Realistic STA-16B User manual

-aLtstC
Serulce
STA-168
AM/FM STEREO REGEIVER
Catalog Number: 31 -2078
0B RADIo sHACK fln DMSIoN 0F TANDv coRponAloN
CUSTOM MANUFACTURED F

1)
2l
3)
4\
5)
6)
7l
8)
e)
10)
11)
121
13)
141
15)
16)
ELECTRICAL PE RFORMANCE
D ISASSEMB LY I NSTRUCTIONS
DIAL STRINGING DIAGRAM
BLOCK DIAGRAM
ALIGNMENT INSTRUCTIONS ...,.,7_
LEVEL DIAGRAM
SPECIFICATIONS ,3-4
TROUBLESHOOTING
AM/FM TUNER, IF & MPX P.C.B. (TOP & BOTTOM VIEWS)
PRE AMP & TONE CONTROL P.C.B. (TOP & BOTTOM VIEWS)
11-12
13
14
5
5
6
9
10
15
16
MAIN AMP P.C.B.
JACK P.C. B.
POWER SUPPLY P.C.B. (TOP
IC & TRANSISTOR LEAD ID
ELECTRICAL PARTS LIST
(TOP & BOTTOM VIEWS)
(TOP & BOTTOM VIEWS) 15
& BOTTOM VIEWS)
ENT|F|CATION ....... 16
17 -22
23-24
24-25
26-27
MECHANICAL PARTS LIST
IC INTERNAL DIAGRAM
17) SCHEMATIC DIAGRAM
18) EXPLODEDVTEW ...28-29
-2-

1} ELECTRICAL PERFORMANCE SPECIFICATIONS
AM BAND
Frequency Coverage
IF
Antenna Sensitivity for S/N 20 dB
at 600 kHz
at 1000 kHz
at 1400 kHz
Terminal Sensitivity (S/N 20dB)
ACA at S/N 6 dB Sensitivity at 1000 kHz
AGC Distortion at 1000 kHz
1000 mV/m, 80% modulation
AGC Figure of Merit
I F Rejection at 600 kHz
lmage Rejection at 1400 kHz
Distortion at 5 mV/m 30 % modulation 400 Hz
Tape Out Level 5 mV/m 30 % modulation 400 Hz
Fidelity 5 mV/m lnput (1 kHz = 0 dB) -6 dB down
Whistle Modulation of 2nd and 3rd Harmonic
at 1 and 5 mV/m lnput
Calibration Accuracy at 600 kHz
at 1400 kHz
S/N Ratio at 5 mV/m lnput, 1000kHz
FM BAND
Frequency Coverage (For UL AND C.S.A.)
Frequency Coverage (For European and Australian)
IF
IHF Sensitivity at 90, 98 and 106 MHz
S/N Ratio at 1 mV lnput
FM Limiting - 3dB
I F Rejection at 90 MHz
lmage Rejection at 106 MHz
Capture Ratio
ACA t 400 kHz at 100sV
Audio THD 400 Hz, 75kHz Dev.
Calibration Accuracy at 90 MHz
at 106 MHz
AFC Holding Range with 1 mV Signal
THD at Maximum Signal Handling Capacity
of 200 mV lnput
Tape Out Level 75 kHz Dev. 400 Hz 1 mV
NOTE: All sets must meet the requirements of the FCC.
75 psec. de-emphasis for UL and C.S.A. models
and Australian models).
* European models must not be able to tune below
UNIT
kHz
kHz
pV lm
pV lm
uV lm
rrV
dB
o/
/o
kHz
kHz
dB
MHz
MHz
MHz
pV
UNIT NOMINAL LIMIT
4
1t3dB
Frequency response must meet the
(50 psec. de-emphasis for European
87.5 MHz.
NOMINAL LIMIT
515 - 1650 520 -1625
455
500
500
500
22
'10
38
28
35
3.5
200
2AO
200
200
15
30
ot
/o
dB
dB
dB
o/
/o
mV
Hz
4
45
36
45
1.5
250
50 - 2500
5
43
dB
pV
dB
dB
dB
dB
o/
/o
kHz
kHz
kHz
10
t25
t50
37
86.5 - 108.5 88 - 108
*87.5 - 108.5 87.5 - 109
10.7
2.8 5.0
(14.1 dBf) (19.2 dBf)
58 50
36
70 60
45 35
2.5 6
40 25
0.6 1.5
t 500
r b00
t 300 t 300 t 150
o/o 1.5
V1
-3-

FM MPX SECTION
Stereo lndicator "ON" Level
Separation at 1 mV
at 100 Hz
at l kHz
at 10 kHz
Stereo Distortion 1 mV 1 kHz
38 kHz Rejection
S C A Rejection
AUDIO SECTION
lnput lmpedance PHONO Mag.
AUX
Output Power at THD of 0.9 %, 8 ohm
Both Channels Driven at 1 kHz
Power Output, 8 ohms, Both Channels Driven,
THD 0.9 o/o, 30 Hz - 2O kHz
Sensitivity for Rated Power
PHONO Mag.
AUX
Frequency Response at AUX (1W t 2 dB)
BASS Action at 100 Hz
TREBLE Action at 10 kHz
Hum and Noise at Min. VOLUME
Hum and Noise at Max. VOLUME,Tone Max. (AUX mode)
Signal to Noise Ratio
at PHONO Mag. 5 mV lnput (lnput Short)
at AUX 200 mV lnput
Cross Talk at 1 kHz AUX
Bass Compensation at 100 Hz, -30 dB VOLUME
Treble Compensation at 10 kHz, -30 dB VOLUME
TAPE OUT Level PHONO Mag.
at 5 mV lnput
AUX at 200 mV lnput
PHONO Mag. Eq. Response at 100 Hz
at 10 kHz
PHONO Mas. Overload (THD = 0.9 %)
UNIT
pV
dB
dB
dB
o/o
dB
dB
UNIT
K ohm
K ohm
W
W
mV
mV
Hz
dB
dB
mV
mV
NOMINAL
10
NOMINAL
50
450
7.O
b
2.5
150
40 - 22k
t 10
t 10
1
20
LIMIT
20
25
30
22
2.0
40
40
33
38
30
0.8
55
55
60
60
60
+9
+4
dB
dB
dB
dB
dB
LIMIT
5.5
5
3.5
200
50-18k
t 10 r 3
t 10t 3
3
70
50
50
45
+9 t 3
+4t3
250 200
250 200
+13 +13t2
-13 -13t2
82 70
mV
mV
dB
dB
mV
NOTE: The supply voltage is 120 volt AC,60 Hz (for UL and C.S.A. models) from a regulated
power supply. lUse 2201240 volt AC, 50 Hz for European and 240 volt AC, 50 Hz for
Australian models.)
The power source must be isolated f rom other equipment connected to antenna or output.
The room temperature is 25 degrees C.
Nominal Specs represent the design specs; all units should be able to approximate these
- some will exceed and some may drop slightly below these specs. Limit Specs represent
the absolute worst condition which still might be considered acceptable; in nocase should
a unit perform to less than within any Limit Specs.
-4-

2I DISASSEM BLY I NSTR UCTIONS
1) To remove chassis from wood-
en cabinet.
Turn the cabinet upside down
and remove the four Pan head
screws from the bottom cabi-
net.
*-4'4qrCaia** .W ,i
2) Removal of front panel (Alu-
minium panel).
a. Remove the chassis from
wooden cabinet as describ-
ed in 1).
b. Pull out the main chassis.
c. Remove the two Pan head
screws from the top and the
three Pan head screws from
the bottom of the front
panel.
d. Remove knobs and pull off
panel.
3) To remove rear panel from
chassis.
Remove the three Pan head
screws from the rear panel.
3} DIAL STRINGING DIAGRAM
P
('r) I
P
IeStart with Capacitor set with
Plates Fully Unmeshed.
o Pointer position: HIGH END
. Start : Spring
o Finish: Hook
+
RNS)
t2t
/<\
.&)
{3)
.'' I
{2 TU
m6'^.''
-5-

4I BLOCK DIAGRAM
ff=
YU
flhtr
SAof
oo
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
J
ai
E\
<:
Zo
<ro
=-,
,l
ul
zl
zl
<l
II
olI
+t
(,l
El
I
ul
zl
zl
8t
Ei
J
o
tr
-(o
UN
E
UF
z
o
F
)
E
F
z
o
o
U
z
o
F
r
I
I
I
rl,
EI;
zlt
+l'
olr
'-li
Lll
UI,
,ll
I
I
I
I
I
I
I
I
I
I
I
I
I
t-
a
E.
o
o
x
c
6
E
E
UJ
z
l
F
=
L
3
I
I
&
U
(ts
J
U
z
z
I
tr
o
F
Jl o@o9
=lElr=[u
Jl "L--1--' j
o
U
tr
lrJ
F
o
=I
=
(I
a
U
o
r
U
J
o
UJ
EO
FG
6>
g8
6
fr8
le
Ui
='
_Ed
d6
E-
u9d
liF
g==
=o
oo
oo
=E
L
=
u9
EG
II
O
F
=
a
-6-

5} ALIGNMENT INSTRUCTIONS
EOUIPMENT REOUIRED
1. AM Signal Generator
2. AC Voltmeter
3.'Oscilloscope
AM IF & RF ALIGNMENT
NOTE:
o Signal Generator output should be no higher
than necessary to obtain an output reading.
r Maintain line voltage at 12O volts. (UL, C.S.A.)
(Use 22Q1240V AC For European & Australian
Models.)
o Set SELECTOR Switch to AM.
o See P.C.B. illustrates for alignment points/ad-
justments.
TUNER COIL & TRIMMER LOCATIONS
AM INTERNAL BAR ANTENNA
FC 1O1) OC 104) OC rO2) fiC 1o5)
FM ANT AM ANT FM RF AM OSC.
TRIMTTER TRIMMER TBIMMER TRIMMER
AM ALIGNMENT SET-UP
AM SIGNAL GENERATOR i
i._-- 2' (6ocm)
FM RF & IF ALIGNMENT
EOUIPMENT REOUIRED
1. FM Signal Generator . ... Output
2. Sweep Generator
3. AC Voltmeter
NOTE:
o Signal Generator output should be no higher
than necessary to obtain an output reading.
o Set SELECTOR Switch to FM.
Figure 3
Level: 1 mV 4. Oscillator
5. Distortion Meter
o Maintain Line voltage at12O volts. (UL, C.S.A.)
(22O/24OV AC For European & Australian
Models.)
o Refer to P.C.B. illustrations for test points/ad-
justments.
lo.
VO LTMETE R
STEP SIGNAL GENERA.
TOR COUPLING SIGNAL GENERA-
TOR FREOUENCY DIAL SET.
TING INDICATOR ADJUSTMENT REMARKS
1
Connect standard
loop ANTENNA to
Signal Generator and
radiate s ignal into
the AM Ferrite an-
tenna. See Fig.3.
455 kHz
(400 Hz, 30% MOD) Point of
non-i nterfer-
ence (near
600 kHz)
AC Voltmeter
to TAPE OUT
Jack
T106
T1 07
T108
T109
Adt'ust for maxi-
mum reading
2Same as above 600 kHz (400 Hz,
30 % MOD) 600 kHz Same as above T105 (OSCCoil)
L6O2 (AM ANT
Coil)
Adjust for maxi-
mum reading
3
Same as above 1400 kHz (400 Hz,
30% MOD) 1400 kHz Same as above TC105
(OSC Trimmer)
TCl04
(ANT Trimmer)
Adjust for maxi-
mum reading
4Repeat Steps 2 and 3 until no further change is noticed.
5
Same as Step 1. 1000 kHz (400 Hz,
30% MOD) Output
level to 100 mV/m
Point of
non-i nterfer-
ence and no
signal
AM Strength
Meter on
Receiver
Select value of
Rr60 Select value so
Meter Pointer on
Receiver reads
between SOYo
and 90 % on the
Meter
-,/
TAPE OUT (L or R)
-7 -

STEP GENERATOR COU.
PLING GENERATOR FRE.
OUENCY RADIO DIAL
SETTING INDICATOR ADJUSTMENT REMARKS
1
Sweep Generator to
TP3 on FM Front
end boad
10.7 MHz
(1400 kHz Sweep) Any dial set-
ting where
no notse or
intdrference
exists
Scope to TP7
at R151
(MPX input)
AM/FM/MPX
Board
T101,102,103,
104 (Primary)
FM IFT
Adjust for maximum
amplitude and prop-
er linearity between
1150 kHz markers
Refer to Fig. 5.
2
Sweep Generator to
TP3 thru FM Dum-
my antena
(300 ohm)
10.7 MHz
(1400 kHz Sweep) Any dial set-
ting where
no noise or
i nterference
exists
Scope to TP7
at R151
(MPX input)
AM/FM/MPX
Board
T101,102
FM IFT Adjust for maximum
am,plitude and prop-
er linearity between
1150 kHz markers.
Refer to Fig. 5.
3
Same as above 10.7 MHz
(1400 kHz Sweep) Any dial set-
ting where
no noise or
i nterference
exists
Scope to TP7
at R151
(MPX input)
AM/FM/MPX
Board
T104
FM IFT
(Primary and
Secondary)
Adjust for symmetri-
cal "S" curve as
shown in Fig. 4
4
Signal Generator to
F M Antenna Ter-
minal thru FM Dum-
my antenna
(300 ohm)
98 MHz
(400 Hz, 100%
MOD)
Tune for
Maximum
reading on
meter
Distortion
Meter to TAPE
OUT Jack
T104
FM Discrim.
(Secondary)
Adjust for minimum
distortion
5Same as above *86.s MHz
See Note in Step 7. Tuning gang
fully closed AC Voltmeter
and Scope to
TAPE OUT
Jack
Ll 05
(FM OSC) Adjust for maximum
reading on meter
bSame as above 108.5 MHz Tuning gang
fully opened AC Voltmeter
and Scope to
TAPE OUT
Jack
TCl03 (FM
OSC Trimmer) Adjust for maximum
reading on meter
7Repeat Steps 5 and 6 until Tuning Range Covers exactly from 86.5 MHz to 108.5 MHz.
(*European & Australian models must not be able to tune below 87.5 MHz.)
8
Signal Generator to
FM Dummy antenna
(300 ohm)
90 MHz 90 MHz
Tune to
Signal
AC Voltmeter
and Scope to
TAPE OUT
Jack
L1 01
(FM ANT Coil)
1103 (FM RF
Coil; stretch or
squeeze)
Adjust for maximum
reading on meter
oSame as above 106 MHz 106 MHz
Tune to
Signal
AC Voltmeter
and Scope to
TAPE OUT
Jack
TC1O1 (FM
ANT Trimmer)
TCl02 (FM RF
Trimmer)
Adjust for maximum
reading on meter
l0 Repeat Steps 8 and 9 until no further improvement is noticed.
11 Same as Step (8)
ANT. input: 1 mV 98 MHz 98 MHz
Tune to
Signal
10T1 Adjust for maximum
reading on meter
12 Same as Step (8)
ANT. input: 100mV 98 MHz 98 MHz
Tune to
Signal
VR101 Adjust so the Meter
Pointer on Receiver
is full scale.
FM ALIGNMENT SET-UP
3OOO DUMMY FM ANT
(l_ "'' u, tor't
PATTE RN TAPE OUT
(L or R)
Figure 5
FM SIGNAL GENEBATOR
SCOPE PATTEBN
Figure 4
Sweep Gen
-8-
AC V.T-V.M- DISTORTION METER

FM STEREO ALIGNMENT
EOUIPMENT REOUIRED
1. Stereo Modulator.... Connect Stereo Modulator to EXT, Mod. terminal 3. Audio Generator
FM signal generator. 4. AC Voltmeter
Modulation Level of 19kHz Pilot Signal .. . 8-1}o/o b. Oscilloscope
2. FMSignal Generator..OutputLevel .....1mV 6. Distortion Meter
Frequency .. Approximately g8 MHz. 7. Frequency Counter
Deviation .75k{z l0}yo modulation of
composite signal.
NOTE:
o See P.C.B. illustration for alignment/test points.
. Set SELECTOR switch to FM and MODE switch to STEREO.
MULTIPLEX & SEPARATION ALIGNMENT
STEP SIGNAL GENERA.
TOR COUPLING STEREO MODULA.
TION IND!CATOR ADJUSTMENT REMARKS
1
Connect to FM An-
tenna Terminal thru
FM Dummy antenna
(300 ohm)
Mono.1 kHz
(1000 Hz, No t\tlod)
lnput 1 mV
Counter connected
to TP14 at Pin No.
12 of lC
VR 103 Ad just for 19 kHz t50
Hz on Counter.
Refer to Fig. 6.
2
Same as above Composite MPX Sig-
nal 1 kHz on Left
Channel ONLY
AC Voltmeter con-
nected for TAPE
OUT Jack of Right
Channel
VR 102
(Separation )Adjust for minimum
reading.
Refer to Fig. 7.
3
Same as above Composite MPX Sig-
nal 1 kHz on Right
Channel ONLY
AC Voltmeter con-
nected for TAPE
OUT Jack of Left
Channel
Same as above Same as above
4Repeat Steps 2 and 3 until AC Voltmeter reading is at least -33 dB re same channel output
(i.e., 33 dB separation).
5
Same as Step 1Composite Signal
1 kHz AC Voltmeter con-
nected to TAPE
OUT Jack
Select value of
R179 With'l 0trrV antenna
input signal, stereo in-
dicator lamp should
come on.
FM STEREO ALIGNMENT SET-UP
FM ANT
TERMINAL
DUMMY
AC VOLTMETER
TAPE OUT
JACK
FREOUENCY
COUNTER
16 15 14 13 12 11 r0
23 4 5 6 7I
Figure 6
-9-
Figure 7

6} LEVEL DIAGRAM
AUDIO FREOUENCY= I kHz
THE VALUE SELECTED PARTS
The value of some parts is selected at the factory for optimum operation. lf the circuitry does not
operate properly, you can change these values.
C101: ln some case, oscillation may take place in FM reception. Removing this capacitor may stop
oscillation.
R128: This is to control level of local oscillator. Use larger value to decrease level.
R160: As noted on page 7, this is to control AM Signal Strength Meter. Use larger value to decrease
Meter deflection.
R179: Use smaller value to increase FM STEREO indicator sensitivity.
m
3
z
(9
UJ
(9
q
o
SPEAKER
OUT
35,5dB
2,SmV= OdB
-10-

7} TROUBLESHOOTING
SYMPTOM CAUSE/REMEDY
1 ) No output. 1. Faulty AC power cord
Replace the cord.
2. Defective power switch
Replace the switch.
3. Broken wire in the power transformer
Replace the transformer.
2) Pilot lamp does not light. 1. Broken lamp
Replace the lamp.
2. Open in the power transformer tertiary winding
Replace the power transformer.
3 ) Pilot lamp lights but no speaker output. 1. Defective capacitor C403
Replace the defective capacitor.
2. Defective diode D401 ,402,403 or 404
Replace the defective diode(s).
3. Defective in the power transformer secondary winding
Replace the power transformer.
4) Blows fuse. 1. Defective diode D401-4O4 in the rectifier circuit
Replace the defective diode(s).
2. Short-circuit in the rectifier circuit
Remove the short.
3. Short-circuit in Main Amp circuitry
Repair circuit and/or replace the defective power lC 301
5-1) No output one channel with VOLUME
at maximum and BALANCE at center,
when a test signal is applied to the ter-
minal of non-operating channel of the
BALANCE control VR2O2.
1. Defective transistor TR205,206 or TR301-308
Replace the defective transistor(s).
2. Defective resistor or capacitor of TONE or MAIN AMP
circuit
Replace the defective part(s).
3. Defective power lC 301
Replace the power lC.
5-2) No output when a test signal is ap.
plied to the input terminals. 1. Defective transistor, resistor or capacitor of PRE AMP
circuit
Replace the defective part(s).
2. Defective MONO/STEREO switch
Replace or repair the switch.
3. Defective Selector switch
Replace the Selector switch.
6) Speaker works normally
phone does not work. but head- 1. Defective R601 (left) or R602 (right)
Change it.
7) All the inputs work normally except
"AUX" input. 1. Poor contact in "AUX" input jack
Replace or repair it.
2. Defective resistor R501, 502, 503, or 504
Replace it.
3. Poor contact in Selector switch
Repair or replace the switch.
8) "PHONO" input not operative. 1. Poor contact in "PHONO" input jack
Repair or replace it.
2. Faulty Selector switch
Repair or replace the switch.
9) "TAPE OUT"inoperative. 1. Poor contact in "TAPE OUT" output jack
Repair or replace it.
- 1't -

SYMPTOM CAUSE/REMEDY
't0) No AM or FM.
(TUNER B+ voltage is not 11-12Vl,. 1. Broken tertiary winding in the power transformer
Beplace the transformer.
2. Defective diode D405
Change the defective diode.
3. Faulty capacitor C4O2,4A4 or 405
Change it.
4. Defective resistor R401 or 403
Replace the resistor.
5. Zener diode D406 defective
Replace the diode.
6. Short circuit in TUNER B+ circuit
Remove the short.
7. Poor contact in Selector switch
Repair or replace it.
11) No FM. 1. Poor contact in Selector switch
Repair or replace it.
2. Defective resistor or capacitor of FM Tuner circuit
Replace the defective part(s).
3. Transistor, diode, lFT, resistor or capacitor of FM Tuner
& lF board defective
Replace the defective part(s).
4. Faulty FM Antenna lead'in/circuitry
Repair or replace the Antenna lead-in/circuitry.
12) No AM. 1. Poor contact in Selector switch
Repair or replace the switch.
2. Transistor, diode, lFT, resistor or capacitor of AM lF de-
fective
Replace the defective part(s).
3. Bar-Antenna coil defective
Repair or replace it.
13) No MPX separation. 1. lmproper adjustment
Readjust it.
2. lC of MPX board defective
Replace the lC.
3. VR102 or 103 (Trimmer resistor) defective
Replace it.
14) No stereo light. 1. Broken ST. indicator lamp
Replace the lamp.
2. Defective lC of MPX board
Change the defective lC.
3. lnadequate value of R179
Try changing value.
15) FM STEREO does not work. 1. Defective lC (LA 3350)
Replace it.
2. Defective VRl02 or 103
Replace it.
3. Defective transistor, resistor, capacitor or diode of FM
MPX circuit
Replace the defective part(s).
4. Defective pilot lamp PL6
Replace it.
16) "BASS" has no effect. 1. VR204 (100 K ohm control) defective
Replace it.
2. Defective R237, 238, 239, 24O,241,242, C235, 236
237 or 238 of Tone Control Board
Replace the defective part(s).
17) "TREBLE" has no effect. 1. Faulty VR203 (100 Kohm control)
Replace it.
2. Defective C231,232,233,234, R243 or 244 of fone
Control Board
Replace the defective part(s).
12
A
ii
Y
i
!

TOP VIEW
8} AM/FM TUNER, IF & MPX P.C.B. (TOP &
BOTTOM VIEWS}
TOP VIEW BOTTOM VIEW
-13-

9} PRE AMP &TONE CONTROL P.C,B. (TOP &
BOTTOM VIEWS}
TOP VIEW BOTTOM VIEW
ro n3o $
=o u8o o
o 80 d3q
lln- \--lc2o5
u3 o^
diUU
Ir- ll1,
E(, liq
c255 c235
--1 t--
E.545 . ;8+i:
rmrnzotcaot--V\ .- -*-+ l#
c2o3 9o
;F lu
o
IN
=u
lo l3 -r$
l-t ,/ -
R209
*?!.t *".ou
nvF ---.J\A/\-
**l**+i
J 1_l
3241
c?3t
IF
o
ilo
IB
R239
c237
--{F
-l 4-+
.ri -t5 O= -
JF JH il-,-$s+*g:?
85 'niee i
L2r6_ ht-.-f
+o +q
rN l{
*o RZrS
tH nzrs
R234 R233 --aAAr- , -' aO
--iAnr- --4 ,-
^{Ii$
-Bl
aNO
,Sl
-DO
la c2t4 try l@ i
lF +' ' rDal
c?o5
rff '+:+ +* l3,q_
Ts ..,o+-.. +8
cl?s -fi-* ->$'u
--#+ B.g- igo"
J' til trff
--tS l= laqa I t
'fH r8 *)8 ?
) lo c2o4--'"
+aztz 1l czoz a
R202 -{-+ =
R234 orar --4AAr- - ' :
$i:e .$*is:,1
+o -.\/1 - --arW- T "t@t!
iii nii6 aziz- I S cz2t
{.N ----U/\-- ZN JL f
ro R23o lo czl.z *ra
ll-
--'t <
ln
TE
*fl
!J lo
1N
+*/$
1.
<n
rTu
\1"
, \ .2,
,\+H NNN
o(,&
oaa
rmm
,1
t
a8-
.PT
a$r
an- a o rl
x u Bt
t::-:?ffi$@u*E
.uo'vl\. ,fl--
':? \7" lii"il,
se&
('o
-14

A
;,
V
1OI MAIN AMP
TOP VIEW
P.C.B. (TOP &
(TOP & BOTTOM
BOTTOM VIEWSI
BOTTOM VIEW
11) JACK P.C.B.
TOP VIEW
VIEWS}
BOTTOM VIEW
f,
!
-15-

I,5A 25OV FIJ6E
121 POWER SUPPLY P.C.B.
TOP VIEW
(TOP & BOTTOM VIEWS}
BOTTOM VIEW
J-
13I IC & TRANSISTOR LEAD IDENTIFICATION
2SC 900
2SC 923
2SC 945 2SC 1571
2SC 930
2SC 644
2SC 828
2SC 829
2SC 1047
2SC 1359
2SK 41 2SK 19
S
- tb-

14} ELECTRICAL PARTS LIST
CAPACITORS
Ref.
No. Value
(F) '?llin' Tolerance
(%l Material
c 101*
c 102
c 103
c 104
c 105
c 106
c 107
c 108
c 109
c 110
c 111
c 112
c 113
c 114
c 115
c 116
c 117
c 118
c 119
c 120
c 121
c 122
c 123
c 124
c 125
c 126
c 127
c 128
c 129
c r30
c 131
c 132
c 133
c 134
c 135
c 136
1P
30P
15P(NP0)
0.01p
0.01rr
0.01p
30P
10P
15P(NP0)
0.01p
1 50P
1P
0.01p
0.01s
0.01p
0.01p
0.04p
0.04p
0.01p
0.04p
0.04p
0.0047s
0.01p
0.01p
7P
7P(NPO)
1 8P(N470)
15P(N P0)
10P(NP0)
0.01p
0.01p
0.021t
0.02tt
10P
30P
0.02rt
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
50
25
25
50
25
25
25
25
25
25
25
25
25
25
25
25
25
25
t 0.5
r5
r5
+80
-20
+80
-20
+80
-20
t5
r5
t5
+80
-20
r5
1 0.5
+80
-20
+80
-20
+90
-20
+80
-20
+80
-20
+80
-24
r 10
+80
-20
+80
-20
r 10
+90
-20
+90
-20
I 0.5
r 0.5
r5
15
r5
+80
-20
+80
-20
+80
-20
+80
-20
t5
r5
+80
-20
Ceramic
Ceramic
Ceramic
Ceramic
Geramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Mylar
Ceramic
Ceramic
Mylar
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Bef.
No. Value
(F) 'ti,}in' Tolerance
(%t Material
c 137
c 138
c 139
c 140
c 141
c 142
c 143
c 144
c 145
c 146
c 147
c 148
c 149
c 150
c 151
c 152
c 153
c 154
c 155
c 156
c 157
c 158
c 159
c 160
c 161
c 162
c 163
c 164
c 165
c 166
c 167
0.0tu
0.01rr
0.04p
5P
0.01p
0.02p
0.02p
220P
1 00P
r 00P
lop
220P
0.015p
lop
0.015p
0.04p
0.047p
0.02p
0.01p
0.01p
1 00P
4.7 p
1 00p
470p
3.3p
1 000p
0.04p
1p
(Not used)
0.015p
0.01p
0.015p
25
25
25
25
25
25
25
25
25
25
10
25
50
10
50
25
50
25
25
25
25
10
10
16
16
16
25
50
50
50
50
+80
-20
+80
-20
+80
-20
* 0.5
+80
-20
+80
-20
+80
-20
t5
t5
t5
+50
-10
t5
t 10
+50
-10
t 10
+80
-20
t 10
+80
-20
+80
-20
+80
-20
t5
+50
-10
+50
-10
+50
-10
+75
-10
+50
-10
+80
-20
+75
-10
t10
t10
t10
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Electrolytic
Ceramic
Mylar
Electrolytic
Mylar
Ceramic
Mylar
Ceramic
Ceramic
Ceramic
Ceramic
Electrolytic
Electrolytic
Electrolytic
Electrolytic
Electrolytic
Ceramic
Electrolytic
Mylar
(uL & c.s.A.)
Mylar
( European &
Australian)
Mylar
(u L & c.s.A.)
* May not be used on some units. -17-

Ref.
No. Value
(F) '?l}i* Tolerance
(%t Material
167
168
C
c
c 169
c 170
c 171
c 172
c 173
c 174
c 175
c 176
c 177
c 178
c 179
c 180
c 182
c 185
c 186
c 201
c202
c 203
c 204
c 205
c 206
c 207
c 208
c 209
c 210
c 211
c212
c 213
c214
c 215
c 216
c 217
c 218
c 219
c220
c 221
c222
c 223
c224
c 225
0.01p
330p
0.047 p
680P
1 500P
0.22p
0.47 p
o.1p
47p
0.01p
0.01p
1 800P
0.22p
0.22p
o.1p
0.01p
0.02p
1p
1p
1 00P
1 00P
330p
220p
1 00P
1 00P
22p
22p
3.31r
3.3p
1p
1p
0.0047rr
0.0047p
0.015p
0.015p
0.15p
0.151r
0.001p
0.001rr
470P(YP)
470P(YP)
1p
50
16
50
50
50
25
25
50
16
50
50
50
50
50
50
25
25
25
25
25
25
25
25
25
25
t0
10
25
25
25
25
50
50
50
50
50
50
50
50
25
25
25
+50
-10
t10
t5
tb
t20
t20
t 10
+50
-10
t 10
t 10
t5
t 10
t 10
t 10
+80
-20
+80
-20
+75
-10
+75
-10
t5
t5
+50
-10
+50
-10
t5
t5
+50
-10
+50
-10
+75
-10
+75
-10
+75
-10
+75
,10
t10
t 10
t 10
t10
t 10
t 10
t 10
t10
t5
t5
+75
-10
r0
+Mylar
(European &
Australian)
Electrolytic
Mylar
Polystyrene
Polystyrene
Aluminum
Aluminum
Mylar
Electrolytic
Mylar
Mylar
Polystyrene
Mylar
Mylar
Mylar
Ceramic
Ceramic
Electrolytic
Electrolytic
Ceramic
Ceramic
Electrolytic
Electrolytic
Ceramic
Ceramic
Electrolytic
Electrolytic
Electrolytic
Electrolytic
Electrolytic
Electrolytic
Mylar
Mylar
Mylar
Mylar
Mylar
Mylar
Mylar
Mylar
Ceramic
Ceramic
Electrolytic
-18-
Ref.
No. Value
(F) '?i',i" Tolerance
(Y,l Material
c226
c 227
c228
c229
c 230
c231
c232
c 233
c 234
c 235
c 236
c 237
c 238
c 239
c 240
c 301
c 302
c 303
c 304
c 305
c 306
c 307
c 308
c 309
c 310
c 311
c312
c 313
c 314
c 315
c 316
c 401
c 402
c 403
c 404
c 405
1p
1 00P
1 00P
1p
1p
0.0012rr
0.0012p
0.012p
0.012p
0.01p
0.01rr
o.1p
o.1p
1 80P
1 80P
470P
470P
0.47 p
0.47 p
220p
220p
lop
1 0p,
47p
47p
2200p
2200p
o.1p
o.1p
1 00rt
220p
0.01p
0.01p
2200p
470p
1 000p
25
25
25
25
25
50
50
50
50
50
50
50
50
25
25
50
50
50
50
25
25
35
35
25
25
25
25
50
50
35
25
50
50
35
25
25
+75
-10
t5
+6
+75
-10
+75
-10
t 10
t10
t 10
tl0
t10
t10
t 10
t10
t5
+6
t 10
t 10
+75
-10
+75
-10
+50
-10
+50
-10
+50
-10
+50
-10
+50
-10
+50
-10
+50
-10
+50
-10
t 10
t 10
+50
-10
+50
-10
+80
-20
+80
-20
+50
-10
+50
-10
+50
-10
Electrolytic
Ceramic
Ceramic
Electrolytic
Electrolytic
Mylar
Mylar
Mylar
Mylar
Mylar
Mylar
Mylar
Mylar
Ceramic
Ceramic
Ceramic
Ceramic
Electrolytic
Electrolytic
Electrolytic
Electrolytic
Electrolytic
Electrolytic
Electrolytic
Electrolytic
Electrolytic
Electrolytic
Mylar
Mylar
Electrolytic
Electrolytic
Ceramic
Ceramic
Electrolytic
Electrolytic
Electrolytic

I
Ref.
No. Value
(F) ,ti,)i,. Tolerance
l%l Material
c 601
c 602
c 603
c 604
0.02p
0.02rr
0.15p
0.15rr
25
25
50
50
+80
-20
+80
-20
t10
t 10
Ceramic
Ceramic
Mylar
Mylar
CERAMIC FILTER
Ref. No. Description B/S Part
No. Mfr's
Part No.
CF 101 SEF.1().7 MA c-0550 P-140022
0rP-140030
COILS & TRANSFORMERS
Ref.
No. Description R/S Part
No. Mfr's
Part No.
L 101
L 102
L 103
L 104
L 105
L 105
L 601
L 602
T 101
T 102
T 103
T 104
T 105
T 106
T 107
T 108
T 109
T 110
T 601
T 601
FM Ant. Coil
FM Trap Coil
FM R F Coil
FM Trap Coil
FM Osc. Coil
(u L & c.s.A.)
FM Osc. Coil
( Eu ropean & Austral ian)
Balun Coil
AM Ant. Coil
FM rFT ( 7F-007)
FM rFT (10F-011)
FM IFT (10F.011)
FM rFT (10F-014)
AM Osc. Coil (0C-008)
AM rFT (0A-011)
AM rFT (0A-010)
AM rFT (0A-005)
AM rFT (04-012)
FM rFT (7F-008)
Power Transformer
(uL & c.s.A.)
Power Transformer
( European & Australian)
cA-3593
cB-2171
cA-4736
cB-2171
cA-4528
cA-0942
cA-0657
cA-7265
cA-7254
cA-7254
cA-7286
cA-4438
cA-7281
cA-7428
cA-7112
cA-7116
cA-7284
TA-0645
P-l 1 0036
P-360003
P-340015
P-360003
P-1 20029
P-1 20033
P-1 1 001 2
P-1 1 0084
P-140007
P-140011
P-l4001 1
P-14001 4
P-1 20008
P-l3001 1
P-l3001 0
P-1 30005
P-13001 2
P-140008
P-1 00373
P-1 00496
DIODES
Ref. No. Type No. R/S Part No. Manufacturer
D 101
D 102
D 103
D 104
D 't05
D 106
D 107
D 108
D 109
I N-60P
rs 21398
wG-713
rN-60P
tN-60P
wG-713
rN-60P
rN-60P
rN.60P
DX-0162
DX-0292
DX-0543
DX-0162
DX-0162
DX-0543
DX-0162
DX-0162
DX-0162
HITACH I
JBC
ITT
HITACHI
HITACHI
ITT
HITACHI
HITACHI
HITACHI
-19-
Ref. No. Type No. R/S Part No. Manufacturer
D 110
D 111
D 112
D 1',t3
D 114
D 115
D 116
D 401
D 402
D 403
D 404
D 405
D 406
lN-60P
rN.60P
rN.60P
tN.60P
rN.60P
rN.60P
wG-713
SR1K.2
or 1OD-l
or 10E-1
sRl K-2
or 100-1
or 10E -1
sRlK-2
or 100-1
or 10E -1
sRl K-2
or 100-1
or 10E -1
SB1K.2
or 10D-1
or 10E -1
wz-120
or R D-120
DX-0162
DX-0162
DX-0r62
DX-0162
DX-0162
DX-0162
DX-0543
DX-0475
DX-0475
DX-0475
DX-0475
DX-0475
DX-0536
HITACHI
HITACHI
HITACHI
HITACHI
HITACHI
HITACHI
ITT
UNIZON
INTER.RE TIHER
INTER.RESTIFIER
UN IZON
INTER-RESIIFIER
INTER.RE6flFIER
UN IZO N
INTER-RESTIFIER
INTER.REgflFIER
UN IZON
INTER.RESTIFIER
INTER.REGTIFIER
UN IZON
INTER-RECflFIER
INTER-RESTIFIER
JRC
NEC
FILTER
Ref. No. I Description B/S Part
No. Mfr's
Part No.
LPF 101 I LC Filter cA-3373 P-510006
FUSES
Ref.
No. Description R/S Part
No. Mfr's
Part No.
Fuse with Lead 250 V, 1 .5 A
(0uick type) (U L & C.S.A.)
Fuse with Lead 250V, 1.6A
(0uick type) (European & Australian)
Fuse with Lead 125V, 6 A
(0uick type) (U L & C.S.A.)
Fuse with Lead 250V, 6.3 A
(0uick type) (European & Australian)
HF-1112 P-250M2
P-250096
P-250106
P-250107
INTEGRATED CIRCUlTS
Ref:
No. Type No. B/S
Part No. Manufacturer
rc 101
rc 301 LA 3350
STK-435 MX-3215
MX-3447 SANYO
SANYO
LAMPS
Bef.
No. Description R/S
Part No. Mfr's
Part No.
PL2 Dial Lamp 12V, 150 mA L-0529
L-0529
P-240038
0r
P-240056

Ref.
No. Description B/S
Part No. Mfr's
Part No.
PL3
PL4
PL5
PL6
Dial Lamp 12V, 150 mA
Dial Lamp 12V, 150 mA
Meter Lamp 12V, 150 mA
Stereo Lamp t0V, 30 mA
L-0529
L-0529
L-0529
L-0529
L-0529
L-0529
P-240038
0r
P-240056
P-240fit8
0r
P-240056
P-240038
0r
P-240056
P-240074
0r
P-240098
LIGHT EMITTING DIODE
Ref. No. Type No. R/S Part No. I Manufacturel
PLl SR 106D (Red) L-0846 I NEC
METER
Bef. No. Description R/S Part
No.
AM/FM Signal Strength M-0251 P-230009
RESISTORS
Ref.
No. Value
(ohm) *ifiy' Tolerance
l%t Material R/S
Part No.
R 101
R 102
R 103
R 104
R 105
R 106
R 107
R r08
R 109
R 110
R 111
R r12
R 113
R 114
B 115
R 116
R 117
R 118
R 119
R 120
R 121
R 122
R 123
R 124
R 125
R 126
R 127
R 12d
R 129
R 130
R t3r
R 132
I()(1K
220
330
6.8K
33K
1.5 K
820
330
3.3K
10K
2.2K
330
(Not used)
22
4.tK
1K
10K
1.5K
12
27K
4.7K
3.3K
470K
47K
220K
15K
10K
3.3K
100
1.5 K
1K
330
%
Y-
%
%
1t
/4
%
Tt
%
Y4
%
To
Yt
%
1/4
%
%
%
Y-
Y4
Yq
%
Tt
%
%
1/t
%
Yt
1/t
Yo
%
1/^
r5
r5
t5
r5
+E
r5
l5
r5
r5
r5
+E
r5
r5
r5
r5
r5
r5
+E
r5
15
15
t5
r5
+6
r5
t5
i5
t5
+E
r5
t5
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carb on
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carb on
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
N EE-037 1
N EE-0149
N EE.01 59
N EE-0262
N EE-0324
N EE-0206
N E E-01 87
NEE.0159
N EE.0230
N E E-028 1
N EE.021 6
NEE-0159
N E E-0078
N EE-0247
N E E-01 96
N E E-028 1
N E E-0206
N E E-0067
NEE-0316
N EE-0247
N EE-0230
N EE-0423
N EE-0340
N EE-0396
N EE-0297
N EE-0281
N EE-0230
N EE-0132
N EE-0206
N EE-0196
N E E-01 54
* May vary from unit to unit.
Ref.
No. Value
(ohm) *rfiin' Tolerance
lY,l Material R/S
Part No.
R 133
R 134
R 135
R 136
R 137
R 138
B 139
R 140
R 141
R 142
R 143
R 144
R 145
R 146
B 147
R 148
R 149
R 150
R 151
R 152
R 153
R 154
R 155
R 156
R 157
R 158
R 159
R 160*
R 161
R 162
R 163
R 164
R 165
R 166
B 167
R 168
R 169
H 170
R 171
R 172
R 173
R 114
R 175
R 176
R 177
R 178
R 179*
R r80
R 181
R 182
R r83
R 184
R 201
R 202
R 203
R 204
R 205
56K
10K
33K
100
3.3K
18K
560
IK
22
3.3K
3.3K
2.2K
1K
330
1K
1K
10K
10K
47
470K
4.tK
1 00K
10K
33K
15K
1.8K
4.7K
27K
22K
3.3K
2.7K
1K
22K
10K
150
4.7K
4.7K
100
3.3K
3.3K
1K
1K
1K
1K
8.2K
6.8K
15K
180
3.3K
3.3 K
5.6K
5.6K
220K
220K
1K
1K
1 00K
%
%
Y"
Yr
%
Yr
%
Y4
%
%
Tt
%
Tt
Tq
%
T+
%
Tq
%
T+
%
%
T+
Tq
1/t
Tt
Y"
Y+
1/o
Ya
%
%
lo
1/4
To
1t
%
Yt
1l
t4
%
1/4
%
1/o
%
1/o
Y4
T*
%
1/4
%
1/4
Y+
%
To
/4
1/"
%
t5
t5
+E
r5
r5
r5
+E
t5
r5
r5
r5
+6
15
1.5
r5
15
15
15
t5
t5
r5
r5
r5
r5
r5
t5
15
r5
t5
15
r5
r5
r5
r5
r5
t5
r5
r5
15
i5
15
r5
t5
t5
r5
r5
15
t5
t5
r5
r5
15
r5
+E
15
+6
15
Carbon
Carbon
Carbon
Carbon
Carb on
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carb on
Carbon
Carbon
Carbon
Carbon
Carb on
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
N EE-0345
N E E-028 1
N E E-0324
N EE-0132
N E E-0230
N EE-0303
N EE-0176
N E E-0196
N EE-0078
N EE-0230
N EE-0247
NEE-0216
N EE-0196
NEE-0154
N EE-0196
N E E-0196
N E E-028 1
N EE-028 1
N E E-0099
N E E-0423
N EE-0247
N E E-037 1
N EE-0281
N E E-0324
N EE-0297
N EE-021 0
N EE-0247
N E E-0316
NEE-0311
N EE-0230
N EE-0224
N E E-01 96
NEE-031 1
N E E-028 1
N EE-0142
N E E-0247
N E E-0247
N EE.0132
N E E-0230
N EE-0230
N EE-0196
N EE.0196
N EE-0 1 96
NEE-0196
N EE-027 1
N EE-0262
N EE-0297
N EE-0144
N EE.0247
N E E-0247
N EE-0297
N EE-0297
N EE-0396
N EE-0396
N EE.0l96
N EE-01 96
N EE-037 1
-20-
This manual suits for next models
1
Table of contents
Other Realistic Stereo Receiver manuals

Realistic
Realistic STA-720 User manual

Realistic
Realistic STA-7 User manual

Realistic
Realistic STA-78 User manual

Realistic
Realistic PRO-2021 User manual

Realistic
Realistic PRO-2002 User manual

Realistic
Realistic STA-235 User manual

Realistic
Realistic STA-77L User manual

Realistic
Realistic STA-95 User manual

Realistic
Realistic STA-115 User manual

Realistic
Realistic STA-2100D User manual