Sony STR-DB830 Service Manual - Page 34

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IC102

MB90553APF-G-138-BND DISPLAY CONTROL(DISPLAY BOARD)

Description

PHONO display data output to LED.

TUNER display data output to LED.

CD display data output to LED.

MD/DAT data output to LED.

TAPE display data output to LED.

Not used. (Connected to Ground)

Power reay display.

Power check (+5V)



Ground (Connected to Ground)








UART data output to rewrite flash memory

UART data intput to rewrite flash memory

Clock output to flourescent display tube

Data output to flourescent display tube

Power supply +5 V

Fluorescent latch

Fluorescent clear

SIRCS input

External power regulator capacitor 0.1μ is connected to this terminal.

Not used (Connected to Ground)






Analog power supply +5 V

AVRH (Connected to power supply +5 V)

SVRL (Connected to Ground)


Key input 1

Key input 2

Key input 3

Key input 4


Key input 5

Not used (Pull up)

Not used (Pull up)

RDS signal input (AEP only)

Stop input


MD 0

MD 1 (Connected to power supply +5 V)

Pin No.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

I/O

Pin Name

LED PHONE

LED

LED

LED

LED

—

POWER RY

5V CHECK

—

—

VSS

—

—

—

—

—

—

—

FLASH DATA OUT

FLASH DATA IN

FL CLK

FL DATA

VCC

FL LAT

FL CLEAR

SIRCS IN

C

—

—

—

—

—

—

AVCC

AVRH

AVRL

AVSS

KEY INPUT 1

KEY INPUT 2

KEY INPUT 3

KEY INPUT 4

VSS

AD KEY IN 5

AD KEY IN 6

AD KEY IN 7

RDS SIGNAL

STOP

—

MD 0

MD 1

O

O

O

O

O

O

O

O

—

—

—

—

—

—

—

—

—

—

O

I

O

O

—

O

O

I

—

—

—

—

—

—

—

—

—

—

—

I

I

I

I

—

I

I

I

I

I

—

I

I

Section	Page
匀䔀䌀吀䤀伀一㄀ഀ䜀䔀一䔀刀䄀䰀	4
匀䔀䌀吀䤀伀一㈀ഀ匀䔀刀嘀䤀䌀䤀一䜀一伀吀䔀	5
匀䔀䌀吀䤀伀一㌀ഀ吀䔀匀吀䴀伀䐀䔀	5
匀䔀䌀吀䤀伀一㐀ഀ䐀䤀䄀䜀刀䄀䴀匀ഀ	6
匀䔀䌀吀䤀伀一㔀ഀ䔀堀倀䰀伀䐀䔀䐀嘀䤀䔀圀匀	40
SECTION 6 ELECTRICAL PARTS LIST	44

Sony STR-DB830 Service Manual - Page 34

Ic102, Mb90553apf-g-138-bnd Display Controldisplay Board

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