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RX-P840
1.5 IC INFORMATION
@ The information shown in the list is basic information and may not correspond exactly to that shown in the
schematic diagrams.
Wi PD4523A
(IC 1901
: DISPLAY ASSY)
@ System Control CPU
@ Pin Assignment (Top View)
DECK CLK
ww
DECK DATA
aa
rT
DECK LE
POWER ON/OFF
SB CLK
SB
OATA
RESET
@U2040 CLK
°
BUz2040 DATA
«gto:
9162, 9164 STB
SPECTR 1M.
ANALYZER
1
SPE
TRUM
ANALYZER
2
Gos Gos
Gos
TUNE/STEREO
SPECTRUM
ANALYZER
4 SPECTRUM
ANALYZER
S
«
w N
i
x
z
<
4
o o
a
w
@ Pin Function
1
FIPO
2 | FIPS
8
Vop
9 | SCKO
10 | SOO
FIP6
Vop
DECK
CLK
DECK
DATA
N_ | DECK DATA (M66320)
Go2 oor por P02 Pos poe vLoao
P05
a] al
° &
s
o
F
mets
6G
N_ | DECK CLK (M66320)
11 | P25
{DECK LE}
C | DECK LE (M66320)
POWER
12 | P24
ON/OFF
POWER ON/OFF
13 | P23
| SBCLK
System bus CLK
14 | P22
|SB pata| C |
8sse
p
89380
shins
REESE
iNTPO/PO0
©
eisac
258s¢
aeaca
P31
©
P33 ©
P32 ©
Pt1/KO04
Ps
0
1 2-K00S
PIE/KOOS
b14/K007
P15/KO08
P16
B17
KIO
Kit
Kt 2
KL 3
wes
PLL. 9162. 9364 CLK
1 6 2 , 9164
DATA
PLL. 9462,
o
esse
$00/P26
©
SCK0/®27
©
PLL CE
GND
PULSE!
P20
©
PULSE?
P21
0
FWO
LEO
REV LEO
P22. 0
REC
LED
P23
0
al Tate
P24 ©
AN10/P10
ANI7/297
avoo
©
avss
oO
AVREF
©
i} a
oe]
° °
INTPOsPO0
INTP3 P03
FL grid output
BACKUP +5V
System bus DATA
17
18
19
20
21
23
@ Block Diagram
Tobit
TIMER?
[erat coor KS)
Beit
TIMERS
EVENT
COUNTER)
Boies
TIMER,
Buzzer | CLOCK
ourpuT
°
P36
P35
RESET
BU2040
P74
CLK
BU2040
P73 | DaTA
AVss
-
— j Connected to Vss.
A/D | Spectrum analyzer input] (100Hz)
P17
P16
ANI5
=
ANI4
ANI3
ANI2
ANI
PROGRAM COUNTER
{
Rom
ROGRAM MEMORY
Po.
N
N
D
A/D | Spectrum analyzer input3 (1kH)
A/D | Spectrum analyzer input4 (3.3kHz)
D
:
=)
CD
REQIENA
C | System bus CD REQ/ENA
ffm | — [elmewe
RESET
PORTO
Poo-PO4
U
poets
P10~P17
GENERAL
REG
P20-P27
2 g 5 a
vecooe | | ~~ ~~
>
AND
CONTROL
ports >eso-P37
Cyeon]
' ede
re
a
rorrel ees oes
\ *
/
oe
Gade
posts] —erso-es er
crock
{CLOCK GENERATOR cranny ay| | 1
oon
ae
ry
ourPUT
Jorvioer
CONTROL
CONTRO.
1 sup
| warn
7
=
cae
eM
e a
A/XTUXTZ
XY
KZ
1]
RESET
VOO vss 1¢
Reset input
BU2040 CLK
BU2040 DATA
Spectrum analyzer input2 (330Hz)
A/D | Spectrum analyzer input5 (10kHz)
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