JVC DR-E34BK - Major IC Descriptions; LC6514 B-4245 (IC401): Tuner Controller; IC Terminal Layout, Key Matrix, and Pin Functions

DR-E34BK
DR-E34LBK
Description
of
Major ICs
IJ LC6514B-4245 (IC401): TUNER CONTROLLER
1.
Terminal Layout
Y.FY IN2 1
42 KEY IN 1
KE Y IN3
3 41
KEY IN 0
INT 2
ao
v oo
A □ us IN a
39 HOL D
NC
5
38 Vp
0 1
6 37
MUIE
CK
7
36
na
00 8
35 07
CE
9
LC65148-4245
34
06
A BUS O UT
10
33
OS
T UN ED
11
32 D4
StEn EO 12
31
DJ
NC 13
30
02
NC 14
29 0 1
SI
15
28 DO
S2 16
27
SS
SJ
17
26
S7
s•
18
25
S6
RES 19
24 55
1 ES r 20
23
OS C }.
V,s
21
22
OSCl
3. Pin Functions
Pin
Pin
No.
S ymbo l 1/0 function and Opera ti on
N o.
1 K fY IN 2 I KE Y M AT RI X INPUT
22
2
Kt Y IN 3
I
,,
23
3 IN f
I PUL L UP ( + SV)
24
4
Anus IN
I
DCS SIG NAL I NPU T
25
5 NC
-
26
6 01 I DATA INPU T 27
7
oc 0
SYSTEM CLOCK OU TPUT
28
8 DO 0
DATA OUT P UT 29
9 CE
I CHIP ENA BLE 30
10 A 0 US OUI 0 DCS SIGNAL OU TPU 1 31
11 IUN CD I "TUNED" S IGNAL INPUT 32
12
S IE RE O
I "ST EREO" SIG NAL INPUT
33
13 NC
- 34
14
NC
-
35
15 SI 0
FL SEGM ENT OU T PUT
36
16
52
0
,,
37
17
S3
0
,,
38
18
S4 0
,,
39
19
, ..
I RESET SIGN AL INPUT
40
20 IEST
I PULL DOWN
41
21
Vn
-
GND
42
1- 18 (No. 20 162)
2. Key Matrix
KEY
KE Y
K
EY KEY
IN 0
IN 1 IN 2
IN 3
DO MEMORY
AUTO
MEMORY
Dl FM AM
D2 UP DOWN
D3 1
2
3
4
D4
6 6 7
8
D5
9 10
+10
PRESET
SCAN
Symbol
1/0
Function and Opera tion
O5C1
I
OSCILLATION INPUT
o sa
0
OSCILLATION OUTPUT
SS 0 FL SEGMENT OUTPUT
S6
0
,,
' 57
0
,,
.SS 0
,,
DO 0
FL GRID O UT PUT (KEY M ATRIX OUTPUT)
01 0
,,,
02
0
,,
Dl 0
,,
1)4
0
,,
D~
0
,,
06
0
,,
07 0
<>
oa 0
,,
MUTE 0
VD
-
FL DISPLAY POWER SUPPLY
~IOLD
I INP UT S IGNAL FOR BACK UP
V DD PO W ER SUPPLY ( + 5V )
KEY IN 0 I KEY M A TRIX INP UT
~EY IN 1 I
,9
www.audiodna.sk