Table of Contents
Advertisement
put
d indi-
dB
3. FM ALIGNMENT
Conditions: Set the function switch to FM.
Set the muting switch to off (m=).
step|
Item
Connections required
Alvan
'Adjustment method
Adjust so that the wave-
4
Connect the FM signal generator
|98.14MHz| 98.1MHz | 1201 (A) | forms in steps 1 and 2
-
(1kHz 100% modulation) to FM
i
beconie the same level:
A
ie
3002 BAL ANT terminals
At this time tuned indi-
2 | discrimi. | through the 3009 balanced
98.06MHHe| 98.12 | T201 (A) | At this tr
nator
dummy.
z
| adjustment | «Connect the oscilloscope and
'Adjust so that the dis-
3
distortion meter to TAPE 1 OUT | 98-1MHz | 98.1MHz | 7201 (8) | tortion becomes mini-
terminals.
mum.
4
Repeat steps 1 through 3.
Tuned
Adjust so that the tuned
§ | indicator
VR201
indicator lights at 10uV
__| adjustment | , same as above.
input.
Connect the DC voltmeter to
Adjust so that the DC
Signal
TPQ (+) and ground (—).
voltage becomes 11V at
6 | indicator
VR202
AmV input. And then,
adjustment
confirm the five signal
indicator lights.
98.1MHz
7
(unmo-
| 98.1MHz
VR151
19.00kHz + 0.02kHz
ulation)
Confirm the stereo indi-
8
«Connect the stereo modulator,
| 9g. imiz | 98.1MHz | VR351__|
cator lights at 302V
(L + R = 45.5%, L — R = 45.5%,
+£2dB input.
19kHz = 9%) to FM signal
—
~
generator.
Set the stereo modu-
PX
Apply signal generator output to
lator to 19kHz only.
9
si
FM 3002 BAL ANT terminals
98.1MHz | 98.1MHz | VR152
| Adjust so that L and R
_ | Adiustment | through the 3002 balanced
Outpur level beams
dummy.
minimum.
Connect the frequency counter to'
Adjust so that the right
TP10 (+) and ground (—-).
channel output becomes
Connect the oscilloscope and AC
minimum when only the
voltmeter to TAPE 1 OUT
left channel of the stereo
10
terminals.
98.1MHz | 98.1MHz | VR301_ | modulator modulated
and so that the left chan-
2
nel output becomes mini-|
'
mum when only the
right channel modulated.
Advertisement
Table of Contents
