Alpine 7390M - Schematic Diagrams; Schematic Diagram (1;3)

Schematic Diagram (1/3)
1¢501
IC
ict
1c5
Ic6
Qi
Q2
Q3
04
Q201,0203
TRANSISTOR
Q202,0204
as
920
ant
ai2
ai4
a2}
gist
LO/DX SWITCH
ANTENNA
RECEPTACLE AGiewe MAIN P.C. BOARD
od
hateron
(~~~
Gy
DrcisakU/
02.03
eee
—
fe
1
2S0661UX2
a
tf
C301ZZR217 | R21¢
DOLBY B/C
[1 | SWITCH /
mae : in
Q201 0.087 oF
DTC124EU
18K
ne | :
©
R12 27C9 1000P
FMOSC ()
MW/LW IF ©) |__|
94468F 04
1 1C1
pee east coal
C10 R13 AN202U
FM /MW/LW PLL
MW
LWose
0
SYNTHESIZER
|
Mw/LW
+8
CON
TROIS
a
ae
| MW/LW AF
S.METER
Li
—— Z rtie 4
| | BE
aaa
TAPE /F M/MW |o
/LW SWITCH
R208
R210
olalelel ake)
302] [R22
47/50 3-3K L22k
aa
|
Tl
.
|
=
R25 100K R509
cleeebanmeend
a
ina R24 100K 47K
2s aaa
pe 2 eee ae
CMD ;
DOLBY-B DE POWER }—————
$-BUZF-—y
sumueecmeamme
ANT
Signal
Line
we
ms
oem
am
MW/LW
Signal
Line
wemerconnerascccemaee RQ
—
Ch
Signal
Line
ven
ves
oom
wwe
|
—ch
Signal
Line
[8 |..c. ] & f MODE |
Ov/4.75vV| 7V/0V | OV |OXSEEK/LOCAL SEEK
R61 S6K
C49 10/16
oeav
|
37ev
[
oiv
[Od
Se
Re
ee
ee
[at
[#2
jowowov[
Pres a acecal
Q2
Q3 < VOLTAGE MEASURING CONDITIONS >
1, POWER SUPPLY : DC 14V
2,
MEASURING
TOOL
:
DIGITAL
MULTI
TO SCHEMATIC 3, MEASURING POINT REFERENCE : E
DIAGRAM
(2/3)
4,
MEASURING
CONDITIONS
:
FM
98
AM 1C
TAPE BL
fas /48v/ov |ov/5.5V[ OV |
roio{ 8.5v_ | 13.7vV | 7.9V_|
fait [78v/85v| 85v/0V! 8.6V_|FM/(MW/LW) |
[oi2 [aSv/78Vv\1.4v/85V| 8.6V | FM/ (MW/LW) |
rails; g2v | i34v | 8év [|
raig [ov/47v [eev/ov{ OV |[FM/(MW/LW) |
A
=
fezol
isav_{
26v
fossy
{
__
ji
cs0
59
\
gs
rari
2.av_L
ov]
ov]
1/16
x=
«9
FM
/
MW
/
LW
[DK
BPF|
DK
COMPARATOR
DK
21
O.77V
0.78V
3.64V
:
:
SWITCHING
#2
06V
O3V
OV
2SD602A
aed
58 R59
1M
R.
1K
(7%)
é
RS3 1K = RS2 1K
c51
10/16
A
|
D
|
E
|
F
—38—
|
G
|
H