Sony TA-FA30ES Service Manual ▷ View online
– 19 –
– 20 –
4-7.
SCHEMATIC DIAGRAM – PANEL Section –
•
See page 25 for IC Block Diagram.
TA-FA30ES
• Waveform
1
IC901
#™
(XOUT)
4.4 Vp-p
8 MHz
(Page 16)
(Page 16)
(Page 11)
(Page 11)
(Page 15)
4-8.
PRINTED WIRING BOARDS – POWER Section –
•
See page 7 for Circuit Boards Location.
TA-FA30ES
– 21 –
– 22 –
(Page 14)
(Page 14)
– 23 –
– 24 –
4-9.
SCHEMATIC DIAGRAM – POWER Section –
TA-FA30ES
The components identified by mark
!
or dotted
line with mark
!
are critical for safety.
Replace only with part number specified.
(Page 16)
(Page 15)
– 25 –
– 26 –
4-10.
IC PIN FUNCTION DESCRIPTION
• IC Block Diagrams
IC700
µPC1237HA (SP TM BOARD)
IC903
BA6208 (PANEL BOARD)
1
2
3
4
5
6
7
8
OVER LOAD DET
F/F
OFFSET DET
LATCH/
AUTORESET
V
CC
ON
MUTE
AC OFF
DET
V
CC
1
2
3
4
5
6
7
8
9
NC
OUTPUT 2
Vcc
GND
NC
INPUT 2
INPUT 1
NC
MOTOR
DRIVE
MOTOR
DRIVE
REG
SWITCH
SWITCH
OUTPUT1
•
PANEL BOARD IC901 TMP47C200BN-H351 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Function
1
RCL
O
Serial clock signal output to the EEPROM (IC902)
2
RDT
I/O
Two-way data bus with the EEPROM (IC902)
3
VDW
O
Volume motor drive signal output to the BA6208 (IC903) (for volume down direction)
“H” active
“H” active
4
VUP
O
Volume motor drive signal output to the BA6208 (IC903) (for volume up direction)
“H” active
“H” active
5
CD
O
Function relay (for CD) drive signal output terminal “H”: relay on (CD on)
6
MUT
O
Muting control signal output terminal “H”: muting on Not used (pull up)
7
AUX
O
Function relay (for AUX) drive signal output terminal “H”: relay on (AUX on)
8
—
—
Not used (fixed at “L”)
9
T2
O
Function relay (for TAPE2/MD) drive signal output terminal “H”: relay on (TAPE2/MD on)
10
T1
O
Function relay (for TAPE1/DAT) drive signal output terminal “H”: relay on (TAPE1/DAT on)
11
SW0
I
Input selector switch (S903) input terminal “H”: TAPE1/DAT, “L”: other function
12
SW1
I
Input selector switch (S903) input terminal “H”: TAPE2/MD, “L”: other function
13
SW2
I
Input selector switch (S903) input terminal “H”: AUX, “L”: other function
14
SW3
I
Input selector switch (S903) input terminal “H”: CD, “L”: other function
15
SW4
I
Input selector switch (S903) input terminal “H”: TUNER, “L”: other function
16
SW5
I
Input selector switch (S903) input terminal “H”: PHONO, “L”: other function
17
PHONO
O
Function LED (PHONO) drive signal output terminal “L”: LED on
18
TUNER
O
Function LED (TUNER) drive signal output terminal “L”: LED on
19
CD
O
Function LED (CD) drive signal output terminal “L”: LED on
20
AUX
O
Function LED (AUX) drive signal output terminal “L”: LED on
21
GND
—
Ground terminal
22
—
—
Not used (open)
23
T2
O
Function LED (TAPE2/MD) drive signal output terminal “L”: LED on
24
T1
O
Function LED (TAPE1/DAT) drive signal output terminal “L”: LED on
25 to 29
—
—
Not used (fixed at “L”)
30
TEST
—
Not used (open)
31
XIN
I
System clock input terminal (8 MHz)
32
XOUT
O
System clock output terminal (8 MHz)
33
RESET
I
System reset signal input from the reset signal generator (IC905) “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”
34
HOLD
I
Cancellation of hold mode signal “H”: start
35
TUNER
O
Function relay (for TUNER) drive signal output terminal “H”: relay on (TUNER on)
36
PHONO
O
Function relay (for PHONO) drive signal output terminal “H”: relay on (PHONO on)
37
SIRCS
I
Remote control signal input from the remote control receiver (IC904)
38 to 41
—
—
Not used (fixed at “L”)
42
+5V
—
Power supply terminal (+5V)
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