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RX-5220LS
RX-5220LS I f
witch to OFF,
-=MARKS
for maximum
for maximum
_ Adjust L2 by
) coil bobbin
ferrite core.
for maximum
steps (2)
.
for maximum
_ Adjust L2 by
} coil bobbin
errite core.
for maximum
3 steps (4)
for maximum
for maximum
| steps (6)
-maximimum
ig. 12)
maximum
ig. 13.)
for maxi-
output.
st for maxi-
output.
st for maxi-
output.
at steps.
5).
@ LED METER ALIGNMENT
ITEM
ADJUSTMENT
REMARKS
1. Supply DC 9.3 V through the DC IN jack.
2. Adjust VR301 so that the 5th LED from right begins to
illuminate.
Battery check
@ SEPARATION ALIGNMENT
SIGNAL
ar treate
90MHz, 60dB
CONN
ITEM
pila eesls
CONNECTION | ADJUSTMENT | SPECIFICATION
REMARKS
CONNECTION
COUNTER
,
:
Adjust VR1 for 19kHz
Adjustment of
_
Ww ...(+) side
:
pilot signal.
w ...(-) side
VR1
19kHz
icpett
tlh Read
@ AUDIO ADJUSTMENT
ADJUSTMENT
POINT
REMARKS
:
4.1+0.2mV
VR101 (Lch)
Record mode
Bias current
(Use CrO, tape)
VR201 (Rch)
Beat Proof — |
\
Bias oscillation
se
47.5 kHz+0.3 kHz
1301
Record mode
frequency
(Use CrO, tape)
(Beat Proof > 1)
Playback level
iste 046) | Speaker
VR202 (Rch)
Playback mode
MW ANT
= FM TUNE
FM TUNE
MW
ANT
pveols
[LED METER CIRCUIT BOARD]
ae
Oe
ee
ee
eat
|
Battery Check
|
[VASO
Bias Current
VR201
19kKHz
L
(War
[Fig. 10]
[Fig. 11]
i
A
t
TO RECELVER
1%
502
TO SG
(SG IMP 502)
SON
[9]
[Fig. 12]
[Fig. 13]
[Fig. 14] FM Dummy Antenna
3
SCHEMATIC DIAGRAM (CLOCK CIRCUIT) MODEL RX-5220LS
a
n
;
_.
«eee
3
33
om
4
g
a)
i)
+O
4
elle
Id
& 2a
o 3}
>
AM/>M dat 4bg
(2.8V) 0.2V
1G 401
3ce
3at
oo
2
~"
dat
2b
BATT
{.5Vx2
COM-~{
rT
r|
TT]
COM-2
Segre
|
| |
Segments)
ICao1
Dao1, 402
Daoa
"
RVITPO4O0N2L
182473
LN217RP
CLOCK/COUNTER
LSI
SWITCHING
STEREO
IND.
(G)
count Seg us
|
2
Seg
COM-1 Seg Off
coM-2 Seg On
Notes:
1. S401-1~S401-3:
Auto ON/OFF switch in "OFF" position.
2. S402-1~S402-2:
Auto/Sleep switch in ''AUTO"' position.
ee
be
3. $403-1, S403-2: Time set/light switch.
Aung sioe
4. S404: Minute set switch.
OUNT PULSE-IN
5. S405: Hour set switch.
ae
6. S406: Clock display switch in "TIME" position.
MINUTE-SET
7. $407:
ooo lial in "CLOCK" position.
HS
i
(@... clock, (2)... counter)
Fe hae
ie
8. S408: Doze/Sleep cancel switch.
cue er
9. S409: Counter reset switch.
CLK/CTR MODE
10. DC voltage measurements are taken with electronics voltmeter from negative
ete
terminal of battery. (
Jesse High position al "++ High
SLEEP-001
... Low
TE
CLOCK CIRCUIT BOARD
680%
iC401
High
Low |
High | Low
1~18] 2.8V | 0.2V | 30}
3V | OV
19]
2V | 1V | 31/1.5V)
OV
20]
3V ) OV | 32)
—
=
21]
3V |] 3V | 33)
3V | OV
2211.5V]
1.5V{
34]
3V | OV
23}
OV | OV | 35}
—
==
24;
OV | OV | 36}
3V | 0.7V
205).
=
—
| 37)
2.6V}
OV
26 | 2.8V|
OV | 38]
—
=
Ov
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