HBD-E385, HBD-E390, HBD-T39 - Sony Audio Service Manual (repair manual). Page 77

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HBD-E385/E390/T39
77
MB148 BOARD (9/9) IC6301 R5F3650KCDFB (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
SIRCS_IN
I
SIRCS signal input from the remote control receiver
2
FAN CONT2
O
Fan motor speed control signal output terminal control by DA converter
Port output higher, speed slower
3
FL_D_OUT
O
Serial data output to the fl uorescent indicator tube driver
4
NO_USE
-
No used
5
FL_CLK
O
Serial data transfer clock signal output to the fl uorescent indicator tube driver
6
BYTE
I
External data bus width selection signal input terminal
7
CNVss
I
Processor mode selection signal input terminal
8
NO_USE
-
No used
9
NO_USE
-
No used
10
RESET
I
System reset signal input from the reset signal generator and reset switch  "L": reset
For several hundreds msec. After the power supply rises,  "L" is input, then it change to  "H"
11
Xout
O
System clock output terminal (8MHz)
12
Vss
-
Ground terminal
13
Xin
I
System clock input terminal (5MHz)
14
Vcc1
-
Power supply terminal (+3.3V)
15
CEC_TX_RX
I/O
CEC serial data input/output with the HDMI connector
16
NO_USE
-
No used
17
KEY_INT
I
Key wake-up signal input terminal
18
AC_CUT
I
AC cut detection signal input terminal  "L": AC cut
19
BD_IF_START
O
Ready signal output to the BD decoder  "H": ready
20
NO_USE
-
No used
21
NO_USE
-
No used
22
NO_USE
-
No used
23
BD_IF_REQ
I
Request signal input from the BD decoder
24
NO_USE
-
No used
25
PCONT_FL
O
Power supply on/off control signal output terminal for fl uorescent indicator tube driver  "H": 
power on
26
LED_PWM 1
O
LED drive signal output terminal
27
NO_USE
-
No used
28
NO_USE
-
No used
29
TXD1
O
No used
30
RXD1
I
No used 
31
ON CHIP DEBUG / 
CLK1
I
No used
32
NO USE / RTS1
O
No used
33
DAMP_SDAO
I/O
Two-way data bus with the DAMP processor
34
DAMP_SCLO
I/O
Serial data transfer clock signal output to the DAMP processor
35
DC_DET
I
Speaker DC detection signal input terminal  "L": speaker DC is detected
36
PCONT1
O
Power supply on/off control signal output terminal  "H": power on
37
PCONT2
O
Power supply control signal output terminal
38
PCONT3
O
Power supply on/off control signal output terminal  "H": power on
39
EPM
O
EPM for update used
40
STA516_POWER
O
STA516 IC Power Control,  "H": power on
41
NO_USE
-
No used
42
FAN_ON
O
Power supply on/off control signal output terminal for fan motor  "H": power on
43
NO_USE
-
No used
44
CE
I
Chip enable signal input terminal 
45
ST_SDA
I/O
Two-way data bus with the FM receiver
46
ST_SCL
I/O
Serial data transfer clock signal output to the FM receiver
47
PVDD_CONT
O
Power Supply PVDD control for eco used
48
DRIVER_RST (EN)
O
Reset signal output to the power amplifi er  "L": reset
49
NO_USE
-
No used
50
DAMP_PDN
O
DAMP Driver Standby Control
51
DAMP XRST
O
Reset signal output to the DAMP processor  "L": reset
52
DAMP_XMUTE
O
Muting on/off control signal output to DAMP processor  "L": muting on
53
NO_USE
-
No used
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