sheets 9.9 LC8.1U LA 9. EN 85 Control Signal Description The following diagram gives an overview of the control signal flow for the LC08SP platform. H_17740_054.
EN 86 9. LC8.
Circuit Descriptions, Abbreviation List, and IC Data Sheets LED2 The LED2 control signal controls the secondary LED, and is controlled by the Standby Controller. Similar, a low signal turns on the LED, while a high signal turns off the LED. The LED blinks in protection mode. ANA-DIG_AUDIO_SELECT (RESERVED) The ANA-DIG_AUDIO_SELECT signal is used as a gain selector for audio pre-amplifier. The purpose is to halve the gain in the case of digital inputs, which includes HDMI and digital TV inputs.
EN 88 9. LC8.1U LA Circuit Descriptions, Abbreviation List, and IC Data Sheets EDID_WE The EDID_WE signal is the WE signal for the HDMI EEPROM ICs. The signal is connected to the active low Write Control pin of the EEPROM via a transistor inverter. This signal is only used for the programming of EDID EEPROMs via MT5382. It is not used during normal operation mode. HDMI_HPD_1 The HDMI_HPD_1 signal is used for resetting the HDMI source connected to HDMI1 during the hot plug process.
Circuit Descriptions, Abbreviation List, and IC Data Sheets 9.
EN 90 9. MPEG MSP MUTE NAFTA NC NICAM NTSC NVM O/C ON/OFF LED OAD OSD PAL PC PCB PDP PIG PIP PLL PSU PWB RAM RC RC5 (6) RF RGB RGBHV ROM SAM SC SC1-OUT SC2-OUT S/C SCL SD SDA SDI SDM SDRAM SECAM SIF SMPS SND SOPS S/PDIF SRAM SSB LC8.
Circuit Descriptions, Abbreviation List, and IC Data Sheets LC8.1U LA 9. EN 91 9.11 IC Data Sheets This section shows the internal block diagrams and pin layouts of ICs that are drawn as "black boxes" in the electrical diagrams (with the exception of "memory" and "logic" ICs). 9.11.
EN 92 9. Circuit Descriptions, Abbreviation List, and IC Data Sheets LC8.1U LA 9.11.
Circuit Descriptions, Abbreviation List, and IC Data Sheets LC8.1U LA 9. 9.11.3 Diagram B4, Type MT5382 (IC7A01), Audio / Video Processor Block Diagram Pin Configuration MT5382 H_17740_055.
EN 94 9. LC8.1U LA Circuit Descriptions, Abbreviation List, and IC Data Sheets 9.11.4 Diagram B4E Type SIL9185 (IC7E18), HDMI Multiplexer Block Diagram H_17370_074.
Spare Parts List 10. Spare Parts List For the latest spare part overview, please consult the Philips Service website. 11. Revision List Manual xxxx xxx xxxx.0 • First release. Manual xxxx xxx xxxx.1 • All chapters: Added 32PFL3403D/85, 32PFL5403D/27, 32PFL5413D/85, 42MF438B/27, 42PFL3403D/27, 42PFL3603D/27, 42PFL5403D/85, 42TA648BX/37, 47PFL3603D/27, 47TA648BX/37, 52MF438B/27, 52PFL3603D/27, 52PFL5603D/27 • All chapters: Some textual improvements. • Chapter 1: Improved connection overview drawing.
