Philips 21PT9457 Service Manual
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Philips 21PT9457 Service Manual

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Colour Television

©
Copyright 2007 Philips Consumer Electronics B.V. Eindhoven, The Netherlands.
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 JY 0769 BG CD Customer Service
Contents
Waveforms
Printed in the Netherlands
Page
2
4
6
7
11
12
(A1) 13
21-22
(A2) 14
21-22
(A3) 15
21-22
(A4) 16
21-22
(A5) 17
21-22
(A6) 19
21-22
(A7) 18
21-22
(A8) 20
21-22
24
25
(G) 26
26
(G) 27
27
(M) 28
28
30
31
36
37
38
53
56
Subject to modification
Chassis
SK4.0L
CA
H_17210_000.eps
070607
EN 3122 785 17450

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Summary of Contents for Philips 21PT9457

  • Page 1: Table Of Contents

    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 JY 0769 BG CD Customer Service...

  • Page 2: Technical Specifications, Connections, And Chassis Overview

    EN 2 SK4.0L CA Technical Specifications, Connections, and Chassis Overview 1. Technical Specifications, Connections, and Chassis Overview Connection Overview Index of this chapter: 1.1 Technical Specifications 1.2 Connection Overview Note: The following connector colour abbreviations are used 1.3 Chassis Overview (Mechanical chassis) (acc.
  • Page 3 Technical Specifications, Connections, and Chassis Overview SK4.0L CA EN 3 Chassis Overview (Mechanical chassis) MAIN SWITCH PANEL H_17450_003.eps 210907 Figure 1-2 PWB location...

  • Page 4: Safety Instructions, Warnings, And Notes

    EN 4 SK4.0L CA Safety Instructions, Warnings, and Notes 2. Safety Instructions, Warnings, and Notes Index of this chapter: 1. Perform the “general repair instruction” noted above. 2.1 Safety Instructions 2. Clean the power supply and deflection circuitry on the 2.2 Maintenance Instructions chassis.
  • Page 5 2.4.4 Alternative BOM identification In September 2003, Philips CE introduced a change in the way the serial number (or production number, see Figure 2-2) is composed. From this date on, the third digit in the serial...

  • Page 6: Directions For Use

    EN 6 SK4.0L CA Directions for Use 3. Directions for Use You can download this information from the following websites: http://www.philips.com/support http://www.p4c.philips.com...

  • Page 7: Mechanical Instructions

    Mechanical Instructions SK4.0L CA EN 7 4. Mechanical Instructions Assembly / Board Removal Index of this chapter: 4.1 Set Disassembly 4.2 Assembly / Board Removal 4.2.1 Side I/O Panel removal 4.3 Set Re-assembly Note: Figures below can deviate slightly from the actual situation, due to the different set executions.
  • Page 8 EN 8 SK4.0L CA Mechanical Instructions 4.2.2 Power Switch removal H_17210_026.eps 080607 Figure 4-3 Power switch removal 1. From the mono carrier disconnect the main power, the degaussing coil, the speakers, the front control panel, the side I/O panel and deflection coil cables. Release the main power cord and the side I/O panel cable from it’s strain reliefs.

  • Page 9: Service Modes, Error Codes, And Fault Finding

    Service Modes, Error Codes, and Fault Finding SK4.0L CA EN 9 5. Service Modes, Error Codes, and Fault Finding Index of this chapter: 5.4.6 Picture not or incorrect Coloured 5.1 Test Points 5.2 Service Modes • Check the circuit from IC201 to R.G.B. three gun circuit. 5.3 Error Codes •...
  • Page 10 EN 10 SK4.0L CA Service Modes, Error Codes, and Fault Finding Personal Notes: E_06532_012.eps 131004...

  • Page 11: Block Diagrams, Test Point Overviews, And

    AV2 SW AV1 SW AV3 SW C in AV in 4 11 FS TUNER MTS/A2/NICAM IF AMP SAW101 PHILIPS UOC2 R OUT TDA93XX/N3 KEY CONTROL G OUT 21" CRT 6 KEY B OUT PWM CONTROL AUDIO VOL MUTE CRT BOARD...

  • Page 12: Schematic Overview Chassis

    Block Diagrams, Test Point Overviews, and Waveforms SK4.0L CA EN 12 Schematic Overview Chassis H_17450_006.eps 210907...

  • Page 13: Circuit Diagrams And Pwb Layouts

    Circuit Diagrams and PWB Layouts SK4.0L CA EN 13 7. Circuit Diagrams and PWB Layouts Mono Carrier: Power Supply POWER SUPPLY Stand by 5800 A3P610-00 H_17450_009.eps 210907...

  • Page 14: Mono Carrier: Line Deflection (A2)

    Circuit Diagrams and PWB Layouts SK4.0L CA EN 14 Mono Carrier: Line Deflection LINE DEFLECTION CN301 D309 R315 R310 4.7K 560K 1N4148 R318 +48V_VCC R317 D305 +8V_VCC T301 MTZJ20 R301 0.33 R401 T302 R302 R316 0.33 4.7K R327 Q450 R319 R325 C2482 H-out...

  • Page 15: Mono Carrier: Frame Deflection (A3)

    Circuit Diagrams and PWB Layouts SK4.0L CA EN 15 Mono Carrier: Frame Deflection FRAME DEFLECTION CN301 IC301 TDA4863AJ 100V C307 C305 0.1uF/100V R255 VDRA R309 100uF/50V 270 1W R256 VDRB D304 BA158 R308 C216 C215 C306 R306 R305 D303 220/2W 0.1uF/100V BA158 R307...

  • Page 16: Mono Carrier: Tuner If (A4)

    Circuit Diagrams and PWB Layouts SK4.0L CA EN 16 Mono Carrier: Tuner IF TUNER IF Q102 C1815 LC101 R115 31.9M R114 C204 0.01U A101 NTSC-M R116 R113 C107 R106 2.2K R111 R108 R105 C109 4.7K R213 1.5K C108 R109 1.2K 100pF BT+33V R703...
  • Page 17 Circuit Diagrams and PWB Layouts SK4.0L CA EN 17 Mono Carrier: AV Switch Personal Notes: AV SWITCH CVBS CVBS R829 Q204 VIDEO OUT C1815 R251 C823 10U/16V R842 4.7K D802 D807 Q803 4.7K R802 1815 R835 V / R Q804 D834 R837 R834...

  • Page 18: Tone Control

    Circuit Diagrams and PWB Layouts SK4.0L CA EN 18 Mono Carrier: Tone Control (Optional) TONE CONTROL WEIGHT TONE C512 C913 R914 R917 1000U 0.01U 100K CN902 R911 100K R916 C910 D901 MUTE1 C909 0.22U D902 100U 4148 R912 C1815 R913 Q902 R917 D903...

  • Page 19: Mono Carrier: Audio Amplifier (A6)

    Circuit Diagrams and PWB Layouts SK4.0L CA EN 19 Mono Carrier: Audio Amplifier AUDIO AMPLIFIER IC402 +8V_VC C +8V_VCC TFA9842AJ D401 IN4148 C432 L in L out 100uF R410 R411 Q402 A1015 C429 C428 220uF/25V CN760 47uF/ 50V C433 Lout 1000uF/ 25V D761 R409...

  • Page 20: Mono Carrier: Cpu & Decoder (A8)

    Circuit Diagrams and PWB Layouts SK4.0L CA EN 20 Mono Carrier: CPU & Decoder CPU & DECODER C203 C227 0.01U 47uF/ 16V IC202 C202 C201 24C08 100pF 100pF R234 R235 R220 IC201 +5V_VCC 3.3K 3.3K +5V_VCC TDA83731 R217 STANDBY STANDBY STANDBY IRin R204 100...

  • Page 21: Mono Carrier: Av Switch (A5)

    Circuit Diagrams and PWB Layouts SK4.0L CA EN 21 Layout Mono Carrier (Top Side) H_17210_009.eps 5800 A3P610-00 080607...
  • Page 22 Circuit Diagrams and PWB Layouts SK4.0L CA EN 22 Layout Mono Carrier (Bottom Side) H_17210_010.eps 5800 A3P610-00 080607...
  • Page 23 Circuit Diagrams and PWB Layouts SK4.0L CA EN 23 Keyboard Control Panel KEYBOARD CONTROL KEYBOARD CIRCUIT KEYBOARD CIRCUIT SW008 SW001 SW002 SW003 SW004 SW005 SW006 SW007 M001 PRO- PRO+ VOL- VOL+ MENU SLEEP MUTE TV/AV R710 R711 R712 R713 R714 R715 R716 R717...

  • Page 24: Keyboard Control Panel

    Circuit Diagrams and PWB Layouts SK4.0L CA EN 24 Layout Keyboard Control Panel (Top Side) H_17210_012.eps 5800 D1SL7P-61 080607 Layout Keyboard Control Panel (Bottom Side) H_17210_013.eps 5800 D1SL7P-61 080607...

  • Page 25: Main Switch Panel

    Circuit Diagrams and PWB Layouts SK4.0L CA EN 25 Main Switch Panel Layout Main Switch (Top Side) MAIN SWITCH H_17210_015.eps 5800 E1SL7P-61 080607 H_17210_014.eps 5800 E1SL7P-61 080607...

  • Page 26: Side A/V Panel (G)

    Circuit Diagrams and PWB Layouts SK4.0L CA EN 26 Side A/V Panel SIDE AV H_17210_016.eps 5800 G1SL7P-61 080607 Layout Side A/V Panel TOP SIDE BOTTOM SIDE H_17210_017.eps 5800 G1SL7P-61 080607...

  • Page 27: Btsc Panel (G)

    Circuit Diagrams and PWB Layouts SK4.0L CA EN 27 BTSC Panel Layout BTSC Panel (Top Side) H_17450_001.eps 200907 Layout BTSC Panel (Bottom Side) H_17450_005.eps 210907 H_17450_002.eps 200907...

  • Page 28: Slim Ew Panel (M)

    Circuit Diagrams and PWB Layouts SK4.0L CA EN 28 Slim EW Panel Layout Slim EW Panel SLIM DEFLECTION H_17210_019.eps 5800 M3P610-00 080607 H_17210_018.eps 5800 M3P610-00 080607...

  • Page 29: Sub Woofer

    Circuit Diagrams and PWB Layouts SK4.0L CA EN 29 Sub Woofer Panel (Optional) SUB WOOFER H_17210_020.eps 5800 Z3P610-00 080607...

  • Page 30: Sub Woofer Panel (Optional

    Circuit Diagrams and PWB Layouts SK4.0L CA EN 30 Layout Sub Woofer Panel Personal Notes: H_17210_021.eps 5800 Z3P610-00 080607 E_06532_012.eps 131004...

  • Page 31: Alignments

    Alignments SK4.0L CA EN 31 8. Alignments Index of this chapter: 8.3.3 Screen Voltage Adjust (Key 0). 8.1 General Alignment Conditions 8.2 Hardware Alignments 1. Set picture to “Standard” mode, without signal input. 8.3 Software Alignments 2. Press the keys [i+], “Smart sound” and “Smart picture” to enter the factory menu.
  • Page 32 R: EE E6 OSVE D: MONO ST SAP "4" "5" "3" SERVICE 6 YUV DR YUV DG YUV DB YUV CR YUV CG PHILIPS RC YDL PAL VCHIP YDL NTSC GAME YDL AV CALENDAR BLUE BACK BLACK BACK "6" "7" "8"...
  • Page 33 Alignments SK4.0L CA EN 33 Factory mode Settings Description of the factory menu Storage address Display string Range (Index value) Default SK4.0L CA B/W balance White point R adjustment. DRI R 0-63 0x00d White point G adjustment 0x00e DRI G 0-63 White point B adjustment 0x00f...
  • Page 34 0x0cb (bit3-bit0) Black current stabilization 0x0e8 (bit0) Black current loop detect 0x0e9 (bit7) WATCHDOG WATCH DOG 0x0eb (bit7) PHILIPS RC ON: Philips RC 0x0eb (bit6) OFF: Skyworth RC VCHIP VCHIP FUNCTION SWITCH 0x0ea (bit7) GAME GAME FUNCTION SWITCH 0x0eb (bit5)
  • Page 35 Alignments SK4.0L CA EN 35 Description of the factory menu Storage address Display string Range (Index value) Default SK4.0L CA YDL AV AV Luminance delay 0x0ca(bit7-bit4) 0-15 MAX BRI Maximum brightness 0x056 0-63 MID BRI Middle brightness 0x021 0-63 MAX CON Maximum contrast 0x058 0-63...

  • Page 36: Circuit Descriptions, Abbreviation List, And Ic Data Sheets

    EN 36 SK4.0L CA Circuit Descriptions, Abbreviation List, and IC Data Sheets 9. Circuit Descriptions, Abbreviation List, and IC Data Sheets Index of this chapter: resonator. The stereo channel separation is adjusted by an 9.1 Introduction automatic procedure to be performed during set production. 9.2 The various circuits The stereo identification can be read by the I C-bus.

  • Page 37: Abbreviation List

    Circuit Descriptions, Abbreviation List, and IC Data Sheets SK4.0L CA EN 37 Abbreviation List H-FLYBACK Horizontal Flyback H-OUT H_sync output of the module / Horizontal Output pulse 2 Carrier Sound Horizontal Acquisition; horizontal sync Commonly known as 2 Carrier Sound pulse (2CS) system Horizontal Flyback Pulse;...

  • Page 38: Ic Data Sheets

    EN 38 SK4.0L CA Circuit Descriptions, Abbreviation List, and IC Data Sheets can directly provide the desired IC Data Sheets frequency Progressive Scan Scan mode where all scan lines are This section shows the internal block diagrams and pin layouts displayed in one frame at the same of ICs that are drawn as “black boxes”...
  • Page 39 Circuit Descriptions, Abbreviation List, and IC Data Sheets SK4.0L CA EN 39 9.4.1 Diagram A1, W6554A, (IC601) H_17210_039.eps 120607 Figure 9-1 Block Diagram and Pin Configuration...
  • Page 40 EN 40 SK4.0L CA Circuit Descriptions, Abbreviation List, and IC Data Sheets 9.4.2 Diagram A1, P412, (IC602) H_17210_039.eps 120607 Figure 9-2 Block Diagram and Pin Configuration...
  • Page 41 Circuit Descriptions, Abbreviation List, and IC Data Sheets SK4.0L CA EN 41 9.4.3 Diagram A3, TDA486x, (IC301) Block Diagram TDA4865AJ THERMAL PROTECTION DIFFERENTIAL VERTICAL FLYBACK REFERENCE INPUT OUTPUT GENERATOR CIRCUIT STAGE VOUT R S1 C S1 deflection coil from deflection controller Block diagram of TDA4865AJ Pin Configuration TDA4865AJ...
  • Page 42 EN 42 SK4.0L CA Circuit Descriptions, Abbreviation List, and IC Data Sheets H_17210_035.eps 120607 Figure 9-4 Block Diagram...
  • Page 43 Circuit Descriptions, Abbreviation List, and IC Data Sheets SK4.0L CA EN 43 9.4.4 Diagram A5, 4052, (IC102) Block Diagram Pin Configuration H_17210_041.eps 120607 Figure 9-5 Block Diagram and Pin Configuration...
  • Page 44 EN 44 SK4.0L CA Circuit Descriptions, Abbreviation List, and IC Data Sheets 9.4.5 Diagram A7, TDA9842, (IC402) Block Diagram OUT1 kΩ OUT2 kΩ SHORT-CIRCUIT TEMPERATURE V REF PROTECTION VOLUME CONTROL 0.5V TFA9842AJ Pin Configuration OUT2 TFA9842AJ OUT1 H_17210_033.eps 110607 Figure 9-6 Block Diagram and Pin Configuration...
  • Page 45 Circuit Descriptions, Abbreviation List, and IC Data Sheets SK4.0L CA EN 45 9.4.6 Diagram A7, TDA9850, (IC801) Block Diagram ceramic resonator L + R stereo mono OUTL DEMATRIX STEREO DECODER MODE L − R/SAP audio SELECT OUTR processing TDA9850 INPUT composite NOISE STEREO/SAP...
  • Page 46 EN 46 SK4.0L CA Circuit Descriptions, Abbreviation List, and IC Data Sheets 9.4.7 Diagram A8, OM837x (IC201) Block Diagram H_17210_034.eps 130607 Figure 9-8 Block Diagram...
  • Page 47 Circuit Descriptions, Abbreviation List, and IC Data Sheets SK4.0L CA EN 47 Pin Configuration H_17210_029.eps 130607 Figure 9-9 Pin Configuration...
  • Page 48 EN 48 SK4.0L CA Circuit Descriptions, Abbreviation List, and IC Data Sheets H_17210_030.eps 130607 Figure 9-10 Pin Configuration...
  • Page 49 Circuit Descriptions, Abbreviation List, and IC Data Sheets SK4.0L CA EN 49 Pinning H_17210_031.eps 130607 Figure 9-11 Pin Configuration...
  • Page 50 EN 50 SK4.0L CA Circuit Descriptions, Abbreviation List, and IC Data Sheets 9.4.8 Diagram A8, TDA937x (IC201) Block Diagram SOUND TRAP +3.3 V TUNERAGC IFVO/SVO VISION IF C-BUS QSS SOUND IF ENHANCED ALIGNMENT-FREE TRANSCEIVER IFIN MEMORY PLL DEMOD. 80C51 CPU VST PWM-DAC QSS MIXER AGC/AFC...
  • Page 51 Circuit Descriptions, Abbreviation List, and IC Data Sheets SK4.0L CA EN 51 9.4.9 Diagram A8, 24C08 (IC202) H_17210_035.eps 120607 Figure 9-13 Block Diagram...
  • Page 52 EN 52 SK4.0L CA Circuit Descriptions, Abbreviation List, and IC Data Sheets Pin Configuration H_17210_036.eps 120607 Figure 9-14 Pin Configuration...

  • Page 53: Spare Parts List

    Spare Parts List SK4.0L CA EN 53 10. Spare Parts List Set Level C310 9965 000 40163 220pF 500V C812 9965 000 41097 100pF 50V C311 9965 100 04887 4.7μF 20% 250V C813 9965 000 41097 100pF 50V C312 9965 100 04890 0.027UF 5% 630V C822 9965 000 40157 0.1μF 50V Various...
  • Page 54 9965 000 41097 100pF 50V IC401 9965 000 40596 TDA9859 C827 9965 000 40171 10μF 20% 16V IC402 9965 100 04917 TFA9842AJ PHILIPS J807 9965 100 04921 Peaking Coil 56μH 10% C828 9965 000 40157 0.1μF 50V IC601 9965 100 04916 STR-W6554A SANKEN J808 9965 100 04921 Peaking Coil 56μH 10%...
  • Page 55 Spare Parts List SK4.0L CA EN 55 R801 9965 100 04839 2.2kΩ 5% 1/6W R802 9965 100 05146 8.2kΩ 5% 1/16-1/6W R803 9965 000 39979 CFR 150Ω 1/6W R804 9965 000 40252 Peaking coil 10μH 10% R805 9965 000 39975 CFR 100Ω 1/16W R806 9965 000 39975 CFR 100Ω...

  • Page 56: Revision List

    EN 56 SK4.0L CA Revision List 11. Revision List Manual 3122 785 17210 • First release.

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