Pioneer CRT3452 Service Manual page 106

1
Pin No. Pin Name
96 VSS
97 PB0
A
98 PB1
99 VCC
100 PB2
101 PB3
102 PB4
103 PB5
104 PB6
105 PB7
106 VSS
107 PB8
108 PB9
109 PB10
B
110 PB11
111 PB12
112 PB13
*PD3411A
29
C
56
D
*TC74VHC139FT
VCC 2G
16 15
E
1 2
F
1A
1G
106
1
2
I/O Function and Operation
GND
I STEP 2 DMA transfer DREQ
I Power supply terminal
Power supply terminal
I Transfer end interruption
I AV Chip interruption #2
I STEP 2 receive interruptio n
I STEP 2 transmit interruption #1
I CARNET4 chip select
I CARNET4 chip power
GND
I Serial bus data input
I Serial bus data output
I RS232C RxD
I RS232C TxD
I Serial bus clock input/output
I MY-Chip interruption #0
112
85
2A 2B 2Y0
14 13 12
3 4
5
1B 1Y1
1Y0
XDV-M8357ZT/UC
2
3
*TC74VHC00FTS1
14 13 12
1 2 3
2Y1 2Y2
2Y3
11
10 9
6
7 8
1Y2 1Y3
GND
3
4
9 8
11 10
4 5 6 7
4