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ステレオシステム Panasonic RX-CT900のPDF サービスマニュアルをオンラインで閲覧またはダウンロードできます。Panasonic RX-CT900 26 ページ。 Portable stereo component system
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Penne
RX-CT900
RX-CT900
MEASUREMENTS AND ADJUSTMENTS
@ ALIGNMENT INSTRUCTIONS
READ CAREFULLY BEFORE ATTEMPTING ALIGNMENT
5. Set power source voltage to 15 V DC.
6. Set G.E.Q. control to center.
7. Output of signal generator should be no higher
than necessary to obtain an output reading.
. Set volume control to maximum.
. Set FM mode selector switch to FM ST.
. Set band switch to AM/FM/LW.
. Set function selector to TUNER or TAPE.
koh
=
@ AN-IF ALIGNMENT
SIGNAL GENERATOR or
INDICATOR
SWEEP GENERATOR
RADIO DIAL
(ELECTRONIC
—|
"seTTING
VOLTMETERor | (Noter to ala
REMARKS
CONNECTIONS
FREQUENCY
OSCILLOSCOPE)
9. 9
Headphones Jack
Fashion a loop of
:
Point of non-
(32Q)
several turns of wire
ene
interference
Fabricate the
pl
a
i
abricate the plug as
.
3
and radiate a signal into
30% Mod.
(on/about
shown in Fig. 1. and then
T3 (AM IFT)
Adjust for maximum output.
;
at 400 Hz
connect the lead wires of
the loop ant. of receiver.
600 kHz
the plug to the measuring
instrument.
m@ MW-RF ALIGNMENT
m@ FM-RF ALIGNMENT
ADJUSTMENT
(Refer to Fig. 5.)
REMARKS
3.041.0V
7.041.0V
L3 (FM ANT
* Coil)
SIGNAL GENERATOR or
INDICATOR
SWEEP GENERATOR
RADIO DIAL
(ELECTRONIC
SETTING
VOLTMETER or
CONNECTIONS
FREQUENCY
OSCILLOSCOPE)
te to test point
aiag through FM
:
Macys...(+)
dummy antenna.
87.50 MHz
Tune to signal
ry (-)
Negative side to test
point fied.
Headphones Jack
(32Q)
u
90.00 MHz
Seine, ee
connect the lead wires of
the plug to the measuring
instrument.
;
hues
ie
i
m@ SEPARATION ALIGNMENT
EQUIPMENT
FM SIGNAL GENERTOR
SOURCE CONNECTION
CONNECTION
ELECTRONIC
COUNTER
(*1) Fix antenna coil with wax after completing alignment.
98 MHz, 60 dB (CW) Connect to
test point [GXI through FM
dummy antenna.
Negative side to fy.
m@ LW-RF ALIGNMENT
ADJUSTMENT
(Refer to Fig. 5.)
CT1 (FM ANT
Trimmer)
SPECIFICATION
(*2) Adjust for maximum
output.
REMARKS
@ FN-IF ALIGNMENT
SIGNAL GENERATOR or
SWEEP GENERATOR
CONNECTIONS
FREQUENCY
Connect to test point
EE-ZEM through ceramic
capacitor (0.001 JF).
Negative side to test
point iG.
10.7 MHz
(SWEEP)
RADIO DIAL
SETTING ©
Point of
interference
(on/about
90 MHz)
m@ FM DC BALANCE ALIGNMENT
FM SIGNAL GENERTOR
SOURCE CONNECTION
98 MHz, 60 dB (CW) Connect to
test point GX] through FM
dummy antenna.
Negative side to fiigd.
EQUIPMENT
INDICATOR
(ELECTRONIC
VOLTMETER or
OSCILLOSCOPE)
Connect vert. amp.
scope to test point
Biixa- Negative side
to test point GK.
T1 (FM 1st)
T2 (FM 2nd)
ADJUSTMENT
(Refer to Fig. 5.)
CONNECTION
ELECTRONIC
COUNTER
Enzd..(-+)
fad -..(-)
ADJUSTMENT
(Refer to Fig. 5.)
SPECIFICATION
0+30 mV
=17=
REMARKS
Adjust for maximum
amplitude. (Refer to Fig. 2.)
Adjust for maximum
amplitude. (Refer to Fig. 3.)
REMARKS.
Adjust T2, for 0+30 mV reading on.DC
voltmeter.
Connect to test point
Eisi through FM
dummy antenna.
Negative side to test
point fia.
"
288 KHz
Tune to signal
146 kHz
162 kHz
270 kHz
@ HEAD AZIMUTH ALIGNMENT
TEST TAPE
QZZCFM
(8 kHz, —20 dB)
EQUIPMENT CONNECTION
ELECTRONIC COUNTER
Headphones Jack (320)
Fabricate the plug as shown in Fig. 1.
and then connect the lead wires of the
plug to the measuring instrument.
INDICATOR
Adjust VR1, for 19 kHz +50 Hz reading
on frequency counter.
Headphones Jack
(32Q)
Fabricate the plug as
shown in Fig. 1. and then
connect the lead wires of
the piug to the measuring
instrument.
"
q
bo
(*3) Four output responses will be present; proper tuning is the center frequency.
ADJUSTMENT
L7
(LW OSC Coil)
L9-2 (LW ANT
Coil)
CT3 (LW ANT
"
Trimmer)
SIGNAL GENERATOR or
SWEEP GENERATOR
RADIO DIAL
(ELECTRONIC
:
SETTING
VOLTMETER or | (Heterte hig 5)
REMARKS
CONNECTIONS
FREQUENCY
OSCILLOSCOPE)
oy
' 8.0 V+0.5 V
(*3) Adjust for maximum
output.
1. Test equipment connection is shown in Fig. 7.
Azimuth screw
(Shown in Fig. 4)
~18—
. After the adjustment, apply screw-lock to the angle
adjusting value.