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 BB 0463 Service PaCE...
EN 2 A02U AA Technical Specifications, Connections, and Chassis Overview 1. Technical Specifications, Connections, and Chassis Overview Index of this chapter: Connections 1. Technical Specifications 2. Connections Note: The following connector color abbreviations are used 3. Chassis Overview (acc. to DIN/IEC 757): Bk= Black, Bu= Blue, Gn= Green, Gy= Grey, Rd= Red, Wh= White, Ye= Yellow.
Page 3
Technical Specifications, Connections, and Chassis Overview A02U AA EN 3 1.2.2 Rear Connections AV2 In (SVHS) - Ground - Ground 1 V_pp / 75 ohm 0.3 V_pp / 75 ohm AV4 In (not used for 27/32MS series) Wh - Audio - L 0.5 V_rms / 10 kohm...
EN 4 A02U AA Safety Instructions, Warnings, and Notes 2. Safety Instructions, Warnings, and Notes Safety Instructions Warnings • Safety regulations require that during a repair: In order to prevent damage to ICs and transistors, avoid all • Due to the chassis concept, a very large part of the circuitry high voltage flashovers.
Page 5
Safety Instructions, Warnings, and Notes A02U AA EN 5 • The semiconductors indicated in the circuit diagram and in To reflow the solder, apply a temperature profile according to the parts lists, are interchangeable per position with the the IC data sheet. So as not to damage neighboring...
EN 8 A02U AA Mechanical Instructions 4. Mechanical Instructions Index of this chapter: 1. Service connector 2. Set Disassembly 3. Service Positions 4. Assies / Panels Removal 5. Set Reassembly Note: figures below can deviate slightly from the actual situation, due to the different set executions.
Page 9
Mechanical Instructions A02U AA EN 9 Service Positions Assies/Panels Removal This chassis has several predefined service positions, for Sometimes, it can be necessary to swap a complete assy or better accessibility. They are explained below in more detail. Printed Wiring Board (PWB). How that can be done is explained below.
Page 10
EN 10 A02U AA Mechanical Instructions 1. Remove the fixation screw (1) (if present). To get access to the SSB test points, do the following: 2. Release the two pegs (2), by pushing them towards CRT. 1. Put the LSP in service position 1 (as described above).
(SAM) offer several features for the service technician, while When these 15 s are expired, the set will shutdown to the Customer Service Mode (CSM) is used for communication protection mode. between a Philips Customer Care Center (P3C) and a customer. Contents of SDM: •...
Page 12
When a customer is having problems with his TV-set, he can call his dealer or the Philips helpdesk (P3C). The service After entering this mode, "SAM" will appear in the upper right technician can than ask the customer to activate the CSM, in corner of the screen.
Introduction the picture improves, increase the "Brightness" or the "Contrast" value. ComPair (Computer Aided Repair) is a service tool for Philips 2. Check in CSM lines BRIGHTNESS and/or CONTRAST. If Consumer Electronics products. ComPair is a further the value of line BRIGHTNESS is low (< 10) or the value of development on the European DST (service remote control), line CONTRAST is low (<...
Page 14
EN 14 A02U AA Service Modes, Error Codes, and Fault Finding • can access the I2C bus of the television. ComPair can Pre-condition: Step 2 is done. No protection faults send and receive I2C commands to the micro controller of detected.
Service Modes, Error Codes, and Fault Finding A02U AA EN 15 5.4.5 How To Order Table 5-1 Error Code Table ComPair order codes: Error Description • ComPair Software: ST4191. No error • ComPair Interface Box: 4822 727 21631. Horizontal Protection (via NOHFB bit in ADOC) •...
EN 16 A02U AA Service Modes, Error Codes, and Fault Finding 5.6.2 How to Enter fault detection/protection must be enabled only after the chassis power supply has been established. Likewise, after the line drive starts, the deflection detection/protection must be Use one of the following methods: enabled.
Page 17
Service Modes, Error Codes, and Fault Finding A02U AA EN 17 Once the XRAY protection status is confirmed, the "PRD" bit has to be set to "1" by software. This enables an automatic stop Switch ADOC Threshold of the H-out via Slow Stop initiated by auto-clearing the DFL bit.
EN 18 A02U AA Service Modes, Error Codes, and Fault Finding Repair tips Switch ADOC Threshold 5.8.1 Miscellaneous FLASH Threshold EHT-INFO The relay you hear when you switch the set "on" (from Standby or via the AC power switch), is from the degaussing circuitry. It...
Page 19
Service Modes, Error Codes, and Fault Finding A02U AA EN 19 5.8.5 Main Supply (first connect ground to measuring equipment, than measure the gate). 1. Replace FET 7504 and zener 6505. 2. Disconnect the SSP panel. 5.8.6 Frame Deflection 3. Short B and E of TS7529, in order to put the Main Supply in "on"-mode (TS7529 is blocking then).
Page 20
EN 20 A02U AA Service Modes, Error Codes, and Fault Finding Software Downloading In this chassis, you can upgrade the software via ComPair. You can find more information on how this procedure works in the ComPair file. It is possible that not all sets are equipped with the hardware, needed to make software upgrading possible.
Block Diagrams, Testpoint Overview, and Waveforms A02U AA Block Diagram LSP Supply and Deflection DEFLECTION FRONT INTERFACE MAIN SUPPLY 0201 0202 1951 1505 1419 LINE DEFLECTION DC-SHIFT (OPTIONAL) 0317 1430 3550 SHIFT 400 mA MAINS SWITCH (not for USA) CIRCUIT...
Block Diagrams, Testpoint Overview, and Waveforms A02U AA Block Diagram 1 Audio & Video (A02 NAFTA IF_video_source_ select) VIDEO SOURCE SELECT & DATA LINK TUNER IF & SAW FILTER VTUN 7063 7100-B +5Vb MPIF VIDEO SWITCH CVBS-outA 6200 CVBS_SC2_MON_OUT Ident...
Circuit Diagrams and PWB Layouts A02U AA Small Signal Board: Feature Box FEATURE BOX 7300 BACK END PROCESSING LUMINANCE SHARPNESS SHARPNESS MEASURE COLOUR FEATURES FILTERS COMPENSATION DYNAMIC COLOUR DELAY PEAKING SKIN BLUE GREEN FRAME PANORAMA TONE SPACE COMPENSATION STRETCH ENHANCE...
Alignments A02U AA EN 89 8. Alignments Index of this chapter: 1. General alignment conditions 2. Hardware alignments 3. Software alignments 4. Option settings 1502 General Alignment Conditions Warning 8.1.1 Default Alignment Settings All alignments are on hot-part ! 5430...
Page 90
EN 90 A02U AA Alignments 8.2.2 Focus alignment decremented by pressing the right/left CURSOR button on the RC. 6. After alignment, save the value(s) with the STORE The LOT has the following outline: command in the SAM main menu. –...
Page 91
Alignments A02U AA EN 91 Table 8-2 White tone alignment (with color analyzer) Alignment No adjustments needed. Use the given default values: White D mode Temperature DUV Table 8-3 Geometry alignment (default values) Normal 9300 K +-0.003 282 +/- 8 298 +/- 8...
Page 92
EN 92 A02U AA Alignments 3. EW_1 (East-West parameter 1): Has effect on the length of 8.3.5 SMART SETTINGS the upper part of the vertical E/W lines. 4. EW_2 (East-West parameter 2): Has effect on the length of No adjustments needed. Use the given default values (differs the vertical E/W lines just below EW_1.
Page 93
Alignments A02U AA EN 93 When all the correct options are set, the sum of the decimal Table 8-6 Option bit settings values of each Option Byte (OB) will give the option number. 8.4.2 Changing options Options are used to control the presence / absence of certain features and hardware.
Page 94
EN 94 A02U AA Alignments 8.4.3 Option Bit Definition HDSF: High Definition Screen Fit. Function: Disabled/Enabled High Definition Screen Fit. Values: OFF=Disabled, High Definition Screen Fit is not Note: This chassis is global. Therefore all available options are available. ON= Enabled, High Definition Screen is Fit available.
Page 95
ON= Enabled, the access to Program List Values: 00= Disabled, ALPS compatible tuner is used. 01= Command is processed. Enabled, Philips compatible tuner is used, 10= Not Used, 11= Not Used. Picture In Picture PIPC: PIP Control.
Page 96
EN 96 A02U AA Alignments Smart clock downloaded from Teletext is enabled when SMCK AULK: Auto Lock. is ON. Function: Disabled/Enabled Auto Lock. Values: OFF= Disabled, AUTOLOCK is not available NVCK: Non-Volatile Clock. (CHILDLOCK is used). ON= Enabled, AUTOLOCK is available Function: Disabled/Enabled Non Volatile Clock function.
Page 97
Alignments A02U AA EN 97 Values: OFF= Disabled, no automatic switch to standby. ON= Enabled, set switches to standby after 4 hours. EPG: Electronic Program Guide. Function: Disable/Enable EPG feature. Values: OFF= Disabled, EPG feature is not available. ON= Enabled, EPG feature is available.
Page 98
SSB (Note: The actual PWB can differ from and mid range market segment. these photographs. They are only meant to give a general As one of the first Philips chassis, it is equipped with a HDMI overview): (High Definition Multimedia Interface) connector, for interfacing (HD) digital audio and video sources.
Page 99
Circuit Descriptions, Abbreviation List, and IC Data Sheets A02U AA EN 99 SERVICE PINS SD RAM MPIF 7730 7100 ADOC 1112 7300 FLASH 7790 1114 CL 36532058_060.eps 281003 Figure 9-1 SSB top view (tuner side) Headphone 7480 Amplifier 7525 1V8 Supply...
Page 100
EN 100 A02U AA Circuit Descriptions, Abbreviation List, and IC Data Sheets Block Diagrams The Main Supply, a SMPS based on the "boost converter" principle, generates the 140 V (V_BAT) and the +/- 28 V for the audio part. 7730...
Page 101
Circuit Descriptions, Abbreviation List, and IC Data Sheets A02U AA EN 101 will appear to behave and to look like "STANDBY" mode to the procedure as described further below. The definition of Mains user. The user is totally oblivious of the existence of this mode.
Page 102
EN 102 A02U AA Circuit Descriptions, Abbreviation List, and IC Data Sheets HDMI compressed (e.g. surround-sound) stream at sample rates up to 192 kHz. The DDC is used by the Source to read the Sink’s Enhanced 9.4.1 Introduction Extended Display Identification Data (E-EDID) in order to discover the Sink’s configuration and/or capabilities.
Page 103
Circuit Descriptions, Abbreviation List, and IC Data Sheets A02U AA EN 103 selection of analog CVBS outputs A and B for SCART or line output. The primary channel can be a CVBS or YC Control Video Sound CVBS_out signal. If an YC signal is selected for the secondary...
Page 104
EN 104 A02U AA Circuit Descriptions, Abbreviation List, and IC Data Sheets 7063 7100-B MPIF VIDEO SWITCH CVBS-outA Ident CVBS_SC2_ MON_OUT CVBS/Y prim CLAMP STROBE1N STROBE1N CLP prim STROBE1P STROBE1P CVBS-IF Data Link 54MHz DATA1N DATA1N CVBS-SC1_AV1-IN C prim CVBS-1...
Page 105
Circuit Descriptions, Abbreviation List, and IC Data Sheets A02U AA EN 105 7100-A 7100-D 91,77 7150-A MPIF AUDIO SWITCH 3150 98,88 L prim VREF_AUD_POS 3151 LR prim Supply 7150-B Ref. PIP-AUDIO AM EXT R prim 3152 VREF_DEFL L-SC1_AV1-IN 3153 Mono sec...
Page 106
EN 106 A02U AA Circuit Descriptions, Abbreviation List, and IC Data Sheets VDDCO VDDE Control Video Sound SDRAM DMSD=Digital Multi Standard Decoder 7300-J STROBE1N SDRAM ADOC VIDDEC (PRI & SEC) Primary EXT. STEREO STROBE1P colour I2D1 decoder DATA1N Sync Mux.
Page 107
Circuit Descriptions, Abbreviation List, and IC Data Sheets A02U AA EN 107 Digital Multi Standard Decoder (DMSD) (in this scenario, the DMSD cannot be used any more for CVBS This DMSD block contains the following functionality: input signals, and as such, VBI data slicing cannot be done).
Page 108
EN 108 A02U AA Circuit Descriptions, Abbreviation List, and IC Data Sheets Following blocks are present: Back End Features (BEF) • Black Stretch (BS). The function of BS is to pull the dark The Back End Features (BEF) block embodies a collection of areas in a picture to even darker levels.
Page 109
Circuit Descriptions, Abbreviation List, and IC Data Sheets A02U AA EN 109 RGB Control Processing Synchronization • The RGB control circuit of the DOP contains two sets of input signals: 9.6.1 Sync Flow – The first RGB input (RGB), 10 bits wide, is intended for the normal video signals coming from the BEF part.
Page 110
EN 110 A02U AA Circuit Descriptions, Abbreviation List, and IC Data Sheets selected SSIF passes some anti-alias filtering, is amplified in "demultiplexed", and forwarded to the Audio DSP for further an AGC amplifier and is then converted from analog to digital processing (volume, tone control, effects etc.).
Circuit Descriptions, Abbreviation List, and IC Data Sheets A02U AA EN 111 • Control Video PI Bus. • Sound PI Bus. The individual segments of the PI bus are interconnected via 9.8.1 Introduction PI-PI bridges. When several devices are connected to a bus...
EN 112 A02U AA Circuit Descriptions, Abbreviation List, and IC Data Sheets 9.11 Abbreviation list Abbreviation Description Electro Magnetic Interference Electronic Program Guide: system used by broadcasters to Table 9-1 Abbreviations transmit TV guide information (= NexTView) EPLD Erasable Programmable Logic Device...
Page 113
Mb/s Mega bits per second Short Circuit Multi Channel Sound: refers to Dolby Pro Logic Surround in A02 S/PDIF Sony Philips Digital InterFace ADOC SALSA System Application for Low Segment of Analogue TV Mode control data output Service Alignment Mode MIPS Microprocessor without Interlocked Pipeline-Stages.
Page 114
EN 114 A02U AA Circuit Descriptions, Abbreviation List, and IC Data Sheets Abbreviation Description Software / Subwoofer Switch 1 To Be Defined Total Harmonic Distortion TILT PWM Output signal (variable DC level) to control the picture tilt from the DOP block of the ADOC.
Circuit Descriptions, Abbreviation List, and IC Data Sheets A02U AA EN 115 9.12 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).
Page 116
EN 116 A02U AA Circuit Descriptions, Abbreviation List, and IC Data Sheets 9.12.2 Diagram B17, uPD64083 (IC7823) Block Diagram E XTD Y C O 9-0 D Y C O Error S elect VC LY D YC O 9-0 detection EXTALTF...