NAD 4300 User manual

NAD SERVICE
__MANUAL
-a
MONITOR
SERIES
4300
STEREO
TUNER

C
NAD
4300
SERVICE
MANUAL
NOTE:
This manual covers
all
versions.
A:
U.S.A.
Al:
Canada
B:
U.K.
Bi
:
Austraha
C:
EUROPE
and
others
Cl:
W-Germany
TABLE
OF
CONTENTS
PAGE
LOCATION
MAP
2
SPECIFICATION
3
INTERNAL
VIEW
4
SUGGESTED INSTRUMENTATiON
HOOKUP
5
FM
ALIGNMENTS
6-9
AM
ALIGNMENTS
101l
WIRiNG DiAGRAM
12-13
P.C.B. LAYOUT
DIAGRAM
14—15
SCHEMATIC
DIAGRAM
16-17
EXPLODED
VIEW
PARTS
LIST
18-19
EXPLODED
VIEW
20
ELECTRICAL
PARTS
LIST
21-23

AM
Tuner Section
Usable
sensitivity.
Selectivity.
Image
rejection.
Mono, —30
dB
THD
÷
N:
Mono, 50
dB
S/N:
Stereo, 50
dB
S/N:
Mono, 60
dB
S/N:
Stereo, 60
dB
S/N:
Alternate
channel:
Adjacent
channel:
Mono:
Stereo:
Mono:
Stereo:
All
versions
except
USA.
50
sec.
de-emphasis
0.83
tV
1.3V
14.5,uV
3.2
tV
48
IN
250
jI
V/meter.
55
dB.
at
±
9
kHz
45
dB.
USA
version
only.
75
isec.
0.8.zV
1.OpV
l3pV
2.5
1 iV
42
iN
43.5
x
8.7
x
29.3
cm.
17.1
x3.4x11.51n.
4.55 Kg./lOIb.
5.75
Kg.112
lb.
10 oz.
50/60
Hz
at
110, 120,
220
or
240
VAC.
24W.
REAR
PANEL
1.
AM
Rod
Antenna
5.
Output Jacks.
2. AM
Antenna
Terminals.
6.
AC
Convenience
Outlet
(not
in
U.K.
model).
3.
FM
Antenna
Input. 7. AC
Line
Cord.
4.
Output
Level Control.
0
C
3
1
2
SPECI
FICATIONS
FM
Tuner
Section
Input
sensitivity
(300
2)
Capture ratio at
25,
45
&
65
dBf.
AM
rejection.
Selectivity
Image
rejection.
R.
F.
intermodulation.
I. F.
rejection.
SCA
rejection.
Pilot
suppression
(19
+
38
kHz).
THD at
100
%
modulation,
S/N
ratio,
A-weighted, 65
dBf.
Frequency
response,
15-
15
kHz.
Stereo separation
(FM
NR
off),
FRONT
PANEL
1.
Power.
2.
Station
Pre-sets.
3. Memory
Enter.
4.
Tuning
Display.
5.
FM
Stereo
Indicator.
6.
IF
Narrow
Indicator.
4
5
7
6
7.
AM/FM.
8.
I F
Narrow.
9.
FM
NR
Oft.
10.
Mono.
11. Tuning.
<2.1
dB.
>70
dB.
76
dB.
8dB.
110
dB.
73
dB.
102
dB.
80
dB.
69
dB.
1
kHz
0.08
%
0.07
%
84
dB.
77
dB.
100
Hz
-6
kHz
0.15%
0.35%
<2.1
dB.
>70
rIB.
76
dB.
8
dB.
110
dB.
73
dB.
102
dB.
80dB.
72
dB.
1kHz
lOOHz-6kHz
0.07%
0.15%
0.05
%
0.35
%
85
dB.
78
dB.
±
0.5
dB.
50
dB.
35
dB.
250
jI
V/meter.
()
60dB.
at
±
10
kHz
45
dB.
±
0.5
dB.
1
kHz:
50dB.
3OHz-l5kHz:
35dB.
NAD
tuNiNG
Monrior
Senes
Stereo
Tuner 4300
r
I
Eruese
ILJ.
III
OMSTENE’.)
FM
NARFOW OFF
.o
;
LL°_-----
IFNA000W
Physical
Specifications
Dimensions (width
x height
x
depth)
Net
weight
Shipping
weight
Power
requirements
1
1
2
3
4
56
78
910 11
()
3

INTERNAL
VIEW
4

0
()
FM ALIGNMENT
NECESSARY INSTRUMENTATION
• FM Generator
(less than
0.05%
THD.)
• Stereo
Modulator
(less
than
;0.05%
THD.,
more than
50dB Sep.)
• Audio
Generator
(not
necessay
if FM Generator
has
built-in
sweep,
e.g.,
SOUND
TECHNOLOGY
ST 1000A
and
ST
iO2OA)
•
AC VTVM’s
(or
one with a
LeftRight
switch)
•
THD
Analyzer (resolution
less than
0.1%)
• Oscilloscope
(5mV
or
better sensitivity,
X input
capability)
•
Frequncy
Counter
• VOM or
DMM (high
impedance,
must
read in
mV)
•
75 ohm
Dummy Antenna
IMPORTANT
1)
Before alignments commence,
release
IF
NARROW
and
MONO
switches
(out),
Switch FM NR
off
(in).
2)
IF FM
Generator
is not
synthesizer-type,
be sure
to check
its
frequency with
FREQ
counter
when adjusting
detector
and
multiplex
decoder circuits.
A. SYNTHESIZER FREQUENCY
1. Connect
Frequency
Counter between
TP-104
and ground.
2.
Tune to 98MHz
(No
RE
input
needed).
3. Adjust
C-201
so that
the local
oscillator frequency shown
by the frequency
counter reads
108.700MHz.
TOLERANCE:
108.700MHz
+/—2KHz
B. FRONT-END
ALIGNMENTS
Alignment
of the
front-end should
only be necessary
after repair
to the front-end
or
crystal oscillator
circuits.
a)
TUNING
VOLTAGE
It
is essential
to check
tuning voltage
before aligning
the
rest
of
front-end.
1.
Connect
DMM between
TP-105
and ground.
2.
Tune to
88MHz, and
adjust
L-6
if
the voltage
is incorrect.
TOLERANCE:
3.6V
+/—0.5V.
3. Tune
to 108MHz
and
confirm
that the voltage
is within
the
following
specification.
SPECIFICATION:
21-25V.
b)
TRACKING
1. Connect
FM Generator
(150KHz
sweep,
100V
output)
to 75ohm
antenna
input
and Detector Probe
to Pin 1
of
IC
102 with ground
to the tunershield.
2. Set
tuner to 106MHz,
entor
into Preset
8, and tune
the generator
so that curve
appears
on Oscilloscope.
3.
Adjust
C-2, C-9,
C-li
and
C-14 for maximum
curve
height
on
the oscilloscope
while
reducing
RF input
to keep
entire
curve on
display.
4. Set
tuner
to 90MHz,
enter
into Preset 1,
and
tune the
generator
so that curve
appears
on the oscilloscope.
5.
Adjust
L-1, L-2,
L-3
and L-4
for maximum
curve height.
6. Repeat
above
steps 2, 3,
4 and
5
(use
Preset
1 and
8) till
both frequencies
are at
maximum
curve
height.
SUGGESTED INSTRUMENTATION
HOOKUP
ó
o
OSCILLOSCOPE FM GENERATOR
AUDIO OSC
1
0 0
I
USE
ONL’? IF FM GENERATOR
WITH
BUILT-IN
SWEEP
UNAvAILABLE
I
WITH
BUILT-IN
SWEEP
lE: ST 1000A
DISTORTION METER
I\1
DISTORTION
OUTPUT
SCHEMATIC
DIAGRAM
OF
DETECTOR
PROBE
Cl
02
330p
00
•o
4.
00
Diodes
should be
point-contact
FROM
OUT
germanium;
Some
commonly
TUNER
C>’
TO scoc
available
types
are: 0A80
0A8
1
AA1
19
1N60
1
N34
1N22
PICTORIAL
DIAGRAM
OF
DETECTOR
PROBE
Ri
CENTER
LEAD
TOPINI
Cl
02
jjEEEE
SCOPE
Keep
leads
as
shortas
possible,
to
minimize
stray
signal
pickup.
AT
FRONTEND
5
6

C.
IF
ADJUSTMENT
1.
Set
tuner
to 98MHz
approx.
(the
tuner
must
be tuned
to
an unoccupied frequency),
and
tune FM
Generator
to
display
a
curve
on
Oscilloscope.
2.
Adjust
L-5 and
L-101
for maximum and
symmetrical
output
curve
on
the oscilloscope display,
using as
little
input as
possible.
D.
DETECTOR
ALIGNMENT
1. Disconnect Detector Probe
from
tuner
and Oscilloscope,
and connect
tuner
output
to the oscilloscope and
Distortion
Analyzer.
2.
Connect
DMM
across
TP-101
(—)
and
TP-102
(+).
3.
Tune to
98MHz
and
feed
1
mV
from
FM
Generator
(Modulate
1
KHz
100%)
to
75ohm
antenna
input.
4.
Adjust
L-102
Secondary for lowest
THD.
SPECIFICATION:
less
than
0.12%
(in
MONO).
5.
Adjust
L-102
Primary
for
OV
reading
on
DMM.
TOLERANCE:
+1—
5OmV.
6.
Repeat
above
steps
4 &5
till no
further
improvements.
E.
SIGNAL
METER
LEVEL
1. Tune
to 98MHz
and
feed
5V from
FM
Generator
to
75ohm
antenna
input.
2.
Adjust
R-127
so
that
the
second
LED
of signal
strength
indicator
is
just lit
up.
oc
CC)
00
6.
Check
and confirm
that
separation
under
wide
IF
bandwidth
is
within
the
following
specification.
SPECIFICATION:
more
than
50dB.
7.
Switch
IF
NARROW button
(in),
and
modulate
Left
(or
Right)
channel
only. Adjust
R-403
for
minimum
output
on
Right
(or
Left)
channel
VTVM
and
oscilloscope.
If
the
leak
outputs
on
opposite channels are
different,
readjust
R-403
so
that readings
become
same
in
both
left
and
right
channels.
8.
Check
separation under
narrow
IF bandwidth
and confirm
it is within
the
following
specification.
SPECIFICATION:
more
than
40dB.
H.
FM NR
CIRCUIT
Confirm
that
FM NR
button
is at OFF
position
(in),
at first.
1. Tune to
98MHz
and
feed
1 mV
with
100%
modulation
into
75ohm
antenna
input
and
set
reference
for
S/N
measurement.
With
reference
set,
cancell
the stereo
modulation and
leave
pilot
tone
only.
2. Adjust
the
attenuator
of FM
Generator
so
that
S/N
ratio
reads
50dB.
3.
Switch
FM
NR on,
and
adjust
R-148
so
that S/N
is
improved
by
8dB.
4.
Switch
FM
NR off,
and
adjust
attenuator of FM
Generator so that
S/N ratio
reads
60dB.
5.
Switch
FM
NR
on,
and
confirm
that
S/N
is
improved
by
approx.
2dB.
F.
STEREO
SWITCHING THRESHOLD
1.
Modulate
FM Generator 1 KHz
100%
Left
only,
pIus
19KHz
pilot
8-10%.
2.
Increase
FM
Generator
level
upwards
from
0
and
adjust
R-126
so
that stereo
light
turns
on
and
audio
outputs,
as
watched
on
VTVM’s
and Oscilloscope,
switches
to one
channel
only
at
5V
input
level.
TOLERANCE: +3V.
Note
that,
when
turning
input
level
down,
the
unit
will
switch
into
mono
at a
lower
level,
typically
3.5pV.
G.
STEREO
DISTORTION AND SEPARATION (WIDE/NARROW
IF
BANDWIDTH)
1.
Tune
to
98MHz
and
feed
1 mV
from
FM
Generator
to
75ohm
antenna
input.
2.
Modulate
Left
(or Right)
channel
only,
and adjust
L-5
and
L-101
slightly,
so that
the
distortion
on
Left
(or Right)
channel
becomes
minimum.
3.
Check
distortion
at
stereo
operation under
wide
IF
band-width.
SPECIFICATION:
less
than
0.12%,
stereo
L+R.
less
than
0.08%,
stereo
L
only.
less
than
0.08%,
stereo
R
only.
less
than
0.08%,
stereo
L—R.
4.
Next,
switch
IF NARROW
button
(in)
and
check
distortion
under
stereo
signal
input.
SPECIFICATION:
less
than 0.8%,
stereo
L
only.
less
than 0
8%
stereo
R
only
less
than
0.8%,
stereo
L-R.
5.
Reset
IF
bandwidth
to
wide
position
again
and
modulate
Left
channel
only. Adjust
R-141
for
minimum
output
on
Right
channel
VTVM
and
oscilloscope.
Next,
modulate
Right
channel
only
and
adjust
R-141
for
minimum
output
on
Left
channel
VTVM
and
oscilloscope.
If
the leak
outputs
on opposite channels
are
different,
readjust
R-141
so
that readings
become
same
in both
channels.
O
C.
O
0
0)
0
7
8

e
C9
L3
L6
L2 Cli
L51
LiOl
I
R403
I
1C102
I
(UNDER THE’
L
IF
B/W
P.C.P
C201
0
TP1O5
.‘
e
I
R127
TP1O1
TP1O2
L102s
R148
LlO2
Rl26
Rl41
TP404
9

AM ALIGNMENTS
OSCILLATOR.
1
Connect
DMM
to
TP-103
and
ground.
2
Tune to
1710
kHz.
Enter
into preset
1.
Adjust C-158
for
reading
of
31
±
0.5
VDC.
3
Tune
to
520
kHz.
Enter
into
preset
2.
Adjust L-105
for
reading of
1.8
±
0.1
VDC.
4
Repeat
above
steps
2
and
3
until
within
tolerances.
ANTENNA,
IF
1
Swing
antenna away
from
chassis.
2
Connect DC
voltmeter
to
centertap,
R-210
and
ground.
3
Tune to station
of
moderate strength,
near
600
kHz.
Enter
into
Preset 3.
Adjust L-901
for
maximum
reading on
meter
(Use
non-interactive
tool,
such
as
plastic
or
wooden
stick).
4
Adjust L-106
and
L-107
for
maximum
reading on
meter.
5
Tune to
a
station
of moderate
strength
near
1400
kHz.
Enter
into
Preset 4.
Adjust C-153
for
maximum
reading on
meter.
6
Repeat
above steps
3 and
5
until
no
further
improvement
is seen.
9
kHz,
10
kHz WHISTLE
FILTERS
1
Tune
to
a
quiet
spot
(a
clear
frequency).
2
Connect audio
oscillator
to
base,
Q-1
12
(isolate
with
0.1
- 1.0
iiF
capacitor).
3
Connect
AC
VTVM
(or
Scope) to
R-220
and
ground.
4
Set
audio
oscillator
to
10
kHz
(±
50
Hz)
1
V.
Adjust FL-104
for
minimum
meter
reading.
5 Set
audio
oscillator
to
9
kHz
(±
50
Hz)
1
V.
Adjust FL-105
for
minimum meter
reading.
D
SIGNAL
METER
1
Tune
to
1,000
kHz
and
feed 2.5
mV
to
the
antenna
terminals.
2
Adjust R-210 so
that
the fifth
LED
of
signal
strength
meter lights
up.
0
A
B
C
L901
L107
C
C
0
L106
Q112
FL1O4
FL1O5
R220
C153
C158
TP1O3
R210
in
11

(0
WIRING
DIAGRAM
(A
& Al
Versions, 120V
AC
with AC
outlet)
4:
I
(4
AM BAR ANTENNA
ANTENNA ThRMINAI.
RECEPTACLE
IF
B/w
SELECTOR
P.C.B(000IA)
POWER
TRANSFORMER
Jios
POWER
CORD
ROTARY SENSOR P.C.B
{NOOA)
VOLTAGE
SELECTOR
(ZOO4AI
POWER
INDICATOR
P.C.R
(M1O8A)
LED
DISPLAY
P.C.B(0013A)
PRESET SELECTOR P.C.B (SOS5A)
POWER SWITCH
12 13

____—
.
I - --
-
•i*
WIRING
DIAGRAM
(B,
Bi,
C
& Cl Versions, 220/240V
AC
less AC
outlet)
AM BAR
ANTENNA
ANtENNA
TERP.ENAL
• •
,
S S
•
IF B/w
SELECTOR
P.C.B(0001A)
POWER
TRANSFORMER
“Os
ROTARY SENSOR
P.C.B
(NOO1A)
VO4TAGE SELECTOR
IZOO4A)
I
POWER iNDICATOR PC.B
(M1ORA)
LED DISPLAY
PC.B(DOISA)
POWER
CORD
PRESET SELECTOR
P.C.B
)S085A)
POWER
SWITCH

P.C.B.
LAYOUT DIAGRAM
FM
FRONTEND
P.C.B.
ASS’Y
(F1O9A)
IF
B/W
SELECTOR
P.C.B.
ASS’Y
(0001
A)
r 01
-.-
5
_______‘IMII
1I
I
tEl
--
-‘I-
I
VOLTAGE
SELECTOR P.C.B.
ASS’Y
(ZOO4A)
r 2
*
Il®
iiovri]€_
‘I®:
2OV
I
220V
I
240V
I
POWER
INDICATOR
P.C.B. ASS’Y
(M1O8A)
ROTARY SENSOR
P.C.B.
ASS’Y
(NOOl
A)
r
?2-222o-0T
TUNER
P.C.B.
ASS’Y
(1024A)
—
Q
-
L9
r
LED
DISPLAY
P.C.B.
ASS’Y
(DO13A)
i
___________
o33
‘
iiiitti
•
j
—w=-
PRESET
SELECTOR
P.C.B.
ASS’Y
(S085A)
)
I
0
14
15

SCHEMATIC DIAGRAM
NAD
4300
TUNER
MARX OF RESI5100
Eli SEBLE
—C——
114 W
—s—— ‘ 12 w
MARK
OF CAPACITOR
—)
— ELECT.
—)
LOW LEAK
FILM
—I
ISA
L901
11.5101
(C
(I
(C
EISA
,;.
J4**J
0
___
SIE55O(
:
____
‘®:
IDO13A
6’
ClAP
TABOOPAP
Ill
I
j
___
RT2RT3A
16
17

1
63-6280-0-0
2
62-1111-0-0
3
62-1111-1-0
4
62-3480-0-0
5
63-5
1 7
0-0-0
6
62-1110-0-0
7
62-1110-1-0
8
62-2320-0-0
9
92-2103-0-0
11
7
1-2625-0-0
12
71-2622-0-0
13
71-2621-0-0
14
71-2623-0-0
15
71-2619-0-0
71-2620-0-0
16
71-1912-0-0
17
71-3111-0-0
20
11-5121-0-0
21
23-1327-0-0
23-1
327-3-0
23-1327-2-0
23-1327-1-0
22
85- 258-0-0
85- 260-0-0
85-
240-0-0
85-
259-0-0
85- 235-0-0
AM
BAR ANTENNA
POWER
TRANSFORMER
(A)
POWER
TRANSFORMER (Al)
POWER
TRANSFORMER (B,
Bl)
POWER
TRANSFORMER
(C, Cl)
POWER
CORD
(A)
POWER
CORD
(Al)
POWER
CORD
(B)
POWER
CORD
(81)
POWER
CORD
(C,
Cl)
37
0001A
38
1024A
38-1
81-2334-0-0
38-2
74-3111-0-0
38-3
74-3112-0-0
38-5
41-
689-0-0
39
Pt8
o(q/
WASHER
(TOOTHED
LOCK B
10)
WASHER
(PLAIN
9-14-0.5)
(1
)
EXPLODED VIEW
PARTS
LIST
Ref.
No.
Parts
No.
Description
FRONT
PANEL
PUSH BUTTON
- SELECTORS
(BLACK)
PUSH
BUTTON
- ON/OFF
(GREEN)
PUSH BUTTON
FRAME -
SINGLE
HOLE
TUNER
WINDOW
PUSH BUTTON
- MEMORY
(BLACK)
PUSH
BUTTON
- ENTER
(RED)
TUNING
KNOB
FOOT
10
63-1844-0-0
LABEL:
THIS
IS
NOT
A HANDLE
Ref.
No.
Parts
No.
Description
FRONT
CHASSIS
SIDE CHASSIS
(U
SIDE
CHASSIS
(R)
SUBCHASSIS (FRONT
TO
REAR
SUPPORT)
REAR
PANEL
(A,
Al)
REAR
PANEL
(B,
Bl, C,
Cl)
LED
INTERRUPTER
CABINET
C
C
IF
8 /w SELECTOR
P.C.B.
ASSEMBLY
TUNER
P.C.B.
ASSEMBLY
FUNCTION
SWITCH
BANK
(4 SWITCHES)
HEAT
SINK
HEAT SINK
38-4
82-2130-0-0
RCA
CONNECTOR
- SINGLE
ROTARY
POTENTIOMETER
-
OUTPUT
LEVEL
CONTROL
FM FRONTEND
P.C.B.
ASSEMBLY
40
TAPPING
SCREW
(PHILLIPS
HEAD
3
x
6
BLK)
41
TAPPING
SCREW
(PHILLIPS HEAD
3
x
8
BLK)
18
71-3110-0-0
BOTTOM
COVER
19
71-1892-0-0
BRACKET-
OUTPUT
LEVEL CONTROL
42
43
44
45
46
47
48
49
50
51
MACHINE
SCREW
(PHILLIPS
HEAD 3x6
BLK)
TAPPING
SCREW
(PHILLIPS
HEAD
3
x
6
Cr)
TAPPING
SCREW
(WASHER
HEAD
3
x
6
Cr)
MACHINE
SCREW
(PAN
3
x
6 Cr)
MACHINE
SCREW
S(WASHER
HEAD3x6Cr)
MACHINE
SCREW
(WASHER
HEAD
3
x
6
Cr)
MACHINE
SCREW
(PHILLIPS
HEAD
3
x
6)
TAPPING
SCREW
(PHILLIPS HEAD
3
x
8
Cr)
CABI
NET SCREW
WITH
WASHER
(4
x
6BLK)
TAPPING
SCREW
(FLAT
HEAD
3
x
6
Cr)
52
OUTPUT
CONTROL
NUT (HEXAGON 9-11-2)
53
HEXAGON
FLANGE
NUT (4-7-4.2)
54
HEXAGON
NUT(10-14-2)
55
56
23
62-3332-0-0
BUSHING
- AC
POWER CORD/AM
ANTENNA
24
63-1843-0-0
LABEL-CAUTION
FOR
FUSE
(A, Al)
25
63-1872-0-0
MASKING
PLATE
26
87- 289-0-0
TUNING SHAFT
27
87-3247-0-0
HEXAGON
STUD
28
87-3251-0-0 P.C.B.
SUPPORT
29
82-2171-0-0 AMANTENNATERMINAL
29-1
87-3249-0-0
PLASTIC
RIVET
30
82-2161-0-0
RECEPTACLE
(A,A1)
31
81-2320-0-0
POWER
SWITCH
32
M1O8A
POWER
INDICATOR
P.C.B.
ASSEMBLY
33
S085A
PRESET
SELECTOR
P.C.B.
ASSEMBLY
33-1
71-1911-0-0
LEDGUIDE
33-2
81 -2336-0-0
MEMORY
SWITCH
BANK
(8
SWITCHES)
33-3
81-2335-0-0
ENTER
SWITCH
34
DO13A
LEDDISPLAYP.C.B.ASSEMBLY
34-1
SL-5653
LED
INDICATOR
35
ZOO4A
VOLTAGE
SELECTOR
P.C.B.
ASSEMBLY
36
NOO1A
ROTARY
SENSOR
P.C.B. ASSEMBLY
36-1
TLP8O1
PHOTO
INTERRUPTER
18
19

LU > LU 0 -J 0 x
LU
0 CN
0

ELECTRICAL PARTS LIST
NOTE:
This is not
a
complete electrical parts Ist.
POWER
INDICATOR P.C.B. ASSEMBLY: M1O8A
(EXPLODED
VIEW REF. NO.
32)
SYMBOL
NO.
PARTS NO. DESCRIPTIONS
D909
SLP246B LED
(GREEN)
PRESET SELECTOR P.C.B.
ASSEMBLY:
S085A
(EXPLODED
VIEW
REF. No. 33)
SYMBOL NO. PARTS NO.
DESCRIPTIONS
D901-D908 LN349GPH LED
(GREEN)
LED
DISPLAY
P.C.B.
ASSEMBLY: DO13A
(EXPLODED
VIEW REF. NO.
34)
SYMBOL NO.
PARTS NO.
kD301 TD63O1AP
2SC1
815
2SA1 015
SL-5653
LN449YPH
0301, Q302
0303
-
LED3O1
D301, D302
DESCR I PTIONS
INTEGRATED
CIRCUIT
TRANSISTOR
0
C)
0
0
0
0
LED
INDICATOR
LED
(AMBER)
VOLTAGE SELECTOR P.C.B. ASSEMBLY: ZOO4A
(EXPLODED
VIEW REF. NO.
35)
SYMBOL NO. PARTS NO. DESCRIPTIONS
R902 2.7Mc, 1/2W CARBON
RESISTOR
ROTARY SENSOR P.C.B. ASSEMBLY: NOO1A
(EXPLODED
VIEW REF. NO.
36)
SYMBOL NO.
PARTS NO. DESCRIPTIONS
P1901, P1902
TLP8O1A PHOTO
INTERRUPTER
IF BIW
SELECTOR P.C.B. ASSEMBLY:
QOO1A
(EXPLODED
VIEW REF. NO. 37)
SYMBOL
NO.
PARTS
NO.
DESCRIPTIONS
IC4O1 TA7O6OAP INTEGRATED
CIRCUIT
IC402
LA1 222
Q401 2SC1815 TRANSISTOR
D401-D403 1SS241 DIODE
R403 41 -791
VARIABLE RESISTOR, 5K-B
CF4O1 -CF403 19-159 (SFE1
0.7MZ2K-A)
CERAMIC FILTER
CF404 19-157(SFE1O.7MLK-A)
21

C
TUNER P.C.B.
ASSEMBLY:
1024A
(EXPLODED
VIEW
REF.
NO.
38)
SYMBOL
NO.
IC1O1
IC 102
1C103
1C104,
IC1
11
1C105, 1C108
IC
109
IC1
10
1C112
CR3, 1C114
1C115
1C116
1C117
1C118
1C119
c
Q101,0102
Q103,
0104, 0107,0112
0115,0116,
0120,
Q121
0122,
Q123, 0124
0105,
Q114,
0117,0118
Qi 09
QuO,
0111,
0113
0119
DiOl, D102, D103,
D104
D105-D107,
Dili-D115
D118-D122,
D125
DuO
Dl 24
Di 26
D127, D129, D130,
D132
D128, D131
Li 01
L102
Li 04
Li
05
Li
06
Li
07
Ci03,
C125, C173,
Ci89
Ci26,
Ci27
Ci53
Cl
58
Ci
87
Cl 88
Ci 96
C201
C228
PARTS NO.
LA1
235
LA1
222
LA3401
uPC4558C
u PC4570C
LA1245
TD61 04P
TC9147BP
TC4O1
1
BP
LB
1450
BA61O4
78M05A
79M12A
78M 1 2A
2SA1 015
2SK3OA
2SK212
DS442BT
KV1 226Y
GZA11Z
GZA36X
SRiK
DBA1OB
13-533
13-536-i
-0
15-167
i2-564
13-347
13-348
50V, 0.22uF
SOV,
luF
36-133
36-134
50V,
0.33uF
50V,
0.1
uF
5.5V,
0.047F
36-136
FM
DETECTOR
COIL
CHOKE
COIL,
l2OuH
AM
OSC
COIL
lET
COIL
(455KHz)
450KHz
MATCHING
COIL
ELCTROLYTIC
CAPACITOR
LOW
LEAKAGE
TRIMMER
CAPACITOR,
2-7pF
3-iipF
ELECTROLYTIC
CAPACITOR
LOW
LEAKAGE
MEMORY
BACKUP
CAPACITOR
TRIMMER
CAPACITOR,
5.2-3OpF
1SV55
ii -437
11-438
11-439
11-440
13-539
12-565
15-i 66
15-172
36-134
82-2i 62
82-2174
DIODE
FM
ANTENNA
COIL
FM
RF
COIL
IFT
COIL
OSC
COIL
CHOKE
COIL,
iOuH
0.56uH
TRIMMER CAPACITOR,
3-11 pF
ANTENNA
CONNECTOR,
YKV1
1-0065
(A, Al)
,YKV11-0096(B,C)
R126
R127,
R141
Ri 48
R2i0
R288
41-788
41-789
41-787
41-791
68f,
1/4W
DESCRIPTIONS
INTEGRATED
CIRCUIT
2SC929
TRANSISTOR
2SC1815
e
SYMBOL
NO.
PARTS
NO.
DESCRIPTIONS
CuB
50V,
82pF
CERAMIC
DISC
CAPACITOR,
FK1 1
COG1 H
CF1O1, CF1O3
19-157
CERAMIC
FILTER,
SFE1O.7MLK-A
CF1O4
19-140
“
, SFP45OH
FLiOl
19-146 ANTIBIRDIE
FILTER
FL1O2, ELi
03
19-158
LOW
PASS
FILTER,
19KHz’38KHz
FL1O4
19-152
“
, 10KHz
FL1O5
19-153
“
,9KHz
XTAL1O1
19-205
CRYSTAL
OSCILLATOR,
7.2MHz
CR101
19-1
56
CERAMIC
RESONATOR,
CSB456F11
FU1O1
5TT400 FUSE,
1 25V,
400mA
(A, Al)
173000 FUSE, 250V,
400mA
(B, C)
EU
102, EU 103
5TT400 FUSE,
l25V, 500mA
(A, Al)
173000 FUSE, 250V,
500mA
(B,
C)
p
FM FRONT
END P.C.B.
ASSEMBLY:
F
(EXPLODED
VIEW
REF.
NO.
39)
SYMBOL
NO.
PARTS
NO.
DESCRIPTIONS
1S188FM
DIODE
U
I FT
01
3SK114V
TRANSISTOR
02
BF982
03
2SC461
04,05 2SC535B
D1-D5
Li
L2
L3
L4
L5
L6
L7
L8
C2, C9,
Cii, Ci4
J 101
VARIABLE
RESISTOR,
i0Kf-B
,2OKfl-B
5Kf-B
5OKfl-B
FUSIBLE
RESISTOR
22
23

4
w
C.)
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I
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AS 9ICI