Service manual

66
DV-NC55U/C/M
Pin No. Terminal Name In/Output Operation function 3/5V system Remarks
55 NC
––
56 NC
57 SMCK Output 22M system clock output 5V system
58 VMCK Output Data output system (signal processing 5V system
system) clock output
59 VDD3 – 3.3V digital power supply –
60 PD0 Output DVD/CD data output 5V system
61 VSS5 – 5V ground supply –
62 PD1
63 PD2
Output DVD/CD data output 5V system
64 PD3
65 PD4
66 VSS3 – 3.3V digital ground –
67 PD5
68 PD6
Output DVD/CD data output 5V system
69 PD7
70 PD8
71 /PSYC Output DVD data sector sync signal 5V system
72 /PDRQ Output DVD data transfer block 5V system
73 PDCK Output DVD data transfer block 5V system
74 VDD5 – 5V power supply –
75 TESM3 – Test terminal 5V system Connected to VSS5
76 DIGI Input 1 bit DAC digital IN input 5V system
77 TESM4 – Test terminal 5V system Connected to VDD5
78 VDD3 – 3.3V digital power supply –
79 BA0
80 BA1
Output External RAM address output 5V system
81 BA2
82 BA3
83 VSS5 – 5V ground supply –
84 BA4
85 BA5
86 BA6 Output External RAM address output 5V system
87 BA7
88 BA8
89 VDD3 – 3.3V digital power supply –
90 /BOE Output External RAM/OE signal 5V system
91 /BRAS Output External RAM/RAS signal 5V system
92 /BCAS Output External RAM/UCAS signal 5V system
93 /BCASL Output External LCAS/WE signal 5V system
94 /BWE Output External RAM WE signal 5V system
95 VDD5 – 5V power supply –
96 BD0
97 BD1
98 BD2
99 BD3
100 BD4 In/Output External RAM data I/O 5V system
101 BD5
102 BD6
103 BD7
104 BD8
105 VSS3 – 3.3V digital ground –
106 BD9
107 BD10
In/Output External RAM data I/O 5V system
108 BD11
109 BD12
110 VSS5 – 5V ground supply –