Philips EM5.3E AA Service Manual

Colour Television Chassis

EM5.3E

CL 36532017_000.eps

240403

Contents Page Contents Page

1. Technical Specifications, Connections, and Chassis Overview 2

2. Safety and Maintenance Instructions, Warnings, and Notes 5

3. Directions for Use 7

4. Mechanical Instructions 8

5. Service Modes, Error Codes, and Faultfinding 12

6. Block Diagrams, Test Point Overview,

and Waveforms

Wiring Diagram 23 Block Diagram Supply and Deflection 24 Testpoint Overview LSP and CRT Panel 25 Block Diagram Video 26 Testpoint Overview SSB 27 Block Diagram Audio 1 (excl. Wireless Audio Details) 28

C-IC Overview 29

Supply Lines Overview 30

7. Electrical Diagrams and PWB’s Diagram PWB Main Supply (Diagram A1) 31 40-46 Stand-by Supply (Diagram A2) 32 40-46 Line Deflection (Diagram A3) 33 40-46 Frame Deflection & E/W Drive (Diagram A4) 34 40-46 Rotation Circuitry (Diagram A5) 35 40-46 Audio Amplifier (Diagram A6) 36 40-46 Tuner SIMM connector (Female) (Diagram A8) 37 40-46 Receiver (Diagram A9) 38 40-46 Front (Diagram A10)38 40-46 Inputs/Outputs (Diagram A11)39 40-46 SIMM connector (Male) (Diagram B1) 47 59-64 IF, I/O Videoprocessing (Diagram B2) 48 59-64 PICNIC (Diagram B3A)49 59-64 Falconic (FEM) (Diagram B3B)50 59-64 Eagle (Diagram B3C)51 59-64

Copyright 2004 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.

Columbus (Diagram B3D)52 59-64 FBX Supply (Diagram B3E)53 59-64 HOP (Diagram B4) 54 59-64 OTC (Diagram B5) 55 59-64 Audio Demodulator (Diagram B6) 56 59-64 Anti Moiré (Diagram B9) 57 59-64 Headphone Amplifier (Diagram B10)58 59-64 Side I/O Panel (Diagram D) 65 66 Top Control Panel (Diagram E) 67 68 CRT Panel (Diagram F1) 69 70 DC Shift Panel (Diagram G) 71 71 I/O 3rd SCART Panel (Diagram H) 72 73 VDAF + 2nd Orders Panel (Diagram I) 74 75 Mains Switch Panel (Diagram J) 76 77 Auto SCAVEM (Diagram SC1)78 80 Auto SCAVEM PCR (Diagram SC3)79 80

8. Alignments 81

9. Circuit Description 88 Abbreviation List 94 IC Data Sheets 96

10 Spare Parts List 99 11 Revision List 109

Published by WO 0464 Service PaCE Printed in the Netherlands Subject to modification EN 3122 785 14600

EN 2 EM5.3E1.

Technical Specifications, Connection, and Chassis Overview

1. Technical Specifications, Connection, and Chassis Overview

Index of this chapter:

1. Technical Specifications

2. Connection Overview

3. Chassis Overview

Note: Figures below can deviate slightly from the actual situation, due to the different set executions.

1.1 Technical Specifications

1.1.1 Vision

Display type : CRT-DV-RF Screen sizes : 28” (70 cm), 16:9

: 32" (82 cm), 16:9 Tuning system : PLL Colour systems : PAL B/G, D/K, I

: SECAM B/G, D/K, L/L’ Video playback : NTSC 3.58

: NTSC 4.43

: NTSC Play Back Channel selections : 100 presets

: UHF

: VHF

: Hyper-band

: S-band Aerial input : 75 ohm, Coax

: IEC-type

1.2 Connection Overview

Note: The following connector color 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 Top Control and Front / Side Connections

TOP CONTROL

TRANSMITTER

PROXIMITY

SENSOR

(OPTIONAL)

SENSOR

VOLUME-+ -

CHANNELMENU

FRONT I/O

BLUE

LED

RED LED

LIGHT

SENSOR

SIDE I/O

1.1.2 Sound

Sound systems : FM/FM B/G, Czech

: NICAM B/G, D/K, I, L Maximum power : 4 x 15 W rms (int.)

1.1.3 Miscellaneous

Mains voltage : 220 - 240 V_ac Mains frequency : 50 / 60 Hz Ambient temperature : +5 to +45 deg. C Maximum humidity : 90 % R.H.

Power consumption :

- Normal operation : ≈ 130 W

- Standby : < 1 W

3.5

SVHS

VIDEO

AUDIO R

AUDIO L

E_14600_044.eps

080404

Figure 1-1 Top control and Front / Side connections

S-Video: In

1 - Ground Gnd H 2 - Ground Gnd H 3 - Y 1 V_pp / 75 ohm j 4 - C 0.3 V_pp / 75 ohm j

Cinch: In

Ye -Video-CVBS 1 V_pp / 75 ohm jq Wh - Audio - L 0.5 V_rms / 10 kohm jq Rd - Audio - R 0.5 V_rms / 10 kohm jq

Mini Jack: Headphone - Out

- Headphone 32 - 600 ohm / 10 mW ot

Technical Specifications, Connection, and Chassis Overview

EN 3EM5.3E 1.

1.2.2 Rear Connections

EXT3

AUDIO OUT

SERVICE

CONNECTOR

EXT1

EXT2

E_14600_046.eps

240304

Figure 1-2 Rear view

Aerial - In

- IEC-type Coax, 75 ohm D

Cinch: Audio - Out

Re - Audio - R 0.5 V_rms / 1 kohm kq Wh - Audio - L 0.5 V_rms / 1 kohm kq

External 1: RGB/YUV and CVBS - In/Out

E_06532_001.eps

050404

Figure 1-3 SCART connector

1 - Audio - R 0.5 V_rms / 1 kohm k 2 - Audio - R 0.5 V_rms / 10 kohm j 3 - Audio - L 0.5 V_rms / 1 kohm k 4 - Audio - gnd Ground H 5 - Blue - gnd Ground H 6 - Audio - L 0.5 V_rms / 10 kohm j 7 - Blue/U - in 0.7 V_pp / 75 ohm j 8 - CVBS - status 0 - 2 V: INT

4.5 - 7 V: EXT 16:9

9.5 - 12 V: EXT 4:3 j

9 - Green - gnd Ground H 10 - n.c. 11 - Green/Y - in 0.7 V_pp / 75 ohm j 12 - n.c. 13 - Red - gnd Ground H 14 - FBL - gnd Ground H 15 - Red/V - in 0.7 V_pp / 75 ohm j 16 - Status / FBL 0 - 0.4 V: INT

1 - 3 V: EXT / 75 ohm j 17 - Video Ground H 18 - Video Ground H 19 - CVBS - out 1 V_pp / 75 ohm k 20 - CVBS - in 1 V_pp / 75 ohm j 21 - Shielding Ground H

External 2: CVBS and SVHS - In (for video recorder)

E_06532_001.eps

050404

Figure 1-4 SCART connector

1 - Audio - R 0.5 V_rms / 1 kohm k 2 - Audio - R 0.5 V_rms / 10 kohm j 3 - Audio - L 0.5 V_rms / 1 kohm k 4 - Audio - gnd Ground H 5 - Blue - gnd Ground H 6 - Audio - L 0.5 V_rms / 10 kohm j 7 - C - out 0.7 V_pp / 75 ohm k 8 - CVBS - status 0 - 2 V: INT

4.5 - 7 V: EXT 16:9

9.5 - 12 V: EXT 4:3 j 9 - Green - gnd Ground H 10 - Easylink (P50) j 11 - n.c. 12 - n.c. 13 - Red - gnd Ground H 14 - FBL - gnd Ground H 15 - C - in 0.7 V_pp / 75 ohm j 16 - n.c. 17 - Video Ground H 18 - Video Ground H 19 - CVBS - out 1 V_pp / 75 ohm k 20 - Y / CVBS - in 1 V_pp / 75 ohm j 21 - Shielding Ground H

External 3: RGB and CVBS - In

E_06532_001.eps

050404

Figure 1-5 SCART connector

1-n.c. 2 - Audio - R 0.5 V_rms / 10 kohm j 3-n.c. 4 - Audio - gnd Ground H 5 - Blue - gnd Ground H 6 - Audio - L 0.5 V_rms / 10 kohm j 7 - Blue - in 0.7 V_pp / 75 ohm j 8 - CVBS - status 0 - 1.3 V: INT

4.5 - 7 V: EXT 16:9

9.5 - 12 V: EXT 4:3 j 9 - Green - gnd Ground H 10 - n.c. 11 - Green - in 0.7 V_pp / 75 ohm j 12 - n.c. 13 - Red - gnd Ground H 14 - FBL - gnd Ground H 15 - Red - in 0.7 V_pp / 75 ohm j 16 - Status / FBL 0 - 0.4 V: INT

1 - 3 V: EXT / 75 ohm j 17 - Video Ground H 18 - Video Ground H 19 - n.c. 20 - CVBS - in 1 V_pp / 75 ohm j 21 - Shielding Ground H

EN 4 EM5.3E1.

1.3 Chassis Overview

CRT PANEL

SIDE I/O PANEL

SMALL SIGNAL BOARD

Technical Specifications, Connection, and Chassis Overview

TOP CONTROL PANEL

AUTO-SCAVEM PANEL

I/O 3rd SCART

Figure 1-6 PWB locations

MAINSWITCH PANEL

LARGE SIGNAL PANEL

DC-SHIFT (optional)

DAF PANEL

E_14600_045.eps

240304

Safety and Maintenance Instructions, Warnings, and Notes

2. Safety and Maintenance Instructions, Warnings, and Notes

EN 5EM5.3E 2.

2.1 Safety Instructions

Safety regulations require that during a repair:

• Due to the chassis concept, a very large part of the circuitry (incl. deflection) is “hot”. Therefore, connect the set to the mains via an isolation transformer.

• Replace safety components, indicated by the symbol h, only by components identical to the original ones. Any other component substitution (other than original type) may increase risk of fire or electrical shock hazard.

• Wear safety goggles when you replace the CRT.

Safety regulations require that after a repair, you must return the set in its original condition. Pay, in particular, attention to the following points:

• General repair instruction: as a strict precaution, we advise you to re-solder the solder connections through which the horizontal deflection current is flowing. In particular this is valid for the:

1. Pins of the line output transformer (LOT).

2. Fly-back capacitor(s).

3. S-correction capacitor(s).

4. Line output transistor.

5. Pins of the connector with wires to the deflection coil.

6. Other components through which the deflection current

flows.

Note: This re-soldering is advised to prevent bad connections due to metal fatigue in solder connections, and is therefore only necessary for television sets more than two years old.

• Route the wire trees and EHT cable correctly and secure them with the mounted cable clamps.

• Check the insulation of the mains cord for external damage.

• Check the strain relief of the mains cord for proper function, to prevent the cord from touching the CRT, hot components, or heat sinks.

• Check the electrical DC resistance between the mains plug and the secondary side (only for sets that have an isolated power supply). Do this as follows:

1. Unplug the mains cord and connect a wire between the

two pins of the mains plug.

2. Turn on the main power switch (keep the mains cord

unplugged!).

3. Measure the resistance value between the pins of the

mains plug and the metal shielding of the tuner or the aerial connection of the set. The reading should be between 4.5 Mohm and 12 Mohm.

4. Switch the TV “off” and remove the wire between the

two pins of the mains plug.

• Check the cabinet for defects, to prevent the possibility of the customer touching any internal parts.

2.3 Warnings

• In order to prevent damage to ICs and transistors, avoid all high voltage flashovers. In order to prevent damage to the picture tube, use the method shown in Fig. 2-1, to discharge the picture tube. Use a high voltage probe and a multi-meter (position V_dc). Discharge until the meter reading is 0 V (after approx. 30 s).

Figure 2-1 Discharge picture tube

• All ICs and many other semiconductors are susceptible to electrostatic discharges (ESD, w). Careless handling during repair can reduce life drastically. Make sure that, during repair, you are connected with the same potential as the mass of the set by a wristband with resistance. Keep components and tools also at this potential. Available ESD protection equipment: – Complete kit ESD3 (small tablemat, wristband,

connection box, extension cable and ground cable) 4822 310 10671.

– Wristband tester 4822 344 13999.

• Together with the deflection unit and any multi-pole unit,

flat square picture tubes form an integrated unit. The deflection and the multi-pole units are set optimally at the factory. We do not recommend adjusting this unit during repair.

• Be careful during measurements in the high voltage section and on the picture tube.

• Never replace modules or other components while the unit is “on”.

• When you align the set, use plastic rather than metal tools. This will prevent any short circuits and the danger of a circuit becoming unstable.

E_06532_007.eps

250304

2.2 Maintenance Instructions

We recommend a maintenance inspection carried out by qualified service personnel. The interval depends on the usage 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” noted above.

2. Clean the power supply and deflection circuitry on the

chassis.

3. Clean the picture tube panel and the neck of the picture

tube.

2.4 Notes

2.4.1 General

• Measure the voltages and waveforms with regard to the

chassis (= tuner) ground (H), or hot ground (I), depending on the tested area of circuitry.

• The voltages and waveforms shown in the diagrams are indicative. Measure them in the Service Default Mode (see

chapter 5 “Service Modes, ....”) with a colour bar signal and

stereo sound (L: 3 kHz, R: 1 kHz unless stated otherwise) and picture carrier at 475.25 MHz for PAL, or 61.25 MHz for NTSC (channel 3).

• Where necessary, measure the waveforms and voltages with (D) and without (E) aerial signal. Measure the voltages in the power supply section both in normal operation (G) and in standby (F). These values are indicated by means of the appropriate symbols.

EN 6 EM5.3E2.

Safety and Maintenance Instructions, Warnings, and Notes

• 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 the parts lists, are interchangeable per position with the semiconductors in the unit, irrespective of the type indication on these semiconductors.

• Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic” and the “double-D symbol”, are trademarks of Dolby Laboratories.

Figure 2-2 Dolby PL Symbol

2.4.2 Schematic Notes

• All resistor values are in ohms and the value multiplier is often used to indicate the decimal point location (e.g. 2K2 indicates 2.2 kohm).

• Resistor values with no multiplier may be indicated with either an "E" or an "R" (e.g. 220E or 220R indicates 220 ohm).

• All capacitor values are expressed in micro-farads (µ= x 10^-6), nano-farads (n= x 10^-9), or pico-farads (p= x 10^-

12).

• Capacitor values may also use the value multiplier as the decimal point indication (e.g. 2p2 indicates 2.2 pF).

• An "asterisk" (*) indicates component usage varies. Refer to the diversity tables for the correct values.

• The correct component values are listed in the Electrical Replacement Parts List. Therefore, always check this list when there is any doubt.

Device Replacement

The last step in the repair process is to solder the new component on the board. Ideally, the (LF)BGA should be aligned under a microscope or magnifying glass. If this is not possible, try to align the (LF)BGA with any board markers. To reflow the solder, apply a temperature profile according to the IC data sheet. So as not to damage neighbouring components, it may be necessary to reduce some temperatures and times.

More Information

For more information on how to handle BGA devices, visit this URL:

http://www.atyourservice-magazine.com/ workshop.shtml?v=main=en (only accessible for dealers with

subscription)

2.4.3 Rework on BGA (Ball Grid Array) ICs

General

Although (LF)BGA assembly yields are very high, there may still be a requirement for component rework. By rework, we mean the process of removing the component from the PWB and replacing it with a new component. If an (LF)BGA is removed from a PWB, the solder balls of the component are deformed drastically so the removed (LF)BGA has to be discarded.

Device Removal

As is the case with any component that, it is essential when removing an (LF)BGA, the board, tracks, solder lands, or surrounding components are not damaged. To remove an (LF)BGA, the board must be uniformly heated to a temperature close to the reflow soldering temperature. A uniform temperature reduces the chance of warping the PWB. To do this, we recommend that the board is heated until it is certain that all the joints are molten. Then carefully pull the component off the board with a vacuum nozzle. For the appropriate temperature profiles, see the IC data sheet.

Area Preparation

When the component has been removed, the vacant IC area must be cleaned before replacing the (LF)BGA. Removing an IC often leaves varying amounts of solder on the mounting lands. This excessive solder can be removed with either a solder sucker or solder wick. The remaining flux can be removed with a brush and cleaning agent. After the board is properly cleaned and inspected, apply flux on the solder lands and on the connection balls of the (LF)BGA. Note: Do not apply solder paste, as this has shown to result in problems during re-soldering.

3. Directions for Use

You can download this information from the following website:

http://www.philips.com/support

1. Click on “Downloads and Troubleshooting” [1].

2. Fill in the TV model/type number in the field “Which Model/

Type?” [2] and click on “Search” [3]. Note: The correct model/typenumber can be found on the rear cover of the set. If you do not have the complete model/typenumber, just fill in e.g. “32PW95” or “PW95” (do not use wildcards).

3. When results are returned, click on the desired model/ typenumber under “Model” [4].

4. Now, click on the “Owner's manual” [5] in the desired language. To read/open the PDF files you can download and install the free Acrobat Reader

http://www.adobe.com/products/acrobat/readstep2.html

Directions for Use

EN 7EM5.3E 3.

Figure 3-1 Screenshot DFU website (1)

E_06532_015.eps

050404

Figure 3-2 Screenshot DFU website (2)

E_06532_016.eps

050404

EN 8 EM5.3E4.

Mechanical Instructions

4. Mechanical Instructions

Index of this chapter:

1. Service connector

2. Set Disassembly

3. Service Positions

4. Assies / Panels Removal

5. Set Reassembly

Note: figures below can deviate slightly from the actual situation, due to the different set executions.

4.1 Service Connector (for ComPair)

For service diagnostics with ComPair, it is not necessary to disassemble the set. You only have to connect the ComPair interface box via the appropriate cable, to the service connector on the rear of the set (see figure "Rear connections" in chapter "Technical specifications, ..."), and start the program

(see also chapter "Service Modes .... ").

4.2 Set Disassembly

Follow the disassemble instructions in described order.

4.2.1 Rear Cover Removal

Warning: disconnect the mains power cord before you remove

the rear cover.

1. Remove all screws. If you do not remove them, you cannot access the clips.

2. Tilt the set a little forward, so that you can release the two clickfit clamps that are located at the bottomplate of the set.

3. Four openings (1) can be found at the top (32” sets). The openings are very small (2). Note: 28” sets only have the two openings.

4. Underneath every opening there is a clip. Push this clip down with a very thin piece of metal (3), until you hear a click. Caution: do not use a screwdriver, this will damage the cabinet.

5. When all four clips are pushed down, the back cover can be removed a little (15 cm).

6. Before completely removing the back cover, the cable of the top control must be disconnected from the side I/O panel, otherwise damage can occur.

7. When reassembling the set, take care not to forget to connect the cable again.

E_13950_012 .eps

Figure 4-2 Opening

E_13950_013.eps

Figure 4-3 Pushing clips down

Figure 4-1 Rear cover (for FL13B styling)

E_13950_011 .eps

050404

Mechanical Instructions

EN 9EM5.3E 4.

4.3 Service Positions

This chassis has several predefined service positions, for better accessibility. They are explained below in more detail.

4.3.1 Solder Side 'I/O 3rd SCART' panel

1680

Figure 4-4 Service position 1

To remove or access the 'I/O 3rd SCART' panel, do the following:

1. Remove the fixation screw (1) (if present).

2. Release the two pegs (2).

3. At the same time, pull the complete module away from the

LSP bracket (3). It hinges in the LSP bracket.

4. To remove the panel, disconnect the flat-cables, and remove the four panel screws (4).

E_14950_018.eps

240304

4.3.3 Solder Side LSP

1502

4.3.2 Component Side LSP

SSB top-bracket

SSB

AUTO-SCAVEM

bracket

CONNECTOR SUPPORT

bracket

Bottom tray

LOT - bracket

LSP

Figure 4-5 Service position 2

For better accessibility of the LSP, do the following (see figure above):

1. Remove the LSP-bracket from the bottom tray by pulling it backwards.

2. Hook the bracket in the first row of fixation holes of the bottom tray. In other words, reposition the bracket from (1) to (2).

CL 26532041_065.eps

110402

Figure 4-6 Service position 3

To get access to the bottom side (solder side) of the LSP, do the following (see figure above):

1. Remove the DAF-module (see paragraph 'DAF Assy/ Panel' below).

2. The 3 pin cable of side IO must be disconnected or complete side IO assy released from its hooks.

3. To disconnect the degaussing coil from the LSP, remove the cable from connector 1502 (1).

4. Release the wiring from their fixation clamps, in order to get room for repositioning the LSP.

5. Flip the LSP 90 degrees clockwise (2), and place it in the fixation hole at the left side of the bottom tray (3).

4.3.4 Small Signal Board (SSB)

Caution:

Always switch the set completely “OFF” (disconnected the mains cord) before you remove or replace the SSB. As the 5V2 standby voltage is always present (while the set is switched “ON”, in “standby” or in “Protection” mode) on the SIMM connector, it is very risky to remove the SSB in this situation, because the risk of short circuiting is very great.

In fact, there is no predefined service position for the SSB. Most test points are located on the A-side (side that is facing the tuner). If you have to replace ICs, you must take the complete SSB module out of the SIMM-connector. Note: For good access to the A-side, it is necessary to remove the Auto-Scavem assy (at the left side of the SSB). See description in paragraph “Auto-SCAVEM Assy/Panel” below.

To get access to the SSB test points, do the following:

CL 26532041_066.eps

110402

EN 10 EM5.3E4.

Mechanical Instructions

CL 26532041_067.eps

110402

Figure 4-7 SSB removal (part 1)

1. Put the LSP in service position 2 (as described above).

2. Release the two clamps at the top of the SSB bracket (1)

and pull the bracket upward (2) (it hinges in the bracket at the LOT side).

3. Now you can remove the complete SSB bracket.

SSB

SAM SDM

SSB

Figure 4-9 SSB removal (part 3)

1. Once you have taken out the SSB, remove the shieldings (2). Sometimes it is necessary to unsolder some soldertags first (1).

2. Now re-place the SSB module in the SIMM-connector in reverse order.

Notes:

• For better access to the SSB, it is possible to order an 'extension tool' under number 9965 000 14526.

• If necessary for the measurement, you can put the LSP in “Service position 2” (as described above).

CL 26532041_069.eps

110402

CL 26532041_068.eps

110402

Figure 4-8 SSB removal (part 2)

1. Push the top of the SSB towards the LOT (1).

2. Due to the pressure, the two metal clamps at both sides of

the SIMM-connector will release (2).

3. Take the complete SSB out (3).

4.4 Assies/Panels Removal

Sometimes, it can be necessary to swap a complete assy or Printed Wiring Board (PWB). How that can be done is explained below.

4.4.1 Top Control Assy/Panel

Notes:

• PV02 styling: assy is mounted in the front cabinet;

• FL13B styling: assy is mounted in the rear cover.

1. Remove the two fixation screws.

2. Push the assy a little bit upwards, and then pull it

backwards to release it from the front hinge.

3. Lift the panel from its bracket, while releasing the four fixation clamps.

Mechanical Instructions

EN 11EM5.3E 4.

4.4.2 Side-I/O Assy/Panel

Figure 4-10 Side I/O Assy/Panel

1. Release the snap-hook (1) with your finger.

2. At the same time, pull the assy backwards (2).

3. Release the two fixation clamps on the right side of the

bracket (the panel hinges at the left side).

4. Remove the panel from the bracket (3).

4.4.3 Mains Switch Assy/Panel

Figure 4-11 Mains Switch Assy/Panel

1. Release the two fixation clamps (rather difficult to reach), by pushing them upwards (1). At the same time, pull the complete assy backwards (2). Note: be aware that the degaussing coil can hamper this.

2. Release the two fixation clamps on the two sides of the bracket (the panel hinges at the connector side).

3. Remove the panel from the bracket.

4. When the light guide (sitting in the cabinet, in front of the

LEDs) is defective, you can replace it by pushing it forwards at the left side (it hinges at the right side, seen from the rear).

4.4.4 DAF Assy/Panel

CL 16532149_069.eps

061201

CL 16532149_070.eps

061201

1. Remove the fixation screw (1) (if present).

2. Push down the fixation clamp (2), and pull the complete

bracket at the same time away from the CRT (3). The module is now free from the LSP-bracket.

3. Release the fixation clamps (4), in order to remove the panel from its bracket.

4.4.5 Auto-SCAVEM Assy/Panel

This panel is placed on the left side of the SSB (See figure 'Service Position 2'). Because most of its components are placed on the bottom side, you must lift the panel from its bracket before you can measure it.

1. Therefore, release the two fixation clamps at the top.

2. Lift the panel from the bracket (it hinges at the bottom).

To remove the bracket:

1. First, remove the panel from the bracket, as described above.

2. Remove the SSB bracket (see paragraph “Small Signal Board (SSB)” above).

3. Remove the two fixation screws at the bottom.

4. Lift the Auto-Scavem bracket slightly up, and at the same

time bend the top a little away from the tuner.

5. Now, push the bracket into the direction of the CRT, and lift it out of the LSP-bracket.

4.4.6 Large Signal Panel (LSP)

1. Remove the “I/O 3rd SCART” assy (see paragraph “I/O 3rd SCART” above).

2. Remove the DAF assy (see paragraph “DAF Assy/Panel” above).

3. Remove the SSB bracket and the SSB (see paragraph “Small Signal Board (SSB)'”above).

4. Remove the Auto-SCAVEM bracket (see paragraph “AutoSCAVEM assy/panel” above).

5. Remove the two fixation screws at the bottom by the LOT bracket. Lift the LOT bracket from the right side slightly up, and at the same time release it from the fastening at the top, and remove the LOT bracket.

6. Disconnect the necessary cables.

7. Remove the two fixation screws. One screw is located

nearby the SIMM-connector and the second screw is located nearby the degaussing coil.

8. Release the fixation clamps on the left side and on the topside of the LSP-bracket (the panel hinges at the right side).

9. Remove the panel from the bracket.

4.5 Set Re-assembly

To re-assemble the whole set, do all processes in reverse order.

Note: be sure that, before the rear cover is mounted:

• The mains cord is mounted correctly in its guiding brackets.

• All wires/cables are returned in their original positions. This

is very important due to the large “hot” area of the set

Figure 4-12 DAF-module

CL 16532044_011.eps

150501

EN 12 EM5.3E5.

Service Modes, Error Codes, and Fault Finding

5. Service Modes, Error Codes, and Fault Finding

Index of this chapter:

1. Test points

2. Service Modes

3. Problems and solving tips (related to CSM)

4. ComPair

5. Error Codes

6. The blinking LED procedure

7. Protections

8. Repair tips

5.1 Test Points

The chassis is equipped with test points printed on the circuit board assemblies. They refer to the diagram letters.

Perform measurements under the following conditions:

• Service Default Mode.

• Video: colour bar signal.

• Audio: 3 kHz left, 1 kHz right.

5.2 Service Modes

Service Default Mode (SDM) and Service Alignment Mode (SAM) offer several features for the service technician, while the Customer Service Mode (CSM) is used for communication between a Philips Customer Care Centre (P3C) and a customer.

There is also the option of using ComPair, a hardware interface between a computer (see requirements below) and the TV chassis. It offers the ability of structured troubleshooting, test pattern generation, error code reading, software version readout, and software upgrading. Minimum requirements: a Pentium processor, Windows 95/ 98, and a CD-ROM drive (see also paragraph "ComPair").

Note: In this chassis, two LED configurations are possible: with bicoloured LED (red/green) or with separate blue and red LEDs. The bicoloured version is the one we know from EM5E. The version with blue LED works slightly different. The blue LED is controlled by software (via ON_OFF_LED). The red LED will light in anti-phase to the blue one, but with a time delay. This means that if the blue LED is blinking fast, the red LED will stay off. But after the blue LED is "OFF" long enough, the red LED will go "ON". So take care: In certain service modes (e.g. blinking LED, stepwise start-up, etc.) you must observe the blue LED and ignore the red LED.

5.2.1 Service Default Mode (SDM)

Purpose

• To create a pre-defined setting, to get the same measurement results as given in this manual.

• To override SW protections.

• To start the blinking LED procedure.

Specifications

• Tuning frequency: 475.25 MHz for PAL/SECAM.

• Colour system: SECAM L for France or PAL B/G for the

rest of Europe.

• All picture settings at 50 % (brightness, colour, contrast).

• All sound settings at 50 %, except volume at 25 %.

• All service-unfriendly modes (if present) are disabled, like: – (Sleep) timer. – Child/parental lock. – Blue mute. – Automatic volume limiter (AVL).

– Auto switch-off (when no video signal was received for

10 minutes).

– Skip/blank of non-favourite pre-sets. – Smart modes. – Auto store of personal presets. – Auto user menu time-out.

How to enter SDM

• Use one of the following methods:

• Use the standard RC-transmitter and key in the code

"062596", directly followed by the "MENU" button. Note: It is possible that, together with the SDM, the main menu will appear. To switch it off, push the "MENU" button again.

• When you shorten for a moment the two solder pads on the 'external part' of the SSB print, with the indication "SDM". Activation can be performed in all modes, except when the set has a problem with the main-processor. Caution: If the SDM is entered via the pins, all the software-controlled protections are de-activated.

• Use the DST-emulation feature of ComPair.

• Use the "DEFAULT" button on the Dealer Service Tool

(RC7150).

After entering this mode, "SDM" will appear in the upper right corner of the screen.

How to navigate

When you press the "MENU" button on the RC transmitter, the set will toggle between the SDM and the normal user menu (with the SDM mode still active in the background).

How to exit SDM

Use one of the following methods:

• Switch the set to STANDBY via the RC-transmitter.

• Press the "EXIT" button on the DST.

• Via a standard customer RC-transmitter: key in "00"-

sequence.

5.2.2 Service Alignment Mode (SAM)

Purpose

• To perform (software) alignments.

• To change option settings.

• To easily identify the used software version.

• To view operation hours.

• To display (or clear) the error code buffer.

Specifications

• Operation hours counter.

• Software version.

• Option settings.

• Error buffer reading and erasing.

• Software alignments.

How to enter SAM

Use one of the following methods:

• Via a standard RC transmitter: key in the code "062596" directly followed by the "OSD [i+]" button. After activating SAM with this method a service warning will appear on the screen, you can continue by pressing any digit key on the RC.

• Short for a moment the two solder pads on the 'external part' of the SSB print, with the indication SAM. Depending on the software version it is possible that the service warning will appear, you can continue by pressing any digit key on the RC.

• Use the DST-emulation feature of ComPair.

• Press the ALIGN button on the DST while the set is in the

normal operation

Service Modes, Error Codes, and Fault Finding

After entering this mode, "SAM" will appear in the upper right corner of the screen.

Contents of SAM:

• OPERATION HOURS. Displays the accumulated total of

operation hours (not the standby hours).

• HARDWARE INFO – ROM VERSION. Displays the date of the software and

the software version of the ROM (example: EM53EU1-

1.0_01234 = AAABBC-X.Y_NNNNN).

• AAA= the chassis name.

• BB= the region: EU= Europe, AP= Asia Pacific

PAL/Multi, AN= Asia Pacific NTSC, US= USA, LT= LATAM.

• C= the language cluster number.

• X.Y= the software version, where X is the main

version number (different numbers are not compatible with one another) and Y is the sub version number (a higher number is always compatible with a lower number).

• NNNNN= last five digits of 12nc code software.

– FBX VERSION. The 12NC-number of the build in

Feature Box software.

• ERRORS (followed by maximal 10 errors). The most recent error is displayed at the upper left (for an error explanation see paragraph "Error Codes").

• DEFECTIVE MODULE. Here the module that generates the error is displayed. If there are multiple errors in the buffer, which are not all generated by a single module, there is probably another defect. It will then display the message "UNKNOWN" here.

• RESET ERROR BUFFER. When you press the "OK" button, the error buffer is reset.

• ALIGNMENTS. This will activate the "ALIGNMENTS" sub- menu.

• DEALER OPTIONS. Extra features for the dealers.

• SERVICE OPTIONS. Extra features for Service.

• INITIALISE NVM. When an NVM was corrupted (or

replaced) in the former EM3 chassis, the microprocessor replaces the content with default data (to assure that the set can operate). However, all pre-sets and alignment values are gone now, and option numbers are not correct. Therefore, this was a very drastic way. In this chassis, the procedure is implemented in another way: The moment the processor recognises a corrupted NVM, the "INITIALISE NVM" line will be highlighted. Now, you can do two things (dependent of the service instructions at that moment): – Save the content of the NVM via ComPair for

development analysis, before initialising. This will give the Philips Service department an extra possibility for diagnosis (e.g. when Development asks for this).

– Initialise the NVM (same as in the past, however now it

happens conscious).

• STORE. All options and alignments are stored when pressing the "OK"-button

• FUNCTIONAL TEST. All devices are tested via the "OK" button. Eventual errors are displayed in the error buffer. The error buffer is not erased, the content returns when this test is terminated.

• DAILY MENUS. With the "OK" button, you can go to the normal user menu. SAM is still active in the background. With the "MENU" button, you return from the user menu to SAM menu. This feature can be helpful to quickly change some settings in the user menu.

• SW MAINTENANCE – UPGRADE. Not applicable for this chassis – EVENTS. Not useful for service purposes. In case of

specific software problems, the development department can ask for this info.

– BDM INFO. Broadcast Debug Menu info. The purpose

of this menu is to debug the broadcast, NOT the TV. The menu gives an overview of what is received on the current preset. Following items are displayed:

EN 13EM5.3E 5.

P r e s e t n r : -- UTC: - - : - - : -- P r e s e t n a m e : ----- LTO: - - : - - : -- Time: - - : - - : -- C N I N V M : ---- Date: - - / - - / ---- C N I F 1 : ---- C N I F 2 : ---- Time TXT: - - : - - : -- C N I V P S : ---- Time 8/30 F1: - - : - - : -- M o r n i n g P r o g : --- Date 8/30 F1: - - / - - / ---- N a m e 8 / 3 0 F 1 : ----- LTO 8/30 F1: - - : - - : -- N a m e 8 / 3 0 F 2 : ----- N a m e T X T : ----- WSS G1: - - - - S i g n a l S t r e n g t h :--- WSS G2: - - - - WSS G3: - - - E P G S e r v i c e : --- WSS G4: - - -

Figure 5-1 Broadcast debug menu overview.

Table 5-1 Broadcast debug menu explanation

Item Source Description

Presetnr Set Presetnumber of the current selected

Presetname Set Presetname of the current selected

CNI NVM Broadcaster CNI number stored in NVM for the

CNI F1 Broadcaster CNI number from transmitted Packet 8/

CNI F2 Broadcaster CNI number from transmitted Packet 8/

CNI VPS Broadcaster CNI number from transmitted VPS line. Morning Prog Broadcaster "ARD" or "ZDF" according to dedicated

Name 8/30 F1 Broadcaster Name extracted from status message of

Name 8/30 F2 Broadcaster Name extracted from status message of

Name TXT Broadcaster Name extracted from TXT header. Signal Strength FBX Noise figure measured for selected

EPG Service Set EPG Service stored in NVM for current

UTC Set UTC (Universal Time Code formerly

LTO Set LTO (Local Time Offset) used in the set.

Time Set Current time running in the set. Was

Date Set Current date running in the set. Was

Time TXT Broadcaster TXT header time from the selected

Time 8/30 F1 Broadcaster UTC time from 8/30 Format 1. Date 8/30 F1 Broadcaster Date from 8/30 Format 1. LTO 8/30 F1 Broadcaster LTO from 8/30 Format 1. WSS G1 Broadcaster WSS Group 1 (Aspect Ratio) bits 0 1 2 3 WSS G2 Broadcaster WSS Group 2 (Enhanced Services) bits 4

WSS G3 Broadcaster WSS Group 3 (Subtitles) bits 8 9 10 WSS G4 Broadcaster WSS Group 4 (Reserved) bits 11 12 13

preset.

current preset.

30 Format 1.

30 Format 2.

bit in 8/30 Format 1.

8/30 Format 1.

8/30 Format 2.

preset.

preset displayed as "TXT", "MCP", "SCP", "OCP".

known as Greenwich Mean Time) used in the set.

Used by EPG for all Nextview displays. (= Time TXT header - Time 8/30 F1 )

extracted at startup, then maintained by software.

preset.

5 6 7

How to navigate

• In SAM, you can select the menu items with the "CURSOR UP/DOWN" key on the RC-transmitter. The selected item will be highlighted. When not all menu items fit on the screen, move the "CURSOR UP/DOWN" key to display the next/previous menu items.

• With the "CURSOR LEFT/RIGHT" keys, it is possible to: – (De) activate the selected menu item. – Change the value of the selected menu item. – Activate the selected submenu.

CL 36532017_055.eps

240403

EN 14 EM5.3E5.

Service Modes, Error Codes, and Fault Finding

How to exit SAM

Use one of the following methods:

• Press the "MENU" button on the RC-transmitter, or

• Switch the set to STANDBY via the RC-transmitter, or

• Press the "EXIT" button on the DST.

5.2.3 Customer Service Mode (CSM)

Purpose

When a customer is having problems with his TV-set, he can call his dealer. The service technician can than ask the customer to activate the CSM, in order to identify the status of the set. Now, the service technician can judge the severity of the complaint. In many cases, he can advise the customer how to solve the problem, or he can decide if it is necessary to visit the customer. The CSM is a read only mode; therefore, modifications in this mode are not possible.

How to enter CSM

Use one of the following methods:

• Press the "MUTE" button on the RC-transmitter simultaneously with the "MENU" button on the TV (top control) for at least 4 seconds.

• Key in the code "123654" via the standard RC transmitter.

Note: Activation of the CSM is only possible if there is no (user) menu on the screen!

How to navigate

By means of the "CURSOR-DOWN/UP" knob on the RCtransmitter, you can navigate through the five menus.

Contents of CSM

Customer Service Menu 1

• SOFTWARE VERSION (example: EM53EU1-

1.0_01234). Displays the build in software version. In case

of field problems related to software, software flash-RAM pos.7006 must be changed by a new one. Do this via soldering. You will find details of the software versions in the chapter "Software Survey" of the "Product Survey Colour Television" publication. This publication is generated four times a year.

• FEATURE BOX. The 12NC-number of the build in Feature Box software

• SET TYPE. This information is very helpful for a helpdesk/ workshop as reference for further diagnosis. In this way, it is not necessary for the customer to look at the rear of the TV-set.

• CODE 1. Gives the latest 5 errors of the error buffer. As soon as the built-in diagnose software has detected an error the buffer is adapted. The last occurred error is displayed on the leftmost position. Each error code is displayed as a 3-digit number. When less than 10 errors occur, the rest of the buffer is empty (000). See also paragraph "Error Codes" for a description.

• CODE 2. Gives the first 5 errors of the error buffer. See also paragraph Error Codes for a description.

• VOLUME. Gives the last status of the volume as set by the customer. The value can vary from 0 (volume is minimum) to 100 (volume is maximum). Volume values can be changed via the volume key on the RC-transmitter.

• BRIGHTNESS. Gives the last status of the brightness as set by the customer. The value can vary from 0 (brightness is minimum) to 100 (brightness is maximum). Brightness values can be changed via the "CURSOR LEFT" and "CURSOR RIGHT" keys on the RC-transmitter after pressing the "MENU" button and selecting "PICTURE" and "BRIGHTNESS".

• CONTRAST. Gives the last status of the contrast as set by the customer. The value can vary from 0 (contrast is minimum) to 100 (contrast is maximum). Contrast values can be changed via "CURSOR LEFT" and "CURSOR

RIGHT" keys on the RC-transmitter after pressing the "MENU" button and selecting "PICTURE" and "CONTRAST".

• COLOUR. Gives the last status of the colour saturation, as

set by the customer. The value can vary from 0 (colour is minimum) to 100 (colour is maximum). Colour values can be changed via "CURSOR LEFT" and "CURSOR RIGHT" keys on the RC-transmitter after pressing the "MENU" button and selecting "PICTURE" and "COLOUR".

• HUE. Only relevant for NTSC-signals (e.g. some NTSC-

DVD-discs).

Customer Service Menu 2

• SHARPNESS. Gives the sharpness value. The value can

vary from 0 (sharpness is minimum) to 7 (sharpness is maximum). In case of bad antenna signals, a too high value of the sharpness can result in a noisy picture. Sharpness values can be changed via the "CURSOR LEFT" and "CURSOR RIGHT" keys on the RC-transmitter after pressing the "MENU" button and selecting "PICTURE" and "SHARPNESS".

• HEADPHONE VOLUME. Gives the last status of the

headphone volume, as set by the customer. The value can vary from 0 (volume is minimum) to 100 (volume is maximum). Headphone volume values can be changed via the "CURSOR LEFT" and "CURSOR RIGHT" keys on the RC-transmitter after pressing the "MENU" button and selecting "SOUND" and "HEADPHONE VOLUME".

• SURROUND MODE. Indicates the by the customer

selected surround mode (or automatically chosen mode). In case the set is a Non-Dolby set, there will be displayed "0". If it is a Dolby-set then is displayed: "STEREO", "3 STEREO", "HALL", "3DSURROUND", "DOLBY PRO LOGIC" or "DOLBY DIGITAL". These settings can be influenced after pressing the "MENU" button and selecting "SOUND" and SURROUND MODE". It can also have been selected automatically by signalling bits (internal software).

• TUNER FREQUENCY. Indicates the frequency the

selected transmitter is tuned to. The tuner frequency can be changed via the "CURSOR LEFT" and "CURSOR RIGHT" keys for fine tune after opening the installation menu and selecting "INSTALL" and "MANUAL INSTALL".

• DIGITAL OPTION. Gives the selected digital mode, "100

HZ", "DIGITAL SCAN", "NATURAL MOTION", "DOUBLE LINES", or "PIXEL PLUS". Change via "MENU", "PICTURE", "DIGITAL OPTIONS".

• CENTRE TRIM. Indicates the difference between main

volume and volume of centre speaker. Change via: "MENU", "SETUP", "SPEAKERS", and "CENTRE VOLUME" (not available when "Surround Mode" is set to "STEREO" or "HALL"). The value can vary from "-10" to "+10"

• TV SYSTEM. Gives information about the video system of

the selected transmitter.

– BG: PAL BG signal received. – DK: PAL DK signal received. – I: PAL I signal received. – L/La: SECAM L/La signals received. – M: NTSC M signal received with video carrier on 38.9

MHz.

Customer Service Menu 3

• BALANCE. Indicates the balance settings, between "-50"

and "+50". Change via "MENU", "SOUND", and "BALANCE". Not applicable for Dolby Pro Logic sets.

• CENTRE MODE. Indicates if centre mode is set "ON" or

"OFF". When centre mode is on, all TV speakers are used as one centre speaker. Change Centre mode via "MENU", "SETUP", "SPEAKERS", and "CENTRE MODE".

• DNR. Gives the selected DNR setting (Dynamic Noise

Reduction), "OFF", "MINIMUM", "MEDIUM", or "MAXIMUM". Change via "MENU", "PICTURE", "DNR"

• NOISE FIGURE. Gives the noise ratio for the selected

transmitter. This value can vary from 0 (good signal) to 127

Service Modes, Error Codes, and Fault Finding

EN 15EM5.3E 5.

(average signal) and to 255 (bad signal). For some software versions, the noise figure will only be valid when "Active Control" is set to "medium" or "maximum".

• SOURCE. Indicates which source is used and the video/

audio signal quality of the selected source. (Example: Tuner, Video/NICAM) Source: "TUNER", "EXT1", "EXT2", "EXT3", "EXT4", "SIDE", "AV1", "AV2", "AV3" or "AV4". Video signal quality: "VIDEO", "S-VIDEO", "RGB 1FH", "YPBPR 1FH 480P", "YPBPR 1FH 576P", "YPBPR 1FH 1080I", "YPBPR 2FH 480P", "YPBPR 2FH 576P", "YPBPR 2FH 1080I", "RGB 2FH 480P", "RGB 2FH 576P" or "RGB 2FH 1080I". Audio signal quality: "STEREO", "SPDIF 1", "SPDIF 2" or "SPDIF".

• AUDIO SYSTEM. Gives information about the audio

system of the selected transmitter: "ANALOGUE MONO", "ANALOGUE STEREO", "PCM 2/0", "DD 1/0", "DD 2/0 LtRt", "DD 2/0 L0R0", "DD 2/1", "DD 2/2", "DD 3/0", "DD 3/ 1", "DD 3/2", "DD 1+1", "MPEG 1/0", "MPEG 2/0", "MPEG 2/0 LtRt", "MPEG 2/1", "MPEG 2/2", "MPEG 3/0", "MPEG 3/1", "MPEG 3/2", "MPEG 1+1" or "MPEG 2+2".

• TUNED BIT. Gives information about the tuning method of

the stored pre-set. If a channel is found via "automatic installation", you will see the value "Off". When you change this (automatically found) frequency via "fine tune" adjustment (installation menu - manual installation), the displayed value will change to "On". Therefore, when you see the value "On" in this line, it is an indication that the received channel is a non-standard signal (e.g. of a VCR).

• SURROUND SPEAKERS. Indicates if the surround

speakers are present, "YES" or "NO". Change via "MENU", "SETUP", "SPEAKERS", and "SURROUND SPEAKERS".

• ON TIMER. Indicates if the "On Timer" is set "ON" or "OFF"

and if the timer is "ON" also displays start time, start day and program number. Change via "MENU", "TV", "FEATURES", and "ON TIMER".

• PRESET LOCK. Indicates if the selected preset has a child

lock: "LOCKED" or "UNLOCKED". Change via "MENU", "TV", "FEATURES", "CHILD LOCK", and "CUSTOM LOCK".

• AVL. Indicates the last status of AVL (Automatic Volume

Level): "ON" or "OFF". Change via "MENU", "TV", "SOUND", "AVL"

• DELTA VOLUME. Indicates the last status of the delta

volume for the selected preset as set by the customer: from "-12" to "+12". Change via "MENU", "TV", "SOUND", "DELTA VOLUME".

• SURROUND TRIM L. Indicates the last status of

"SURROUND LEFT VOLUME" as set by the customer: from "-10" to "+10". Only available in Digital Dolby sets. Change via "MENU", "SETUP", "SPEAKERS", "SURROUND L VOLUME.

• SURROUND TRIM R. Indicates the last status of

"Surround Right Volume" as set by the customer: from "10" to "+10". Only available in Digital Dolby sets. Change via "MENU", "SETUP", "SPEAKERS", "SURROUND R VOLUME.

• FRONT SPKR DIST. Indicates the last status of the

distance to the front speakers as set by the customer: "1m",

"2m", or "3m",.... Change via "MENU", "SETUP",

"SPEAKERS", "TO FRONT".

• SURR. SPKR DIST. Indicates the last status of the

distance to the surround speakers as set by the customer: "1m", "2m", or "3m",. Change via "MENU", "SETUP", "SPEAKERS", "TO SURROUND".

How to exit CSM

Use one of the following methods:

• After you press a key on the RC-transmitter (with exception of the "CHANNEL", "VOLUME" and digit (0-9) keys), or

• After you switch the TV-set "OFF" with the mains switch.

5.3 Problems and Solving Tips (related to CSM)

Note: Below described problems are all related to the TV

settings. The procedures to change the value (or status) of the different settings are described above. New value(s) are automatically stored.

Customer Service Menu 4

• CHILD LOCK. Indicates the last status of the general child

lock: "UNLOCK", "LOCK", or "CUSTOM LOCK". Change via "MENU", "TV", "FEATURES", "CHILD LOCK", and "LOCK".

• AGE LOCK. Indicates the last status of the EPG rating for

child lock: "OFF", "4 YEARS", "6 YEARS", "8 YEARS", "10 YEARS", "12 YEARS", "14 YEARS" or "16 YEARS". This is only displayed if child lock is set to "CUSTOM LOCK"

• LOCK AFTER. Indicates at what time the child lock is set:

"OFF" or e.g. "18:45" (lock time). This is only displayed if child lock is set to "CUSTOM LOCK"

• CATEGORY LOCK. Indicates the last status of the EPG

theme childlock: "MOVIES", "NEWS", "SHOWS", "SPORTS", "CHILDREN", "MUSIC", "CULTURE", or "SERIES". This is only displayed if child lock is set to "CUSTOM LOCK". It is possible that more than one value is shown.

• PROGRAM CATEGORY. Indicates the theme of the

selected transmitter: "MOVIES", "NEWS", "SHOWS", "SPORTS", "CHILDREN", "MUSIC", "CULTURE", or "SERIES".

• TV RATINGS LOCK. Only applicable for US.

• MOVIE RATINGS LOCK. Only applicable for US.

• V-CHIP TV STATUS. Only applicable for US.

Customer Service Menu 5

• V-CHIP MOVIE STATUS. Only applicable for US.

• OPTIONS 1. Gives the option codes of option group 1 as

set in SAM (Service Alignment Mode).

• OPTIONS 2. Gives the option codes of option group 2 as

set in SAM (Service Alignment Mode).

5.3.1 Picture Problems

Snowy/noisy picture

1. Check line 24 "Noise Figure". In case the value is 127 or higher, and the value is also high on other programs, check the aerial cable/aerial system. For some software versions, the noise figure will only be valid when "Active Control" is set to "medium" or "maximum".

2. Check lines 11 "Sharpness" and 24 "Noise Figure". In case the value of line 11 is 3 or 4 and the value of line 24 is high (127 or higher), decrease the "Sharpness" value.

Picture too dark

1. Press "MENU", "TV", "PICTURE", "SMART PICTURE". In case the picture improves, increase the "Brightness" or the "Contrast" value. The new value(s) are automatically stored (in "personal" pre-set) for all TV channels.

2. Check line 7 "Brightness" and 8 "Contrast". If the value of line 7 is low (< 10) or the value of line 8 is low (< 10), increase the "Brightness" or the "Contrast" value.

Picture too bright

1. Press "MENU", "TV", "PICTURE", "SMART PICTURE". In case the picture improves, decrease the "Brightness" or the "Contrast" value. The new value(s) are automatically stored (in "personal" pre-set) for all TV channels.

2. Check lines 7 "Brightness" and 8 "Contrast". If the value of line 7 is high (> 40) or the value of line 8 is high (> 50). Decrease the "Brightness" value or increase the "Contrast" value.

EN 16 EM5.3E5.

Service Modes, Error Codes, and Fault Finding

White line around picture elements and text

1. Press "MENU", "TV", "PICTURE", "SMART PICTURE". In case the picture improves, decrease the "Sharpness" value. The new value is automatically stored (in "personal" pre-set) for all TV channels.

2. Check line 11 "Sharpness". Decrease the "Sharpness" value. The new value is automatically stored for all TV channels.

No picture

Check line 27 "Tuned bit". In case the value is "No", install the required program again. Open the installation menu and perform manual installation.

Blue picture

No proper signal is received. Check the aerial cable/aerial system.

Blue picture and/or unstable picture

A scrambled or decoded signal is received.

Black and white picture

Check line 9 "Colour". In case the value is low (< 10), increase the "Colour" value. The new value is automatically stored for all TV channels.

No colours/colour lines around picture elements or colours not correct or unstable picture

1. Check line 20 "TV System". If a "strange" system pops up, something has gone wrong during installation. Re-install the channel.

2. In case line 20 is "L", the installed system for this pre-set is "France", while "West Europe" is required. Install the required program again: open the installation menu and perform manual installation. Select system "West Europe".

Menu text not sharp enough

1. Press "MENU", "TV", "PICTURE", "SMART PICTURE". In case picture improves, decrease the contrast value. The new value(s) are automatically stored for all TV channels.

2. Check line 8 "Contrast". The value of line 8 is high (> 50). Decrease the contrast value.

5.3.2 Sound Problems

No sound from left and right speaker

Check line 6 "Volume". The value is low. Increase the value of "Volume". The new value(s) are automatically stored (in "personal" pre-set) for all TV channels.

Sound too loud for left and right speaker

Check line 6 "Volume". The value is high. Decrease the value of " Volume". The new value(s) are automatically stored (in "personal" pre-set) for all TV channels.

5.4 ComPair

5.4.1 Introduction

ComPair (Computer Aided Repair) is a service tool for Philips Consumer Electronics products. ComPair is a further development on the European DST (service remote control), which allows faster and more accurate diagnostics. ComPair has three big advantages:

• ComPair helps you to quickly get an understanding on how to repair the chassis in a short time by guiding you systematically through the repair procedures.

• ComPair allows very detailed diagnostics (on I2C level) and is therefore capable of accurately indicating problem areas. You do not have to know anything about I2C commands yourself because ComPair takes care of this.

• ComPair speeds up the repair time since it can automatically communicate with the chassis (when the microprocessor is working) and all repair information is directly available. When ComPair is installed together with the SearchMan electronic manual of the defective chassis, schematics and PWBs are only a mouse click away.

5.4.2 Specifications

ComPair consists of a Windows based faultfinding program and an interface box between PC and the (defective) product. The ComPair interface box is connected to the PC via a serial or RS232 cable. For this chassis, the ComPair interface box and the TV communicate via a bi-directional service cable via the service connector.

The ComPair faultfinding program is able to determine the problem of the defective television. ComPair can gather diagnostic information in two ways:

• Automatic (by communication with the television): ComPair can automatically read out the contents of the entire error buffer. Diagnosis is done on I2C level. ComPair can access the I2C bus of the television. ComPair can send and receive I2C commands to the micro controller of the television. In this way, it is possible for ComPair to communicate (read and write) to devices on the I2C busses of the TV-set.

• Manually (by asking questions to you): Automatic diagnosis is only possible if the micro controller of the television is working correctly and only to a certain extends. When this is not the case, ComPair will guide you through the faultfinding tree by asking you questions (e.g. Does the screen give a picture? Click on the correct answer: YES / NO) and showing you examples (e.g. Measure test-point I7 and click on the correct oscillogram you see on the oscilloscope). You can answer by clicking on a link (e.g. text or a waveform picture) that will bring you to the next step in the faultfinding process.

By a combination of automatic diagnostics and an interactive question / answer procedure, ComPair will enable you to find most problems in a fast and effective way.

Beside fault finding, ComPair provides some additional features like:

• Up- or downloading of pre-sets.

• Managing of pre-set lists.

• Emulation of the Dealer Service Tool (DST).

• If both ComPair and SearchMan (Electronic Service

Manual) are installed, all the schematics and the PWBs of the set are available by clicking on the appropriate hyperlink. Example: Measure the DC-voltage on capacitor C2568 (Schematic/Panel) at the Mono-carrier. – Click on the "Panel" hyperlink to automatically show

the PWB with a highlighted capacitor C2568.

– Click on the "Schematic" hyperlink to automatically

show the position of the highlighted capacitor.

5.4.3 Stepwise Start-up

Under normal circumstances, a fault in the power supply, or an error during start-up, will switch the television to protection mode. ComPair can take over the initialisation of the television. In this way, it is possible to distinguish which part of the startup routine (hence which circuitry) is causing the problem. Take notice that the transition between two steps can take some time, so give the set some time to reach a stable state. During the transition time the LED can blink strangely.

Stepwise start- up explanation

This is realised via ComPair and is very helpful when a protection is activated (see also chapter "Protections").

Service Modes, Error Codes, and Fault Finding

EN 17EM5.3E 5.

Table 5-2 Stepwise start-up table

State Description mode

0 Low power standby: 5V2/3V3 present,

uP in standby-mode

1 High power Standby: TV-set in standby-

mode

2 Main Power On: HOP in standby, 5V/8V

present, I2C protections on, SSB is powered by standby-supply (5V/8V). Degaussing (12 s) has been activated, MSP is reset.

3 Initiali zed (Semi standby): most IC's are

initialized, HOP still in standby

4 HOP: HOP fully powered and working,

EHT is present, rest of IC's initialized, black current stabilisation is off, picture is still blanked

5 On: TV-set operates, black current

stabilisation is on, picture is unblanked.

Display LED

On None

Wait 1s, flash 1 x

Wait 1s, flash 2 x

Wait 1s, flash 3 x

Wait 1s, flash 4 x

Wait 1s, flash 5 x

Note (*):

• When the set is in stepwise mode and, due to stepping-up, a protection is activated, the set will really go into protection (blinking LED). The set will not leave the stepwise-mode however. If state X is the state where the set went to protection, stepwise start-up will return to state X-1. At state (X-1) diagnostic measurements can be performed. Also, in the short time the set is in state X but not yet in protection, you can also do some measurements.

5.4.4 How To Connect

1. First, install the ComPair Browser software (see the Quick Reference Card for installation instructions).

2. Connect the RS232 interface cable between a free serial (COM) port of your PC and the PC connector (marked with "PC") of the ComPair interface.

3. Connect the mains adapter to the supply connector (marked with "POWER 9V DC") of the ComPair interface.

4. Switch the ComPair interface "OFF".

5. Switch the television set "OFF" with the mains switch.

6. Connect the ComPair interface cable between the

connector on the rear side of the ComPair interface (marked with "I2C") and the ComPair connector at the rear side of the TV (situated just below the tuner input, see also chapter 4).

7. Plug the mains adapter in a mains outlet, and switch the interface "ON". The green and red LEDs light up together. The red LED extinguishes after approx. 1 second while the green LED remains lit.

8. Start the ComPair program and read the "Introduction" chapter.

TO SERVICE CONNECTOR

Enabled protection

None

4 & 5

Plus 1, 6 & 18

Plus 2 & 16

5.4.5 How To Order

ComPair order codes:

• Starter kit ComPair32/SearchMan32 software and ComPair interface (excl. transformer): 3122 785 90450.

• ComPair interface (excluding transformer): 4822 727

21631.

• Starter kit ComPair32 software (registration version): 3122 785 60040.

• Starter kit SearchMan32 software: 3122 785 60050.

• ComPair32 CD (update): 3122 785 60070 (year 2002,

3122 785 60110 (year 2003).

• SearchMan32 CD (update): 3122 785 60080 (year 2002), 3122 785 60120 (year 2003).

• ComPair interface cable: 3122 785 90004.

• ComPair firmware upgrade IC: 3122 785 90510.

• Transformer (non-UK): 4822 727 21632.

• Transformer UK: 4822 727 21633.

Note: If you encounter any problems, contact your local support desk.

5.5 Error Codes

5.5.1 Introduction

The error code buffer contains all detected errors since the last time the buffer was erased. The buffer is written from left to right, new errors are logged at the left side, and all other errors shift one position to the right. When an error has occurred, the error is added to the list of errors, provided the list is not full or the error is a protection error. When an error occurs and the error buffer is full, then the new error is not added, and the error buffer stays intact (history is maintained), except when the error is a protection error. To prevent that an occasional error stays in the list forever, the error is removed from the list after 50+ operation hours. When multiple errors occur (errors occurred within a short time span), there is a high probability that there is some relation between them.

5.5.2 How to read the Error Buffer

Use one of the following methods:

• On screen via the SAM (only if you have a picture). Examples:

– 0 0 0 0 0: No errors detected – 6 0 0 0 0: Error code 6 is the last and only detected

error

– 9 6 0 0 0: Error code 6 was first detected and error

code 9 is the last detected error

• Via the blinking LED procedure (when you have no picture). See next paragraph.

• Via ComPair.

PC VCR I2CPower

Figure 5-2 ComPair Interface connection

9V DC

E_06532_008.eps

190204

5.5.3 How to clear the Error Buffer

Use one of the following methods:

• By activation of the "RESET ERROR BUFFER" command in the SAM menu.

• With a normal RC, key in sequence "MUTE" followed by "062599" and "OK".

• When you transmit the commands "DIAGNOSE" - "99" "OK" with ComPair (or with a DST).

• If the content of the error buffer has not changed for 50+ hours, it resets automatically.

EN 18 EM5.3E5.

Service Modes, Error Codes, and Fault Finding

5.5.4 Error Codes

In case of non-intermittent faults, clear the error buffer before you begin the repair. This to ensure that old error codes are no longer present. Before clearing the buffer, write down the content, as this history can give you significant information.

If possible, check the entire contents of the error buffer. In some situations, an error code is only the result of another error code and not the actual cause (e.g., a fault in the protection detection circuitry can also lead to a protection).

There are various errors:

Table 5-3 Error table.

Error Device Description Def. item Defect. module indication Diagram

1 M24C32 NVM, spontaneous blinking error 1 7011 Control B5a 2 Hfail Protection Horizontal Flyback protection / Horizontal Flyback / 3 SAA4978 PICNIC 7713 Feature Box B3a 4 Supply 5V 5V protection / +5V Supply B5a 5 Supply 8V 8V protection / +8V Supply B5a 6 Slow I2C bus blocked Spontaneous blinking error 6 / Slow I2C Blocked / 7 TDA9330 HOP High-end Output Processor 7301 Video Controller B4 8 TDA932x HIP High-end Input Processor 7323 Chroma IF IO B2 12 TDA9178 Topic 7302 Video Controller B4 13 UV1318/... Tuner protection 1T01 Tuner A8 14 MSPxxxx ITT sound processor 7651 Audio module B6a 16 FBX Feature Box Protection / +3V (Fbx) Supply B3 18 Fast I2C bus blocked Spontaneous blinking error 18 / Fast I2C Blocked / 19 TDA8444 Auto Scavem DAC 7500 Auto Scavem SC1 26 SAA4998 FEM 7760 +3V (Fbx) Supply B3b 27 T6TX5EF Eagle 7720 +3V (Fbx) Supply B3c 28 Black current loop Black current loop / Video Controller / 32 M29W400BT Flash Ram (EPG) 7012 EPG Memory B5a 35 T6TU5XB Columbus 7752 Video Controller B3d

• I2C device errors.

• I2C bus errors.

• Protection errors.

• Errors not related to an I2C device, but of importance:

– BLACK CURRENT LOOP (ERROR 28): detection of a

continuous fail of the black current stabilisation loop of the HOP.

– FEM (ERROR 26): at start-up, after initialisation of the

PICNIC, the presence of the FALCONIC can be checked.

– EAGLE (ERROR 27): at start-up, after initialisation of

the PICNIC, the presence of the Eagle can be checked.

Note:

Error codes 1, 6, or 18 are protection codes and in this case, supplies of some circuits will be switched "OFF". Also, in protection, the LED will blink the number of times equivalent to the most recent error code.

5.6 The Blinking LED Procedure

5.6.1 Introduction

Via this procedure, you can make the contents of the error buffer visible via the front LED. This is especially useful for fault finding, when there is no picture.

When the SDM is entered, the front LED will show (blink) the contents of the error-buffer. Error-codes = 10 are shown as follows:

• A long blink of 750 ms (which is an indication of the decimal digit),

• A pause of 1.5 s,

• "n" short blinks (where "n" = 1 - 9),

• When all the error-codes are displayed, the sequence

finishes with a LED blink of 3 s,

• The sequence starts again.

Example: Error 12 9 6 0 0. After activation of the SDM, the red front LED will show:

• 1 long blink of 750 ms (which is an indication of the decimal digit) followed by a pause of 1.5 s,

• 2 short blinks followed by a pause of 3 s,

• 9 short blinks followed by a pause of 3 s,

• 6 short blinks followed by a pause of 3 s,

• 1 long blink of 3 s to finish the sequence,

• The sequence starts again.

Note: If errors 1, 6 or 18 occur, the LED always gives the last occurred error even if the set is NOT in service mode.

5.6.2 How to Enter

Use one of the following methods:

• Enter the SDM (only via soldering pads marked "SDM" on SSB). The blinking red front LED will show the entire contents of the error buffer (this works in "normal operation" mode and in "protection" mode).

• Transmit the commands "MUTE" - "062500" - "OK" with a normal RC. The complete error buffer is shown. Take notice that it takes some seconds before the blinking led LED starts.

• Transmit the commands "MUTE" - "06250x" - "OK" with a normal RC (where "x" is a number between 1 and 5). When x= 1 the last detected error is shown, x= 2 the second last

error, etc.... Take notice that it takes some seconds before

the blinking led LED starts.

• "DIAGNOSE X" with the DST (where "x" is a number between 1 and 5). When x= 1 the last detected error is

shown, x= 2 the second last error, etc.... When x = 0 all

errors are shown.

Service Modes, Error Codes, and Fault Finding

EN 19EM5.3E 5.

5.7 Protections

5.7.1 Introduction

This chassis has only one microprocessor (OTC), which remains active during Standby. This because power of the microprocessor and the attached memory chip set is coming from the 3V3 supply, which is derived from the 5V Standbycircuitry. Therefore, in both Power-on as in Standby mode, the microprocessor is connected to this power supply.

If a fault situation is detected, an error code will be generated and if necessary, the set is put in protection mode. The protection mode is indicated by the blinking of the front LED at a frequency of 3 Hz (or by a coded blinking in special cases). In some error cases however, the microprocessor does not put the set in the protection mode (this is the case with the hardware - loudspeaker protection of the audio amplifier).

The content of the error buffer can be read via the service menu (SAM), the blinking LED procedure or via DST/ComPair.

To get a quick diagnosis, this chassis has three service-modes implemented:

• The Customer Service Mode (CSM).

• The Service Default Mode (SDM). Start-up of the set in a

predefined way.

• The Service Alignment Mode (SAM). In this mode, items

of the set can be adjusted via a menu.

You can enter both SDM and SAM modes via the 'service pads' on the SSB, via an RC-transmitter (DST or standard RC), or via ComPair. It is not possible to enter the SAM in "standby"; the TV has to be in "normal operation" mode.

The "Protection Diagram" shows the structure of the protection system. See diagram below.

7301

EHT-info

Flash detect

HFB

I2C

7001

I2C PROTECTIONS

HIP HOP PICNIC TUNER NVM DNR MSP TOPIC

FBX PROTECTION

PICNIC 3V3

Figure 5-3 Protection diagram

There are several types of protections:

• I2C related protections.

• OTC related protections (via polling on I/O pins or via

algorithms).

• HOP related protections (mainly for deflection items).

+8V_CON

+5V_CON

I2C

CL 16532044_024.eps

XPR (43)

HOP

FLS (5)

HFB-XRAY-PROT

+8V SENSE (105)

+5V SENSE (106)

OTC

I2C

090501

• Hardware errors that are not sensed by the OTC (e.g. vertical flyback protection, bridge coil protection, E/W protection, arcing protection).

All protections are explained below.

5.7.2 I2C Related Protections

In normal operation, some registers of the I2C controlled ICs are refreshed every 200 ms. During this sequence, the I2C busses and the I2C ICs are checked. An I2C protection will take place if the SDA and SCL lines are short-circuited to ground, or to each other. An I2C error will also occur, if the power supply of the IC is missing (e.g. FBX_PROT (error 16)).

5.7.3 OTC Related Protections

If a protection is detected at an OTC input, the OTC will start to scan all protection inputs every 200 ms for 5 times. If the protection on one of the inputs is still active after 1 s, the microprocessor will put the set in the protection mode. Before the scanning is started, a so-called "ESD refresh" is carried out. This is done, because the interrupt on one of the inputs is possibly caused either by a flash or by ESD. As a flash or ESD can influence IC settings, the HIP, MSP, 3D Comb (US only) and wireless module are initialised again, to ensure the normal picture and sound conditions of the set.

8 V and 5 V protection: The microprocessor senses the presence of the 8 V and 5 V (via the "+5V_CON" and "+8V_CON" lines). If one (or both) of these voltages is (are) not present, an error code is stored in the error buffer of the NVM, and the set is put in the protection mode.

5.7.4 HOP Related Protections

Every 200 ms, the status register of the HOP is read by the OTC (via the I2C bus). If a protection signal is detected on one of the inputs of the HOP, the relevant error bit in the HOP register is set to "high". If this error bit is still "high" after 1 s, the OTC will store the error code in the error buffer of the NVM and, depending on the relevancy of the error bit, the set will either go into the protection mode or not.

The following protections are implemented:

• HFB (Horizontal Flyback): If the horizontal flyback is not present, this is detected via the HOP (HFB_XRAY_PROT). One status bit is set to "high". The error code is stored in the error buffer and the set will go into the protection mode.

• XPR (X-ray protection): If the HFB pulses are too low (level detection), the HOP will detect this via the XPR-bit. The error will be logged in the error buffer and the set will go into protection mode.

Note: Both errors will be logged as HFB-failure.

5.7.5 Hardware Related Protections

Due to the architecture ("hot" deflection), some protections cannot be sensed by the microprocessor. Three of these protections will lead to a protection on set level (Standby mode and blinking LED), while another will only lead to a circuit protection.

TV-set Protection

The following fault conditions will lead to a "complete" set protection:

• BRIDGECOIL protection: This is sensed via the "EW" signal going to the base of TS7652 (via R3495 and D6499). In a normal situation, the voltage on C2498 (diagram A4) is high and TS7652 is conducting. When bridge coil 5422 (diagram A3) is short circuited, the voltage on C2498

EN 20 EM5.3E5.

Service Modes, Error Codes, and Fault Finding

changes to low, which will block TS7652. In this case, also TS7641 will block and the voltage on 2642 will rise until TS7443 is forced in conduction. The "SUP-ENABLE" signal (in normal operating condition -20 V) is shorted now to ground level, which will force the Main Power Supply to Standby mode.

• ARC protection: If there are "open" connections (e.g. bad

solder joints) in the high-energy deflection circuitry, this can lead to damaging effects (read: fire). For that reason, the E/ W current is sensed (via 3479//3480). If this current becomes too high, the "thyristor" circuit (TS7653 and TS7654) is triggered. TS7442 is switched "on" and TS7443 is forced into conduction. . The "SUP-ENABLE" signal is shorted now to ground level, which will force the Main Power Supply to Standby mode.

• NON_VFB (No vertical Flyback) protection: If the frame

stage generates no pulses, TS7641 will block. TS7443 is now switched "on", which will lead to Standby mode. Therefore, in normal operation condition, TS7641 and TS7652 are conducting, while TS7443 is blocked.

Circuit Protection

The following fault condition will lead to a "partly" set protection:

• PROT1 (DC) protection: When a DC-voltage (positive or

negative) is sensed on one of the loudspeaker outputs, the protection circuit (TS7704, 7705, 7706 and 7707 in diagram A6) will put the IC7700 in Standby mode (via tristate input pin 6). For more details, see chapter "Circuit Descriptions".

5.8 Repair tips

5.8.1 Miscellaneous

The relay you hear when you switch the set "on" (from Standby or via the mains switch), is from the degaussing circuitry. It is not used for switching the Power Supply (as done in the MGchassis).

Take care not to touch the "hot" heatsink while disconnecting the SSB, despite the fact that the mains cord is out of the mains socket. There can still be an annoying rest-voltage on the heatsink for a short while. This, because the discharge resistors 3502 and 3503 (on the LSP between hot and cold part) are not stuffed for Europe. Instead, discharge resistors 3066 and 3057 on the Mains Switch panel are used, but because they are located before the Mains switch, they only discharge when this switch is "on". Advice: when you remove the SSB, disconnect the Mains cord, but keep the Mains Switch "on".

Do not try to measure on the SSB side, which is facing the 'hot' heatsink. This is dangerous. Most service test points are guided to the 'tuner' side and are indicated by the 'service' printing. Where the circuitry was too "crowded" for service printing, you can find the correct location on the "test point overviews" in this manual. A very large part of the LSP is "hot", such as:

• The primary part of the Standby Supply.

• The whole Main supply (except for the secondary Audio

supply).

• And the complete deflection circuitry (so notice that the deflection coil is hot!).

5.8.2 Start-up Sequence

COLD

HOT

EHT-INFO

START/STOP

RESET

CON

106 105

POR

OTC

99 104

I2C BUS

STANDBY low 7131/41 closed high 7131/41 open

POR 7445

17/39

HOP

START/STOP

7141

7131

+11D

OUT

CUTOFF (from CRT panel)

STBY

SUPPLY

MAIN SUPPLY

LINE DEFL. (BRIDGECOIL

-PROT) (ARC-PROT)

(NON-VFB)

Figure 5-4 Start-up circuitry

The start up sequence differs from other sets (e.g. MG-sets or EM2E-sets, but is same as in EM3E-set):

1. When the set is switched "on", the 5 and 8 V lines ("+5V_CON" and "+8V_CON") of the standby power supply are activated.

2. After the OTC senses them, the P will address the HOP via the I2C-bus, to start the drive [1].

3. Via the "SUP-ENABLE" signal, the Main Supply is switched "on" and will deliver the V_BAT to the Line deflection stage [2].

4. EHT generation is now started.

5. The OTC will un-blank the picture.

6. When you switch "off" the set, this is done in a controlled

way via the POR signal [3].

Note: Standby is not directly achieved via the Standby line of the microprocessor, but indirectly via the HOP circuitry.

5.8.3 ComPair

This chassis does not have an IR transmitting LED (as in MGsets). Therefore, a "Service" (ComPair) connector is implemented at the rear side of the set, which is directly accessible (as in A10-, EM2E-, EM3E and EM5E-sets). In addition to this, there is also a blinking LED procedure to show the contents of the error buffer.

When you use ComPair, you have the possibility to activate a "stepwise start-up" mode. With this mode, you can initiate the start-up sequence step by step. This also means that in certain steps, some protections are not activated. This is sometimes very convenient during repair.

Vbat

FRAME

DEFL

SUP-ENABLE

220 VAC

PROT-

SENSING

CL16532044_023.eps

140501

Service Modes, Error Codes, and Fault Finding

EN 21EM5.3E 5.

5.8.4 Protections

Activating SDM via the "service pads" will overrule the processor-controlled protections, but not the hardware protections. This means, that the A/D-input protections (5 and 8 V) and the I2C "not-acknowledging" info of the feature box (FBX) and of the Tuner are overruled. Caution: When doing this, the service technician must know what he is doing, as it could lead to damaging the set.

The "ARC"- and/or "BRIDGECOIL" protection are hardly ever triggered, however:

• When you suspect the "ARC" protection, look for bad solder joints and smell. By interrupting resistor 3497, this protection is disabled (special attention needed!).

• When you suspect the "BRIDGECOIL" protection, which can also be due to a too wide picture amplitude, shorten G and S of the E/W MOSFET 7480. This will disable the protection. You will now have minimal horizontal amplitude. Re-align the horizontal amplitude in the SAM menu and remove the G/S short of TS7480.

5.8.5 Main Supply

The simplest way is, to replace the components of the Main Supply with repair kit 3122 785 90310.

More detailed way:

1. Replace FET 7504 and zener 6505.

2. Remove the SSB panel.

3. Short B and E of TS7529, in order to put the Main Supply

in "on"-mode (TS7529 is blocking then). Caution: To prevent that R3403 and TS7443 will be damaged, first

disable the HW-protection of the deflection circuit.

Therefore short circuit C2642 on the LSP (diagram A4).

4. Attach a load of 500 O to V_BAT capacitor C2515 (the supply can not work without a minimum load).

5. Use a variac, and slowly increase the V_MAINS. Measure over sensing resistors R3514//15, if a nice sawtooth voltage becomes available.

6. Also measure the V_BAT. This may never exceed +141 V. If it does, there is something wrong in the feedback circuitry (e.g. regulator 7506).

Note: Be careful when measuring on the gate of FET TS7504. This circuitry is very high ohmic and can easily be damaged (first connect ground to measuring equipment, than measure the gate).

3. Measure with a multi-meter, or better with a oscilloscope, the functionality of the Frame stage.

4. After you have found the cause, exchange the defective component (e.g. TDA8177), and re-solder the interrupted resistors.

5.8.6 Standby Supply

The simplest way is to replace the components of the Standby Supply with repair kit 3122 785 90460.

5.8.7 Line Deflection

The simplest way is to replace the components of the Line Deflection circuitry with repair kit 3122 785 90330.

5.8.8 Frame Deflection

Caution: When the Frame Deflection circuitry is suspected,

one must be careful. Because there is a DC-voltage on the frame deflection, the beam current could damage the CRT

neck, leading to a defective CRT.

To prevent this from happening, you must:

1. Interrupt the resistors 3403 and 3404 on the CRT panel (diagram F1), in order to remove the "filament" voltage from the tube (no beam current, so no chance of destroying the CRT).

2. Interrupt resistor 3403 on the LSP (diagram A4) to disable the "SUP-ENABLE" line.

EN 22 EM5.3E5.

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.

No picture, no LED. Bad connection of SSB in SIMM-

No picture, LED blinking at 3 Hz. Set is in protection due to various

No picture, LED blinking with code 6-6-6 or 18-18-18.

No picture, LED blinking with code 1-1-1.

No picture, no sound. Set is making audible squeaking sound

No picture, no sound. Power LED works fine

No RC-reception. LED does not echo RC-commands.

Relay (degaussing) is not audible, when set is switched from 'off' or 'standby' to 'on'.

Picture is rotated. Rotation circuitry on diagram A5, or

Picture is continuously switching 'off' and 'on', showing heavy 'switch' spots (set does not go into protection).

Picture is not sharp. Focus is possibly mis-aligned or

Picture is not synchronised. The sync is derived in the HIP from

Picture is distorted. Check video-path in Service Default

No menu, no OSD. Probably a defective uP. Measure test points B61to B64 on diagram B5. How to measure if soldering

connections of a BGA are OK How to measure on other IC's It is advisable to measure both on the pins itself and the solder pads on the PWB. This to find

connector.

causes. For error codes see errorcode list.

No communication on slow I2C- or fast I2C-bus.

No communication on NVM- I2C bus to the uP.

Supply is possibly in hiccup-mode, which is audible via a squeaking supply transformer.

Supply does not work correctly. If e.g. V

uP circuitry or RC-receiver is defective.

uP is not working correctly.When pin 115 is low, the degaussing must be activated.

related supply to it, malfunctions. 200 V is missing on CRT panel. Probably a bad connection from LSP connector 1424 to CRT connector 1424 (diagram F), or an

SCAVEM-circuitry does not work correctly.

x-tal 1305 and/or 1308.

Mode.

When the Mains switch is 'on', this voltage must always be available In case of a bad connection, it can happen that there is no picture, and that the Standby LED is not

controllable. Re-place the SSB. You have no picture, so:

- Read the error buffer via ComPair (error buffer is accessible when set is in protection, comparefile will guide you to this)

- Read the blinking LED information via standard remote command <mute>06250X<ok>

- Or you read the error code sequence via standard remote command <mute>062500<ok>.

When you have found the error, check the circuitry related to the supply voltage and I2Ccommunication or the circuitry that triggers the protection.

As processor cannot communicate with one of the 2 busses it the standby-le d spontaneously starts blinking 6-6-6... or 18-18-18... If in the error buffer somewhere is an error 6 or 18, these will have the highest priority starting the mentioned blinking. Measure dependent of the error on the I2C-bus which device is loading the bus. (Use I2C -overview)

As the uP cannot communicate with the NVM I2C bus, it spontaneously starts blinking 1-1-1. Note: when there is no access to the NVM, a lot of picture setting can go wrong.

Possible causes:

- V

is shorted (caused by short circuited line transistor 7421), or

BAT

- Sound winding is shorted (amplifier is shortening the power supply lines), or

- D6514 is shorted (due to a too high V

Remove excessive load, to see what causes the failure, or check feedback circuit. See repair tip 'Main Power Supply' (supply needs a minimal load).

is only about 90 V, it is possible that the regulator IC (7506) is defective.

BAT

In case the set does react on a local keyboard operation, you must check the RC-receiver circuitry.

Check RESET-circuitry on diagram B5. Check the level on pin 115 when you switch the set 'on'. Signal must be low initially and go to high after approx. 12 s.

Measure test points on diagram A5.

interruption of the 200 V supply line (e.g. R3341 on circuit F is interrupted).

Re-align the 'focus' potmeter on the Line Output Transformer, or check the SCAVEM circuitry on the CRT-panel (diagram F). It is also possible that the DAF circuitry is defective (see diagram I). Check the Vdc values.

Maybe the crystals 1305 and/or 1308 are making a bad contact.

Investigate whether there is an error code present in the error buffer. In case there is one, check the I2C -bus and/or supply lines (see overview supply lines). Measure and check signal path Tuner-HIP-PICNIC-HOP-RGB amplifier.In case it is a geometry issue, check on diagram A4 opto-coupler 7482, Opamps 7440/7450 and the Frame circuitry alignments or a possible corrupted NVM (7011) on diagram B5.

For most BGA's the pins/balls are ESD protected via diodes to ground, it is possible to measure these diodes with a multi-meter. Overload means no or bad connection.

possible solder faults.

BAT

Block Diagrams, Test Point Overview, and Waveforms

6. Block Diagrams, Test Point Overview, and Waveforms

Wiring Diagram

(optional)

CENTRE

TOP CONTROL PANEL

TWEETER

BLUE BLUE

RIGHT

SPEAKER

0345 4P

(COMPONENT VIEW)

CRT PANEL

1434

1940

11P

CRT

SOCKET

SPEAKER

RED

BLACK

1435

BLACK

BLACK/

WHITE

1483

1424

23EM5.3E 6.

DEGAUSSING COIL

SCAVEM

COIL

CRT

FRAME

ROTATION

COIL

8400

EHT CRT

A (LOT)

1435

8483

8424

AQUADAG

CRT PANEL

TWEETER

LEFT

SPEAKER

BROWN BROWN

CVBS (YELLOW)

LEFT (WHITE)

RIGHT (RED)

HEADPHONE

1955

SVHS

AUTO SCAVEM

1440

11P

1940

11P

I/O 3rd

SCART

1992

1327

3rd

SCART

21P

SIDE I/O PANEL

1328

1326

1980

1936

11P

1981

8346

8440

8955

SSB

(SMALL SIGNAL BOARD)

LSP(LARGE SIGNAL PANEL)

1146

N.C.

1947

1946

1945

1201

8937

8940

N.C.

2P 2P

8338

8945

8335

8936

1680

1000

80P

8680

1735

1951

1955

1940

1620

1501

11P

1201

1205

SSB

PANEL

80P

1936

11P

3P3P

1737

1738

1499

1693

1498

5205

8946

1417

5203

1505

1502

8737

8000

1491

LOT

1424

1491

DAF PANEL

1417 1418

1419

1491

1497

8202

DC SHIFT

(OPTIONAL)

0317

MAINS SWITCH PANEL

MAINS

SWITCH

02010202

2P2P 3P9P

8190

MAINS CORD

0241

(optional)

SUB

WOOFER

1680

1498

1402

8402

1402

compair interface

1943

TUNER

CINCH

SCART

1625

1492 1492

3P 3P

8625

E_14600_049.eps

020404

Block Diagrams, Test Point Overview, and Waveforms

Block Diagram Supply and Deflection

24EM5.3E 6.

220V

6525 GBU4J

GND-STB

HOT GROUND

SUPPLY

MAINS SWITCH

PANEL

0201

1503

2.5A

2516

-20V

(PARTLY)

1031

1051

MAINS

SWITCH

V-START

+375V

7504 STP5NB60FP

3531

ACTIVATING

CIRCUIT

NOT IN PV02 MODEL

0202

7529

1606

T6,3A

6109

TCET1103

STAND-BY SUPPLY

STARTUP

3110

7100 7101 7105 7120

CONTROL

CIRCUIT

-20V

7502 7530

CONTROL

CIRCUIT

324

7507

7506 TL431CZP

MAIN SUPPLY

0202

1501

T5A

7102 STP3NB60

A11

A12

3108 3118

A13

-20V

5102

2102

MAIN SUPPLY

3506

VBATT

ADJUSTMENT

3530

3510

3526

GND-SUPGND-STB

SUP-ENABLE

5113

3514

3507

3527

6103

3520

6514

3509

A10

5104

GND-STB

5502 5503 5504

A15

7103 OR

A16

5506 OR

HOT

2523 2515

MAINS FILTER

5100

7104

5612

5511 5516

COLD

5103

3114

3550

1550 4

A17

6113

6148

5130

2512

2511

+VBATT

DEGAUSSING

3115

3116

1149

1.6A

+8V6-SWITCH

7131

CONTROL

1148

1.25A

+5V-SWITCH

7141

CONTROL

7132

5514

+5.2V_MP

7133 7130

7140

7501 7528

ACTIVATING

CIRCUIT

6110

5112

3161

6130

5111

6107

6111

3113

6122

3124

65355507

55096536 5513

1502

HOT

COLD

OTC

VTUN

+11V_STBY

A18

+11V

A20

+5.2V_MP

A21

STANDBY

+16V+19V

AUDIO SUPPLY

2542

GND-AUD

2543

-16V-19V

AUDIO SUPPLY

A19

2126

OTC

COLD

+8V6

+5.2V

+5V

+8V6

HOT

DEG. COIL

DEFLECTION

LINE DEFLECTION

+VBATT

HOT COLD

+5.2V

LINEDRIVE 1

HOP

FRAME DEFLECTION

E/W DRIVE

EW-DRIVE 1

HOP

+8V6

3455

3456

HFB_X-RAY-PROT

HOP

FRAMEDRIVE +

HOP

HOP FRAMEDRIVE -

COLD HOT

3660

7611

CURRENT SOURCE

5 6

3404

3459

A33

A34

3658

+8V6

3640

2403

7440-B

3419

3 2

3631

7612

+11D

6456

5 6

A37

+8Vb

3457

7441

7455

7440-A

A35

3657

6627 6626 6625

3642

3632

A39

6408

6407

341434062492

3654

7450-B

3 2

3415

3416

A22

7409

A23

3404

1693

A38

FRAME DEFLECTION

2457

+8Vb

7614

7450-A

A36

3638

3643

3630

3634

A24

7408

COLD HOT

E/W - DRIVE

TO 1693

DAF

1 5

3641

+13V-LOT

7620

TDA8177

A40

DC-SHIFT

DC-

SHIFT

CIRCUIT

5400

A25

5410

94 61

SUP-ENABLE

3492

3484

7482

7487

5621

6620

OP. AMP

-15V-LOT

3623

(OPTIONAL)

1430

400 mA

+141V

5401

A26

7421 BU2520DX

+8V-S +141V

3493

A45

7486

7442, 7654 7653

PROTECTION

CIRCUIT

ARC-PROT

7641 7443 7652

PROTECTION

CIRCUIT

2622

FLYBACK

GENERATOR

THERMAL

PROTECTION

1419

E/W

DRIVE

A28

2443

5461

A30

+11D

7445

A31

A32

2462

2464

1417

1497

1693

6460

34993498

5800

HOR. DAF

CIRCUIT

+11D

312

FILAMENT

HFB_X-RAY-PROT.

A29

+13V - LOT

-15V - LOT

1620

317

1 2

5430

LOT

LINE OUTPUT CIRCUIT

6480

5467

A47

A48

VERT. DEFL. COIL

5421

3480

2430

2431

3431

HOT COLD

5463

+13V-LOT

A50

7613

TL431

+11D +8Vb

ROTATING CIRCUITRY

TILT

OTC

3635

+11V_ROT

SWITCH OFF

IN STAND-BY

5465

3636

3637

3449

3686

7681 7682

CIRCUIT

CORR.

7480

3488

STP3NB60

A46

3479

SUP-ENABLE

-15V_LOT

3647

3620

6499

3627

6619

1625

1 2 3

3481

3483

6491

A42

A43

5620

A44

EHT

VG2

FOCUS A

FOCUS B

3400

A49

1601

125mA

3685

DYNAMIC FOCUS

CRT

3450 3451

6411

FILAMENT

3460

3461

3463

3462

3465

3464

+8V-S

7680

TDA7052

2 3

3684

6080

+11D

6400

6463

6462

6465

6464

EHT-INFO

+Vp

DAF

1418

HOT

COLD

VER. DAF

CIRCUIT

1491

MENT

PULSES

1424

11V

FILA-

EHT-INFO

TUNER, SIM

+11D

HOP

PORPOR

AUDIO

POR

FLASH

OTC

COLD HOT

HOT COLD

ROTATION DEFLECTION COIL

260304

1495

+13V LOT

-12V8

E_14600_050.eps

LINE DEFLECTION COIL

1224

CRT

TO PANEL ON CRT NECK

Block Diagrams, Test Point Overview, and Waveforms

Testpoint Overview LSP and CRT Panel

LSP COPPER TRACK SIDE

A18

154

7680

ROTATION

A17

A15 A16

A13

A14

A71

1 2 3 4 5 6 7 8 9 10

PM3394B

2 3 4 5 6 7 8 9 10

A20

STANDBY

TRAFO

A10

A11

MAIN

SWITCH

PM3394B

5100

7131 +8V6

106

7102

STANDBY

SUPPLY

PM3394B

A19

A21

7141

+5V

A12

MAINS

TRAFO

5506

7504

MAIN

SUPPLY

PM3394B

25EM5.3E 6.

PM3394B

A5 A6 A7 A8 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 A21 A22 A23 A24 A25 A26 A28 A29 A30 A31 A32 A33 A34 A35 A36 A37 A38 A39 A40 A41 A42 A43 A44 A45 A46 A47 A48 A49 A50 A56 A57

C4 C4 C5 A4 B4 C2 C2 D3 D1 D1 C1 C1 B1 A1 A3 A2 A3 D8 D8 D8 D8 D7 G9 G10 G10 E9 E9 C8 D9 C9 D10 D9 C9 D10 E10 E10 E10 F10 E10 D7 E6 E7 E7 C9 D9 C6 B6

A15

A69

TUNER

A68

106

A59

125

7700

A57

SIM CON.

A70

AUDIO

L+R

A58

A56

7702

AUDIO

C+SUB

A46

7480

E/W

A67

A64

125

A45

A48

A63

A47

A62

A68

A66

A26

A60

A61

A23

A22

7421 LINE

49 3

2 1

LOT

A33

A35

A34

A24

A25 A50

ECB

10 11 12

A49

A38

A37

A31

A32

FRAME

7620

A41

A36

A39

A40

A29

A42

A44

A43

A30

A28

COLDHOTCOLD HOT

PM3394B

A10

PM3394B

A11

PM3394B

A12

PM3394B

A13

PM3394B

A14

A58 A59 A60 A61 A62 A63 A64 A66 A67 A70 A71 A88

C6 B5 D7 C8 D7 D7 C7 C7 C7 A10 F1 A9

SC23

2 V / div DC

100µs / div

A16

SC10

1 V / div DC

10µs / div

SC24

2 V / div DC

100µs / div

CRT PANEL (COPPER TRACK SIDE)

F15

3707

F5 F6

CRT

SOCKET

1940

AUTO SCAVEM PANEL (COPPER TRACK SIDE)

A17

PM3394B

1424

7500

SC10

7042

50V / div DC

2us / div

A18

PM3394B

5V / div DC

5us / div

A41

PM3394B

200mV / div DC

2ms / div

A70

PM3394B

2V / div DC

50us / div

50V / div DC

5us / div

A19

1V / div DC

5us / div

A42

20V / div DC

2ms / div



   

  

PM3394B

50V / div DC

5us / div

A22

1V / div DC

10us / div

A43

10V / div DC

2ms / div



   

  

PM3394B

50V / div DC

5us / div

A23

PM3394B

200mV / div DC

10us / div

A44

PM3394B

200mV / div DC

2ms / div



   

  

5V / div DC

10us / div

A24

5V / div DC

10us / div

A45

1V / div DC

10µs / div



   

  

PM3394B

20V / div DC

10us / div

A25

PM3394B

2V / div DC

10us / div

A46

PM3394B

500mV / div DC

10µs / div



   

  

50V / div DC

5us / div

A33

PM3394B

500mV / div DC

2ms / div

A47

PM3394B

50V / div DC

10µs / div



   

  

5V / div DC

5us / div

A34

PM3394B

500mV / div DC

2ms / div

A48

PM3394B

500mV / div DC

10µs / div

F15

10 V / div DC

10µs / div

2V / div DC

5us / div

A35

PM3394B

500mV / div DC

2ms / div

A56

200mV / div DC

2ms / div

SC3

1 V / div DC

10µs / div

5V / div DC

10us / div

A36

PM3394B

200mV / div DC

10us / div

A57

PM3394B

20V / div AC

2us / div

SC4

2 V / div DC

10µs / div

200mV / div DC

10us / div

A37

PM3394B

500mV / div DC

2ms / div

A58

200mV / div DC

2ms / div

SC5

2 V / div DC

10µs / div

500mV / div DC

5ms / div

A38

PM3394B

200mV / div DC

10us / div

A59

PM3394B

10V / div DC

2us / div

SC6

2 V / div DC

10µs / div

5V / div DC

5ms / div

A39

PM3394B

2V / div DC

10us / div

A68

PM3394B

200mV / div DC

5us / div

SC7

2 V / div DC

10µs / div

20V / div DC

5us / div

A40

PM3394B

200mV / div DC

2ms / div

A69

PM3394B

2V / div DC

50us / div

SC8

2 V / div DC

10µs / div

SC23

SC24

7026

SC8

SC7

7012

SC5

E_14600_052.eps

SC6

7008

260304

7022

7004

7006

SC4

1940

SC3

111

Block Diagrams, Test Point Overview, and Waveforms

Block Diagram Video

VIDEO

TUNER,

SIMM-CONNECTOR (FEMALE)

4 5

6 7

8 9

C-SC2-SVHS-IN

CVBS-TER-OUT

1200 UV1318S

TUNER

A69 A70

CVBS-SC1-AV1-IN CVBS-AV3-IN

Y_CVBS-SC2_AV2-IN C-SC2-SVHS-IN

Y-CVBS-FRONT-IN C-FRONT-IN

CVBS-SC2-MON-OUT

R/G/B/FBL/SC1-IN

Y-CVBS-FRONT-IN C-FRONT-IN

CVBS-SC2MON-OUT

C-FRONT-IN

+5VT

ERR

3201

3200

SDA-S

SCL-S

7902

7908

7901

AGC

VTUN

6200 BZM55-C33

A68

1,2,3,4

IF-TER

1205

11 11

6 7

63 64

1936

2 4

SIMM

CONN. (MALE)

1000

5403

40,4

AGC

MONITOR

6 7

63 64

SIDE I/O

1936

C/16:9

4 7

SVHS

251

CVBS

INPUT/OUTPUT (VIDEO PART)

A11

SCART 2

SC2-CVBS-MON OUT

C-SC2-SVHS-IN

SC2-C-OUT

TER-CVBS-OUT

FBL

R/G/B/SC1-IN

IF, I/O VIDEOPROC. (HIP)

7402

1901-B

Y_CVBS-SC2_AV2-IN

P50

SCART 1

1901-A

CVBS-SC1-AV1-IN

SC1-FBL-IN

SC1-STATUS

SAW FILTER

VIDEO

VIF1 VIF2

1410 1408

SAW FILTER

AUDIO

SIF2 SIF1

1409

1411 7410

SEL-SVHS-RR-STATUS 2

7411

7323 TDA9320H

2 3

TUNER AGC

64 63

SOUND-OUTPUT

1406 1407

SOUND

FILTER

10 12 13 14

PLL

DEM

QSS

MIXER

DEMO

QSS-AM

CVBS-SC1-AV1-IN CVBS-AV3-IN

Y-CVBS-SC2-AV2-IN C-SC2-SVHS-IN

Y-CVBS-FRONT-IN C-FRONT-IN

CVBS-SC2-MON-OUT

SDA-F

SCL-F

OTC

PSS-AM

CVBS-TER-OUT

GROUP

DELAY

COR.

CVBS-SC1-AV1-IN

7322

HIP

SEE BLOCK DIAGRAM AUDIO

3377

3376

Y_CVBS-SC2_AV2-IN

6 4

26EM5.3E 6.

AUDIO

DEMODULATOR

CVBS-TXT

OTC

7320

ERR

26 29 28

PROC.

VIDEO

SWITCH

CONTROL

PROC.

SYNC

SEPAR.

16 28

20 21

23 24

N.C.

V10

CVBS PIP

SCART1

R/G/B/FBL/SC1-IN

36 37 38 39

Y/U/V

SWITCH

DECODER

PAL

NTSC

SECAM

V-SYNC

PROC.

H-SYNC

PROC.

RGB

MATRIX

R/G/B/FBL/SC3-IN

Y U V

VY V

RGB

41 42 43 40

49 50 51

1305

4.43MHz

1308

3.57MHz

SCART2

7404

F404

F405

F406

F407

F408

(N.C.)

COLUMBUS

B3D

7753 MSN56V16160F-7TS

VA50

HA50

9609

9608

9607

COLUMBUS

I/O

MEMORY

INTERFACE

Y-PIP+MAIN-IN

U-PIP+MAIN-IN

V-PIP+MAIN-IN

HA50

ERR

Y50

U50

V50

7752 T6TU5XB

SDRAM

SWAN

3D COMB

NOISE REDUCT

MUX

656

ENCOD

MUX

656

DECOD

MUX

OTC

1402

G B

RG/B/FBL/SC3-IN

FBL

I/O 3RD SCART (VIDEO PART)

1402

FBL

1992

CVBS-AV3-IN

FBL

STATUS-SC3

1680

565

1680

VA50

UVB

UVA

AUDIO DEMO.

B3A

3713

3714

3715

PICNIC

7736

7735

7734

64K

7711

PROM

M27C512

7713 SAA4978H

F162

2740

F163

2741

SIGNAL PROCESSING

ADC

F164

2742

PICNIC

3727

3728

SYNC PROCESSING

ADC

ERR

BACK END PEAKING

MUX

MID END

HISTOGRAM

NOICE

REDUCTION

TBC/SRC

MUX

LATCH

7712

74HC573D

OUTPUTS 12, 14, 15, 18, 19 NOT USED IF "EAGLE" IS PRESENT

Y-OUT

DAC

U-OUT

V-OUT

DAC

Y_EAGLE_E

U_EAGLE_E

V_EAGLE_E

VD_E

HD_E

F100

VD100

HD100

Y100

F101

U100

F102

V100

F105

F104

OUTPUT

FILTER

3721

7703

HOP

TOPIC NOT PRESENT IF "EAGLE" IS PRESENT

+8VS

TOPIC

ERR

7302 TDA9178

7304

SDA-F

SCL-F

V19

V20

V21

N.A.

3363

3331

3321

3320

B1 B5 B1

2323

2431

2321

F17

L12

V23

V22

HFB-X-RAY-PROT

HFB

DYN-FASE-COR.

7301 TDA9330H

YUV

RGB YUV

MATRIX

PH1-1

1301

12MHz

SC1

FROM

1424

(LINE

DEFL.)

TO 1955

LSP

1955

1940 1 2 3 4 5 6 7 8

9 10 11

1940

1424

1SDA-S

SCL-S

2 3 4 5 6 7 8

9 10 11

HFB_X-RAY_PROT

BUS B

FRONT

BUS A

END

BUS C

BUS D

7714 MS81V04160

FIELD

MEMORY

FALCONIC

B3B

7760 SAA4998H/V1

OTC

CVBS-AV3-IN

BUS A

FALCONIC

EMBEDDED

MEMORY

ERR

BUS F

BUS G

NOT USED IF "EAGLE" IS PRESENT

B3C

7719 MSN56V16160F-6TS

DRAM

EAGLE

7720 T6TX5ES

EAGLE

ERR

OUTPUT

FILTER

7718

7717

7728

7729

7730

Y_EAGLE_E

U_EAGLE_E

V_EAGLE_E

VD_E

HD_E

SEE BLOCK DIAGRAM DEFLECTION

DAC

FROM

BLOCK

DIAGRAM

'CONROL'

CONTROL

R-TXT

G-TXT

B-TXT

V24 V26

V25

35 36 37 38

RGB

INSERTION

Y/U/V

OUTPUT

RGB

AMPL.

MATRIX

CATHODE

CALIBR.

HOP

ERR

DRIVE

RAMP

FRAME

GEN

STARISTOP

PH1-2

H-DRIVE

91413

2120

3324

AUTOSCAVEM

+11V

HFB_X_RAY_PROT

EHT-INFO Y-SCAVEM

+8V6

R-CRT

SC2

G-CRT B-CRT

CUT_OFF

CRT/SCAVEM PANEL

N.C.

HFB_X-RAY_PROT

EHT-INFO

Y-SCAVEM

+8V R-CRT

G-CRT

B-CRT

CUTOFF

3417

EHT-INFO

N.C.

F15

200V

3341

E/W

FBL-TXT

SC3

V27

2 1

7303

7361 7362

3 4

FILAMENT

+200V

YLTP

V28

V29

V30

F20

F18

F19

L13

7500 TDA8444T

I/O

EXP.

RES

+8V

3340

3341

3342

E/W DRIVE

FRAMEDRIVE FRAMEDRIVE +

LINEDRIVE1

7310, 7311

PULSE

FORMER

530Ks

POR FLASH

ERR

SCAVEM

PROC.

7003 7005 7007

V23

7313 : 7315

7308

7309

7319

VSYNC

EHT-INFO

7500 7000 7042

3300

R-CRT

G-CRT

B-CRT

B5A

OTC

TILT

OTC

POR

B1 B5

SC10

HFB_X_RAY_PROT

EHT_INFO

CUT-OFF

7300 : 7310

SCAVEM

7307 TDA6108JF

220V

+8V

3367

SVM

+8V+12V R-DL

G-DL B-DL

PROC.

SIMM

CONN.

ANTI-MOIRÉ

VSYNC

1440 1 2 3 4 5 6 7 8 9

10 11

+200V

1000 1923

29 28

B5B

3352

3351

3350

SIMM CONN.

HFB-X-RAY-PROT

PROTECTION

CIRCUIT

ANTI-MOIRÉ

7019 7020

ONE

SHOT

11ms

PWM-ANTIMOIRÉ

5300

EHT-INFO

Y-SCAVEM

R-CRT

G-CRT

B-CRT

CUTOFF

2064

SC3

+8V

6401 6402

TO BLOCK DIAGRAM DEFLECTION

7017 7018

FLIP FLOP

3036

1483

1 2 3

VG1

VG2

FG-A

3032

0.7V OR 3V

2063

FG-B

1940

2 3 4

5 6 7

9 10

SCAVEM COIL

COLD

CRT

HOT

1434

3334

3349

2318

SIN

EHT

FROM

LOT

LINE

DEFL.

E_14600_051.eps

020404

Block Diagrams, Test Point Overview, and Waveforms

Testpoint Overview Small Signal Board

27EM5.3E 6.

SSB SIDE A

1402

151

14 19 33

1303

48125

EPG

FLASH

RAM 7012

18 10

1408

B55

643252

HIP

7323

V30

1001

OTC 7001

V30

V10

V22

V29

SSB SIDE Z

7730

F764

105

104

48125

7006

1409

7729

F763

F762

7728

100

DRAM

7719

156

157

FEM

7760

100

FM1

7714

SDRAM

B53

V21

V20

7753

COLUMBUS

7752

B63 B64

B61

B54

B62

V19

F18

120

121

PICNIC

7713

81120

PROM

7711

231

B67

B66

1681

1 3

B75

B74

B68

V24

V25

V26

4 1651

30 1

B76

F104

160

B65

7651

1680

B72

B77

V28

L13

B73

B71

B70

F17

F19

B58

7301

B60

B51

HOP

F20

208

3064

B56

B57

L12

B52

F14

EAGLE

7720

DRAM

7007

V7 V6

B51

PM3394B

2V / div DC

100us / div

PM3394B

V7(F405)

PM3394B

500mV / div DC

20us / div

B52

2V / div DC

100us

L1(F100)

1 V / div DC

10µs / div

V8(F407)

1V / div DC

20us / div

PM3394B

/ div

PM3394B

1 80

B53

2V / div DC

5ms / div

L2(F101)

1 V / div DC

10µs / div

V19(F330)

1V / div DC

10us / div

PM3394B

B54

2V / div DC

5ms / div

L3(F102)

1 V / div DC

10µs / div

V20(F331)

1V / div DC

10us / div

PM3394B

B55

2V / div DC

250ns / div

l4(F104)

1 V / div DC

10ms / div

V21(F332)

1V / div DC

10us / div

PM3394B

B57

PM3394B

500mV / div AC

10us / div

L5(F105)

1 V / div DC

20µs / div

V28

PM3394B

1V / div DC

10us / div

B58

PM3394B

1V / div DC

5ms / div

L6(F162)

PM3394B

500mV / div DC

10us / div

V29

PM3394B

1V / div DC

10us / div

B60

PM3394B

500mV / div DC

10us / div

L7(F163)

PM3394B

500mV / div DC

10us / div

V30

PM3394B

1V / div DC

10us / div

B65

PM3394B

500mV / div DC

2us / div

L9(F710)

PM3394B

1V / div DC 250ns / div

B66

PM3394B

50mV / div DC

50us / div

L12

1V / div DC

10us / div

B67

PM3394B

50mV / div DC

50us / div

1 V / div DC

20µs / div

80 1

B76

1V / div DC

250ns / div

L24(F762)

1 V / div DC

10µs / div

PM3394B

F14(F407)

1V / div DC

5ms / div

L25(F763)

1 V / div DC

10µs / div

F17(F359)

1V / div DC

5ms / div

L26(F764)

1 V / div DC

10µs / div

F18

PM3394B

500mV / div DC

5ms / div

PM3394B

1V / div DC

10us / div

INDICATED ON SERVICE PRINTING

NOT INDICATED ON SERVICE PRINTING

F19

500mV / div DC

5ms / div

1V / div DC

10us / div

PM3394B

F357

PM3394B

500mV / div DC

5ms / div

V6(F404)

PM3394B

500mV / div DC

20us / div

E_14600_054.eps

260304

Block Diagrams, Test Point Overview, and Waveforms

Block Diagram Audio 1 (Exclusive Wireless Audio Details)

AUDIO

7323 TDA9320H

A11

1 2

HIP

INPUTS/ OUTPUTS

I2C IC’s overview

IIC

OTC

Block Diagrams, Test Point Overview, and Waveforms

+5V2_CON

I/O, VIDEO PROCESSING

HOP

AUDIO

DEMODULATOR

29EM5.3E 6.

B3A

PICNIC

B3D

COLUMBUS

B3C

EAGLE

B3B

FALCONIC

7001

SAA5801H

SET

PROCESSOR

3064-D5

3064-C6

3064-B7

3064-A8

SDA

SCL

M24C32

(NVM)

EEPROM

3044

B53

+5V2_CON

7011

+5V2-CON

3079

B51

+3V3-INTOTC

3001 3002

ERR

3069

B54

3088

B52

SDA-F

SCL-F

SDA-S

SCL-S

ERR

3376

3377

47 46

7323

TDA9320H

HIP

ERR

SIMM

CONN.

5918

5912

1000 1205

TUNER, SIM. CONN.

3201 3200 3261 3262

UV1318

TUNER

1200

ERR

TDA9330

3321

7301

HOP

ERR

3320

MSP3452G

AUDIO

DECODER

SDA-S

SCL-S

3656

3655

7651

ERR

1937 1

N.C.

1943

COMPAIR

CONNECTOR FOR SERVICE

(REACHABLE VIA HOLE IN REAR

COVER)

SDA-F

SCL-F

3710

3709

SAA4978H

7713

PICNIC

ERR

SDA-D

SCL-D

+5V

3758

SN-DA

SN-CL

9817 9818

A15 B15

7752-2

T6TU5XB

CTRL

ERR

C14 D14

9757 97559815 9816

33 24

7720

EAGLE1C

EAGLE

ERR

SN-DA

SN-CL

34 41

7760

SAA4998H/V1

FALCONIC

EMBEDDED

MEMORY

ERR

ADDRESS

DATA

CONTROL

7006

LH28F320BJE

PROGRAM

FLASH-RAM

7007

MSM51V18165F

DRAM

(TXT)

7012

M29W400BT

ERR

1955 1

SC1

1955

AUTOSCAVEM

7500

TDA8444T

DAC

ERR

E_14600_055.eps

260304

Block Diagrams, Test Point Overview, and Waveforms

Supply Lines Overview

SUPPLY LINES

MAINS SWITCH

220V

6525 GBU4J

GND-STB

0201

++-

HOT GROUND

PANEL

V-START

1503

2.5A

2516

-20V

(PARTLY)

1051

MAINS

SWITCH

+375V

7504 STP5NB60FP

3531

ACTIVATING

CIRCUIT

7529

T6,3A

6109

1060

3110

7502 7530

TCET1103

7506 TL431CZP

MAIN SUPPLY

0202

1501

T5A

STAND-BY SUPPLY

STARTUP

7100 7101

7102 STP3NB60

7105

A11

-20V

7120

CONTROL

CIRCUIT

-20V

A12

5113

3108 3118

A13

5102

2102

MAIN SUPPLY

CONTROL

CIRCUIT

3514

324

7507

3506

VBATT

SUP-ENABLE

ADJUSTMENT

3530

3510

3526

GND-SUPGND-STB

3507

3527

3520

6103

6514

3509

A10

5104

GND-STB

5502 5503 5504

A15

7103 OR

A16

HOT

2523 2515

5511 5516

MAINS

FILTER

5100

7104

5506 OR

5612

+11D

COLD

7501 7528

ACTIVATING

CIRCUIT

5112

3161

5111

6107

5103

6111

3113

6122

3124

3114

65355507

55096536 5513

FRAME DEFLECTION E/W DRIVE

3449

+8Vb

3550

1550 4

6110

A17

6113

6148

6130

5130

+VBATT

COLD HOT

A19

2512

2511

+13V-LOT

TDA8177

-15V-LOT

DEGAUSSING

3115

3116

1.6A

+8V6-SWITCH

7131

CONTROL

1.25A

+5V-SWITCH

7141

CONTROL

7132

5514

7620

+5.2V_MP

1149

7133 7130

1148

A21

7140

+141V

+13V-LOT

+8V-S

-15V-LOT

1502

HOT

COLD

OTC

VTUN

+11V_STBY

+11V

A18

A20

+5.2V

+5.2V_MP

+5V

+8V6

STANDBY

+16V+19V

AUDIO SUPPLY

2542

GND-AUD

2543

-16V-19V

AUDIO SUPPLY

2126

+8V6

COLD

HOT

7813

DEG. COIL

3635

ROTATING

CIRCUITRY

+11V

1601

125mA

FRONT

A10

+5V2

+8V

TUNER SIMM CONN.

VTUN

3907

L78L05

MC78M05

+8V

5902

+8V

5903

+5V2

+5V

STANDBY

AUDIO AMPLIFIER

+16V+19V

5712 5708 5711 5707

+16V+19V

-16V-19V

5735

-VS

LINE

DEFLECTION

+VBATT

5400 5401

+5V2

+11D

6464

6465

6462

6463

5410

+141V

3464

3465 3462

3463

+13V-LOT

3498

SUP-ENABLE HOT COLD

LINE DRIVE

COLD HOT

-15V-LOT

+13V-LOT

7680

TDA7052

1946 0241

4994

7911

OUTIN

7912

3941

3904

9909

9980

-16V-19V

-Vf1 22 1 2 24

7700

TDA7490

7421

LINE

OUTPUT

STAGE

5465

5463

3499

5901

7910

HOT COLD

HOT

1485

131

MAINS SWITCH

+5V STANDBY

+8V6

+5VT

5430

LOT

COLD

30EM5.3E 6.

RC5 RECEIVER

5.2V_MP

1200

TUNER

7.3

+8V

+8VS

+8VS2

+11V5

+3V3OUTIN

+16V+19V

5715 5722 5716 5723

EHT TO ANODE CRT FOCUS 1 FOCUS 2

3400

9410

3460

5461

3461

+11D +11D

FILAMENT PULSES

-Vf2 22 1 2 24

TDA7490

FILAMENT

-Vf11

PANEL ON CRT NECK

5904

6400

7702

6460

+200V

IF/IO

1403

+5V2

+8V

+5V_VDP

+8V_VDP

SIM

1205

1000

+5V2

+8V

+5VA

+3V3

SC1

1940

9982

+11V5

+8V

-VS

-Vf21

SC3

1424

+11D TO 3450 3451

1492

+5V2

+8V

5903

+8V_AUD

5904

+8V_VDP

+5V

5900

+5V_CON

5901

+5V_VDP

5902

+5V_AUD

+3V3_SIM

STANDBY

AUTOSCAVEM

+11V

+8V6

3600

9002

9908

5600

+8V_+12V

+8V

5601

+8V

PCR

+8V_+12V

1440

+8V_VDP

+5V_VDP

+5V2_CON

+5V_CON

+8V_CON

+5VA

5721

+2V5_E +2V5FCA +2V5FCD

STANDBY

+5V_AUD

+8V_AUD

+5V

+5V2

+3V3_SIM

B3A

5706

+3V3_FBX

5738

ANTI-MOIRÉ

+5V_CON

HEADPHONE

B10

AMPLIFIER

+8V_AUD

1424

1940

1492

CRT

N.C.

+8V

DAF

3807 3808

3404

3403

3809

3300

FILAMENT CRT

11VDC

+8V

SCAVEM

200V

B3C

EAGLE

5723

7720

5725 5722

5415

F500mA

5416

3402

3400

HOP

3329

3304

OTC

+8V_CON +5V2_CON

7005

+3V3_INTOTC

+5V_CON

AUDIO DEMODULATOR

3650

3644

PICNIC

7726

7727

5654

7706

5729

5733

5731

5737

5713

5745

9603

56715672

5724

5727

5726

5743

5728

5651

5652

5744

5714

+5V2

+3V3_FBX

+5V_AUD

+5DA

+5DB +8V-AUD

+5VF

+2V5B

11-7713 +3V3A

+3V3PR

+3V3_INT

+3V3FM

+3V3P

+3V3_E

+3V3FCD +3V3FC1

+3V3FC2

+1V5_E +1V5FCA +1V5FCC

+5V2_CON

+8V_CON

+5VCOM

+8VP

+8V_VDP

+5VS

+8V_VDP

+8VS

+5V_VDP

+5VS

5656

+8VA

+5DB

B3B

+5VA

FALCONIC

E_14600_056.eps

+8Vp

5404

7323

TDA9320H

HIP

+5VCOM

7307

TDA9181

+8VS

5301

7301

TDA9330H

HOP

+3V3_INTOTC

9,19,20,38,49, 75,101,111

7001

SAA5801H

OTC

104

7669

7651

6310

MSP3452G

AUDIO PROC.

+3V3_FBX

+3V3FA

5719

+2V5FB

5718

+3V3_INT

5405

6.5

5302

+8VC

9688

5653

260304

+ 79 hidden pages