Adjustment - Kenwood RXD-501 Service Manual

QQ
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1. Tuner adjustment
X05-490x
NO. ITEM
DISCRIMINATOR
1
DISTORTION
DISTORTION
2
(STEREO)
X05-4890
NO. ITEM
1 TUNED LEVEL
DISTORTION
2
(STEREO)
X05-4710
TE
L 13942296513
No. ITEM
1 DISCRIMINATOR
DISTORTION
2
(STEREO)
SENSITIVITY
3
(SW)
X04-1313 Q TYPE (65MHz~74MHz BAND)
N0. ITEM
1 VCO
RESONANCE
2
POINT
www
3 SEPARATION
.

ADJUSTMENT

INPUT
SETTINGS
(A)
Connect a DC voltmeter
98 MHZ,
between pin 1 and pin2 of
70dBf (ANT INPUT)
1 kHz, ±40 kHz DEV
(C)
98 MHz,
70dBf (ANT INPUT)
1 kHz, ±40 kHz DEV
INPUT
SETTINGS
(A)
98 MHz,
31.2dBf (ANT INPUT)
1 kHz, ±40 kHz DEV
(A)
98 MHz,
70dBf (ANT INPUT)
1 kHz, ±40 kHz DEV
PILOT: ±6 kHz DEV
INPUT SETTING
(A)
98MHz Connect a DC
1kHz, ±40kHzdev voltmeter to CN2
70dBf (ANT input)
(C)
98MHz
1kHz, ±40kHzdev
Pilot, ±6kHzdev
70dBf (ANT input)
(D)
6.5MHz
400Hz 30%mod
40dBf (ANT input)
INPUT
SETTINGS
(E)
69 MHz, Connect a frequency
70 dBf (ANT INPUT) counter to VCO monitor
1 kHz, 0 kHz DEV
SUB, 0 kHz DEV
(E)
69 MHz,
70 dBf (ANT INPUT) Connect a oscilloscope
1 kHz, 40 kHz DEV to TUNER OUT(CN6).
SUB, 10 kHz DEV
Select : L or R
x ao u163
y
(E) Connect a oscilloscope
SAME AS ABOVE to TUNER OUT(CN6).
i
RXD-501/551/571/A5/701/751/771/A8
2 9
8
OUTPUT TUNER
SETTINGS SETTINGS
MONO
98.0 MHz
CN2.
AUTO
(B)
98.0 MHz
OUTPUT TUNER
SETTINGS SETTINGS
MONO
98.0 MHz
AUTO
(B)
98.0 MHz
Q Q
OUTPUT TUNER
3 6 7 1 3
SETTING MODE
MONO
98.0MHz
AUTO
(B)
98.0MHz
(B) 6.5MHz
OUTPUT TUNER
SETTINGS SETTINGS
AUTO
69 MHz
(CN2).
AUTO
69 MHz
AUTO
69 MHz
.
9 4 2 8
ALIGNMENT
ALIGN FOR
POINTS
L31 0V
L32 Minimum
(EXCEPT K/P) distortion.
Minimum
IFT (A1)
distortion.
ALIGNMENT
ALIGN FOR
POINTS
Adjust VR1 and stop
at the point where
VR1
ED1 (TUNED) goes
ON.
Minimum
IFT (A1)
distortion.
ALIGNMENT
1 5 0 5 8 2 9 9 4
ALIGN FOR
POINTS
L5 0V
IFT (A1) Minimum distortion
L2 Maximum output
ALIGNMENT
ALIGN FOR
POINTS
Adjust it the
frequency counter
VR 2
reads 31.25 kHz
±100 Hz.
Minimum
TC 1
crosstalk.
m
co
Minimum
VR 1
crosstalk.
9 9
FIG.
(a)
(a)
FIG.
(a)
(a)
2 8 9 9
FIG.
(a)
(a)
(a)
FIG.
(a)
(a)
(a)
13