Philips EM5.2E AA Service Manual

Colour Television Chassis

EM5.2E

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Contents Page Contents Page

1. Technical Specifications, Connections, and Chassis Overview 2

2. Safety 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 Overviews,

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. Circuit Diagrams and PWB Layouts Diagram PWB Main Supply (Diagram A1) 31 40-45 Stand-by Supply (Diagram A2) 32 40-45 Line Deflection (Diagram A3) 33 40-45 Frame Deflection & E/W Drive (Diagram A4) 34 40-45 Rotation Circuitry (Diagram A5) 35 40-45 Audio Amplifier (Diagram A6) 36 40-45 Tuner SIMM connector (Female) (Diagram A8) 37 40-45 Receiver (Diagram A9) 38 40-45 Front (Diagram A10) 38 40-45 Inputs/Outputs (Diagram A11) 39 40-45 SIMM connector (Male) (Diagram B1) 46 56-61 IF, I/O Videoprocessing (Diagram B2) 47 56-61 PICNIC (Diagram B3A) 48 56-61 Falconic (FEM) (Diagram B3B)49 56-61 Eagle (Diagram B3C)50 56-61 HOP (Diagram B4) 51 56-61

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.

OTC (Diagram B5A) 52 56-61 Anti Moiré (Diagram B5B)53 56-61 Audio Demodulator (Diagram B6) 54 56-61 Headphone Amplifier (Diagram B10) 55 56-61 Side I/O Panel (PV02) (Diagram D) 62 63 Side I/O Panel (FL13B) (Diagram D) 64 65 Top Control Panel (PV02) (Diagram E) 66 66 Top Control Panel (FL13B) (Diagram E) 67 68 CRT Panel (Diagram F) 69 70 DC Shift Panel (Diagram G) 71 71 I/O 3rd SCART Panel (PV02) (Diagram H) 72 73 VDAF + 2nd Orders Panel (Diagram I) 74 75 Mains Switch Panel (PV02) (Diagram J) 76 77 Mains Switch Panel (FL13B) (Diagram J) 78 79

8. Alignments 81

9. Circuit Descriptions 88 Abbreviation List 92 IC Data Sheets 94

10 Spare Parts List 95 11 Revision List 105

Published by WO 0472 Service PaCE Printed in the Netherlands Subject to modification EN 3122 785 14590

EN 2 EM5.2E AA1.

Technical Specifications, Connections, and Chassis Overview

1. Technical Specifications, Connections, and Chassis Overview

Index of this chapter:

1.1 Technical Specifications

1.2 Connection Overview

1.3 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, Real Flat Screen sizes : 28” (70 cm), 16:9

: 29” (72 cm), 4:3

: 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

1.1.2 Sound

1.2.1 Top Control and Front / Side Connections

TOP CONTROL (for PV2 styling)

VOLUME-+ - +PROGRAMMENU

TOP CONTROL (for FL13 styling)

VOLUME-+ - +CHANNELMENU

FRONT I/O

BLUE

LED

RED LED

LIGHT

SENSOR

PROXIMITY

SENSOR

(OPTIONAL)

SIDE I/O

3.5

SVHS

VIDEO

AUDIO R

AUDIO L

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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 °C Maximum humidity : 90 % R.H.

Power consumption

- Normal operation : ≈ 130 W

- Standby : < 1 W

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.

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

1.2.2 Rear Connections

ONLY FOR PV02 STYLING

EXT3

AUDIO OUT

EXT1

SERVICE

CONNECTOR

Figure 1-2 Rear View

EXT2

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Technical Specifications, Connections, and Chassis Overview

EN 3EM5.2E AA 1.

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

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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

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 (depends on type number)

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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

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

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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

EN 4 EM5.2E AA1.

1.3 Chassis Overview

CRT PANEL

SIDE I/O PANEL

SMALL SIGNAL BOARD

Technical Specifications, Connections, and Chassis Overview

TOP CONTROL PANEL

I/O 3rd SCART (ONLY FOR

PV02 STYLING)

Figure 1-6 PWB location

MAINS SWITCH PANEL

LARGE SIGNAL PANEL

DC-SHIFT (optional)

VDAF PANEL

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Safety Instructions, Warnings, and Notes

2. Safety Instructions, Warnings, and Notes

EN 5EM5.2E AA 2.

Index of this chapter:

2.1 Safety Instructions

2.2 Maintenance Instructions

2.3 Warnings

2.4 Notes

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 (> 800 VA).

• 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.

• 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.

2.3 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 earth 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.

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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.

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)

EN 6 EM5.2E AA2.

Safety Instructions, Warnings, and Notes

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.

• 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.

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.

2.4.3 Lead Free Solder

• Use only lead-free soldering tin Philips SAC305 with order code 0622 149 00106. If lead-free solder paste is required, please contact the manufacturer of your soldering equipment. In general, use of solder paste within workshops should be avoided because paste is not easy to store and to handle.

• Use only adequate solder tools applicable for lead-free soldering tin. The solder tool must be able – To reach at least a solder-tip temperature of 400°C. – To stabilise the adjusted temperature at the solder-tip. – To exchange solder-tips for different applications.

• Adjust your solder tool so that a temperature around 360°C

- 380°C is reached and stabilised at the solder joint. Heating time of the solder-joint should not exceed ~ 4 sec. Avoid temperatures above 400°C, otherwise wear-out of tips will rise drastically and flux-fluid will be destroyed. To avoid wear-out of tips, switch “off” unused equipment or reduce heat.

• Mix of lead-free soldering tin/parts with leaded soldering tin/parts is possible but PHILIPS recommends strongly to avoid mixed regimes. If not to avoid, clean carefully the solder-joint from old tin and re-solder with new tin.

• Use only original spare-parts listed in the Service-Manuals. Not listed standard material (commodities) has to be purchased at external companies.

• Special information for lead-free BGA ICs: these ICs will be delivered in so-called "dry-packaging" to protect the IC against moisture. This packaging may only be opened short before it is used (soldered). Otherwise the body of the IC gets "wet" inside and during the heating time the structure of the IC will be destroyed due to high (steam)pressure inside the body. If the packaging was opened before usage, the IC has to be heated up for some hours (around 90°C) for drying (think of ESD-protection !). Do not re-use BGAs at all!

• For sets produced before 1.1.2005, containing leaded soldering tin and components, all needed spare parts will be available till the end of the service period. For the repair of such sets nothing changes.

Philips CE is going to produce lead-free sets (PBF) from

1.1.2005 onwards. Lead-free sets will be indicated by the PHILIPS-lead-free logo on the Printed Wiring Boards (PWB):

Figure 2-2 Lead-free logo

This sign normally has a diameter of 6 mm, but if there is less space on a board also 3 mm is possible.

In case of doubt wether the board is lead-free or not (or with mixed technologies), you can use the following method:

• Always use the highest temperature to solder, when using SAC305 (see also instructions below).

• De-solder thoroughly (clean solder joints to avoid mix of two alloys).

Caution: For BGA-ICs, you must use the correct temperatureprofile, which is coupled to the 12NC. For an overview of these profiles, visit the website www.atyourservice.ce.philips.com (needs subscription, but is not available for all regions) You will find this and more technical information within the "Magazine", chapter "Workshop information". For additional questions please contact your local repairhelpdesk.

2.4.4 Practical Service Precautions

• It makes sense to avoid exposure to electrical shock.

While some sources are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held in less regard.

• Always respect voltages. While some may not be

dangerous in themselves, they can cause unexpected reactions that are best avoided. Before reaching into a powered TV set, it is best to test the high voltage insulation. It is easy to do, and is a good service precaution.

Due to lead-free technology some rules have to be respected by the workshop during a repair:

3. Directions for Use

You can download this information from the following website:

http://www.philips.com/support

Directions for Use

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Mechanical Instructions

4. Mechanical Instructions

Index of this chapter:

4.1 Service Connector (for ComPair)

4.2 Set Disassembly

4.3 Service Positions

4.4 Assies/Panels Removal

4.5 Set Re-assembly

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.

5. When all four clips are pushed down, the back cover can be removed.

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Figure 4-2 Rear cover (FL13B styling)

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For PV02 styling (for 9319 sets)

1. Manually unlock and remove the two plastic cover cups (1) (if present) on the top of TV.

2. Remove all the fixation screws of the rear cover.

3. Remove the rear cover.

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Figure 4-1 Rear cover (PV02 styling)

For FL13B styling (for 9309 and 9009 sets)

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. The openings are very small (2). Note: Some sets only have the two inner 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.

Figure 4-3 Opening

Figure 4-4 Pushing clips down

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Mechanical Instructions

EN 9EM5.2E AA 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 (for PV02 styling - 9319

sets)

1680

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Figure 4-5 Service position 1

4.3.3 Solder Side LSP

1502

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).

4.3.2 Component Side LSP

SSB top-bracket

SSB

AUTO-SCAVEM

bracket

CONNECTOR SUPPORT

bracket

Bottom tray

LOT - bracket

LSP

Figure 4-6 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).

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Figure 4-7 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. To disconnect the degaussing coil from the LSP, remove the cable from connector 1502 (1).

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

4. 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 bracket (at the left side of the SSB). Remove the two fixation screws at the bottom by the Auto-

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EN 10 EM5.2E AA4.

Mechanical Instructions

SCAVEM bracket. Lift the Auto-SCAVEM bracket slightly up, and at the same time bend the top a little away from the tuner. Now, push the bracket into the direction of the CRT, and lift it out of the LSP-bracket.

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

Figure 4-8 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.

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SSB

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Figure 4-10 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).

SAM SDM

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SSB

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Figure 4-9 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).

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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 11EM5.2E AA 4.

4.4.2 Side-I/O Assy/Panel

Figure 4-11 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).

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4.4.4 DAF Assy/Panel

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Figure 4-13 DAF-module

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 Small Signal Board (SSB)

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4.4.3 Mains Switch Assy/Panel

Figure 4-12 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).

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See paragraph “Small Signal Board (SSB)” above.

4.4.6 Large Signal Panel (LSP)

1. Remove the “I/O 3rd SCART” assy (for PV02 styling) (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 two fixation screws at the bottom by the AutoSCAVEM bracket. Lift the Auto-SCAVEM bracket slightly up, and at the same time bend the top a little away from the tuner. Now, push the bracket into the direction of the CRT, and lift it out of the LSP-bracket.

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

EN 12 EM5.2E AA5.

Service Modes, Error Codes, and Fault Finding

5. Service Modes, Error Codes, and Fault Finding

Index of this chapter:

5.1 Test Points

5.2 Service Modes

5.3 Problems and Solving Tips (related to CSM)

5.4 ComPair

5.5 Error Codes

5.6 The Blinking LED Procedure

5.7 Protections

5.8 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 = AAABBCX.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" submenu.

• 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:

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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.

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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

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(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.

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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

• 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 I can access the I and receive I

C bus of the television. ComPair can send

C 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 I 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.

C level. ComPair

C busses

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 I is therefore capable of accurately indicating problem areas. You do not have to know anything about I yourself because ComPair takes care of this.

C level) and

C commands

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 17EM5.2E AA 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

This is described in the chassis fault finding database in ComPair .

UART SERVICE

CONNECTOR

PC VCR I2CPower

I2C SERVICE CONNECTOR

9V DC

E_06532_021.eps

180804

Figure 5-2 ComPair interface connection

5.4.5 How To Order

ComPair order codes (EU/AP/LATAM):

• 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), 3122 785 60130 (year 2004).

• ComPair interface cable: 3122 785 90004.

• ComPair firmware upgrade IC: 3122 785 90510.

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

• Transformer UK: 4822 727 21633.

• Additional ComPair interface cable: 3139 131 03791.

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

Enabled protection

None

4 & 5

Plus 1, 6 & 18

Plus 2 & 16

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.

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.

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:

•I

C device errors.

•I

C bus errors.

• Protection errors.

• Errors not related to an I – 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.

C device, but of importance:

EN 18 EM5.2E AA5.

Service Modes, Error Codes, and Fault Finding

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 1200 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 /

26 SAA4998 FEM 7760 +3V (Fbx) Supply B3b

27 T6TX5EF Eagle 7724 +3V (Fbx) Supply B3c

28 Black current loop Black current loop / Video Controller /

32 M29W400BT Flash Ram (EPG) 7012 EPG Memory B5a

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.

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.

Service Modes, Error Codes, and Fault Finding

EN 19EM5.2E AA 5.

7301

EHT-info

Flash detect

HFB

I2C PROTECTIONS

HIP HOP PICNIC TUNER NVM DNR MSP TOPIC

FBX PROTECTION

PICNIC 3V3

+8V_CON

+5V_CON

I2C

HFB-XRAY-PROT

I2C

7001

CL 16532044_024.eps

Figure 5-3 Protection diagram

There are several types of protections:

•I

C related protections.

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

• HOP related protections (mainly for deflection items).

• 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 I refreshed every 200 ms. During this sequence, the I and the I An I

C ICs are checked.

C protection will take place if the SDA and SCL lines are

C controlled ICs are

short-circuited to ground, or to each other. An I 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 I

C bus). If a protection signal is detected on one

XPR (43)

HOP

FLS (5)

+8V SENSE (105)

+5V SENSE (106)

OTC

I2C

090501

C busses

C error will also

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 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).

EN 20 EM5.2E AA5.

Service Modes, Error Codes, and Fault Finding

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 I

C-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.

Vbat

FRAME

DEFL

SUP-ENABLE

220 VAC

PROT-

SENSING

CL16532044_023.eps

140501

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.

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 I

C "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).

5.8.6 Standby Supply

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

Service Modes, Error Codes, and Fault Finding

EN 21EM5.2E AA 5.

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:

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 on 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.Wh en 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.

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.

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.

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-led 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.

possible solder faults.

BAT

EN 22 EM5.2E AA5.

Personal Notes:

Service Modes, Error Codes, and Fault Finding

E_06532_012.eps

131004

Block Diagrams, Testpoint Overviews, and Waveforms

6. Block Diagrams, Testpoint Overviews, and Waveforms

Wiring Diagram

(optional)

CENTRE

TOP CONTROL PANEL

TWEETER

0215

0345

(COMPONENT VIEW)

CRT PANEL

SPEAKER

BLACK

BLACK/

WHITE

1483

1435

8483

23EM5.2E AA 6.

DEGAUSSING COIL

AQUADAG

CRT

FRAME

ROTAT ION

COIL

EHT CRT

A (LOT)

TWEETER

BLUE BLUE

RIGHT

SPEAKER

CVBS (YELLOW)

LEFT (WHITE)

RIGHT (RED)

HEADPHONE

SVHS

1992

1328

1326

1327

I/O 3rd SCART

(ONLY MODEL PV02)

3rd

SCART

21P

1680

SIDE I/O PANEL

1936

0240

19803P1981

8346

1402

5P6P

8402

8680

11P

SSB

(SMALL SIGNAL BOARD)

1402

COIL

BROWN BROWN

LEFT

SPEAKER

1434

CRT

SOCKET

RED

BLACK

1435

1424

8424

SCAVEM

CRT PANEL

1940

11P

LSP(LARGE SIGNAL PANEL)

1146

N.C.

8338

1947

N.C.

1946

1945

8981

8335

8936

1680

1000

80P

1948

8940

1943

3P compair interface

2P 2P

N.C.

1735

1951

1955

N.C.

1940

TUNER

11P

1620

1205

80P

SSB

PAN E L

1936

11P

CINCH

3P3P

1737

1738

1499

1693

SCART

8498

5205

8946

5203

1505

1502

8737

1417

8000

1625

3P 3P 3P

1491

8417

LOT

HORIZONTAL

DAF PANEL

1417 1418

2P 2P

1419

1498

1424

1492 1492

8625

1491

1497

8202

0317

DC SHIFT (OPTIONAL)

MAINS SWITCH PANEL

MAINS

SWITCH

02010202

2P2P 3P9P

MAINS CORD

0241

(optional)

SUB

WOOFER

E_14590_025.eps

101204

Block Diagrams, Testpoint Overviews, and Waveforms

Block Diagram Supply and Deflection

24EM5.2E AA 6.

SUPPLY DEFLECTION

220V

6525 GBU4K

GND-STB

HOT GROUND

MAINS SWITCH

PANEL (PARTLY)

0201

2516

-20V

1503

2.5A

-20V

1031

1051

MAINS

SWITCH

V-START

+375V

5517

7504 STP5NB60FP

3531

ACTIVATING

CIRCUIT

NOT IN PV02 MODEL

1606

T6,3A

STAND-BY SUPPLY

6109

STARTUP

3110

-20V

7502 7530

7507

TCET1103

7506 TL431CZP

7529

0202

7100 7101 7105 7120

CONTROL

CIRCUIT

CONTROL

CIRCUIT

324

MAIN SUPPLY

1505

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

3509

A10

5104

GND-STB

5107

A15

A16

2515

5502 5503 5504

MAINS

FILTER

5100

7103 OR

7104

5506

HOT

5511 5516

COLD

7501 7528

5103

3114

7 8

3550

1550 4

A17

6113

5130

2512

2511

+VBATT

5515

3537

DEGAUSSING

3115

3116

+8V6-SWITCH

7131

CONTROL

+5V-SWITCH

7141

CONTROL

7132

5514

+5.2V_MP

2118

7133 7130

7140

ACTIVATING

CIRCUIT

6110

5112

3161

6130

5111

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

LINE DEFLECTION

+VBATT

HOT COLD

LINEDRIVE 1

HOP

FRAME DEFLECTION

E/W DRIVE

EW-DRIVE 1

HOP

CURRENT

+8V6

SOURCE

3455

3456

HOP

FRAMEDRIVE +

HFB_X-RAY-PROT

5 6

3404

3459

HOP

A33

A34

3658

HOP FRAMEDRIVE -

COLD HOT

+8V6

3660

3640

7611

+11D

+5.2V

6456

A37

2403

7440-B

3419

7441

7455

7440-A

A35

3657

6627 6626 6625

3631

7612

3457

3642

A39

5 6

+8Vb

3632

6408

6407

A22

341434062492

3654

7450-B

3 2

3415

3416

A24

7409

A23

3404

TO 1693

1693

DAF

6615

A38

FRAME DEFLECTION

2457

+8Vb

3641

7614

7450-A

A36

3638

TDA8177

3643

3630

3634

DC-SHIFT (OPTIONAL)

DC-

SHIFT

CIRCUIT

5400

A25

5410

94 61

7408

COLD HOT

E/W - DRIVE

7482

5621

1 5

+13V-LOT

6620

7620

OP. AMP

A40

3623

+141V

7421 BU2520DX

SUP-ENABLE

+8V-S +141V

3492

3484

7487

7442, 7654 7653

GENERATOR

PROTECTION

-15V-LOT

400 mA

7641 7443 7652

2622 +

FLYBACK

THERMAL

1430

5401

5426

A26

3493

A45

7486

PROTECTION

CIRCUIT

ARC-PROT

PROTECTION

CIRCUIT

6622

3488

3481

3483

A42

6491

A43

A44

OUTPUT CIRCUIT

A46

5620

3620

CORR.

3647

317

318

1 2

LINE

7480

STP3NB60

3479

6499

SUP-ENABLE

-15V_LOT

3627

6619

1625

1419

1417

E/W

DRIVE

A28

2443

5461

A30

+11D

7445

A31

A32

1497

1693

1492

FILAMENT

6460

2462

2464

34993498

5430

LOT

2430

5421

6480

5467

A47

A48

3480

1 2 3

VERT. DEFL. COIL

3431

2431

+13V-LOT

3635

A50

7613

TL431

+11D +8Vb

ROTATING CIRCUITRY

TILT

OTC

HOT COLD

3636

3637

+11V_ROT

3686

7681 7682

SWITCH OFF

CIRCUIT

IN STAND-BY

5463

5465

3449

EHT

VG2

FOCUS A

FOCUS B

3450 3451

3400

3463

3462

3465

3464

A49

1601

125mA

3685

DYNAMIC FOCUS

CRT

+11D

6400

3454

FILAMENT

3460

3461

6463

6462

6465

6464

+8V-S

7680

TDA7052

2 3

3684

6080

EHT-INFO

+Vp

DAF

5800

HOR. DAF

CIRCUIT

+11D

VER. DAF

CIRCUIT

FILA-

MENT

HFB_X-RAY-PROT.

EHT-INFO

TUNER, SIM

A29

+11D

PORPOR

POR FLASH

+13V - LOT

-15V - LOT

+13V LOT

-12V8

1620

ROTATION

DEFLECTION

COIL

E_14600_050.eps

1491

PULSES

11V

HOP

AUDI O

OTC

160904

1418

HOT

COLD

1424

COLD HOT

1495

HOT COLD

LINE DEFLECTION COIL

1224

CRT

TO PAN E L ON CRT NECK

Block Diagrams, Testpoint Overviews, and Waveforms

Testpoint Overview LSP and CRT Panel

LSP COPPER TRACK SIDE

A18

154

7680

ROTATION

A17

A15 A16

A13

A14

A71

12345678910

PM3394B

2345678910

STANDBY

A10

A11

MAIN

SWITCH

PM3394B

A20

TRAFO

5100

7131 +8V6

106

7102

STANDBY

SUPPLY

PM3394B

A19

A12

A21

7141

+5V

MAINS

TRAFO

5506

7504

MAIN

SUPPLY

PM3394B

25EM5.2E AA 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

A61

A60

7421 LINE

A23

A22

49 3

2 1

LOT

A33

A35

A34

A24

A25 A50

ECB

10 11 12

A49

A38

A37

A32

FRAME

A31

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

A16

CRT PANEL (COPPER TRACK SIDE)

F15

A17

F4 F5 F6

50V / div DC

10µs / div

50V / div DC

10µs / div

PM3394B

3707

1940

50V / div DC

10µs / div

50V / div DC

10µs / div

CRT

SOCKET

F15

50V / div DC

10µs / div

10 V / div DC

10µs / div

1424

50V / div DC

10µs / div

50V / div DC

2us / div

A18

PM3394B

5V / div DC

5us / div

A41

PM3394B

200mV / div DC

2ms / 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

2V / div DC

5us / div

A35

PM3394B

500mV / div DC

2ms / div

A56

200mV / div DC

2ms / div

5V / div DC

10us / div

A36

PM3394B

200mV / div DC

10us / div

A57

PM3394B

20V / div AC

2us / div

200mV / div DC

10us / div

A37

PM3394B

500mV / div DC

2ms / div

A58

200mV / div DC

2ms / div

500mV / div DC

5ms / div

A38

PM3394B

200mV / div DC

10us / div

A59

PM3394B

10V / div DC

2us / div

5V / div DC

5ms / div

A39

PM3394B

2V / div DC

10us / div

A68

PM3394B

200mV / div DC

5us / div

20V / div DC

5us / div

A40

PM3394B

200mV / div DC

2ms / div

A69

PM3394B

2V / div DC

50us / div

A70

2V / div DC

50us / div

PM3394B

E_14590_027.eps

131204

Block Diagrams, Testpoint Overviews, and Waveforms

Block Diagram Video

VIDEO

TUNER,

SIMM-CONNECTOR (FEMALE)

4 5

6 7

8 9

CVBS-TER-OUT

+5VT

1200

TUNER

TEDE9

A69 A70

3201

SDA-S

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/SC1-IN

R/G/B/SC3-IN

3200

SCL-S

ERR

AGC

VTUN

6200 BZM55-C33

A68

IF-TER

1,2,3,4

1205

11 11

6 7

63 64

1,2,3,4

26EM5.2E AA 6.

Y50

U50

V50

VA50

HA50

AUDIO DEMODULATOR

3324

2120

Y/U/V RGB

MATRIX

V24 V26

V25

HOP

ERR

PH1-2

91413

FROM

BLOCK DIAGRAM 'CONROL'

R-TXT

G-TXT

35 36 37 38

RGB

INSERTION

OUTPUT

AMPL.

CATHODE

CALIBR.

RAMP

GEN

STARISTOP

H-DRIVE

CONTROL

B-TXT

FBL-TXT

E/W

DRIVE

FRAME

SIM

CONN.

7313 : 7315

YLTP

V27

V28

7308

3340

V29

7309

3341

V30

7319

3342

F20

E/W DRIVE

F18

FRAMEDRIVE -

FRAMEDRIVE +

F19

LINEDRIVE1

L13

7310, 7311

VSYNC

PULSE

FORMER

530us

7303

EHT-INFO

7361 7362

POR FLASH

R-CRT

G-CRT

B-CRT

3367

OTC

TILT

OTC

POR

B1 B5

1000 1923

29 28

ANTI-MOIRÉ

B5B

ANTI-MOIRÉ

VSYNC

PWM-ANTIMOIRÉ

SIM CONN.

HFB-X-RAY-PROT

PROTECTION

CIRCUIT

7019 7020

ONE SHOT 11ms

EHT-INFO

Y-SCAVEM

R-CRT

G-CRT

B-CRT

CUTOFF

2064

+8V

6401 6402

TO BLOCK DIAGRAM DEFLECTION

7017 7018

FLIP FLOP

3036

3032

0.7V OR 3V

2063

1940

2 3 4

5 6 7

9 10

PICNIC

B3A

7711

64K

M27C512

PROM

7712

74HC573D

LATCH

7713

2740

2741

2742

3727

3728

FAL CON IC

7760 SAA4998H

SAA4978H

ADC

7714 MS81V04160

FALCONIC

EMBEDDED

MEMORY

ERR

SIGNAL PROCESSING

PICNIC

SYNC PROCESSING

BUS C BUS D

FIELD

MEMORY

BUS A

BUS F

BUS G

ERR

NOT USED IF "

EAGLE"

IS PRESENT

9606

Y-PIP+MAIN-IN

9608

U-PIP+MAIN-IN

9607

V-PIP+MAIN-IN

3713

3714

3715

VA50

HA50

B3B B3C

EAGLE

7722 MS81V04160A

FIELD

MEMORY

FIELD

MEMORY

7723 MS81VO4160A

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

Y-O U T

DAC

U-OUT

V-OU T

7724 T8F24EF

EAGLE

Y_EAGLE_E

U_EAGLE_E

V_EAGLE_E

VD_E

HD_E

DAC

ERR

VD100

HD100

7728

7729

7730

Y_EAGLE_E

U_EAGLE_E

V_EAGLE_E

VD_E

HD_E

Y100

U100

V100

OUTPUT

FILTER

3721

7703

OUTPUT

FILTER

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

7301 TDA9330

2323

2431

2321

F17

L12

V23

V22

HFB-X-RAY-PROT

HFB

DYN-FASE-COR.

YUV

RGB YUV

MATRIX

PH1-1

12MHz

1301

SIM CONN. (MALE)

6 7

63 64

1,2,3,4

5403

40,4

AGC

MONITOR

IF, I/O VIDEOPROC. (HIP)

7402

SAW FILTER

VIDEO

VIF1 VIF2

1410 1408

SAW FILTER

AUDIO

SIF2 SIF1

1409

1411 7410

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

PSS-AM

CVBS-TER-OUT

GROUP

DELAY

COR.

7322

HIP

ERR

SEE BLOCK DIAGRAM AUDIO

3377

3376

CVBS-TXT

OTC

7307

7320

TDA9181

26 291628

VIDEO

SWITCH

CONTROL

16 28

20 21

23 24

N.C.

V10

COMB

FILTER

SYNC

SEPAR.

CVBS PIP

PROC.

SCART1

36 37 38 39

7412

Y/U/V

SWITCH

VY V

DECODER

PAL

NTSC

SECAM

V-SYNC

PROC.

H-SYNC

PROC.

RGB

MATRIX

RGB

41 42 43 40

7404

F14

(N.C.)

1305

4.43MHz

1308

3.57MHz

SCART2

1000

C-SC2-SVHS-IN

CVBS-TER-OUT

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

CVBS-SC2MON-OUT

C-FRONT-IN

CRT/SCAVEM PANEL

1940

N.C. HFB_X-RAY_PROT

2 3

EHT-INFO

Y-SCAVEM

FROM

1424

(LINE

DEFL.)

5 6

+8V R-CRT

G-CRT

B-CRT

9 10 11

CUTOFF

1424

HFB_X-RAY_PROT

200V

EHT-INFO

N.C.

3417

F15

3341

SIDE I/O

1936

0240

2 4

7902

7908

7901

C/16:9

SVHS

251

CVBS

INPUT/OUTPUT (VIDEO PART)

A11

SCART 2

1901-A 21

SC2-CVBS-MON OUT

C-SC2-SVHS-IN

SC2-C-OUT

TER-CVBS-OUT

R/G/B/SC1-IN

SCART 1

1901-B 21

FBL

Y_CVBS-SC2_AV2-IN

P50

CVBS-SC1-AV1-IN

SC1-FBL-IN

SC1-STATUS

SEL-SVHS-RR-STATUS 2

SEE BLOCK DIAGRAM DEFLECTION

OTC

Y_CVBS-SC2_AV2-IN

CVBS-SC1-AV1-IN

OTC

RG/B/SC3-IN

I/O 3RD SCART (VIDEO PART)

(ONLY FOR PV02)

SCART 3

1992

CVBS-AV3-IN

FBL

14021402

FBL

STATUS-SC3

1680

565

AUDIO

DEMO

1680

OTC

CVBS-AV3-IN

5126 4

+8V

FILAMENT

+200V

3300

7300 : 7310

7307 TDA6108JF

+8V

SCAVEM

PROC.

220V

+200V

3334

3352

3351

3350

3349

2318

1483

SC3

5300

1 2

SCAVEM COIL

HOT

COLD

CRT

VG1

VG2

FG-A

FG-B

1434

SIN

EHT

FROM

LOT

LINE

DEFL.

E_14590_026.eps

131204

Block Diagrams, Testpoint Overviews, and Waveforms

Testpoint Overview Small Signal Board

27EM5.2E AA 6.

SSB SIDE A

1402

151

19 33

1303

48125

EPG

FLASH

RAM 7012

18 10

1408

B55

643252

HIP

7323

V30

100

1001

OTC 7001

V30

V22

V10

V29

FM5

7723

V28

120

V25

L13

V24

V26

B73

4 1651

B71

PROM

7711

30 1

B76

231

B67

B66

SSB SIDE Z

100

25 FEM 7760

1002676

FM1

7714

81120

121

PICNIC

1681

160

B75 B74

F104

B65

7651

B68

1680

B70

7713

B61

B62

F330

F18

B54

F359

F19

B58

B53

F710

F163

F102

F101

F100

F332

F331

B63 B64

F162

F105

B72

B77

FM4

7722

26 50

B60

B51

3064

B56

B57

F407

HOP 7301

F357

L12

B52

F407

F405 F404

208

DRAM

7007

EAGLE

7720

157

104

48125

7006

1409

156

105

B51

2V / div DC

100us / div

F14

1V / div DC

5ms / div

L12

1V / div DC

10us / div

PM3394B

1 80

B52

2V / div DC

100us / div

F17

1V / div DC

5ms / div

1V / div DC

10us / div

PM3394B

B53

PM3394B

2V / div DC

5ms / div

F18

PM3394B

500mV / div DC

5ms / div

PM3394B

1V / div DC

10us / div

B54

PM3394B

2V / div DC

5ms / div

F19

PM3394B

500mV / div DC

5ms / div

PM3394B

1V / div DC

10us / div

B55

PM3394B

2V / div DC

250ns / div

F20

PM3394B

500mV / div DC

5ms / div

PM3394B

500mV / div DC

20us / div

B57

PM3394B

500mV / div AC

10us / div

PM3394B

1V / div DC

10us / div

PM3394B

500mV / div DC

20us / div

B58

1V / div DC

5ms / div

1 V / div DC

10µs / div

1V / div DC

20us / div

PM3394B

B60

PM3394B

500mV / div DC

10us / div

1 V / div DC

10µs / div

PM3394B

2V / div DC

200us / div

B65

PM3394B

500mV / div DC

2us / div

1 V / div DC

10µs / div

V10

PM3394B

2V / div DC 200us / div

B66

PM3394B

50mV / div DC

50us / div

1 V / div DC

10ms / div

V19

1V / div DC

10us / div

80 1

B67

PM3394B

50mV / div DC

50us / div

1 V / div DC

20µs / div

V20

1V / div DC

10us / div

B74

PM3394B

2V / div DC

20ms / div

PM3394B

500mV / div DC

10us / div

V21

1V / div DC

10us / div

B75

PM3394B

2V / div DC

20ms / div

PM3394B

500mV / div DC

10us / div

V28

PM3394B

1V / div DC

10us / div

B76

1V / div DC

250ns / div

1 V / div DC

20µs / div

V29

1V / div DC

10us / div

PM3394B

1V / div DC

250ns / div

V30

1V / div DC

10us / div

PM3394B

INDICATED ON SERVICE PRINTING

NOT INDICATED ON SERVICE PRINTING

E_14590_028.eps

131204

Block Diagrams, Testpoint Overviews, 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

+5V2_CON

I/O, VIDEO PROCESSING

HOP

29EM5.2E AA 6.

AUDI O

DEMODULATOR

B3A

PICNIC

B3B

FALCONIC

B3C

EAGLE

7001

SAA5801H

SET

PROCESSOR

3064-D5

3064-C6

3064-B7

3064-A8

SDA

SCL

EEPROM

3044

B53

+5V2_CON +5V2-CON

3079

B51

+3V3-INTOTC

3001 3002

7011

M24C32

(NVM)

ERR

3069

B54

3088

B52

SDA-F

SCL-F

SDA-S

SCL-S

ERR

3377

3376

7323

TDA9320H

HIP

ERR

SIM.

CONN.

5918

5912

1000 1205

TUNER, SIM. CONN.

3201 3200 3261 3262

1200

UV1318S

TUNER

ERR

TDA9330

3321

7301

HOP

ERR

3320

1937 1

N.C.

1943

COMPAIR CONNECTOR FOR SERVICE

(REACHABLE VIA HOLE IN REAR

COVER)

3655

7651

MSP3452G

AUDIO

DECODER

ERR

SDA-F

SCL-F

3656

3710

3709

7713

SAA4978H

PICNIC

ERR

SDA-D

SCL-D

+5V

3758

SN-DA

SN-CL

7760

SAA4998H

FALCONIC

EMBEDDED

MEMORY

ERR

9741-D5

9741-C6

SN-DA-E

SN-CL-E

32 26

7724

T8F24EF

EAGLE

ERR

ADDRESS

DATA

CONTROL

7006

LH28F320BJE

PROGRAM

FLASH-RAM

7007

MSM51V18165F

DRAM

(TXT)

7012

M29W400BT

ERR

E_14590_029.eps

211004

Block Diagrams, Testpoint Overviews, and Waveforms

Supply Lines Overview

SUPPLY LINES

MAINS SWITCH

PANEL

(PARTLY)

NOT IN PV02 MODEL

1060

T6,3A

STAND-BY SUPPLY

6109

3110

7502 7530

TCET1103

7506 TL431CZP

7529

220V

6525 GBU4J

GND-STB

0201

++-

HOT GROUND

1503

2.5A

2516

-20V

1051

MAINS

SWITCH

V-START

+375V

7504 STP5NB60FP

3531

ACTIVATING

CIRCUIT

7507

0202

STARTUP

7100 7101 7105 7120

-20V

CONTROL

CIRCUIT

324

0202

7102 STP3NB60

A11

CONTROL

CIRCUIT

3108 3118

-20V

MAIN SUPPLY

3506

3530

3510

3526

SUP-ENABLE

MAIN SUPPLY

1501

T5A

3509

A10

5104

5113

3514

3507

3527

3520

6103

6514

A15

A16

2523 2515

GND-STB

A12

A13

5102

2102

VBATT ADJUSTMENT

GND-SUPGND-STB

5502 5503 5504

MAINS FILTER

7103 OR

5506 OR

HOT

5100

7104

5612

5511 5516

5103

3114

COLD

FRAME DEFLECTION E/W DRIVE

3449

+11D

3550

1550 4

6110

A17

6113

6148

6130

5130

+VBATT

COLD HOT

A19

2512

2511

7131

7141

+13V-LOT

TDA8177

-15V-LOT

+5.2V_MP

DEGAUSSING

3115

3116

1149

1.6A

+8V6-SWITCH

CONTROL

1148

1.25A

+5V-SWITCH

CONTROL

7132

5514

+13V-LOT

7620

-15V-LOT

7501 7528

ACTIVATING

CIRCUIT

5112

3161

5111

6107

6111

3113

6122

3124

65355507

55096536 5513

+8Vb

COLD

VTUN

A20

7133 7130

A21

7140

STANDBY

+16V+19V

AUDIO SUPPLY

2542

2543

-16V-19V

AUDIO SUPPLY

+141V

+8V-S

1502

HOT

OTC

+11V_STBY

+11V

A18

+5.2V

+5.2V_MP

+5V

+8V6

GND-AUD

2126

+8V6

COLD

HOT

7813

DEG. COIL

3635

RO TATI NG

CIRCUITRY

+11V

A10

5902

+VBATT

SUP-ENABLE

HOT COLD

LINE DRIVE

COLD HOT

-15V-LOT

+13V-LOT

+11V

1601

125mA

FRONT

+5V2

+8V

TUNER SIM CONN.

VTUN 9

3907

L78L05

MC78M05

+8V

5903

+5V2

+5V

STANDBY

AUDIO AMPLIFIER

+16V+19V

5712 5708 5711 5707

+16V+19V

-16V-19V

5735

-VS

LINE DEFLECTION

5400 5401

+141V

+5V2

5410

+11D

3464

6464

3465 3462

6465

6462

3463

6463

+13V-LOT

3498

7680

TDA7052

1946 0241

4994

3910

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

30EM5.2E AA 6.

RC5 RECEIVER

5.2V_MP

1200

TUNER

7.3

+8V

+8VS

+8VS2

+11V5

+3V3OUTIN

+16V+19V

5715 5722 5716 5723

3400

9410

3460

5461

3461

+11D +11D

FILAMENT PULSES

-Vf2

22 1 2 24

EHT TO ANODE CRT

FOCUS 1

FOCUS 2

FILAMENT

-Vf11

PANEL ON CRT NECK

5904

7702

TDA7490

6400

6460

+200V

IF/IO

1403

+5V2

+8V

+5V_VDP

+8V_VDP

SIM

1205

1000

1940

N.C.

5903

5904

5900

5901

5902

STANDBY

+5V2

+8V

+8V_AUD

+8V_VDP

+5V

+5V_CON

+5V_VDP

+5V_AUD

+3V3_SIM

B10

1940

1424

1492

+8V_+12V

ANTI-MOIRÉ

+5V_CON

HEADPHONE AMPLIFIER

+8V_AUD

CRT

N.C.

3300

3404

3403

DAF

3809

3807 3808

+8V

SCAVEM

200V

FILAMENT CRT

11VDC

B3C

EAGLE

7720

5723

5725

5722

+8V_CON

+5VA

5721

+2V5_E

+2V5FCA

+2V5FCD

+8V_VDP

+5V_VDP

+5V2_CON

+5V_CON

STANDBY

+5V_AUD

+8V_AUD

+5V

+5V2

+3V3_SIM

B3A

5706

+3V3_FBX

5738

+5V2

+8V

+5VA

+3V3

9982

+11V5

+8V

-VS

-Vf21

1424

+11D TO 3450 3451

1492

5415

F500mA

5416

3402

3400

HOP

3329

3304

OTC

+8V_CON +5V2_CON

7005

+3V3_INTOTC

+5V_CON

AUDIO DEMODULATOR

5714

5651

5652

+5V2

+3V3_FBX

5744

+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

3650

3644

5654

PICNIC

7706

5729

5733

5731

5737

5713

5745

7726

7727

9603

56715672

5724

5727

5726

5743

5728

+5V2_CON

+8V_CON

+5VCOM

+8VP

+8V_VDP

+5VS

+8V_VDP

+8VS

+5V_VDP

+5VS

5656

+8VA

+5DB

B3B

+5VA

FALCONIC

E_14590_030.eps

+8Vp

5404

7323

TDA9320H

+5VCOM

7307

TDA9181

+8VS

5301

7301

TDA9330H

HOP

+3V3_INTOTC

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

7001

SAA5801H

OTC

104

7669

6310

MSP3452G

5719

5718

HIP

6.5

7651

AUDIO PROC.

+3V3_FBX

+3V3FA

+2V5FB

+3V3_INT

211004

5653

5405

5302

+8VC

9688

+ 76 hidden pages