Philips EM1A Servise Manual Download

Page: 49 / 54

Spare parts list

GB 99

EM1A

10.

3316

4822 117 11148 56k 1% 0.1W

3318

4822 051 20478 4

Ω

7 5% 0.1W

3319

4822 051 10102 1k 2% 0.25W

3321

4822 053 12472 4k7 5% 3W

3322

4822 051 20101 100

Ω

5% 0.1W

3334

4822 050 11002 1k 1% 0.4W

3335

4822 051 10102 1k 2% 0.25W

3336

4822 051 10102 1k 2% 0.25W

3337

4822 051 10102 1k 2% 0.25W

3338

3198 013 01020 1k 20% 0.5W

3339

3198 013 01020 1k 20% 0.5W

3340

3198 013 01020 1k 20% 0.5W

3341

4822 052 10151 150

Ω

5% 0.33W

3342

4822 051 20471 470

Ω

5% 0.1W

3343

4822 050 22202 2k2 1% 0.6W

3345

4822 116 52191 33

Ω

5% 0.5W

3347

3198 013 01520 1k5 20% 0.5W

3348

4822 050 22202 2k2 1% 0.6W

3349

3198 013 01020 1k 20% 0.5W

3350

4822 116 83883 470

Ω

5% 0.5W

3351

4822 116 83883 470

Ω

5% 0.5W

3352

4822 116 83883 470

Ω

5% 0.5W

3354

4822 117 11449 2k2 5% 0.1W

3355

4822 051 20478 4

Ω

7 5% 0.1W

3356

4822 051 10102 1k 2% 0.25W

3357

4822 051 20478 4

Ω

7 5% 0.1W

3358

4822 117 11139 1k5 1% 0.1W

3365

4822 051 20478 4

Ω

7 5% 0.1W

3402

4822 117 10837 100k 1% 0.1W

3403

4822 051 20101 100

Ω

5% 0.1W

3404

4822 051 20471 470

Ω

5% 0.1W

3406

4822 051 20101 100

Ω

5% 0.1W

3407

4822 117 10833 10k 1% 0.1W

3408

4822 117 11504 270

Ω

1% 0.1W

3409

4822 050 11002 1k 1% 0.4W

3410

4822 051 20479 47

Ω

5% 0.1W

3411

4822 116 52193 39

Ω

5% 0.5W

3414

4822 117 13577 330

Ω

1% 1.25W

3415

3198 012 31590 15

Ω

5% 3W

3417

4822 116 52176 10

Ω

5% 0.5W

3418

4822 050 23303 33k 1% 0.6W

3431

4822 052 10331 330

Ω

5% 0.33W

3450

4822 116 52238 12k 5% 0.5W

3451

4822 116 52303 8k2 5% 0.5W

3460

4822 052 10108 1

Ω

5% 0.33W

3461

4822 052 10108 1

Ω

5% 0.33W

3462

4822 052 10108 1

Ω

5% 0.33W

3463

4822 052 10108 1

Ω

5% 0.33W

3464

4822 052 11108 1

Ω

5% 0.5W

3465

4822 052 11108 1

Ω

5% 0.5W

3466

4822 052 10228 2

Ω

2 5% 0.33W

3467

4822 052 10228 2

Ω

2 5% 0.33W

3468

4822 052 11688 6

Ω

8 5% 0.5W

3469

4822 116 52175 100

Ω

5% 0.5W

3470

4822 051 20472 4k7 5% 0.1W

3471

4822 117 11507 6k8 1% 0.1W

3472

4822 051 20393 39k 5% 0.1W

3473

4822 117 10834 47k 1% 0.1W

3474

4822 117 10833 10k 1% 0.1W

3476

4822 116 83874 220k 5% 0.5W

3477

4822 117 10833 10k 1% 0.1W

3478

4822 117 11503 220

Ω

1% 0.1W

3481

4822 116 52175 100

Ω

5% 0.5W

3484

4822 051 10102 1k 2% 0.25W

3485

4822 051 10102 1k 2% 0.25W

3486

4822 051 20472 4k7 5% 0.1W

3487

4822 051 20223 22k 5% 0.1W

3489

4822 117 11449 2k2 5% 0.1W

3490

4822 051 20223 22k 5% 0.1W

3495

4822 050 23303 33k 1% 0.6W

3496

4822 050 11002 1k 1% 0.4W

3497

4822 051 20101 100

Ω

5% 0.1W

3498

4822 051 10102 1k 2% 0.25W

3499

4822 051 20101 100

Ω

5% 0.1W

3500

4822 117 12074 1

Ω

5 10% 7W

3501

3198 013 04710 470

Ω

20% 0.5W

3504

4822 116 83883 470

Ω

5% 0.5W

3505

4822 051 20683 68k 5% 0.1W

3506

4822 117 10834 47k 1% 0.1W

3507

4822 050 21604 160k 1% 0.6W

3508

3198 012 16820 6.8k.1W

3509

2322 595 90022 VDR DC 1mA/612V

3510

4822 117 11951 2k 1% 0.1W

3511

4822 116 52276 3k9 5% 0.5W

3512

4822 116 52297 68k 5% 0.5W

3513

4822 116 52272 330k 5% 0.5W

3514

3198 012 16870 0

Ω

68 5% 1W

3515

2322 193 53128 1

Ω

2 5%

3516

4822 116 10075 9

Ω

220V

3517

4822 051 20472 4k7 5% 0.1W

3518

4822 116 52234 100k 5% 0.5W

3519

4822 051 20223 22k 5% 0.1W

3520

4822 053 11333 33k 5% 2W

3521

4822 117 10118 1M 5% 0.5W

3522

4822 116 83961 6k8 5%

3523

4822 051 20105 1M 5% 0.1W

3524

4822 051 10102 1k 2% 0.25W

3525

4822 051 20479 47

Ω

5% 0.1W

3526

4822 116 83303 10

Ω

3527

4822 117 11454 820

Ω

1% 0.1W

3528

4822 117 10833 10k 1% 0.1W

3529

4822 051 20472 4k7 5% 0.1W

3530

4822 116 52297 68k 5% 0.5W

3531

4822 117 10833 10k 1% 0.1W

3533

4822 051 20159 15

Ω

5% 0.1W

3535

4822 051 20184 180k 5% 0.1W

3536

4822 051 20684 680k 5% 0.1W

3537

4822 051 20223 22k 5% 0.1W

3540

4822 117 10834 47k 1% 0.1W

3542

3198 012 11570 0

Ω

15 5% 1W

3543

4822 117 11504 270

Ω

1% 0.1W

3544

4822 051 20479 47

Ω

5% 0.1W

3545

4822 051 20471 470

Ω

5% 0.1W

3600

4822 050 24704 470k 1% 0.6W

3601

4822 050 24704 470k 1% 0.6W

3602

4822 051 20822 8k2 5% 0.1W

3603

4822 101 11186 470

Ω

30% lin 0.1W

3604

4822 051 20471 470

Ω

5% 0.1W

3605

4822 051 20273 27k 5% 0.1W

3606

4822 051 10102 1k 2% 0.25W

3607

4822 051 20223 22k 5% 0.1W

3608

4822 051 20223 22k 5% 0.1W

3609

4822 101 11192 22k 30% lin 0.1W

3610

4822 051 20333 33k 5% 0.1W

3612

4822 051 20274 270k 5% 0.1W

3613

4822 051 20274 270k 5% 0.1W

3614

4822 050 21504 150k 1% 0.6W

3615

4822 116 52292 560k 5% 0.5W

3616

4822 116 52285 470k 5% 0.5W

3617

4822 050 11002 1k 1% 0.4W

3618

4822 051 10102 1k 2% 0.25W

3619

4822 051 20562 5k6 5% 0.1W

3620

4822 116 80176 1

Ω

5% 0.5W

3621

4822 116 80176 1

Ω

5% 0.5W

3622

4822 116 80176 1

Ω

5% 0.5W

3623

4822 051 20223 22k 5% 0.1W

3624

4822 052 10158 1

Ω

5 5% 0.33W

3625

4822 116 83872 220

Ω

5% 0.5W

3626

4822 116 83872 220

Ω

5% 0.5W

3627

4822 116 52238 12k 5% 0.5W

3628

5322 116 53564 3

Ω

3 5% 0.5W

3630

4822 051 10102 1k 2% 0.25W

3631

4822 051 20472 4k7 5% 0.1W

3632

4822 117 10833 10k 1% 0.1W

3633

4822 117 11449 2k2 5% 0.1W

3639

4822 051 20105 1M 5% 0.1W

3640

4822 116 52257 22k 5% 0.5W

3641

4822 117 10833 10k 1% 0.1W

3642

4822 117 10833 10k 1% 0.1W

3643

4822 051 20223 22k 5% 0.1W

3644

4822 117 10833 10k 1% 0.1W

3645

4822 116 52272 330k 5% 0.5W

3652

4822 051 20101 100

Ω

5% 0.1W

3653

4822 051 20472 4k7 5% 0.1W

3661

4822 051 10102 1k 2% 0.25W

3662

4822 051 20225 2M2 5% 0.1W

3663

4822 051 20332 3k3 5% 0.1W

3665

4822 051 20684 680k 5% 0.1W

3701

4822 117 10833 10k 1% 0.1W

3702

4822 117 10833 10k 1% 0.1W

3703

4822 117 10833 10k 1% 0.1W

3705

4822 051 20122 1k2 5% 0.1W

3706

4822 051 20122 1k2 5% 0.1W

3707

4822 051 20122 1k2 5% 0.1W

3708

4822 116 83961 6k8 5%

3710

4822 051 10102 1k 2% 0.25W

3711

4822 117 10833 10k 1% 0.1W

3714

4822 051 20472 4k7 5% 0.1W

3715

4822 051 10102 1k 2% 0.25W

3716

4822 117 11139 1k5 1% 0.1W

3717

4822 051 20472 4k7 5% 0.1W

3718

4822 116 52243 1k5 5% 0.5W

3719

4822 051 10102 1k 2% 0.25W

3730

4822 117 10833 10k 1% 0.1W

3731

4822 117 10833 10k 1% 0.1W

3732

4822 051 20822 8k2 5% 0.1W

3733

4822 051 20822 8k2 5% 0.1W

3734

4822 117 10834 47k 1% 0.1W

3735

4822 117 10834 47k 1% 0.1W

3736

4822 051 10102 1k 2% 0.25W

3737

4822 051 10102 1k 2% 0.25W

3738

4822 117 11148 56k 1% 0.1W

3739

4822 117 11148 56k 1% 0.1W

3740

4822 051 20683 68k 5% 0.1W

3741

4822 051 20683 68k 5% 0.1W

3742

4822 116 52199 68

Ω

5% 0.5W

3743

4822 116 52199 68

Ω

5% 0.5W

3744

4822 117 11503 220

Ω

1% 0.1W

3745

4822 117 11503 220

Ω

1% 0.1W

3750

4822 117 10834 47k 1% 0.1W

3756

4822 117 10833 10k 1% 0.1W

3757

4822 117 10837 100k 1% 0.1W

3758

4822 117 10837 100k 1% 0.1W

3762

4822 051 20828 8

Ω

2 5% 0.1W

3763

4822 117 10837 100k 1% 0.1W

3765

4822 117 11507 6k8 1% 0.1W

3770

4822 117 10834 47k 1% 0.1W

3773

4822 051 20154 150k 5% 0.1W

3784

4822 051 20828 8

Ω

2 5% 0.1W

3789

4822 051 20828 8

Ω

2 5% 0.1W

3790

4822 051 20822 8k2 5% 0.1W

3792

4822 051 20822 8k2 5% 0.1W

3794

4822 116 52195 47

Ω

5% 0.5W

3798

4822 116 52249 1k8 5% 0.5W

3908

4822 116 52201 75

Ω

5% 0.5W

3909

4822 116 52201 75

Ω

5% 0.5W

3910

4822 051 20101 100

Ω

5% 0.1W

3911

4822 116 52201 75

Ω

5% 0.5W

3913

4822 116 52201 75

Ω

5% 0.5W

3915

4822 116 52201 75

Ω

5% 0.5W

3919

4822 051 10102 1k 2% 0.25W

3920

4822 051 10102 1k 2% 0.25W

3925

4822 052 10688 6

Ω

8 5% 0.33W

3928

4822 051 20101 100

Ω

5% 0.1W

3929

4822 117 10833 10k 1% 0.1W

3930

4822 051 20561 560

Ω

5% 0.1W

3932

4822 116 52201 75

Ω

5% 0.5W

3935

4822 116 52201 75

Ω

5% 0.5W

3936

4822 117 10353 150

Ω

1% 0.1W

3937

4822 117 10353 150

Ω

1% 0.1W

3940

4822 117 10353 150

Ω

1% 0.1W

3941

4822 117 10353 150

Ω

1% 0.1W

3944

4822 051 10102 1k 2% 0.25W

3946

4822 051 10102 1k 2% 0.25W

3950

4822 116 52249 1k8 5% 0.5W

3970

4822 051 20121 120

Ω

5% 0.1W

3971

4822 117 10833 10k 1% 0.1W

3972

4822 117 10833 10k 1% 0.1W

3991

4822 116 52175 100

Ω

5% 0.5W

3992

4822 116 52175 100

Ω

5% 0.5W

3993

4822 051 20101 100

Ω

5% 0.1W

3995

4822 116 52175 100

Ω

5% 0.5W

3996

4822 116 52175 100

Ω

5% 0.5W

3997

4822 116 52175 100

Ω

5% 0.5W

4xxx

4822 051 10008 0

Ω

5% 0.25W

4xxx

4822 051 20008 0

Ω

5% 0.25W

5101

8204 000 73591 TFM standby

5102

4822 157 70436 8.2

5103

4822 526 10704 Bead 100mHz

5104

4822 157 11411 Bead 100mHz

5105

4822 157 11411 Bead 100mHz

5110

4822 157 11411 Bead 100mHz

5115

4822 157 11411 Bead 100mHz

5120

3198 018 16870 680nF 10%

5200

4822 157 11775 6.8

H 5%

5203

4822 157 71206 Coil

5204

4822 157 71206 Coil

5205

4822 157 71206 Coil

5400

4822 157 11869 33

H 10%

5410

2422 531 02447 TFM sig driver

5411

4822 157 71097 0.56

5421

2422 536 00102 Coil lincor 6

5422

2422 531 02357 Bridge coil

5426

4822 157 70826 2.4

5430

3128 138 21091 TFM LOT slot

5461

4822 157 11411 Bead 100mHz

5463

4822 157 11411 Bead 100mHz

5465

4822 157 11411 Bead 100mHz

5466

4822 157 11869 33

H 10%

5467

4822 157 11411 Bead 100mHz

5468

4822 157 11737 22

H 10%

5469

3198 018 11890 18U 5%

5494

4822 157 11855 68

H 10%

5502

4822 157 11411 Bead 100mHz

5504

2422 549 43286 Bridge coil

5505

4822 157 11411 Bead 100mHz

5506

2422 531 98042 TFM SMT

5510

4822 157 11411 Bead 100mHz

5620

4822 157 11771 0.09

H 10%

6103

4822 130 42488 BYD33D

6105

4822 130 34281 BZX79-B15

6106

4822 130 34398 BZX79-B24

6108

4822 130 30621 1N4148

6109

4822 130 31083 BYW55

Summary of Contents for EM1A

Page 1: ...ew 32 Testpoint overview LSP 33 Testpoint overview SSB DW CRT panel 34 7 Electrical diagram s en PWB s Diagram PWB Main supply Diagram A1 35 43 48 Standby supply Diagram A2 36 43 48 Line deflection Diagram A3 37 43 48 Frame deflection Diagram A4 38 43 48 Audio amplifier Diagram A5 39 43 48 Headphone amplifier Diagram A6 40 43 48 Tuner I O SIMM connector Diagram A7 41 43 48 Front control Diagram A8...

Page 2: ... buttons Side I O connections Figure 1 1 SVHS 1 gnd v 2 gnd v 3 Y 1 Vpp 75 Ω j 4 C 0 3 Vpp 75 Ω j Audio video 1 Video 1 Vpp 75 Ω jq 2 Audio L 0 2 Vrms 10 kΩ jq 3 Audio R 0 2 Vrms 10 kΩ jq 4 Headphone 32 2000 Ω 10 mW rt 1 2 2 Rear connections Figure 1 2 Monitor out 1 Video 1 Vpp 75 Ω kq 2 Audio L 0 5 Vrms 10 kΩ kq 3 Audio R 0 5 Vrms 10 kΩ q AV1 in 1 Y 0 7 Vpp 75 Ω jq 2 Pb 0 7 Vpp 75 Ω jq 3 Pr 0 7 V...

Page 3: ...verview GB 3 EM1A 1 1 3 Chassis overview Figure 1 3 CL 06532130_003 eps 181000 LARGE SIGNAL PANEL SMALL SIGNAL BOARD B A CRT SCAVEM PANEL F MAINS SWITCH PANEL J MAINS HARMONIC PANEL Y SIDE I O PANEL D PIP DOUBLE WINDOW PANEL C TOP CONTROL PANEL E DAF PANEL I ...

Page 4: ...net should be checked for defects to avoid touching of any inner parts by the customer 2 2 Maintenance instructions It is recommended to have a maintenance inspection carried out by a qualified service employee The interval depends on the usage conditions When the set is used under normal circumstances for example in a living room the recommended interval is 3 to 5 years When the set is used in ci...

Page 5: ... with D and without E aerial signal Voltages in the power supply section are measured both for normal operation G and in Standby F These values are indicated by means of the appropriate symbols The picture tube PWB 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 ...

Page 6: ... key The request DELETE appears next to the selected channel number or source Press the cursor right to delete Press the SURF key repeatedly to scroll through the selected channels or sources Cursor Up Down allows you to select the next or previous item on the menu and to select another picture format Left Right allows you to access the sub menus and adjust the settings V Volume Increases or decre...

Page 7: ...t character You can key up to a maximum of 5 characters Press the MENU key to store the named channel Naming of channels INSTALL LANGUAGE AUTO STORE MANUAL STORE SORT CHANNEL EDIT NAME INSTALL LANGUAGE AUTO STORE MANUAL STORE SORT CHANNEL EDIT ƒ NAME SORT FROM TO EXCHANGE EXCHANGED 3 4 5 6 7 SKIPPED INSTALL LANGUAGE AUTO STORE MANUAL STORE SORT CHANNEL EDIT NAME CNN Manual tuning allows you to sto...

Page 8: ...t x of your TV Better playback quality can be obtained if you also connect the Video Audio Left and Right only for stereo equipment cables 3 to the VIDEO AUDIO L Mono and R input AV2 IN Note in case of mono equipment only the left loudspeaker reproduces sound Use a mono to stereo adaptor not supplied for sound reproduction via all internal loudspeakers The MONITOR OUT connectors can be used for da...

Page 9: ...on the right side of the TV Switch on the equipment é Select the correct external on your TV and on your video recorder Set your video recorder to record You record what you are watching on the screen Do not switch channel numbers or do not switch off your TV when you are recording Record with your video recorder Connect your camera or camcorder to sockets at the right side of your TV é Connect th...

Page 10: ...e the VOLUME Check that the television is not muted press the button on the remote control When no signal is detected the television automatically switches off the sound This is proper operation and does not indicate a malfunction Check the transmission system s sound settings of this set Adjust the contrast and brightness setting or select another picture setting with the smart picture key Check ...

Page 11: ...le and pull backward 3 Remove Mains switch module from bottomplate see description below 4 Free the necessary wiring from their fixation clamps for the ease of handling 5 Sometimes a cable must be disconnected for the ease of handling like the degaussing coil 0020 and loudspeaker 1735 1736 1737 cables 6 Now reposition following modules in order to cope with the LSP service position DAF module from...

Page 12: ...original position but for ease of use a SSB extension board is available under number 9965 000 05769 Before usage of this board the LSP top bracket has to be taken out This can be done by 1 Remove the DAF panel see 4 2 5 2 Remove the 2 screws which hold the bracket at the right side 3 Lift the bracket at the same side It hinges at the cooling plate Note For some type numbers the LSP has to be move...

Page 13: ...B while sliding the module in the direction of the CRT 2 2 The board can easily be lifted from its bracket after releasing the 2 fixation clamps 3 4 2 6 Accessing the Mains Harmonic panel Figure 4 8 1 The complete module can be removed from the LSP bracket after removal of the DAF panel by removing screw 1 and then slide the module in the opposite direction of the CRT 2 2 The board can easily be l...

Page 14: ...position 2 1 Release the two fixation clamps by pulling them backward 1 2 At the same time the complete assy must be pulled backward 2 3 If the board has to be removed release the 2 clamps at the bracket sides and lift panel up 3 4 3 Mounting the Rear Cover Before mounting the Rear Cover some checks has to be performed Check whether the Mains Cord is mounted correctly in the guiding brackets Check...

Page 15: ...lity mode and no ident timer normally the set is automatically switched off when no video signal IDENT was received for 15 minutes Entering Via a standard RC handset by entering the code 062596 followed by the MENU button Via ComPair Via grounding the Front Detect line on the Side I O panel during switch ON pins 1 and 7 of connector 0936 By the DEFAULT button on the DST while the set is in the nor...

Page 16: ...ption bytes 8 codes possible summary of options are explained below 5 Sub menus are listed in a scroll menu N O R M A L R E D P I C T U R E B R I G H T N E S S S O U N D C O L O U R F E A T U R E S C O N T R A S T I N S T A L L S H A R P N E S S C O L O U R T E M P S A M S A M S A M S A M S A M N P R G W S S B S Y S T E M O B 1 O B 2 H R S 0 0 0 3 S W I D E M 1 1 A 1 1 0 E R R 0 0 0 0 0 0 0 O P T ...

Page 17: ...2 2 Details on available software versions can be found in the chapter Software Survey of the publication Product Survey Colour Television Line 2 Error code buffer for more details see paragraph 5 3 Displays the last 7 errors of the error code buffer Line 3 Software and hardware functionality of the EM1A is controlled by option bits An option byte or option number represents 8 of those bits Each o...

Page 18: ...omer Service Mode the picture is OK Decrease the CONTRAST value The new Personal Preference value is automatically stored after 3 minutes 5 3 2 Sound problems No sound or sound too loud after channel change switching on After switching on the Customer Service Mode the volume is OK Increase decrease the volume level The new Personal Preference value is automatically stored after 3 minutes 5 4 ComPa...

Page 19: ...p ComPair and select File menu Open select EM1A Fault finding and click OK 9 Click on the icon to switch ON the communication mode the red LED on the ComPair interface will light up 10 Switch ON the TV set with the mains switch 11 When the set is in standby click on Start up in ComPair mode from standby in the ComPair EM1A faultfinding tree otherwise continue Figure 5 5 The set has now started up ...

Page 20: ...MSP connected to the 5 V supply are constantly monitored When none of these devices responds to the micro controller for a prolonged time the micro controller assumes that there is a failure in the 5 V supply By starting up the set via grounding of the FRONT_DETECT line on the side I O the 5 V protection will be overruled and it will be easier to determine the cause The 5V protection will be activ...

Page 21: ... 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 The contents of the error buffer can also be made visible through the blinking LED procedure This is especially useful when there is no picture When the SDM is entered the LED will blink the contents of the error buffer Error codes...

Page 22: ...he microprocessor namely the BRIDGE_PROT coming from the line stage and the DEFL_PROT protection coming from the frame deflection stage If one of these protections is triggered the set is positioned in Standby mode The Painter will now try to re start the set If this will not succeed after 5 times after 30 60 s the Painter will generate error 7 this error can have several causes such as a Flash BR...

Page 23: ...eady Standby info high µP has been reset by POR Standby supply starts oscillating off Low_power_standby High_power_standby no no yes yes POR available within 1 second Standby high Go to protection Error code 05 HOP POR not successfull read POR bit from the HOP Wait 1500ms and reset MSP Sound IC DISABLE I2C while EHT is starting up 250ms Give HOP_start_commando within 23 5 ms after a POR is obtaine...

Page 24: ...o put supply in on mode TS7529 is blocking then Load capacitor C2515 VBAT with a load of 500 ohm Supply can not work without a minimum load Use a variac to slowly increase the VMAINS Measure over sensing resistors R3514 15 whether a nice sawtooth voltage becomes available Also measure the VBAT output VBAT may never exceed 141 V If so there is something wrong in the feedback circuitry e g regulator...

Page 25: ...re is caused by or check feed back circuit See repair tip main power supply supply needs a minimal load No picture no sound LED works fine Supply does not work correctly If e g VBAT is only about 90 V regulator IC 7506 could be damaged No RC5 reception Red LED does not echo RC commands Processor circuitry or RC receiver is wrong In case set reacts on local keyboard operation error must be found in...

Page 26: ...Fault finding and repair tips GB 26 EM1A 5 Personal notes ...

Page 27: ...athodes of the CRT pin 8 6 and 11 of the CRT connector Select the cathode with the highest VDC value for the measurement 4 Adjust Vcutoff with the Vg2 SCREEN potmeter of the LOT to 170 2 VDC Figure 8 2 8 2 2 Focusing 1 Tune the set to a circle or crosshatch test pattern use an external video pattern generator 2 Adjust the 1st Focus potmeter upper LOT potmeter see figure 8 1 until the horizontal an...

Page 28: ...uency showed in the line Fine tune is between 471 18 MHz and 471 31 MHz you don t need to re adjust the IF AFC 5 If not adjust the frequency in the Fine tune line to 471 25 MHz and store the program by leaving the menu this is very important because this will disable the AFC algorythm 6 Now go to the SAM and select Alignments General IF AFC 7 First you must align the IF AFC parameter such that you...

Page 29: ...al input Set amplitude to 1 mVRMS and set frequency for PAL BG to 475 25 MHz 2 Set CONTRAST to the maximum value 99 3 Measure with a colour analyser calibrated with the spectra on the centre of the white square on the screen Adjust the level of NORMAL BLUE and NORMAL RED to get the right XY coordinates See table 8 1 Table 8 1 8 4 Options 8 4 1 Options Options are used to control the presence absen...

Page 30: ...PMU Incredible picture via menu OFF menu item INCR PICT not available ON available OB2 8 CBFL Comb filter OFF no comb filter on the SSB ON comb filter present on the SSB OB3 1 SURF Surf OFF disabled ON enabled OB3 2 CHNA China set OFF disabled ON enabled OB3 3 VSLC Vertical slicing OFF disabled ON enabled OB3 4 W169 Double Window 16 9 OFF disabled ON enabled OB3 5 W4X3 Double Window 4 3 OFF disabl...

Page 31: ...nction enabled OB3 1 W4X3 Double Window 4 3 OFF function disabled ON function enabled OB3 2 ISUR Incredible Surround OFF function disabled ON function enabled OB3 3 PIPF PIP Functionality OFF function disabled ON function enabled OB3 4 PIPT PIP Tuner OFF function disabled ON function enabled OB3 5 PIPS PIP Surf OFF function disabled ON function enabled OB2 6 PIPC PIP Control OFF function disabled ...

Page 32: ... the EM1A LSP has a very large hot part including the deflection coil The SSB is a high tech module 2 sides reflow technology full SMC with very high component density and complete shielding for EMC reasons Despite this it is designed in such a way that repair on component level will be possible To achieve this attention has been paid to The position of service test lands Tuner side Accessibility ...

Page 33: ... Degaussing circuit The Main Supply a SOPS supply based on the down converter principle generates the 141 V VBAT and the 28 V for the audio part Difference with former MG sets is that VBAT is not mains isolated hot and is alignment free 9 1 3 Power supply diagram A1 A2 General The power supply has a number of main functions These functions are dealt with in succession Mains filter Degaussing pictu...

Page 34: ...mary coil will induce a counter e m f that wants to maintain the current The voltage on the drain of the FET will increase The secondary voltage 8 9 will become positive and will charge C2104 via D6107 and D6111 All energy that was stored in L5101 during t0 t1 will be transferred into the load Due to the transformer principle a voltage will now be induced in the primary winding 3 5 and the co coup...

Page 35: ...in coil L will be transferred to electrostatic energy in capacitor C The VIN will only supply current during the time that S is closed while a constant current is flowing through RL VBAT is directly proportional with VIN and the time that S is closed and reverse proportional with period time T So by changing the duty cycle it will be possible to control VBAT Figure 9 6 At start up of the main supp...

Page 36: ...BY At the moment the set is switched ON the HOP is not working as much as possible IC s are made voltageless during STANDBY Therefore it is impossible that the STANDBY line carries line pulses so the main supply cannot start up This problem is solved via the low power start up possibility of the HOP Via pin 22 the HOP receives via the STANDBY_INFO line from the Painter a voltage of 5 2 V coming fr...

Page 37: ...ion delivering HA and VA Switching off IF filtering The HIP has various inputs Full matrix switch with 2 CVBS inputs 2 Y C or additional CVBS inputs 1 CVBS front end input Two RGB and 1 YUV input Outputs Three separate switchable outputs can be used 1 YUV output is fed to the PICNIC 2 CVBS outputs One for Teletext Dual Screen and the other for output to MONITOR OUT to have WYSIWYR What you see is ...

Page 38: ... without movement Variable Vertical Sample Rate Conversion Synchronous No Parity Eight bit Reception an Transmission interface SNERT bus Depending on the chassis model the FBX6 can have the following specification 9 1 8 Video High end Output Processor HOP diagram B4 General In the HOP High end Output Processor TDA9330 the video processor and digital deflection processor are integrated The main fun...

Page 39: ...herefore this pulse is converted into a VDHOP signal by a 530 µs monostable oscillator extended by 16 5 lines This signal is on block function level equal to VSYNC and FRAMEDRIVE The Painter is synchronised on the HD100 pulse from the FBX and on the VSYNC for the synchronisation of TXT OSD When no CVBS is offered to the video processor the VA and HA pulses are switched off by the HIP and the VD an...

Page 40: ...left side will be reduced C2433 is charged quadratic during time interval t1 t2 Left and right the voltage across the deflection coil decreases causing the deflection to slow down In the centre the voltage increases and the deflection will be faster An S shaped current will have to be superimposed onto the saw tooth current This correction is called finger length correction or S correction C2433 i...

Page 41: ...en 8 and 8 V Figure 9 12 The sawtooth voltage for the frame output stage is not generated by the HOP but by a discrete circuit after the optocoupler 7610 via R3600 and R3601 a linear increasing voltage over C2601 is built up with a large time constant The circuit around TS7603 is a current source driving C2601 with a current value derived from the E W modulator This will result in an S shaped volt...

Page 42: ...und output MSP3451G Virtual Dolby The MSP3451 which is used in all versions supporting Virtual Dolby is capable of supporting 4 stereo inputs and 1 mono AM INPUT Therefore the extra input selector HEF4052 is not needed The MSP3451 is also capable of supporting 2 EXT outputs so the trick used in the MSP3415 set up to get a constant level output is not needed The MSP3451 has a separate headphone out...

Page 43: ...n and Blue are added together and offered to the emitter TS7300 On the collector of this transistor configured in a common base the sum of these 3 signals is obtained Via the emitter follower formed with TS7301 this signal is conveyed to the differentiator C2303 R3309 and R3318 Only the high frequencies are differentiated small RC time The positive and negative pulses of this signal drive respecti...

Page 44: ... IF frequency settings by the RESET signal TUNER 7201 SPLITTER LATAM AP RF to Main Tuner 1352 4 5 1 11 IF RGB YUV INPUT2 RGB YUV MATRIX COLOUR DECODING SYNC RBG YUV MATRIX YUV INTERFACE RGB INPUT1 RGB OUTPUT DOUBLE WINDOW PROCESSOR IC7801 SAB9081H TDA888X IC7301 7803 TDA8601 1333 4305 PIP AUDIO PIP AUDIO 12 11 10 6 7 8 8 12 10 10 6 8 9 2 3 4 4 3 1 0205 Y MAIN OUT U MAIN OUT V MAIN OUT Y PIP MAIN I...

Page 45: ...1 MB DRAM of the video data is done entirely in the digital domain The conversion back to the analogue domain is done by DACs Internal clocks are generated by PLLs which lock on to the applied horizontal and vertical syncs from the main sub pictures The main picture syncs are applied to pin 70 vert pin 94 hor and the sub picture syncs are applied to pin 72 vert and pin 87 hor For DW mode the main ...

Page 46: ...supply voltage DC PROT DC protection DFU Direction For Use description for the end user DNR Digital Noise Reduction noise reduction feature of the box DSP Digital Signal Processing DST Dealer Service Tool special remote control designed for dealers to enter e g service mode DVD Digital Versatile Disc DYN FASE COR Dynamic phase correction EHT Extra High Tension EHT INFO Extra High Tension informati...

Page 47: ... PILOTMUTE Pilot Mute signal Progressive Scan Scan mode where all scan lines are displayed in one frame at the same time creating a double vertical resolution PTP Picture Tube Panel RAM Random Access Memory RC Remote Control RC5 RC5 signal from the remote control receiver RESET Reset signal ROM Read Only Memory SAM Service Alignment Mode SC Sandcastle pulse derived from sync signals SCAVEM Scan Ve...

Page 48: ...µF 20 350V 2469 4822 122 31169 1n5F 10 500V 2471 2222 460 90025 18nF 2 63V 2480 4822 121 43856 4n7F 5 250V 2485 2222 460 90022 10nF 2 63V 2489 4822 124 40433 47µF 20 25V 2492 4822 126 14076 220nF 25V 2493 5322 122 32654 22nF 10 63V 2494 4822 126 14076 220nF 25V 2495 4822 126 14076 220nF 25V 2496 4822 126 13838 100nF 20 80 50V 2497 4822 126 14076 220nF 25V 2498 4822 126 14585 100nF 10 50V 2499 4822...

Page 49: ...0176 1Ω 5 0 5W 3621 4822 116 80176 1Ω 5 0 5W 3622 4822 116 80176 1Ω 5 0 5W 3623 4822 051 20223 22k 5 0 1W 3624 4822 052 10158 1Ω5 5 0 33W 3625 4822 116 83872 220Ω 5 0 5W 3626 4822 116 83872 220Ω 5 0 5W 3627 4822 116 52238 12k 5 0 5W 3628 5322 116 53564 3Ω3 5 0 5W 3630 4822 051 10102 1k 2 0 25W 3631 4822 051 20472 4k7 5 0 1W 3632 4822 117 10833 10k 1 0 1W 3633 4822 117 11449 2k2 5 0 1W 3639 4822 05...

Page 50: ...irtual DS 1020 3104 328 10991 SSB Middle East virtual DS 1301 2422 540 98456 Crystal 12MHz 1309 2422 543 01184 Crystal 4 433619MHz 1310 2422 543 01183 Crystal 3 579545MHz 1405 2422 549 44374 Saw Filter OFWK9352L 1405 2422 549 44389 Saw Filter OFWK9361L 1406 2422 549 44324 Crystal 5 5 5 74MHz 1407 2422 549 44043 Crystal 4MHz 1408 2422 549 44376 Saw Filter 1408 2422 549 44388 Saw Filter 1409 2422 54...

Page 51: ...1 30682 6k8 5 0 062W 3053 4822 051 30103 10k 5 0 062W 3055 2422 086 11013 Fuse 1Ω5 3056 4822 117 12925 47k 1 0 063W 3057 4822 117 12925 47k 1 0 063W 3059 4822 051 30472 4k7 5 0 062W 3060 4822 051 30272 2k7 5 0 062W 3061 4822 051 30103 10k 5 0 062W 3062 4822 051 30101 100Ω 5 0 062W 3063 4822 051 30101 100Ω 5 0 062W 3064 4822 051 30101 100Ω 5 0 062W 3300 2322 750 63908 Fuse 3Ω9 5 3301 4822 117 13632...

Page 52: ...1 92557 SAA5667 7001 9352 659 94557 SAA5647HL M1 7002 4822 130 60373 BC856B 7003 3198 010 42310 BC847BW 7004 3198 010 42310 BC847BW 7005 9322 116 74668 LD1117D33 7006 4822 209 73852 PMBT2369 7007 4822 209 73852 PMBT2369 7011 9322 156 63668 CY7C1019V33 15VC 7012 4822 209 17377 M24C32 WMN6 7301 9352 625 23518 TDA9330H N2 7303 5322 130 42756 BC857C 7307 9352 630 99118 Comb filter multi TDA9181 7308 9...

Page 53: ... 4822 051 20471 470Ω 5 0 1W 3801 4822 117 11503 220Ω 1 0 1W 3802 4822 117 10361 680Ω 1 0 1W 3803 4822 117 11503 220Ω 1 0 1W 3804 4822 051 30681 680Ω 5 0 062W 3805 4822 051 30221 220Ω 5 0 062W 3806 4822 051 30681 680Ω 5 0 062W 3807 4822 051 30221 220Ω 5 0 062W 3808 4822 117 10361 680Ω 1 0 1W 3809 4822 051 30221 220Ω 5 0 062W 3810 4822 051 30681 680Ω 5 0 062W 3811 4822 117 11503 220Ω 1 0 1W 3812 482...

Page 54: ...hift assy EMG 1430 2422 086 10581 Fuse 400mA 65V b 5430 3128 138 38911 DC shift coil d 6432 9340 317 00133 BYD33V 6433 9340 317 00133 BYD33V 8318 3104 301 08731 2P3 220mm I DAF Panel Various 0030 3104 304 21651 DAF DC SHIFT BRACKET 0317 4822 265 20723 2P 0318 2422 025 16374 2P male V 0391 3104 311 02452 JST 340mm 0397 4822 267 10973 1P g 2800 2222 375 90504 820pF 5 2kV 2890 2222 375 90504 820pF 5 ...

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