Read Sony TA-FE320R / TA-FE520R Service Manual online
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3-8.
IC PIN FUNCTION DESCRIPTION
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CONTROL BOARD IC801 TMP47C103N-JP47 (FUNCTION SWITCH CONTROL, LED DRIVER)
Pin No.
Pin Name
I/O
Function
1
XOUT
O
Main system clock output terminal (4 MHz)
2
XIN
I
Main system clock input terminal (4 MHz)
3
RESET
I
System reset signal input terminal “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
4
PMD
I
Mode select input terminal Fixed at “H” in this set
5
VOL+
O
Motor drive signal output to the volume motor drive (IC802) (volume up direction)
6
VOL–
O
Motor drive signal output to the volume motor drive (IC802) (volume down direction)
7
SW0
I
8
SW1
I
Rotary switch input of the INPUT SELECTOR (S801)
9
SW2
I
10
EON
I
Detection signal input of the enhanced other networks (EON) Used for the TA-FE520R only
11
PHONO
O
LED drive signal output of the PHONO LED (D808) “L”: LED on
12
TUNER
O
LED drive signal output of the TUNER LED (D809) “L”: LED on
13
CD
O
LED drive signal output of the CD LED (D810) “L”: LED on
14
GND
—
Ground terminal
15
AUX
O
LED drive signal output of the AUX LED (D811) “L”: LED on
16
DAT
O
LED drive signal output of the TAPE2/MD LED (D812) “L”: LED on
17
TAPE
O
LED drive signal output of the TAPE1/DAT LED (D813) “L”: LED on
18
MON
O
Tape monitor on/off control signal output terminal “L”: tape monitor on
Used for the TA-FE520R only
Used for the TA-FE520R only
19
PRY
O
AC on/off relay drive signal output terminal “L”: power on, “H”: standby mode
20
PKY
I
Power switch (S1; I/
u) input terminal “H”: power on
21
MON
I
Tape monitor switch (S802) input terminal When pressing the key: “H”
22
SIRCS
I
Sircs signal input from the remote control receiver (IC803)
23
MUTE
O
Audio line muting on/off control signal output terminal “H”: muting on
24
SCE
O
Chip enable signal output to the function switch (IC101)
25
SDT
O
Serial data output to the function switch (IC101)
26
SCK
O
Serial data transfer clock signal output to the function switch (IC101)
27
STOP
I
Detection signal input of the AC input
28
+3V
—
Power supply terminal (+3V)
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