Read Sony TA-FB930R Service Manual online
14
14
3-11. IC PIN FUNCTION
• IC902 Input Control & LED Drive (TMP47C103N-JP47) (Panel Board)
O
I
I
I
O
O
I
I
I
I
O
O
O
—
O
O
O
O
O
I
I
I
O
O
O
O
I
—
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
X OUT
X IN
RESET
PMD
VOL +
VOL –
SW 0
SW 1
SW 2
EON
PHONO
TUNER
CD
GND
AUX
MD/DAT
TAPE
MON
PRY
PKY
MOI
SIRCS
MUTE
SCE
SDT
SCK
STOP
+3V
System clock (4MHz)
Reset input
Mode select input (Connected to ground)
Motor drive output (+)
Motor drive output (–)
Rotary switch input (CD)
Rotary switch input (TUNER)
Rotary switch input (PHONO)
EON signal input
PHONO LED drive output
TUNER LED drive output
CD LED drive output
Ground
AUX LED drive output
TAPE “2” LED drive output
TAPE “1” LED drive output
MONITOR output (Connected to ground)
Power relay output
Power key input (Connected to ground)
MONITOR input (Connected to ground)
SIRCS input
Muting output (Connected to ground)
Chip enable output (Connected to ground)
Serial data output (Connected to ground)
Serial clock output (Connected to ground)
STOP input
+3V Power supply
I/O
Function
Pin No.
Pin Name
3-10. IC BLOCK DIAGRAMS
• Main Board
IC700 uPC1237HA
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
• Panel Board
IC901 BA6208
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
Click on the first or last page to see other TA-FB930R service manuals if exist.