Panasonic RF-444 User manual

ORDER NO. TD83050104C1
FM/AM/FM
STEREO
RADIO
with
FEATHERWEIGHT
STEREO
HEADPHONES
li
SPECIFICATIONS
Frequency
Range:
FM88~
108MHz
Dimensions:
72(Wide)
X
117(High)
X
25(Deep)mm
AM525~
1610kHz
|
3
(2-Th"
X45"
X1)
intermediate
Frequency:
FM10.7MHz
Weight:
121g
(4.2
oz)
Without
Batteries
AM455kHz
|
Impedance:
Headphone
Jack
:+::*+"**
250000
39
Q
Sensitivity:
FM1.8uV
(—
6dB,
Limit.
Sens.)
@
Featherweight
Stereo
Headphones
AM
56.34V/m
for
1mW
Output
Input:
ImW
(Max.
25mW)
Power
Output:
~—
6O0mW
(30mW
X
2)
Maximum
Impedance:
32.Q
Batteries:
3V(Two
“AAA”
Size
Penlight
Batteries)
Connection
Cord:
1.5m
(59%6")
(Panasonic
UM-4
or
equivalent)
Weight:
55g (2
oz.)
with
cord
Weights and dimensions shown are approximate.
(Les poide et dimensions mentionnes sont approximatifs).
Specifications are subject to change without notice.
Matsushita Engineering and Panasonic Hawaii Inc. Panasonic Sales Company,
Service Company 91-238 Kauhi St. Ewa Beach Division of Matsushita Electric
50 Meadowland Parkway, P.O. Box 774 of Puerto Rico, Inc.
Secaucus. New Jersey 07094 Honolulu, Hawaii 96808-0774 Ave, 65 De Infanteria, KM 9.7
Victoria Industrial Park
Matsushita Electric. Carolina, Puerto Rico 00630
of Canada Limited
5770 Ambler Drive, Mississauga,
Ontario, L4W 2T3

Rear Cabinet Ass’y
. : :
( lip ee ee ee Se ee eS eS A x1
Battery
Cover
Cem
mmc
e
reece
een
eene
ns
erseeseee
B
pe}
1
Screw (2X8 vis rstne vaedistewasa ervereosie( CVD
Cabinet Cover vee deeedensreeeeresedeseeseee(DP MQ 3
Pcaicteeec amare, 1ekar aioe
DIAL CORD LENGTH: 36.5cm (14-9/64”)
CORD
PULLEY
L3
AM OSC
CT2| FM OSC AM OSC Sie
109.3 MHz 1650 kHz AM ANT
T2 |-AM 1st
# . 455 kHz
FM tst 4500 kHz
i
10.7.
MHz
go
T4.) FM end
1
wv aM ind 0.7 MHz
VY cs0
FM 19 kHz
Fig. 5

(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
MEASUREMENTS
AND
ADJUSTMENTS
M
ALIGNMENT
INSTRUCTIONS
>
READ
CAREFULLY
BEFORE
ATTEMPTING
ALIGNMENT
Notes: :
1.
Set
volume
control
to
maximum.
|
4.
Set
power
source
voltage
to
3
volts
DC.
2.
Set
band
switch
to
AM
or
FMST.
5.
Output
of
signal
generator
should
be
no
higher
than
3. Set power switch to ON. |
SWEEP GENERATOR
VOLTMETER or
[CONNECTIONS
|
FREQUENCY
_
SCOPE)
|
AM-IF
&
RF
ALIGNMENT
Fashion loop of
necessary to obtain an output reading.
INDICATOR
(ELECTRONICS
RADIO DIAL
SET.TING
(DISTANCE)
ADJUSTMENT REMARKS |
Point of non-
455 kHz Output meter
several
turns
of
wire
a
interference.
T2
(AM
lst
IFT)
Adjust
for
and
radiate
signal
ee
SAU
Ratan
Gace
null
T3
(AM
2nd
IFT)
maximum
output.
-
into
loop
of
receiver.
"|
600
kHz
;
Tuning
capacitor
” 511 kHz
fully closed.
Tuning
1650 kHz capacitor ”
| fully open.
”
1500
kHz
Tune
to
signal.
(*1)
Cement
antenna
bobbin
with
wax
after
completing
alignment.
High
side
thru.
y
0.001uF to point
Negative
side
to
10.7
MHz
point ¥
Connect
point
V
through
FM
dummy
antenna
Negative
side
to point 7 (Refer
to fig. 8.)
(*2)
Three
output
responses
will
be
present;
proper
tuning
is
the
center
frequency.
LS (AM OSC Coil)
CT4 (AM OSC
Trimmer)
Adjust for maximum
output. Adjust L4 by
moving coil bobbin
along ferrite core.
("1)L4 (AM
ANT Coil)
Adjust for maximum
output.
Repeat steps (2)—(5).
CT3 (AM ANT
Trimmer)
Connect vert.
amp. of scope to
Point of non-
Adjust for maximum
ane
point
Y
,
T1
(FM
lst
IFT)
amplitude.
90
MHz)
Negative
side
to
(Refer
to
fig.
6).
point ¥ .
@
Adjust for maximum
T4 (FM 2nd IFT)
amplitude.
(Refer to fig. 7).
Tuning
capacitor
fully closed.
Output meter
across voice coil.
(*2)Adjust for maxi-
mum output.
86.2 MHz L3 (FM OSC Coil)
Tuning CT2 (FM OSC
capacitor Trimmer)
fully open.
Ll (FM ANT Coil)
CT1 (FM ANT
Trimmer)
Adjust for maximum
output.
Repeat steps (8)~(11).
SSEPARATION
ALIGNMENT
FM
SIGNAL
EQUIPMENT
GENERATOR
CONNECTION
SOURCE
ELECTRONIC
ADJUSTMENT
SPECIFICATON
REMARKS
CONNECTION
COUNTER
|
Adjustment
of pilot
signal.
V ---(+)side
W ---(—)side
Adjust VR3 for 19 kHz (+ 100Hz)
90
MHz,
60
dB
19
kHz
reading
on
electronics
counter.
To
SG
.
(SG
imp
ail
|
To
Receiver
Fig. 6 Fig. 7 . Fig. 8 FM Dummy Antenna
eee Fa uc AT a RR

‘uoIpzISOd
WY------
(
)
‘uoiyisod
W4------
ae
‘Asayyeg
yo
jeuiwsa}
adiesau
uO
paseq
19}aW}jOA
‘LT
julod
3sa].....-
A
-
SOIUOIJIBJO
YPM
USYe}
Jie
SjUaWsINSea
ade}JOA
90
,
(MIIA
WOLLO8)
I-€S
‘3a
‘julod
3Sa}
SMOYS
(ga)
ew
ay,
“Zo
(HDIH---
+:
CMO
Z)
ard
JUDWIYSMIPY
ODA--eeeecereersseeteere
ees
EMA
"uolz!sod
HSIH,
Ul
YOUMS
BUOL
°Z2-ES
‘T-ES
VE
v
C C
I
9
Oo
Oo
q
Oo
Sure}
|OLJUOD
QUINOA...
-eeeeeeeeeeeee
eee
2
'TMA
‘9
(NO---€
‘d4O:--T)
‘UOINSOd
440,
Ul
YOUIMS
JaMOd
‘2S
°Z
Oo
0
0
O
012
21
¢
711
A
yndjno
wnwixew
(WV:-©
‘W4---@
‘LS-W4---)
1
jo
ol€
rs)
a6
WWE
[cree
yeusis
Ou
yuasing
AsaWeg
“G
‘uolyisod
=1S-W4,
Ul
YOHMS
pueg
:¢2-TS
‘LIS
‘T
.
$7
+
i
7
:SOJON
I
RY
dWVY
HS3MOd
dWV
HAMOd
SAINQ
3A3
OSHALS
XdW
Wa
2S
I-IS
pagigsSe
pOGWSZ
Pe9l9S2
ducZN1
O9EIVAIAY
i+
[err
6
‘9D
Ol
‘ZO
8‘SO
9G
ZOl
RA
oO
O
o-p
0
8
2S
_— 1
'
wee
a
aX
”
—»s
(WU WI ZUA
to
L008 199
(N62)
(AZT)
(AZT)
(AZT)
(AE)
(ASTD) (ABTO)
(A9'O)
[z2ms
“1e9"
7
|
agozeyane
_]Ase)
2200"
|
dz8y
oe
n
B73]
vcs
}
mh
2
ie
2
ET
=
ara
7)
e
"0
Azo)
1Qnved
dWYV
4v/L50
dWv
di
Wa
ncozgNOAd
OZ2INV
eNOSOAY
Gz99Sz
OSIVW
seBYSz
S
‘va
101
€d
0
eo
a
6/ppy-4d
1AZGOW
WVHDVIGC
SILVWAHOS

LUZ)
a
race
te
yu
3
wes
oI
oi
Rae
u
rare
wit
peestaste
peat
rae
Orncreany
sete
en
ree
teat
eae
SSH
TT
A
0
S|
A
0
a
at
\
a
rte
owed
ain
Peas
semaine
Gather
cca
bul
Sotee
Cet
=
AG6
0
AG6
0
,
i
init
veivessine
xe
saie
ities
scree
Home
seo
ror
stir
ts
ser
gzuern
de
tort
anette
rote
sae
ATA
ea
Wy
|
W4
eden
oR
ye
ME
yuig'd
AG?
Cs
sreonagn
ivr
Renae)
HA
tage
TAN
NST
Atel
NUnit
inte
HEIN
ABH
NE
ierenca
_gntuaniannetmun
inns
aeinuar
oman
aie
emte
ea
inigemrtsunnmsniterz
om
prremnacrcrmintety
AVS
O81
a
eeeeen
cesta
naan
rrp
aetecncertneesbenser
mth
crea
uranansrrtsr
Ai
eenecomureeranernn
iret mien
nennts
gstientemonsnteeeniy
frinviniiimaninimeymmiimenrmnisocnsote
inns
mnrm
nisi
nnes
tO
O/vyv-Ad
I=
"

Panasonic
Fig. 14
<A
R KHZOZTZA
P
P

MREPLACEMENT
PARTS
LIST
-:::-:::-:::---:-::-Model
RF-444/¢e
(TD83050104C1)
NOTES: .
1.
A
indicates
that
only
parts
specified
by
the
manufacturer
be
used
for
safety.
2.
The
S
mark
is
service
standard
parts
and
may
differ
from
production
parts.
Teane [ve
INTEGRATED CIRCUIT, TRANSISTORS AND DIODES
AN7226 IC 1
RVIBA1360 IC 1
2SARSX-B Transistor (Si) 2
2SCR?O-B Transistor (Si) 1
2SC1684HS Transistor (Si) 2
25C1684HR Transistor (Si) 2
2SA564
Transistor
(Si)
2
RVDKB265E
Diode
(Si)
1
MAI461 Diode (Si) 1
RVDSD113 Diode (Si) 1
RVDKB265G Diode (Si) 2
LN25RP Diode ((;a) 1
COILS AND TRANSFORMERS
RLD4Y 44 Antenna Coil, FM 1
RLO4Y60 Oscillator Coil, FM 1
RLF2Y31 _ Antenna Coil, AM 1
RLO2B107 Oscillator Coil, AM 1
RLI4B156 IFT, FM lst 1
RLI2B216 IFT, AM lst 1
RLI2B217 IFT, AM 2nd 1
RLI4B153 IFT, FM 2nd 1
VARIABLE RESISTORS
EVUCAAT65C14 Variable Resistor, 10K Q (C)/Volume
Control,
Variable Resistor, 1OK Q(B)
RVNACI4B2:
{==
VARIABLE CAPACITOR
VCi~4
RCV4LC4VN
Tuning
Capacitor
W/Trimmer
Capacitor
(CT1~ 4)
CERAMIC FILTER
CF1 RVFSFELO7MAZ Ceramic Filter, FM
Part
Name
&
Description
|
Part Name & Description
COMPONENT
COMBINATION
RXABPWB5
Component
Combination
Switch, Band (FM ST/FM/AM)
Switch, Power
Switch, Tone
RSS3B25Z
RSS2B40Z
RSS2B41Z
Jack, Headphones
RJJ1D15Z
RESISTORS (Value is In OHMS).
ERD25FJ222
22K
4%W
Carbon
I
S
ERD25FJ101
100
%W
Carbon
1
S
ERD25FJ102
1K
&%W
Carbon
1
S
ERD25FJ152
1.5K
4W
Carbon
1
i)
ERD25FJ332
3.3K
4%W
Carbon
1
S
ERD25FJ101
100
%W
Carbon
1
S
ERD25FJ472
47K
YW
Carbon
1
S
ERD25TJ104
100K
4%W
Carbon
1
S
ERD25FJ472
47K
44W
Carbon
1
S
ERD25TJ224
220K
4W
Carbon
1
S
ERD25FJ221
220
W
Carbon
1
S
ERD25FJ101
100
4%W
Carbon
1
S
ERD25T
J224
220K
144
W
Carbon
1
S
ERD25FJ562
5.6K
%W
Carbon
1
S$
ERD25FJ101
100
.'4%W
Carbon
1
S
ERD25FJ222
2.2K
\%W
Carbon
1
S
ERD25FJ102
1K
&%W
Carbon
1
S
ERD25FJ182
1.8K
%W
Carbon
1
S
ERD25F}103
10K
Y%W
Carbon
1
S
ERD25FJ682
6.8K
4W
Carbon
1
S
ERD25FJ561
560
4W
Carbon
1
S
ERD25TJ104
100K
4%W
Carbon
1
S
ERD25FJ221
220
YW
Carbon
1
S
ERD25TJ104
100K
4%W
Carbon
1
Ss
ERD25FJ221
220
4%W
Carbon
1
S
ERD25FJ122
1.2K
%W
Carbon
1
S
CAPACITORS
(Value
is
in
MICRO
FARADS
except
P.P
PICO
FARADS)
ECCDIH101K
100P
50V
Ceramic
ae

sie mine Dal laa l
C7
C8
C9
C10
Cll
C12
C13
C14
C15
C16
C17,18,19
C20
C21,22
C23
C24
C25
C26
C27
C28
C29
C30
C31
C32
C33
C34
C36,38,39
C40,41
C42,43
C45
C46,47,48,
49
C50,51,52
oS ee ae ee ee ee aes ree be mY ei ge ee yet Py ee wee ees OO etree) Be te oe ee
ECFVD333MD
ECKDIH103ZF
ECCD1H050C
ECKD1H102MD
ECCDIH330KC
ECCD1H070DC
ECKD1H102KB
ECKD1H102MD
ECKD1H103ZF
ECCD1H150KC
ECCD1H050CC
ECFVD103MD
ECCD1H070DC
ECFVD223MD
ECCDLH82uK
ECFVD223MD
ECEA1AS471
ECFVD223MD
ECEA50Z1
ECEA0JS471
ECKDIHMY2MD
ECCDIHLOOKC
ECKD1H102MD
ECFVD333MD
ECCD1H101K
ECEA50Z1
ECEA5S0Z2R2
ECF VD223MD
ECEA25Z4R7
ECFVD103MD
ECEASIZRI
ECFVD473MD
ECEA25Z4R7
ECCD1H221K
ECKD1H222MD
ECEAIAS101
25V Semi-Conductor
50V Ceramic
50V Ceramic
50V Ceramic
50V Ceramic
50V Ceramic
50V Ceramic
50V Ceramic
50V Ceramic _
50V Ceramic
50V Ceramic
25V Semi-Conductor
50V Ceramic
25V Semi-Conductor
50V Ceramic
25V Semi-Conductor
10V Electrolytic
25V Semi-Conductor
50V Electrolytic
6.3V Electrolytic
50V Ceramic
50V Ceramic
50V Ceramic
25V Semi-Conductor
50V Ceramic
50V_ Electrolytic
50V Electrolytic
25V Semi-Conductor
25V Electrolytic
25V Electrolytic
50V Electrolytic
25V Semi-Conductor
25V Electrolytic
50V Ceramic
50V Ceramic
10V Electrolytic
A ee oe ee ee ee ee re ee ee ee ee el
oo
RDD205TZ
RBT208TZ
RBT209TZ
RDS2061TZ
RZAF444MKT
RDZ03Y
XSN17+4
RD9266MK T
RKH202TZ 7
RPK238TZ
RPK238T Y
RPN1182TZ
RPP245TZ
RQX315TZ
Drum, Dial
Knob, Volume
_ Knob, Tuning
Spring, Dial
Chassis, Dial Ass'y
Cord, Dial
Screw
ACCESSORIES
Headphones
Belt clipper
PACKING MATERIALS»
Gift Box (U.S.A only)
Gift Box (Canada only)
Pad
Polyethylene Cover
PRINTED MATERIALS
Instruction Book (Canada. only)
TAMACO
bance]
Pointer Dial
RKF213TZ7 Rear Cabinet
RYMF444MKTS Front Cabinet Ass’y
RKK207TZ+ Battery Cover
RJC215TZ Terminal, Battery+Side, — Side
RDP214TZ .
XTN2+8B Screw s
ELECTRICAL PARTS
on RJC2V4TZ Terminal, Battery+ Side, — Side |
UBMIE] Ul Pau,
LYD/We OL

ORDER NO. TD 8403013381
Please
use
this
manual
together
with
the
service
manual
for
model
No.
RF-444/¢
order
No.
TD83050104C1
MAJOR
CHANGES:
The
circuit
board
has
been
changed
from
production
of
March
1984
onward.
CHANGES
@ REPLACEMENT PARTS LIST
Change of Part NO.
RF-444/© RF-444/C
(TD83050104C1) (TD84030133S1)
£3
RBT208TZ
RBT208TY
Knob,
Volume
Part Name & Description
VR1,
2
|
EVUCAAT65C14
RVV2H1C14
Variable
Resistor,
10K
2(C)/Volume
1
re
Sot Remark
CIRCUIT
BOARD
AND
WIRING
CONNECTION
DIAGRAM
Model RF-444/©
(TD83050104C1)
Matsushita Engineering and
Service Company
50.Meadowland Parkway,
Secaucus. New Jersey 07094
Model
RF-444/©
(TD84030133S1)
Panasonic Hawaii Inc. Panasonic Sales Company,
91-238
Kauhi
St.
Ewa
Beach
Division
of
Matsushita
Electric
P.O. Box 774 of Puerto Rico, Inc.
Honolulu,
Hawaii
96808-0774
Ave,
65
De
Infanteria,
KM
9.7
:
Victoria
Industrial
Park
Matsushita Electric ~ Carolina, Puerto Rico 00630
of Canada Limited ;
5770 Ambler Drive, Mississauga, YA a
Ontario, L4W 2T3 | od 2] 3 4
TDHM/CKT
Printed in Taiwan