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18
SCHEMATIC DIAGRAM(FT650/FT670)
19
C201
0.0lp
AAG
C301
mal
4700p O0G
=
C302
(R204
R302
Op OG
2
ie
t
<
<4
15
2.1V
PIO2-—2/2
1458, e1c
>B|
%3.4V
(3.8V)
Vv
v)
MW:II.9V
b
\FM,LW:OV
tl2Vb
QA06
2S A1309
CAO7 C 2
0.01
ed,
=
[4c
t]/RAli
<j
MW:11.0V
$M,LW:IL8V
0204 ©
Q504
2SA1309
Q503,0504
R502
R2t6
=
25C5365P,28C2458,
t
"Rr Aio
sian
FM:11,0V
<
ts
ee
MW,LW:118V
LM7OOON
X50!
c5027:2M "aa
47p AOG
A]
of]
PROGRAMABLE
IF
DIVIOER
OUN
CKT i J
FM:0.1V
MW,LW:1.8V
MW LIV
FM,LW:11.8V
LW:i lv
FM,MW:II.8V
P102-2/2
PIO2-2/2
vco
ON/OFF
SwiTCH
VWF
INTERFERENCE
|
SUPPRESSION
S7kHz
SYNCHRONIZATION
DEMODULATOR
X
.
4
5
13,
3.5V
E
c3il
lOy OG
§=R319
(WITH MUTE ON:0.7¥)
9302
|
C)
Ov
C315
ov }
eee
VOLTAGE
-TO-
SS
ASE
| TUNER OUTPUT
_o
ow
=n
447k
Oo
(ey)
Pe)
a
u! a
@ "
N
°o
CURRENT
CONVERTER
i
Q303
SYNCHRONIZATION
F
DEMODULATOR
OV
©) i
2
:
se
fA
rs
\
c3I6
:
=
1000p
SIGNAL
DEPENOENT
STEREO
CONTROL
Q304
| AAG
Q303,0304
—
oe
COS
319
2SC536SP_
go o1, L
Oly
25C2458,etc 1 AG
(WITH MUTE ON:0.7V)
PILOT
PILOT~
/
MONO / STEREO
LEO
PRESENCE.
DETECTOR
;
z=
SWITCH
-
ORIVER
foe
¥0.4VI6
3
(Ov)
:
R309
4.9V
Rse2,
Ase
+4.9Vb
'a 100k]
Q302
(WITH MUTE ON:4.1V)
peal
DTAI44ES.
{OV
;
Oip
oe
OG
WITH MUTE ON-OV)
—_ =4
0 |
ee
+i2Vvb
NOTE ON SAFETY:
Symbol A\ Fire or electrical shock hazard. Only original parts
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