Yamaha HTR-5920 Service Manual page 22

HTR-5920
IC24: CD4094B (INPUT P.C.B.)
8-stage shift and store bus register
PIN PORT ASSIGNMENT
No. PORT NAME
1 STROBE
2 DATA
3 CLOCK
4 Q1
5 Q2
6 Q3
7 Q4
8 VSS
9 QS
10 Q'S
11 Q8
12 Q7
13 Q6
14 Q5
15 OUTPUT ENABLE
16 VDD
IC94: CD4094B (AMP P.C.B.)
8-stage shift and store bus register
PIN PORT ASSIGNMENT
PORT NAME
No.
1 STROBE
2 DATA
3 CLOCK
4 Q1
5 Q2
6 Q3
7 Q4
8 VSS
9 QS
10 Q'S
11 Q8
12 Q7
13 Q6
14 Q5
15 OUTPUT ENABLE
16 VDD
2 D Q
SERIAL
CL 1
IN
CL
p n
CL
3
TR TR
CLOCK CL
TR
TR
1
STROBE TR
TR
LATCH
1
OUTPUT
ENABLE
15
3-STATE
1
p
V
DD
4
Q1
22
DESCRIPTION
STROBE INPUT CHIP ENABLE 1 FROM MICROPROCESSOR PIN No. 80
DATA INPUT DATA INPUT 1 FROM MICROPROCESSOR PIN No. 6
CLOCK INPUT CLOCK INPUT 1 FROM MICROPROCESSOR PIN No. 5
OUTPUT COMPONENT VIDEO SW_2
OUTPUT COMPONENT VIDEO SW_1
OUTPUT VIDEO MUTE_1
OUTPUT VIDEO MUTE_2
VSS
N.C.
N.C.
OUTPUT VIDEO SW_1
OUTPUT VIDEO SW_2
OUTPUT REC MUTE_1
OUTPUT REC MUTE_2
OUTPUT ENABLE
VDD
DESCRIPTION
STROBE INPUT CHIP ENABLE 2 FROM MICROPROCESSOR PIN No. 31
DATA INPUT DATA INPUT 2 FROM MICROPROCESSOR PIN No. 30
CLOCK INPUT CLOCK INPUT 2 FROM MICROPROCESSOR PIN No. 29
OUTPUT N.C.
OUTPUT FRONT SPEAKER ON
OUTPUT SURROUND MUTE
OUTPUT CENTER MUTE
VSS
N.C.
N.C.
OUTPUT PRE SUBWOOFER MUTE
OUTPUT HEADPHONE RELAY ON
OUTPUT SURROUND SPEAKER ON
OUTPUT CENTER SPEAKER ON
OUTPUT ENABLE
VDD
D Q
CL 2 CL
CL CL
p
STAGES
n 3-7
TR
LATCH
2
TR
3-
STATE
2
n
V SS
5 6 7 14 13 12
Q2 Q3 Q4 Q5 Q6 Q7
SHIFT REGISTER
SHIFT REGISTER
CL
p
SERIAL
OUT
D Q
10
Q'
n
S
8
CL
Q
CL
p
n
CL
SERIAL
OUT
11
Q
S
LATCH
TR
8
TR
V DD
3-
STATE
8
ALL INPUTS PROTECTED
BY CMOS
PROTECTION NETWORK
11
Q8
STROBE 1 16 VDD
DATA 2 15 OUTPUT ENABLE
CLOCK 3 14 Q5
Q1 4 13 Q6
Q2 5 12 Q7
Q3 6 11 Q8
Q4 7 10 Q'S
VSS 8 9 QS
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