TX-NR801/E
IC BLOCK DIAGRAMS AND DESCRIPTIONS
Q7502 M66005-0001AFP(FL tube drive IC)
~
CS
SCK
SDATA
RESET
Xin
Xout
Vcc1
Vcc2
SERIAL
RECEIVE
CIRCUIT
DISPLAY
CODE RAM
(8 bits
16)
CODE/ COMMAND CONTR
OL
CIRCUIT
INDICATOR
CONTROL
REGISTER
CLOCK
GENERATOR
CIRCUIT
DISPLAY
CONTROLLER
RAM
write
code
selector
CGROM
(35 bits 160)
CGRAM
(35 bits 16)
SEGMENT OUTPUT CIRCUIT
DIGIT
OUTPUT
CIRCUIT
SEG36
SEG28
SEG27
SEG01
P1
P0
Vss
Vp
DECODER
DECODER
~~
DIG16/SEG40
DIG13/SEG37
~
~
DIG12
DIG01
~
1
12
61
64
22
20
21
13
16
15
14
19
60
59
33
32
~
~
31
23
18
17
SEGMENT/DIGIT SELECT/OUTPUT CIRCUIT
Q2752/Q2753 MM1093(4fsc clock generator)
4fsc
VCO
DIVIDER
(1/4)
SYNC
SEP
BGP
GEN
APC2
1st
BPA
2nd
BPA
fsc
VCXO
ACC
DET
9
10
11
12
13
14
15
16
OSCILLATOR R
Vcc1
Vcc2
OSCILLATOR C
APC2 FILTER
4fsc OUTPUT
BURST GATE FILTER
COMPOSITE INPUT
8
7
6
5
4
3
2
1
NC
fsc OUTPUT
GND2
GND1
X'TAL
APC 1 FILTER
ACC FILTER
CHROMA INPUT
APC1
52