Panasonic RX-DS45

8
Procedure
1—>2—23
eRelease 2 ribs in the direction of arrows.
Procedure
12-22-25
m CD COVER ASSEMBLY
$
C4) 7) ®
Removal
of
the
Cassette
Holder
a
yor
ss
Procedure
1—2—22-—23
Removal of the Cassette Eject Lever
| RX-DS45 RX-DS45
| Removal of the Woofer Speaker pene | Removal of the Tweeter Speaker ,
Removal of the Cassette Eject Button
Cassette eject button
Release 4 claws in the direction of arrows @ and then remove
the cassette eject button in the direction of arrow @.
Release 2 claws in the direction of arrows @ and then remove the cassette eject lever in the direction of arrow ©.
m@ OPERATION PANEL COVER
ASSEMBLY
-13-
@ CASSETTE HOLDER
ASSEMBLY
m@ SCHEMATIC DIAGRAM
eTUNER CIRCUIT (Parts list on pages 57~63)
TUNER CIRCUIT
o's
RVTOTCI14TST
MUTING
a
«
920
RVTDTAI43XST
SWITCHING
o
ict Hi
RVITA7358FT
FM FRONT END crs
S ° itis
© RB ro
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t
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Ke ¢3 es 2SC3313BTA
Vi ser a3 43sP 2s FM IF AMP
yz, ol * T8s ae
TELESCOPIC ic ret mt alee
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ANTENNA
2
fa
FM
/AM
IF
AMP,DET
SCH
n
&
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OSC,
MIX
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a
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=
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33
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33
-8
ob
eo
T
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ey = a RIG cis
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RS
a
28
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ae
aE
3.3K 100K co Z 12 iES3 een
a | es ego "> a3
ou ert
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2SCIG74LTA
&
x 6 1 K2.2P 93 BUFFER AMP (FMOSC) i
D4 4
es RVDKVI23578 Cry 37 com>
_—_—— 1 1
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ot,
i2
<5.N>
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(St:
Med
ve
4
2
4s
2SAIZSOORTA (S.2v) .2v) | 3 ir) inx¥eot,! <ov> QI3<o7v>
LW/MW
SELECT
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3!
a
|
zos-7'2
As
(ov)
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oot
ST
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[eek
gon
Pisciw
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,
ee:
!
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BSF
es
8x > Q12 ¢s.1v> it ! /
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}
(5.2V)
i
ny
oe
4
ane
é e? 7 Seas (4.4V)] <O.1v R55,
28 x L) "1 Bo I ° = (ova (Houne
z <9.2v> L5-2 we ge : etiory iw
(g2v) 2S oo
deal =
C69 M3300P a
oo
23
R21
Q7,8
a=
:
<
5.6K
2SC33IIRTA
2
z
5
FM/LW/MW
28
<3.8V>
R23
LOOP
FILTER
z
a.9vi =
Q7
a9
,10
2SC331IRTA
DC- DC CONVERTER
Notes:
DC voitage measurements are taken with electronics voltmeter.
The negative terminal of the battery provides negative meter connection point.
(___)...MW/LW < >...FM
eThis schematic diagram may be modified at any time with the developmen of new technology.
-14-