Sanyo DC-D5 - Page 36

.-. .
IC BLOCK DIAGRAM (FRONT SECTION)
IC251 pPD75306GF-257-3B9 (Tuner & LCD Driving Micro Processor)
IPIN
No. I SIGNALNAME I PORT NAME I
DESCRIPTION
I 1/0 I CONNECT I
I
I t
1
SEG13
S12
I Seqment of Liquid Crystal Display
o LCD
2
SEG14
S13
I Seqment of Liquid Crystal Display
I
o
LCD
3
“SEG15
S14
Seqment of Liquid Crystal Display o
LCD
4
SEG16
S15 Seqment of Liquid Cry$tal Display o LCD
5
SEG17
S16
Segment of Liquir! Crystal Display o
LCD
L
10 NC
S21
Not Used (Open)
OPEN
11 NC S22 Not Used (Open)
OPEN
12 NC S23 Not Used (Open)
OPEN
13 NC S24/BPO
Not Used (Open)
OPEN
14 NC
S25/BPl
Not Used (Open)
OPEN
15 NC S26/BP2 Not Used (Open)
OPEN
16 NC S27/BP3 Not Used (Open)
OPEN
17 AUTO
S28/BP4
Auto Tuning Signal
ACTIVE : HIGH LEVEL o
OPEN
Not Used (Open) o
OPEN
ten o
OPEN
~en) o
OPEN
Liquid Crystal Display o
LCD
ystal Oisplay o
LCD
18 NC S29/BP5
19 NC S30/BP6 I Not Used (OE
20 NC
S31 /BP7 I Not Used (OE
21
COM O
COMO
Common of L
22 COM 1 COM1
Common of Liquid Cry
23
COM 2
COM2 Common of Liquid Crystal Display
24
COM 3
COM3
Common of Liquid Crystal Display
25 [ BIAS
I BIAS I Bias of Liquid Crystal Display
E
26 VLCO
27 VLC1
28 VLC2
29
STEP(Not Used)
30 ST (Not Used)
31
SD Not Used
I
32 I NU
Es
33
Vss
34 POWER
35 MUTE
36 NC
37 NC
38 NU
39
SCK
v,~“
V,c,
VI~,
P40
P41
P42 .
P43
V5<
P50
P51
P52
P53
Poo / INT4
PO1/SCK
P02/SO/SBO
o
0
.,” Lty>Lcl, “I>plczy
I
1
,,
tid Crvctal flisnlav R I
Power Supply for Drive of Liquid Crystal Displa
I
I
VI ~~
pOVVerSUPply for Drive of
LiqU;~ ~..,..-I h:.~t=.~
0
I
Power Supply for Drive of Liqu.- ~.,..-. -.-F.-J
AM Step Selection
9kHz(VDD)fl OkHz (VSS)
I
TUNE”R (V<$)
STEREO Signal
ACTIVE : LOW LEVEL I
TUNE R(V~~)
STATION DETECTION Siqnal
ACTIVE : LOW LEVEL I
TUNE R(V<<)
.
Not Used (Ground)
I
VS5
Ground
GROUND
Tuner Power Siqnal
ACTIVE : LOW LEVEL o
TUNER
T(lner Muto Sirinal ACTIVE :
LOW LEVEL o TUNER
E=
40 NU
41 SI
42 NU
43 NU
44 NU
45 NU
46 NC
a7 M r-
Ien
I
0
I
OPEN
Not Used (Open)
o
I
OPEN
Not Used (OpI
Not Used (Ground)
l—
1-
1
v~~
Serial Clock Signal from CD Micro Processor
1
CD pCON
Not Used (Ground)
I
I
v<,
1
I Po3~i/sBl
g-serial Dataiiij from CD Micro Processor
I
CD ~CON
I
PIO/lNTO
P1l/lNTl
P12/lNT2
P13/Tlo
P20 / PTIOO
P>l
Not Used (Ground)
I
V<5
Not Used (Ground)
I
V<$
Not Used (Ground)
[
V5<
Not Used (Ground) _
I
V55
Select Siqnal for AM Signal Type Wide (HIGH) /Narrow (LOW) I O
OPEN
o I OPEN
1
,
-----
ID Micro Processor
o
j
CD ~CON
1
-. lw.-
!
,GG, ,>L
49
BUSY
P23 / BUZ
Serial Bus Busy Siqnal Out to C
50 so
P30 / LCDCL
Initial (Destination) Set for User = Country
51 S1
P31 /SYNC Initial (Destination) Set for User = Country
52 S2
P32
Initial (Destination) Set for User
53
FM MUTE P33
Select Signal for FM Auto Mute
SE1
or
—
or
—
Ground)
I
I
I
V5<
Ground)
I OPEN
I
r = Country (Open or Ground)
I
v<<
T (Open)/ NOT (V~$)
I
v<<
54
VDD
Vnn
Power Supply + 5V
+ 5V
55 NU
XT 1 Not Used (Ground) OSC X’tal Terminal for Sub System Clock
-
V,f
I
56 NC XT2
Not Used (Open)
OSC X’tal Terminal for Sub System Clock
-
OPEN
57 NC
NC Non Connection
OPEN
58 xl
xl X’tal In. Main System Clock (4.194304 MHz)
I
X’TAL
Xo
X’tal Oufl=Main System Clock (4.1 94304 MHz)
o
X’TAL ;
ON (Open) I OFF (V$$)
I
V$s
I 59 I
x2
}
60
SEEK (Not Used)
P60 / KRO
Select Signal for Auto Tuning Mode
61 AM IF (Not Used)
P61 /KR1
Select Signal for AM IF
62 NX ADJ (Not Used) P62/KR2 Select Signal for NX Adj. Mode
63
MONO
P63 /KR3
Compulsion Monaural
64 DO
P701KR4
Data Siqnal from LM7001
SET (Open) I NOT (V<C,)
i
v<<
NOR (Open) IADJ (V~$)
1
OPEN
ACTIVE : HIGH LEVEL
o
TUNER
1-
0
TUNER
I
65 I CL
J P71/KR5 ~Data Signal from LM7001
o
I
TUNER
‘..
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