JVC RC BM5 Diagram

4 (1)

RC-BM5

SCHEMATIC DIAGRAMS

CD PORTABLE SYSTEM

RC-BM5

CD-ROM No.SML200302

	Area suffix
A -------------------------------			Australia
US ---------------------------		Singapore
UJ --------------------------		U.S.Military

Contents

Block diagram	2-1
Standard schematic diagrams	2-2
Printed circuit boards	2-9~11

No.21132SCH

Feb. 2003

RC-BM5

In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor (), diode () and ICP () or identified by the " " mark nearby are critical for safety.

(This regulation does not correspond to J and C version.)

1-2

RC-BM5

Block diagram

A	B	C	D		E		F		G		2-1

RC-BM5 RC-BM5

Standard schematic diagrams

Main and volume switch sections

TO Tuner section H801

FROM Main section CN301

CN802

H402

CN804

Voltage chart

Q301

Q302

Q303

C1383

945

4.84 V

0 V

5.48 V

0.6 V

0 V

11.33 V

0 V

4.8 V

Volume switch board

FROM CD control section CN702

FROM Display section CN401

CN701

TO CD control section

CN302

FROM Cassette section H602

TO Volume switch section H402

CN301

TO CD door

ST24C01

H302

CN803

TO Power amplifier

and

power supply sections CN204

CN801

CN303

NJM7805FA

FROM Power amplifier

and

Voltage chart

TO CD control section

power supply sections CN206

IC801 : PT2314

Q801

IC301 : MX10FLCDPC

IC302 : ST24C01 IC505 : NJM7805FA

PIN1

7.15 V

PIN16

3.49 V

1383

PIN1

4.69 V

PIN18

2.53 V

PIN1 - 4

0 V

PIN1

8.4 V

7.6 V

PIN2

0 V

PIN17,18

3.48 V

PIN2

4.78 V

PIN19

2.26 V

PIN5,6

4.91 V

PIN2

0 V

8.26 V

PIN3

3.49 V

PIN19 - 22

3.49 V

PIN3

4.68 V

PIN20

0 V

PIN7

0 V

PIN3

5 V

12.73 V

PIN4

3.48 V

PIN23

3.48 V

PIN4

0 V

PIN21,22

0.01 V

PIN8

4.96 V

TO CD control section

PIN5,6

3.49 V

PIN24

3.48 V

PIN5

0.01 V

PIN23

0.17 V

PIN7

3.5 V

PIN25

0 V

PIN6

0.17 V

PIN24

4.93 V

PIN8 - 11

3.48 V

PIN26

4.2 V

PIN7

4.92 V

PIN25 - 28

4.91 V

PIN12

3.5 V

PIN27

4.25 V

PIN8

4.91 V

PIN29

4.92 V

PIN13 - 15 3.48 V

PIN28

3.49 V

PIN9

0.04 V

PIN30

1.67 V

PIN10

0.01 V

PIN31

4.97 V

PIN11

4.93 V

PIN32 - 34

0.09 V

RADIO SIGNAL

CD SIGNAL

Parts are safety assurance parts.

PIN12

4.36 V

PIN35,36

0.01 V

PIN13,14

4.93 V

PIN37

1.13 V

When replacing those parts make

PIN15

4.81 V

PIN38

0.02 V

TAPE PB SIGNAL

MAIN SIGNAL

PIN16

0.38 V

PIN39

0.05 V

sure to use the specified one.

PIN17

0.01 V

PIN40

4.93 V

TAPE REC SIGNAL

2-2

RC-BM5

CD control section

Voltage chart

		Q501	Q502	Q503	Q701
		8050	8050	945	1383
FROM Main section	E	3.51 V	3.32 V	0 V	3.36 V
FROM Main section

B	4.1 V	3.99 V	0 V	4.06 V
C	5.06 V	5.06 V	3.51 V	5.04 V
5				DRAM-4MB (256K x 16)
TDA7073/N4
		W27C020-70
TDA7073/N4
4
				LS188C
TZA1024T
SAA7324H/T/M2B

IC701 : DRAM-4MB (256K x 16)

PIN1

4.83 V

PIN13

2.8 V

PIN22

1.5 V

PIN32

1.4 V

PIN2,3

1.3 V

PIN14

1.25 V

PIN23,24

1.8 V

PIN33,34

1.25 V

PIN4

1.25 V

PIN15

0 V

PIN25

1.5 V

PIN35

0 V

PIN5

1.2 V

PIN16

1.65 V

PIN26

1.25 V

PIN36

0.19 V

PIN6

4.83 V

PIN17

1.48 V

PIN27

0 V

PIN37,38

1.25 V

PIN7 - 9

1.25 V

PIN18,19

0 V

PIN28,29

2.7 V

PIN39

0.8 V

PIN10

0.9 V

PIN20

4.83 V

PIN30

0 V

PIN40

0 V

PIN11,12

0 V

PIN21

0 V

PIN31

1.25 V

IC702 : W27C020-70

PIN1

0.01 V

PIN8,9

1.35 V

PIN16

0 V

PIN2,3

0.12 V

PIN10

1.37 V

PIN17

0.9 V

PIN4

1.67V

PIN11,12

1.35 V

PIN18

1.6 V

PIN5

1.35 V

PIN13

PIN19

1.2 V

PIN6

1.44 V

PIN14

1.5 V

PIN20 - 32

PIN7

1.38 V

PIN15

1.52 V

FROM Main section

Voltage chart

IC703 : LS188C

PIN1

2.7 V

PIN32

3.29 V

PIN67

4.82 V

PIN98

1.4 V

PIN2

1.69 V

PIN33

3.26 V

PIN68

3.17 V

PIN99

0.01 V

PIN3

2.89 V

PIN34

3.27 V

PIN69

3.17 V

PIN100

2.5 V

PIN4

1.3 V

PIN35

3.2 V

PIN70

4.65 V

PIN101

0.6 V

PIN5

1 V

PIN36

1.7 V

PIN71

3.2 V

PIN102

1.3 V

PIN6

1.2 V

PIN37

1.43 V

PIN72

4.7 V

PIN103

1.1 V

PIN7

1.23 V

PIN38

1.2 V

PIN73

4.7 V

PIN104

1.1 V

PIN8

0.9 V

PIN39

1.4 V

PIN74

4.7 V

PIN105

0 V

TDA1308T/N1

PIN9

1.5 V

PIN40

1.2 V

PIN75

0.01 V

PIN106

2.8 V

CN702

PIN10

1.5 V

PIN41

1.1 V

PIN76

0.03 V

PIN107

2.82 V

PIN11

1.4 V

PIN42

0 V

PIN77

5 V

PIN108

3.3 V

Voltage chart

PIN12

1.3 V

PIN43

0.01 V

PIN78

5 V

PIN109

2.5 V

IC502 : TDA7073 IC503 : TDA7073 IC504 : TZA1024T

PIN13

1.3 V

PIN44

1.2 V

PIN79

5 V

PIN110

3.27 V

PIN14

1.3 V

PIN45

1.2 V

PIN80

4.83 V

PIN111

2.5 V

PIN1 - 4

0 V

PIN1,2

1.65 V

PIN1

1.79 V

PIN15

1.4 V

PIN46

2.46 V

PIN81

1.58 V

PIN112

1.4 V

PIN5

8.5 V

PIN3,4

0 V

PIN2

3.08 V

PIN16

3.29 V

PIN47

1.75 V

PIN82

1.58 V

PIN113

1.6 V

PIN6,7

1.65 V

PIN5

8.56 V

PIN3

0.76 V

TO Main section CN701

PIN17

1.35 V

PIN48

1.62 V

PIN83

1.57 V

PIN114

1.7 V

PIN8

0 V

PIN6,7

1.65 V

PIN4

0.15 V

TDA1308T/N1

PIN18

1.35 V

PIN49

1.65 V

PIN84

0 V

PIN115

1.4 V

PIN9

1.2 V

PIN8

0 V

PIN5

0.67 V

Voltage chart

PIN19

0.01 V

PIN50

1.65 V

PIN85

1.4 V

PIN116

1.6 V

PIN10,11

0 V

PIN9

4.18 V

PIN6

0 V

IC501 : SAA7324H

PIN20

1.4 V

PIN51

0.34 V

PIN86

1.2 V

PIN117

1.6 V

PIN12

4.26 V

PIN10,11

0 V

PIN7

3.04 V

PIN21

1.35 V

PIN52

3.45 V

PIN87

1.5 V

PIN118

0 V

PIN13

4.25 V

PIN12

4.22 V

PIN8

1.53 V

PIN1

1.4 V

PIN15

1.54 V

PIN28

1.58 V

PIN41

0 V

PIN55

1.7 V

Voltage chart

PIN22

1.65 V

PIN53

3.53 V

PIN88

0.7 V

PIN119

1.7 V

PIN14,15

0 V

PIN13

4.19 V

PIN9

0.79 V

PIN2,3

1.55 V

PIN16

1.52 V

PIN29

1.6 V

PIN42

4.6 V

PIN56

1.6 V

IC704 : TDA1308T

PIN23

0.12 V

PIN54

4.82 V

PIN89

3.29 V

PIN120

1.9 V

PIN16

4.24 V

PIN14,15

0 V

PIN10

1.68 V

PIN4

0 V

PIN17

3.1 V

PIN30,31

0 V

PIN43

3.72 V

PIN57

3.16 V

PIN1

PIN24

0.13 V

PIN55

0.01 V

PIN90

1.2 V

PIN121

0 V

PIN16

4.18 V

PIN11,12

0 V

PIN5

3.1 V

PIN18 - 20

0 V

PIN32

0.03 V

PIN44 - 46

0 V

PIN58

0 V

2.47 V

PIN4

0 V

PIN25

0.01 V

PIN56

3.29 V

PIN91

1.16 V

PIN122

1.7 V

PIN13

3.09 V

PIN6

1.23 V

PIN21

3.1 V

PIN33

0 V

PIN47

1.83 V

PIN59

0.6 V

PIN2

1.93 V

PIN5 - 7

1.92 V

PIN26

4.47 V

PIN57 - 61

0.01 V

PIN92

0.01 V

PIN123

1.7 V

PIN14

0 V

PIN7

1.53 V

PIN22,23

0 V

PIN34

3.15 V

PIN48 - 50

0 V

PIN60

0 V

PIN3

2.07 V

PIN8

4.81 V

PIN27

4.4 V

PIN62

2.46 V

PIN93

1.34 V

PIN124

2.46 V

PIN8

1.52 V

PIN24

3.16 V

PIN35 - 37

0 V

PIN51

1.6 V

PIN61

3.7 V

PIN28

0.01 V

PIN63

1.15 V

PIN94

1.2 V

PIN125

0.18 V

PIN9

1.53 V

PIN25

0 V

PIN38

3.11 V

PIN52

3.17 V

PIN62

0 V

PIN29

1.54 V

PIN64

3.74 V

PIN95

1.1 V

PIN126

0.58 V

PIN10 - 13 1.52 V

PIN26

1.64 V

PIN39

4.72 V

PIN53

0.3 V

PIN63

3.15 V

PIN30

3.29 V

PIN65

0.01 V

PIN96

0.7 V

PIN127

0.32 V

PIN14

0 V

PIN27

1.6 V

PIN40

4.7 V

PIN54

1.56 V

PIN64

3.03 V

PIN31

0.01 V

PIN66

3.13 V

PIN97

0.7 V

PIN128

0.58 V

CD SIGNAL

Parts are safety assurance parts.

When replacing those parts make

sure to use the specified one.

A	B	C	D		E		F		G		2-3

+ 9 hidden pages