Clarion PU-9907A - Page 6

MEXPLANATION OF IC's:
Note: Only new microcomputers are described here.
Ml
.PD75518GF-192-3B9
052-3119-00
System
Controller
uPD75518GF-202-3
B9
052-3120-00
(Mastar
Micro
Computer)
NOTE) The 052-3119-00 and the 052-3120 are master micro
computers of SF and DSP versions respectively.
Those
terminals
provided
with
*
in
the
terminal
description
below
are
subject
to
NC
(unused)
in
the
02-3120-00.
For
other
terminals,
each
stated
function applies to both.
Outwardform
80 pin plastic QFP
Terminal Description
a
GFX/TOM tape mechanism selecting terminal.
L:GFX,H:TOM
A/D conversion reference voltage.
Power supply voltage terminal.
Pin No. Symbol
TOM/GFX
2
P
<
»°]
m
Bay
KSS
Key line selection, No.5
<
Oo Oo
LCD
LIGHT
LCD
display
light
terminal.
Lit
up
with
"H”.
Selection of E-VOL for woofer.
“H° for master microcomputer operation.
Voice source mute.
Voice source selection.
7 WF CS
>
<
c
4
m
AUX MON
10 ASEL1
11 ASEL2
Power supply control for peripheral IC.
Indication driver, C-bus buffer, rotary controller, tape
mode SW input, A/C CONT and $0 on.
12 MAIN 5V
Power supply control for peripheral IC.
Indicating LCD, electronic volume, voice source, power
supply for tape, audio and radio, and antenna.
13 POWER
AMP ON Standby release control for power amplifier.
cS
DISP
C$1
Selection
of
indication
driver
1.
|
16
|
DISP
CS2
Selection
of
indication
driver
2.
17
S|
18
$0
Data
transfer
I/O,
indication
driver
in
use.
19
SCLK
KS4
Key
line,
selection
of
No.4.
21
KI7
§
j
key
scan
input
terminal.
28
KIO
29
K$3
j
j
key
scan
signal
output
terminal.
32
KSO
Gy
z
Oo
GNO terminal.
Electronic volume selection.
E2 PROM selection.
34* lyorcs
E2PROM CS
We
Qo
°
-
K
Used
for
data
output,
clock
input,
electronic
volume,
pe
£2
PROM,
and
S-PIC.
38
D-O!
39 $-PCS
Series/parallel IC selection.
VOL-A
Rot rinput.
VOL-B Otary encoder inp
MECH
POWER
Cassette power supply control, main motor control,
power motor and photo-reflector.
b
ND
PU-9907A
Support for tuner microcomputer 5JB functions, and
control for C-bus communication.
[roe [ as
ee
[eens [ef
43 S81 ADR
44 SBI CMD
ee ee
[as foveen—[ |asnervaremaienomon
ae fina [Tebaamerame
Ae CN
Detection of Vdd power ON. “L” for power supply
fe fcc |
drop.
oe a
50 Si
51 $O
52 SCLK
| 53 faccon | 1 | Accessory power supply detection. “H” for ACC ON.
ps fee femwermn
55 XTi
56 XT2
Pa fee [= [eer
x1
s Bt
59 x2
rae psc [ forenoon
Se a
Ce
" prone |e
MECH MUTE jo
66
67
Data input and output and clock used for C-bus
communication.
System sub clock terminal. -
System clock terminal (4.19 MHz) .
Preamplifier signal changeover according to tape
running direction.
“H” FF/Rew, “L”: FWD.
Mute and preamprefier control during tape running.
"H": FF/Rew condition, “LL”: Others.
Metal tape changeover output. "H” for tape running
condition.
Tape motor drive control to control operational
condition of GFX mechanism.
za M MOTER ca Tape reel motor control, “H” for motor ON.
69
MODE SW3
70 MODE SW2
71 MODE SE1
MODE STATUS Sw3
EJECT END
Loading/ejecting
STOP
3
7)
>
a)
FF PLAY direction FF
-GAP-
REW PLAY direction FF
-GAP-
FF PLAY direction PLY
-GAP-
REW PLAY direction PLY
Pack detection Input, "H”: Pack is present - From
72 TAPE IN
parc loading to pack IN.
73 AVss ao A/D convertor reference GND.
Music detection input, “L”: Presence level, “H”:
Absence level.
.
aS MTLIN
Tape metal detection. “L”: Normal, “H*: Metal.