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DR-E34BK
DR-E34LBK
Description of Major ICs
LC6514B-4245 (IC401) : TUNER CONTROLLER
1.
Terminal Layout
KEY IN2
1
KEY IN 1
KEY IN 3
3
KEY IN 0
"INT
2
voD
A BUS IN
4
HOLD
NC
5
Vp
2.
Key Matrix
DI
6
MUTE
cK
7
08
DO
8
07
ce
LC6514B-4245
0s
A BUS OUT
OS
TUNED
04
STEREO
03
NC
D2
NC
D1
$1
DO
$2
SB
$3
$7
$6
$5
Osc2
osc1
$4
RES
TEST
Vss
3.
Pin Functions
| i kevin2 [1 [KEY MATRIX INPUT
| {OSCLLATION INPUT
| 2 |xevws
[if
*
Ss
—Cts'"CSCSCSCSCCS 2B Tosca sO fOSCHLATION OUTPUT.
CS
13 fim
fi fPuttup(+svyy)
—"i;'"CSSC*dr ACS
PPL SeGMENTOUTPUT
Cd
14 [rousm [tfocssigvaLinpur
ss
CS
CFO
C—"—*'"S*s™Ss™S™SCSCSCSCSCSCidCS
Pe Nes od Sees
ee
eee
eerie oe
OT
OO
ee
re Cee
ee
Vio
<P
POATACINEUT =: a
ce
OT ge — PON
ER
ee
[7 |x
—ifolsystem cock ourpuT
sd
28 Oo
|
| FL GRID OUTPUT (KEY MATRIX OUTPUT) _|
PB o8. | 3. POMDATA- OUTPUT = =
ce
edt
=
Of
ee
ee
(Ofc
ett cuipenasee
CC (ts'"' dr OCR
CUfO fT
t—"—'"CSs—'—Cs'"'"'"'"'"'(Cz
[10 [aousour [o[pcssignatourpuT
CT
fs
Cf t—"—s—sSOSCSCSCSCSCSC'"'CSC'*dC
[11 [runco [i ["tuneo"signauinpur
B82
ef
—Ci'"'('"C;C;*S*SC*C*C*C*C*C
[12 [stereo [i "STEREO" SIGNALINPUT—— ss
CFO
—"—sSSSCSCSCSCSC"'CSCC#C*édéCd
pigoie.
spent
ee
RA ie
Op
Se
ee
Te
Oe
iss:
ss [ol ruseGmentourpuT——
Cid
He
CFO
™—~—CsSCSCSCC"C'"CSNCC(C''z*C
US
Ot,
ieee ok
me
ee a
MU
Oreo
ein une Lane, fon eel
fi7{ss
fof et—"CssCSSCC*d
8B wT
| FAL DISPLAY POWER SUPPLY
ri8ts —isfot—CsSCSCSC"'CSC~*~*
Btn
=
INPUTSIGNALFOR BACKUP
[19 [res S| 1 PRESET SIGNALINPUT
Cd
AO [von Ss] =P POWERSUPPLY(+5V)
[20 [rest 1 | PULL DOWN
At [kero [| t[KEY MATRIXINPUT
Bilis occ | PGND
es
ee
Fi Sees eee
apa cm
1-18
(No. 20162}
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