Sony HCD-VX777 Service Manual page 52

HCD-VX777
• IC502 VIDEO CD CONTROL (M30622MGA-A45FP) (VIDEO Board (1/3))
Pin No. Pin Name
1 SENSE
2 SENSE CLK
3 RESOLUTION
4 CROMA LEVEL
5 DSP CLK
6 TSENS
7 REMOTE IN
8 BYTE
9 CNVSS
10 DSP MUTE
11 CTRL1 (L : DOUBLE)
12 XRESET
13 XOUT
14 VSS
15 XIN
16 VCC
17 NMI
18 SCOR
19 D SENS
20 CL680 INT
21 H. SYNC IN
22 BGP
23 —
24 PWM3 (BD)
25 —
26 PWM2 (BD)
27 —
28 PWM1 (BD)
2
29 I C. CLK
30 I 2 C. DATA
31 DATA1O
32 DATA1I
33 CLK1
34 RTS1
35 DATA0
36 DATA1
37 CLK1
38 P. ON
39 BUS XRDY
40 BUS
41 BUS XHOLD
42, 43 BUS
44 BUS XRD
45 V. SYNC
46 BUS XWRL
47 LO. BOOST
48 AUDIO MUTE
49 LOAD OUT
50 LOAD IN
52
I/O
I Internal state (SENSE) monitor input (IC101)
O Serial data reading clock output (IC101)
O Serial data output (IC101)
O Lach output (IC101)
O Serial data clock output (IC101)
I Not used
I Not used
I External bus width change input (Connected to ground)
– Ground
O Mute output (IC101) "H" : mute
O Double change output (IC101) "L" : double
I System reset input "L" : reset
O Main clock output (10MHz)
– Ground
I Main clock input (10MHz)
– +5V power supply
I Requests mask disable interruption input (Connected to +5V)
I Subcode sync input (IC101)
I Not used
I Video CD interruption input (IC505)
I H. sync signal input
I BGP output
I Not used
O
I Not used
O
I Not used
O
2
I/O I C clock input from master control
I/O I 2 C data input from master control
O Serial 1 data output (IC505, 509)
I Serial 1 data input (IC505, 509)
O Serial 1 clock output
O
I Serial 0 data output (DF, CL680)
I Serial 0 data input (DF, CL680)
O Serial 0 clock output (DF, CL680)
I Not used
I Not used
I Not used
I Not used
I Not used
I Model selection input "L" : chinese model, "H" : except chinese model
I V sync signal input
I Not used
I Not used
O Audio mute output "L" : mute (Not used)
I Not used
I Not used
Function