Philco 113020208, Service Manual

BG4J

Waveforms & Voltages

(On the Main Board)

Q1001

 B     4V
 C     0V
 E  4.7V

Q1003

 

B  2.1V
 C 

0V

 E  2.7V

Q3401

 B    2.5V
C    5V
E   2.0V

Q431

 B    0.3V
 C  1.8V
 E    0V

IC001 (AUDIO AMP.) 

 

Pin-1

  0 V 

2

 11.12 V 

3

 

0.73 

4

 

0 V 

5

   0.73 V 

6

  2.65 V 

7

 

0  V 

8

 

0  V 

9

  11.35V

              

10

   5.54        

11

  0 V 

  

12

    5.62 V 

13

     5.58 V           

14

    5.65 V 

15

 

0 V

IC802 (MEMORY) 

 

Pin-1

  GND 

2

 

GND 

3

 

GND 

4

 

GND 

5

  4.80V 

6

  4.80V 

7

 

0 

8

  4.80V 

Q1002

  B     4V
 C     0V
 E  4.6V

 IC501 (VERT. OUT) 

 

Pin-1

 -18.0V 

2

  -18.0V 

3

  -16.7V 

4

  18.55 

5

    1.33V      

6

     1.32V        

7

    17.95V   

8

 

-14.79V 

9

 

-14.79V 

10

  -14.79V 

Q002

 B  7.6V
 C     0V
 E  7.4V

(On the CRT Board)

�

2.2 Vp-p

4.5 Vp-p

4.2 Vp-p

IC201-pin19

<H drive>

IC201-pin45

<R out>

IC201-pin46

<G out>

IC201-pin47

<B out>

1.7Vp-p

Horiz.

0.9 Vp-p

IC201-pin77

<Internal V in>

47Vp-p

Vert.

55 Vp-p

IC501-pin3

<Vert. out>

41.0 Vp-p

Q432-B

<Horiz. out>

IC601-pin3

<Power out>

444 Vp-p

50Vp-p

Horiz.

63.6 Vp-p

Q431-C

<Horiz. drive>

4.8 Vp-p

Vert.

0.9 Vp-p

IC201-pin14

<V drive>

1.4Vp-p

Horiz.

IC201-pin08

<Video out>

1.8 Vp-p

1000Vp-p

Horiz.

5.0 Vp-p

IC201-pin20

<FBP in>

1000Vp-p

Horiz.

1220 Vp-p

Q432-C

<Horiz. out>

Q651

 B  -17.9V
 C  -18.5V
 E  - 18.6V

Q887

 B     0.2V
 C    4.8V
 E     0V

IC1001 (AV SELECTOR) 

 

Pin-1:

  4.00V 

2:

  3.76V 

3:

 

4V 

4:

  3.78V 

5:

  3.75V 

6:

 

0V 

7:

 

0V 

8:

 

0V 

9:

 

0V

    

10:

 

0V 

11:

  3.78V 

12:

 

4V 

13:

 

4V 

14:

  3.75V 

15:

  3.76V 

16:

  7.56V 

Q201

 B  8.2V
 C  11.3V 
E   7.6V

Q205

 B  5.7V
 C  6.3V
 E 

5V

Q202

 B    5.4V
 C  10.3V 
 E    4.8V

Q1902

 B  0.1V
 C  4.8V
 E  0.1V

Q210

 B  0.8V
 C     0V
 E    0V

Q211

 B  0.8V
 C 

0V

 E 

0V

Q206

 B  5.7V
 C  8.2V
 E  5.1V

Q461

 B   16.5V
C    0V
E 16.0V

Q462

 B   0.6V
 C   16.2V
 E     0V

Q672

 B    0.6V
C     0.1V
E       0V

Q632

 B  0.6V
 C     0V
 E    0V

Q622

 B    0V
 C   4.2V
 E    0V

Q631

 B   18.2V
 C   18.6V
 E   18.8V

Q685

 B  -1.9V
 C     0V
 E     0V

Q652

 B   -0.7V
 C -0.1V
 E     0V

Q671

 B   29.2V
 C  29.8V
 E  29.8V

Q886

 B    0.7V
 C   0.1V
 E     0V

Q701

 B     2.1V
 C  156.2V
 E    2.0V

Q721

 B    2.2V
 C   116V
 E   2.1V

Q711

 B     2.2V
 C    156V
 E    2.1V

IC1002 (AV SELECTOR) 

 

Pin-1:

  3.90V 

2:

  2.78V 

3:

  3.85V 

4:

 

0V 

5:

 

0V 

6:

  7.57V 

7:

  3.10V 

8:

 

0V 

Component Location

108Vp-p

Q701-C

<B-out>

103Vp-p

Q721-C

<G-out>

133Vp-p

Q711-C

<R-out>

Q741

 B     0.7V
 C     1.4V
 E    0   V

Vert.

0.99Vp-p

IC201-pin15

<V drive>

Q742

 B     7.6 V
 C     0 V
 E    7.5 V

IC3401 

  Pin-1  2.4V 

2 

2.4V 

3  2.42V 

4  2.86V 

5  2.37V 

6 

0V 

7 

1.2V 

8 

0.5V 

9 

4.3V

    10  4.17V 

11  2.37V 

12  2.77V 

13 

2.4V 

14  2.28V 

15  2.41V 

16  2.35V 

17  2.39V 

18  2.39V

    19  5.04V 

20  1.01V 

21  2.41V 

22  1.51V 

23 

2.4V 

24 

2.4V 

Q684

 B   0.6V
 C    0V
 E     0V

Q463

 B -14.8V
 C  -11.4V
 E -14.4V

Q425

 B   -11.5V
 C  -14.5V
 E   -7.6V

H

HH

H

HH

HH

HH

HH

HH

HH

H

HH

H

HH

H

HH

H

HH

H

HH

HH

HH

H

HH

H

H

H

HH

HH

H

HH

H

HH

HH

HH

HH

HH

HH

HH

HH

HH

HH

H

H

HH

HH

HH

HH

HH

H

HH

H

HH

HH

F601

T4AL250

V

1LG4B10Y0340A_

Y

KD
Y

+B

???   **

*

KG

KE

1LG4B10Y03400_Y

LB6A.MAIN.PWB

1LG4B10Y0340B_Y

LB6A.CRT.PWB

1

5

KP

Q432-1

1

KQ

KE-1

KG-2

KE-2

KG-3

1

5

KX

TP-
A

TP-
B

TP-
E

X340

1

X201

VA601

SW1901

SW601

RL60

1

R601

E

Q201

L201

L101

K1101

24

1

13

12

IC3401

IC50

1

1

15

2

14

IC00

1

D1901

C3401

C1001

C601

C101

C001

A1901

A101

SW1902

E

Q202

K130

2

1

4

5

8

IC80

2

D1902

D102

C190

2

C1102

C1002

C202

C002

SW1903

R103

K1303

K1003

D103

C340

3

C1103

C100

3

C203

SW1904

C100

4

C10
4

SW1905

E

Q205

K1005

D605

C805

C605

SW1906

E

Q206

D606

C

60

6

C106

D607

C1007

C

60

7

C207

D608

C340

8

C

60

8

D609

C340

9

C100

9

C3410

L611

IC501

A

D611

C1

11

1

C611

C011

R1112

D61
2

C3412

C1112

C612

C212

C012

R61
3

C341

3

C1913

C613

C013

R1114

C3414

C614

C214

C615

C215

D61
6

C341

6

C616

C21
6

C617

R618

C341

8

C618

R61
9

C61
9

R620

C342

0

Q461A

Q432A-1

F601A

D1901A

D621

C3421

C1021

R

42

2

E

Q622

F601B

C3422

C1022

C622

C3423

C102

3

C223

D624

C342

4

C225

C

62

7

R628

C

62

8

R629

C629

C229

T431

R631

E

Q631

E

Q431

L631

L431

D1902A

R632

E

Q632

L432

C

63

2

C432

C232

R

43

3

C433

C434

C234

C436

C237

C238

C639

C1040

C

24

0

D103A

C646

1

KSP

C

85

0

D

35

3

C355

X161

R66
1

Q461

L661

L461

D461

C661

E

Q462

E

IC66

2

D462

C463

D

46

5

D

46

7

D468

C468

C469

D

47

0

C470

T471

C471

R475

C475

D

47

6

R

47

7

D681

R884

R484

R485

D486

D887

R

48

8

C49
1

C486

C

66

2

C

62

3

C

60

2

L601A

C601A

C

63

0

C602

A

L621

JP603

JA40

JA50

9

1

18

10

T611

L1901

3

4

2

1

D610

D61
4

D61
3

D485

JG64

JG66
JG65

JP1102

R

42

3

D469

JE21

JE2
0

D466

JG67

JG59

JG61

JG58

JG56

JF62

JE6
0

D421

R

42

4

JF60

JF63

JF61

JE511

JE51

JF53

JF52

JG68

JH62

JG63

JF64

IC001A

JF66

JB60

JB67

JB66

JB65

JB69

JB68

JH6
0

JH61

R1014

JH5
3

JH5
4

JH50

JB63

JB62

JC60

JB61

R506

R609

R610

R481

L1902

JA21

JF50

JE61

R502

C504

C

50

5

C51
0

C512

Q461-1

KDY-

1

KDY-3

KDY-4

KDY-5

KDY-6

D

50

2

D507

D511

T431A

R481A

Q461A-1

Q425

L462A

L442

A

C502

A

E

Q651

L651

C652

R654

R

45

6

R461

C505A

C461

C462

D

46

3

D

46

4

C464

R671

E

Q671

D671

C671

R673

R677

IC501A-1

C502

C508

C672

JB21

JD60

JA61

JE58

JE514

JF51

JE513

R663

R355

JG11

D441

D631

D651

JF11

JF42

JF43

J189

R

46

6

JE22

JH57

JG43

JH42

JF33

JF34

JH43

JH55

JH56

D001

IC60

1

C206

C513

C631

C235

D

43

8

C651

JE4
8

JE49

L6

71

JE59

JC52

JE42

JE43

JE44

JF54

JE50

JC53

JC59

JD52

JD53

JD54

R271

R650

R667

JE53

JE10

JG60

JG69

R

69

9

R

69

8

JG51

JG53

JG52

JG55

JG54

JG57

JE512

R273

JD55

JD56

JD57

JD58

JD61

D005

L340

1

JE31

JE3
2

JD50

JC61

JB64

JD62

JE6
2

JF58

JF45

JF46

JF47

JG41

JG42

JF32

JF31

JE45

JP46

4

JP414

IC601A

R

43

5

L4

42

C

60

9

L601

L4

41

L462

R602A

R602

Q432A

Q432

PS601

R657

JA31

JF12

JE11

JP221

C423

C420

C44
1

C437

C424A

C425

C424

JH44

JB71

D

50

3

D501

JF48

JE56

JE516

JE517

JH59

R501

JD510

C465

R343

6

R612

R343

7

R421

R621

R431

R636

R637

R646

R

64

7

R454

R648

R459

R

46

0

R656

R462

R658

R

46

9

R470

R471

R666

R473

R474

R

47

6

R479

R885

R886

R887

R108

R115

R

50

3

R

50

4

R

50

7

R

50

8

R005

R202

R

20

3

R664

R231

R232

C620

R

43

4

R645

L202

C

23

0

R1011

R100

9

JG48

JG46

JG44

C1113

C1114

JP501

JF35

JH52

JE2
5

JP1103

JA60

D622

JE41

JE46

JC54

R659

IC501-

1

C466

JD1
0

D615

JC43

JD4
1

JA62

JG611

JG610

JH51

1

R

44

2

R441

R514

R513

R

50

5

R635

R655

R260

R275

R259

R617

R61
6

R651

R258

R

44

5

D684

JC41

JC42

JA30

JC50

JC51

JH51

0

JB611

JC11

JH

41

JD5
1

JE4
7

JC55

JC56

JD59

JE52

JE57

JG612

C210

JG613

JE3
3

D439

JG45

JG47

C108

JE55

R257

L702A

K7D1

K7M

K70
1

Q721

Q701

1

5

K7P

1

K7Q

C731

Q711

J702

J703

J704

C

74

2

R704

R714

R724

C71
0

J701

R703

R713

R723

R715

R716

R717

J705

L7

01

L711

L721

R732

A30C5

L601H4

SW601H

3

PS601H

2

L441H

2

T471H4

Q432AH

3

R664H2

R435H1

L442H2

L462H2

IC601AH3

L601H3

T471H8

Q432HB

T471H7

T611H

2

T471H9

Q432HE

L441H1

T471H6

Q432AH2

Q425HD

T471H5

T611H

5

L601H1

PS601H1

L442H1

SW601H

4

PS601H

3

R602H1

Q432HC

R602AH2

T471H1

IC601AH2

T471H1

0

C609H2

R435H2

C609H1

R664H3

SW601H

1

Q432AH1

T611H18

L601H2

Q432AH4

R602H2

SW601H

2

T471H2

R602AH

1

L462H

1

R664H1

T611H11

L441H3

IC601AH1

A30C5

A-SILK

1

2

3

4

5

6

A

B

C

D

E

F

F

E

D

C

B

A

G

H

G

H

6

5

4

3

2

1

DIP

A-UNCUT SILK