Technics ST-9600 - Page 4

m ALIGNMENT INSTRUCTIONS
Notes:
, Output level control . Maintain line voltage at rated voltage. FM MPX PILOT ALIGMENT
4 ee EGE hi ; Output of signal pecker should be no higher than necessary Using a frequency counter Using alternate system
. M igh biend switc to obtain an output reading. - - - ete
. Rec/Playback switch . 3000 FM dummy antenna Refer to fig. 1 @® 98MHz Non-modulated mono signal applied to set. ® Apply stereo signal from generator or stereo station to tuner,
. Band selector switch . Detector Refer to fig. 2 14 g Muting switch to ON. @ Adjust VR6OT until stereo eee Ne up,
3) Connect frequency counter to TP6O1 through 100kN resistor. Cement arm of VR6O1 as shown in fig. 4.
SIGNAL GENERATOR INDICATOR A
or SWEEP GENERATOR Pl ae (VTVM or SCOPE) ee REMARKS ® Adjust VR6O1 to 19kHz £30Hz.
CONNECTION [FREQUENCY | [DISTANCE] (DISTORTION METER) STEREO SEPARATION ALIGNMENT
AM ALIGNMENT Notes: 1. Stereo modulator ................. Connect stereo modulator output to Bar MOD Ad 7 signal saa
igh ff AOA St TY APP fo intermal OSC... Hot signal modulation... ..
Sweep
generator
high
-
|
7404
(ist
1ET)
(P)
;
internal
OSC
i
:
side through 0.0014F ABBKHz Piont of non- | Connect vertical amplifier of | T405 (1st IFT) (S) Adjust for maximum 2. Signal generator ..............-.. Frequency approximately 98MHz. Output level 72dB (IHF), Modulation mode to FM
to TP2. Common to inter-ference scope to TP3. T406 (2nd IFT) output 3. Band selector switch ...............
chassis.
- 1 SIGNAL GENERATOR ee MODULATOR INDICATOR ADJUSTMENT POINTS REMARKS -
Fastin ore ot ia | goonhi |, 800k, [Connect Vive orscopete. [Fane (OSE Ca [Aauat fee narinumn SONI fo = MODE ert MOD SATE he score!
signal into loop of tuner. | with 400Hz) [17.9mm(%")] | output terminal of set. T402 (DET Coil) of L401 by screw driver. LEAK CARRIER ALIGNMENT
Fashion loop of several 1500kHz CT403(OSC Trimmer) | Adjust for maximum FM antenna terminal Only Pilot Signal 19kHz | Connect VTVM or scope V R602 (Leak Carrier) Adjust for minimum . me
turns of wire and radiate | (30% Mod de, eee earubegeaa Pde, ot oo te CcT401 fase Trimmer) | output. 15 through dummy antenna. | (10% modulation) to output terminals. V R603 {Leak Carrier) output of set.
signal into loop of tuner. | with 400Hz) : CT402(DET Trimmer) | Repeat steps (2) and (3)
8 ° FM-IF ALIGNMENT : P OUTPUT TERMINAL STEREO SEPARATION ALIGNMENT
3 FM antenna terminal Connect VTVM or scope to : ini
Sweep generator high Point of non. | COnMect vertical amplifier of Adjust for maximum 16 | through dummy antenna. L [and R] OUTPUT terminals erouan VR801 Adjust for minimum
side through 0.001 uF to : scope through detector to T1 (Main IFT) amplitude and symmet- (30% modulation) (OUTPUT SEPARATION) right (and left) output.
inter-ference. TP101.
TP1.Common to chassis.
tical curve.
low pass filter, Refer to fig.5
T2B4 MUNIRIET | Adicettor mekinum hers REC OUT TERMINAL STEREO SEPARATION ALIGNMENT
Point
of
non-
Connect
vertical
amplifier
of
(P
and
proper
linearity.
:
s
ans
10.7MHz2
inter-ference
|
scope
to
TP251.
7252
(Muting
IFT)
Adjust
center
frequency
7
FM
antenna
terminal
L
[and
R]
Connect
VTVM
or
scope
to
VR701
Adjust
for
minimum
(S)
as step 4. Refer to fig. 3. through dummy antenna. | {30% modulation} Re Rai ay through (REC OUT SEPARATION) right (and left) output.
Sweep generator high
side through 0.0014F to
TP1. Common to chassis.
+4
Point of non- Connect vertical amplifier of | 17101(DISCRI IFT)(P)} Adjust for maximum out-
inter-ference scope to output terminal of set] Brown Core put noise level.
Non-Signal
PINK
NOISE
ALIGNMENT
T102(DISCRI IFT}(S)| Adjust for center of tuning @ Apply 60 dB 98M#z FM signal to antenna terminal. @® Reduce selector switch to ‘‘pink noise
Green Core meter indication 18 |@ AF signal level at REC OUT terminal should then be 0 dB. @® Adjust VR351 so that the output is then 6 dB less than the
previous output.
Point.of non-
inter-ference
Non-Signal Tuning meter of set.
M-RF ALIGNMENT
L6 (OSC Coil)
Connect to FM antenna 9OMHz L4 (DET Coil) (S) : P
i 90MHz Connect VTVM or scope to H Adjust for maximum
teminal
through
FM
(100%
Mod.
ayer
:
L3
(DET
Coil)
(P)
H
7
duramyantenna.
with
400Hz)
{28.5mm
(134")]
|
output
terminal
of
set.
C2
(ANT
Coil)
(S)
e
Alignment
Points
L1
(ANT
Coil)
(P)
Z ene erage Hause
Connect to FM antenna z CT4(DET Trimmer}(S) | Adjust for maximum
terminal through FM | (100% Mod. | 4.4 Lobel Cote ey OF SCOPE tO | ET3(DET Trimmer\(P) | outout, [eon] aaanr his
dummy antenna. with 400Hz) : B et CT2(ANT Trimmer)(S) | Repeat steps (8) and (9)
CTI(ANT TrimmerXP) DISCRI IFT DISCRI IFT AM 2nd IFT FMOSC FM DET (Secondary) FM DET (Secondary) FM IFT FM DET (Primary) FM DET (Primary) FM ANT (Secondary)
{Secondary} (Primary) 458kHz 9OMH2 +06MHz 9OMHz 10.7MHz QOMHz }O6MHz 90MHz
FM MONO DISTORTION ALIGNMEN
Adjust for minimum
ae he bos Mae 98MHz Connect distortion meter to |1T101 (DISCRI IFT)(P)j distortion meter indica-
untirityarterine.
with
400H2)
output
terminal
of
set.
Brown
Core
Foose
ee
Seo:
(FM tF output)
TP1O1
{FM IF input)
Te
1 ud
FM ANT {Primary)
9OMHz
SIGNAL METER ALIGNMENT
Connect
to
FM
antenna
|
terminal
through
FM
98MHz
:
dummy
antenna.
(30%
Mod.
98MHz
Signal
meter
of
set.
Adjust
isd
te
ial
47
Output
level
of
SG.
with
400Hz)
erpsianal
Meier
stele.
100d B (IHF){about 100m) | -
ct
FM
ANT (Primary)
MHz
cT2
ANT (Secondary)
Miz
TP251
MUTING LEVEL ALIGNMENT
Note: Muting switch to ON (Lever is center position)
cT401
Se AM ANT
1500kHz
Connect to FM antenna
pet ed es ogee tied 98MHz Connect VTVM or scope to Adjust that output can 7252 1405 [ T404 7402
Output
level
of
SG.
with
400Hz)
SURDUE
ASmmInal
OF
Ser.
pe
obtained:
fSeondev]—Weremmryh
Santry)
=
tprumaty)
toss
500k
SooKH?
1s00KHE
cook
26 dB (IHF) ASEkHz 465KH2
OUTPUT
Muting
switch
to
ON
(Lever
is
lower
position)
.......
deep
SEPARATION
ADJ.
MUTING LEVEL
AD.
[vases
|
\
/
VR562
|
MUTING
LEVEL
ADs.
finput
14d8)
[any re) r=) @-—_ mer] FM METER ADJ.
(input 2848)
Connect to FM antenna
terminal through FM 98MHz F
dummy
antenna.
(100%
Mod.
98MHz
Connect
VTVM
or
scope
to
Adjust
so
that
output
can
Output level of SG. with 400Hz) output terminal of set. be obtained.
40dB (IHF)
NO ADJ.
T602
49kHz WAVE
REC OUT Q
SEPARATION
ADJ.
TP6O1
8) (19kH2
Output) .
NO ADJ.
7601
| 112.59 | 19kH2 TRAP
ToSG | 750 | To Tuner Oo
(SG
imp.
752)
|
LEVEL
ADJ.
PHASE
ADJ.
a vr6o1 va6o2 | [_vreos | viet
K LeveL ADs
(tesserae
ey
BS
as
4
fone
CARRIER
CARRIER
.
3000
FM
Dummy
Antenna
|
Fig.
1
DETECTOR
|
Fig.
2
:
5|
ST-9600
[6]
S$T-9600
!