Onkyo HT-R330, Руководство по обслуживанию

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IC BLOCK DIAGRAM AND TERMINAL DESCRIPTIONS-18
Q802: M66005FP (FL tube driver)
BLOCK DIAGRAM
TERMINAL DESCRIPTION
TX-SR303/303E
These pins are used to connect to digit pins of VFD.
RESET Reset input This pin is used to initialize the internal state of the M66004.
CS Chip select input
"L" : Communication with the MCU is possible.
"H" : Any instruction from the MCU is neglected.
SCK Shift clock input At the rising edge from "L" to "H", input data is shifted.
SDATA Serial data input Character code or command data to display is input from MSB.
XIN,
XOUT Clock input
Clock output This pin is used to connect a resister and a capacitor externally to
set oscillation frequency.
DIG00 ~
DIG15 Digit output
SEG00 ~
SEG39 Segment output
P0, P1 Output port (static operation)
VSS GND
VP Negative power supply for VFD drive.
VCC1
VCC2
Positive power supply for internal logic.
Positive power supply for high-pressure-resistant output port.
SYMBOL PIN NAME DESCRIPTION PIN NO.
13
14
15
16
21,
20
1~12
61~64
23~31
33~59
17, 18
19
60
22
32
These pins are used to connect to segment pins of VFD.
CGROM
(35bit x 160)
CGRAM
(35bit x 16)
code
write
data
dot data
write
code
select
DIG12/
SEG36
DIG13/
SEG37
DIG14/
SEG38
DIG15/
SEG39
SEG00
SEG26
SEG27
SEG35
12
DIG00
DIG11
scan pulse
CS
SCK
SDATA
XIN
XOUT
RESET
2
P0
P1
Vcc1
Vcc2
Vss
Vp
Code/
command
control
circuit
Bank 1 : 8bit x 16
Bank 2 : 8bit x 64
Segment
output
circuit
Segment/
Digit
select/
output
circuit
SEG34
Clock
generator
timing
clock
Display
controller
Serial
receive
circuit
Display code RAM
Digit
output
circuit
1
61
62
63
64
23
59
24
31
33
14
15
16
21
20
13
32
22
60
19
18
17