Sony HCD-VX777, Руководство по обслуживанию

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