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6. Further Hints and Tips

6.1 Transcribing onto Another Tape Recorder (Dubbing)

Without having to alter stationary connections to your sound system,

recordings may be copied onto another open-reel (or cassette) re-
corder by using the DUBBING socket.

 Stereo Lead K 541 should

be used to connect the SG 631 LOGIC to the RADIO socket of the other
recorder. (The output level control

 does not affect the dubbing

output.)

6.2 Monitoring via the MONITOR Output

 the power amplifier of your sound system has a monitor input, you may

use the system's loudspeakers for acoustic monitoring of your recording
by connecting the MONITOR socket of the SG 631 LOGIC to the MONI-

TOR input of the amplifier (UHER Stereo Lead K 541 will be needed).

Switching for off-tape or from-source monitoring may be accomplished
either from the tape recorder or from the amplifier. When switching from
the tape recorder, the monitor switch of the amplifier must be pre-set
for off-tape monitoring. On the other hand, to use the amplifier's switch
to select the mode of monitoring, the monitor switch of the SG 631 LOGIC

must be in TAPE position.

6.3 Sound for Slide Shows

Sound for a slide show and the control pulses that trigger slide change
should be recorded separately. When working with the half-track tape
head assembly (Z 401), only monophonic recording is possible as the

control pulses must be recorded on the lower track (see Fig. 4 "SLIDE +

MONO") of the tape. Moreover, during playback through the power

amplifier of a hi-fi system the volume of the control track channel must

be turned down to zero in order to render the 1 kHz control pulses
inaudible. On the other hand, if the quarter-track tape heads (Mount

Z

 are used, sound for the slide showing may be stereophonic (see

Fig. 4 "SLIDE + STEREO"). It should be noted that only tape speeds 3%
or

 ips may be used for recording the sound and control tracks for

slide shows. Before starting to record, write a script detailing the order
in which the slides are to be shown together with the commenting texts
and the background music to be employed. Referring to the script, you

may use the master control (5) , when recording, to fade in and out

the microphone input for the spoken comments and the radio or phono

input for the musical background. To fade over from the microphone
input to the radio or phono input, evenly turn the level of the microphone
input down to zero (the mid-position of the master control) and evenly
increase the level of the music input from zero to the full strength de-
sired. If the spoken commentary is to be accompanied by a soft musical

background, a mixer (like UHER Mix 500 A 124) must be used. Con-
nect the mixer via UHER Stereo Lead K 541 to the RADIO socket of
the SG 631 LOGIC. Read the instruction manual enclosed with the mixer

for instructions on using mixer controls to fade inputs in, out and over.
To check the order of the slide series, slide changing may be manually
signalled while recording. With automatic slide projectors slide changes

may be signalled with the projector's remote control unit, however.

Once the recording of the sound track has been completed, the tape
should be rewound and the slide magazine of the projector returned to
its beginning position for recording the control track.

47

Содержание SG 631 Logic

Страница 1: ......

Страница 2: ...ed oper ating instructions and recommend that you read them carefully If however you are already very familiar with the operation of modern tape machines you will simply need to read certain sections...

Страница 3: ...ays use reels of the same size and of the same material together see sec 6 10 5 Make certain that the CUEING switch is set to 0 for all modes of operation except CUEING to avoid tape spilling see sec...

Страница 4: ...Contents 28...

Страница 5: ...29...

Страница 6: ...n any tilted position In all operating positions however care must be taken that the spools are securely held onto the hub spindles as described in sec 1 6 below 1 3 Extending Connecting Leads When ma...

Страница 7: ...ard circuit to its alert function Fuses for the D C voltages in the machine may also burn out when the guard circuit is activated Such fuses should be replaced only by a service technician as the caus...

Страница 8: ...three pronged mandrel A should be turned to the right or to the left until it jumps down into the grooves of the stationary setion The adapter is then prevented from falling off The inner ring B of th...

Страница 9: ...d along with it On pressing the power switch and actuating the START or FAST FORWARD key the tape lead will wind onto the take up reel until the transparent or metal coated switching foil appears The...

Страница 10: ...nother actuate the RECORD PAUSE and START J3 keys The function indicators above the keys will light up 6 Press the zero reset button of the counter to mark the beginning of the recording 7 Using the m...

Страница 11: ...t the headphones are connected see sees 2 2 2 4 and 2 7 2 Switch on recorder by pressing POWER button The function indi cator above the STOP key must light up 3 Load tape reels and lock Thread tape an...

Страница 12: ...n Input signals at pins 3 2 and 5 2 2 ground should be between 0 1 mV and 80 mV All commercially available condenser microphones with DIN 45326 8 pin plug may be connected to this socket The plus pole...

Страница 13: ...4 2 2 ground of this socket may be between 1 mV and 200 mV input impedance 27 kohms For in put voltages over 250 mV it is advisable to use the PHONO input socket Output signals delivered to pins 3 2 a...

Страница 14: ...680 kohms per channel This socket is for connecting a starting switch see sec 6 9 when operating with a timer When using UHER Timer A 403 the SG 631 LOGIC is automatically switched to RECORD and STAR...

Страница 15: ...and monitoring through headphones with the MONITOR but ton 9 switched from TAPE to SOURCE position see also sec 3 7 3 2 Radio Phono Record Level Controls L 3 and R Knobs 5 and are for setting the rec...

Страница 16: ...and monitoring through headphones with the MONITOR but ton 9 switched from TAPE to SOURCE position see also sec 3 7 3 2 Radio Phono Record Level Controls L 3 and R Knobs 5 and are for setting the rec...

Страница 17: ...imiting circuit that when the record level is too high pointer in red field of meter reduces the record signal to a manageable level for the duration of the overloading The degree of overloading is sh...

Страница 18: ...g to be checked acoustically at once during record for in B position playback of the signal just recorded is directly off the tape On the other hand with A monitoring the signal delivered by the input...

Страница 19: ...s the SG 631 LOGIC to fast forward wind It may be actuated directly from any other deck function setting When the switch is engaged the green function indicator above it lights up 3 11 START Key On li...

Страница 20: ...ch turn switch to position 1 the tape reels may then be turned by hand Slowly turning the take up reel with one hand while slightly braking the supply reel with the other permits the playback to be he...

Страница 21: ...d Consequently after altering the tape speed do not for get to reset the speed to exactly 19 cm s 71 2 ips using the strobo scope to assure accuracy Fine speed adjustment should be made only after the...

Страница 22: ...then threading the tape see sec 1 6 make certain that the reels are securely locked onto the spindles and that the right switches for tape type switch and reel size switch have been activated see also...

Страница 23: ...l red for the right channel For playback the MONITOR switch on the SG 631 LOGIC must be in TAPE position Set volume tone and channel balance in accordance with the operating instructions for your ampl...

Страница 24: ...track channel must be turned down to zero in order to render the 1 kHz control pulses inaudible On the other hand if the quarter track tape heads Mount Z 411 are used sound for the slide showing may...

Страница 25: ...company During record the mode selector may be set at either MONO 1 or MONO 2 It is advisable to make a test telephone call in order to make a record level test marking or remembering the setting of t...

Страница 26: ...IC with UHER Timer A 403 The timer will switch on the power supply for the SG 631 LOGIC as described in the operating instructions for the timer For recording thread the tape as described in sec 1 6 a...

Страница 27: ...st pull the cover cap in front of the head mount up and off The magnetic heads D E F and G the tape guides H I J and K the reversing pins L M O P and Q will then be easily accessible and clogging depo...

Страница 28: ...V a ips 20 10 000 Hz 33 4 ips 20 16 000 Hz 7 2 ips 20 25 000 Hz For max record level of tape approx 1 5 dB 3 For 0 dB meter reading 1 Better than 60 dB Crosstalk at 1 kHz in Stereo Operation Crosstal...

Страница 29: ......

Страница 30: ......

Страница 31: ...UHER WERKE MUNCHEN 366 48210 DEF lll 035 1179 R Printed in Germany...

Страница 32: ......

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