Sanyo RP 8260UM User manual
SERVICE
MANUAL
PORTABLE
RADIO
RP
8260UM
SPECIFICATIONS
Frequency
ranges:
LW
150
—
285
kHz
Output
power:
MW
525
—
1605
kHz
SW
5.95
—
18.0
MHz
Transistor:
FM
87.5
—
108
MHz
Diode:
Intermediate:
LW/MW/SW
470
kHz
Power
source:
FM
10.7
MHz
Sensitivity:
LW
400unV/m
Current
consumption:
(for
50mW
output)
MW
100uV/m
Speaker:
SW
25uV/m
Dimensions:
FM
3uV
Weight:
Maximam
1300
mW
Undistorted
800
mW
11
16
DC
4.5for1.5V
“UM-1”
Size
x
3
AC
120/220V,
50/60
Hz
No
signal
30mA
92
mm,
8ohm
257mm(W)
x
162mm(H)
x
75mm(D)
Approx.
Approx.
1.5
kg
NOTE:
Specifications
are
subject
to
change
without
notice.
WM-4633
CABINET
&
CHASSIS
DISSASSEMBLY
1.
Remove
the
four
screws
Y1
(tapping
screw
pan
head
4.
Remove
the
two
screws
Y2
(tapping
screw
pan
head
3
x
20
mm)
attaching
the
BACK
LID
(2)
to
the
16
mm)
attaching
the
CHASSIS
(3)
to
the
CABINET
CABINET
(1).
(1).
2.
Unplug
the
antenna
cord
from
the
antenna
socket
(9)
on
The
CHASSIS
with
P.C.Board
can
be
separated.
the
Printed
Circuit
Board
to
separate
the
BACK
LID
(2).
5.
Detach
the
POINTER
(7)
and
DIAL
SCALE
(8).
3.
Detach
the
VOLUME
KNOB
(5)
and
the
TONE
KNOB
6.
Remove
the
one
screw
Y3
(tapping
screw
pan
head
3
x
(6).
10mm)
for
disassembling
the
TUNIG
SHAFT
AS-
SEMBLY
(4)
from
the
CHASSIS
(3).
P.C.B.
DISASSEMBLY
Before
removing
the
screws
from
the
dial
drum,
secure
it
with
string
so
that
the
dial
rope
will
not
come
off
adversely.
S>
SG
4
SA
ese
SS
rt
DIAL
CORD
STRINGING
2
1.
Prepare
dial
cord
and
tension
spring
as
shown
bellow.
2.
First
place
the
drum
in
such
a
position
as
it
provides
a
minimum
capacitance
for
tuning
gang.
Hook
a
free
end
of
the
spring
to
the
drum
and
thread
the
cord
as
shown
by
starting
from
No.
1
through
No.
8.
Please
give
if
four-turns
around
a
tuning
shaft
at
No.
2.
Pass
it
through
No.
3
&
4,
and
hold
it
temporarily
at
No.
5.
Fit
the
other
end
No.
8
of
the
cord
two
turns
in
the
arrow
direction
around
the
drum
and
finally.
METER
ADJUSTMENT
SPECIFICATION
1.
Adjustment
of
battery
meter
1-1.
Set
band
selector
to
MW.
1-2.
Adjust
with
no
signal
at
‘‘zero”’
input.
1-3.
Turn
variable
resistor
R330
(2KB)
to
adjust
needle
to
full
scale
(see
sketch).
TUNING
6
4
?
10
.
ae
ae
a
|
WW
BATTERY
1-5.
After
the
adjustment,
make
sure
the
needle
registers
in
the
green
range
at
3.2
V
DC.
2.
Checking
of
tuning
meter
2-1.
Set
supply
voltage
to
4.5
V
DC.
2-2.
Set
band
selector
to
FM,
and
tune
in
to
98
MHz,
40
dB
by
means
of
signal
generator.
2-3.
Make
sure
the
maximum
meter
swing
coincides
with
the
maximum
output.
2-4.
If
out
of
agreement,
develop
the
output
to
maximum
and
adjust
the
meter
swing
to
the
maximum
by
turning
the
IF
Transformer
T303.
2-5.
In
case
an
extreme
deviation
is
found
at
item
2-3,
readjust
V-curve
and
S-curve.
ALIGNMENT
PROCEDURES
GENERAL
ALIGNMENT
CONDITIONS
1.
The
position
of
volume
control
is
at
maximum
position.
2.
Signal
input
must
be
kept
as
low
as
possible
to
avoid
overload.
3.
Use
an
output
meter
of
the
highest
possible
sensitivity.
4.
Standard
modulation
is
400Hz
at
30%
amplitude
(for
AM)
and
22.5
kHz
deviation
(for
FM).
LW
BAND
—
Band
selector
switch
in
LW
position
Signal
Generator
Frequency
of
Radio
Meter
[Same
|
145
kHz
|
LowestEnd
|
Same
+
—Ose-Coli2_—«4|_—SsSame
[Same
|
205kHz
|
HighestEnd
|
___Same——~‘(|
Ose.
TrimcT
104.
|
—~'Seme_—
[same
|
160krz
|
160kHz
|
‘Same
——~—=«Y~SCAt.
Col
L109b
=~
——<Same
=
|
Same
|
280KHz
|
280kKHz
|
Same
|
Ant.
TrimcT102_
|
Same
Repeat
steps
2
thru
5
to
obtain
maximum
sensitivity.
MW
BAND
-—
Band
selector
switch
in
MW
position
Connection
of
input
Signal
Dial
Setting
Connection
of
Output
Remarks
Signal
Generator
Frequency
of
Radio
Meter
|
Same
|
505kHz
|
LowestEnd
|
Same
=|
Ose
Coll?
|
Same
[Same
|
1650kHz
|
HighestEnad
|
Same
‘|
Osc.
TrimveTa
|
Same
[s00KHz
|
600KHz
[|
_Seme
|
Ant.
coll
L109
Repeat
steps
1
thru
4
to
obtain
maximum
sensitivity.
|
SW
BAND
-—
Band
selector
switch
in
SW
position
Connection
of
Input
Signal
Dial
Setting
Connection
of
Output
|
R
k
Signal
Generator
Frequency
of
Radio
Meter
emarks
pt
|
Same
|
5.8
MHz
|
LowestEnd
|
Ose.
CoilL110_
|
Same
[2
[Same
|
19
MHz
|
LowestEnd
|
Same
———+|
Ose.
TrimoT109._|
Same
[3_[
seme
|
65MHe
|
65wHe
[Same
——+|
Amtcoil
Ling
‘|
—~—Same—*+
Repeat
steps
1
thru
4
to
obtain
maximum
sensitivity.
FM
BAND
—
Band
selector
switch
in
FM
position
Connection
of
Input
Signal
Dial
Setting
Connection
of
Meter
R
k
Signal
Generator
Frequency
of
Radio
or
Oscilloscope
Cees
Connect
Sweep
Connect
scope
input
Adjust
for
maximum
Marker
Generator
10.7
MHz
Lowest
End
cable
thru
network
IFT
T301,
302,
303
sensitivity
with
to
VCT2,
Ground
to
R314,
Ground
symmetrical
curve.
Connect
scope
input
Adjust
for
sym
10.7
MHz
Lowest
End
cable
thru
network
IFT
T304
mertrical
’’S”
to
R319,
Ground
curve.
Connect
Signal
Connect
V.T.V.M.
,
:
:
pa
cei
to
87.0
MHz
Osc.
coil
L109
Adjust
for
maximum
[seme
|
108.0MHe
|
HighestEnd
|
Same
—~=«d;~SCse.
Trimmer'veT2?
|
‘Same
[Same
|
90_MHe
|
90
MHz
AF
Conia
|
—~Seme
[Same
|
106
mz
|
106mez
[Same
—~*«Y
RF
Trimmer
vor!
[|
Same
Repeat
steps
3
thru
6
to
obtain
maximum
sensitivity.
PARTS
LOCATION
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|
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T304
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L112
=
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SCHEMATIC
DIAGRAM
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Q102
2SC1417G
.
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Q303
2S5C1417H
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|
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1
0,82V]
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R301
C111
SP
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|
100
CF301_R311
27
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7308
(N
1000)
ae
R314
270
C101
C103
R312
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=
8P
L101
30P
R103
56
C107
4P
12K
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SS
ks
|
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5P
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0
R321
100K
1
—
{+
D305
R330
2KB
L106
320//
R331
100K
R121
R109
15K
1K
R115
150
R333
47K
Q304
a
R326
R325
[]R324
2.2K
2.2K
{2.2K
ee
SDT1000
cov
38v
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S1-2
C326
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[ba
C322
0,022
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——
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S1-10
R319
1K
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HIT5609C
ae
£6
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R716
10
:
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do
C125
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—
=
&
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R120
22
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QO
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er
=
R
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;
12
22
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=
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x
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:
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25C1417G
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COMMON
ease
eee:
(ise
.
on)
G77
Q704
EC
EC
HIT9O14B
HIT9014B
HiT
5609C
20)
HIT
5609
2SC1417
PPeLere
|
(les
ee),
(sneha
ie
13
oe
LW
HIT
9014
TFM[4.5V
[3.8V|26V|
[FM[4.4v
|
36V
TEM
|4.5V
|
3.9V
S2---
AFC
SWITCH
S3....POWER
SWITCH
S4...-AC
/DC
SWITCH
S5----
VOLTAGE
SELECT
SWITCH
PARTS
LIST
PACKINGSPARTS
PARTS
a
|
141-6-410T-1
7009
141-6-132T-92806
141-6-144T-50700
141-6-144T-50800
141-6-231T-25400
141-6-231T-10250
Instruction
Manual
Individual
Carton
Pad
Pad
Polyethylen
Bag,
Set
Polyethylen
Bag,
Power
Cord
CABINET
&
|CABINET
&CHASSISPARTS
PARTS
141-0-111T-37205
141-0-126T-25909
141-0-128T-13101
141-2-447T-25800
141-2-447T-00800
141-0-171T-14500
141-2-271T-14700
141-2-163T-54900
141-2-163T-55000
141-0-311T-30000
141-0-566T-04610
141-2-146T-19204
141-2-164T-23600
141-2-164T-23700
141-2-164T-23701
141-2-538T-09700
141-2-513T-04300
141-2-511T-14500
141-2-340T-00100
123-2-48
1
R-00600
141-2-447T-00800
141-2-447T-62000
141-2-447T-00801
Cabinet
Assembly
Back
Lid
Assembly
Battery
Lid
Assembly
Cushion,
15
x
15
x
2mm,
for
Speaker
Cushion,
for
Back
Lid
Handle
Assembly
Bracket
Handle
Rotary
Knob,
Tuning
Rotary
Knob,
Volume
&
Tone
Chassis
Assembly
Tuning
Shaft
Assembly
Dial
Scale
Slide
Knob,
Band
Slide
Knob,
Power
Slide
Knob,
AFC
Drum
Carriage
Pointer
Dial
Rope,
0.3¢
x
700
mm
Spring
Coil
Cushion,
Dial
Scale
mrg.
Cushion,
meter
mtg.
Cushion,
Dial
Scale
mtg.
ELECTRICAL
PARTS
CT101,
103
CT102,
104
a
ae
ek
ed ed
”
—
T701
T702
Q101,
302,
wk
ak
and
aonb
0304,
701,
702
Q703,
704
D101,
107,
301,
306
D102,
302,
303
D103
D104,
305
D105,
106,
304
D701
D702
D703
TH301
L101
L102,
104,
106
L103
L105
L107
L108
NO
N=
AB
RB
RR
mmm
ms
os
or
A)
AQABA
L109
FIXING
PARTS
L110
L111
141-4-233T-34201
141-4-233T-39400
4-300T-09000
4-235T-26971
4-243T-77900
4-151T-28671
4-511T-08094
4-244T-80500
4-231T-37607
123-2-472R-11100
4-235T-34600
141-2-464T-08700
4-222T-68200
R701,
702
R330
4-222T-41073
4-224T-12200
141-2-381T-04200
4-237T-00100
4-234T-01971
Tapping
Screw,
3
x
10
mm
Pan
Head
Tapping
Screw,
3
x
8mm
Pan
Head
Tapping
Screw,
3
x
20
mm
Pan
Head
Tapping
Screw,
3
x
10
mm
Pan
Head
Screw,
2.6
x
4mm
Pan
Head
Tapping
Screw,
3
x
10
mm
Washer,
3
x
6.5
x
0.45
mm
P.C.B.
Assembly,
Radio
P.C.B.
Assembly,
Fuse
Power
Transformer
Socket,
AC/DC
Power
Cord
Speaker,
92
mm,
8
ohm
Meter,
TUNING/BATTERY
Rod
Antenna
Slide
Switch,
Voltage
Select
Switch
Lug
Socket,
for
FM
ANT
Fixer
Variable
Resistor,
1OK
ohm,
al
his
Semi-fixed
Variable
Resistor
Tuning
Capacitor
Bracket
Fuse
Terminal
Fuse,
800
mAT
Hexagon
Head
Bolt,
2.6
x6mm
Tapping
Screw
(WH),3
x
8mm}
2
L112
1
T301
1
T302
T303
4
T304
T305,
306
2
T307
2
1
CF301
1
711
R111,
311,
ak
awk
ak
ad ah
od
aod
ot
od
R314,
714
R309
R313
R303,
308
R101,
713
R712
R104,
110,
121,
315,
316,
319,
322,
332,
717
NO
A)
=
=
HNN
==
4-224R-01300
4-224R-10800
4-235R-14000
4-231T-66371
4-231T-81500
4-237T-00100
B101,
102
|123-2-471R-10400
4-254T-10900
4-254T-15200
4-265R-05010
4-265R-12610
4-265T-02710
4-265R-12510
4-252T-06600
4-257T-38100
4-257T-37701
4-258T-27410
4-258T-03511
4-258T-26510
4-256R-20810
4-256R-15810
4-256R-15110
4-256R-02310
4-256R-00110
4-256R-00210
4-256
T-80400
4-256T
-80471
Trimmer
Trimmer
Socket,
Earphone
Slide
Switch,
Band
Slide
Switch,
Power,
AFC
Terminal
Core
Input
Transformer
Output
Transformer
Transistor,
2SC1417
Transistor,
2SC1417
Transistor,
HIT9014
Transistor,
HIT5609
Diode,
H32
Diode,
1N60FM
Diode,
SD115
Varistor,
VD1221M
Diode,
H32
Varistor,
MA26
Diode,
DS17
Diode,
DS18
Thermister,
SDT
1000
VHF
Coil
VHF
Coil
VHE
Coil
VHF
Coil
Choke
Coil
Antenna
Coil,
SW
Antenna
Coil
Oscillator
Coil,
SW
Oscillator
Coil,
MW
Oscillator
Coil,
LW
IFT
\FT
1FT
IFT
IFT
FT
4
2561
80471]
IF
Filter,
FM
4-256T
-80473
4-256T-80474
RESISTORS
All
resistors
are
Carbon
P-type
+10%
unless
otherwise
noted.
ELECTRICAL
PARTS
1
R716
R112,
120,
10
ohm
22
ohm
27
ohm
33
ohm
39
ohm
47
ohm
56
ohm
100
ohm
120
ohm
150
ohm
270
ohm
330
ohm
390
ohm
470
ohm
680
ohm
820
ohm
1K
ohm
NO-NO
Nh
OW
BH
WOW
W
WAND
WN
W—
= 3
=
=
1
1
1
1
1
1
1
1
1
1
1
1
2
1
WN
——|N
GW
Ww
CO
=
AO A)
=
@
AQ
PARTS
LIST
RESISTORS
R107,
108
1.5K
ohm
2
R114
1.8K
ohm
1
R113,
324,
2.2K
ohm
4
325,
326,
R329,
710
2.7K
ohm
2
R119,
317,
5.6K
ohm
4
318,
704
R327
8.2K
ohm
1
R323
10K
ohm
1
R102,
105,
12K
ohm
3
312
R109
15K
ohm
1
R328,
708
18K
ohm
2
R302,
333,
47K
ohm
3
707
R305
82K
ohm
1
R320,
321,
100K
ohm
3
331
R122
150K
ohm
1
R307
220K
ohm
1
R703
560K
ohm
1
CAPACITORS
C308
Ceramic,
1pF,
+0.25pF,
50V
1
C107
Ceramic,
4pF,
+0.25pF,
50V
1
C113,118
Ceramic,
5pF,
+0.25pF,
50V
2
C101,
111
Ceramic,
8pF,
+0.5pF,
50V
2
C124
Ceramic,
8pF,
+0.5pF,
50V
1
(N470)
C314
Ceramic,
10pF,
+0.5pF,
50V
1
C112,
127
Ceramic,
13pF,
+5%,
50V
2
C106
Ceramic,
15pF,
+5%,
50V
1
C114
Ceramic,
18pF,
+5%,
50V
1
C102,
108
Ceramic,
20pF,
+5%,
50V
2
C103
Ceramic,
30pF,
+5%,
50V
1
C310
Ceramic,
30pF,
+5%,
50V
1
C116
Ceramic,
47pF,
+5%,
50V
1
C120
Ceramic,
75pF,
+5%,
50V
1
C129
Ceramic,
200pF,
+5%,
50V
1
(N220)
C301,
717
Ceramic,
220pF,
+10%,
50V
2
C109
Ceramic,
470pF,
+10%,
50V
1
C706
Ceramic,
820pF,
+10%,
50B
1
C117,
313
Ceramic,
0.001HF,+10%,
50V}]
2
C304
Ceramic,
0.0047/F,
+10%,
1
50V
C311
Ceramic,
0.0056HF,+10%,
50V
1
C110,
119,
122,
131,
132,
133,
’
5
327.712.
Ceramic,
0.01HMF,
+80
—20%,
12
713,714,
SOV
715,
718
C105,
305,
309,
316,
Ceramic,
0.022HF,
+80
—20%,}
5
50V
322
C134
Styrol,
250pF,
+5%,
50V
1
C126
Styrol,
340pF,
+5%,
50V
1
C123
Styrol,
0.002HF,+5%,
50V
1
C104,
302,
Semi
conductive,
0.01/F,
7
318,
319,
+20%,
25V
709,
710,
716
.
C303,
317,
Semi
conductive,
0.0224F,
5
323,
324,
+20%,
25V
325
C306,
326
Semi
conductive,
0.039/F,
2
+20%,
25V
C701,
702
Semi
conductive,
0.047HF,
|
2
+20%,
25V
C315
Semi
conductive,
0.14F,+20%,
1
12V
C125,
128
Mylar,
0.00474/F,
+20%,
50V
2
C130
Mylar,
0.0022HF,
+20%,
50V
1
C703,
707
Electrolytic,
14#F,
25V
2
C320,
321
Electrolytic,
4.7HF,
25V
2
C704,
705
Electrolytic,
220HF,
10V
2
C708
Electrolytic,
1OOOHF,
10V
1
C711
Electrolytic,
2200UF,
10V
1
—8—
SANYO
ELECTRIC
TRADING
CO.,
LTD.
33,
Hiyoshi-cho
2-chome,
Moriguchi-shi,
Osaka-fu,
570
Japan
Dec/'79/1300KM
Printed
in
Japan
Table of contents
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