Denon UTP-250 - Adjustments; FM Tuning and Reception Adjustments; MW and LW Tuning and Reception Adjustments

D-250 mam
TUNER PRE SECTION
1. FM adjustment (BAND SELECTOR button: FM, STEREO / MONO MUTE button: AUTO)
Tuning point
: - - : ; : ing value
is instrument Frequency Input level Modulation location instrumen: location
1
|
FMDC
balance
|
98MHz
|
FMSG.
|
98MHz
60dB
x
Pia
=
Digital
Volt
|
TP.1,
TP.2
0
+50
mV
pola
ers
pois
3 Repeat Steps 1 and 2.
1kHz FM antenna | Check for the 2 , Input level (Level at which TUNED lights up)
AUTO
STOP
level
98MHz
FM
SG.
98MHz
22dB
ez
75kHz
DEV
lighting
of
TUNED
Output
jack
224B
w
+44B
ape
Raat
a
2. MW adjustment (BAND SELECT button: MW)
Level at which Waveform
a AGC is not a ian : Oscilloscope @ TP3 T-3 maximum
applied antenna terminal © TP.4 and symmetry
Digital voltmeter © R58
OG - Approx. 8.2V | No place to adjust
Level at which ‘
603kHz AGC is not es a ie Loop antenna VTVM Output terminal T-12 Menu
applied output
output
Repeat Steps 3 and 4, and set the output to maximum.
Step} Adjustment item
Clear frequency
(without a
522kHz
1611kHz
Band edge
3 Tracking 603kHz
Tracking 1404kHz
3. LW adjustment (BAND SELECT button: LW)
and
e
igital
voltmeter
=
279kHz
ie
©
TPS
ae
Approx.
7.0V
|
No
place
to
adjust
Level
at
which
:
Tracking
163kHz
AM
S.G.
163kHz
AGC
is
not
00H
Loop
antenna
VTVM
Output
terminal
T-1l
Masinuia
applied
30%
output
Repeat Steps 2 and 3, and set the output to maximum.
Front End
Part No.: 2160079005
Re 10K
31