Sansui R-5, R-5-L Service manual
STEREO RECEIVER
SANSUI
R=5/R=5L
• SPECIFICATIONS
Audio section <R-5/R-5L>
Power output
Min. RMS, both channels driv®ri,
more tr
Total harmonic distortion
Frequency response Oat 1 .,,attl
Input sensitivity and impedance (V
Output level (at 1 KHL1
Signal to noise ratio lsnort circaif
FM section
Tuning range
Usable sensitivity
50 dB quieting sensitivity
Signal to noise ra
Distortion 'at 6`i 011'I
Stereo separation
Antenna input impedance
0.08 % total har '
0
watts per chanr
2
PHODU .
T i E PLAY
TAPE- 00C:
PHO',K)
NAPE PLAN
It
I
HF
DIN..
S*err
Mono
it
rio
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ii
Into
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.
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ti
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from 40 'r,
no
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ct
ms
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ratsd
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10 to
3dB
1
Hz'r
n,
130
150 noV
,1nit
/3crB
.
r1U'18
b8 '0 100 MA,
10.840' (1.9pV)
)311
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7280
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ess
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nced
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c
)c
AM section <R
Tuning range
Usable sensitivity (bar antenna}
Signal to noise ratio
Others
Power voltage
F r U.S.A.
Power consumption
Dimensions
Weight.
MW, LW Section <R-5L>
Tuning range
Usable sensitivity (lia
Signal to noise ratio
anti
no
-
5>
. .....
_
.....
Carcitti
.
_
r
artarrna)
Others
Power requirements
Power consumption
Dimensions
Weight .
• Design
and apeeifications subject
i
mprovements.
•
In order to simplify the explanation
differ from the originals.
. . .
. .
_
. 530 to
....
.
.
50 )B
.
.
4
.
..1
1
. . . ..100,.to
.
.
132 r ii (0-1/117
x'11 ri
6.0 kit (13.2 )bs+. Uar/ed
_
MW.5 30 to 1,606
LW: 1507 to 3501_Hz
.
1,43 , 50 oB/'
LW
.....
43 d3
_
.
220, 240 V (550/60 Hat
_ __100 wa
430 iron 116-15/16") W
1
259
5.S ka (12.1 Jos) net
6.2 ku 113.7 t04] packed
to changes without notice for
1,505
50/
n (
/i
3
00pV/in)
dB
.0,'22(,/240`3!50/60Hat
20
V
(60 Hat
1
20 VA Rated
m (
ri
+9
32
6 15/16't 8/
s
(
(10-
7 lt.s
-1%4") H
5
1
H
kilt'
; 30oµ3 °m)..
/4") U
m (9-5/8°) 0
3 I,;
I11
60d8/r;
tt
m
m
mm
illustrations may sometimes
SANSUI ELECTRIC CO., LTD.
1. BLOCK DIAGRAM
1-1. Tuner Section of R-5
Loi
M
Antenna
e
<- _-_--__--,_L- _--_-_---
AM
Antenn
1-2. Tuner Section of R-5 L
dLi
FM
Antenna
a
o
a-J
MW/LW
eLi
FM Frontend
RF Amp
t
\
—
y
r
V
dFT,
-
—^
eLi
FM Frontend
dFT,
V
dLo
dL2
G fl-
`
^
eTI
eT3
MIX
-
do,
FM Local Osc
3
eIC, LAl240 is
doi
FM Local osc
MW
LW
z
eIC, LAl240
eTi
0
dTi
IFT
eCF,
6
rz
LIIEI1
dT,
oSia
e
3
IF Amp
IFAmp
dCFI
d03
Signal Indicator
Driver
3
.lr
}S
SIGNAL Indicator
p
dCFI
d03
d L3
eCF,
12
Ouadrature Detector
dCFz
slCi L81416
SEL1710K
Ouadrature Detector
dCFz
G L81416
sI
Signal Indicator
Driver
SIGNAL Indicator
SELI710K
dIC, LAI231
dVRi
Muting Adj.
z
dlC'
LAl231
,
6
dVR
Muting Adj.
6
e
Tune Indicator
Driver
s0i—s0e
D O Q
TUNE Indicator
SEL8819
6
e
i
9
s0I
Tune I
Driver
> 0 Q
TUNE Indicator
SEL8819
dTz
dTz
M PX Decoder
2
4
dIC2 9PCIt6IC
I
6
n
+8
eQ,
MPX Decoder
dICz
y PC116IC
2
{
6I3
1
+8
5 6 7
Is
dVR3
VCO Free Run Freg. Adj.
z
oS2,
FM MODE/MUTING
I
AUTO/ON
2 MONO/OFF
oSi^
AM
S 6
VCO Free run Freg. Adj.
oSzo
Muting/FM Auto
ON /Auto
2 OFF/Mono
oSie^
e0i
AM
+B(AM)
+SIAM)
+B
1-3. Audio Section of
Phono
C
L-CH
Aux
C------
Rec
___
Ploy
C
R-5/R-5L
5
Amp
jlCl
RIAA
--------------
------
R-5 Only
7
oSle
Selector
TunerOul
--------- J
Tuner Out
b
oS2b
Tape
Monitor
Volume
jVRla
Balance
Volume
I
2
jVR2
R-CH
Tone Control
—1
r
jVR3
Bass Treble
Amp
klCi
7
r
oS3b
Speakers
Switch
o$aa
o
Speaker
OB
A
i
2. ADJUSTMENTS
2-1. FM Adjustment (See Top View on Page 8)
Note: 1. Selector ..... .. .. ...... .. FM
STEREO SG
FM
AUDIO OSC
(1) FM IF, RF Adjustment and Dial Calibration
Note: 1. FM MODE/MUTING Switch
STEP
IF Coll Adj.
1.
Discriminator
2.
Coil Adj.
106 MHz 106 MHz
3.
Dial
Calibration
90 MHz
4.
Dial
Calibration
5.
106 MHz 106 MHz
RF Adj.
90 MHz
6.
RF Adj.
... ..... . ... ..MONO/Off
SUBJEC
FEED SIGNAL
FROM
Output 80 dB
Genescope
Output 80 dB
Genescope
ANT Input
65 dBf (59.8 dB)
1 kHz (100% MOD.)
FM SSG
90 MHz
ANT Input
65 dBf (59.8 dB)
1 kHz (100% MOD.)
FM SSG
ANT Input Minimum
value with sine wave
1 kHz (100% MOD.)
FM SSG
90 MHz
ANT Input Minimum
value with sine wave
1 kHz (100% MOD.)
FM SSG
TO
TP 1
F-3378
F-3389 F-3389
TP1
F-3378
F-3389 F-3389
ANT
terminal
300St
ANT
terminal
300t1
ANT
terminal
300&2
ANT
terminal
300St
5kHz LPF
DIST METER
/TV
MEASURE
OUTPUT
TP3
F-3378 F-3378
TP2
F-3378
Dial Pointer
OUTPUT
L-CH or R-CH
VTVM & Scope
Dial Pointer
OUTPUT dL3
L-CH or R-CH
VTVM & Scope
OUTPUT
L-CH or R-
VTVM & Scope
OUTPUT
L-CH or R-CH
C
VTVM.& Scope
SCOPE
O
j::
II
ADJUST
dT1
F-3389
dT2
F-3378
F-3389
Tuning Knob
-
dTC3
F-3378
F-3389
Tuning Knob
F-3378
F-3389
dTC2
H
dTC1
F-3378
F-3389
dLl, dL2
F-3378
F-3379
* Tuner Circuit Board R-5
GENESCOPE
O
IN
our
I
ADJUST FOR
Max. IF waveform
Steep linearity of
S curve
Make symmetrical
S curve
106 MHz
Max. Output
90 MHz
Max. Output
Max. Output
Max. Output
.....F-3378
grown
ground
i'
l
PO
Point A
Tvoa
REMARKS
R-5L ..... F-3389
(2) FM STEREO Adjustment
Note: FM MODE/MUTING Switch .... .. .. AUTO/ON
STEP
SUBJECT
PLL
1.
VCO Adj.
PLL 98 MHz
VCO Adj.
In case of using
Freq. Counter
2.
Muting
level Adj.
98 MHz
ANT Input 65 dBf
(59.8 dB) FM SSG
Pilot 19 kHz
(9% MOD.)
SUB 1 kHz
(100% MOD.)
STEREO SG
ANT Input 65 dBf
(59.8 dB)
FM SSG (No MOD.)
98 MHz
ANT Input 20 dBf
(14.8 dB)
SUB 1 kHz + Pilot
(100% MOD.)
STEREO SG
FEED SIGNAL
FROM
+
Pilot
TO
ANT
terminal
300E2
ANT
terminal
30052
ANT
terminal
300t
MEASURE
OUT PUT
Stereo indicator
TP4
F-3378
F-3379
Stereo indicator
or OUTPUT
L-CH or R-CH
VTVM & Scope
ADJUST
dVR3
F-3378
F-3379
dVR3
F-3378
F-3379
dVR1
F-3378
F-3379
ADJUST FOR
Light indicator
kHz
19
Stereo indicator
turns ON or
Output Signal
comes out
Hz
50
+
REMARKS
Adjust the VR
within center of
lighting level
* Tuner Circuit^Board R-5 ..... F-3378 R-SL ..... f —3369
2-2. AM Adjustment (See Top View on Page
Note: BAND SELECTOR .. .. .. .. .. .. . AM
AM SSG
____
(1) AM IF Adjustment & MW AM Dial Calibration
Note: BAND SELECTOR . . . .. .... .. . MW
1.
2.
3.
4.
5.
SUBJECT
IF Coil Adj.
600 kHz
Dial
Calibration
1400 kHz
Dial
Calibration
600 kHz
RF Adj.
1400 kHz
RF Adj.
FROM
Op
60 d6
Output 60
600 kHz
ANT Input 60 dB
400 Hz (30% MOD.)
AM SSG
1400 kHz
ANT Input 60 dB
400 Hz (30% MOD.)
AM SSG
600 kHz
ANT Input 50 dB
400 Hz (30% MOD.)
AM SSG
1400 kHz
ANT Input 50 dB
400 Hz (30% MOD.)
AM SSG
STEP
UNIT
AMANT REC
TAPE
urinal
minal
F-3378
F-3389
ANT
terminal
ANT
terminal
ANT
terminal
ANT
terminal
_--_
TO
8) <R-
VTVM
IN OUT
(Ter-
5/R-5L>
SCOPE
V
_
_
OUTPUT
TP5
F-3378
F-3389
Dial Pointer
OUTPUT
L-CH or R-CH
VTVM & Scope
Dial Pointer
OUTPUT
L-CH or R-CH
VTVM & Scope
OUTPUT
L-CH or R-CH
VTVM & Scope
OUTPUT
L-CH or R-CH
VTVM & Scope
!
e
eT2
T2
F-3378
F-3389
Tuning Knob
eT1
F-3378
F-3389
Tuning Knob
eTC2
F-3378
F-3389
Bar Antenna
(
MW) eLl
eTC1
F-3378
F-3389
Max. Waveform
600 kHz
Max. Output
1400 kHz
Max. Output
Max. Output
Max. Output
* Tuner Circuit Board R-5 ..... F-3378 R-5L ..... F-3389
(2) LW AM
Dial Calibration <R-5L>
Note: BAND SELECTOR . .... .. .. ... LW
STEP
1.
2.
3.
4.
SUBJECT
170 kHz
Dial
Calibration
300 kHz
Dial
Calibration
170 kHz
RF Adj.
300 kHz
RF Adj.
170 kHz
ANT Input 60 dB
400 Hz (30% MOD.)
AM SSG
300 kHz
ANT Input 60 dB
400 Hz (30% MOD.)
AM SSG
170 kHz
ANT Input 50 dB
400 Hz (30% MOD.)
AM SSG
300 kHz
ANT Input 50 dB
400 Hz (30% MOD.)
AM SSG
FE
FROM
E
D SIGNAL
TO
ANT
terminal
ANT
terminal
ANT
terminal
ANT
terminal
MEASURE
OUTPUT
Dial Pointer
OUTPUT
L-CH or R-CH
VTV
Scope
M
&
Dial Pointer
OUTPUT
L-CH or R-CH
VTVM & Scope
OUTPUT
L-CH or R-CH
VTVM & Scope
OUTPUT
L-CH or R-CH
VTVM & Scope
ADJUST
Tuning Knob
eT3
F-3389
Tuning Knob
eTC4
F-3389
Bar Antenna
(LW)
(Right Side
of core eLl )
eTC3
F-3389
ADJUST FOR
170 kHz
Max. output
300 kHz
Max. Output
Max. Output
Max. Output
REMARKS
Cc7
•NEW MEASUREMENT FOR FM.
Input signal level under the provision of IHFM-T-200,
urement method is indicated by ayailable power ratio
obtain approximate available power ratio "dBf", abstract 0.8 from
attenuator indication of general FMSG (open load indication type);
however, the former measurement, IHFM-T-100 is designated to-
gether too.
The way of modulation on IHFM-T-200 is shown below.
a
new meas-
• "dBf To
'
•BLOCK DIAGRAM OF IC
opPC1161C
FM
MONO
FM STEREO
modulation
frequency
1000 Hz
1000 Hz
modulation
mode
SUB
modulation
Pilot
Pilot + SUB
• The relation between the standard input 65 dBf of IHFM-T-200
and the former indication "dB" is shown below.
FM SSG 65.8dB
FM SSG
1--
.Abbreviations
- - - _ - _ _
- 6dB
ANT Input 59.8dB
ANT HIM
<Equipment>
AM FM Generator Oscilloscope
AM Standard Signal Generator . . .
FM Standard Signal Generator
. . ....
.
FM Stereo Generator
Oscilloscope.
..........
AudioOscillator
DistortionMeter
.
. . .
.....
.
. . . . .... .
. .
. ......
. .
..
....
. . ..
......
....
..
. ....
...... . .
. . ...
..
..
. .
. . . .
..
...
. .
Genescope
.
AM SSG
FM SSG
Stereo SG
Scope
Audio Osc.
Dist. Meter
fuctor
100%
UNIT
9%
100%
o LAl231
IF Amp./Llmitter
2I
3
I
4
IF Amp
Mute
o LA 1240
11
Voltage Regulator
1st 2nd 3rd 4th 5th 6th
Level Level
Det.
Det.
Signal Meter
Drive
15
13
Level
Det.
Quadra
Llmltte
Inver
ter
I6
8
<Others>
. .
.... . .
Antenna.
Modulation.
.
. .
...
Total Harmonic Distortion
. . .... . .
.
....
. . .. .
. . . .
.....
..
. .
..
. . .
. .
ANT.
..
MOD.
T.H.D.
.
..
I
3. PARTS LOCATION
3-1. F-3378 Tuner Circuit Board
PARTS LIST
(Stock No.00637201)
°Since some of capacitors and resistors are omitted from
parts lists in this Service Manual, refer to the new Com-
mon Parts List for capacitors & resistors.
<R-5>
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