Read Sony CDX-T70MXDC Service Manual online
33
CDX-T70MXDC/MP3 CDC 6
•
IC Pin Function Description
MAIN BOARD IC301 HD6432238RWP01TEIV (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
TEST
I
Test mode setting terminal "L": test mode Not used
2
DECXRST
O
Reset signal output to the CD-ROM/MP3 decoder "L": reset
3
DECSTBY
O
Standby mode control signal output to the CD-ROM/MP3 decoder "H": standby
4
FOK
I
Focus OK signal input from the DSP "L": NG, "H": OK
5
GFS
I
Guard frame sync signal input from the DSP "L": NG, "H": OK
6
SCLK
O
Serial data reading clock signal output to the DSP
7
SENS
I
Internal status signal (sense signal) input from the DSP
8
CDCLK
O
Serial data transfer clock signal output to the DSP
9
CDLAT
O
Serial data latch pulse signal output to the DSP
10
CDDAT
O
Serial data output to the DSP
11
XRST
O
System reset signal output to the DSP "L": reset
12
CVCC
-
Power supply terminal (+3.3V) (for system)
13
NC
O
Not used
14
VSS
-
Ground terminal
15
XQOK
O
Subcode Q OK pulse signal output to the DSP
16
XRDE
O
Read enable signal output to the DSP
17
XWRE
O
Write enable signal output to the DSP
18
DAC-DATA
O
Mode control data output to the D/A converter
19
DAC-CLK
O
Mode control data transfer clock signal output to the D/A converter
20
DAC-LAT
O
Mode control data latch pulse signal output to the D/A converter
21
ESPSEL
I
ESP mode setting terminal "L": ESP on (fixed at "L" in this set)
22
TEXTSEL
I
CD text mode setting terminal "L": CD text on (fixed at "L" in this set)
23
CFSEL
I
Custom file on/off setting terminal "L": custom file on (fixed at "L" in this set)
24
DOUT SEL
I
Input terminal for digital out on/off setting "L": digital out on Not used
25
MAG-SW
I
Magazine detect switch input terminal "L": magazine in
26
MUTE
O
Audio line muting on/off control signal output "H": muting on
27, 28
NC
O
Not used
29
CDON
O
D/A convert and servo sections power supply on/off control signal output "H": power on
30
EVON
O
Mechanism deck section power supply on/off control signal output "H": power on
31
PCTX
O
PC connecting output terminal for UART
32
PCRX
I
PC connecting input terminal for UART
33 to 35
NC
O
Not used
36
ELVF
O
Motor drive signal (elevator up direction) output to the elevator motor drive
37
ELVR
O
Motor drive signal (elevator down direction) output to the elevator motor drive
38
SCOR
I
Subcode sync (S0+S1) detection signal input from the DSP
39
NC
O
Not used
40
GRSCOR
I
Subcode sync (S0+S1) detection signal input from the DSP
41
NC
O
Not used
42
AVSS
-
Ground terminal (for A/D converter)
43 to 49
NCI
I
Not used
50
EHS
I
Elevator height position detection signal input from the elevator height sensor (A/D input)
51
NCI
I
Not used
52
MCK
I
Input of detection signal for the fine adjustment (elevator height (address) adjustment) of
elevator height position (A/D input)
elevator height position (A/D input)
53
VREF
I
Reference voltage (+3.3V) input terminal (for A/D converter)
54
AVCC
-
Power supply terminal (+3.3V) (for A/D converter)
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