Panasonic RX-DS45 Service Manual page 13

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
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@ 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
aie 8 270K 7 =" ;
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Hie 8 | ibe] kee? agit aiichasa
x
3s $ ; oat) | i
°sT 8s kI80 r) Q2 - t
<o.7v>
t
eg oe
Ke ¢3 es 2SC3313BTA
Vi ser a3 43sP 2s FM IF AMP
yz, ol * T8s ae
TELESCOPIC ic ret mt alee
3 TA8I32F
ANTENNA 2 fa
FM /AM IF AMP,DET
SCH
n
& AM OSC, MIX aS O—O
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i (8.3v1 |] (4.9V
Be Sa
O-O-® = 32 7
a
i i a-4
= _
2° 33 Re
_&
Ril 33 -8
ob eo
T 2
zo og Ts
ey = a RIG cis
20. RS a 28 22 AA
ae aE
3.3K 100K co Z 12 iES3 een
a | es ego "> a3
ou ert
oF
3§ $ oie
i) 2SCIG74LTA
&
x 6 1 K2.2P 93 BUFFER AMP (FMOSC) i
D4 4
es RVDKVI23578 Cry 37 com>
_—_—— 1 1 ? ot, i2
<5.N> Qy (St: Med ve
4 2 4s
2SAIZSOORTA (S.2v) .2v) | 3 ir) inx¥eot,! <ov> QI3<o7v>
LW/MW SELECT
@, [2. 3!
a | zos-7'2
As (ov) i0.7v)
oot
ST |
[eek gon
Pisciw
; i ! ; SF
,
ee:
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BSF es
8x > Q12 ¢s.1v> it ! /
«2
} (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.
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