Sony HCD-VX222 Service Manual page 46

HCD-VX222
VIDEO BOARD IC502 M30620MCA-B22FP (CD MECHANISM CONTROLLER)
Pin No. Pin Name I/O
1 SENSE
2 SENSE CLK O
3 RESOLUTION O
4 CHROMA LEVEL O
5 DSP CLK O
6 TSENS O
7 REMOTE IN
8 BYTE
9 CN VSS —
10 DSP MUTE O
11 CTRL1 O
12 XRESET
13 XOUT O
14 VSS —
15 XIN
16 VCC
17 NMI
18 SCOR
19 DSENS O
20 CL680 HINT
21 CL680 HSEL O
22 DF LATCH O
23 CL680 HRDY
24 CL680 RESET O
25 H.SYNC IN
26 BGP O
27 LPH O
28 LD ON O
29 12C.CLK I/O
30 12C.DATA I/O
31 DATA1O O
32 DATA1I
33 CLK1 O
34 RTS1 O
35 XVLEVEL.DOWN O
36 SUBQ DATA
37 SUBQ CLK O
38 P.ON O
39 BUS XRDY
40 BUS O
41 BUS XHOLD
42, 43 BUS O
44 OSD.LANGUAGE
45 VSYNC
46 BUS XWRL O
47 LO.BOOST O
48 AUDIO MUTE O
49 LOAD OUT O
50 LOAD IN O
51 INSW
46
I Internal status (SENSE) signal input from the CXD3008Q (IC101)
Sense serial data reading clock signal output to the CXD3008Q (IC101)
Y resolution output
Chroma level output
Serial data transfer clock signal output to the CXD3008Q (IC101)
Not used (open)
I Remote control signal input terminal. Not used (open)
I External data bus line byte selection signal input "L": 16 bit, "H": 8 bit (fixed at "L")
Ground terminal
Muting on/off control signal output to the CXD3008Q (IC101) "H": muting on
Clock selection signal output to the CXD3008Q (IC101) "L": 16.9344 MHz (double speed), "H": 33.8688 MHz
Reset signal input from the system controller (IC501) "L": reset
I
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
Main system clock output terminal (10 MHz)
Ground terminal
I Main system clock input terminal (10 MHz)
I Power supply terminal (+5V)
I Non-maskable interrupt input terminal (fixed at "H" in this set)
I Subcode sync (S0+S1) detection signal input from the CXD3008Q (IC101)
Not used (open)
I Interrupt request signal input from the host MPU (IC505)
Video CD select data of the host MPU (IC505)
Serial data latch pulse output to the D/A converter (IC509) "L" active
I Ready signal input for communication to the host MPU (IC505)
Reset signal output to the MPEG video/audio decoder (IC505) "L": reset
I Horizontal sync signal input
Burst gate pulse signal output
AGC hold signal output
Laser power selection signal output to the CXA2568M (IC103) "H": laser on
I 2 C clock signal from CD mechanism control (IC501).
I 2 C data signal from CD mechanism control (IC501).
Serial data output to the MPEG video/audio decoder (IC506) and D/A converter (IC509)
I Serial data input from the MPEG video/audio decoder (IC506)
Serial data transfer clock signal output to the MPEG video/audio decoder (IC506) and D/A converter (IC509)
RTS signal to serial port (check connector).
Not used (open)
I Sub-code Q data input from the CXD3008Q (IC101)
Sub-code Q data reading clock signal output to the CXD3008Q (IC101)
Power on/off control signal output terminal. Not used (open)
I Ready signal input terminal. Not used (fixed at "H")
Not used (open)
I Hold signal input terminal. Not used (fixed at "H")
Not used (open)
I OSD language select input terminal "H": English, "L": China
I Vertical sync signal input
Bus write signal output.
Not used (open)
Audio muting on/off control signal output terminal "L": muting on. Not used (open)
Loading motor drive signal output terminal. Not used (open)
Loading motor drive signal output terminal. Not used (open)
I Disc detection (load in) switch input terminal. Not used (fixed at "H")
Description