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A
B
C
D
E
F
G
H
KV-25DXR
RM-727/APM-X3U
2.
SCHEMATIC DIAGRAM
1
r~,r
I
11,
L _
_JL
01
S117
~
S125
--09
RC
KEY IN I
KEY IN 2
KEY IN 3
KEY IN 4
KEY IN 5
KEY IN
6
KEY IN 7
KEY IN
8
DI
02
D3
04
05
06,
07
08
09
DKl
2
3
DI-D10 MC911
SI
52
53
54
S5
56
f-0""'9
,--0""'9
~
-07
-o""'q
,-07
59
510
512
f-0? f--09
~
~i
S19
S20
517
S18
S21
522
f--07 h>7 -07 f--09
~
'""°9
_:__J
S25
S26
02
f-09
-09
538
~
S43
S46
-09
f-09
$118
S49
S50
S51
S52
S53
f--09
~ ~
-09 -09
~
S59
9
I
-
J
4
57
S8
f--07 -07
S23
S24
h>9 f-09
555
h>9
03
5
6
ICI CX23040
REMOTE
CONTROL
ENCODER
OVIOVI•
0.12V(OV}A~ Kl
1
OV!OVJA~ Kl
2
oviov1• 3 )KI 3
OV(OVJ•? Kl 4
OV!OVI•~ Kl 5
OV(OVl•••J()KIG
OV(OVl._:
6
Kl7
,,.,.,P
OVIOVI 5 )Kl 8
?ii~l~9
KOi
r'
fi!~l~O
K02
0.14V
(3.ZV) 12 K04
0.3V
(3.ZVl 13 KOS
O.J4V
{3.ZV! 15 KOG
0.14V
IC I
DI I SE303AY
TRANSMIT INOICAlOR
_ /\
/\
/\
QI 2SCl652
V V V
INDICATOR
DRIVE
37
_GVp-p( 4 BOKHzl
VOO( a•2Vl3 2VI
,(~OIi
R2 014V
~
p'
IR 18
11l~1!0:/?
0
~
3Vl25VI
2NO 6)"0.2v1ov1 ~"~.06VIOVI
: 120
,#16WI
Cll
i>----
1
~,_j
CL2
8>--srR•
J}'
li'tJ;;i;:4eo~tfl
I
MO
1 3
... 3.IV !3.2Vl
1,1)2(~
MO~
l
•OVIOV)
M04(~
MD519';..>,ovmv1
vss~
"
;~:::
,_
_____
_.
~t
05
04
DI
09
08
07
06
r
7
r-~~t~r.-~ft~it~it
~r-t~
I
I I
I I
11'
JI
I
I
~I I
II
,,
I
L_
JL::-
JL_
JL'.::JL_
JL_
JL_
J
L _
_J
~
03
I
©J
S205
5203
S204
S202
5201
S208
5107
f-09
~
-09 -09 ""9 f--09 f-o°"7
S210
S209
>-09 r09
S221
5219
S220
5218
5224
5223
f-c,7
~
-09 --09
~
f--09
S227
5226
S225
S231
f--09
~
-0""'9 f--09
5237
S235
S236
S234
S240
S239
f-o9 -09 --07 --07 f-o9 f-o9
S245
S242
S241
f-09
-0""'9 --0""'9
5253
S251
S252
S250
S249
S256
S2S5
f-o9 --09 --09 --09 e09 f--09 f--09
S260
S257
-07
~
KEY MATRIX
KEY OUT l
KEY OUT 2
KEY OUT 3
KEY OUT 4
SI
CHANNAL I
S9
CHANNAL9 S19 VOWMEftl
S25 PICTURE I+!
S2 CHANNAL 2 SIO CHANNAL 0 S20 VOLUME
1-1
526 PICTURE
1-1
S3
CHANNAL 3
517 CHANNAL(+}
S4 CHANNAL 4 Sl2
ENTER
Sl8 CHANNALJ-1
S5 Q-IANNAL 5
S21 MUTING
S6 CHANNAL 6
S22
POWER
S7 CHANNAL 7
S23
RESET
S8 O!ANNAL 8
S24
MTS
KEY OUT I
KEY OUT 2
KEY OUT 3
KEY OUT 4
S206
6
S222
T
S207
7
5223
y
S23l
BACK
S208
8
S224
u
S201
I
S209
9
S225
1
S202
2
S210
0
5218
0
5226
0
S204
4
S220
E
S203
3
5219
w
5227
p
S205
5
S221
R
S206
f-09
S222
h>9
S238
f--07
S254
f--09
KEY OUT 5
KEY OUT 6
S43 ANT/AUX
538 TV/VIDEO S46
RGB
KEY OUT S
KEY OUT 6
S238
F
S239
H
S240
J
S241
K
5234
A
S242
L
S236
D
5235
s
S237
F
5245
$
Q2
DTCl44ES
KEY OUT 7
S49
GO
S50
l+I
S51
1-1
S52
-
S53
-
S118 LEVELI-IJLI
S55
SLEEP
KEY OUT 7
Sll7 LEVRftllRI
Sl~ LEVELI-IILI
S254
N
S255
M
S256
'
5249
z
S250
X
5252
V
S251
C
S253
B
KEY OUT 8
S59
DISPLAY
KEY OUT B
S125
sru:cr
S257
■
S260
SPACE
Q3
DTA144ES
•
Voltages
and waveform
are for when
[ill
button
is
pressed.
•
Voltages in (
) are taken with button
not pressed.
-115-
7
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