Sony TRINITRON BVM-14G1A Operation And Maintenance Manual page 214

HC Board Waveforms HC Board IC Block Diagrams
1
TC74VHC138F (IC3)
Vcc Y0 Y1 Y2
16 15 14 13
2.1Vp-p (20MHz)
Y0 Y1 Y2
A
B C G2A
1 2 3 4
A B C G2A
TC74VHC245F (IC4, 8)
ENABLE
Vcc G B1 B2
20 19 18 17
7
1 2 3 4
DIR A1 A2 A3
TC74VHC541F (IC5, 6)
G1 1
A1 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 9
GND 10
TC74VHC574F (IC7, 10)
Vcc 1Q 2Q 3Q
20 19 18 17
Q OE Q OE Q OE
D CK D CK D CK
1 2 3 4
OC 1D 2D 3D
A B
Y3 Y4 Y5 T6
12 11 10 9
Y3 Y4 Y5
Y6
G2B G1 Y7
5 6 7 8
G2B G1 Y7 GND
B3 B4 B5 B6 B7 B8
16 15 14 13 12 11
5 6 7 8 9 10
A4 A5 A6 A7 A8 GND
20 V DD
19 G2
18 Y1
17 Y2
16 Y3
15 Y4
14 Y5
13 Y6
12 Y7
11 Y8
4Q 5Q 6Q 7Q 8Q CLK
16 15 14 13 12 11
Q OE Q OE Q OE Q OE Q OE
D CK D CK D CK D CK D CK
5 6 7 8 9 10
4D 5D 6D 7D 8D GND
11-52
C
HC
D E F G H