All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. Published by EL 0665 BG CD Customer Service...
EN 2 EJ2.0U LA Technical Specifications, Connections, and Chassis Overview 1. Technical Specifications, Connections, and Chassis Overview Index of this chapter: : BTSC 1.1 Technical Specifications : Dolby Digital (AC3) 1.2 Connection Overview Maximum power (W : 2 x 8 1.3 Chassis Overview 1.1.3 Multimedia...
Page 3
Technical Specifications, Connections, and Chassis Overview EJ2.0U LA EN 3 1.2.1 Side Connections HDMI 1: Digital Video, Digital Audio - In Mini Jack: Audio Headphone - Out Bk - Headphone 32 - 600 ohm / 10 mW E_06532_017.eps 250505 Cinch: Video CVBS - In, Audio - In Figure 1-3 HDMI (type A) connector Ye - Video CVBS / 75 ohm...
Page 4
EN 4 EJ2.0U LA Technical Specifications, Connections, and Chassis Overview Chassis Overview STANDBY & AUDIO PANEL LCD SUPPLY PANEL SMALL SIGNAL BOARD CONTROL SIDE I/O BOARD PANEL IR / LED PANEL G_15940_042.eps 240506 Figure 1-4 PWB/CBA locations...
Safety Instructions, Warnings, and Notes EJ2.0U LA EN 5 2. Safety Instructions, Warnings, and Notes Index of this chapter: Service Default Mode (see chapter 5) with a color bar 2.1 Safety Instructions signal and stereo sound (L: 3 kHz, R: 1 kHz unless stated 2.2 Warnings otherwise) and picture carrier at 475.25 MHz for PAL, or 2.3 Notes...
Page 6
2.3.5 Alternative BOM identification Figure 2-1 Serial number example In September 2003, Philips CE introduced a change in the way Regardless of the special lead-free logo (which is not always the serial number (or production number, see Figure 2-1) is indicated), one must treat all sets from this date onwards composed.
Directions for Use EJ2.0U LA EN 7 3. Directions for Use You can download this information from the following websites: http://www.philips.com/support http://www.p4c.philips.com...
EN 8 EJ2.0U LA Mechanical Instructions 4. Mechanical Instructions Index of this chapter: Notes: 4.1 Cable Dressing • Several models in this chassis range have a different 4.2 Service Positions mechanical construction, the instructions given in this 4.3 Assy/Panel Removal chapter are therefore very model specific.
Page 9
Mechanical Instructions EJ2.0U LA EN 9 The new MkII aluminium stands (not on drawing) with order code 3122 785 90690, can also be used to do measurements, alignments, and duration tests. The stands can be (dis)mounted quick and easy by means of sliding them in/out the "mushrooms".
Page 10
EN 10 EJ2.0U LA Mechanical Instructions Caution: never disconnect the speakers with a playing set, because otherwise the class-D audio amplifiers could be damaged! 4.3.6 Stand-by Power Supply/Audio Amplifier Panel 1. Disconnect all connectors [1] from the panel. 2. Remove the fixation screws [2] from the panel. 3.
Page 11
Mechanical Instructions EJ2.0U LA EN 11 4.3.8 Small Signal Board (SSB) G_16290_072.eps 310106 Figure 4-12 SSB bottom shielding 1. Remove the connector fixation screws [1] at the connector plate (bottom side, see Figure “SSB bottom shielding”). 2. Unplug the LVDS connector [1] on the SSB (SSB top side, see Figure “SSB top view”).
Page 12
EN 12 EJ2.0U LA Mechanical Instructions G_15940_059.eps 260506 Figure 4-17 LCD panel removal To remove the LCD-panel, carry out the following steps: 1. Remove screws [1]. 2. Remove brackets [2]. 3. Important: Unplug the LVDS connector [3] on the LCD panel.
Service Modes, Error Codes, and Fault Finding EJ2.0U LA EN 13 5. Service Modes, Error Codes, and Fault Finding Index of this chapter: in the channel map and could be different from the one 5.1 Test Points corresponding to the physical channel 3. 5.2 Service Modes •...
Page 14
EN 14 EJ2.0U LA Service Modes, Error Codes, and Fault Finding • To view operation hours. Key in the code “062598” directly followed by the “MENU” • To display (or clear) the error code buffer. button and “XXX” (where XXX is the 3 digit decimal display option code as mentioned in the first column of the next table).
Page 15
Service Modes, Error Codes, and Fault Finding EJ2.0U LA EN 15 Contents of CSM Display Op- Technology Display Size Vertical Horizontal tion (Dec.) Make & Resolution Resolution • SW Version (example: EJ20U-1.2.3.4_12345). Displays Type the built-in main software version. In case of field problems LPL SLB1 42”...
Page 16
EN 16 EJ2.0U LA Service Modes, Error Codes, and Fault Finding 2FH 576P” or “RGB 2FH 1080I”. Audio signal quality: “STEREO”, “SPDIF 1”, “SPDIF 2”, or “SPDIF”. • Audio System. Gives information about the audible audio system. Possible values are “Stereo”, ”Mono”, “Mono selected”, “Analog In: No Dig.
Page 17
Service Modes, Error Codes, and Fault Finding EJ2.0U LA EN 17 by the transistors connected to the PWM outputs of the • SP: protection or error detected by the Stand-by microprocessor. Processor. • MP: protection or error detected by the VIPER Main Processor.
Page 18
EN 18 EJ2.0U LA Service Modes, Error Codes, and Fault Finding Stand by or Protection Mains is applied Standby Supply starts running. +5V2, 1V2Stb, 3V3Stb and +2V5D become present. In case of PDP 3V3 Vpr to CPU PDP becomes present. action holder: MIPS If the protection state was left by short circuiting the SDM pins, detection of a protection condition during...
Page 19
Service Modes, Error Codes, and Fault Finding EJ2.0U LA EN 19 From Part A From Part A From Part A From Part A detect-1V2 activate +8V6 supply received within +1.2V error +8V6 error detection algorithm 250ms? return Enable the DC/DC converters for +2.5V and +3.3V.
Page 20
EN 20 EJ2.0U LA Service Modes, Error Codes, and Fault Finding From Part A From Part B From Part B From Part B From Part B Code = 5 action holder: MIPS Viper SW initialization Switch Viper in reset Code = 53 succeeded action holder: St-by within 20s?
Page 21
Service Modes, Error Codes, and Fault Finding EJ2.0U LA EN 21 37" 1366*768 LCD SHARP Constraints taken into account: - Display may only be started when valid QVCP output clock can be delivered by the Viper. - Between 0 and 20 ms after power is supplied, display should receive valid lvds clock. - minimum wait time to switch on the lamp after power up is 200ms.
Page 22
EN 22 EJ2.0U LA Service Modes, Error Codes, and Fault Finding 37" 1366*768 LCD SHARP Active action holder: MIPS Mute all sound outputs. action holder: St-by autonomous action Switch reset-audio and sound-enable lines high switch off LCD lamp Mute all video outputs Wait 0ms.
Page 23
Service Modes, Error Codes, and Fault Finding EJ2.0U LA EN 23 Semi Stand by action holder: MIPS action holder: St-by Delay transition until ramping down of ambient light is autonomous action finished. *) Switch ambient light to passive mode with RGB values on zero.
Page 24
EN 24 EJ2.0U LA Service Modes, Error Codes, and Fault Finding action holder: MIPS Log the appropriate error and action holder: St-by set stand-by flag in NVM autonomous action redefine wake up reasons for protection state and transfer to stand-by µP. switch off LCD lamp supply Wait 250ms (min.
Page 25
ComPair CONNECTOR CONNECTOR Introduction ComPair (Computer Aided Repair) is a service tool for Philips Consumer Electronics products. ComPair is a further development on the European DST (service remote control), which allows faster and more accurate diagnostics. ComPair has three big advantages: 1.
Page 26
EN 26 EJ2.0U LA Service Modes, Error Codes, and Fault Finding Error Codes • On screen via the SAM (only if you have a picture). E.g.: – 00 00 00 00 00: No errors detected – 06 00 00 00 00: Error code 6 is the last and only 5.5.1 Introduction detected error...
Page 27
Service Modes, Error Codes, and Fault Finding EJ2.0U LA EN 27 Extra Info • Error 32 (MPIF1). Together with error 32, you will probably • Rebooting. When a TV is rebooting constantly due to see error 16 and 17. These errors are no longer valid. internal problems, most of the time no errors will be logged •...
Page 28
EN 28 EJ2.0U LA Service Modes, Error Codes, and Fault Finding 5). When x= 1 the last detected error is shown, x= 2 the Fault Finding and Repair Tips second last error, etc..Take notice that it takes some seconds before the blinking LED starts. Read also paragraph "Error Codes"...
Page 29
MOSFETs (7U01 or 7U03). Item 7U00 should (e.g. USB memory stick). You can download the new software be replaced as well in this case. from the Philips website to your PC. Software Upgrading Partition 0 (Service) If the "Partition 0" software is corrupted, the software needs to 5.9.1...
Page 30
TV into the software upgrade application. To do so: • Disconnect the TV from the Mains/AC Power. • Press the “OK” button on a Philips DVD RC-6 remote control (it is also possible to use the TV remote in "DVD" mode). •...
Block Diagrams, Test Point Overviews, and Waveforms EJ2.0U LA EN 31 6. Block Diagrams, Test Point Overviews, and Waveforms Wiring Diagram WIRING 37” LCD INVERTER INVERTER 8508 8539 8740 8302 8304 AMBI LIGHT 8309 (IN BACK COVER) 8740 STANDBY 1M02 8306 LVDS 1309...
Block Diagrams, Test Point Overviews, and Waveforms EJ2.0U LA EN 33 Block Diagram Video VIDEO B02B B05B MAIN TUNER MPIF MAIN: PNX 2015: VIPER: VIPER: MAIN MEMORY 7A00 PNX3000HL 7J00 7V00 7V01 PNX2015E PNX8550 K4D551638F B03C B03B 1T04 1A10 B04C TUNNELBUS B05C B05B...
Alignments EJ2.0U LA EN 99 8. Alignments Software Alignments Index of this chapter: 8.1 General Alignment Conditions 8.2 Hardware Alignments Put the set in SAM mode (see the "Service Modes, Error Codes 8.3 Software Alignments and Fault Finding" section). The SAM menu will now appear on 8.4 Option Settings the screen.
Page 100
EN 100 EJ2.0U LA Alignments When such equipment is not available, use “method 2”. Method 2 (without color analyzer): If you do not have a color analyzer, you can use the default values. This is the next best solution. The default values are average values coming from production (statistics).
Page 101
Others n.a. parameters). ME6 2K6 for this set Miscellaneous Alternative Tuner Philips Tuner brand Tuner Type TD1336S Tuner type Hotel mode Opt. no. Group 1 xxxxx xxxxx xxxxx xxxxx (see set sticker) Group 2...
Page 102
3 (8) Interconnect China IF 0= Off, 8= On 4 (16) Alternative Tuner 0= Philips, 16= Alps Tuner make. 5 (32) Tuner Type 0= TD1336s (B-Chassis US), 32= TD1331(J-Chassis US), Tuner type 64= UV1318 (Analogue EU), 96= TD1316 (Hybrid EU) (B-chassis US is e.g "BP2.3U").
Circuit Descriptions, Abbreviation List, and IC Data Sheets EJ2.0U LA EN 105 9. Circuit Descriptions, Abbreviation List, and IC Data Sheets Index of this chapter: Digital Reception 9.1 Introduction The TV receives multimedia information by tuning to one of 9.4 Abbreviation List many 6 MHz input channels available via a cable connection.
Page 106
EN 106 EJ2.0U LA Circuit Descriptions, Abbreviation List, and IC Data Sheets SSB Cell Layout LVDS SIGNAL PROCESSING DC/DC & DISPLAY CONV. INTERFACE MPIF RS232 TUNER SOURCE SELECTION G_15940_060.eps 260506 Figure 9-1 SSB top view RS232 AVIP COLUMBUS STBY CONTROLLER VIPER SOURCE SELECTION HDMI...
Page 107
Circuit Descriptions, Abbreviation List, and IC Data Sheets EJ2.0U LA EN 107 Audio Amplifier In the Jaguar platforms of this generation, a so-called “Class- D” audio-amplifier is used. Conventional audio amplifiers operate in class AB, which means that their output stages operate linearly. Class-D amplifiers use switching techniques -- like in a switch-mode power supply -- so the power stage is a simple switch.
Page 108
EN 108 EJ2.0U LA Circuit Descriptions, Abbreviation List, and IC Data Sheets 9.2.1 Class-D Audio Stage The class-D audio stage can be found in diagram B08A. See figure “Class-D stage diagram” for details. Dead zone Power switch 3D35 2D52 3D34 100n 3D39 7D15...
Page 109
Circuit Descriptions, Abbreviation List, and IC Data Sheets EJ2.0U LA EN 109 9.2.2 Over-Current Protection “high”. See figure “Over-current protection and sound mute” for details. The arrows indicate the signal levels during over- current protection active. If an over current error occurs (short-circuit on the output), transistors 7D30 and 7D12-1 will conduct and 7D12-2, 7D26-2 and 7D26-1 will block.
Page 110
EN 110 EJ2.0U LA Circuit Descriptions, Abbreviation List, and IC Data Sheets 9.2.3 DC Protection Circuitry See figure ““DC protection circuitry” for details. DC-Protection + Protection Latch Protection 3D12 3D13 Protection if DC Level 3D89 from output is >1V DC 3D10 7D10-1 2D11...
Circuit Descriptions, Abbreviation List, and IC Data Sheets EJ2.0U LA EN 111 Abbreviation List CVBS Composite Video Blanking and Synchronization Digital to Analogue Converter 0/6/12 SCART switch control signal on A/V Dynamic Bass Enhancement: extra board. 0 = loop through (AUX to TV), 6 low frequency amplification = play 16:9 format, 12 = play 4:3 See "E-DDC"...
Page 112
LOcal REgression approximation QTNR Quality Temporal Noise Reduction noise reduction QVCP Quality Video Composition Processor LG.Philips LCD (supplier) Random Access Memory Loudspeaker Red, Green, and Blue. The primary color signals for TV. By mixing levels LVDS Low Voltage Differential Signalling...
Page 113
4.406250 MHz and 4.250000 MHz Sound Intermediate Frequency SMPS Switched Mode Power Supply Sync On Green SOPS Self Oscillating Power Supply S/PDIF Sony Philips Digital InterFace SRAM Static RAM Small Signal Board STBY STandBY Sync On Green SVGA 800x600 (4:3)
EN 114 EJ2.0U LA Circuit Descriptions, Abbreviation List, and IC Data Sheets IC Data Sheets This section shows the internal block diagrams and pin configurations of ICs that are drawn as "black boxes" in the electrical diagrams (with the exception of "memory" and "logic" ICs).
Page 115
Circuit Descriptions, Abbreviation List, and IC Data Sheets EJ2.0U LA EN 115 9.5.2 Diagram A4, MC34067P (IC 7U01) Block Diagram Pin Configuration MC34067 UVLO / Enable / 5.0 V Enable UVLO Adjust Reference Osc Charge One–Shot RC Osc Charge UVLO Variable Osc RC V CC...
Page 116
EN 116 EJ2.0U LA Circuit Descriptions, Abbreviation List, and IC Data Sheets 9.5.4 Diagram B2A, NXT2004 (IC 7T22) Block Diagram VSB/QAM MPEG IF In text text text Demodulator Transport Sense 32K x 8 text BERT text RF Gain SRAM text IF AGC RF AGC µC...
Page 117
Circuit Descriptions, Abbreviation List, and IC Data Sheets EJ2.0U LA EN 117 9.5.5 Diagram B3A/B/C/D, PNX 3000H (IC 7A00) Block Diagram CVBSOUTA 1× CVBSOUTB 2NDSIFEXT (FMRAD) CVBSOUTIF SIFAGC MIXER SIFIN 2nd SIF internal & AM SND DEMOD DTV 1st IF DTVOUT SWITCH VIFIN...
Page 118
EN 118 EJ2.0U LA Circuit Descriptions, Abbreviation List, and IC Data Sheets 9.5.6 Diagram B4A/B/C/D/E/F, PNX 2015 (IC 7J00) Block Diagram 16-BIT 225 MHz DDR PNX2015 MEMORY CONTROLLER video NORTH TUNNEL SOUTH TUNNEL PNX8550 coprocessor HD input (TDA9975) MEMORY VO-1 BASED SCALER VIDEO MPEG VO-2...
Page 119
Circuit Descriptions, Abbreviation List, and IC Data Sheets EJ2.0U LA EN 119 9.5.7 Diagram B5C, VIPER (IC 7V00) Block Diagram Streaming Interface Optional External 32-Bit 225 MHz DDR from Tunnel Video Improvement Processing PNX8550 Memory 30 (dig) DVD-CSS 5-Layer Controller Primary Tunnel Video Out...
Page 120
EN 120 EJ2.0U LA Circuit Descriptions, Abbreviation List, and IC Data Sheets 9.5.8 Diagram B5F, LD3985M33 (IC 7M05/6) Diagram B6, LD3985M33 (IC 7G42) Diagram B7A, LD3985M33 (IC 7B25) Block Diagram Pin Configuration TSOT23-5L/SOT23-5L Flip-Chip G_16290_084.eps 020206 Figure 9-17 Internal block diagram and pin configuration...
Page 121
Circuit Descriptions, Abbreviation List, and IC Data Sheets EJ2.0U LA EN 121 9.5.9 Diagram B6, ADV7123KSTZ140 (IC 7G40) Block Diagram BLANK BLANK AND SYNC LOGIC SYNC DATA R9–R0 REGISTER DATA G9–G0 REGISTER DATA B9–B0 REGISTER VOLTAGE POWER-DOWN PSAVE REFERENCE MODE CIRCUIT CLOCK ADV7123...
Page 122
EN 122 EJ2.0U LA Circuit Descriptions, Abbreviation List, and IC Data Sheets 9.5.10 Diagram B7A, LD1117DT33 (IC 7B45) Block Diagram Pin Configuration LD1117DT DPAK F_15710_166.eps 230905 Figure 9-19 Internal block diagram and pin configuration 9.5.11 Diagram B8A, LM339P (IC 7D10) Block Diagram Pin Configuration G_16290_082.eps...
Page 123
Circuit Descriptions, Abbreviation List, and IC Data Sheets EJ2.0U LA EN 123 9.5.12 Diagram B7B, TDA9975H (IC 7B50) Block Diagram τ ORR/V τ I²C ORB/U τ ORG/Y G/Pb B/Pb1 B/Pb2 B/Pb3 I²C 10/12 I²C I²C CLAMP BIAS I²C I²C I²C I²C I²C BIAS...
Need help?
Do you have a question about the 37PF9631D/37 and is the answer not in the manual?
Questions and answers