Dual C 810 User manual

Service Manual
Technical Data
COUNTER
&
=, DOLBY NA
TAPE
A
i
Edition February 1980
C
810
INPUT
i
AON
oe oe
STEREO
CASSETTE
DECK
The unit meets or exceeds the requirements of DIN 45 500 for
domestic HiFi equipment. The data given is based on the cur-
rent DIN reference tapes.
Tape speed
Deviation from correct speed
Flutter and wow
Weighted RMS
To DIN for reproduction only
To DIN for recording/reproduction
Frequency response (ref. to DIN tolerances)
Standard Fe tape
Cr09 tape
FeCr tape
Signal-to-noise-ratio (weighted)
With Dolby NR
Fe 63 dB
Cr02 63dB
FeCr 66dB
4.75 cm/s
+0.7%
+0.045 %
+0.09 %
+013 %
20 — 16,000 Hz
20 — 16,500 Hz
20 — 17,000 Hz
Channel separation at 1000 Hz
between stereo channels
in opposite direction
Erasure at 1000 Hz
Oscillator (push-pull oscillator)
Inputs
(senstitivity at 0 dB)
Microphone (1/4" coaxial jack))
Receiver/amplifier (DIN connector)
Receiver/amplifier (RCA jacks)
Outputs
Receiver/amplifier (DIN connector)
Receiver/amplifier (RCA jacks)
Headphones (volume adjustable)
(1/4" coaxial jack)
Fast winding time for C 60 cassettes
Tape monitor (electronically) shut-off time
Line voltage
Line frequency
Power requirement
40 dB
70dB
70 dB
105 kHz
0.3mV/ 5kOhm
1 mV/10 kOhm
80 mV/70 kOhm
580 mV/ 5kOhm
580 mV/ 1kOhm
4 — 2000 Ohm
60 sec.
1.5 sec.
120 V and 230 V
50/60 Hz
approx. 15 Watt

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USA and Canada modells
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Bei Verwendung des IC NE 646 B (IC 102) When using the IC NE 646 B (IC 102) the Lors de l'utilisation du court-circuiteur,
ist die nebenstehende Beschaltung giiltig. circuitry shown on the right side is valid. iC NE 646 B (IC 102), le schéma de
branchement ci-contre est valable.
Cc 190
1000 p
IC’s von der Bestiickungsseite gesehen Transistoren von der AnschluBseite gesehen
IC’s as seen from the top side Transistors as seen from the connecting side
IC’s vus du cété éléments Transistors vus du cété des connexions
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Anderungen
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Alterations
reserved
Sous
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de
modifications
Ausgabe
1/Mai
1979
408 402
101
702
105
108 107 109
113
117
166
115
123,
324
125
126
127
128 129
130
136
135
167
138 142
153
146
147 148 149
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152
190
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180
225 226
494
228
229
230
233
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286
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241 267
163
338
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283
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326 383
250 250
28%
28
288
260
180 248
162
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tie
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203
212211
210 220
181221
182
183179178
177_176
175 173
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189
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120
121
122
124
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151
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140
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148
149
180
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104
203
205
207
206
109
214 209
127
178 178
220
221
222
223
173
225
217
232
229°
231
234 286 235
238
236
167
287
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242 244 245
246
250
243
251
l
192
183
601
309
311
202 208
213210
211215216
7
219
176
226
175
228
172
171233
170
169
237
168239
166 240
301

Functional
description
C
810
electronic
section
{n
this
unit,
all
active
functions
necessary
for
record
and
play-
back
except
the
HF
oscillator,
tape-type
selection
and
DIN
input
amplifier
are
combined
in
two
integrated
circuits
per
channel.
Playback
The voltage induced in the magnetic head (approximately 300 UV
during playback of the DIN reference level) is fed to the playback
amplifier input (PIN 27). One part of the output voltage (PIN 25)
reaches the inverting input (PIN 26) via the degenerative feedback
network R 106, R 109 and C 112, thereby determining amplifi-
cation and corresponding equalization. By altering the magnetic
head resonance by means of capacitors C 101 — C 104, the fre-
quency response in the treble range may be corrected. Mid-range
may be altered slightly by means of R 107 or R 108. Playback
equalization is switched from 120 Ms to 70 Us by means of
T 101. The playback Jevel is set using VR 102 to 580 mV at the
output jack by playing back the Dolby reference level. This is
necessary if the Dolby circuit is to function perfectly. The
playback signal from VR 102 now reaches the electronic record/
playback switching circuit via PIN 4 and is fed to the Dolby
processor IC 102 via PIN 5. If the Dolby selector switch S 2 — 1
is switched off, the signal in the Dolby circuit is amplified by
approximately 26 dB. If S 2 — 1 is switched on, in the case of a
low-value signal, amplification is carried out dependent upon
frequency and level.
From output (PIN 7) of the Dolby circuit, the signal reaches the
LINE output via S 1 — 4, also reaching PIN 10 and PIN 19 from
IC 101. PIN- 19 is the input to the headphone amplifier, PIN 10
the input to the DIN output amplifier. The headphone signal is
amplified to a value of approximately 1.6 V and then fed to the
headphone jack via PIN 18. The DIN output signal is only fed
via PIN 9 to outputs 3 and 5 of the DIN jack during playback so
as to eliminate input crosstalk during recording via DIN connec-
tion leads. The DIN output amplifier is arranged as an impedance
transformer and is not characterized by voltage amplification.
{n order to prevent switching noise reaching the output jacks, the
output signal is muted by means of switch S 6 when the start key
is not depressed. Once the start key is depressed, the signal
through T 109 or T 110 at the input to the Dolby circuit remains
muted until the capstan reaches the appropriate speed so as to
eliminate audible ‘high-level howling’.
Recording
Three different sources are available for recording, all of them
being fed to the record level regulator P 101 by means of S3 —1.
The line input leads directly to the input selector switch while
the signa! at the DIN input is amplified by means of T 401. This
amplification stage is designed in such a way that very satisfactory
signal to noise ratios are achieved at energization Jevels in ac-
cordance with DIN 45511. Thesignal at the Mic input is amplified
by approximately 43 dB via PIN 23 in the IC 101. The signal is
then fed from PIN 21 to the input selector switch,
Having passed through the record level regulator P 101, the
signal is fed to the electronic record/playback switch PIN 4, and,
via PIN 5, thereafter taking the identical path to the Dolby
circuit as previously described in the section '’playback’’. Between
PIN 2 and PIN 6 of the Dolby integrated circuits, a 19 kHz
(MPX) filter may be switched in as desired using S 2 — 2 in order
to suppress any residual pilot frequencies when recording from
radio. Such residual pilot frequencies could impair effective
functioning of the Dolby processor.
Unlike playback, the signal (PIN 3), unaffected by the Dolby
process, reaches the outputs and switch S 2 — 1 viaS 1 — 4. If
S 2 — 1 is actuated, the record signal at PIN 7 is “dolbyized"’.
The recording amplifier is likewise located in IC 101. The recording
current is set using VR 104 before the input (PIN 11) as is level
matching for the various types of tape by T 103 or T 104. The
record equalization degenerative feedback network is arranged
between PIN 13 (output) and PIN 12. Equalization for Cr- or
FeCr tapes is switched via T 102 and T 103.
The record signal is fed to the magnetic head via wave trap L102,
magnetic bias being provided by VR 106. The frequency of the
HEF oscillator (T 105, T 106) is approximately 105 kHz. The
operating point for FeCr- or Fe tapes is set by VR 107 and
VR 108.
Record level indicator
During both record and playback, the output signal reaches the
meter amplifier, likewise located in IC 101 (PIN 17). The DC
voltage resulting at the output (PIN 15) is then fed to the
moving-coil instruments of the record level indicator. Calibration
is by means of VR 103. In order to allow for reduced modulability
of tapes at high frequencies, frequency response correction is
carried out by R 125 and C 124. Boosting by 400 Hz at 10 kHz
amounts to approximately 10 dB. Indicator return is attenuated
by means of C 123 in order to transform the record level indicator
into a sort of “semi-peak-value indicator”.
Limit switch
The limit switch serves to switch the unit off whenever a cassette
has reached the end of the tape. Furthermore, the unit must be
switched off if the tape is not being properly taken up, e. g.
owing to too great friction in the cassette.
If the ring magnet no longer rotates, pulses cease to occur at
the output of IC 301. If the pause function is not depressed,
IC 302 then triggers the stop function via T 306 by means of
the pull magnet PL.
Power section
The power section supplies the electronic system with a negative
and a positive operating voltage of approximately 11.5 V in each
case which is regulated via T 107 or T 108. The motor is supplied
with a non-regulated voltage of approximately 13 V as a regulator
circuit is located within the motor.

Dual C 810 — electrical alignment
Necessary instruments and cassettes
2 Millivoltmeters
1 AF oscillator
1 Oscilloscope
1 Frequency counter
1 Test cassette 400 Hz —20 dB, 10 kHz —20 dB
1 Test cassette Fe703-reference medium section, CrO3-reference
medium section
1 Test cassette 400 Hz Dolby level 200 nWb/m
General notes
Before adjustment, the magnetic head and all ferrous components
in contact with the tape must be de-magnetized!
Readjustment must be carried out in the sequence stated.
Playback
Magnetic head adjustment
Remove the cover plate at the record/playback head, insert the
test cassette (section determined for gap adjustment), 10 kHz
~—20 dB.
Connect the millivoltmeters to outputs L and R (cynch connection
jacks). If only one instrument is available, then switch the outputs
in parallel.
Fe, >
Using the adjustment screw to the left side of the magnetic head,
adjust for maximum voltage. After adjustment, the adjustment
screw should be secured in position with locking lacquer.
Note: with parallel switched outputs, there will be secondary
peaks; adjust for the main peak.
The difference between channel 1 and channel 2 at 10 kHz can
be at max. 5 dB.
Playback level
Insert test cassette, 400 Hz Dolby level
Fe, Dolby NR, >
Adjust for 580 mV £0.25 GB in each case
For track 1 use VR 102 at cynch output L
For track 2 use VR 202 at cynch output R
Playback frequency response
Insert test cassette, 400 Hz —20 dB, 10 kHz —20 dB
Fe,» (Dolby: off)
Both level sections of the test cassette should have the identical
Output voltage at outputs L and R.
VU-meter
Fe, record, Dolby NR, »
AF oscillator at input, millivoltmeter (AC) at output, record level
regulators VR 101 and VR 201 fully clockwise.
Set the AF oscillator to 400 Hz and alter the input signal at the
cassette deck so that a level of 580 mV occurs at outputs L and
R.
Using potentiometers VR 103, the VU-meter left channel and
VR 203, the VU-meter right channel adjust for 0 dB record level.
Background noise
Screen amplifier, ensure that the magnetic head is free of hum.
Fe, pause, >
Maximum measured background noise at outputs L and R less
than 3 mV, measured with a 20 Hz filter (e.g. Sennheiser FO 55,
curve 2.20 Hz —3 dB) and rms rectification of meter.
HF generator
Cr, record, >
Connect frequency counter between point Z and earth and adjust
the oscillator coil (L_ 103) core to give an indicated value of 105 kHz.
HF wave traps
Connect the millivoitmeter (AC) or oscilloscope to R 122 (left
channel) and R 222 (right channel) and, using wave trap L 102
or L 202, adjust for minimum HF.
HF-magnetic bias
Insert test cassette, Cr-reference medium section.
Cr,record, >
For basic adjustment, a millivoitmeter (AC) may be inserted
between measuring point X (right channel) or Y (left channel)
and earth. For basic adjustment, a value of 55 mV is set using
VR 105 or VR 106.
More precise adjustment should be carried out in the following
manner:
Record 400 Hz and 10 kHz with —20 dB (VU-meter). Compare
the levels On reproduction. If there is no uniform level, correct
HF bias.
For alignment of track 1 (left channel) use VR 106.
For alignment of track 2 (right channel) use VR 105.
Less HF bias = treble emphasis
More HF bias = treble de-emphasis
Insert test cassette, Fe-reference medium section
Fe, record, »
Record 400 Hz and 10 kHz with —20 dB (VU-meter). Compare
the levels on reproduction. If there is no uniform level, correct
HF bias using VR 108.
Insert test cassette, FeCr-reference medium section
FeCr, record, >
Record 400 Hz and 10 kHz with —20 dB (VU-meter). If there is
no uniform level, correct HF bias using VR 107.
Record level
Insert test cassette, CrO9-reference medium section
Cr, record, Dolby NR, MPX, >
Line/DIN level contro! (P 101 and P 201) open. Record 400 Hz
with 0 dB (VU-meter) and then check playback level using the
VU-meters.
Using VR 104 (VU-meter left) and VR 204 (VU-meter right)
alter the recording current so that the playback level is equal to
the record level.
Overall frequency response
The overall frequency response for all types of tape must tie
within the specified tolerances in accordance with DIN 45 500,
sheet 4. Recording should take place at aleve! of — 26 dB as in-
dicated on the VU-meters.

Fig. 2 Connection bush plate (printed wiring side)
Fig. 1 Alignment positions (equippment side)
Fig. 3 Final shutt-off plate (printed wiring side)
Fig. 4 Power plate (printed wiring side)

Fig. 5 Base plate (printed wiring side)
Mechanical section
General information
The item numbers listed refer to the lists of replacement parts
and exploded diagrams below.
1.
Removing the housing plate 1 and the baseplate
Remove the four machine screws 2 and the four washers 3.
Withdraw the housing plate 1 from behind.
In order to remove the baseplate, the four machine screws 44
on the underside of the unit should be loosened and both the
supporting feet 41 and the three sheet metal screws must be
removed.
Removing the fascia 18
Remove the housing plate 1 as described above.
Withdraw the rotary turn switches 31 and 32, the four push
keys 21 and the rotary turn switch 20.
The three countersunk head screws 19 on the upper and
lower fascia should be removed.
The fascia 18 may now be taken off.
a) Removing the cassette retaining plate 117
When repairing the mechanical section, it is advisable to remove
the cassette retaining plate 117 complete with both stop but-
tons 116. To do this, proceed in the proper fashion as follows:
Press the connecting spindle 12 into the bearing spindle 10
and remove it. Pivot the protective head cover 118 upwards.
With the aid of a screwdriver, extract both retaining lugs Lon
the cassette retaining plate 117. Carefully withdraw the cas-
sette retaining plate 117 from the unit and remove the bulb
114 together with its rubber socket.
b) Disengaging the contactor on the cassette retaining plate 123
In order to check the playback or fast wind/rewind function
without inserting a cassette, the contactor F of the cassette
grip 123 must be disengaged as follows:
Operating the playback key or the fast wind/rewind key, the
contactor F must be disengaged from the left cassettegrip 123,
thereby allowing the key to click into position.
Motor
a) Replacement
In order to replace the motor 154, the motor belt and the
flat belt should be firstly removed from the drive pulley
141. Rotate the motor in a counterclockwise direction —
bayonet-type socket — and remove the motor 154. Now
solder off the connection leads from the printed circuit
board.
Loosen the grub screw and remove the drive pulley 141.
Screw off the retaining plate of the motor 154 and fix it
to the new motor.
Place the drive pulley 141 onto the spindle of the new
motor 154. Set the clearance gap between drive pulley
141 and retaining plate at approximately 0.3 mm, then
tighten the grub screw (fig. 7). Solder the connection
leads to the printed circuit board (red = plus). Insert the
motor into the unit and, by rotating it in a clockwise
direction — bayonet-type socket — lock it in position.
Replace the flat belt and motor belt onto the drive pulley
141.
b) Motor speed — tape speed
Test assembly as described below under 6. “Speed accuracy.”
The tape speed may be adjusted by means of an insulated
screwdriver on the reverse side of the motor (fig. 7).
The speed is correctly adjusted if the measured result is
between —1 and +0.5 % deviation.
Drive belts
In order to replace defective drive belts — belt arrangement
diagram fig. 8 —, proceed as follows:
The motor belt A may be removed or replaced with no diffi-
culty. Remove the three machine screws 183. Take off the
lower plate 155. The flat belt B and the counter belt C may
now be replaced. Withdraw the flywheel 144 from the
bearing bush.
10
o2me
A
ir
go
po
143
Fig. 7
Fig. 8
Important:
The polyethylene washer 174 on the front side of the unit
will fall out.
The counter belt C 2 and the take-up belt D may now be re-
placed. When the belts have been properly replaced, replace
the polyethylene washer 174 onto the spindle (capstan) of
the flywheel 144. Furthermore, it is advisable to press the
fast forward or rewind key and to clean the capstan and the
drive belt with a cloth soaked in methylated spirit.

. Speed accuracy
Measure with a Wow meter (e.g. Woelke ME 101 or ME 104
or Franz EMT 420 A) and Wow test cassette 3150.
Setting the test instrument:
0.3 % measurement range, weighted.
Important: In order to avoid incorrect measurement caused
by jamming tape travel, it is recommended to
operate the forward and rewind button with the
test cassette inserted.
Typical measured values (playback) of the Dual cassette deck.
£0.08 —0.12 %
Individual higher deflections should not be weighted
since they are the result of bad tape-head contact
caused be detrition, dust or felt particles.
If necessary, check the following points:
a) Clean pinch rolier and capstan
b) Check pinch rojler for freedom of movement
Fig. 9
155
144
Ci : Ee vie = D
C2
11
c) The take-up torque, which is adjusted at the coupling,
should be 55 1 mN m (55 + 10 pem). Slightly fluctuating
values have no effect on the speed accuracy. At the same
time, the torque on the non-driven side should be 2— 6 pcm.
A higher or varying value suggests that the bearing of the
left winding gear is defective.
d) Replace the flat belt
e) Replace flywheel
7. Pressure lever 0.1 mN m= 1 pem
The pressure lever 128 and the V spring 127 may be removed
after the lock washer 167 has been loosened. Reassembly in-
volves the reverse procedure. However, please ensure that the
V spring 127 is correctly repositioned. With the pause button
disengaged (device switched to play), the pinch roller should
be pressed against the capstan by the V spring 127 with a
force of 400 p t ] QP. lf necessary, this should be alteredby
pretensioning of the V spring 127.
Correct functioning of the pressure lever 128, may also be
checked using the test cassette (Dual item no. 232 797) inthe
following manner.
Insert the test cassettes. Press the play key. Brake the driver
101 on the supply real side slowly until the real comes to astop.
The tape tension should be greater than 10 mN m (100 pcm).
With the “‘pause’’ button engaged and the start button com-
pletely depressed, the clearance between the capstan and the
pinch roller should be 0.4 — 1 mm. This may be adjusted by
bending the pressure lever.
8. Brake plate
When replacing the rubber sleeves 122 on the brake plate 131,
please bear the following in mind:
During fast forward/rewind, there must be a clearance on the
non-driven side of 0.1 — 0.2 mm between the rubber sieeve
and the brake drum of the driver 101. if necessary, bend the
lugs on the brake plate 131 (fig. 10).
9. a) Coupling
To ensure satisfactory winding, the winding torque of the
coupling must be correct. The tape tension during winding
should be 5.5 + 1mN m (55 + pcm). Thisshould be measured
using a test cassette (Dual part number 232 797). Readjust-
ment of the entire device may be carried out as follows:
1) Isolate the unit from the mains!
2) Press the fast rewind key (<<).
3) Rotate the left driver 101 until 1 of the 2 adjustment holes
becomes visible through the aperture B in the cassette
retaining plate (fig. 10). Then, using the special adjustment
key E (Dua! part number 203 933), adjust the take-up
torque. Rotation in a clockwise direction increases the
take-up torque. Rotation in a counter clockwise direction
reduces the take-up torque.
b) Coupling pully torque
In order to ensure uniform torque during fast wind/rewind,
the upper section of the coupling pulley 136 is separated from
the lower drive diameter of the take-up belt by a friction
coupling (fig. 11).
Checking:
Insert the special torque test cassette {Dual part number 238 600).
Press the fast forward/rewind key. Over a series of measurements,
open and close the cassette grip 123 so that the pointer returns
to "0" on both scales. The torque should measure 8 — 13 mNm
(80 — 130 pcm). Typical values for new drive pulleys are 9 — 14 mN
m (90 —~ 140 pcm). If necessary, hold the coupling pulley 136 in
a fixed position. Adjust the friction coupling as necessary with
the aid of a spanner or flat-nosed pliers.
Important: The main belt A must not display any signs of slip or
dirt contamination!

Fig. 11
10. Fast rewind
There must be a minimum clearance of 0.2 mm between the
right winding gear 156 and the coupling pulley 143. if neces-
sary, the lug K on the head mounting plate 107 should be
bent slightly (refer to figure 6).
11. Record lever
The record lever should be adjusted in such a way that, when
the record button is depressed , the record/playback switch $ 1
rests against the stop. This may be adjusted by bending the
record lever.
12. Record/playback head, erase head
When replacing the record/playback head 103, please note
the following prior adjustment process.
Place the record/playback head 103 together with the leaf
spring onto the head mount. Then, by means of the sleeves
and machine screws Z, it should be secured so that the tape
guides B are in line with the tape guides on the head mount
B 1 and those on the erase head B 2 (fig. 12). Final adjust-
ment should be undertaken in the manner described in the
section ‘electrical alignment’.
Fig. 12
13, Cleaning/lubrication
Always clean the unit when servicing it or repairing it. In
order for the unit to function properly, the record/playback
head 103, the erase head 102, the pinch roller 128 and the
capstan should always be spotlesly clean. These parts are best
cleaned with a cotton cloth or cotton bud soaked in methyla-
ted spirit. On no account should metal objects be used. The
surface of the head should never be touched with bare fingers.
Atl bearing and sliding parts are adequately lubricated at the
works. Re-lubrication is not normally required for several
years, since most important parts are provided with oil
reservoirs. The motor bearings are designed as tong life oil
reservoirs and therefore require no lubrication.
Replacement parts
Description Description
1
|
263040}
1
|
Housing
plate
210 488
|
2
|
Machine
screw
2
|
226
856]
4
|
Machine
screw
M4x8
24
|
263046
|
1
|
Head
cover
3
|
239049
|
4
|
Washer
43
27
|
262991
|
1
|
Record
lever
4
|
262946]
1
|
V-spring
30
|
262937
|
1
|
Felt
disc
5
|
263010
Push
button
31
|
262998
|
1
|
R
rotary
turn
switch
6
|
262913}
1
|
Power
switch
(Europe)
(S
8)
32
|
262997]
1
|
L
rotary
turn
switch
262914]
1
|
Power
switch
(USA/Canada)
(S
8)
33
|
263
246
|
1
|
Counter
complete
7
|
262969]
1
|
Leaf
spring
240
880
|
1
|
Headphone
jack
8
|
210480;
1
|
Machine
screw
M3x6
34
|
263
224)
1
|
Mic
jack
9
|
263006
|
1
|
Bearing
bracket
35
|
263247]
1
|
Rear
panel
Europe
10
|
263007]
1
|
Bearing
spindle
263
248
|
1
|
Rear
panei
USA/Canada
11
|
262948]
1
|
Pressure
spring
36
|
263050;
1
|
Power
transformer
Europe
12
|
262
992
Connecting
spindle
263051
|
1
|
Power
transformer
USA/Canada
13
|
263.005
|
1
|
Bearing
lever
37
|
243750]
1
|
Power
cable
Europe
18
|
263
2441
1
|
Front
trim
plate
metallic
232
995
Power
cable
USA/Canada
263
245}
1
Front
trim
plate
metallic
brown
38
|
237548]
1
Grommet
for
electrical
system
with
pull
19
|
203 475
}10
|
Countersunk
head
screw
M3x8
relief
a
263
000
|
3
|
Push
button
39
|
262925}
1
|
Power
board
unequipped
Europe
263
045]
1
|
Front
frame
262
926
|
1
|
Power
board
unequipped
USA/Canada
cre
Be
os
ee
12

Fig. 13 Exploded view
13

Fig. 14 Exploded view
14

52
53
101
102
103
104
105
106
107
109
100
HAAAHAAAA HAHAHA MNONN Ferrer COTVMCCOVUCOCD
wo
244 819
262 949
210 586
210 492
263 237
263 250
263 055
263 029
263 056
263 251
263 026
=m osemoNseBRARO
NO
263 252
209 726
209 867
263 034
263 034
247 651
247 651
263 238
263 238
263 034
247 672
262 912
262 905
263 221
263 225
263 227
263 226
263 226
263 025 | 11
263 025 | 11
263 025/11
262 025} 11
245 356! 2
245 356] 2
263027] 1
263 240) 1
263 025 | 11
263 025 | 11
263 025/11
263 239
247 656
262 911
263 041
263 223
229 938
238 163
238 163
263 222
263 222
263 232
228 209
247 599
263 230
263 039
263 231
263 038
246 964 | 1
260 866} 1
263 058 | 2
235 455 | 1
235 454 | 1
262959 | 1
262 939 | 1
262 971
262 960
262 942
262 950
209 353} 2
mHNNN WNHNNNWWN WH
NN =
PSB NNW NYONNNNNNNM NN
a eee
Description Part.No.
Fuse insert T 0.5 A/250 V 262 966
Unit support 262 970
Washer 262 951
Machine screw M3x 15 246 782
Indicator frame complete 228 200
Indicator complete 263 060
Tape
motion
monitor
complete
263
061
Integrated
circuit
DN
6838
(IC
301)
263
062
Connection jack board complete 263 063
Connection
board
complete
262
958
262 965
2 SC 1327 U 262 984
263 064
Base plate 262 985
Base plate complete 262 947
G-fuse insert TOA4A 262 945
169 ae
DD 1S 2473
262 967
DD 1S 2473
262 961
DR W 005
262 989
DR W005
262 938
DZ UZ-12B
DZUZ-12B 262 963
1$ 2473 263 066
264 113
Coil 2.2 mH 263 068
MPxX filter 262 954
Coil 262 957
Oscillator coil 263 069
Switch (record) 262 974
Switch (Dolby/MPX) 262 975
Switch (input) 263 070
Switch (tape) 262 941
262 953
2 SC 828-S 262944
2 SC 828-S
2 SC 828 A-RS 245 770
2 SC 828 A-RS 245 769
2 SC 1383 NC-R 263 071
2SA 683 NC-R 263 042
2 SC 828-S 262 988
2 SC 828-S 262 943
2 SC 828-S 262 956
TA 7617 AP 210 142
LM 1011A 210 143
210 144
Trimmer 50 kQ 210 145
Trimmer 20 kQ 210146
Trimmer 200 kQ2 210 586
Trimmer 5kQ 210 549
Trimmer 100 kQQ 257 138
Trimmer 100 kQQ 243 237
Trimmer 500 (2 210 556
Trimmer 500 2 220 876
Glow
lamp
16
V/60
mA
223 774
Rubber
sleeve
210
469
Separator
210
472
LED
board
complete
210
486
LED TLG 124 green 210 488
LED
board
complete
210
433
LED
TLG
124
red
210 475
oe ty 210 480
Shipping carton 213.471
Operating instructions 217 616
Driver assembly complete 262 918
Erase head complete 262915
Record/playback head complete 262 920
Record rail
Tension spring 263 023
ley 263 036
Head mounting plate 310 | 263 036
Pressure spring
Spindle T 306 | 263 028
Ball G2 IC 302 | 263 030
PO oe ee a ee OG
ry
NNADBANNNWA H-HhAHRH HK KHAN HK OWnR KH KH HHH HK
|= NN = Savy
—
Description
Stop spring
Pulley A
Head mounting
Lamp
Rubber sleeve
Stop key
Cassette retaining plate
Head view finder
Pull magnet
Release
Stop arm
Left cassette retainer complete
Pushbutton panel complete
Right cassette retainer complete
V-spring
V-spring
Pressure lever complete
Cassette stop
Leaf spring
Brake plate
Rubber sleeve
Tension spring
Slottet jaw
Coupling pulley complete
Belt set complete
Winding gear left complete
Main lever
Retaining plate
Drive pulley complete
Coupling
Intermediate gear
Driven plate
Pressure spring
Coupling lever
Spacer pulley
Pause lever
V-spring
15 V/50 mA
Motor mounting assembly
Motor complete
Bottom plate complete
Winding gear right complete
Intermediate gear
V-spring
Switch latch
Lock washer 1.2
Lock washer 1.5
Lock washer 1.9
Lock washer 2.3
Lock washer 3.2
Washer 3.2
Washer 2.1
Washer 3.7
Washer 15
Polythene washer 2.4/6/0.5
Machine screw M26x 3
Machine screw M26x 6
Machine screw M3 x 3
Machine screw M3 x 4
Machine screw M3 x 8
Machine screw M3 x12
Machine screw M2 x 8
Machine screw M3 x 5
Machine screw M3 x 6
Self-tapping screw B29x65
Machine screw M26x 8
Microswitch (pause)
Slide switch (muting)
Contact (play)
Tape-end switch-off board complete
SR 1 K-2
SR 1 K-2
2S D 592 NC-S
AN 6250
rrr
15
Alterations reserved!