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a FM-RF ALIGNMENT
SIGNAL GENERATOR
INDICATOR
FM MODE | an yyst
REMARKS
DISPLAY
CONNECTION
| FREQUENCY
(VTVM
or SCOPE) | SWITCH
FM MONO DISTORTION ALIGNMENT
MW OSC
LW OSC
Separation
FM Free Run
1st IFT
(Earth)
tlle to EXT.
98 MHz
Distortion meter to
7202
Adjust for minimum
T203
Me
Senne
100% Mod.
speaker jack (L).
;
distortion meter
terminal through
| Wish 'agg He
(FM Disc) | indication
PTL
a]
dummy antenna.
(Imp. 42).
:
LW OSC
(0 (|
TP301
=
FM Stereo Alignment
Rs
(O]
el
ce
TP102
FREE RUN ALIGNMENT
_
EQUIPMENT CONNECTION
|
ADJUST
REMARKS
108
ES
(Earth)
Connect frequency counter to TP301 and TP302 (Earth)
VR302
Adjust VR302 for 19 kHz +50Hz on frequency counter
2nd IFT
||
at 98 MHz, non modulation with 60 dB input.
reading.
T204
[O}
SEPARATION
ALIGNMENT
3rd IFT
FM Disc
7
|
a
|
| een:
|
Ni
. Stereo Modulator:
Connect Stereo Moduiator to EXT, Mod. terminal of signal generator.
T205
R220
T202
MW ANT
FM
Disc
(e)
| cT101 |
01
oy toh
TP202
. Signal Generator:
Modulation Rate of 19 kHz Pilot Signal
9%
Modulation Rate of Right and Left Signal
. . . 30% (1 kHz)
Output Level
3. Tuner (Balance Control):
Adjust balance control so that output level from both channels becomes equal.
FM Tuner Pack
(Earth)
gS
©
> @
locum
°)
EQUIPMENT CONNECTION
| ADJUST
REMARKS
TP101
SIGNAL GENERATOR
OSCILLOSCOPE
|
FM Tuner Pack
—
Adjust VR301 for minimum indication of VTVM
VU Meter
p®)>
(AM ANT P, C. Board)
Connect vertical
from the left side output when the right side of
| vR806 |
Px
Connect to EXT. FM
Connect across
;
VR301
bch
ae)
TP203
antenna terminal
speaker jack.
amp. input of
|
(Separation
pant ire tad Ue lat enetiaeer
he
r i
r
n®) is
=
through dummy antenna
(Imp. 42)
scope to terminals
Control)
djust
VR301
in the same way
for the right side.
VU Meter
8
VU Meter
s
of VTVM.
Adjust for best balance between ''L to R'' and
[ VR805 |
7
"
"'R to L" separation.
VR805
fae:
Pe
VR808
MWANT
vu Meter
Note:
When aligning separation, disconnect frequency counter.
= VU METER ALIGNMENT
TP204
TP206
(Earth)
VTVM
CONNECTION
TAPE DECK
DOLBY
NR
.
C ,
Boar
|
reeos |
* Apply 150 mV, 1 kHz to AUX,
REC Volume | - Adjust Rec Volume to get 580 mV
reading on VTVM.
i
.
.
VR807
- Adjust VR807 and VR808 to light at
(
MEONMERTON
VR808
+2VU ( mark).
Recording
|
» Attenuate the applied signal by —20dB,
:
at —18 VU.
m SYNTHESIZER ALIGNMENT
SYNTHESIZER ALIGNMENT
j
ALIGNMENT
COUNTER CONNECTION
ADJUST
REMARKS
PLL
TPOO1
Shield Case
- Connect frequency counter between TPOO1 and shield case.
Standard OSC
| (pin 12 of ICQ02)
,
- Confirm that the frequency is 100 kHz 0.9 Hz.
TP002
- Connect frequency counter between TPOO2 and shield case.
|
(pin 28 of ICO003)
LOO4
- Confirm that the frequency is 150 kHz
~ 200 kHz, and adjust
!
CPU Clock
L004 to count 200 kHz when the frequency isbeyond 200kHz.
KEY SWITCH
(Synthesizer P. C. Board)
and off—error display " by calling the other frequencies beside
""87.5"" MHz"
~ '108.00 MHz.
ae
a
TP0O3
(Q012 collector)
+ Confirm that the frequency display becomes '108:00'' MHz
by calling '87.5'' MHz and pushing ''DOWN" key SW once,
- Confirm that the frequency display becomes '87.5' MHz by
Ce
calling ''108.00"" MHz and pushing "UP" key SW once.
+ Confirm that the frequency display becomes "000.00—turn on
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