Read Sony BMZ-K7D / CX-BK7 Service Manual online
111
CX-BK7
•
MAIN BOARD IC901 uPD70F3259YGF-JBT-A (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
I-RDS_SIG
I
RDS signal input from the tuner unit (AEP and UK models)
Not used (Except AEP and UK models)
Not used (Except AEP and UK models)
2
I-RDS_DATA
I
Serial data input from the tuner unit (AEP and UK models)
Not used (Except AEP and UK models)
Not used (Except AEP and UK models)
3
AVREF0
I
Reference voltage (+3.3V) input terminal (for A/D converter)
4
AVSS
—
Ground terminal (for A/D converter)
5
O-M_ECHO
O
Serial data latch pulse signal output to the digital echo
6
I-DO
I
Serial data input from the tuner unit
7
AVREF1
I
Reference voltage (+3.3V) input terminal (for A/D converter)
8
I-STEREO
I
FM stereo detection signal input from the tuner unit
9
I-TUNE
I
Tuning detection signal input from the tuner unit
10
FLMD0
I
Write permission signal input terminal Not used
11
VDD
—
Power supply terminal (+3.3V)
12
REGC
—
Connected to the external capacitor
13
VSS
—
Ground terminal
14
X1
I
Main system clock input terminal (5 MHz)
15
X2
O
Main system clock output terminal (5 MHz)
16
RESET
I
System reset signal input from the reset signal generator “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”
17
XT1
I
Sub system clock input terminal (32.768 kHz)
18
XT2
O
Sub system clock output terminal (32.768 kHz)
19
I-DNK-12/15
O
Model setting terminal “L”: DNK12, “H”: DNK15
20
I-RDS_CLK
I
RDS serial data transfer clock signal input from the tuner unit (AEP and UK models)
Not used (Except AEP and UK models)
Not used (Except AEP and UK models)
21
I-MIC_DET
I
Microphone detection signal input terminal “H”: microphone in
22
CAN'T_USE
—
Not used
23
I-RMC
I
Remote control signal input terminal
24
I2C-USB_DATA
I/O
Two-way I2C data bus with the USB interface
25
I2C-USB_CLK
I/O
Two-way I2C clock bus with the USB interface
26
I-DECK_PLAYSW
I
Play switch signal input from the tape mechanism deck
27
I-DECK_ENDSW
I
End switch signal input from the tape mechanism deck
28
I-DECK_PACK
I
Pack switch signal input from the tape mechanism deck
29
I-DECK_FREC
I
Record protect (forward direction) detect switch signal input from the tape mechanism deck
30
I-DECK_RREC
I
Record protect (reverse direction) detect switch signal input from the tape mechanism deck
31
I-USB_ACK
I
Acknowledge signal input from the USB interface
32
I-USB_INT
I
Interrupt request signal input from the USB interface
33
O-USB_VBUS_ON
O
USB on/off control signal output terminal
34
STBY
O
LED drive signal output of the STANDBY indicator “L”: LED on
35
EVSS
—
Ground terminal
36
EVDD
—
Power supply terminal (+3.3V)
37
I2C_DATA
I/O
Two-way I2C data bus with the DVD system processor and mechanism controller
38
I2C_CLK
I/O
Two-way I2C clock bus with the DVD system processor and mechanism controller
39
O-MUTE
O
Muting on/off control signal output to the front amplifier circuit “H”: muting on
40
O-POWER
O
Main power on/off control signal output terminal
41
I-POWER_DOWN
I
AC detection signal input terminal “L”: power down
Click on the first or last page to see other BMZ-K7D / CX-BK7 service manuals if exist.