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Philips L01.1U Service Manual
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Philips L01.1U Service Manual

Philips L01.1U Service Manual

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Table of Contents

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Colour Television

Contents
2
C, Supply Voltage and
Testpoint Overviews
2
I
C and Supply Voltage Diagram
Testpoint Overview Mono Carrier & CRT Panel 49
7. Electrical Diagrams and PWB's
NICAM, 2CS, BTSC Stereo Dec.(Diagram A9) 58
Front IO, Front Control and HP (Diagram A12) 61
PIP + Tilt Interface
Diversity Tables
CRT Panel: ECO Scavem
CRT Panel: ECO Scavem
Side AV Panel + Headphone
Side AV Panel + HP (SLIM)
Side AV Panel + HP (WIDE)
Top Control Panel
©
Copyright 2002 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 RB 0272 Service PaCE
Page
2
4
6
40
42
47
48
Diagram CBA
(Diagram A1) 50
65-70
(Diagram A2) 51
65-70
(Diagram A3) 52
65-70
(Diagram A4) 53
65-70
(Diagram A5) 54
65-70
(Diagram A6) 55
65-70
(Diagram A7) 56
65-70
(Diagram A8) 57
65-70
65-70
(Diagram A10) 59
65-70
(Diagram A11) 60
65-70
65-70
(Diagram A13) 62
65-70
(Diagram A16) 63
65-70
64
(Diagram B1) 71
73-74
(Diagram B2) 72
73-74
(Diagram C)
75
75
(Diagram C1) 76
77
(Diagram C2) 78
79
(Diagram E)
80
80
Printed in the Netherlands
Published in Heiloo Holland
Contents
Subject to modification
22/11/2016
Chassis
L01.1U
AC
CL 26532119_056.eps
171202
Page
(Diagram F)
81
82
(Diagram T)
83
84
(Diagram Q1) 85
85
(Diagram W) 86
86
87
93
103
104
105
106
EN 3122 785 13220

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Summary of Contents for Philips L01.1U

  • 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 RB 0272 Service PaCE...

  • Page 2: Technical Specifications, Connections And Chassis Overview

    22/11/2016 EN 2 L01.1U AC Technical Specifications, Connections and Chassis Overview 1. Technical Specifications, Connections and Chassis Overview Note: Described specifications are valid for the whole product : 2 x 5 W range. : 2 x 10 W Mono versions...
  • Page 3 22/11/2016 Technical Specifications, Connections and Chassis Overview L01.1U AC EN 3 Chassis Overview CRT PANEL TOP CONTROL PANEL SCAVEM FRONT INTERFACE PANEL SIDE AV PANEL + HEADPHONE "SLIM" "WIDE" POWER SUPPLY LINE DEFLECTION 2D 3LINE COMB FILTER FRAME DEFLECTION...

  • Page 4: Safety And Maintenance Instructions, Warnings And Notes

    22/11/2016 EN 4 L01.1U AC Safety & Maintenance Instructions, Warnings, and Notes 2. Safety & Maintenance Instructions, Warnings, and Notes Index of this chapter: 3. Clean the picture tube panel and the neck of the picture 1. Safety Instructions for Repairs tube.
  • Page 5 22/11/2016 Safety & Maintenance Instructions, Warnings, and Notes L01.1U AC EN 5 • The picture tube panel has printed spark gaps. Each spark gap is connected between an electrode of the picture tube and the Aquadag coating. • The semiconductors indicated in the circuit diagram and in...

  • Page 6: Directions For Use

    22/11/2016 EN 6 L01.1U AC Directions for Use Directions for Use Front Control Sets Published in Heiloo Holland...
  • Page 7 22/11/2016 Directions for Use L01.1U AC EN 7 Published in Heiloo Holland...
  • Page 8 22/11/2016 EN 8 L01.1U AC Directions for Use Published in Heiloo Holland...
  • Page 9 22/11/2016 Directions for Use L01.1U AC EN 9 Published in Heiloo Holland...
  • Page 10 22/11/2016 EN 10 L01.1U AC Directions for Use Published in Heiloo Holland...
  • Page 11 22/11/2016 Directions for Use L01.1U AC EN 11 Published in Heiloo Holland...
  • Page 12 22/11/2016 EN 12 L01.1U AC Directions for Use Published in Heiloo Holland...
  • Page 13 22/11/2016 Directions for Use L01.1U AC EN 13 Published in Heiloo Holland...
  • Page 14 22/11/2016 EN 14 L01.1U AC Directions for Use Published in Heiloo Holland...
  • Page 15 22/11/2016 Directions for Use L01.1U AC EN 15 Published in Heiloo Holland...
  • Page 16 22/11/2016 EN 16 L01.1U AC Directions for Use Published in Heiloo Holland...
  • Page 17 22/11/2016 Directions for Use L01.1U AC EN 17 Published in Heiloo Holland...
  • Page 18 22/11/2016 EN 18 L01.1U AC Directions for Use Published in Heiloo Holland...
  • Page 19 22/11/2016 Directions for Use L01.1U AC EN 19 Published in Heiloo Holland...
  • Page 20 22/11/2016 EN 20 L01.1U AC Directions for Use Published in Heiloo Holland...
  • Page 21 22/11/2016 Directions for Use L01.1U AC EN 21 Published in Heiloo Holland...
  • Page 22 22/11/2016 EN 22 L01.1U AC Directions for Use Published in Heiloo Holland...
  • Page 23 22/11/2016 Directions for Use L01.1U AC EN 23 Published in Heiloo Holland...
  • Page 24 22/11/2016 EN 24 L01.1U AC Directions for Use Published in Heiloo Holland...
  • Page 25 22/11/2016 Directions for Use L01.1U AC EN 25 Top Control Sets Published in Heiloo Holland...
  • Page 26 22/11/2016 EN 26 L01.1U AC Directions for Use Published in Heiloo Holland...
  • Page 27 22/11/2016 Directions for Use L01.1U AC EN 27 Published in Heiloo Holland...
  • Page 28 22/11/2016 EN 28 L01.1U AC Directions for Use Published in Heiloo Holland...
  • Page 29 22/11/2016 Directions for Use L01.1U AC EN 29 Published in Heiloo Holland...
  • Page 30 22/11/2016 EN 30 L01.1U AC Directions for Use Published in Heiloo Holland...
  • Page 31 22/11/2016 Directions for Use L01.1U AC EN 31 Published in Heiloo Holland...
  • Page 32 22/11/2016 EN 32 L01.1U AC Directions for Use Published in Heiloo Holland...
  • Page 33 22/11/2016 Directions for Use L01.1U AC EN 33 Published in Heiloo Holland...
  • Page 34 22/11/2016 EN 34 L01.1U AC Directions for Use Published in Heiloo Holland...
  • Page 35 22/11/2016 Directions for Use L01.1U AC EN 35 Published in Heiloo Holland...
  • Page 36 22/11/2016 EN 36 L01.1U AC Directions for Use Published in Heiloo Holland...
  • Page 37 22/11/2016 Directions for Use L01.1U AC EN 37 Published in Heiloo Holland...
  • Page 38 22/11/2016 EN 38 L01.1U AC Directions for Use Published in Heiloo Holland...
  • Page 39 22/11/2016 Directions for Use L01.1U AC EN 39 Published in Heiloo Holland...

  • Page 40: Mechanical Instructions

    22/11/2016 EN 40 L01.1U AC Mechanical Instructions 4. Mechanical Instructions Index of this chapter: Family Board with bracket (with separate 'control'). 1. Set Disassembly 1. Disconnect the strain relief of the AC power cord. 2. Service Positions 2. Disconnect the degaussing coil by removing the cable from 3.
  • Page 41 22/11/2016 Mechanical Instructions L01.1U AC EN 41 Assembly/Board Removal 4.3.4 DAF Assembly/Board (if present) 4.3.1 Comb Filter Assembly/Board (if present) You can remove the Comb Filter panel from the family board by disconnecting it from connector 1810 (located at the top of the AC power transformer 5520).

  • Page 42: Service Modes, Error Codes And Faultfinding

    The L01.1U AC chassis also offers the option of using • Or via ComPair (with the ComPair 'Tools' RC7150 Service ComPair, a hardware interface between a computer and the TV Remote, it should be possible to enter SDAM via the chassis.
  • Page 43 22/11/2016 Service Modes, Error Codes and Fault Finding L01.1U AC EN 43 – Change the value of the selected menu item. – Activate the selected submenu. • In SDAM, when you press the MENU button, the set will switch to the normal user menus (with the SDAM mode still active in the background).
  • Page 44 PICTURE sub menu (if necessary). 4. Press the MENU LEFT/RIGHT keys to enter the PICTURE sub menu. ComPair (Computer Aided Repair) is a service tool for Philips 5. Use the MENU UP/DOWN keys to select SHARPNESS. Consumer Electronics products. ComPair is a further 6.
  • Page 45 22/11/2016 Service Modes, Error Codes and Fault Finding L01.1U AC EN 45 5.4.2 Specifications ComPair consists of a Windows based faultfinding program and an interface box between PC and the product. The ComPair interface box is connected to the PC via a serial or RS232 cable.
  • Page 46 22/11/2016 EN 46 L01.1U AC Service Modes, Error Codes and Fault Finding the repair. This ensures that old error codes are no longer Protections present. If possible, check the entire contents of the error buffer. In If a fault situation is detected, an error code will be generated;...

  • Page 47: Block Diagram, I

    22/11/2016 Block Diagram, I2C, Supply Voltage and Testpoint Overview L01.1U AC 6. Block Diagram, I C, Supply Voltage and Testpoint Overview Block Diagram SIDE AV FRONT I/O AUDIO/VIDEO BTSC-NDBX AUDIO AMPLIFIER FRONT INTFACE CONTROL +3.3V +3.3V SC2-LINA SOURCE SWITCHING...
  • Page 48 22/11/2016 Block Diagram, I2C, Supply Voltage and Testpoint Overview L01.1U AC C and Supply Voltage Diagram POWER SUPPLY SCAVEM LINE DEFLECTION +13V 5445 ANODE CRT FOCUS +200VA 5500 : 6500 6560 FOCUS CRT 5560 5564 5561 MAIN SUPPLY 3487...
  • Page 49 22/11/2016 Block Diagram, I2C, Supply Voltage and Testpoint Overview L01.1U AC Testpoint Overview Mono carrier copper track side AUDIO OUTPUT TILT 500mV / div DC 10V / div DC 20µs / div 20µs / div 7901 A8a B4 7000 TV-PROC.

  • Page 50: Power Supply

    22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC 7. Circuit Diagrams and PWB Layouts Mono Carrier: Power Supply 0211 C1 3591 B9 0212 A1 3594 E9 0213 B5 3595 E10 POWER SUPPLY 0231 C1 3596 E10 COLD VlotAux+13V 0251 E11...

  • Page 51: Line Deflection

    22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Mono Carrier: Line Deflection 0220 A2 3459 D6 0221 B6 3460 C10 0289 A8 3461 C6 LINE DEFLECTION 0298 F6 3463 D4 9453 0319 B2 3464 D8 9451 0321 D8 3465 A10...

  • Page 52: Frame Deflection

    22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Mono Carrier: Frame Deflection 0222 D9 2471 B6 2472 D7 MODEL L2K3 FRAME DEFLECTION 2473 C7 2474 D4 REGION CH/IN 2475 E4 LG.PH SMGK(SF) TUBE PHCO 2476 C8 LG.PH LG.PH 3470 C7...

  • Page 53: Tuner If

    22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Mono Carrier: Tuner IF 0265 A4 0283 C2 0285 B2 TUNER IF 1000 B3 1002 D7 FM-RADIO ANTENNA 1003 E7 1004 F7 0265 2001 D3 VlotAux+5V VT_Supply 2002 D3 2003 D5...

  • Page 54: Video If + Sound If

    22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Mono Carrier: Video IF + Sound IF 0243 C6 4210 B8 0248 C2 4211 B8 0249 B2 4212 B2 VIDEO IF + SOUND IF CVBSO 0266 E11 4213 A2 A10-A 0276 C2...

  • Page 55: Synchronisation

    22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Mono Carrier: Synchronisation 2241 D5 2242 D4 2243 B5 SYNCHRONISATION 2244 D5 2245 D6 2246 D7 2247 A7 2248 A7 2249 B4 2250 B4 9241 2252 C7 5241 2253 C7 4254...

  • Page 56: Control

    22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Mono Carrier: Control 0217 F2 0240 A3 0250 A2 CONTROL 0261 D2 FOR PIP FOR ITV ONLY 0273 A4 3611 0274 A8 +3.3V 0279 C3 100R DATA-OUT +3.3V 0304 G2 7602...

  • Page 57: Audio Amplifier

    22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Mono Carrier: Audio Amplifier 0246 B10 0267 G2 0271 C2 AUDIO_AMPLIFIER 0275 B4 0280 D10 0281 D10 2901 B7 2902 B7 2903 B5 2904 B4 3911 2905 C5 2906 C4 AmpOutR+...
  • Page 58 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Mono Carrier: NICAM + 2CS + BTSC (Stereo/SAP) Decoder 0239 F10 1831 B8 1851 E9 NICAM + 2CS + BTSC (STEREO/SAP) DECODER 1852 D8 2817 F10 [ FBAN60 - AUDPROC ]...

  • Page 59: Audio/Video Source Switch

    22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Mono Carrier: Audio/Video Source Switching 1810A E2 1810B C3 1811 F4 AUDIO/VIDEO SOURCE SWITCHING 2802 B9 2807 B5 2810 C9 2813 D9 2814 E7 2815 E7 2816 B3 3801 B2 3802 B2...

  • Page 60: Btsc-Ndbx Stereo Decoder

    22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Mono Carrier: BTSC NDBX Stereo Decoder 1861 C4 2803 C4 2862 C2 BTSC - NDBX STEREO DECODER 2863 C2 2864 B4 2865 B4 2866 E6 2867 E7 2868 E7 2869 D7...
  • Page 61 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Mono Carrier: Font I/O + Front Control + Headphone 0214 E9 0215 C4 0218-A C2 FRONT IO + FRONT CONTROL + HEADPHONE 0218-B B2 0218-C B2 0219 C4 0232 E5 0259 E10...

  • Page 62: Rear Io Cinch

    22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Mono Carrier: Rear I/O Cinch 0223-A A10 3153 D5 0223-B F2 3154 D1 0223-C C2 3156 D1 REAR I/O CINCH 0223-D A2 3157 E1 SET WITH VIDEO OUT 0225-A D10 3158 D2...
  • Page 63 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Mono Carrier: PIP Interface Circuit + Tilt Interface 0268 D5 0284 A5 PIP INTERFACE CIRCUIT & TILT INTERFACE 2171 B3 2172 D1 2173 D2 PIP INTERFACE (RESERVED) 3170 B1 3173 A2...
  • Page 64 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Mono Carrier: Diversity Tables DIVERSITY TABLE FOR POWER SUPPLY DIVERSITY TABLE FOR LINE DEFLECTION DIVERSITY TABLE FOR FRONT IO + FRONT CNTL + HP For Front Control SINGLE DUAL REGION LA/AP...
  • Page 65 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Layout Mono Carrier: Top Side Published in Heiloo Holland...
  • Page 66 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Layout Mono Carrier (Overview Bottom Side) 3442 D7 3693 E1 4127 C7 4826 B4 6449 C7 2001 A8 2237 A7 2832 B3 3011 A7 4128 C8 4827 C3 6452 C6 2002 A8...
  • Page 67 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Layout Mono Carrier (Part 1Bottom Side) CL 26532119_40a.eps 161202 Published in Heiloo Holland...
  • Page 68 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Layout Mono Carrier (Part 2 Bottom Side) CL 26532119_40b.eps 161202 Published in Heiloo Holland...
  • Page 69 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Layout Mono Carrier (Part 3 Bottom Side) CL 26532119_40c.eps 161202 Published in Heiloo Holland...
  • Page 70 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Layout Mono Carrier (Part 4 Bottom Side) CL 26532119_40d.eps 161202 Published in Heiloo Holland...
  • Page 71 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC CRT Panel ECO SCAVEM VG2 F9 0165 A7 0244 E1 CRT PANEL (ECO SCAVEM) 0245 D1 0254-A B7 0255 B6 AQUADAG 0256-A B6 0165 WIRE 1345 D6 1346 D6 2330 B3...
  • Page 72 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC CRT Panel ECO SCAVEM 0278 C7 2360 B1 2362 C2 ECO SCAVEM 2364 D1 2365 D1 2366 D1 2367 B3 2368 B4 2369 C3 2372 A3 4388 2373 A5 2375 B4...
  • Page 73 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Layout CRT Panel (Top Side) VG2 A1 0255 A2 2340 A1 2368 A2 3332 A2 3340 A2 3345 A1 3376 A2 5341 A1 6335 A1 7373 A2 9313 A2 0165 A1...
  • Page 74 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Layout CRT Panel (Bottom Side) 2342 A1 2365 A1 2375 A2 3361 A2 3375 A2 4311 A2 6332 A1 2344 A1 2366 A1 2380 A2 3362 A2 3378 A2 4312 A2...
  • Page 75 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Side AV + HP Panel Layout Side AV + HP Panel 0232 E5 0250-A C2 0250-B D2 SIDE AV + HP PANEL 0250-C B2 0251 A5 0254 E2 0255 E5 0277-A B1...
  • Page 76 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Side AV Panel + HP Panel (Slim) 0232 E4 0250-A B7 0250-B D7 SIDE AV PANEL + HP PANEL (SLIM) 0250-C A7 0251 A11 +6V8B 0254 E2 0255 E5 0277-A A6...
  • Page 77 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Layout Side AV Panel + HP Panel (Slim) (Top Side) Layout Side AV Panel + HP Panel (Slim) (Bottom Side) 0232 D1 0250 C1 0251 B1 0254 C1 0255 D1 1810 B1...
  • Page 78 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Side AV Panel + HP Panel (Wide) 0232 E4 0250-A C7 SIDE AV PANEL + HP PANEL (WIDE) 0250-B D7 0250-C B7 0251 A10 0254 E2 0255 E5 0277-A B6 0277-B D6...
  • Page 79 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Layout Side AV Panel + HP Panel (Wide) (Top Side) Layout Side AV Panel + HP Panel (Wide) (Bottom Side) 2171 B2 0232 C1 2172 B2 0250 B1 2173 B2 0251 B2...
  • Page 80 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Top Control Panel Layout Top Control Panel (Top Side) 0215 A1 1091 B3 TOP CONTROL PANEL 1092 B3 1093 B4 1094 B4 3091 A2 3092 A2 3093 A3 3094 A3 0215...

  • Page 81: Line Comb Filter

    22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC 2D 3 Line Comb Filter 0266 D10 2401 A2 2402 B1 2D 3 LINE COMB FILTER 2403 A3 2407 C1 2408 C1 2409 C1 2411 B3 2412 B3 2413 C3 7440...
  • Page 82 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Layout 2D 3 Line Comb Filter (Top Side) Personal Notes: CL 265321196_035.eps 161202 Layout 2D 3 Line Comb Filter (Bottom Side) CL 265321196_036.eps 161202 Published in Heiloo Holland...

  • Page 83: Top Control Panel

    22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Top Control Panel 0215 A1 0216 D1 TOP CONTROL PANEL 0217 D1 1090 D2 4086 1091 A2 FOR PCB-LAYOUT SEE NEXT PAGE 1092 A3 3086 0215 4091 4092 4093 4094 1093 A4...
  • Page 84 22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Layout Top Control Panel (Top Side) Layout Top Control Panel (Bottom Side) 0215 A1 2010 A1 1091 B1 2012 D1 6092 B1 2013 D1 1092 B1 2014 D1 1095 C1 2016 D1...

  • Page 85: Front Interface Panel

    22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC Front Interface Panel Layout Front Interface Panel FRONT INTERFACE PANEL 0211 B3 0212 B5 0214 D3 0218 D3 0231 B4 1606 E4 2691 E5 2698 E5 3500 C3 3501 C3 3685 E4...

  • Page 86: Daf Panel

    22/11/2016 Circuit Diagrams and PWB Layouts L01.1U AC DAF Panel + Inner Pin Cushion Correction Layout DAF Panel + Inner Pin Cushion Correction 0221 E1 0233 E4 0258 B1 DAF PANEL & INNER PIN CUSHION CORRECTION 0261 D4 0262 E4...

  • Page 87: Alignments

    22/11/2016 Alignments L01.1U AC EN 87 8. Alignments Index of this chapter: 3. Press the MENU LEFT or MENU RIGHT key to enter the 1. General Alignment Conditions WHITE TONE sub menu. 2. Hardware Alignments 4. In the WHITE TONE sub menu, press the MENU UP/ 3.
  • Page 88 22/11/2016 EN 88 L01.1U AC Alignments 1. To enter SDAM, press the following key sequence on the remote control transmitter: 0 6 2 5 9 6 directly followed by the MENU button (do not allow the display to time out between entries while keying the sequence).
  • Page 89 22/11/2016 Alignments L01.1U AC EN 89 – Turn the television set 'on' by using the 'POWER' Typenumber OP1 OP2 OP3 OP4 OP5 OP6 OP7 button on the remote control transmitter or the local 32PT5431/37R 129 1 252 152 keyboard.
  • Page 90 22/11/2016 EN 90 L01.1U AC Alignments 4. Press the AUTO PICTURE button on the remote control transmitter repeatedly to choose PERSONAL or MOVIES VERT. SLOPE picture mode. 5. To enter SDAM, press the following key sequence on the remote control transmitter: 0 6 2 5 9 6 directly followed by the MENU button (do not allow the display to time out VERT.
  • Page 91 22/11/2016 Alignments L01.1U AC EN 91 • East West Width (EWW). Select East-West Width and alignment must be performed first, before all other vertical align the picture width until the complete test pattern is alignments. Turning SBL 'on' will assist in performing this visible.
  • Page 92 22/11/2016 EN 92 L01.1U AC Alignments Parameter 20RF, 27V/29" 28WS 32WS 28WSRF 32WSRF 21RF, 25RF, 27RF, 29RF, 25", 28", 29"SF, 32V, 33" East-West Trapezium Vertical Slope Vertical Amplitude Vertical S-Correction Vertical Shift Vertical Zoom 8.3.5 Audio – Turn the television set 'on' by using the 'POWER' button on the remote control transmitter or the local keyboard.

  • Page 93: Circuit Description

    EN 93 9. Circuit Description Index of this chapter: 1. Introduction The 'L01.1U AC' is divided into 2 basic systems, i.e. mono and 2. Audio Signal Processing stereo sound. While the audio processing for the mono sound 3. Video Signal Processing is done in the audio block of the UOC, an external audio 4.
  • Page 94 22/11/2016 EN 94 L01.1U AC Circuit Description AUDIO SOURCE SELECTION EXT. AUDIO 7801 7861 INPUT 7831 EXT. AUDIO OUT CONTROL AUDIO DECODING 7209 7210 7901 PROCESSING FM IF SELECTION BUFFER MATR. SWITCH AUDIO NOT FOR AMPL. NAFTA 7834 7835 7200 RF ANT.
  • Page 95 The big improvement that the 2D comb filter brings, 7200 is the elimination (or near elimination) of dot crawl. This type of filter is used in the 'L01.1U AC' chassis. When present, the filter CBA is plugged-in on connector 1810B of 51˜53 RGB/YUV RGB/YUV _IN...
  • Page 96 22/11/2016 EN 96 L01.1U AC Circuit Description After processing, the Y/C outputs (pins 25 and 23) are both filtered by a low-pass filter, in order to eliminate the high The following additional controls are used: frequency harmonics of this system clock.
  • Page 97 22/11/2016 Circuit Description L01.1U AC EN 97 second half the spot accelerates, the SCAVEM-current is The 'EHTinformation' line on pin 11 is intended to be used as a zero at the end of the slope. 'X-ray' protection. When this protection is activated (when the...
  • Page 98 22/11/2016 EN 98 L01.1U AC Circuit Description voltage capacitors are considerable charged. At that point in Power Supply time, the deflection coil excites through C2465. This current peak, through the high-voltage capacitor, distorts the flyback pulse. This causes synchronization errors, causing an LINE oscillation under the white line.
  • Page 99 22/11/2016 Circuit Description L01.1U AC EN 99 Derived Voltages The voltages supplied by the secondary windings of T5520 are: • 'MainAux' for the audio circuit (voltage depends on set execution, see table below), • 3.3 V and 3.9 V for the microprocessor and •...
  • Page 100 22/11/2016 EN 100 L01.1U AC Circuit Description The moment that the voltage on pin 1 drops below the 'under voltage lock out' level (UVLO = ± 9 V), the IC will stop switching and will enter a safe restart from the rectified mains voltage.
  • Page 101 22/11/2016 Circuit Description L01.1U AC EN 101 In Standby, the power supply works in 'burst mode'. Burst mode can be used to reduce the power consumption below 1 Active/ W at stand-by. During this mode, the controller is active...
  • Page 102 User Interface will not be charged to the start-up voltage. The 'L01.1U AC' uses a remote control with RC5 protocol. The incoming signal is connected to pin 67 of the UOC. The 'Top Control' keyboard, connected to UOC pin 80, can also control the set.

  • Page 103: Abbreviation List

    22/11/2016 Circuit Description L01.1U AC EN 103 information if a Y/C or CVBS source is present. The Abbreviation list presence of an external Y/C source makes this line 'high' while a CVBS source makes the line 'low'. 2 Carrier (or Channel) Stereo •...

  • Page 104: Ic Data Sheets

    22/11/2016 EN 104 L01.1U AC Circuit Description Horizontal Flyback Pulse: horizontal Serial Data sync pulse from large signal deflection Service Default Mode Headphone SECAM SEequence Couleur Avec Memoire. Color phase control for NTSC (not the Color system mainly used in France same as 'Tint') and East Europe.

  • Page 105: Spare Parts List

    22/11/2016 Spare Parts List L01.1U AC EN 105 10. Spare Parts List Not applicable Published in Heiloo Holland...

  • Page 106: Revision List

    22/11/2016 EN 106 L01.1U AC Revision List 11. Revision List First release. Published in Heiloo Holland...

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