Philips 43PP8441 Schematic

Large Signal Board Panel

1

E1

A

LARGE SIGNAL BOARD

To Po w e r
Supply
Panel
1500

B

C

D

E

F

G

H

I

J

K

L

M

N

O

F12

VH

GND_C

GND_C

GND_C

3316

GND_C

13.5V

7303

CQY80NG

I159

NOTES

1. CAPACITANCE VALUES ARE IN FARADS:
m=MILI u=MICRO n=NANO p=PICO f=FEMTO

2. RESISTANCE VALUES ARE IN OHMS:
R=OHM K=KILO M=MEGA G=GIGA T=TERA

3. SAFETY TRIANGE REPRESENTS PCEC REPLACEMENT PART ONLY.

4. PART VALUE / USAGE VARIES, REFER TO PARTS LIST.

*

1

1

2

3

4

5

152.4V
164V

1500

2310

680p

GND_C

3315

15K

3317

1K

VCC

42

19V

0V

L42

56.5V

2309

82p

P7

GND_C

I148

13.5V

20V

15

19V

7304

TL431

2

81.2V

7302
MC44603A

82K

3314

.24V

DEMAGNETICATION

Vdem in

8

I135

Vdem out

Iref

Sync

9

C

OSCILLATOR

10

T

F106

R standby

2.5V

F

15

220p

2353

R standby

12

P

2.5V

2.5V

I143

14

VOLTAGE

FEEDBACK

1n

47K

2311

13

E/A OUT

3.5V

3.5V

FOLDBACK INPUT

VCC

I150

3318

150K

3329

330R

I156

3328

0V

0V

I158

0V

1u

100R

I157

4K7

3326

18.9V

3327

100R

I160

1

2

*

3

18.8V

2333

2n2

0V

2

P7 P10 P11P9P8 P12 P13



34

2390

GND_C

MANAGEMENT

Vosc

STANDBY

(REDUCED FREQUENCY)

ERROR
AMP

FOLDBACK

CURRENT SENSE INPUT

5

1.2V

15K

3319

GND_C

2328

3325

47K

4n7

2334

I161

I164

I111

I113

3313

10K

2.5V

Rref

Vosc prot

Iref

+130VS

3324

3350

3323

3322



I132

16

Vref

REFERENCE

BLOCK

100K

I188

47K

2K7

I162

470R

1300

5A0
5HT

I166

I118

Iref

Vref
enable

CURRENT
SENSE

7

.14V

3-K2,2-F2

HOUT

2n2

5330

W8051

5315

INITIALIZATION BLOCK

Latch
Reset

THERMAL

SHUTDOWN

Dmax & SOFT-START

Iref

3338

*

GND_C

+15V

150R

2268



Electrical Diagrams

GND_C

2346

100n

UVLO1

BUFFER

Vovp out

Vref

OVERVOLTAGE
MANAGEMENT

OVERVOLTAGE

PROTECTION

UVLO1

Vref

1u

100p

2271

6

3300

22K

47u

I130

0V

13.5V

1

Vcc

18V

Vc

OUTPUT

GND

Vcc

100n

47K

3285

I889

47K

3286



5

I110

GND_C

SUPPLY &

QSet

CONTROL

I149

10K

3267

100u

3K3

3294

5

I165

I114

Soft Start & Dmax

11

2.4V

2306

GND_C

7

8

F111

120V Mains = 152V to 166V 220V Mains = 233V to 316V

2300

470u

2337

470u

2338

**

*

.8V

7309

0V

3303

100K

3307

4R7

P9

3306
15R

0031

HEATSINK

.7V

.4V

*

I892

10n

F108

GND_C

3344

I128

10n

3343

2349

120V Mains = 152V to 166V
220V Mains = 233V to 316V

7301

STW13NB60

I141

G

3.4V

0V

10K

3305

GND_C

3280

2267

3281

I163

470p

2302

LKS1AF

1305

75R

7300

BC547B

5302

164V

VCC

7214
NE555D

THR

COMP

DISC

3

12

1N4148

I134

GND

6313

BYD33J

+5VSTDBY

8

VCC

COMP

FF

1

6301

I152

3304

0V

I140

2305

1K

.8V

470p

GND_C

CTRL

TR

RES

OUT

I125

BC547B

5301

I891

5

2

4

3

PART VALUE / USAGE VARIES, REFER TO PARTS LIST

100u

2354

2303

2

3

2.8V

4

6

I136

GND_C

I146

1.9V

*

2270

3311

4R7

13V

I139

3320

F107

VCC

3312

5303

*

3321

8K2

8K2

GND_C

I890

*

13.5V

4

P8

6

7

876 16

9

9

470u

F117

15K

15K

9K1

270R

65DPTV325 7.

1N5062

I895

6213

I896

BZX284-C15

11

GND_C

0213

MTP6P20E

7213

2391
2n2

11 12

10

HEATSINK

BYV28-200/20

5300

*

US54107

8

6

22021

1

P17

470p

6212

I898

5241

13

14

15

16

17

18

19

22

2278

9000

2277

I115

P16

AGND

13

5308

1u

I170

5321

1u

P12

I117

5323

P13

I119

5324

I897

5320

5319

P14
P15

P15

I121

I124

470p

2329

BY229X-600

6309

I173

I122

I174

BY229X-600

I137

BY229X-600

14

BY229X-600

2364

470p

BY229X-600

6316

BY229X-600

6306
470p

2315

6307

2319

470p

6317

2361

470p

VSCAN

2-C2

470p

2323

6308

0041

12

HEATSINK

0V

HEATSINK

HEATSINK

0047

12

P18

I171

18.2V

HEATSINK

0045

12

0V

0035

12

0V

HEATSINK

0037

I138

0V

I153

100p

I189

2371

1

-37V

2370

100n

0V

P20

35.9V

22V

2

0V

5310

BYD33D

3358

3361

P21

P24

0033

12

6318

18K
I190

4K7

-18.1V

5313

I123

1m

I154

P26

HEATSINK

I112

2316

-22V

5314

2362

3360

100R

10u

12

P11

I127

I129

*

2n2

P19

I172

2330

2365

P22

1m

I133

1m

1m

I191

2372

16 17

I168

5316

10u

1m

AGND

5322

10u

1m

P23

2320

2363

4K7

3357

4K7

3359

0V

1.8V

1

7305

TL431

0V

3

2.6V

2

100n

2331

2366

5318

AGND

5307

10u

1m

1m

I192

3362

1K5

I169

3353

AGND

3354

2317

*

MUR8100E

*

BY229X-600

6K8

3363

1m

AGND

4K7

4K7

1m

3355

5309

10u

470p

2350

6315

6314

STANDBY

5317

10u

2324

4K7

2321

HEATSINK

0043

12

1-C10

100n

3339

68R

I151

1m

131V

100n

5306

6320

2332

3356

18

2327

22V

2318

4K7

I147

5311

P25

1N4148

AGND

1m

F116

*

2314

L42

F12

6321

F115

*

MUR8100E

BY229X-600

10

3365

3302

3301

220R

220R

220R

I116

2n2

2301

I120

STANDBY

1-L17

P10

0032
MECHPART

*

D

330p

2304

S

0V

.1V

I144

3310

I893

6211

BAT254

I142

6302

1N5062

6303

GND_C

3308

0R22

GND_C

3309

0R22

GND_C

390R

4n7

2307

4n7

2308

GND_C

5240

10K

3277

2276

100n

2n2

2269

3291

I894

100R

P27P26P25

P14

20V / div AC

10µs / div

0

1

11 12 173

P15 P16

P17



1413

P18



5V / div AC

5ms / div

15

20V / div AC

10µs / div

18

P20P19 P24P23P22



P21

3352

AGND

18V

2312

470p
6305

6304

470u

F132

1N4148

4K7

F114

F119

100n

HEATSINK

0039

F121

HBLANK

DEFGND

VBLANK

+5VSTDBY

+130VS

+15V

19

F113

-18V

22V

F118

2335

12

I145

2-D20

2-C20

2-N19

3347

10K

.3V

194

F142 F141

100n

2326

2325

- AUDIO

+ AUDIO

35V

100n

-22V

-37V

-22V

2339

5304

P27

2313

F125

F134

F127

.8V

F128

F129

5336

10u

F135

PWR FAIL

F131

10u

2336

F136

F137

CL 26532103_022.eps

AGND

F140

F139

F120

470u

F133

*
*

100n

2322

470u

3348

1R

2340

100n

1

2

BYD33D

3351

1

2

3

4

5

6

7

8

9

10

11

12

2015

RESERVED

PCB-TAB4.8x0.5

1506

AGND

1516

To SSM

12

Panel

11

1516

10

9

8

7

6

5

4

3

2

1

1803

EH-B

3

FAN

2

1

+130VS

6310

4K7

+130VHV

1518

To SSM
Panel
1518

PROTECT

2-M2

100902

20

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

2V / div AC

5ms / div

2V / div AC

10µs / div

5V / div AC

10µs / div

10V / div AC

5µs / div

10V / div AC

5µs / div

50V / div AC

5µs / div

20V / div AC

10µs / div

20V / div AC

10µs / div

20V / div AC

10µs / div

20V / div AC

10µs / div

20V / div AC

10µs / div

50V / div AC

10µs / div

50V / div AC

10µs / div

50V / div AC

10µs / div

5V / div AC

10µs / div

50V / div AC

10µs / div

1V / div AC

10µs / div

1V / div AC

10µs / div

500mV / div AC

10µs / div

500mV / div AC

10µs / div

Large Signal Board Panel

1

E2

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

LARGESIGNALBOARD

FILAMENT

2-M11

VSCAN

1-L14

+130VS

I842

3-K2,1-M5

I882

I865

BZX284-C10

6814

3846

3834

47R

10K

3842

1n

6822

BAV21

1R

HOUT

6824

BZX284-C10

F9

PROTECT

1-N20

NEG-HORIZ-PULSE

L25

2-A20

1 20

330p

2837

Electrical Diagrams

*

*

2.8V

7808
BC847B

7809
BC847B

-.4V

2.3V

6813

2.8V

10K

9203

5802

5

47u

3840

4K7

I827

3839

4K7

100n

2836

7807

BSN304

I838

D

G

S

3850

L27

1

2

62V

2834

470p

4K7

3837

6816

BZX79-C68

47K

2K2

5808

UD15111-00

L4

1n

2831

I858

2.8V

6817

BAS216

L28

3849

6

3

I832

4

BZX79-C68

7812

BF423

I868

6812

I861

1820

1m5

2835
3838

1R

I849

+15V

1K

7906
BC847B

2.2V

L30

I874

L31

47K

I877

15K

3859

I880

-200V

3862

3864

15K

15K

3861

2.8V

7810
BC847B

3

I840

2846

+15V

470K

1u

3844

22K

2838

F808

2840

32

3841

4

L3

I841

3835

470R

2K2

3836

BZX284-C10

F10

I866

3843

-.4V

2K2

6815

BAS216

I871

.2V

1n

22K

2839

3845

+15V

27K

L26

3847

100K

10n

3848

I884

10n

2841

6823

BAS216

4

F5F4F3F2 F8 F9F7F6 F10

3851

5.2V

.5V

6819

3860

2801

3832

100K

6818

BAS216

1.5V

100n

2843

BZX79-C18

5809

47u

7

47u

I833

2821

100n

4R7

3809

I854

2845

100n

BC847B

L29

I867

3852

100R

L32

10K

1u

2842

313503710161

Ref Des

BASIC 4:3
242253595282 242253595282

5802

47u
NOT USED

765

8

F800

F802

206V

3826

27K

5

4.8V

7813

L7

2832

+15V

10K

.03V

.7V

3853

6

5.3V

10n

18K

3833

22n

2830

3854

L33

3855

330R

I864

2844

1002
EH-B

G1

313503710171
BASIC 16:9

47u
NOT USEDNOT USED NOT USED

8

9

L22

+15V

7803-B

8

LM393D

4

6820

I862

BZX284-C10

10u

4

3

2

1

313503710181
CORE 4:3

242253595282
47u

7

I844

6825

100n

2806

3824

.7V

3825

100R

L9

BZX284-C10

3856

4K7

1102
EH-B

313503710191
CORE 16:9

242253595282
47u

102

5806

1K5

+30V_CLAMP

I848

L8

.8V

G

I859

10K

3857

13.9V

L34

4

3

2

1

66DPTV325 7.

11 12 13 14

I811

4

3

2

1

S

+15V

2804

2-B20

24.7V

14.6V

BC857B
7814

14.6V

FILAMENT

1801

T4A
MRT

470u

2847

470p

I857

3858

4K7

2-A2

200V

313503710211
CHINA 16:9

47u 47u

3801

0R68

7802

2SK2232

D

3827

1K

6214

BAS216

L35

1202
EH-B

ToBLUE
CRTPanel
1202

313503710201
CHINA 4:3

242253595282 242253595282
47u

NOT USED NOT USED

F12

2802

6827

L10

22u

L5

BYV27-200

BAS216

313503710221
AMV 4:3

NOT USED

2803

470p

6802

BYD33J

2833

6215

I818

-.5V

47u

121110

0085

HEATSINK

3810

1R

7801
BU2520AF

560p

+15V

3823

I852

3829

68K

5807

12

1m5

VDOA

F2

3-K2

F3

VDOB

3-K2

313503710231
AMV 16:9

242253595282242253595282 NOT USED
47u

139

L24

6.8V

0081

2817

BYM357DX

47K

BAS216

HEATSINK

3812

100R

3811

100R

3866

150R

NOT_USED
FUTURE USE

319803690010NOT USED9203

I810

BY229X-200

HEATSINK

148V,1200Vp-p

3

1

2

25.2V

22n

2819

6821

L20

0082

I873

4n7

2824

I869

2805

470p
6801

2823

2822

6810

0180

L6

I843

1n

F806

.6V

F4

1K87

100p

F5

4n7

14

15

I822

L21

HEATSINK

Takenw/100:1ScopeProbe

8n2

2818

I835

6809

BYD33J

5804

10u1

90u

5805

2820

4u7

2829

-13V

4

GND

IN+7

AMPLIFIER
POWER

.7V

IN-1

3813

VSUP2VSUPO

I875

1K87

3814

3818

3819

1R5

1K

I881

1R

1R5

3821

3820

L6L5L4L3 L9 L10L8L7

470R

13V12.9V

TDA8177
7811

3808

PROTECTION

THERMAL

GENERATOR

FLYBACK

6

.03V

I878

16 17

2815

I836

10u

47R

3807

2200u

2816

430n

5

OUT

FLYB
3

F7

2825

100u

6811

BYV27-200

F8

470n

2828

6826

BZX79-C18

5803

I850

F6

-12.5V

2826

100n

5801
US40104

8

7

6

5

3

1

I847

100n

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

L12

50V / div AC

10µs / div

L13

50V / div AC

10µs / div

L14

50V / div AC

10µs / div

L5

1V / div AC

10µs / div

L16

2V / div AC

10µs / div

L19



50V / div AC

10µs / div

L20



5V / div AC

10µs / div

L21

20V / div AC

10µs / div

L22

1V / div AC

10µs / div

L23

20V / div AC

10µs / div

L24

1V / div AC

10µs / div

L25

20V / div AC

10µs / div

18

L23

I812

L15

I814

6803

BYV27-200

2807

470p

9

10

12

13

14

15

16

I845

I825

L11

I813

L12

I830

L13

2811

470p

BYV27-200

6805

L14

2814

I837

470p

6806

BYV27-200

L19

148V

3804

220R

148V

3805

220R

2827

3815

-13V

F12

2K7

3865

2K2

148V

I876

3806

220R

F809

2808

47u

10R

L16

3802

1K

I828

1804

T1A
MRT

I834

1805

T1A
MRT

DYN-FOCUS-LOW

3-C2

DYN-FOCUS-HIGH

3-D2

DM-INPUT

3-L19

HOT-COLLECTOR

3-N2

VERT-PARABOLA

3-F2

HVG-ON

3-K19

I860

+13V

VBLANK

1-K19

VPULSE

3-L2

3803

28V

F803

2812

2813

1501

1

2

3

4

1502

1

2

3

4

1503

1

2

3

4

2019

NEG-HORIZ-PULSE

2-N2

+30V_CLAMP

2-F11

DEFGND

1-K19

6804

BZX79-C4V7

HBLANK

1-K19

F804

+13V

1m

6807

BAS216

1m

-13V

F805

6808

BAS216

ToRED
DeflectionYoke

LV

ToGREEN
DeflectionYoke

LV

ToBLUE
DeflectionYoke

LV

CL 26532103_023.eps

100902

1918171615

L26

500mV / div AC

10µs / div

L27

1V / div AC

5ms / div

L28

1V / div AC

5ms / div

L29

1

500mV / div AC

2ms / div

L30

50V / div AC

5ms / div

L31

50V / div AC

5ms / div

L32

500mV / div AC

10µs / div

L33

500mV / div AC

10µs / div

L34

1V / div AC

10µs / div

L35

1V / div AC

10µs / div

L11

1V / div AC

10µs / div

1V / div AC

10µs / div

500mV / div AC

10µs / div

500mV / div AC

10µs / div

10V / div AC

2ms / div

20V / div AC

2ms / div

500mV / div AC

10µs / div

10V / div AC

5ms / div

1V / div AC

10µs / div

2V / div AC

5ms / div

2V / div AC

10µs / div

50V / div AC

10µs / div

5V / div AC

10µs / div

2V / div AC

10µs / div

1V / div AC

20µs / div

2V / div AC

10µs / div

2V / div AC

10µs / div

10V / div AC

10µs / div

20V / div AC

10µs / div