Read Sony HCD-FX250 Service Manual online
HCD-FX250
HCD-FX250
13
13
• IC Pin Function Description
PANEL BOARD IC801 LC87F7DJ2BVU-QIP-E (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
O-CD-CE
O
Chip enable signal output to the CD-MP3 processor
2
O-CD-M-MUTE
O
Muting signal output to the coil/motor driver
3
O-CD-DO
O
Serial data output to the CD-MP3 processor
4
I-CD-DI
I
Serial data input from the CD-MP3 processor
5
O-CD-CLK
O
Serial data transfer clock signal output to the CD-MP3 processor
6
O-USB-RES
O
Reset signal output terminal Not used
7
O-USB-SLEEP
O
Sleep signal output terminal Not used
8
O-USB-POW
O
USB VBUS +5V power supply on/off control signal output terminal Not used
9
O-iPod-POW
O
iPod VBUS +5V power supply on/off control signal output terminal Not used
10
I-OVERCURRENT
I
Over current detection signal input terminal Not used
11
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 change to “H”
For several hundreds msec. after the power supply rises, “L” is input, then it change to “H”
12
Sub Clock (32kHz)
I
Sub system clock input terminal (32.768 kHz)
13
Sub Clock (32kHz)
O
Sub system clock output terminal (32.768 kHz)
14
VSS1
-
Ground terminal
15
Main Clock (15kHz)
I
Main system clock input terminal (15 MHz)
16
Main Clock (15kHz)
O
Main system clock output terminal (15 MHz)
17
VDD1
-
Power supply terminal (+3.3V)
18
I_SUFFIX
I
Destination setting terminal
19, 20
I_KEY1, I_KEY2
I
Front panel key input terminal (A/D input)
21
NC
-
Not used
22
_I-TUNE
I
Tuned detection signal input terminal Not used
23
O-AUDIO IC-DATA
O
Serial data output to the electrical volume
24
O-AUDIO IC-CLK
O
Serial data transfer clock signal output to the electrical volume
25
I-LEVEL
I
Sound level detection signal input from the electrical volume
26
I_POWER_MONITOR
I
Power supply monitor terminal
27
_I-AC-CUT
I
AC cut detection signal input terminal “L”: AC cut is detected
28
_I-WAKEUP
I
Wake-up signal input terminal by power switch key is pressed “L”: wake-up
29
I-RMC(SIRCS)
I
SIRCS signal input from the remote control receiver
30
I-PROTECT
I
Protect signal input terminal “H”: protect on
31
NC
-
Not used
32
I-VOL-ENC-A
I
Jog dial pulse input from the rotary encoder (A phase input) (for volume)
33
I-VOL-ENC-B
I
Jog dial pulse input from the rotary encoder (B phase input) (for volume)
34
O-AMP-ON
O
Standby signal output to the power amplifi er “L”: standby
35
O-POWER
O
System power supply on/off control signal output terminal “H”: power on
36
O-CD-POW
O
CD power supply on/off control signal output terminal “H”: power on
37
O-TU-DO
O
Serial data output terminal Not used
38
O-DAB-1.2V
O
DAB/FM tuner +1.2V power supply on/off control signal output terminal “H”: power on
39
O-DAB-3V
O
DAB/FM tuner +3.3V power supply on/off control signal output terminal “H”: power on
40
O-DAB-RESET
O
Reset signal output terminal Not used
41
I-RDS-DATA
I
RDS serial data input terminal Not used
42
O-RDS-POWER
O
RDS power supply on/off control signal output terminal Not used
43, 44
NC
-
Not used
45
I-iPod-WAKE
I
Wake-up signal input terminal by iPod is connected “L”: wake-up
46 to 53
SEG1 to SEG8
O
Segment drive signal output to the liquid crystal display
54
VDD2
-
Power supply terminal (+3.3V)
55
VSS2
-
Ground terminal
56 to 79
SEG9 to SEG32
O
Segment drive signal output to the liquid crystal display
80 to 82
LCD V3 to LCD V1
I
Liquid crystal display drive voltage setting terminal
83 to 86
COM1 to COM4
O
Common drive signal output to the liquid crystal display
87
O-LED-LCD
O
LED drive signal output terminal for liquid crystal display backlight “H”: LED on
88
I-CD-SW
I
CD lid open/close detection switch input terminal “L”: CD lid is opened
89
VSS3
-
Ground terminal
90
VDD3
-
Power supply terminal (+3.3V)
91
O-iPod_TXD
O
Serial data output terminal Not used
92
I-iPod_RXD
I
Serial data input terminal Not used
93
O-DAB_TXD
O
Serial data output to the DAB/FM tuner
Pin No.
Pin Name
I/O
Description
94
I-DAB_RXD
I
Serial data input from DAB/FM tuner
95 to 97
DEBUG 0 to
DEBUG 2
-
Debug terminal
98
i-iPod-DET
I
iPod detection signal input terminal Not used
99
I-RDS-CLK
I
RDS serial data transfer clock signal input terminal Not used
100
O-CD-RES
O
Reset signal output to the CD-MP3 processor “L”: reset
Click on the first or last page to see other HCD-FX250 service manuals if exist.