Philips 21PT9457 Service Manual Download Page 1

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Published by JY 0769 BG CD Customer Service

Subject to modification

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,
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Colour Television

Chassis

SK4.0L

H_17210_000.eps

070607

Contents

Page

Technical Specifications, Connections, and Chassis
Overview

Safety Instructions, Warnings, and Notes

Directions for Use

Mechanical Instructions

Service Modes, Error Codes, and Fault Finding 9

Block Diagrams, Test Point Overviews, and
Waveforms

Block Diagram Chassis

Schematic Overview Chassis

Circuit Diagrams and PWB Layouts

Mono Carrier: Power Supply

(A1) 13

21-22

Mono Carrier: Line Deflection

(A2) 14

21-22

Mono Carrier: Frame Deflection

(A3) 15

21-22

Mono Carrier: Tuner IF

(A4) 16

21-22

Mono Carrier: AV Switch

(A5) 17

21-22

Mono Carrier: Audio Amplifier

(A6) 19

21-22

Mono Carrier: Tone Control (Optional)

(A7) 18

21-22

Mono Carrier: CPU & Decoder

(A8) 20

21-22

Keyboard Control Panel

(D) 23

(E) 25

(G) 26

(G) 27

(M) 28

Sub Woofer Panel (Optional)

(Z) 29

Alignments

Circuit Descriptions, Abbreviation List, and IC Data
Sheets

Summary of Contents for 21PT9457

Page 1: ...tructions 7 5 Service Modes Error Codes and Fault Finding 9 6 Block Diagrams Test Point Overviews and Waveforms Block Diagram Chassis 11 Schematic Overview Chassis 12 7 Circuit Diagrams and PWB Layouts Mono Carrier Power Supply A1 13 21 22 Mono Carrier Line Deflection A2 14 21 22 Mono Carrier Frame Deflection A3 15 21 22 Mono Carrier Tuner IF A4 16 21 22 Mono Carrier AV Switch A5 17 21 22 Mono Car...

Page 2: ...quency Hz 50 60 Ambient conditions Temperature range C 5 to 45 Maximum humidity 90 R H Power consumption Normal operation W 72 Stand by W 3 1 2 Connection Overview Note The following connector colour abbreviations are used acc to DIN IEC 757 Bk Black Bu Blue Gn Green Gy Grey Rd Red Wh White and Ye Yellow 1 2 1 Rear and Side Connections Figure 1 1 Rear and Side Connections Cinch Video CVBS Out Audi...

Page 3: ...Technical Specifications Connections and Chassis Overview EN 3 SK4 0L CA 1 1 3 Chassis Overview Mechanical chassis Figure 1 2 PWB location H_17450_003 eps 210907 D B E K A M G MAIN SWITCH PANEL ...

Page 4: ...sage conditions When a customer uses the set under normal circumstances for example in a living room the recommended interval is three to five years When a customer uses the set in an environment with higher dust grease or moisture levels for example in a kitchen the recommended interval is one year The maintenance inspection includes the following actions 1 Perform the general repair instruction ...

Page 5: ...sible but PHILIPS recommends strongly to avoid mixed regimes If this cannot be avoided carefully clear the solder joint from old tin and re solder with new tin 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 number example AG2B0335000001...

Page 6: ...Directions for Use EN 6 SK4 0L CA 3 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: ...er 4 1 1 Rear Cover Removal Warning disconnect the mains power cord before you remove the rear cover 1 Remove all the fixation screws of the rear cover 2 Now pull the rear cover backwards and remove it Figure 4 1 Rear Cover removal 4 2 Assembly Board Removal 4 2 1 Side I O Panel removal Figure 4 2 Side I O panel removal 1 Disconnect the sidepanel cable from the mono carrier and remove the cable fr...

Page 8: ...d 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 Pull out the mono carrier and place it sidewards This enables the removal of the front control panel 2 Then remove the four fixation screws 1 of the Front Control panel and remove the boa...

Page 9: ...k the closed circuit from tuner to picture decoder IC to detect whether there are defective components Or check whether the resistance of R117 R118 R203 and R204 has increased which also could cause the problem 5 4 5 No Good Picture or Double Image Check the correctness of the signal from IF1 IF2 to Q101 and relevant circuit In this case the problem can be Q101 and or SAW101 5 4 6 Picture not or i...

Page 10: ...Service Modes Error Codes and Fault Finding EN 10 SK4 0L CA 5 Personal Notes E_06532_012 eps 131004 ...

Page 11: ... R L V AMP TDA9841 9842 9843 L R TONE CONTROL KEY CONTROL R G B IK 24C08 CQ0765 V AMP TDA4863AJ H DRIVE SPL SPR CRT BOARD 21 CRT V DY H DY R OUT G OUT B OUT SW 90V 260V DEG COIL POWER SCL SDA PHILIPS UOC2 110V FOR B 43V 12V FOR MAIN 20V FOR AMP CVBS OUT SLIM PART 63 62 4 AV3 SW 10 9 PWM CONTROL AUDIO VOL MUTE AUDIO OUT SCART ID 7 10 44 5 I O 6 KEY L R AV1 SW AV2 SW 1 12 V 2 15 14 5 3 13 AUDIO 3DD5...

Page 12: ...EN 12 SK4 0L CA 6 Block Diagrams Test Point Overviews and Waveforms Schematic Overview Chassis H_17450_006 eps 210907 ...

Page 13: ...uit Diagrams and PWB Layouts EN 13 SK4 0L CA 7 7 Circuit Diagrams and PWB Layouts Mono Carrier Power Supply 1 2 3 4 A B C D 4 3 2 1 D C B A H_17450_009 eps 210907 POWER SUPPLY A1 A1 5800 A3P610 00 Stand by ...

Page 14: ...1 FLYBACK HEATER V ABL R325 100 R403 NC HY R302 0 33 V 2W R250 2 2K R316 4 7K D306 8V2 C310 27PF 50V AFC R401 4K7 C314 2n7 2KV L432 790mH C477 4 7uF 8V_VCC AFC AFC FOCUS SCREEN 564 C317 L302 34mH C318 274J 400V C325 364J 400 L301 105mH R321 1K C319 681 1 6 2 9 3 4 8 10 180V 1 2 3 4 T0 CRT G N D H E A T E R CRT G N D 1 80 V R315 4 7K R314 0 22 2W D308 2158 470PF 500 V C300 4 7UF 250V C309 5 GND R31...

Page 15: ...C304 1000uF 25V 0 1uF CN301 D302 BA158 470pF 0 1uF C303 1000uF 25V I NP 7 I NN 6 V out 5 VP4 13V 4 Vp3 pump 3 VP3 2 VP1 13V 1 IC301 TDA4863AJ 5 6 R308 1K8 2W R256 100 C306 0 1uF 100V R307 1 R306 220 2W C305 100uF 50V D304 BA158 C216 CAP C215 CAP 8V R326 10K D301 C302 Q301 C301 R303 C302 C301 R304 220 1W EHT VDRB VDRA v v H_17210_003 eps 110607 FRAME DEFLECTION A3 A3 5800 A3P610 00 ...

Page 16: ...74C R109 1 2K R111 470 R108 4 7K C109 10n R113 220 R116 2 2K R110 10 R112 10 C109 0 01U R107 1 2K LC101 NTSC M Q102 C1815 C204 0 01U R114 10K 31 9M 10K R115 Q103 C1815 R213 100 SYSTEM 1 SYSTEM R215 680 C103 10U 16V L101J 1UH SIF SAW102 C703 47 50V IC703 UPC574 R703 10K R102 15K TUNER AGC C105 100U 16V C104 100U 16V L201 10UH R101 27K SYSTEM SYSTEM1 SIF SAW102 33V_BT 8V_VCC TUNER AGC SDA SCL H_1721...

Page 17: ...74 10uF C242 10uF C IN SIDEL SIDER REAR R REAR L C717 10uF L AUDOUT A2 A1 4052 3 TONE 32 C821 1U 50V 1U 50V C820 C804 10uF C807 10uF OUTR OUTL AUDIOR out AUDIOLout VIDEOOUT BLANK OPTION V R in Y Gin U B in CVBS Y C R831 2 7K TONE26 TONE 7 4052 13 Q803 1815 Q804 1815 Q805 1815 C822 0 1U CVBS Y R835 10K R836 10K AV1 AV2 R837 10K AV3 R829 10 R842 4 7K C823 10U 16V R 8 41 4 7K R 84 0 4 7K R 85 4 1 5K ...

Page 18: ...917 100K R911 100K R914 510 C901 10U C902 10U R901 10K R902 10K C903 0 47U R903 51K Q901 C1815 R907 1K R904 100K R917 820 R903 51K R920 270 C903 47U C910 0 22U C512 1000U C913 0 01U R905 1K C914 0 1U Q902 R913 510 510 R912 R908 100K R909 100K C909 100U D901 8V2 C CAP C WOODER 8OHM IC901 TFA9800 0 22U C908 C907 0 22U PG SG OUT2 OUT1 MUTE IN IN SVRR VCC 3 2 5 1 4 6 7 9 8 WEIGHT TONE H_17210_006 eps ...

Page 19: ...K3 MUTE 8V_VC C 1 2 3 4 5 6 7 8 9 1 2 1 2 IC402 TFA9842AJ C424 222D R OUT R770 1K R769 1K VOL L out 22V_VCC RI RO Rout Lout Lin R410 75K 50V R408 3K3 R253 15K C431 10uF 16V D761 1N4148 C432 100uF R407 10K C430 1uF Q402 A1015 C750 1uF C749 1uF C428 47uF 50V C429 220uF 25V C433 1000uF 25V C434 1000UF 25V 4052 13 4050 3 8V_VCC MUTE VOL 22V_VCC H_17210_007 eps 110607 AUDIO AMPLIFIER A7 A7 5800 A3P610 ...

Page 20: ...5 BL R G B C239 0 022U R247 33K R425 27K D204 8V2 D202 8V2 D203 8V2 C240 0 022U C241 0 022U R243 22K Q202 C1815 Q203 C1815 GND GND R224 100 R223 180 L206 6 8uH Z201 XT 6 5 Q201 C1815 Z202 XT 6 0 Z204 XT 4 5 GND R227 4K7 R226 4K7 GND Z203 XT 5 5 WP 1 n c 2 A 2 3 V ss 4 V dd 8 PT C 7 SCL 6 SD A 5 IC202 24C08 R204 100 R206 100 C203 0 01U R20 5 3 3K R20 3 3 3K C227 47uF 16V R 20 2 3 3K R231 2 2K R229 ...

Page 21: ...Circuit Diagrams and PWB Layouts EN 21 SK4 0L CA 7 Layout Mono Carrier Top Side H_17210_009 eps 080607 5800 A3P610 00 ...

Page 22: ...EN 22 SK4 0L CA 7 Circuit Diagrams and PWB Layouts Layout Mono Carrier Bottom Side H_17210_010 eps 080607 5800 A3P610 00 ...

Page 23: ... 2 3 4 5 1 2 3 M001 R710 180 1 2 3 4 5 KEYBOARD CIRCUIT L E D SW005 MENU K E Y 5 V I R LED001 LED SW006 SLEEP SW007 MUTE SW008 TV AV SW003 VOL SW002 PRO SW004 VOL SW001 PRO G N D R711 220 R712 330 R713 470 R714 820 R715 1 5K R716 4 7K R717 RES R 100 C 10U R 1K KEYBOARD CIRCUIT D D KEYBOARD CONTROL H_17210_011 eps 080607 5800 D1SL7P 61 ...

Page 24: ...24 SK4 0L CA 7 Circuit Diagrams and PWB Layouts Layout Keyboard Control Panel Top Side Layout Keyboard Control Panel Bottom Side H_17210_012 eps 080607 5800 D1SL7P 61 H_17210_013 eps 080607 5800 D1SL7P 61 ...

Page 25: ...Circuit Diagrams and PWB Layouts EN 25 SK4 0L CA 7 Main Switch Panel H_17210_014 eps 080607 5800 E1SL7P 61 MAIN SWITCH E E Layout Main Switch Top Side H_17210_015 eps 080607 5800 E1SL7P 61 ...

Page 26: ...EN 26 SK4 0L CA 7 Circuit Diagrams and PWB Layouts Side A V Panel Layout Side A V Panel 5800 G1SL7P 61 G G SIDE AV H_17210_016 eps 080607 5800 G1SL7P 61 TOP SIDE BOTTOM SIDE H_17210_017 eps 080607 ...

Page 27: ...Circuit Diagrams and PWB Layouts EN 27 SK4 0L CA 7 BTSC Panel H_17450_005 eps 210907 K K Layout BTSC Panel Top Side Layout BTSC Panel Bottom Side H_17450_001 eps 200907 H_17450_002 eps 200907 ...

Page 28: ...EN 28 SK4 0L CA 7 Circuit Diagrams and PWB Layouts Slim EW Panel H_17210_018 eps 080607 5800 M3P610 00 M M SLIM DEFLECTION Layout Slim EW Panel H_17210_019 eps 080607 5800 M3P610 00 ...

Page 29: ...Circuit Diagrams and PWB Layouts EN 29 SK4 0L CA 7 Sub Woofer Panel Optional SUB WOOFER H_17210_020 eps 080607 5800 Z3P610 00 Z Z ...

Page 30: ...EN 30 SK4 0L CA 7 Circuit Diagrams and PWB Layouts Layout Sub Woofer Panel H_17210_021 eps 080607 5800 Z3P610 00 Personal Notes E_06532_012 eps 131004 ...

Page 31: ...the keys i Smart sound and Smart picture to enter the factory menu When in B W BALANCE page press mute on the RC There will be a level light line displays 3 Adjust flyback transformers Screen knob till the level bright line just can be seen press PROG and turn to other factory menu 4 When in the light line screen CUT R and CUT G can be adjusted if needed with the following RC key mapping To increa...

Page 32: ...U O O E D I 1 8 0 7 0 2 Y K S R E B Y S C S T N 5 N I P 0 BTSC A2 6 PIN 7 VOL1 BTSC TC 3 PIN 8 LED BTSC STS ON MUTEPIN MODE OFF BTSC ADJ Start CC HP 13 MTS DETECT 50 CC LINE 21 MTS FILTER 20 CC DELAY 12 W 00 00 40 09 0E 86 03 HCO ON R EE E6 OSVE OFF D MONO ST SAP SERVICE 6 8 E C I V R E S 7 E C I V R E S POW 3 I R B B U S 2 YUV DR 0 2 N O C B U S 8 M I T N O R E W O P YUV DG 3 0 3 L O C B U S N O ...

Page 33: ...NER 0 63 32 33 Horizontal parallelogram 0x04f H PARA 0 63 32 35 Horizontal bow 0x050 H BOW 0 63 32 35 EW trapezium 0x051 EW TRAPE 0 63 32 30 Expand 4 3 mode horizontal WIDTH adjust 0x0ed bit4 ZOOM 0 63 44 44 50hz 60hz Frequency 50 Hz Horizontal center 0x003 H PH 0 TV 63 TV 31 TV 35 TV Vertical slope 0x004 V SL 0 63 24 31 Vertical center 0x006 V SH 0 63 21 23 Vertical amplitude 0x005 V SI 0 63 33 2...

Page 34: ...ct key 5 Sound mode BTSC MODE MONO STEREO SAP Stereo noise limit 0x0ce bit7 bit4 BTSC ST 0 15 0 0 SAP noise limit 0x0ce bit3 bit0 BTSC SP 0 15 0 0 Sound input level adjustment 0x040 BTSC LI 0 15 7 9 Separate 0x041 BTSC A1 0 31 23 14 Separate 0x042 BTSC A2 0 31 22 6 Time constant 0x0cf bit7 bit4 BTSC TC 0 7 4 3 Stereo level switch 0x0e8 bit3 BTSC STS OFF ON OFF ON Stereo adjustment on off 0x0e8 bit...

Page 35: ...value in Voice state 0x065 TREBLE 50 50 SURROUND set value in Voice state 0x066 SURROUND OFF OFF BASS set value in Music state 0x067 BASS 55 55 TREBLE set value in Music state 0x068 TREBLE 60 60 SURROUND set value in Music state 0x069 SURROUND OFF OFF BASS set value in Theatre state 0x06a BASS 80 80 TREBLE set value in Theatre state 0x06b TREBLE 70 70 SURROUND set value in Theatre state 0x06c SURR...

Page 36: ...ot cancellation circuit and into the MPX demodulator The main L R signal passes a 75 ms fixed de emphasis filter and is fed into the dematrix circuit The decoded sub signal L R is sent to the stereo SAP switch To generate the pilot signal the stereo demodulator uses a PLL circuit including a ceramic resonator The stereo channel separation is adjusted by an automatic procedure to be performed durin...

Page 37: ...mplete TV picture comprising all lines 625 525 FTV Flat TeleVision G Green H H_sync to the module H DRIVE Horizontal Drive H FLYBACK Horizontal Flyback H OUT H_sync output of the module Horizontal Output pulse HA Horizontal Acquisition horizontal sync pulse HFB Horizontal Flyback Pulse Horizontal sync pulse from large signal deflection HW Hardware I Monochrome TV system Sound carrier distance is 6...

Page 38: ...ed from sync signals S C Short Circuit SCL Serial Clock signal on I2C bus SD Standard Definition SDA Serial Data line of I2 C bus SDRAM Synchronous DRAM SIF Sound Intermediate Frequency SMC Surface Mounted Component SMD Surface Mounted Device SMPS Switched Mode Power Supply SND SouND SRAM Static RAM STBY STandBY SVHS Super Video Home System TBD To Be Defined TXT Teletext TXT is a digital addition ...

Page 39: ...Circuit Descriptions Abbreviation List and IC Data Sheets EN 39 SK4 0L CA 9 9 4 1 Diagram A1 W6554A IC601 Figure 9 1 Block Diagram and Pin Configuration H_17210_039 eps 120607 ...

Page 40: ...Circuit Descriptions Abbreviation List and IC Data Sheets EN 40 SK4 0L CA 9 9 4 2 Diagram A1 P412 IC602 Figure 9 2 Block Diagram and Pin Configuration H_17210_039 eps 120607 ...

Page 41: ... RS1 CS1 CF RP C1 R5 D1 TDA4865AJ R3 R2 R1 R6 C2 7 INP INN deflection coil from deflection controller VOUT GND VP2 VN VP VP1 VP3 6 5 4 3 2 1 DIFFERENTIAL INPUT STAGE VERTICAL OUTPUT FLYBACK GENERATOR REFERENCE CIRCUIT THERMAL PROTECTION Pin configuration for DBS7P TDA4865AJ TDA4865AJ VP1 VP3 VP2 GND VOUT INN INP 1 2 3 4 5 6 7 Block Diagram Pin Configuration H_17210_038 eps 120607 ...

Page 42: ...Circuit Descriptions Abbreviation List and IC Data Sheets EN 42 SK4 0L CA 9 Figure 9 4 Block Diagram H_17210_035 eps 120607 ...

Page 43: ...rcuit Descriptions Abbreviation List and IC Data Sheets EN 43 SK4 0L CA 9 9 4 4 Diagram A5 4052 IC102 Figure 9 5 Block Diagram and Pin Configuration Block Diagram Pin Configuration H_17210_041 eps 120607 ...

Page 44: ...ure 9 6 Block Diagram and Pin Configuration Block Diagram Pin Configuration VOLUME CONTROL SHORT CIRCUIT AND TEMPERATURE PROTECTION VREF 0 5VCC VCC VCC 9 4 IN1 IN2 OUT1 OUT2 SVR CIV VC 1 3 7 8 2 6 5 GND TFA9842AJ 60 kΩ 60 kΩ TFA9842AJ OUT2 CIV IN1 GND SVR VC OUT1 IN2 VCC 2 1 3 4 5 6 7 8 9 H_17210_033 eps 110607 ...

Page 45: ...tereo mono SAP to audio processing 9 8 SDA SCL SUPPLY C18 24 6 C19 12 10 Vref VCAP VCC SAP DEMODULATOR C16 5 C15 4 INPUT LEVEL ADJUST 11 C1 NOISE DETECTOR STEREO SAP SWITCH C17 26 TDA9850 STEREO ADJUST DBX C14 3 C13 R3 R2 1 2 32 31 30 29 C12 C11 C10 C9 25 20 CL CR only during adjustment TDA9850 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 VEO CS CW CTS CTW...

Page 46: ...Circuit Descriptions Abbreviation List and IC Data Sheets EN 46 SK4 0L CA 9 9 4 7 Diagram A8 OM837x IC201 Figure 9 8 Block Diagram H_17210_034 eps 130607 Block Diagram ...

Page 47: ...Circuit Descriptions Abbreviation List and IC Data Sheets EN 47 SK4 0L CA 9 Figure 9 9 Pin Configuration H_17210_029 eps 130607 Pin Configuration ...

Page 48: ...Circuit Descriptions Abbreviation List and IC Data Sheets EN 48 SK4 0L CA 9 Figure 9 10 Pin Configuration H_17210_030 eps 130607 ...

Page 49: ...Circuit Descriptions Abbreviation List and IC Data Sheets EN 49 SK4 0L CA 9 Figure 9 11 Pin Configuration H_17210_031 eps 130607 Pinning ...

Page 50: ...YUV INSERT R G B REF CVBS SYNC H V COR RGB YUV MATRIX SATURATION YUV RGB MATRIX QSS SOUND IF AGC QSS MIXER AM DEMODULTOR SIFIN QSSO AMOUT AUDEXT AUDOUT AMOUT IFVO SVO REFOUT Block Diagram Pin Configuration H_17450_012 eps 210907 handbook halfpage XXX 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44...

Page 51: ...Circuit Descriptions Abbreviation List and IC Data Sheets EN 51 SK4 0L CA 9 9 4 9 Diagram A8 24C08 IC202 Figure 9 13 Block Diagram H_17210_035 eps 120607 ...

Page 52: ...Circuit Descriptions Abbreviation List and IC Data Sheets EN 52 SK4 0L CA 9 Figure 9 14 Pin Configuration Pin Configuration H_17210_036 eps 120607 ...

Page 53: ... 001μF 10 2kV C508 9965 100 04866 0 001uF 5 50V C509 9965 100 05315 47μF 250V C601 9965 000 40567 0 1μF A C250V 500V C602 9965 000 40568 Line Filter 30MHz X 2 C603 9965 000 40565 0 001μF 250V 400V C604 9965 000 40565 0 001μF 250V 400V C605 9965 000 41100 0 0047μF 500V C608 9965 000 41100 0 0047μF 500V C609 9965 000 40564 220μF C610 9965 000 40179 10μF 20 50V 63V C611 9965 100 04891 0 1μF 5 63 100V...

Page 54: ...Filter 30mH x 2 T602 9965 100 05324 Line Filter 30mH x 2 T604 9965 100 04932 Switching Transf Ec40 d D101 9965 000 40221 Zener 5V1 1 2W 5 D201 9965 000 40221 Zener 5V1 1 2W 5 D202 9965 000 40224 Zener 8V2 1 2W 5 D203 9965 000 40224 Zener 8V2 1 2W 5 D204 9965 000 40224 Zener 8V2 1 2W 5 D205 9965 000 40218 1N4148 150mA 100V D206 9965 000 41175 6V2 5 1 2W D207 9965 000 40221 Zener 5V1 1 2W 5 D301A 99...

Page 55: ...Ω 1 6W R804 9965 000 40252 Peaking coil 10μH 10 R805 9965 000 39975 CFR 100Ω 1 16W R806 9965 000 39975 CFR 100Ω 1 16W R807 9965 000 39976 CFR 10kΩ 1 16W R808 9965 000 39976 CFR 10kΩ 1 16W R810 9965 000 40304 CFR 1KΩ 1 16W ce IC801 9965 100 07712 TDA9850 IIC Bus IC802 9965 100 07713 L78L09CZ SGS TO 92 Q801 9965 000 40232 2SC1815Y 2PC1815 ...

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

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