My Telefunken Collection

STC 1

Device Type

Cassette Deck

Start of Sale

1980

General Description

The STC 1 is the 19-inch rackmount version of the CC 20 cassette deck, which represents the top-of-the-line cassette deck Telefunken offered in it 1980 slim-line component systems. Compared to its immediate predecessor, the TC 750, it lacks the innovative direct drive for the capstan, but the VU meters have been replaced with LED chains, which may be seen as an advantage or not, depending on the personal standpoint...similar to the TC 750, the STC 1 can be remote controlled. Telefunken originally offered a small box with a long cable, but connecting it to the RP 300's tape remote control output works also.

The STC 1/CC 20 has been praised for its clear and timeless design, which makes it a desirable item even these days.

Features

Electronic Drive Control; HighCOM; Dolby-B compatible; Fe/Cr/FeCr/Metal Tape Support; switchable multiplex filter; mechanical tape counter with memory function; LED VU meters; remote controllable

Connectors

Radio/Phono/Tape (DIN); Microphone/Aux (DIN); Line in/out (4xCinch); Headphone (DIN); Remote Control (DIN)

Technical Data

(taken from the service manual)

Tape Speed: 4.75 cm/s

Speed Tolerance: ± 1 %

Frequency Range: 30-18000 Hz (CrO₂)

30-16000 Hz (Fe₂O₃)

30-16000 Hz (FeCr)

30-18000 Hz (Metal)

Variation of Speed: ± 0.2 % (REC+PLAY)

± 0.1 % (only PLAY)

Distortion Factor

at 200 nWb/m <= 3 % (CrO₂)

<= 1 % (Fe, FeCr)

<= 2 % (Metal)

S/N Ratio with HIGH COM: 76 dB

Erase Damping: >= 66 dB

Erase Frequency: 86kHz

Reduction of max. High Frequency Level at 10 KHz,

at 200 nWb/m <= 12 dB (CrO₂)

<= 12 dB (Fe₂O₃)

<= 10 dB (FeCr)

<= 5 dB (Metal)

L/R Channel Damping: >= 35 dB (Stereo)

Input Sensitivity: <= 0.1 mV / kOhm

Input Impedance: 6 kOhm Radio/Micro

470 kOhm Aux

220 kOhm Line

Output Voltage: 1.2 V

Output Resistance: 10 kOhm Radio

8.2 kOhm Line

270 Ohm Headphome

Playback Deemphasis: 3180 µs / 70 µs (CrO₂)

3180 µs / 120 µs (Fe₂O₃)

3180 µs / 120 µs (FeCr)

3180 µs / 70 µs (Metal)

Multiplex Filter: 19 kHz Pilot Tone Suppression switchable

Mains Voltage: 220/110 Volts

Frequency: 50/60 Hz

Common Failures

The STC 1 shares a relatively complex drive mechanism with the TC 750. The head sleigh is moved via a solenoid (barely visible in this photo, with a lever attached at the top), and the lubrication of all the levers between the solenoid and the sleigh gums up over the years. It's really a tedious work to relubricate all the mechanical parts, but you won't get around it...

Spare Part Numbers

(taken from the service manual)

Cabinet Parts

Position Order No. Description

1 339 130 008 front mask CC 20, brown

1 339 130 009 front mask CC 20, champagne

1 339 130 962 front mask STC 1, champagne

1 339 130 961 front mask STC 1, brown

2 339 150 955 cabinet, top part

5 339 170 958 cassette compartment cover

6 339 230 954 cassette compartment mask, labeled

7 339 929 951 knurled screw for cassette

compartment mask

8 339 928 952 threaded pin for control knob

9 339 299 959 control knob I

10 339 200 960 control knob II

11 339 220 966 eject knob

12 339 905 959 pressure spring for eject knob

13 339 210 954 play knob

14 339 210 955 record knob

15 339 210 956 fast forward knob

16 339 210 957 rewind knob

17 339 210 958 pause knob

18 339 210 959 stop knob

20 339 061 750 rubber foot

23 309 866 985 guide for mains switch

24 339 870 957 guide for eject knob

25 339 870 958 guide for toggle switch

26 339 870 959 guide for counter reset knob

27 339 870 960 guide for drive control

29 339 270 951 counter window

31 339 375 950 cover for level meter

Rec/Play Magnet Support

Position Order No. Description

35 339 340 951 rec/play magnet support, complete

36 339 760 953 crown wheel

37 339 760 952 crown wheel cover

38 339 765 960 switch pawl

41 339 900 965 tension spring

42 339 845 852 rubber buffer

43 339 765 959 bearing angle

Switch Drive

Position Order No. Description

46 339 825 978 switch drive, complete

47 339 825 997 switch shaft

48 339 825 979 switch lever I

49 339 825 980 switch lever

Electrical Parts

Position Order No. Description

S 2 339 440 963 mains switch

53 339 825 985 mains switch rod, complete

54 339 825 986 angle for mains switch

TR 1 339 310 953 mains transformer, complete

59 339 337 952 mains unit module, complete

58 339 653 501 fuse holder

LE 1 309 695 935 power cord

60 339 870 659 tension band

62 309 220 960 toggle switch knob

63 339 230 955 dust cover for toggle witch

65 339 825 987 angle for drive control, left hand

66 339 825 988 angle for drive control, right hand

BU 803 339 540 093 radio socket, complete

309 672 903 socket, 5 contacts

BU 805 339 540 091 headphone socket, complete

339 540 087 headphone socket, 5 contacts

BU 806 339 540 094 remote control socket, complete

339 540 095 socket, 7 contacts

R 1 339 500 953 variable resistor 2x20K

339 335 960 LED indicator High COM, complete

I 1 339 337 953 level indicator, complete

BS 5760 339 335 959 level indicator PCB, complete

D 701/702 309 327 031 LED CQY 85, red

D 704/720 339 529 149 LED CQY 86, green

IC 701 309 368 239 IC U 237 B

IC 702 309 368 238 IC U 247 B

Cassette Mechanism

Position Order No. Description

HSK 1 339 350 850 rec/play head

LK 1 339 355 950 erasing head

M 1 339 300 950 capstan motor

M 2 339 300 951 reel motor

101 339 720 953 head assembly, complete

102 339 725 952 tumbling screw M3x9

103 339 725 957 tumbling plate

104 339 905 951 pressure spring

105 339 905 960 pressure spring

106 339 725 958 erasing head holder

110 339 750 951 rubber idler lever

111 339 810 950 control lever

112 339 810 951 bow

113 339 805 953 rocker arm

115 339 715 957 support

116 339 715 958 notch slider

117 339 785 951 counter holder

118 339 710 951 flywheel, complete

119 339 730 951 flat belt

120 339 035 950 take-up reel plate

121 339 805 952 rocker arm

122 339 805 950 gear wheel I

123 339 805 951 gear wheel II

124 339 928 950 threaded pin M 2x3

125 339 740 952 take-up reel, complete

126 339 740 658 cap

130 339 165 951 cassette compartment

131 339 160 963 switch rocker arm

132 339 710 956 flywheel

133 339 910 957 torsion spring

134 339 910 958 torsion spring, left hand

135 339 735 958 cord, complete

138 339 560 076 reel illumination, complete

141 339 910 959 flat spring

142 339 950 018 steer ball 2.5 mm

143 339 715 951 bearing holder

144 339 715 956 calotte bearing

145 339 900 953 tension spring

146 339 905 961 pressure spring

147 339 910 960 torsion spring

151 339 745 952 brake lever, right hand

152 339 745 951 brake lever, left hand

153 339 745 953 brake ring

154 339 900 958 tension spring

156 339 745 956 brake magnet holder

158 339 845 350 rubber buffer for capstan motor

159 339 735 959 belt disc for capstan motor

160 339 928 950 threaded pin

162 339 715 609 gear bearing

163 339 915 968 earth spring

164 339 715 956 calotte bearing

167 339 755 960 idler roller

168 339 900 966 tension spring

169 339 160 961 eject lock

171 339 780 952 counter

172 339 730 950 square belt for counter

174 339 160 962 eject

175 339 930 950 washer

176 339 765 961 pawl

178 339 915 971 pressure spring

179 339 910 961 torsion spring

180 339 825 989 lever

181 339 765 962 record locking arm

182 339 900 967 tension spring

184 339 825 965 eccentric

185 339 745 954 brake spring

186 339 825 990 turn round lever

188 339 745 661 brake ring

189 339 557 020 insulator

MG 1 339 340 955 play magnet

MG 2 339 340 954 brake magnet

S 8/9 339 405 951 set of contacts, 1-fold

S 11 339 440 462 micro switch, 1 contact

LA 1 339 560 077 miniature bulb 14 V/50 mA

ABS 802 349 355 010 Basic Module BS 5830

Position Order No. Description

C 341/804/1341 309 414 662 Al-electr. cap. 22 µF/35 V

C 348/501/506/ 309 411 654 Al-electr. cap. 10 µF/35 V

507/1348

C 349/1349 309 410 657 Al-electr. cap. 4.7 µF/50 V

C 354/1354 309 414 741 Al-electr. cap. 470 µF/50 V

C 356/1356 309 411 674 Al-electr. cap. 22 µF/16 V

C 357/1357 309 410 655 Al-electr. cap. 2.2 µF/50 V

C 359/1359 309 510 021 foil trimmer 8 pF - 60 pF

C 502 309 414 737 Al-electr. cap. 2200 µF/40 V

C 503 309 414 774 Al-electr. cap. 2200 µF/25 V

FU 501 309 627 918 fuse T 800 mA

FU 502 309 627 902 fuse T 1.25 A

GR 501/502 339 520 046 selen rectifier B 30 C 800

IC 501 339 575 068 IC UA 7824 C

IC 502 339 575 072 IC UA 7812

IC 503 339 575 069 IC UA 7815

L 301/1301 339 345 458 choke coil BS 7/36 K

L 302/1302 339 345 853 filter coil 8/19 kHz

L 801 339 345 950 oscillator coil 85 kHz

R 378/1378 339 509 735 variable resistor 25 K/0.07 W

R 804 339 505 951 variable resistor 2.5 K/0.07 W

R 808 339 509 705 variable resistor 50 K/0.07 W

R 809 339 509 920 variable resistor 5 K/0.07 W

S 804 339 440 950 chamber switch 2x3 contacts

S 806 339 440 951 chamber switch 6 contacts

S 807 339 440 952 chamber switch 6 contacts

T 306-308/803/ 339 556 224 transistor BC 548 C

804/1306-1308

T 801 339 556 026 transistor BD 135

T 802 309 001 114 transistor BD 675

ABS 301/1301 349 355 003 High COM Module BS 5335

Position Order No. Description

C 1 309 411 703 Al-electr. cap. 22 µF/6.3 V

C 2 309 410 668 Al-electr. cap. 4.7 µF/35 V

C 8/11/18 309 412 644 Al-electr. cap. 47 µF/16 V

C 15 309 410 643 Al-electr. cap. 2.2 µF/25 V

C 17/20 309 411 671 Al-electr. cap. 10 µF/16 V

C 22 309 413 486 Al-electr. cap. 100 µF/16 V

C 23 339 580 117 Ta-electr. cap. 2.2 µF/35 V

IC 1 339 575 019 IC U 401 B

IC 2 339 575 020 IC MC 14066 BCP

ABS 821 309 364 982 Univ. Amplifier Module BS 5355

Position Order No. Description

C 1/2 309 410 643 Al-electr. cap. 2.2 µF/25 V

C 3 309 411 677 Al-electr. cap. 10 µF/25 V

IC 1 339 335 855 IC MC 1458 P 1

ABS 822 339 330 853 Univ. Amplifier Module BS 5309

Position Order No. Description

C 1/2 309 410 643 Al-electr. cap. 2.2 µF/25 V

C 3 309 411 677 Al-electr. cap. 10 µF/25 V

IC 1 339 335 855 IC MC 1458 P 1

ABS 801 349 355 011 Pre-Amplifier Module BS 5424

Position Order No. Description

C 303/1303 309 411 674 Al-electr. cap. 22 µF/16 V

C 306/1306 309 411 659 Al-electr. cap. 22 µF/25 V

C 308/1308 339 548 062 Al-electr. cap. 100 µF/3 V

C 313/1313 309 410 642 Al-electr. cap. 1 µF/50 V

C 314/1314 309 461 996 Ta-electr. cap. 0.47 µF/35 V

C 317/1317 309 411 671 Al-electr. cap. 10 µF/16 V

C 1312 309 414 695 Al-electr. cap. 470 µF/25 V

IC 504 309 368 105 IC 7818 UC 18 V

R 326/1326 309 509 735 variable resistor 25 K/0.07 W

S 801 339 440 953 chamber switch

T 301/1301 309 001 211 transistor BC 550 B

T 302/1302 309 001 242 transistor BC 550 C

T 303-305/ 339 556 224 transistor BC 548 C

1303-1305

ABS 803 339 337 950 Function Selection module BS 5349

Position Order No. Description

BU 801 339 540 057 socket, 8 contacts

C 370/1370 309 410 642 Al-electr. cap. 1 µF/50 V

C 371/1371 309 461 947 Al-electr. cap. 1 µF/25 V

C 378 309 414 696 Al-electr. cap. 220 µF/35 V

D 316 339 529 105 LED FLV 310 green

R 394/1394 309 509 733 variable resistor 100 K/0.07 W

S 811 339 440 955 toggle switch 2 x U 3

S 812 339 440 956 toggle switch 4 x U 3

S 813-815/817 339 440 954 toggle switch 2 x UM

T 310/1310 339 556 224 transistor BC 548 C

ABS 809 349 355 012 Cassette Mechanism Control BS 5759

Position Order No. Description

C 701/702/719 309 411 654 Al-electr. cap. 10 µF/35 V

C 705/709/717/ 309 410 642 Al-electr. cap. 1 µF/50 V

723/726

C 706-708/713 309 410 655 Al-electr. cap. 2.2 µF/50 V

C 716 309 410 668 Al-electr. cap. 4.7 µF/35 V

D 701-707/ 309 325 927 diode 1 N 4148

708-714/

715-723/

725-729/

731-734/

736-739/

741-743/

746/748-754/

756-759/

761-764/

766-769/

772-773

IC 702/703/ 309 368 144 IC MC 14001 CP

706/708/711

IC 704 339 575 070 IC MC 14011 CP

IC 707 339 575 071 IC MC 14043 BCP

309 689 905 IC socket, 14 contacts

309 689 904 IC socket, 16 contacts

T 701-704/711/ 339 556 224 transistor BC 548 C

714/716

T 707 339 556 082 transistor BC 677

T 709 339 556 079 transistor BD 135/16

T 712 309 001 024 transistor BD 136/16

ABS 808 339 330 954 Reel Motor Control Module BS 5774

Position Order No. Description

C 741/742 339 580 115 Ta-electr. cap. 0.68 µF/35 V

D 781 309 325 927 diode 1 N 4148

L 701/702 339 345 350 anti-EMI coil

T 731/734 309 001 024 trnasistor BD 136/16

T 732/736/737 339 556 079 transistor BD 135/16

T 738 339 556 224 transistor BC 548 C

ABS 811 339 337 951 Touch Switch Module BS 5758

Position Order No. Description

D 791/797 309 327 031 LED CQY 85 red

S 791-794/ 339 440 964 touch switch 2 x S

796-797

ABS 302/1302 339 335 959 Level Indicator BS 5760

D 701/702 309 327 031 LED CQY 85, red

D 704/710 339 529 149 LED CQY 86, green

IC 701 339 368 239 IC U 237 B

IC 702 339 368 238 IC U 247 B

I 1 339 337 953 level indicator, complete

		Cabinet Parts
Position	Order No.	Description
1	339 130 008	front mask CC 20, brown
1	339 130 009	front mask CC 20, champagne
1	339 130 962	front mask STC 1, champagne
1	339 130 961	front mask STC 1, brown
2	339 150 955	cabinet, top part
5	339 170 958	cassette compartment cover
6	339 230 954	cassette compartment mask, labeled
7	339 929 951	knurled screw for cassette
		compartment mask
8	339 928 952	threaded pin for control knob
9	339 299 959	control knob I
10	339 200 960	control knob II
11	339 220 966	eject knob
12	339 905 959	pressure spring for eject knob
13	339 210 954	play knob
14	339 210 955	record knob
15	339 210 956	fast forward knob
16	339 210 957	rewind knob
17	339 210 958	pause knob
18	339 210 959	stop knob
20	339 061 750	rubber foot
23	309 866 985	guide for mains switch
24	339 870 957	guide for eject knob
25	339 870 958	guide for toggle switch
26	339 870 959	guide for counter reset knob
27	339 870 960	guide for drive control
29	339 270 951	counter window
31	339 375 950	cover for level meter
		Rec/Play Magnet Support
Position	Order No.	Description
35	339 340 951	rec/play magnet support, complete
36	339 760 953	crown wheel
37	339 760 952	crown wheel cover
38	339 765 960	switch pawl
41	339 900 965	tension spring
42	339 845 852	rubber buffer
43	339 765 959	bearing angle
		Switch Drive
Position	Order No.	Description
46	339 825 978	switch drive, complete
47	339 825 997	switch shaft
48	339 825 979	switch lever I
49	339 825 980	switch lever
		Electrical Parts
Position	Order No.	Description
S 2	339 440 963	mains switch
53	339 825 985	mains switch rod, complete
54	339 825 986	angle for mains switch
TR 1	339 310 953	mains transformer, complete
59	339 337 952	mains unit module, complete
58	339 653 501	fuse holder
LE 1	309 695 935	power cord
60	339 870 659	tension band
62	309 220 960	toggle switch knob
63	339 230 955	dust cover for toggle witch
65	339 825 987	angle for drive control, left hand
66	339 825 988	angle for drive control, right hand
BU 803	339 540 093	radio socket, complete
	309 672 903	socket, 5 contacts
BU 805	339 540 091	headphone socket, complete
	339 540 087	headphone socket, 5 contacts
BU 806	339 540 094	remote control socket, complete
	339 540 095	socket, 7 contacts
R 1	339 500 953	variable resistor 2x20K
	339 335 960	LED indicator High COM, complete
I 1	339 337 953	level indicator, complete
BS 5760	339 335 959	level indicator PCB, complete
D 701/702	309 327 031	LED CQY 85, red
D 704/720	339 529 149	LED CQY 86, green
IC 701	309 368 239	IC U 237 B
IC 702	309 368 238	IC U 247 B
		Cassette Mechanism
Position	Order No.	Description
HSK 1	339 350 850	rec/play head
LK 1	339 355 950	erasing head
M 1	339 300 950	capstan motor
M 2	339 300 951	reel motor
101	339 720 953	head assembly, complete
102	339 725 952	tumbling screw M3x9
103	339 725 957	tumbling plate
104	339 905 951	pressure spring
105	339 905 960	pressure spring
106	339 725 958	erasing head holder
110	339 750 951	rubber idler lever
111	339 810 950	control lever
112	339 810 951	bow
113	339 805 953	rocker arm
115	339 715 957	support
116	339 715 958	notch slider
117	339 785 951	counter holder
118	339 710 951	flywheel, complete
119	339 730 951	flat belt
120	339 035 950	take-up reel plate
121	339 805 952	rocker arm
122	339 805 950	gear wheel I
123	339 805 951	gear wheel II
124	339 928 950	threaded pin M 2x3
125	339 740 952	take-up reel, complete
126	339 740 658	cap
130	339 165 951	cassette compartment
131	339 160 963	switch rocker arm
132	339 710 956	flywheel
133	339 910 957	torsion spring
134	339 910 958	torsion spring, left hand
135	339 735 958	cord, complete
138	339 560 076	reel illumination, complete
141	339 910 959	flat spring
142	339 950 018	steer ball 2.5 mm
143	339 715 951	bearing holder
144	339 715 956	calotte bearing
145	339 900 953	tension spring
146	339 905 961	pressure spring
147	339 910 960	torsion spring
151	339 745 952	brake lever, right hand
152	339 745 951	brake lever, left hand
153	339 745 953	brake ring
154	339 900 958	tension spring
156	339 745 956	brake magnet holder
158	339 845 350	rubber buffer for capstan motor
159	339 735 959	belt disc for capstan motor
160	339 928 950	threaded pin
162	339 715 609	gear bearing
163	339 915 968	earth spring
164	339 715 956	calotte bearing
167	339 755 960	idler roller
168	339 900 966	tension spring
169	339 160 961	eject lock
171	339 780 952	counter
172	339 730 950	square belt for counter
174	339 160 962	eject
175	339 930 950	washer
176	339 765 961	pawl
178	339 915 971	pressure spring
179	339 910 961	torsion spring
180	339 825 989	lever
181	339 765 962	record locking arm
182	339 900 967	tension spring
184	339 825 965	eccentric
185	339 745 954	brake spring
186	339 825 990	turn round lever
188	339 745 661	brake ring
189	339 557 020	insulator
MG 1	339 340 955	play magnet
MG 2	339 340 954	brake magnet
S 8/9	339 405 951	set of contacts, 1-fold
S 11	339 440 462	micro switch, 1 contact
LA 1	339 560 077	miniature bulb 14 V/50 mA
ABS 802	349 355 010	Basic Module BS 5830
Position	Order No.	Description
C 341/804/1341	309 414 662	Al-electr. cap. 22 µF/35 V
C 348/501/506/	309 411 654	Al-electr. cap. 10 µF/35 V
507/1348
C 349/1349	309 410 657	Al-electr. cap. 4.7 µF/50 V
C 354/1354	309 414 741	Al-electr. cap. 470 µF/50 V
C 356/1356	309 411 674	Al-electr. cap. 22 µF/16 V
C 357/1357	309 410 655	Al-electr. cap. 2.2 µF/50 V
C 359/1359	309 510 021	foil trimmer 8 pF - 60 pF
C 502	309 414 737	Al-electr. cap. 2200 µF/40 V
C 503	309 414 774	Al-electr. cap. 2200 µF/25 V
FU 501	309 627 918	fuse T 800 mA
FU 502	309 627 902	fuse T 1.25 A
GR 501/502	339 520 046	selen rectifier B 30 C 800
IC 501	339 575 068	IC UA 7824 C
IC 502	339 575 072	IC UA 7812
IC 503	339 575 069	IC UA 7815
L 301/1301	339 345 458	choke coil BS 7/36 K
L 302/1302	339 345 853	filter coil 8/19 kHz
L 801	339 345 950	oscillator coil 85 kHz
R 378/1378	339 509 735	variable resistor 25 K/0.07 W
R 804	339 505 951	variable resistor 2.5 K/0.07 W
R 808	339 509 705	variable resistor 50 K/0.07 W
R 809	339 509 920	variable resistor 5 K/0.07 W
S 804	339 440 950	chamber switch 2x3 contacts
S 806	339 440 951	chamber switch 6 contacts
S 807	339 440 952	chamber switch 6 contacts
T 306-308/803/	339 556 224	transistor BC 548 C
804/1306-1308
T 801	339 556 026	transistor BD 135
T 802	309 001 114	transistor BD 675
ABS 301/1301	349 355 003	High COM Module BS 5335
Position	Order No.	Description
C 1	309 411 703	Al-electr. cap. 22 µF/6.3 V
C 2	309 410 668	Al-electr. cap. 4.7 µF/35 V
C 8/11/18	309 412 644	Al-electr. cap. 47 µF/16 V
C 15	309 410 643	Al-electr. cap. 2.2 µF/25 V
C 17/20	309 411 671	Al-electr. cap. 10 µF/16 V
C 22	309 413 486	Al-electr. cap. 100 µF/16 V
C 23	339 580 117	Ta-electr. cap. 2.2 µF/35 V
IC 1	339 575 019	IC U 401 B
IC 2	339 575 020	IC MC 14066 BCP
ABS 821	309 364 982	Univ. Amplifier Module BS 5355
Position	Order No.	Description
C 1/2	309 410 643	Al-electr. cap. 2.2 µF/25 V
C 3	309 411 677	Al-electr. cap. 10 µF/25 V
IC 1	339 335 855	IC MC 1458 P 1
ABS 822	339 330 853	Univ. Amplifier Module BS 5309
Position	Order No.	Description
C 1/2	309 410 643	Al-electr. cap. 2.2 µF/25 V
C 3	309 411 677	Al-electr. cap. 10 µF/25 V
IC 1	339 335 855	IC MC 1458 P 1
ABS 801	349 355 011	Pre-Amplifier Module BS 5424
Position	Order No.	Description
C 303/1303	309 411 674	Al-electr. cap. 22 µF/16 V
C 306/1306	309 411 659	Al-electr. cap. 22 µF/25 V
C 308/1308	339 548 062	Al-electr. cap. 100 µF/3 V
C 313/1313	309 410 642	Al-electr. cap. 1 µF/50 V
C 314/1314	309 461 996	Ta-electr. cap. 0.47 µF/35 V
C 317/1317	309 411 671	Al-electr. cap. 10 µF/16 V
C 1312	309 414 695	Al-electr. cap. 470 µF/25 V
IC 504	309 368 105	IC 7818 UC 18 V
R 326/1326	309 509 735	variable resistor 25 K/0.07 W
S 801	339 440 953	chamber switch
T 301/1301	309 001 211	transistor BC 550 B
T 302/1302	309 001 242	transistor BC 550 C
T 303-305/	339 556 224	transistor BC 548 C
1303-1305
ABS 803	339 337 950	Function Selection module BS 5349
Position	Order No.	Description
BU 801	339 540 057	socket, 8 contacts
C 370/1370	309 410 642	Al-electr. cap. 1 µF/50 V
C 371/1371	309 461 947	Al-electr. cap. 1 µF/25 V
C 378	309 414 696	Al-electr. cap. 220 µF/35 V
D 316	339 529 105	LED FLV 310 green
R 394/1394	309 509 733	variable resistor 100 K/0.07 W
S 811	339 440 955	toggle switch 2 x U 3
S 812	339 440 956	toggle switch 4 x U 3
S 813-815/817	339 440 954	toggle switch 2 x UM
T 310/1310	339 556 224	transistor BC 548 C
ABS 809	349 355 012	Cassette Mechanism Control BS 5759
Position	Order No.	Description
C 701/702/719	309 411 654	Al-electr. cap. 10 µF/35 V
C 705/709/717/	309 410 642	Al-electr. cap. 1 µF/50 V
723/726
C 706-708/713	309 410 655	Al-electr. cap. 2.2 µF/50 V
C 716	309 410 668	Al-electr. cap. 4.7 µF/35 V
D 701-707/	309 325 927	diode 1 N 4148
708-714/
715-723/
725-729/
731-734/
736-739/
741-743/
746/748-754/
756-759/
761-764/
766-769/
772-773
IC 702/703/	309 368 144	IC MC 14001 CP
706/708/711
IC 704	339 575 070	IC MC 14011 CP
IC 707	339 575 071	IC MC 14043 BCP
	309 689 905	IC socket, 14 contacts
	309 689 904	IC socket, 16 contacts
T 701-704/711/	339 556 224	transistor BC 548 C
714/716
T 707	339 556 082	transistor BC 677
T 709	339 556 079	transistor BD 135/16
T 712	309 001 024	transistor BD 136/16
ABS 808	339 330 954	Reel Motor Control Module BS 5774
Position	Order No.	Description
C 741/742	339 580 115	Ta-electr. cap. 0.68 µF/35 V
D 781	309 325 927	diode 1 N 4148
L 701/702	339 345 350	anti-EMI coil
T 731/734	309 001 024	trnasistor BD 136/16
T 732/736/737	339 556 079	transistor BD 135/16
T 738	339 556 224	transistor BC 548 C
ABS 811	339 337 951	Touch Switch Module BS 5758
Position	Order No.	Description
D 791/797	309 327 031	LED CQY 85 red
S 791-794/	339 440 964	touch switch 2 x S
796-797
ABS 302/1302	339 335 959	Level Indicator BS 5760
D 701/702	309 327 031	LED CQY 85, red
D 704/710	339 529 149	LED CQY 86, green
IC 701	339 368 239	IC U 237 B
IC 702	339 368 238	IC U 247 B
I 1	339 337 953	level indicator, complete

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Service Manual

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Tape Speed:	4.75 cm/s
Speed Tolerance:	± 1 %
Frequency Range:	30-18000 Hz (CrO₂)
	30-16000 Hz (Fe₂O₃)
	30-16000 Hz (FeCr)
	30-18000 Hz (Metal)
Variation of Speed:	± 0.2 % (REC+PLAY)
	± 0.1 % (only PLAY)
Distortion Factor
at 200 nWb/m	<= 3 % (CrO₂)
	<= 1 % (Fe, FeCr)
	<= 2 % (Metal)
S/N Ratio with HIGH COM:	76 dB
Erase Damping:	>= 66 dB
Erase Frequency:	86kHz
Reduction of max. High Frequency Level at 10 KHz,
at 200 nWb/m	<= 12 dB (CrO₂)
	<= 12 dB (Fe₂O₃)
	<= 10 dB (FeCr)
	<= 5 dB (Metal)
L/R Channel Damping:	>= 35 dB (Stereo)
Input Sensitivity:	<= 0.1 mV / kOhm
Input Impedance:	6 kOhm Radio/Micro
	470 kOhm Aux
	220 kOhm Line
Output Voltage:	1.2 V
Output Resistance:	10 kOhm Radio
	8.2 kOhm Line
	270 Ohm Headphome
Playback Deemphasis:	3180 µs / 70 µs (CrO₂)
	3180 µs / 120 µs (Fe₂O₃)
	3180 µs / 120 µs (FeCr)
	3180 µs / 70 µs (Metal)
Multiplex Filter:	19 kHz Pilot Tone Suppression switchable
Mains Voltage:	220/110 Volts
Frequency:	50/60 Hz