Adjustment - Kenwood AR-304 Service Manual

AR-304/KRF-A4020
QQ
3 7 63 1515 0
N o . I T E M
FM SECTION : EXCEPT E,T,Q type
DISTORTION
1
(STEREO)
2 TUNING LEVEL
FM SECTION : E,T,Q type only
1 DISCRIMINATOR
DISTORTION
2
(MONO)
TE
L 13942296513
DISTORTION
3
(STEREO)
4 TUNING LEVEL
AUDIO SECTION
1 IDLE CURRENT
SYSTEM CONNECTIONS
(a)
AM
PLAY IN PLAY IN
GND
L
R
PHONO
AUX
www
FM-MPX-SG
.
FM-MPX-SG
Dummy antenna
AM SG
6

ADJUSTMENT

INPUT SETTINGS
SELECTOR : FM
(C)
98.0MHz 1kHz,
±68.25kHz dev. Selector
: L or R Pilot : ±6.75kHz
dev. 70dBf (ANT. input)
(A)
98.0MHz MONO 1kHz,
±75kHz dev.
25dBf (ANT. input)
SELECTOR : FM
(A)
98.0MHz 1kHz,
±40kHz dev.
70dBf (ANT. input)
(A)
98.0MHz 1kHz,
±40kHz dev. MONO
70dBf (ANT. input)
(C)
98.0MHz
1kHz, ±40kHz dev.
Selector : L or R
Pilot : ±6kHz dev.
70dBf (ANT. input)
(A)
98.0MHz MONO 1kHz,
±40kHz dev.
25dBf (ANT. input)
–
SPEAKERS
R
A
+ - -
REC OUT PLAY IN REC OUT PLAY IN
+ - -
B
SUBWOOFER
TAPE2/
MD / TAPE1
MONITOR R
PRE OUT
x ao
y
(A)
AC voltmeter
i
(C)
POLAR SG
(D)
8
OUTPUT RECEIVER
S E T T I N G S S E T T I N G S
(B) 98.0MHz
MONO
(B)
98.0MHz
Adjust NO.1 and NO.2 repeat.
Connect a DC
voltmeter
MONO
between CN2
98.0MHz
1 and CN2 2
(TUNER UNIT)
MONO
(B)
98.0MHz
Q Q
3 6 7 1 3
AUTO
(B)
98.0MHz
MONO
(B)
98.0MHz
Connect a DC
Volumeter
across
Volume: 0
CN11 (L)
CN12 (R)
AC 110 - AC 220 - AC 110 - AC 220 -
120V 240V 120V 240V
L
SWITCHED TOTAL
+
150W MAX
+
L
u163
Oscilloscope
.
Distortion meter
(B)
2 9 9 4 2 8
ALIGNMENT
ALIGN FOR
P O I N T S
IFT Minimum distortion
(TUNER
(L or R)
UNIT: A1)
Adjust VR1 and
VR1 stop at the point
(TUNER UNIT) where ED51
(TUNED) goes on.
L4
0V
(TUNER UNIT)
L5
Minimum distortion (a)
(TUNER UNIT)
1 5 0 5 8 2 9 9 4
IFT
Minimum distortion
(TUNER
(L or R)
UNIT : A1)
Adjust VR1 and
VR1 stop at the point
(TUNER UNIT) where ED51
(TUNED) goes on.
VR1 (L)
11 mV
VR2 (R)
(b)
Dc voltmeter
m
co
CN11, 12
9 9
F I G .
(a)
(a)
(a)
2 8 9 9
(a)
(a)
(b)