Roberts RD69 Service Manual

RD-69

DAB+/FM RDS DIGITAL RECEIVER

CONTENTS

Block Diagram ………………………………………………………………………………………………………2
Specification ………………………………………………………………………………………………………3-4
Main PCB Top View…………………………………………………………………………….……….……………5
Main PCB Bottom View.………………………………………………………………………….……..………..…..6-8
Wiring Diagram..….………………………………………….………………….….……………..……….9-10
Troubleshooting Flow Chart..….………………………………………….……………….….……………..……11

Electrical Parts List………………………………………………………………………………....……………12-14

Mechanical Parts List……………………………………………………………………….………….…………….15
Exploded Views.…………………………………………………………………………….…………….……………16
IC Circuit Block Diagram…………………………………………..…………….………………………………17-20
Semiconductor Lead Identifications……………………………………………………………………..……..…21
IC and Transistor Voltage Chart….……………………………..…………………………….…………………22-23
Schematic Diagram………………………………………….……………………………………………………24

BLOCK DIAGRAM

2

BATT 6V

DC-IN

JK302

Backlight

LED2, LED3, Q1

TMR1

Switch

JK301

EAR Jack

IC

IC2

8Ω / 1W

Power AMP

PRE-AMP

Q6

Mute

Charger

Q500 - Q506

IC500 , D500 - D504 ,

P1 P5

Q2

Mute Control

Q3

Mute Control

Switch

SW300

Charger

P14

IC1

Power Control

P4

P3

SW1

Power SW

SW15

LOCK

REQ. 5.5V

Q7, Q8, Q10, D7, D10

Power OFF

Low Battery

Q9, D6, R64,

R78, R79, R80

D5

LCD1 Display

2 X 16 Dot. Matrix

4

FS2025

IC3

EAR-AMP

L/R

P29/30

D8

D4

SW2-14

Function Key

N

: NO Connect

*

Q18

Mute

MuteReset IC

P8

*

P19

IC5

D3

P12

P1

P2

Low Battery LED

RC

R129, C132

Q4, Q5, Q11,

Q12, Q13, LED4

CE

REQ. 1.2V

IC6

Reset IC

REQ. 3.3V

CE

L9, L8,

R129, R127

R124, R125

IC14, L13, L12

Specification

3

FM. ELECTRICAL PERFORMANCE

Model ：RD-69

Brand：ROBERTS

Temp ：25∘C R.H.：75% Date：2008/6/3

Ver.：A

Page：
1/2

Test Item

Input Output freq Nom. Lim 1. 2. 3.

Tuning Range S/N=6dB

Max. Sensitivity S/N=6dB

Usable Sensitivity S/N=30dB

Current Consumption
(Battery_ Input 6V)

Min. output 60dBu 0.5 1.5
Auto. Scan. Stop. Sens.

Stereo 45kHz/Dev.

26 32

Pilot 10 %

Condition Value Test no.

Min 87.5

Max 108

Lock_ Off

Charge_Alk.

Lock_ Off

Charge_NiMH

90MHz
98MHz

106MHz

90MHz
98MHz

106MHz

30 70 uA Power off
50 90 uA

3
3

3
12
12
12

9
9

9
18
18
18

Unit

MHz

dBu

EMF

dBu

EMF

mV

rms
dBu

EMF

Spurious Rejection 40 dB
S/N(1mV)22.5kHz/Dev. 58 48 dB
Stereo separation 1KHz 24 18 dB
Current Consumption
( DC IN : 6V )

R. O.

160 200 mA

Am. Suppression (1mV) 32 26 dB
Audio fidelity

75KHz dev. 50uS

(-3dB W/pre emphasis)
Output Power

(75KHz dev.)
Mod. 1KHz

Speaker
8 Ohm

Earphone
32 Ohm

60dBu

10%T.H.D. 500 300 mW

Volume max 5+5 3+3 mW

98MHz

100 200 Hz

10K 8K Hz

T. H. D. (75KHz dev.)
Over load capacity 10%T. H.D. 120 106

Low Battery
( Battery Input )
Charge current
(Adaptor Input)

Supply Voltage:
*Adaptor

100-240V 50Hz

7.5V / 0.8A ;

60dBu R. O.

Power off, charging 440

R.O.: 50mW Load: 8 Ohm

R. O. 1 2 %

dBu

EMF

3.9 4.3 V
±80

mA

Modulation:
1kHz Mod. / 22.5KHz Deviation

*Battery 6V
Note : Test add 20 Hz ~ 20kHz Filter
Remark：

Approved by
沈洲燦2008/6/3

Released/Tested by
廖英柏 2008/6/3

DAB(BAND

4

Specification

Ⅲ

) ELECTRICAL PERFORMANCE

Model ：RD-69

Brand：ROBERTS

Temp ：25∘C R.H.：75% Date：2008/6/3

Ver.：A

Page：
2/2

Test no.

Test Item Condition CH Limit Typical

Unit

1. 2. 3.

RF Freq. Range

Min 5A CH

Max 13F CH

Fc : -70 dBm (Wanted channel)
Fi : ≧ -25 dBm

Far-off Selectivity

FM 75Khz/dev. Fc ±5MHz

10A 42 51 dB

(Unwanted channel)
(Measurement to EN50248)

5A -93 -96 dBm
10A -94 -97 dBm
12B -94 -97 dBm
13F -93 -96 dBm

Sensitivity

Without pop noise

S/N Ratio DAB S.G. = - 70 dBm 10A 50 60 dB
Max. input Signal : Without pop noise 10A -7 0 dBm

5A -97 -100 dBm

Acquisition
Selectivity

(Measurement to EN50248)

10A -98 -101 dBm
12B -98 -101 dBm
13F -97 -100 dBm

Current
Consumption

Output Power
1kHz

Supply Voltage:
*Adaptor

100-240V 50Hz

7.5V / 0.8A ;

DC IN : 6V
Vo lume = 0

12B 170 130 mA

DAB S.G. = - 70 dBm
10%T.H.D. 12B 300 500 mW

R.O.: 50mW Load: 8 Ohm

Modulation:
1kHz

*Battery 6V
Note : Test add 20Hz~ 20kHz Filter

Channel Freq.( MHz) Channel Freq.( MHz) Channel Freq.( MHz)

5A 174.928 10A 209.936 12B 225.648

13F 239.200

Remark：

Approved by

沈洲燦

Released/Tested by
廖英柏 2008/6/3

2008/6/3

MAIN PCB TOP VIEW

5

MAIN PCB BOTTOM VIEW

678

WRING DIAGRAM

9

10

TROUBLESHOOTING FLOW CHART

11

Power can not be turned on

No

Check whether the
SW15 (Lock) is OFF.

No No

Check whether the Pin1 of
IC1 is High Level.

Yes Yes

Yes

No

Check whether the Q10
“C” is VCC.

Yes

Yes

Change SW15 to OFF.

Check whether the Pin14
of IC1 is VCC.

Check IC1 and check SW1,
SW15, R56 and R57.

Check Q10, Q7, Q8, D10
and D7.

Check Adaptor or Battery.

Check D600, J3 and
BASS600.

No

Check whether the Pin5 of
IC14 is 3.3V.

Yes

No No

Check whether the Pin5 of
IC13 is 1.2V.

Yes Yes

No

Check whether the Pin1 of
FS2025 Module is 1.2V

Yes

Check the MODULE.

Check Pin1 of IC4 is VCC
and check L13, R124 and

Check Pin3 of IC13 is 0.7V
up.

Check Pin1 of IC13 is VCC
and check L8, R126 and

Check IC6, R129 and
C132.

16

IC CIRCUIT BLOCK DIAGRAM

17

1. IC1 － TC 4013BFN

2. IC2 － NJM2100M

18

3. IC3 － LM4809

4. IC4 － TPA2005D1DRBR

19

5. IC6 － NCP803 2.93V

6. IC13 & IC14 － S-8550AA-M5T1G

20

7. IC500 － MC33340

SEMICONDUCTOR LEAD IDENTIFICATIONS

21

Transistors

C

B

E

2SA812
2SA1576
2SC1623
2SC4081

DTC144EN3

C

B

C

E

6

1

HN1B01FU

1. EMITTER 1

2. BASE 1

3. COLLECTOR 2

4. EMITTER 2

5. BASE 2

6. COLLECTOR 1

4

5

3

2

C

B E

2SB772

BTB1424

Diodes

A

A

RLS4148

ZENER 3V

ZENER 4.3V

ZENER 6V

(E:Emitter C:Collector B:Base)

A C

C

CAC

1N5817
1N4002

3

1

2

HBAV99

(A:Anode C:Cathode)

IC AND TRANSISTOR VOLTAGE CHART

22

IC1 － TC4013BFN

PIN FM DAB PIN FM DAB PIN FM DAB PIN FM DAB

7.26 7.26

1
2
3
4
5
6
7

0 0
0 0

0.01 0.01
0 0
0 0
0 0

8

9
10
11
12
13
14

0 0
0 0
0 0
0 0

7.37 7.32
0 0

7.37 7.32

IC2 － NJM2100M

2.73 2.74

1

2.73 2.74

2

2.73 2.74

3
4
5
6
7

0 0

2.73 2.74

2.73 2.74

2.73 2.74

IC3 － LM4809

3.23 3.21

1
2
3
4
5
6
7

0 0

1.56 0

1.56 1.57

1.65 1.65

3.30 3.28
0 0

IC4 － TPA2005D1DRBR IC6 － NCP803 2.93V IC13 － S-8550AA IC14 － S-8550AA

PIN FM DAB PIN FM DAB PIN FM DAB PIN FM DAB

1.64 1.64

1

1.64 1.64

2

1.60 1.61

3
4
5
6
7
8

IC500 － MC33340

PIN FM DAB

1
2
3
4
5
6
7
8

0 0

3.27 3.27

1.64 1.64

1.64 1.64

3.30 3.30

Charge

0 0 2.01
0 0 4.67
0 0
0 0 0
0 0 0.86
0 0 0.21
0 0 0.12
0 0 5.67

0.67/6.18

3.30 3.31

1

3.30 3.31

2
3

PIN FM DAB PIN FM DAB PIN FM DAB

0 0

LCM

4.54 4.56

1

1.65 1.65

2

4.85 4.87

3

3.30 3.31

4
5
6
7
8

0 0

6.39 6.44

3.30 3.31

3.30 3.31

5.44 5.45

8

1
2
3
4
5

9
10
11
12
13
14
15
16

1.66 1.64

8

5.53 5.53
0 0

3.30 3.30

0.59 0.59

1.21 1.21

0 0

3.30 3.31
0 0
0 0
0 0

/ /
/ /
/ /

17
18
19

3.30 3.31

20

3.30 3.31

21

3.29 3.30

22

3.29 3.30

23

3.30 3.31

24

5.53 5.53

1
2
3
4
5

/ /
/ /
/ /

0 0

5.53 5.53

0.60 0.60

3.33 3.33

Module

PIN FM DAB PIN FM DAB PIN FM DAB PIN FM DAB PIN FM DAB

1
2
3
4
5
6

1.19 1.19

3.30 3.31
0 0
0 0

2.59 2.84

2.55 2.65

3.30 3.30

7
8

2.54 2.64

9

3.30 3.31

10
11

2.98 2.96

12

0 0

0 0

13
14
15
16
17
18

3.30 3.31

3.30 3.31

2.54 2.66

2.55 2.63

3.29 3.30

3.29 3.30

19
20
21
22
23
24

2.60 3.10
0 0

2.60 2.78
0 0
0 0

1.59 1.60

25
26
27
28
29
30

1.65 1.65

1.64 1.64

1.68 1.65
0 0
0 0
0 0

23

Transistor

PIN FM DAB PIN FM DAB PIN FM DAB

Q1

B
E
C

0.77 0.77
0 0

0.30 0.30

Q6

B
E
C

0 0
0 0

3.16 3.21

1
2
3

0 0
0 0
0 0

Q12

B

Q2

E
C
B

Q3

E
C
B

Q4

E
C
B

Q5

E
C

0 0
0 0
0 0

7.22 7.18

7.26 7.21
0 0

5.48 5.48

5.54 5.52
0 0

1.55 1.55

1.66 1.66

Q10

5.48 5.47

Q7

Q8

Q9

B
E
C
B
E
C
B
E
C
B
E
C

0.60 0.60
0 0

6.78 6.73

0.57 0.57
0 0

0.60 0.60

0.54 0.54
0 0
0 0

Q13

Q18

4
5

6
B
E
C
B
E
C

0 0
0 0
0 0

2.28 2.28

1.66 1.66

1.70 1.70
0 0
0 0

3.27 3.27

6.77 6.73

7.41 7.36

5.54 5.52

R138

24

150KF( 1%)

C91

473

MOUT_R

561

C98

222

C96

MOUT_L

10K

472

C97

Light LED

Light LED

LCD1 {Value}

*R59

*R61

SHUTDOWN-LOW

R72

56KR75

IC2

NJM2100M

27K

R71

LED3

LED2

XRESET

24

RS

23

CSB

22

R/W

21

E

20

DB0

19

DB1

18

DB2

17

DB3

16

DB4

15

DB5

14

DB6

13

DB7

12

VSS

11

SHLC

10

SHLS

9

VDD

8

VIN

7

VOUT

C2

6

PSB

5

PSI2B

4

CAPIP

3

CAPIN

C1

2

V0

1

0

R58

0

R60

104

C85

Q6

CC

BB

M23
M22

105

104

2SC4081

EE

470KR133

390KR132

103

C100

47

R22

47

R23

105
C143

*R49

C27 104

CCBBEE

C137

R45 3K3

LCD-DATA

47/16

C63

Q1

0603
BD1

R46 3K3

22uH

L10

C145

C144

L11

220K
R135

R136 100K

103

*C101

2SC1623

*R35

R47 3K3

LCD-CLK

102

C119

102

C120

224

224

22uH

R137

150K 1%

473

C92

103

104

101

LCD-CS

104

R26

3K3

10KR69

C9

C7 220/6.3

C24

LCD-RS

SCHEMATIC DIAGRAM

47K

2AS1576

750KF

R152 27K

CC

MUTE

Q504

1

8

C504 104

EE

BB

DTA144EN3

VSENIN2VSGOUT
VCC5TRL7TRH

R514 4K3

100/10

C60

104
C81

102
C83

C104 47P

2SC1623

Q18

470K
R155

COL3

100

R55

R518

RLS4148

47K

D506

R516

103

3

6

100

C506

R519

330KF

R515

4

OUT

GND

30K

R517

TSENS

105

C505

C507 473

*104

JK600

*C600

EAR JACK

102

102

C600

C603

12

104

12

104

R601

R600

C602

C601

L

R

C605 102

*104

*C601

104

C604

12K

2K2

R602

R603

JK601

DCJACK

123

DC-IN

D600

1N5817

100/16C606

C607 104

VCC-IN

BT500

+3V3

ADP.DET

MUTE

330/6.3

C56

C16

104

RLS4148

VCC-IN

4.3V

D7

D10

CCBBEE

Q8

2SC1623

1K(1206)

CC

CCBBEE

BB

EE

R86

Q10

2SB772

100K

105

R89

C8

100

R31

5.5V

IC1

C6 10/10V

C5

104

47/16

C22

5.5V

100p
C21

470/6.3

C131

220/6.3C69

47/16C44 102

+1V2

L8

22uH

22uH

L9

C122 102
C121 104

+3V3

22uH

L13

2K7

104

5.5V

C93

100K
R123

2SA1576

BB

Q4

CC

EE

4u7/50

C12

1K

R87

150

47K

R118

D8

MM4148

R62

105

C37

22K

R81

2SC1623

Q7

47/16

C11

33K

R88

CC

BB

EE

Q2

2SA812

47K

R27

MM4148

D2

100
R34

330K

R30

100K

100K

R28

R29

104

103

C10

C34

10K

R63

SW1

POWER

C124 102

C123 104

C70 220/6.3

C46

36KF( 1%)R127

CH TA 46/6.3

C133 104

104

C117

2.5K(0603)

B3

C51

+3V3

36KF( 1%)R124

104

C118

100/10

C52

L12

22uH

33K

R121

R122

10K

R116

4K7

R114

CCBBEE

2SC4081
Q13

CCBBEE

103

C103

10/16C135

2SC4081

Q5

R119 82

3V

470

R80

D6

D3

MM4148

R64

R79

220K

150KF

300KF

R78

Q9

2SC4081

68K

R92

PWEN

22/16

C13

22K

CC

BB

EE

R33

Q3

2SA812

47K

R32

470K

330K

R56

R57

C129 223P

36KF( 1%)

R126

0

R157

104

C132

CH TA 46/6.3

10K

R129

C128 120P

8.06KF( 1%)

R125

104

39K

R120

2K7

100K
R115

10K

R139

100K

R131

C130

R128

220K

R117

R130180

CHARGER(GRN)

HN1B01FU

Q12

LOW-BATT(RED)

LED4

102

C502

100K

R521

3.3(0.5W)

600(1206)

1N5817

R504

D502

470(0805)

10K
R505

HBA99

Q502

R506

2SC1623L7

470(0805)

820K
R509

100K
R510

2SC1623L7

2SC1623L7

Q503

Q506

47K

R507

102

C501

R511 47

47K

R508

100K
R520

220K

R501

SP1

8 ohm 0.5W

W3

SP+SP-

104

104

C134

C127

Q500

BTB1424AM3

R500

470(0805)

D500

1N4002

102

C500

R502

R503

3.3(0.5W)

Q501

2SB772

D501

1N5817

B500

D503

2u2/16

C88

B1

47/6V3

C43

105

C82

600(1206)

220/6.3

C140

104

C141

102

C142

2u2/16

C89

SW300

ALKALINE

CHARGER

CHARGE ON/OFF

CNT500

P2.54

EAR_R

C55

330/6V3

R150 27K

C59

4u7/10

22K

R149

1K

R134

104

C87

100K

R154

MOUT_R

MOUT_L

+3V3

10KR77

47P

C102

8K2R76

8K2

+3V3

22

R70

100/10

C61

104
C80

10K

R68

10K

R67

100/10

C62

224C99

R74

224C95

C105 47P

Q505

R513

3V

D505

220

R512

IC500

MC33340

10/10

D504 6.2V

C503

P2.54

BASS501

10K

TMR1

EAR_L

C58

330/6V3

IC3

LM4809

22K

R151

104

C90

270KR156

R21 12K

+3V3

C14

*C136

D5 RLS4148

LIGHT_12_SEC

3

4

SW9

SW10

2

1

SW8

SW7

SW2

SW5

select

Auto tune

ROW3

COL4

100

R37

100

R42

100p

100p
C3

C4

*

*C29

+3V3

*

*C23

*R65

*B2

R36 100

Vol -

SW14

SW12

BAND

ROW4

100

R54

R38

100p

C15

R51 100

R20 4K7

SW13

5

SW3

SW11

SW6

SW4

down

ROW2

COL1

100

R41

100

R39

100p

100p

C18

C19

R40 100

R53 100

FS2025

100

100

R52

R43

R50

100

D4

Vol +

INFO

RLS4148

1K

R44

COL2

up

100

R141

ROW1

100p
C94

100

100

R143

100p

C17

R103 1.5K

R102 1.5K

C126

R98 1.5K

104

R112 1.5K

C125

220/6.3

C26

CN1

104

C115

102

C116

220/6.3

C25