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Panasonic CQ-RD55LEN Service Manual Seite 34

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CQ-RD55LEN
|
OPERATION OF LS!I/BEDIENUNG DES LSI
m 1C605, YEAMHD44780A
m IC601, YEAM17006519
Sorel
aashiininctnaie
nc MAR twinetmntenn hommes
pevel_ron
[meen [eo POP BF] fre] rm [oom
[eof oT
ee Spee ee
B....
[eK
[oK sont mot
Sit | 0 | — | [oe [nc | non como
—-(|-|— | —_
RDS CLK
(6~22|seqi7~1
| Not used
|
|
2 [& | sx cna not
«tsi s0{— | [a [wn [mow tc coma
[ol] o |. |
ae Ce
23 [ano | Ground
I-10 |
[a [ROS [ADS signal int
+11 s0|— | | «0 [ucoe |tco'onece
|o|o |_|
[ee lose: Moma nee
e
a [st | Swooo signet ron
«itt faz | — | [a1 fate | across loin nao
| ol] o | t_
———
| 25 |osc2 | Oscillator input
|
to
ms [- [No wes
SS™~=~i dT
|
emt ome | aM oes
CT
ft |
Te [so | BS dorcin
Sst | fos | — |
RAM ecrose, dala icp dom [vo[oz2|.|
— _ — _
|
[26 |vi_ | LCD drive voltage = ss | — | 3.9
are
Cor
ee
2 ee
¥
ease vara
2V/DIV, 2mS/DIV
2VIDIV, 0.5mS/DIV
_—_—1V/DIV, 0.1S/DIV
28 [va
| LOD drive voltage
SCOT + Co ||
[9 avs pat] ADS daa ino
«it 1ite27|—| | sas
|p changer sonal ca
|| 0 | —_|
a.
oe ee
0 [- [nous
SSSidT | 0 | — | [se [cnocer| co cramer ono
fo] «a | t_
co {V4
ae ae oe
ud
Tar [apsox [Ros cox not
+1125 | — | |_s5 [cuascx| co changer sori cook | o|«s |i | |= FMOSC
xO
XI
| 30 [vs | LCD drive voltage
| — | 06
Vie [vp | +5v power owpy
[| —| s2|— | |[_s7 |ep.sns | op changer paratol connection | 1 | o | 1 _
oe
ae
ee
ee
M5 [am Sc | AM toca! oscitate soma [1115 |orr| [ss lewoma| cp che
ss} of] o | 1 |
eae Foe
aE Ea Ea
Tas [rmosc | FM local oxcitato sora | 1 [1.9 [orr| | so |D.SEEK | Direct cook mot
| 1 | o | He
Sadi
Ta7_ [ono | cree
[=[o [=| [eo [race [ram coer
tO | 0 | He
.36 [rs | LCD conot signet
| t | 45
a. 19|NC | Non conmocion
—-[-|—|-—|
[lan
[aus
|
(-|ol]-|
,
oo
| 37 [Aw | tcp data write
Tt
| 08
20 [E00 | Pu ero
ss | | 1.5 | oFF| | 62 |RAMOE | RAM ouput enable
== | O| 52] t | 1V/DIV,0.1nS/DIV
2V/DIV,0.2uS/DIV
— 2V/DIV, 0.2uS/DIV
3s le
[tcp chip enable
Tt
st 0
a1 [MUTE | Mue om
== | o| 52] t | | 63 |RAMWE | RAM wiite orale =|
O | 5.2 | OL
g9~46| DBo~7 | LCD data bus
Ss—idtsitsd' <a
22 [ssc | ssc cow
*+L oto itt [evo
| +sv power spy
[-| 52 | —_
ou
=
ga (ee. talons come
Or
| es ae teenie ee
| oe
DB2/AD2/KS2
47~53|COM1~7|
LCD common
|
| 2.8 |
[24 [MONO | Meno receive coma
| 0 | 0 | t | | 66 |T.LOAD | Tape loading dowcion | 1 | oa | —_
4~62| CoMe~16| Not used
|
Tas [ur | puter conv
| ole:|H | [67 [MS | TPS no sound detection [1 | a7 | — |
:
ps eo) seasases| Sooner Gund oa
cor |
26 [at | AM power coma
+t olter| 4 | [es lem | rrvnew coin
[1 | o | — |
:
Tar [ew [FM power como
+i oi16| | | 62 [tare | Tepe power conrad
| 0| 2 | —
lene Nenseonecen
T= |= [=| [Go [nc [non conection
«dt - | — | — |
29 [cHNG ce cD changer cE
—-«t 1 | o | —| [71 [nc | Non comocion
_—-|—| — | —_
30 [von | +5v power owpy
-|—|[s2|— | [ze [aw |1co omer rea
[ol] os | —_
OVIDIV, mSyDIV
Tar [ce | acc tevet dorctn
[1 [40 | — | fre~velkis~o | Key eum
«iL 1 i| oo | — |
:
a2 [AEM OUT Non comecion
+t of4e|t | [7 [nc | Non comodion
_|—|— | 1
aa [ono [con
—~'|-i|oi|—4| (| ze [wuree [mmomt
[ol o fut
4 [x0 | Crate oni
———«—| 28 |— | [79 Jenr.e | auto sina change
| o|o|t_
ee
Crystal esinr
|
—|o9 | — | [eo [owr.a | audio signal change
fo} o |e | f————————
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2V/DIV, 0.5mS/DIV
KSO
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LSI
KI1
KI2
KI3
> (
|
e
YEAM17006519
KS2
J 6
:
I 4
i
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sO
DG
DG
ae ae ance' : 7
:
LCD1 YEXDCM1025
2V/DIV, 0.5mS/DIV
KS3
:
KIi
= KI2
-33-

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