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Philips EM5A NTSC Service Manual

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Colour Television
Contents
6. Block Diagram, Testpoints, and Overviews
2
I
C-IC Overview
Testpoint Overview LSP & CRT/Auto SCAVEM 39
Testpoint Overview SSB
7. Electrical Diagrams and PWB's
Tuner SIMM connector (Female)(Diagram A8)
Diversity Tables LSP
SIMM connector (Male)
Diversity Tables SSB
©
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 WO 0268 Service PaCE
Page
2
4
6
17
21
33
34
35
36
37
38
40
Diagram CBA
(Diagram A1)
41
51-57
(Diagram A2)
42
51-57
(Diagram A3)
43
51-57
44
51-57
(Diagram A5)
45
51-57
(Diagram A6)
46
51-57
47
51-57
(Diagram A9)
48
51-57
(Diagram A10) 48
51-57
(Diagram A11) 49
51-57
50
(Diagram B1)
58
68-77
(Diagram B2)
59
68-77
(Diagram B3A) 60
68-77
61
68-77
(Diagram B3B) 62
68-77
(Diagram B3C) 63
68-77
Printed in the Netherlands
EM5A NTSC
Contents
OTC
Audio Demodulator
Anti Moiré
DW Panel: Multi PIP Contr.
DW Panel: Tuner
DW Panel: I/O Processing
DW Panel: IF Video Sync
DW Panel: V-chip Processor
3D Comb Panel
AC Power Switch Panel
CRT
CRT/Auto Scavem Panel
CRT 2
CRT/Auto Scavem Panel 2
DC Shift Panel
VDAF + 2nd Orders Panel
HD Jack Panel: Control
HD Jack Panel: Inputs/Outputs (Diagram N2)
HD Jack Panel: Sync Slycer
HD Jack Panel: Matrix
Side I/O Panel
Top Control
Auto SCAVEM
8. Alignments
Subject to modification
Chassis
AA
CL 26532058_000.eps
290502
Page
(Diagram B4)
64
68-77
(Diagram B5)
65
68-77
(Diagram B6)
66
68-77
(Diagram B9)
67
68-77
(Diagram B10) 67
68-77
(Diagram C1)
78
83-84
(Diagram C2)
79
83-84
(Diagram C3)
80
83-84
(Diagram C4)
81
83-84
(Diagram C5)
82
83-84
(Diagram CO) 85
86-85
(Diagram E)
87
88
(Diagram F1)
89
91-92
(Diagram F2)
90
91-92
(Diagram F1)
93
95-96
(Diagram F2)
94
95-96
(Diagram G)
97
97
(Diagram I)
98
99
(Diagram N1)
100
103
101
103
(Diagram N3)
102
103
(Diagram N4)
102
103
(Diagram O)
104
105
(Diagram P)
106
106
(Diagram SC1) 107
108
109
117
138
140
141
EN 3122 785 12620

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Table of Contents

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   Summary of Contents for Philips EM5A NTSC

  • 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 WO 0268 Service PaCE...
  • Page 2: Technical Specifications, Connections And Chassis Overview

    EN 2 EM5A NTSC Technical Specifications, Connections and Chassis Overview 1. Technical Specifications, Connections and Chassis Overview Technical Specifications Rear Connections 1.1.1 Reception AUDIO AUDIO Tuning system : PLL Color systems (off-air) : NTSC M Sound systems: : BTSC DBX...
  • Page 3 Technical Specifications, Connections and Chassis Overview EM5A NTSC EN 3 Chassis Overview TOP CONTROL PANEL CRT PANEL SIDE I/O PANEL SMALL SIGNAL BOARD JACK HIGH DEFINITION INTERFACE MAINSWITCH PANEL AUTO-SCAVEM LARGE SIGNAL PANEL DC-SHIFT (optional) 3D COMB PANEL DAF PANEL...
  • Page 4: Safety & Maintenance Instructions, Warnings And Notes

    Connect the set to AC power via an isolation transformer. • Safety components, indicated by the symbol , must be replaced with original Philips components. • Wear safety goggles when you replace the CRT. Safety regulations require that after a repair, you must return the set in its original condition.
  • Page 5 Safety and Maintenance Instructions, Warnings and Notes EM5A NTSC EN 5 Figure 2-2 Dolby Pro Logic Symbol. 2.4.2 Practical Service Precautions • It makes sense to avoid exposure to electrical shock. While some sources are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held in less regard.
  • Page 6: Directions For Use

    EN 6 EM5A NTSC Direction for Use 3. Direction for Use...
  • Page 7 Direction for Use EM5A NTSC EN 7...
  • Page 8 EN 8 EM5A NTSC Direction for Use...
  • Page 9 Direction for Use EM5A NTSC EN 9...
  • Page 10 EN 10 EM5A NTSC Direction for Use...
  • Page 11 Direction for Use EM5A NTSC EN 11...
  • Page 12 EN 12 EM5A NTSC Direction for Use...
  • Page 13 Direction for Use EM5A NTSC EN 13...
  • Page 14 EN 14 EM5A NTSC Direction for Use...
  • Page 15 Direction for Use EM5A NTSC EN 15...
  • Page 16 EN 16 EM5A NTSC Direction for Use...
  • Page 17: Mechanical Instructions

    Mechanical Instructions EM5A NTSC EN 17 4. Mechanical Instructions Index of this chapter: 1. Disconnect the loudspeaker cable at the top of the 1. Service connector subwoofer box. 2. Set Disassembly 2. The subwoofer is fixed in the bottom plate with two “rubber 3.
  • Page 18 EN 18 EM5A NTSC Mechanical Instructions 2. Hook the bracket in the first row of holes of the bottom tray. In other words, reposition the bracket from [1] to [2]. 4.3.3 LSP Solder Side 1502 CL 26532058_015.eps 290502 Figure 4-5 SSB removal (part 1) 1.
  • Page 19 Mechanical Instructions EM5A NTSC EN 19 4.4.2 Side-I/O Assembly and Panel S S B CL 16532149_069.eps 061201 Figure 4-9 Side I/O assembly CL 26532041_069.eps 110402 Figure 4-7 SSB removal (part 3) 1. Release the snap hook [1] with your finger.
  • Page 20 EN 20 EM5A NTSC Mechanical Instructions 4.4.4 DAF Assembly/Panel 2. Release the two securing clamps [2] and lift the board out of the bracket. 3. Both sides of the panel are now easy accessible. 4.4.7 3D Comb Filter Assembly/Panel This panel is placed in a bracket (together with the 3D Comb Filter panel) that is located on the left side of the tuner.
  • Page 21: Service Modes, Error Codes And Faultfinding

    Service Modes, Error Codes and Fault Finding EM5A NTSC EN 21 5. Service Modes, Error Codes and Fault Finding Index of this chapter: Note: It is possible that the main menu will appear when 1. Test points entering SDM. To switch it off, push the ‘MENU’ button again.
  • Page 22 This will give • ‘Code 1.' Gives the last 5 errors of the error buffer. As soon the Philips Service department extra information for as the built-in diagnose software has detected an error the diagnosis. buffer is adapted. The last occurred error is displayed on –...
  • Page 23 Service Modes, Error Codes and Fault Finding EM5A NTSC EN 23 the MENU LEFT and MENU RIGHT keys on the remote • ‘Preset Lock.' Indicates if the selected preset has a child control transmitter after pressing the 'MENU' button and lock: 'LOCKED' or 'UNLOCKED.' Change via 'MENU,' 'TV,'...
  • Page 24 5.4.1 Introduction capacitor. ComPair (Computer Aided Repair) is a service tool for Philips 5.4.3 Stepwise Start-up / Shutdown Consumer Electronics products. ComPair is a further development of the European DST (service remote control), Under normal circumstances, a fault in the power supply, or an which allows faster and more accurate diagnostics.
  • Page 25 Service Modes, Error Codes and Fault Finding EM5A NTSC EN 25 Table 5-1 Stepwise start-up table 7. Plug the power adapter in an AC outlet, and switch the interface 'on.' The green and red LEDs light up together. The red LED turns off after approximately 1 second, while...
  • Page 26 EN 26 EM5A NTSC Service Modes, Error Codes and Fault Finding 5.5.3 How to clear the Error Buffer If possible, check the entire contents of the error buffer. In some situations, an error code is only the result of another error...
  • Page 27 Service Modes, Error Codes and Fault Finding EM5A NTSC EN 27 The Blinking LED Procedure You can enter both SDM and SAM modes via the “service pads” on the SSB, via a remote control transmitter (DST or 5.6.1 Introduction standard RC), or via ComPair.
  • Page 28 EN 28 EM5A NTSC Service Modes, Error Codes and Fault Finding again, to ensure normal picture and sound conditions of the diagram A6) will put IC7700 in Standby mode (via tri-state set. input pin 6.) For more details, see the 'Circuit Descriptions and Abbreviation List' section.
  • Page 29 Service Modes, Error Codes and Fault Finding EM5A NTSC EN 29 3. Via the ‘SUP-ENABLE’ signal, the Main Supply is switched Note: Be careful when measuring the gate of FET TS7504. “on” and will deliver the VBAT to the Line deflection stage This circuitry is very high ohmic and can be damaged easily [2].
  • Page 30 EN 30 EM5A NTSC Service Modes, Error Codes and Fault Finding Table 5-4 Repair tips Phenomenon Possible Cause Repair tip No picture, no LED. Standby Supply defective. Measure circuitry (see diagram A2). Start at test point A19. When the set is connected to the power supply, this voltage must always be available No picture, no LED.
  • Page 31 Service Modes, Error Codes and Fault Finding EM5A NTSC EN 31 Phenomenon Possible Cause Repair tip Picture with horizontal Pixel Plus processing is mal- Check functionality of circuitry (B3a, B3b, and B3c) of PICNIC (7713), FAL- stripes. functioning CONIC (7718), EAGLE (7724) and/or field memories (7714, 7717, 7719, 7722 and 7723).
  • Page 32 EN 32 EM5A NTSC Service Modes, Error Codes and Fault Finding Personal Notes:...
  • Page 33: Wiring Diagram

    Wiring Diagram, Block Diagrams and Overviews EM5A NTSC 6. Wiring Diagram, Block Diagrams and Overviews Wiring Diagram CENTRE DEGAUSSING COIL SPEAKER TOP CONTROL PANEL AQUADAG TWEETER BLACK BLACK/ 1346 WHITE A (LOT) (COMPONENT VIEW) FRAME ROTATION CRT PANEL COIL...
  • Page 34: Block Diagram Supply And Deflection

    Wiring Diagram, Block Diagrams and Overviews EM5A NTSC Block Diagram Supply and Deflection SUPPLY DEFLECTION 1419 MAINS SWITCH MAIN SUPPLY LINE DEFLECTION DC-SHIFT (OPTIONAL) PANEL 1430 (PARTLY) SHIFT 3550 400 mA CIRCUIT 1417 1417 1418 5502 5511 LINE 5503...
  • Page 35: Block Diagram Video

    Wiring Diagram, Block Diagrams and Overviews EM5A NTSC Block Diagram Video VIDEO TUNER, IF, I/O PICNIC 3D COMBFILTER FROM SIM CONN. SIM CONN. SIMM-CONNECTOR CONN. VIDEOPROC. BLOCK DIAGRAM (FEMALE) (MALE) (HIP) 'CONROL' 1303 1303 1205 1000 COMB-Y-CVBS-OUT Y-OUT-3D Y-OUT...
  • Page 36: Block Diagram Audio

    Wiring Diagram, Block Diagrams and Overviews EM5A NTSC Block Diagram Audio AUDIO AUDIO DEMODULATOR AUDIO AMPLIFIER 1651 18M432 7675, 7668 SEE ALSO +5V2 MUTE-SSB ANTI-PLOP 7651 BLOCK DIAGRAM -16V-19V +16V+19V +5V_AUD CIRCUIT VIDEO MSP3452G 7702 CONN. CONN. 7323 TDA7490...
  • Page 37 Wiring Diagram, Block Diagrams and Overviews EM5A NTSC C IC’s overview I/O, VIDEO PROC. AUDIO PICNIC FALCONIC EAGLE +5V2_CON +5V2_CON DEMODULATOR 3044 3069 3064-D5 SDA-F SDA-F 3064-C6 SCL-F SCL-F 3377 3376 3454 3455 3321 3320 3655 3656 3710 3709...
  • Page 38: Supply Lines Overview

    Wiring Diagram, Block Diagrams and Overviews EM5A NTSC Supply Lines Overview SUPPLY LINES ROTATING RC5 RECEIVER IF/IO MAINS SWITCH MAIN SUPPLY +8Vp CIRCUITRY PANEL (PARTLY) 5.2V_MP +11V 3550 +11V 1601 7680 1403 +5V2 5415 5404 5405 TDA7052 +5V2_CON 125mA...
  • Page 39 Wiring Diagram, Block Diagrams and Overviews EM5A NTSC Testpoint Overview LSP and CRT Panel LSP COPPER TRACK SIDE CRT PANEL (COPPER TRACK SIDE) 1940 7330 7350 7340 1424 2 V / div DC 2 V / div DC 10µs / div 10µs / div...
  • Page 40 Wiring Diagram, Block Diagrams and Overviews EM5A NTSC Testpoint Overview Small Signal Board SSB SIDE A SSB SIDE Z 7719 7722 7717 7718 7724 7723 7714 1402 1001 7713 7001 7012 7007 7006 7711 3064 1681 30 1 1303...
  • Page 41: Main Supply

    Circuit Diagrams and PWB Layouts EM5A NTSC 7. Circuit Diagrams and PWB Layouts Large Signal Panel: Main Supply 0043 D1 3511 A6 5516 A2 1500 B1 3512 B6 5517 A4 MAIN SUPPLY 1501 A1 3513 A5 5518 C5 2541...
  • Page 42: Stand-by Supply

    Circuit Diagrams and PWB Layouts EM5A NTSC Large Signal Panel: Stand-by Supply 1146 E10 2109 E7 2123 D4 2148 A7 2161 B2 3113 D7 3127 E2 3142 E8 3155 D9 3168 A9 5107 C4 6106 E2 6121 E6 7100 E1...
  • Page 43: Line Deflection

    Circuit Diagrams and PWB Layouts EM5A NTSC Large Signal Panel: Line Deflection 0042 F8 1498 D13 2413 B4 2422 E7 2433 D8 2445 G12 2468 D11 3402 F9 3415 A4 3436 D8 3447 F11 3461 E11 3689 E10 5423 B7...
  • Page 44: Frame Deflection & E/w Drive (diagram A4)

    Circuit Diagrams and PWB Layouts EM5A NTSC Large Signal Panel: Frame Deflection E/W Drive 1625 C13 2481 F9 2620 C9 2635 A8 3421 D2 3475 F11 3488 E9 3621 D11 3633 B7 3645 A11 3661 C12 6458 G2 6617 B6...
  • Page 45: Rotation Circuitry

    Circuit Diagrams and PWB Layouts EM5A NTSC Large Signal Panel: Rotation Circuitry Personal Notes: 1601 A2 3681 D2 3684 C2 3687 C3 6082 B2 7681 D2 1620 C4 3682 E2 3685 C1 6080 C2 6083 C4 7682 D2 2601 C2...
  • Page 46: Audio Amplifier

    Circuit Diagrams and PWB Layouts EM5A NTSC Large Signal Panel: Audio Amplifier 0044 F7 2785 E9 3751 F6 0045 E5 2786 A2 3752 F9 AUDIO AMPLIFIER PM3394B PM3394B 1735 F2 2787 A7 3755 F7 1737 F9 2788 D1 3790 B3...
  • Page 47 Circuit Diagrams and PWB Layouts EM5A NTSC Large Signal Panel: Tuner SIM Connector (Female) 1200 F2 9989 B6 1201 G1 9990 B5 1205 I2 9998 I13 1932 F9 TUNER SIM CONNECTOR (FEMALE) 1933 B6 c001 H1 1934 A6 c002 H1...
  • Page 48: Receiver

    Circuit Diagrams and PWB Layouts EM5A NTSC Large Signal Panel: Receiver Large Signal Panel: Front 1950 A1 2900 B2 3900 A3 3901 B3 3902 C3 6900 B3 FRONT RECEIVER 1945 E3 1947 1946 B2 9978 1947 A2 A8-27 1949 B2...
  • Page 49: Inputs/outputs

    Circuit Diagrams and PWB Layouts EM5A NTSC Large Signal Panel: Inputs/Outputs 1900-A B1 3961 D3 1900-B B1 3962 D2 INPUTS/OUTPUTS 1900-C B1 3963 E3 1900-D F1 3964 E2 SVHS-IN: 1900-E F1 3965 F2 5900 +8VS 1900-F C1 3966 F2...
  • Page 50 Circuit Diagrams and PWB Layouts EM5A NTSC Large Signal Panel: Diversity Tables Standby supply [A2] Line deflection [A3] Frame deflection E/W drive [A4] Main supply [A1] Main supply [A1] Audio amplifier [A6] Item DESCRIPTION Item DESCRIPTION Item DESCRIPTION Item...
  • Page 51 Circuit Diagrams and PWB Layouts EM5A NTSC Layout Large Signal Panel (Top Side) CL 26532067_007.eps 050602...
  • Page 52 Circuit Diagrams and PWB Layouts EM5A NTSC Large Signal Panel: Mapping Top Side Large Signal Panel: Mapping Bottom Side 0042 C8 2103 D9 2742 E4 3407 D3 2460 A10 3462 C9 5463 C9 7682 G1 9906 G10 3686 G10...
  • Page 53 Circuit Diagrams and PWB Layouts EM5A NTSC Layout Large Signal Panel (Overview Bottom Side) Part 2 CL 26532067_08b.eps Part 1 CL 26532067_08a.eps Part 4 CL 26532067_08d.eps Part 3 CL 26532067_08c.eps CL 26532067_008.eps 300502...
  • Page 54 Circuit Diagrams and PWB Layouts EM5A NTSC Layout Large Signal Panel (Part 1 Bottom Side) CL 26532067_08a.eps 300502...
  • Page 55 Circuit Diagrams and PWB Layouts EM5A NTSC Layout Large Signal Panel (Part 2 Bottom Side) CL 26532067_08b.eps 300502...
  • Page 56 Circuit Diagrams and PWB Layouts EM5A NTSC Layout Large Signal Panel (Part 3 Bottom Side) CL 26532067_08c.eps 300502...
  • Page 57 Circuit Diagrams and PWB Layouts EM5A NTSC Layout Large Signal Panel (Part 4 Bottom Side) CL 26532067_08d.eps 300502...
  • Page 58 Circuit Diagrams and PWB Layouts EM5A NTSC Small Signal Board: SIM Connector (Male) v1 G3 v6 G3 v11 G5 v16 G5 v21 G6 v26 G7 v31 G8 v38 G10 v43 G11 v48 G11 v53 G12 v58 G13 v63 G14...
  • Page 59: If,i/o Videoprocessing

    Circuit Diagrams and PWB Layouts EM5A NTSC Small Signal Board: IF. I/O Video Processing 1303 B13 3414 D2 1305 E11 3415 A5 1306 E12 3416 D5 IF,I/O VIDEOPROCESSING 1307 E12 3417 G5 1308 E13 3418 C7 1403 A1 3419 D5...
  • Page 60: Picnic

    Circuit Diagrams and PWB Layouts EM5A NTSC Small Signal Board: PICNIC 0018 K15 3756 D4 0019 K15 3758 E6 PICNIC 1701 J5 3759 H5 1702 K5 3760 J5 1710 K4 3762 J12 PM3394B PM3394B PM3394B 2700 A2 3763 J12...
  • Page 61 Circuit Diagrams and PWB Layouts EM5A NTSC Small Signal Board: Diversity Tables IF, I/O videoprocessing [B2] IF, I/O videoprocessing [B2] PICNIC [B3A] EAGLE [B3C] EAGLE [B3C] HOP [B4] AUDIO DEMODULATOR [B6] AUDIO DEMODULATOR [B6] Item DESCRIPTION Item DESCRIPTION 2709...
  • Page 62: Falconic

    Circuit Diagrams and PWB Layouts EM5A NTSC Small Signal Board: Falconic 2776 I12 2780 I1 PHILIPS 2782 I3 FALCONIC 4721 2784 E1 4722 4723 2785 D4 4724 2786 E4 4712 2787 F4 4713 4714 2788 E4 4715 2789 I6...
  • Page 63: Eagle

    Circuit Diagrams and PWB Layouts EM5A NTSC Small Signal Board: Eagle 2709 C6 3795 F6 2710 D6 3800 G7 2711 E7 3801 H10 2712 A8 3802 G7 2716 D7 3803 H7 EAGLE 2717 J7 3804 C13 2768 2731 2851...
  • Page 64 Circuit Diagrams and PWB Layouts EM5A NTSC Small Signal Board: HOP 0014 I10 3351 B10 1301 G4 3352 A10 1304 G3 3353 A11 2301 C2 3354 A12 2303 E9 3355 B8 2304 G7 3358 A12 1V / div DC...
  • Page 65 Circuit Diagrams and PWB Layouts EM5A NTSC Small Signal Board: OTC 0015 G1 3041 I1 6001 E2 7015 I2 1001 G3 3042 J1 6002 F12 7016 J2 +8V_CON 1401 I13 3044 E2 6003 E3 9001 H2 +3V3_INTOTC +3V3_INTOTC 1402 I10...
  • Page 66 Circuit Diagrams and PWB Layouts EM5A NTSC Small Signal Board: Audio Demodulator 0016 I1 0016 I1 3528 C14 3528 C14 6650 A3 6650 A3 7678-B E14 0017 I1 0017 I1 3529 E14 3529 E14 6651 E3 6651 E3 7679-A I14...
  • Page 67 Circuit Diagrams and PWB Layouts EM5A NTSC Small Signal Board: Anti-moiré Small Signal Board: Headphone 2062 B3 2065 D2 3022 A2 3030 B4 3037 C2 3060 D1 3071 D2 7017 A2 7020 E1 2520 A3 2525 E3 2531 C2...
  • Page 68 Circuit Diagrams and PWB Layouts EM5A NTSC Layout Small Signal Board (Overview Top Side) 9750 B4 0009 E1 0017 C4 1408 D1 2002 B2 2011 C3 2029 C3 2301 D3 2324 E3 2336 D3 2349 D1 2358 D2 2665 D4...
  • Page 69 Circuit Diagrams and PWB Layouts EM5A NTSC Layout Small Signal Board (Part 1 Top Side) PART 1 150402 CL 2653041_41a.eps...
  • Page 70 Circuit Diagrams and PWB Layouts EM5A NTSC Layout Small Signal Board (Part 2 Top Side) PART 2 CL 2653041_41b.eps 150402...
  • Page 71 Circuit Diagrams and PWB Layouts EM5A NTSC Layout Small Signal Board (Part 3 Top Side) PART 3 CL 2653041_41c.eps 150402...
  • Page 72 Circuit Diagrams and PWB Layouts EM5A NTSC Layout Small Signal Board (Part 4 Top Side) PART 4 CL 2653041_41d.eps 150402...
  • Page 73 Circuit Diagrams and PWB Layouts EM5A NTSC Layout Small Signal Board (Overview Bottom Side) 2660 D1 2822 A3 3313 E3 3545 D1 3758 C1 6654 D1 9402 D4 1301 D3 1401 C4 1682 D1 2019 C3 2036 C3 2056 B4...
  • Page 74 Circuit Diagrams and PWB Layouts EM5A NTSC Layout Small Signal Board (Part 1 Bottom Side) PART 1 CL 26532041_42a.eps 150402...
  • Page 75 Circuit Diagrams and PWB Layouts EM5A NTSC Layout Small Signal Board (Part 2 Bottom Side) PART 2 CL 26532041_42b.eps 150402...
  • Page 76 Circuit Diagrams and PWB Layouts EM5A NTSC Layout Small Signal Board (Part 3 Bottom Side) PART 3 CL 26532041_42c.eps 150402...
  • Page 77 Circuit Diagrams and PWB Layouts EM5A NTSC Layout Small Signal Board (Part 4 Bottom Side) PART 4 CL 26532041_42d.eps 150402...
  • Page 78 Circuit Diagrams and PWB Layouts EM5A NTSC DW Panel: Multi PIP Controller 0205 D2 3828 B5 7876 A12 0273 B5 3829 C5 7891 H2 2811 F7 3831 C5 7892 B2 2812 E7 3832 C6 7893 B3 MULTI-PIP CONTROLLER (DW-PANEL)
  • Page 79 Circuit Diagrams and PWB Layouts EM5A NTSC DW Panel: Tuner Personal Notes: 0255 C5 2261 C1 2262 C2 2265 A3 2269 D5 3263 A2 3264 A2 3265 B2 3267 D3 3268 D3 3270 C2 5261 B1 7201 B4 TUNER PANEL...
  • Page 80 Circuit Diagrams and PWB Layouts EM5A NTSC DW Panel: I/O Processing 0200 D2 0201 E2 0209 B2 I/O PROCESSING 0236 C2 0237 H2 0272 C1 PIP-CVBS-MON C4-16 2401 C3 C4-24 2402 C3 2403 D3 C1-16 C2-14,F4-25 RESET 2404 B3...
  • Page 81 Circuit Diagrams and PWB Layouts EM5A NTSC DW Panel: IF Video Sync 0207 G2 3301 C7 3386 D11 1327 G5 3302 A7 3387 D12 1333 F2 3305 C3 3388 D12 1334 F2 3306 D6 3389 G9 3311 D8 1352 B3...
  • Page 82 Circuit Diagrams and PWB Layouts EM5A NTSC DW Panel: V-Chip Processor (Optional) 1501 B1 2502 B1 2504 C1 2506 B3 2508 C1 2511 B4 3502 A1 3504 C1 3507 A4 3509 A3 5501 B3 2501 A1 2503 B1 2505 C1...
  • Page 83 Circuit Diagrams and PWB Layouts EM5A NTSC Layout Double Window Panel (Top View) CL 16532043_096.eps 280601...
  • Page 84 Circuit Diagrams and PWB Layouts EM5A NTSC Layout Double Window Panel (Bottom View) CL 16532043_095.eps 250601...
  • Page 85 Circuit Diagrams and PWB Layouts EM5A NTSC 3D Comb Panel 0001 K15 3024 E6 7006 F6 3D COMB 0002 K14 3025 G6 7007 F8 1001 H19 3026 F7 7008 J5 1008 E1 3027 H8 7009 J6 1303 5000 1009 N1...
  • Page 86 Circuit Diagrams and PWB Layouts EM5A NTSC Layout 3D Comb Panel (Top View) Layout 3D Comb Panel (Bottom View) 0002 3040 1001 3041 1008 3042 1009 3043 1104 3044 1303 3055 1382 3056 1951 3057 2000 3058 2001 3059...
  • Page 87 Circuit Diagrams and PWB Layouts EM5A NTSC AC Power Switch Panel (Warning: Some models have tact switch) Personal Notes: 0201 A1 0202 A4 0240 B4 MAIN SWITCH PANEL 0241 C4 0245 E4 SDDF 1050 C1 1051 0202 1051 A2...
  • Page 88 Circuit Diagrams and PWB Layouts EM5A NTSC Layout AC Power Switch Panel (Top Side) Layout AC Power Switch Panel (Bottom Side) 0201 B2 2070 A1 0202 C2 3050 A2 0240 A2 3051 A1 0241 A2 3054 A2 0245 A2...
  • Page 89 Circuit Diagrams and PWB Layouts EM5A NTSC CRT Panel 0031 C7 1237-H H11 1298-I G11 2312 B10 2342 C9 2408 G1 3301 I5 3347 H14 3501 C2 3511 E2 3521 G2 3531 C3 3541 E2 5400 H5 6400 H7...
  • Page 90 Circuit Diagrams and PWB Layouts EM5A NTSC CRT/ Auto SCAVEM Panel 1483 E8 2430 A2 2437 B4 3411 B5 3421 C3 3427 C8 3451 B2 3458 B5 3474 D3 6402 B6 6411 D4 7426 E5 7432 D4 9407 E1...
  • Page 91 Circuit Diagrams and PWB Layouts EM5A NTSC Layout CRT / Auto SCAVEM Panel (Top Side) 9304 A2 0031 A1 0033 A1 9309 A1 0035 A2 9310 C1 1237 A3 9311 C1 1298 C3 9405 B4 1424 B1 9406 C2...
  • Page 92 Circuit Diagrams and PWB Layouts EM5A NTSC Layout CRT / Auto SCAVEM Panel (Bottom Side) 2301 3506 7504 7505 2302 3507 3508 7506 2303 2312 3509 7507 2318 3511 7508 9300 2341 3512 2342 3513 9301 2348 3514 9302...
  • Page 93 Circuit Diagrams and PWB Layouts EM5A NTSC CRT Panel 2 (34” Toshiba CRT) 0031 C7 1237-H H11 1298-I F11 2312 A10 2342 B9 2408 G1 3301 H5 3346 G10 3404 G4 3510 A5 3520 C5 3530 E5 3540 C2...
  • Page 94 Circuit Diagrams and PWB Layouts EM5A NTSC CRT / Auto SCAVEM Panel 2 (34” Toshiba CRT) 1483 E8 2430 B2 2437 B4 3411 B5 3421 C3 3427 C8 3451 B2 3458 B5 3474 D3 6402 C6 6411 D4 7426 E5...
  • Page 95 Circuit Diagrams and PWB Layouts EM5A NTSC Layout CRT / Auto SCAVEM Panel 2 (Top Side) 0031 0033 0035 1237 1298 1424 1434 1435 1483 1940 2313 2317 2319 2324 2338 2339 2340 2347 2357 2358 2403 2404 2405...
  • Page 96 Circuit Diagrams and PWB Layouts EM5A NTSC Layout CRT / Auto SCAVEM Panel 2 (Bottom Side) 2301 3529 2302 3531 2303 3532 2312 3533 2318 3534 2341 3535 2342 3536 2348 3537 2359 3538 2407 3539 2408 3540 2409...
  • Page 97 Circuit Diagrams and PWB Layouts EM5A NTSC DC Shift Panel Personal Notes: DC-SHIFT 317 B1 318 A1 1430 A3 2430 B3 2431 B4 2493 B2 1430 5430 A3 5493 B2 400mA N.C. 6430 B3 6431 B4 9493 6432 B3...
  • Page 98 Circuit Diagrams and PWB Layouts EM5A NTSC VDAF Panel + 2nd Orders 1417 E1 7818 C2 1418 D1 7820 C3 VDAF -VERTICAL DAF- 1419 F1 7821 C3 3809 11V DC 1490 C8 7822 C5 2ND ORDERS 1491 E9 7823 C5...
  • Page 99 Circuit Diagrams and PWB Layouts EM5A NTSC Layout VDAF Panel (Top Side) Layout VDAF Panel (Bottom Side) 1417 1418 2818 1419 3818 1490 3819 1491 3820 1492 3821 1497 3822 1693 3823 2800 3824 2803 3826 2809 3827 2812...
  • Page 100 Circuit Diagrams and PWB Layouts EM5A NTSC HD Jack Panel Control 2101 B2 2102 C7 CONTROL JACK-HIGH DEFINITION INTERFACE 2103 B2 2104 D7 2105 C2 2107 C2 2109 C2 SWITCH-IC 2111 D2 2113 E5 IO-3 2115 F2 IO-5 9100...
  • Page 101 Circuit Diagrams and PWB Layouts EM5A NTSC HD Jack Panel Inputs/Outputs 1104 B13 3952 I6 1304 A13 3953 I6 INPUTS/OUTPUTS JACK-HIGH DEFINITION INTERFACE 1680 E13 3954 I6 1901 A1 3955 H4 1902 C1 3956 G5 1903 B1 3957 G6...
  • Page 102 Circuit Diagrams and PWB Layouts EM5A NTSC HD Jack Panel Sync Slicer HD Jack Panel Matrix 2700 A3 2705 B2 2715 D3 3705 C1 3718 D3 7750-A B2 9702 E3 2400 A4 2701 A1 2706 C1 3701 B4 3707 B1...
  • Page 103 Circuit Diagrams and PWB Layouts EM5A NTSC Layout HD Jack Panel (Top Side) Layout HD Jack Panel (Bottom Side) 1104 2400 1304 2403 1680 2404 1990 2703 1991 2704 1992 2705 1993 2706 1994 2713 2101 2714 2102 2715...
  • Page 104 Circuit Diagrams and PWB Layouts EM5A NTSC Side I/O Panel 1326-A C1 1326-B C1 SIDE I/O 1326-C D1 +8V6 1327 E2 1328 B1 3845 3847 c/ 16/9 1333 A9 1344 F9 1333 1346 E9 EH-B 1800 E2 16/9 2807...
  • Page 105 Circuit Diagrams and PWB Layouts EM5A NTSC Layout Side I/O Panel (Top Side) Layout Side I/O Panel (Bottom Side) 1326 2803 1327 2804 1328 2805 1333 2806 1344 2807 1346 2810 1936 2832 2811 2834 2813 2840 3802 2841...
  • Page 106 Circuit Diagrams and PWB Layouts EM5A NTSC Top Control Panel Top Control Panel (Top Side) 0345 A4 1703 D3 3002 E1 3006 E2 3010 D3 3999 D4 4004 E3 0346 B4 1704 D3 3003 E1 3007 E2 3011 E3...
  • Page 107 Circuit Diagrams and PWB Layouts EM5A NTSC Auto SCAVEM Panel 1440 L17 6000 C10 1940 B4 7000 B7 1955 E4 7002 C7 1956 D4 7003 I5 2000 B8 7004 D7 AUTOSCAVEM 2002 C8 7005 K5 2003 C9 7006 C8...
  • Page 108 Circuit Diagrams and PWB Layouts EM5A NTSC Layout Auto SCAVEM Panel (Top SIde) Layout Auto SCAVEM Panel (Bottom SIde) 2000 2016 2200 2416 2602 3006 3024 3042 3330 2002 2018 2202 2418 2603 3008 3026 3044 3400 2003 2020...
  • Page 109 Electrical Alignments EM5A NTSC EN 109 8. Electrical 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 Start Conditions All alignments Perform all electrical adjustments under the following...
  • Page 110 – Focus 2 (F2) = Dynamic alignment (red wire.) Fixed setting: Pwl + 0% Focus method for Philips 30/32” tube with bleeder gun Luma gain You can recognize a CRT with bleeder gun by its type number: Fixed setting: 1.
  • Page 111 Electrical Alignments EM5A NTSC EN 111 7. After adjustment, ‘Store’ the value. 4. 'Red BL offset': the Black Level can be aligned very precisely here (the default value is 7.) 5. 'Green BL offset': the Black Level can be aligned very Tuner AGC precisely here (the default value is 7.)
  • Page 112 EN 112 EM5A NTSC Electrical Alignments 8.3.5 Geo-Nor (Normal Geometry = Pixel Plus @ 60Hz) 2. Set 'V. shift' to a value of '32.' 3. Connect a voltmeter (V ) between R3624 and “hot” ground. Note: For all geometry alignments, use an external pattern 4.
  • Page 113 Electrical Alignments EM5A NTSC EN 113 8.3.8 Option Settings 8.3.9 Introduction The microprocessor communicates with a large number of I ICs in the set. To ensure good communication and to make digital diagnosis possible, the microprocessor has to know which ICs to address.
  • Page 114 Feature present. Feature not present. Automatic Volume Limiter in user menu. Automatic Volume Limiter not in user menu.. Miscellaneous Tuner type Philips Set with Philips tuner. Alps Set with Alps tuner. Opt. no. Group 1 Group 1 option code overview.
  • Page 115 6384 = On (EU) Integrated RC 0 = Off 32768 = On (EU) China IF 0 = Off Sum OB4 4 = On (AP-PAL) Tuner 0 = UV3161 (Philips) 8 = TEDE9 (Alps) DVD-door lock 0 = Off (AP-PAL) 8192 = On...
  • Page 116 EN 116 EM5A NTSC Electrical Alignments Table 8-7 Option bytes Group 2 Option name Settings(in decimal values) Auto Store Mode 0 = None (AP/USA) Sum OB5 2 = PDC/VPS 4 = TXT Page 6 = PDC/VPS/TXT Page 2CS Korea...
  • Page 117 Circuit Descriptions and Abbreviation List EM5A NTSC EN 117 9. Circuit Descriptions and Abbreviation List Index of this chapter 1. Introduction 2. Block diagram 3. Power supply 4. Control 5. Tuner & IF 6. Video: HD jack interface 7. Video: High-end Input Processor 8.
  • Page 118 EN 118 EM5A NTSC Circuit Descriptions and Abbreviation List Block Diagram PIP/DW MODULE TUNER BOCMA PIP/DW FILTER PROC. YUV50 UV13XX TDA932X SAA4978 TDA9178 TDA933X FRAMEDRIVE+ TUNER PICNIC TOPIC VERT FRAMEDRIVE- F-TYPE FILTER SYNC COMB D100 D100 HORZ FILTER VIDEO...
  • Page 119 Circuit Descriptions and Abbreviation List EM5A NTSC EN 119 The RGB amplifiers on the CRT-panel are supplied with 200 V lead to a damaged coil. When ignited, the current will be from the LOT. discharged via this spark gap.
  • Page 120 EN 120 EM5A NTSC Circuit Descriptions and Abbreviation List Implementation Power On Reset (POR) 2V5B 3V3_FBX COLD 20 ms 3120 5102 6103 5100/5101 -13V 2101 6111 +5V2 3748 3751 3103 3752 2104 .6 µP RESET 2114 7708 GND-STB 3110...
  • Page 121 Circuit Descriptions and Abbreviation List EM5A NTSC EN 121 voltage will decay. The maximum primary current set by R3108//3118 determines the maximum load. Vg-Q1 8V6 Stabilization and Feedback In general, with a fly-back supply with multiple output, as used...
  • Page 122 EN 122 EM5A NTSC Circuit Descriptions and Abbreviation List The +33V is the tuning voltage for the Tuner. The sudden current interruption in the primary coil will induce a The +5VT is derived from the +8V with stabilizer 7912 (see counter-e.m.f.
  • Page 123 Circuit Descriptions and Abbreviation List EM5A NTSC EN 123 When the Main DC voltage will decrease w.r.t. the reference • Error code generation. voltage V , the 'SUP_ENABLE' line will be activated via TS7505, TS7508 and R3559. This will switch 'off' the Main Data Storage supply via TS7529.
  • Page 124 EN 124 EM5A NTSC Circuit Descriptions and Abbreviation List in the picture, it is possible that the AGC setting is wrong. It is • YPbPr with sync on Y. also possible that the AGC-setting is mis-aligned, if the picture •...
  • Page 125 Circuit Descriptions and Abbreviation List EM5A NTSC EN 125 The IO-4, IO-5 control-lines select the sync-inputs of the Video: Feature Box 7 (Diagram B3A, B3B, and HEF4052 (7102.) B3C) In our figure, these control-lines are named SYNC SELECT 2 and SYNC SELECT 1.
  • Page 126 EN 126 EM5A NTSC Circuit Descriptions and Abbreviation List 9.8.2 Block diagram IC 7717 IC 7718 IC 7714 MEM 2 SAA4992 MS81V04160 MEM1 100Hz IC 7719 FALCONIC MEM 3 SCAN IC 7722 IC 7723 MEM 5 MEM 4 IC 7724...
  • Page 127 • Dynamic Contrast. To make the contrast (black/white) gain=0 range wider, Philips has invented Dynamic Contrast. It gain=8 uses the digital memory used in 100 Hz sets. It measures every A-field (25 x per second), and digitally analyses gain=31 where on the grayscale most of the image is located.
  • Page 128 EN 128 EM5A NTSC Circuit Descriptions and Abbreviation List The principle for vertical LTI is the same as for horizontal LTI. The shift from 525 to 1050 lines is done by means of a scaler. 2700 3700 Y100 With these extra-interpolated samples, it is possible to create 5700 steeper slopes, possibly with 'ears.'...
  • Page 129 Circuit Descriptions and Abbreviation List EM5A NTSC EN 129 9.9.3 OSD/CC Control 9.9.8 Guarding protections On pins 35 to 38, the RGB and fast blanking from the OTC Flash detection (OSD and CC) are inserted. The sync signal V...
  • Page 130: Hop

    EN 130 EM5A NTSC Circuit Descriptions and Abbreviation List 9.11 Synchronization (Diagram B2, B3 & B4) The V pulse from the PICNIC is inverted by TS7304 to the D100 signal. The OTC is synchronized on the HFB pulse from the...
  • Page 131 Circuit Descriptions and Abbreviation List EM5A NTSC EN 131 When switching off, the same procedure is followed, but in 9.12.3 Corrections reverse order. Several corrections are necessary to obtain a proper picture. 9.12.2 Implementation Linearity Correction To explain the operation of the line output stage, we use the...
  • Page 132 EN 132 EM5A NTSC Circuit Descriptions and Abbreviation List This coil (L5422) consists of a transformer with the following 9.13.2 Flyback Generator properties: As the current through the coil 1-2 increases (smaller picture The frame output stage is supplied via the +13 V and -15 V width), the current through coil 3-4 decreases.
  • Page 133 Circuit Descriptions and Abbreviation List EM5A NTSC EN 133 9.14 Audio (Diagram B6, B10, and A6) • Volume control is performed by the user via the SOUND menu. • Tone control in 'Stereo' sets is performed via the BASS/ 9.14.1 Introduction...
  • Page 134: Headphone Amplifier

    EN 134 EM5A NTSC Circuit Descriptions and Abbreviation List The supply voltage is a symmetrical voltage of +/- 16 V (or +/- 9.16 CRT Panel / Rotation 19 V, depending on the set execution), generated by the main supply via L5512 (or L5506.) 9.16.1 RGB Amplifiers (Diagram F1)
  • Page 135 Circuit Descriptions and Abbreviation List EM5A NTSC EN 135 9.17.2 Normal Scavem Matrix and Differentiator MATRIX DIFFERENTIATOR Differen- Output +12S Matrix Coring tiator stage coil 11V8 7012 BFS20 2008 8V 7 BF824 coil 7008 7006 7010 BFS20 Y_SCAVEM BFS20...
  • Page 136 EN 136 EM5A NTSC Circuit Descriptions and Abbreviation List Parabola Generation(optional) Final Amplifier (Diagram F2) DAC3 3414 3415 PARABOLA GENERATION +12V +12S 3410 3473 3472 3448 3485 2420 2428 7414 7412 3494 3492 11V9 2425 7427 6412 6414 3204...
  • Page 137 Circuit Descriptions and Abbreviation List EM5A NTSC EN 137 applied horizontal and vertical syncs from the main and sub pictures. The main picture syncs are applied to pin 70 (vert.) and pin 94 (hor.) and the sub picture syncs are applied to pin 72 (vert.) and pin 87 (hor..)
  • Page 138: Crt

    EN 138 EM5A NTSC Circuit Descriptions and Abbreviation List • Auto Color. This is saturation control with color features Aspect Ratio: 4 by 3 or 16 by 9 (TOPIC/Eagle.) Artistic See OTC 2.5: main processor Auto Screen Fit: algorithm that adapts...
  • Page 139 Circuit Descriptions and Abbreviation List EM5A NTSC EN 139 FBSCO Fixed Beam Current Switch Off, a 140 Random Access Memory V dip detection to activate the black R-TXT Red TeleteXT switch off circuit Remote Control Feature BoX: part of the small signal...
  • Page 140: Ic Data Sheets

    EN 140 EM5A NTSC Circuit Descriptions and Abbreviation List 9.21 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.) 9.21.1 Diagram B3C, T8F24EF (IC7724)
  • Page 141: Spare Parts List

    Spare Parts List EM5A NTSC EN 141 10. Spare Parts List Large Signal Panel [A] 2104 4822 123 14025 2200µF 20% 16V 2466 2238 586 59812 100nF +80/-20% 50V 0603 2105 2020 552 94427 0603 50V 100P 5% 2468...
  • Page 142 EN 142 EM5A NTSC Spare Parts List 2709 4822 126 13881 470pF 5% 50V 3441 4822 051 30223 22kΩ 5% 0.062W 3442 4822 051 30474 470kΩ 5% 0.062W 2710 4822 126 13881 470pF 5% 50V 2711 3198 016 31020 0603 25V 1nF 3443 4822 051 30684 680kΩ...
  • Page 143 Spare Parts List EM5A NTSC EN 143 3545 4822 116 52244 15k 5% 0.5W 3710 4822 051 30223 22k 5% 0.062W 3984 4822 051 30151 150Ω 5% 0.062W 3711 4822 050 11204 120k 1% 0.4W 3985 4822 051 30181 180Ω 5% 0.062W 3546 4822 050 21003 10k 1% 0.6W...
  • Page 144 EN 144 EM5A NTSC Spare Parts List 6623 4822 130 11397 BAS316 1406 2422 549 44043 Filter SMD 4.5MHz 6624 4822 130 11397 BAS316 TPSCC*MB 6625 4822 130 11397 BAS316 1410 2422 549 44377 Filter SAW 45.75MHz 6626 4822 130 11397 BAS316...
  • Page 145 Spare Parts List EM5A NTSC EN 145 2368 2238 586 59812 100nF +80/-20% 50V 0603 2602 2020 552 96448 16V 1µF 10% 2750 2238 586 59812 100nF +80/-20% 50V 0603 2603 2020 552 96448 16V 1µF 10% 2751 2238 586 59812 100nF +80/-20% 50V 0603...
  • Page 146 EN 146 EM5A NTSC Spare Parts List 2860 2238 586 59812 100nF +80/-20% 50V 0603 3078 3198 031 14710 4 X 470Ω 5% 1206 3408 4822 051 30101 100Ω 5% 0.062W 3079 4822 051 30472 4k7 5% 0.062W 3412 4822 051 30102 1k 5% 0.062W...
  • Page 147 Spare Parts List EM5A NTSC EN 147 3614 4822 117 12925 47k 1% 0.063W 0603 3758 4822 051 30472 4k7 5% 0.062W 5671 4822 157 11716 Bead 30Ω @ 100MHz 3759 4822 051 30221 220Ω 5% 0.062W 3615 4822 117 12925 47k 1% 0.063W 0603 5672 4822 157 11716 Bead 30Ω...
  • Page 148 EN 148 EM5A NTSC Spare Parts List 7007 9322 157 20668 MSM51V18165F-60J 1327 4822 242 10694 Reson. 12MHz 2824 2238 586 59812 100nF +80/-20% 50V 0603 2825 5322 122 33538 150pF 2% 63V 7008 3198 010 42310 BC847BW 1334 2422 549 44043 Filter SMD 4.5MHz TPSCC...
  • Page 149 Spare Parts List EM5A NTSC EN 149 3381 4822 117 11373 100Ω 1% 0805 3872 4822 051 30471 470Ω 5% 0.062W 7892 3198 010 42310 BC847BW 3873 4822 051 30152 1k5 5% 0.062W 3382 4822 117 11373 100Ω 1% 0805...
  • Page 150 EN 150 EM5A NTSC Spare Parts List 3008 4822 051 30121 120Ω 5% 0.062W 5022 4822 157 11506 Bead 120Ω @ 100MHz 3998 4822 116 52206 120Ω 5% 0.5W 3009 4822 051 30331 330Ω 5% 0.062W 5024 4822 157 11506 Bead 120Ω @ 100MHz 3998 4822 116 52213 180Ω...
  • Page 151 Spare Parts List EM5A NTSC EN 151 3410 4822 117 12968 820Ω 5% 0.62W 6303 9340 553 52115 BAS321 2824 4822 124 40248 10µF 20% 63V 3411 4822 117 13632 100k 1% 0603 0.62W 6305 9340 553 52115 BAS321 2825 4822 121 51319 1µF 10% 63V...
  • Page 152 EN 152 EM5A NTSC Spare Parts List 2133 2238 586 59812 100nF +80/-20% 50V 0603 3415 2322 704 66201 0603 620Ω 1% 6915 4822 130 11416 PDZ6.8B 2134 4822 126 11785 47pF 5% 50V 0603 3416 5322 117 13018 1k0 1% 0.063W 0603 6916 4822 130 11416 PDZ6.8B...
  • Page 153 Spare Parts List EM5A NTSC EN 153 6802 9322 129 38685 BZM55-C6V8 3074 4822 051 30101 100Ω 5% 0.062W 6803 9322 129 40685 BZM55-C10 3076 4822 117 11817 1k2 1% 1/16W 6804 9322 129 40685 BZM55-C10 3078 4822 051 30102 1k 5% 0.062W...

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