Sony XR-4803 User Manual

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1

AMSSEL

I

Setting terminal for the AMS selection   fixed at “L”

2

POS3

I

3

POS2

I

4

POS0

I

5

POS1

I

6

TAPEON

O

Tape system power supply on/off control signal output terminal    “H”: tape on

7

CM ON

O

Capstan/reel motor (M901) drive signal output terminal    “H”: motor on

8

LM LOD

O

Loading/tape operation motor control signal output to the MM1322XFBE (IC351)
(For the loading direction and forward side operation)    *1

9

LM EJ

O

Loading/tape operation motor control signal output to the MM1322XFBE (IC351)
(For the eject direction and reverse side operation)    *1

10

TUNON

O

Tuner system power supply on/off control signal output to the BA3918 (IC611)    “H”: tuner on

11

FM ON

O

FM system power supply on/off control signal output to the BA3918 (IC611)    “H”: FM on

12

PW ON

O

Main system power supply on/off control signal output to the BA3918 (IC611)    “H”: power on

13

MUT

O

Line muting control signal output terminal    “H”: line muting on

14

VOLCE

O

Chip enable signal output to the electrical volume  (IC331)

15

VOLCKO

O

Serial data transfer clock signal output to the electrical volume  (IC331)

16

VOLSO

O

Serial data output to the electrical volume  (IC331)

17

AMPON

O

Standby control signal output to the power amplifier  (IC751)    “L”: standby

18

AMPMUT

O

Muting control signal output to the power amplifier  (IC751)    “L”: muting on

19

DX/LO

O

Local/DX selection signal output to the FM/AM tuner unit (TU1)    “L”: DX, “H”: local

20

NCO

O

Not used (open)

21

GND

—

Ground terminal

22

DSTSEL

I

Destination setting terminal (fixed at center voltage)

23

D-BASS

I

D-BASS switch (SW951) input (A/D input)

24

KEYIN1

I

Key input terminal (A/D input)
6, INTRO 1, REPEAT 2, 3, BL SKIP 6, ATA 5, MTL 4 keys input (LSW921 to LSW927)

25

KEYIN0

I

26

RC IN0

I

Rotary remote commander shift key A/D input terminal

27

VSM

I

FM and AM (MW/LW) signal meter voltage detection input from the FM/AM tuner unit (TU1)

28

AMIFIN

I

AM (MW/LW) intermediate frequency detection signal input from the FM/AM tuner unit (TU1)

29

FMIFIN

I

FM intermediate frequency detection signal input from the FM/AM tuner unit (TU1)

30

VDD2

—

Power supply terminal (+5V)

31

FM OSC

I

FM local oscillator detection signal input from the FM/AM tuner unit (TU1)

32

AM OSC

I

AM (MW/LW) local oscillator detection signal input from the FM/AM tuner unit (TU1)

33

GND

—

Ground terminal

34

NCO

O

Not used (open)

35

EO1

O

Main charge-pump control signal output terminal

36

TEST0

I

Setting terminal for the test (fixed at “L”)

37

NCO

O

Not used (open)

38

SEKOUT

O

Seek control signal output to the FM/AM tuner unit (TU1)

39

MW SW

O

MW/LW selection signal output to the FM/AM tuner unit (TU1)    “L”: MW, “H”: LW

40

BEEP

O

Beep sound output terminal

Tape position detect input from tape operation switch on the mechanism block

Key input terminal (A/D input)
OFF, SOURCE, MODE 

*, + ) + SEEK AMS, – = 0 SEEK AMS, VOLUME –,

SEL, VOLUME +, ATT, DSPL, BTM, LCL  keys input
(LSW901 to LSW909, LSW930, LSW911 and LSW912)