Technics STG 90 L Owners Manual

Page 1

" i ' Technics

QUARTZ Synthesizer AM/FM Stereo Tuner

8 I - -.E,-
QUARTZ Synthesizer LW/MW/FM Stereo Tuner
8 I - -} S-

OPERATING INSTRUCTIONS

Notes:
O Specifications diiier according to the area code,
0The "EK area code, for example, indicates United Kingdom

7: ' specifications,
0 The EK indication is shown on the packing case and serial number

tage

Before operating this unit. please read these instructions completely.

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gfafl %J€fl 5941/11

We want to thank you for selecting this product and
to welcome you to the growing family of satisfied
Technics product owners around the world.

We feel certain you will get maximum enjoyment

reference.

These Operatlng instructions are applicable to models ST-GSO and ST»GQOL.
The tunctions which differ for the two models are indicated in the Operating Instructions.

Contents

Technical Specifications ..
Suggestions for Safety .. ..
Before Use
Accessories . .
Connections ..

For United Kingdom

,,1'heEK indication is shown on the name plate

Important
WNW THIS MAIN; Lem fie

For United Kingdom ............................ 2

Antenna Connections ..............

2
3
3
4
4
5

. Wise;

Technical S

CTION

.eana- .e- rcmm.

87.50408 00 MHz

Frequency range
57 525~108.00 MHz (+25 kHz Shin)

Sensitivity 1.5 uV (IHF, usehlei
SIN 30 dB 13 1.4V (75(1)
SIN 26 dB L2 LIV (750)
SIN 20 dB 0 9 LIV {750}

IHF 4! dB stereo quletlng lemltivlty 25 V350
Total harmonic distortion

MONO (normal) 0 015%

STEREO (normal) 0 02.-
S/N

MONO 30 dB (86 dB. IHE)

STEREO 74 (13(79 CB. IHF')

Frequency response
4 HZF~15 kHz, +0 5 63" *0.5 dB
Alternate channel selectivity

normal :wu kHz 55 (:3

super narrow *200 kHz 30 dB
Clpture ratio 1 0 dB
image releclion at 98 MHz 130 dB
IF reiectlon It 98 MH: 130 dB
3punoul responle relection at 9! MHz 130 53
AM suppression 55 dB
Stereo auplratlon

1 kHz 60 dB

10 kHI 45 dB

IN I

II It: -75 65 (~80 dB IMF)

cnlnnal blllnm (250 uremia Ha) 54.0 dB

Limiting point 0.85 [JV
Bmdwldth

IF amplltlor 160 kHz

FM demodulator 1000 kHz

Antenna Iermlnala 750 (unbalanced)

I AM TUNER SECTION

Frequency range
MW
(For Europe and Auutralln)
522 ksz1511 kHz (9 kHzsieps)
530 kHzflszo kHz (10 kHz-steps)
(For Sludl Arabia Ind when)
53. kHz~ 1602 kHzIS kHz-sleps)
530 kHz~1600 kHz (10 kHz-steps)
LW 155 kHz~353 kHz (9 kasteps;
153 kHz~351 kHz (*2 kHz 3hr")
sanshlvlty (SIN 20 on)
"W 20 MV- 300 uV/m
Lw 50 uv
Selectivity (A 9 kHz)
MW (at 999 RH!)
Lw (at 254 kHz)

5006
50d5

from this new addition to your home.
Please read these operating instructions carefully,
and be sure to keep them handy tor convenient

Front Panel Controls and Functions .......... 6
Memory Preaettlng: .............
Listening to Radio Broadcast:
FM automatic RF/automatic IF __
Recording FM broadcasts
Troubleshooting Guide.

' Maintenance ................... . ................ 12

As the coiours otmuumsin the mains Ieadot mu unit inayna:

EGCIIICE'ICIOHS (em 45 son)
rmmm'mm; =.. .

I (I! I RH!) 40 413
w (It :54 ton) on as
IF rejection
IV! (I! '09 em) en 88
m m as: me) as as
I GENERAL
'w mug. 0 av to. lat/INF)
Power comumptlon 9 5w
Power wpptv

For United Kingdom Ind Australia
AC 50 HzSG Hz. 240V
For continental Europe AC 50 H1150 HL ZEN
For uthora
AC 50 Hz/SO HI. novnzrwmwzwv
Dllnenstom (VIYHVD) 430 X 93 5 Y 268 mm
(IS-30.32" X 2-2213?" x 941/32")

Weight 3.5 kg (7 71b}

Notes;

1 Total narrr c distortion is measured by the
digits! soec! m anew-(er (HP. 3045 system),

2. Specifications are sumact to change without
notice Weight and dimensions are approxi-
mate

L

I THIS TUNER/RECEIVER IS CAPAEL E OF RECEIVING THE NE '. AM STEREO BROADCASTS FROMTHE AM BAND RADIO STATIONS.
HOWEVER LIKE MANY TUNERS AND RECEIVERS CURRENTLY AVAILABLE ON THE MARKET IT WILL REPRODUCE THISAM STEREO
SIGNAL ONLY IN AM MONO. WHICH. IN EFFECT. IS OF NO LESSER QUALITY THAN YOUR EXISTING AM MONO TUNER/RECEIVER.

Page 10

Listening to Radio Broadcasts

Have you completed the "Memory Presettings" (page B)?

Switch the ampiiiier ON, and set ii for listening Press the desired channel (1 - 39)-
to radio broadcasls. - To ulna! channels 1 through 9:
Press button (he).
I To leiect channels 10 through 19:
Press button 1 and the second digit (0 e 9).
0 To select chlnnoil 20 through 25:
"on" i l -) Pres: button 2 and the second digit (0 , 9).
0 To select channels 30 through 39:
Press button 3 and the second digit (0 - 9).
For station button using the tuning:
Follow steps 2, 3 of "Memory Presettmgs" on page 9.

FM RF/IF band indicator

am mums

Concerning reception condition of FM broadcasts. (Rater to gage 11.)
The reception condition 01 FM broadcasts is dis layed asidescribed 134-40er
RF section Dasired station '

, , Fr fi-llu

. ' other broadcast station signals (interference signals)
IF norm-1i, . .,
.1Def livertolthe ndiutmuimiminmaumasimmsatma
Wired broadcast station are strong and them an no
_Qterlgrenc_e_sim

g T'he_ m -_ J,panoihemdcatormililluminateiawnes eorboth
sides) it cross modulation interference or naise is mixed

me signais at the esred .
Will be no illumination of indicate interierence.

Station Memory File Sheet . > 7 , ..
CHJ CNS CH3 CH4 Cris CHJ CHJ CHI CH3 CHAD CH. CN.12 CH1!

CH. CHAS CHJE CH.11 CHAS CH1? CH. CH,21 CHJZ CH1! CH2! CHIS CHIS

out: can mm 01.30 cum CH3! cuss cum cries CHJB cum calm

l Most-recent" memory i it the memory setting is erased
The most~recent memory is a system by which the unit

The memo settin s will be erased in the followin cases.
"remembers" the FM or AM broadcast station last heard when ry g 9

this unit isewitched OFF. and automaticallytunes to that station For example:
the next time the power is switched ON 1) It the power cord is disconnected trom the eiectric outlet.
I Back-up memory 2) It an audio timer is used and the timer does not operate the

tuner for a week or longer,

This is the iunctEon which preserves the preset memory and 3) lia power failure occurs etc.

most-recent memory iunctions. In the event of a power iaiiure.

or ii the power cord oi the tuner is disconnected from the if any of the above occurs. the memory will have to be reset
electric outlet. the backup memory will preserve the preset it the power supplyis interrupted lora week or longs: set the
memory and moszrrecent memory tunctions tor as long as power switch at the tuner to the "on" position ior an hour or
approximately one week more Then reprogram the memory

.40-