JVC MX-GT98V Service Manual page 37

Pin function (2/2)
Symbol
Pin No.
51~63 G13~G1
64~87 P1~P24
88 SLCCE
89 AUX LED
90 DOORCL
91 DOOR OPEN
92 CDLED
93 TAPE LED
94 TU LED
95 SMUTE
96 BTU+
97 POUT
98 TUCE
99 VC3RESET
100 VPP
BU4094BCF (IC303) : Serial to parallel port extension
1.Pin layout
1
STROBE
16
Vdd
2
DATA
15
OUTPUT ENABLE
3
CLOCK
14
Q5
4
Q1
13
Q6
5
Q2
12
Q7
6
Q3
11
Q8
7
Q4
10
Q's
8
Vss
9
Qs
I/O
O FL grid control signal output
O FL segment control signal output
O SLC Chip enable signal output to IC303,IC304
O LED Control signal output (AUX)
O Rolling panel motor control signal output
O Rolling panel motor control signal output
O LED Control signal output (CD)
O LED Control signal output (TAPE)
O LED Control signal output (TUNER)
O System mute control signal output
O Tuner supply control
O Power ON/OFF
O TUNER Chip enable signal output
O VC3 reset output
- Power supply
2.Block diagram
2
DATA
3
CLOCK
1
STROBE
15
OUTPUT
ENABLE
Q1
MX-GT98V/MX-GT95V/MX-GT88V
MX-GT85V/MX-G78V/MX-G75V
Function
8-STAGE
SHIFT REGISTER
8-BIT
LATHES
3-STATE
OUTPUTS
Q8
PARALLEL OUTPUT
10
Q's
SERIAL
9
OUTPUT
Qs
1-37