Technics STS 4 T Service Manual

Page 1

ORDER NO. SDS1071902C8

Service Manual

QUARIZ Synthesizer FM/AM Stereo Tuner

ST- S4T

.. .. , ' , [0x1 [Ee] [EF] [EH]
- v. y . , _ [EW]

{The cabinet and front panel are available in black
* The black type model is provided with (K) in the

Areas
~ '
* [DX] is available in Scandinavia except European * [DM] is available in Denmark.
and Denmark. * [EK] is available in United Kingdom.
" [EG] is available in FR. Germany. [EW] is available in Switzerland.
[EF] is available in France. * [XA] is available in Southeast Asia, Oceania. Africa.
* [EH] is available in Holland. Middle Near East and Central South America.
* [EB] is available in Belgium.
English ' J
Specifications (Specifications are subject to change without notice for further improvement.)
(DlN 45 500)
, Channel balance (250 Hz~6,300 Hz) $1.0 dB
I FM TUNER SECTION Limiting point 1.9 1N
Frequency range Bandwidth _ _
87.9~107.9 MHz (0.2 MHz step) 'F fir"9'"ler 50 "Hz
87.50~108.00 MHz' (0.05 MHz step) FM mh 1000 "Hz
Sensltlvlty 20 V (IHF. usable) Antenna terminals 300!) (balanced)
am so dB 20 V (3000), 1.6 yV (750) 75 (nbfl'ancedi
S/N 26 113 1.8 Md (3000), 0.9 yV (75(1)
sm 20 dB 1.6 v (3000), 03 [1V (75m I AM TUNE SECTION
IHF 46 dB stereo quieting sensitivity 24.5 pV/750
Total harmonic distortion Frequency range 522 kHz~1611 kHz (9 kHz step)
MONO (normal) 003% 530 kHz~1620 kHz (10 kHz step)
STEREO (normal) 01% Sensltlvlly (SIN 20 dB) 30 uv, 250 uV/m
sm Selectiwa (i9 kHz) 55 dB
MONO _ 70 dB (78 dB. IHF) Image raiection at 999 kHz 45 dB
STEREO 65 dB (73 dB, IHF) IF rejection at 999 kHz 40 dB
Frequency response 20 HZ~15 kHz. +0.5 dB; -1.5 dB
Alternate channel selectivity I TIMER SECT|ON
normal 1400 kHz 60 dB
super narrow i200 kHz 22 dB Clock Quanzqock gype
Capture ra||o 1-0 dB 24-hour indication
Image relecilon 8| 98 MHz 70 d3 Precision Within :10 sec, monthly (at 25°C)
IF rejection at 93 MHZ 90 3 Functions 24-hour programmable;
Spurious response rejection at 98 MHz 90 dB everyday (2 times),
A" suppression 55 dB once only (1 time)
519790 lePIfa'iOD Programmable content On/olf of program source
1 kHz 50 dB (FM, AM)
10 k: 40 dB Designation of preset station
Carrier leak Setting intervals 1 minute~23 hours. 59 minutes
19 kHz -30 dB (-35 dB, IHF) (at Hum imewais)
38 kHz -45 dB (-50 dB, IHF)

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Technlcs 3523 4:33; 021.21%... ..3..

Page 15

Rot No. Pan No, Part Name a Description R51. Nob Part No, Part Name 31 nosoripnon
RELAY R403 511112551552 Carbon, 1/4w, 5.5m, 1 5%
R404 51102554001 Carbon, 1/4w, 65m, 1 5%
HLY701 A SSYBI RalavrAC Oullfl R405 51102511273 Carbon, Ilaw, 27kn, 1 5%
H407 ERDZSTM Carbon, 1/4w, 92m, 1 5%
RESISTORS R409 51102551103 (Clarbon, 171w, 10kg, 1 5::
R411 51195051320 arbon, 14w, 82 , 1 5
2; $333; gar? 2 123:3 * 2: R412 maze-mas Carbon, 1/4w, 13m, 1 5%
3' °"' ' ' * R413 51102551103 Carbon, 1/4w, 10m, 1 5%
513,4 512025121104 Carbon, 1/4w,100kn, 1 5% H501 51102553102 Cam" 1/4w 1m 1 5%
R5 511172551100 Carbon, now, 1012, 1 5% ' ' '
R6 512:1me Carbon 1/aw 100m 1 5%
4 1 . R ER C b , 1 4w, 100m, 1 5%
R7 511132551221 Carbon, 1/4w, 22012, 1 5% 51%; 511:2;flg 03,33: 174w 56m 1 5%
28 Ennzsmoa cam 1/4W,1t7)0:§, * 5% R606 511025111104 Carbon, 1/4w, 100m, 1 5%
9 257" cam va 0 ' i 5% R701 A 51101251101 Carbon, 1/2w, 10011, 1 5%
R10 251 cam 4" 22° 5% R702 A 51105051471 Carbon, 1/2111 47011, 1 5%
R" ERDHTM ca'bmr 4W1 100m, 1 5% R703,704 511025151103 Carbon, 1/4w, 10m, 1 5%
R705 511025151102 Carbon, Haw, 1kfl, 1 5%
:1; 5:32:32: gar? :jszv' 2;;3' : 3: R706 511132551101 Carbon, 1/4w, 10011, 1 5%
H14 ERD25TM73 Chg: 1/4w 47m, 1 5% R708 511122551193 Carbon, 1/4w, 10m, 1 5%
R15 511132551103 Carbon, MW, 1014:, 1 5% R709 A ER°12HJ33° FuwTVWMeww'I/zwna * 5%
R16 511132551222 Carbon, 1/4w, 2.2142, 1 5% R710 5sz Carbon, 4w, 1.5), 1 5%
R17 5110255147: Carbon, 1/4w, 4.7m, 1 5% R711 5111225542112 Carbon 1/4w 2211 1 5%
:13, Ezgggjg; germ 1/4w,100kn, 3 5% R712,713 511112551101 Carbon, 1/4w, 100m, 1 5%
am AW' 3,9141, * 5% R714 51102551470 C bo 1/4w 4m 1 5%
R102 51102551102 Carbon, 1/4w, 1m, 1 5% R715 A 5110505.:102 C2330: 1/2w (9' 1 5%
R103 ERDZSFM' cam 1/aw, 00. i 5% R717 7111 51102551222 Carbon' 114w, 2.2m, 1 5%
R719,720 51102551103 Carbon, 1/4w, 10m, 1 5%
:13; 22322;: 3mm" 1/4w, ML 5% R721 5R0251J104 Carbon, Maw, 1001:), 1 5%
W" 4W' 6809' t 5% R722 ERDZSTJSZJ Carbon 1/4w 02m 1 5%
R106 511132551411 Carbon, WW, 4701;, 1 5% ' ' '
R107 51302551103 Carbon, 1/4w, 0an 1 5% 51723724 51102511153 Carbon, 1/4w, 15m, 1 5%
mean» 5115;255:592 Carbon, 1/4w, 5.8km, 1 5% R725 51102551221 Carbon, HM, 2209 1 5%
R110 25"? cam 4W1 33k i 5% R901 ERDZSFJ682 Carbon, 1/4w, 5.8141, 1 5%
R111 51102551222 Carbon 1/4w, 2.2m, 1 5% 0902 25, Carbon, 1/4w, 10m, 1 5%
R112 ERDZSFJ551 Carbon, 1/4W, 56091 1 5% R903 ERDISTJZZ3 Carbon 1/4W ZZKQ 1 5%
R113 51102551102 Carbon, 1/4w, 1m, 1 5% R904 51102551102 Carbon' 1/4w' (9' 1 5%
51111115 51102554331 Carbon, 1/4w, 33012. 1 5% R905 51102551551 Carbon' 1/4w' 5609 1 5%
W kn ,
R116 51102554692 Carbon, 1/4w, 613m, 1 5% 233? 2:32:32; Eggs: 2W 551(52' : :2:
R117 511132551132 Carbon, 1/4w, 1.8m, 1 5% R900 51102551152 Camon' 1/4w' 15141 1 5%
R113 ERDZSTJIS: Carbon, 11m, 10m, 1 5% R909 51102551002 Carbon' 1/4W' s'aksz' 1 5%
R119 511132511273 Carbon, 1/4w, 27m, 1 5% ' ' '
R120 51102571274 Carbon, 1/4w,2701 2:; 5:32:33; ENE ma £33 1:: R911 51102551101 Carbon, 1/4w, 10051, 1 5%
3r °' ' ' * R912,913 5R0257J473 Carbon, 1/4w, 47m, 1 5%
R123,12a 51102514133 Carbon, 1/4w, 13m, 1 5% R9 0257" Carbon 1/4w 47m 1 5%
R125 25": WW 174w, 56,53 1 5% R915 Ennzsnm Carbon: 1/4w, 60m, 1 5%
R126 ERDZSTJ cam 4W 1 ' i 5% R916,917 51102511104 Carbon, 1/4w, 100m, 1 5%
R127 55192511273 Carbon, 1/4w, 27m, 1 5% 9,5 51102551272 Cam mm, 2.719, 1 5%
R128 ERDZSTUM Carbon, WW, mom, i 5% R919 5R025FJ822 Carbon, 1/4w, 8,2kSZ, 1 5%
729 ERDISFJSGZ Carbon, 1/4W. 515k : 5% R920 511025121153 Carbon, 1/4w, 15m, 1 5%
R201 511132511104 Carbon. 1/4w, mom, i 5% R921 5RDzerm Carbon, 1/4w, 47012, 1 5%
R202 "925? Carbon. 4W. 91 i 5% R922 511122551331 Carbon, 1/4w, 33012, 1 5%
R204,205 511025511113 Carbon, 1/4w, 10m, 1 5% 5923 51102511823 Carbon, 1,4w' 52m, 1 5%
R206 91574473 Carbon. 4W1 47 1 5% 5924.925 5110255le2 Carbon, 1/4w, 12m, 1 5%
R207 ERDZSTJW Carbon. 4W1 12k 1 5% R926 511025121104 Carbon, 1/4w, 180kfl, 1 5%
R208 DEF-"71 Cam". 4W1 47091 i 5% R961 55102513105 Carbon, 1/4w, 100m, 1 5%
R209 915F321 Carbonr WW 3209 t 5% R952 511025541112 Carbon, 174w, 1m, 1 5%
R210 5395? Carbonr 1/4w, 56 1 5% R963 51102551103 Carbon, 114w, 10m, 1 5%
R212 EHDZ5FJ70 Carbonr WW 4791 t 5% R991 51102511104 Carbon, 1/4w, 100m, 1 5%
R301 EHDZSTJ333 Carbon, 1/4w, 33m, 1 5% .5982 55,325,553 Came", 1/4w, 55m, 1 5%
R302 5110251122: Carbon, 1/4w, 22m, 1 5% R953 925mm Cam 1/4w, 100m. 1 5%
R303 511132571134 Carbon, 1/4w, 130m, 1 5%
11304305 51102514223 Carbon, 1/4w, 22m, 1 5%
R310 51102511102 Carbon, 1/4w, 1m, 1 5% CAPACITORS
R311 51102511153 Carbon, 1/4w, 15m, 1 5% c1 5c5asozam Erwromm, 501/, 33.:
H312 A ERDWFMN Carbon, l/ZW, 479., 1 5% C2 ECCDIHZZOK Ceramic, 50V, ZZDF. 111%
€313,314 ERDst-KKIZ Carbon, HAW, 3.3m, 1 5% c3 ECCDIHOSOCC ceramic, 50v, 5pF, 10,25,131:
R315,315 51102511333 Carbon, 1/4w, 33m, 1 5% C4 500311110225 Ceramic, 5010001115, 33%
R317 51102511473 Carbon, 174w, 47m, 1 5% C5 5C1 R319 51102551103 Carbon, 1/4w, 10m, 1 5% C6 5CCD1H07ODC Ceramic. 50v, 7115, 10,5o5
R320 511132511272 Carbon, 1/4w, 27m, 1 5% (27,8 ECKDIHIOZZF Cerarmc, 5010001115; 33%
C9 5CC01H0R5CC Ceramic, 50v, 0.51.15, 1025115
R401 51102511353 Carbon, 1/4w, 33m, 1 5% C10 ECKD1HIOZZF Ceramic. 50v,0.001m=. 33%
C11 5CCD1R0700C Ceramic, 50v, 705, 10.555
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