Microlab A-6660, A-6661, A-6662, A-6663, A-6664 Schematics

87654321

C13

0.1UF

C13'

0.1UF

C17

0.47UF

C21

0.1UF

C25

0.1UF

C25'

0.1UF

R20

5.1K

C14
682

R15

R14

3.3K

8.2K

14'

682

R14'

8.2K

R21

5.1K

C18
104

C22
682

R26

8.2K

C26

682

R32

8.2K

C26'
682

R32'

8.2K

R15'

3.3K

R27

3.3K

R33

3.3K

R33'

3.3K

R16

8.2K

R16'

8.2K

R22
100K

R28

8.2K

R34

8.2K

R34'

8.2K

C15
472

C15'
472

C19
104

472

472

472

C23

C27

C27'

J3

CON8

D

C

1

FR

2

FL

3

SUB

4
5

CEN

6
7

SR

8

SL

B

+VA

R11'
47K

R17
47K

R23
47K

R13 33KR12

*

U3A

4558
R11
47K

R13' 33K

*

U3B

4558

+VA

R19 100KR18

U4A
4558

33K

R25

U4B
4558

+VA

R31 33KR30

*

U5A
4558

R31' 33K

*

U5B
4558

+VB

+VB

+VB

+VB

+VB

+VB

10K

C12

0.1UF

R12'
10K

C12'

0.1UF

10K

C16

0.22UF

R24 10K

*

C20

0.1UF

10K

C24

0.1UF

R30'
10K

C24'

0.1UF

+VB

+VB

+VB

+VB

+VB

R29
47K

R29'
47K

R01 1K

D

FL

FR

C

CT

SUB

SL

SR

B

R

AUX1

L

R03'

RL3

R3 100K

R03

RR3

R04'

*

R4' 100K

R04 22K

R4 100K

*

R05' 1K

R5'

R05 1K

R5 100K

R01'

100KR3'

1K

1K

22K

1K

100K

*

R1

100K

1K

*

R1' 100K

**

R2 100K

R2'

100K

22K

C04
104

C05
101

C01
101

C01'
101

R

RADIO

L

10UF

C2'

C03'
101

C03
101

C02
101

!

*

C05'
101

C33'
104

C32'

47UF

MUTE

SCL
SDA
+5V

DGND

J1

CON5

5
4
3
2
1

C11
10UF

C3' 10UF

C3 10UF

C4'

10UF

C4 10UF

10UF

C5'

C5

10UF

10
11
12

13
14

+5V

1
2

3
4
5

6
7

8
9

C35
47UF

U1

L1
L2
L3
L4

FLI
FRI

CTI
SUBI

SLI
SRI

MIXO
VCC
REF

GND

10-100MA

U6

7805

PT2323

LPF-I

LPF-O

FLO
FRO

CTO

SUBO

SLO
SRO
SCL

SDA

C30
47UF
25V

R39

220/2W

C37
47UF
25V

R1
R2

R3
R4

28C1' 10UF
27
26

25
24

23
22

21

20
19
18
17
16
15

SDA

C1

C2 10UF

SCL

25V/20V

10UF

C6

MC104

R6

10K

C7 MC104

270

R8'

R8

270

R9' 270

R9 270

R10'

270

R10 270

R35

220/1W

1
2

CON2

J2

10K

R7

C8' 10UF

C8 10UF

C9' 10UF

C9 10UF

C10' 10UF

C10 10UF

C36
47UF
25V

J3'+5V

R
L

Q1 8050

R36
1K

C31
47UF

1
2

TO RADIO TUNER

3
4

2

19

3

18

4

17
11

20

8

C11'

1

10UF

C33''
104

C32
47UF

ZD1

9.1V

IN1
IN2

IN3
1N4

IN5
1N6
GND
CREF

NC

VS

C32''
47UF

U2

+VA

TDA7448

FL

FR
CEN
SUB

SL
SR

OUT2
OUT3

OUT4
OUT5
OUT6

SCL

SDA

ADDR

NC

14
6

15
5

16
10
9

12
13

7

OUT1

/+8.5V

R37

3.3K

R38

3.3K

+VB

47UF

/+4.2V

C34

C33
104

U7

C38
47UF

7812

+12V

10-100MA

A

1 2 3 4 5 6 7 8

PDF created with FinePrint pdfFactory trial version http://www.fineprint.com

Title

A3

Date: 6-May-2005 Sheet of
File: D:\AN\A-6660R.ddb Drawn By:

A-6660 PRE-AMPLIFIER

Number RevisionSize

A

L.M.An

4321

SMG1

a

b

f

D

C

g

e

c

d

GND1

aabbcc

dp

GND2

1 2 3 4 5 6 7 8 9 10

1R5
330

1R6
330

1R4
330

dd

eeffgg

GND3

1 2 3 4 5 6 7 8 9 10

1R3
330

1R7

dp

J1
CON4

1
2
3
4

1

CON1

+5V

1C6
104

1R12
10K

1R17
470

1R13
10K

1C1
47UF

47uf

1R16
10K

1C2

104

GND2
GND1

GND3

+5V

1R1
10K

HS0038B

IR

VCC

GND

B

OUT

DGND

+5V

SDA

SCL

MUTE

SMG2

aabbcc

dp

330

14 15

b

f

13
12

a

11

g

10

9
8
7
6
5
4

3
2
1

PB4
PB3

PB2

PB1
PB0
PA3

PA2
PA1
PA0
NC

VSS

NC

VDD

RTCC

GND4

eeffgg

dd

PB5
PB6
PB7

PC0

PC1

PC2
PC3
PC4

PC5
PC6
PC7

OSC2
OSC1

MCCK

1U1

STBY

LED01

g f e

MUTE

LED02

dp

dp

5.1IN

LED03

a

2.0IN

LED04

f

5.1OUT
LED05

b

2.1OUT
LED06

cba

c

1R8

330

c
d

16

e

17

GND4

18

GND5

19

20
21
22

23
24

25
26
27
28

1C3
104

1R2
10K

1C4

30

CTL
6MHz

1C5

30

POWER

LED07

1J501J7

e

1R10

330

POWER

LED08

d

**

**

0

d

1R9

330

SW-PB

INPUT SEL

R11
10K

GND5

1JR7

* *

330

+5v

ECD1

UOLUME

3

1R14
10K

+5V

1JR5

330

BAC

2

1

1R15
10K

A-6660 NO USED

"*"

D

C

B

A

1 2 3 4

PDF created with FinePrint pdfFactory trial version http://www.fineprint.com

+5V

Title

A4

Date: 6-May-2005 Sheet of
File: D:\AN\test-1.ddb Drawn By:

A-6660 DISPLAY AND CONTROL BOARD SG16C57

Number RevisionSize

A

L.M.An