Read Sony BMZ-K2 / CX-BK2 Service Manual online
65
CX-BK2
•
MAIN BOARD IC901 uPD703260YGF-S04-JBT-A (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
RDS_SIG
I
Tuning signal level input terminal Not used
2
RDS_DATA
I
Serial data input terminal Not used
3
AVREF0
—
Reference voltage (+3.1V) input terminal
4
AVSS
—
Ground terminal
5
MICS
O
Chip select signal output to the MP3 decoder
6
DO
I
Serial data input from the tuner unit
7
AVREF1
—
Power supply terminal (+3.1V)
8
STEREO
I
Stereo detection signal input from the tuner unit
9
TUNE
I
Tuner tuned status signal from the tuner unit
10
FLMD0
—
Not used
11
VDD
—
Power supply terminal (+3.1V)
12
REGC
—
Connected to the external capacitor
13
VSS
—
Ground terminal
14
X1
I
Main system clock input terminal (5MHz)
15
X2
O
Main system clock output terminal (5MHz)
16
RESET
I
Reset signal input from the reset signal generator “L”: reset
17
XT1
I
Sub system clock input terminal (32.768kHz)
18
XT2
O
Sub system clock output terminal (32.768kHz)
19
MP3RST
O
System reset signal output to the MP3 decoder
20
RDS_CLK
I
Clock signal input Not used
21
SCOR
I
SCOR signal input from the digital signal processor
22
CAN'T_USE
—
Not used
23
RMC
I
Remote control signal input from the remote control receiver
24
USB_DATA
I/O
I2C data input/output with the USB interface IC
25
USB_CLK
I/O
I2C clock signal input/output to the USB interface IC
26
DECK_PLAYSW
I
PLAY switch signal input terminal Not used
27
DECK_ENDSW
I
END switch signal input terminal Not used
28
DECK_PACK
I
PACK switch signal input terminal Not used
29
DECK_FREC
I
Record protect detect switch signal input terminal Not used
30
DECK_RREC
I
Record protect detect switch signal input terminal Not used
31
USB_ACK
I
Acknowledge signal input from the USB interface IC
32
USB_INT
I
Interrupt request signal input from the USB interface IC
33
USB_VBUS_ON
O
VBUS control signal output terminal
34
STBY
O
Standby LED control signal output terminal
35
EVSS
—
Ground terminal
36
EVDD
—
Power supply terminal (+3.1V)
37
MIACK
I
Acknowledge signal input from the MP3 decoder
38
MP3STB
O
Strobe signal output to the MP3 decoder
39
MUTE
O
Muting control signal output to power amplifier circuit
40
POWER
O
Main power control signal output terminal
41
POWER_DOWN
I
Power down detection signal input terminal
42
HEADPHONE
I
Headphone detection signal input “L”: headphone on
43
SHIFT_CLK
O
Serial data transfer clock signal output to the shift register
44
SHIFT_DATA
O
Serial data output to the shift register
45
SHIFT_STB
O
Strobe signal output to the shift register
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