Ic Pin Function Description - Aiwa CX-JV4 Service Manual

CX-JV4

6-26. IC PIN FUNCTION DESCRIPTION

• BD BOARD IC101 CXD3068Q (DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO PROCESSOR)
Pin No. Pin Name
1 DVDD0
2 XRST
3 MUTE
4 DATA
5 XLAT
6 CLOK
7 SENS
8 SCLK
9 ATSK
10 WFCK
11 XUGF (RFCK)
12 XPCK
13 GFS
14 C2PO
15 SCOR
16 C4M
17 WDCK
18 DVSS0
19 COUT
20 MIRR
21 DFCT
22 FOK
23 PWMI
24 LOCK
25 MDP
26 SSTP
27 FSTO
28 DVDD1
29 SFDR
30 SRDR
31 TFDR
32 TRDR
33 FFDR
34 FRDR
35 DVSS1
36 TEST
37 TES1
38 VC
39 FE
40 SE
41 TE
42 CE
43 RFDC
44 ADIO
45 AVSS0
46 IGEN
52
I/O
—
Power supply terminal (+3.3V) (digital system)
I
Reset signal input from the MPEG video/audio decoder
I
Muting on/off control signal input terminal "H": muting on Not used
I
Serial data input from the MPEG video/audio decoder
I
Serial data latch pulse signal input from the MPEG video/audio decoder
I Serial data transfer clock signal input from the video CD MPEG processor
O
Internal status (SENSE) signal output to the MPEG video/audio decoder
I
SENSE serial data reading clock signal input from the MPEG video/audio decoder
I/O
Input/output terminal for anti-shock Not used
O Write frame clock signal output terminal Not used
O
XUGF (RFCK) signal output terminal Not used
O
XPCK signal output terminal Not used
O
Guard frame sync signal output to the video CD MPEG processor
O C2 pointer signal output to the MPEG video/audio decoder
O
Subcode sync (S0+S1) detection signal output to the MPEG video/audio decoder
O
4.2336 MHz clock signal output terminal Not used
O
Guard subcode sync (S0+S1) detection signal output terminal Not used
— Ground terminal (digital system)
O
Numbers of track counted signal output terminal Not used
O
Mirror signal output terminal Not used
I/O
Defect signal input/output terminal Not used
O Focus OK signal output to the video CD MPEG processor
I
Spindle motor external control signal input terminal Not used
O
GFS is sampled by 460 Hz "H" output when GFS is "H"
O
Spindle motor servo drive signal output to the motor/coil driver
I Detection signal input from limit in switch The optical pick-up is inner position when "H"
O
2/3 divider output terminal Not used
—
Power supply terminal (+3.3V) (digital system)
O
Sled servo drive PWM signal (+) output terminal
O Sled servo drive PWM signal (–) output terminal
O
Tracking servo drive PWM signal (+) output terminal
O
Tracking servo drive PWM signal (–) output terminal
O
Focus servo drive PWM signal (+) output terminal
O Focus servo drive PWM signal (–) output terminal
—
Ground terminal (digital system)
I
Input terminal for the test
I
Input terminal for the test
I Middle point voltage (+1.65V) input terminal
I
Focus error signal input from the RF amplifier
I
Sled error signal input from the RF amplifier
I
Tracking error signal input from the RF amplifier
I
Middle point servo analog signal input terminal
I
RF signal input from the RF amplifier
O
Output terminal for the test Not used
—
Ground terminal (analog system)
I
Stabilized current input for operational amplifiers
Description
"L": reset