Table of Contents
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ASR Audio Systems Friedrich Schäfer P.O. Box 1722, D- 35 727 Herborn
We thank you for your confidence set into our firm and our product and request you a lot of joy while
listening music with your new ASR Emitter!
We as manufacturers, the firm ASR Audio Systems Friedrich Schäfer, produced for you the Emitter with
great care exclusively with highest quality and selected components.
If you have questions that your dealer can't answer, please, call us during the normal business hours, Monday
till Friday from 7.30 to 15.00 o'clock middle European time.
The operating manual consists of two parts : The essential basics are discussed at first,
the details are explained more precisely in the following part.
Table of content
The Operating Concept Of The Emitter, unpacking of the equipment, Scope of delivery
Set up and power connection of the Emitters
The grounding of your equipment, the ground lift switch, the accumulator power unit
The run in period, the connection of devices at the input
Direct input, connection of a tape deck or of an auxiliary equipment
The connection of loudspeakers, second output, headphones, direct output
Operating elements of the Emitter
Controls and remote control of the Emitter
Table of the remote control keys and its meaning
Tuning of the balance and the level adjust
Tuning of the display and of the energy saving circuit
Set up of the configuration, function control LED's
Protection circuits : Short circuit, distortion switch off, offset, too high temperature
What to do in the case of malfunction
General drawing of the Control- LED's on the main PCB board, function overview
Set up and installation of the optional phono board
!!! Please, read carefully this operating manual before you set up your Emitter and
Operating manual ASR Emitter I HD and II HD Page 1
+49 27 72 / 4 29 05
Page 2
Page 3
Page 4
Page 5
Page 6
Page 7
Page 8
Page 9
Page 10
Page 11
Page 12
Page 13
Page 14
Page 15
Page 16
Page 17
Page 18
Page 19
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Related Manuals for ASR Emitter I HD
Summary of Contents for ASR Emitter I HD
- Page 1 We thank you for your confidence set into our firm and our product and request you a lot of joy while listening music with your new ASR Emitter! We as manufacturers, the firm ASR Audio Systems Friedrich Schäfer, produced for you the Emitter with great care exclusively with highest quality and selected components.
- Page 2 The place of installation At the place of installation the ASR Emitter should not be exposed to moisture, extremely high or low temperatures. In such a way, set up the Emitter that the air can circulate freely to the cooling elements. The waste heat resulting through the high quiescent current of the Class A/B- construction of the Emitter must be able to flow off freely in order to avoid overheating.
- Page 3 The distance to the Emitter should be more than 20 cm. The power connection of the Emitter The ASR Emitter is equipped with separated power units in order to achieve best possible tonal results. When the amplifier is switched OFF or is turned in position "Standby", only a small auxiliary transformer with very small power consumption is working.
- Page 4 ASR Audio Systems Friedrich Schäfer P.O. Box 1722, D- 35 727 Herborn +49 27 72 / 4 29 05 each case a separate, shielded power cable with at least 2,5 qmm per core to your fuse box place. Please protect this connection with an 16 ampere slow blow fuse, installed in your fuse box.
- Page 5 ASR Audio Systems Friedrich Schäfer P.O. Box 1722, D- 35 727 Herborn +49 27 72 / 4 29 05 · When the accumulators are empty, the charging transformer is switched ON again. Now the Emitter is disconnected from the accumulators and supplied out of the charging unit.
- Page 6 ASR Audio Systems Friedrich Schäfer P.O. Box 1722, D- 35 727 Herborn +49 27 72 / 4 29 05 back panel are supplied with a red colour ring, the sockets of the left channel are marked with a black colour ring.
- Page 7 ASR Audio Systems Friedrich Schäfer P.O. Box 1722, D- 35 727 Herborn +49 27 72 / 4 29 05 To avoid this please switch ON Dip switch No. 5 positioned on the left side of the supplementary board. (see also page 13 : Set up of the configuration).
- Page 8 ASR Audio Systems Friedrich Schäfer P.O. Box 1722, D- 35 727 Herborn +49 27 72 / 4 29 05 Second output (option) That connection pole terminals for the second outputs are named with B. The function is announced by lighting up a yellow LED at every of the two output relays and by two illumination letters ”B”...
- Page 9 ASR Audio Systems Friedrich Schäfer P.O. Box 1722, D- 35 727 Herborn +49 27 72 / 4 29 05 Headphones Output A, second sensitiveness position Second loudspeaker output, second sensitiveness position A+B 1 Both loudspeaker outputs are switched ON at the first position.
- Page 10 ASR Audio Systems Friedrich Schäfer P.O. Box 1722, D- 35 727 Herborn +49 27 72 / 4 29 05 Programming the remote controller The delivered remote controller is programmable and can operate up to 8 devices. Towards the statement of the operating manual of the remote controller you are not allowed to activate the press button "reset"...
- Page 11 ASR Audio Systems Friedrich Schäfer P.O. Box 1722, D- 35 727 Herborn +49 27 72 / 4 29 05 The prefixed numbers represent the remote control code (RC5 code, address 19) 16 VOLUME UP (arrows upwards) increases the level 17 VOLUME DOWN...
- Page 12 ASR Audio Systems Friedrich Schäfer P.O. Box 1722, D- 35 727 Herborn +49 27 72 / 4 29 05 The Emitter offers in series even further setting options to you - Balance level control of the output channels - Input level adjust...
- Page 13 ASR Audio Systems Friedrich Schäfer P.O. Box 1722, D- 35 727 Herborn +49 27 72 / 4 29 05 Setting of the display mode and the display brightness The display is adjusted by the factory that it switches Off 10 seconds after every operating activity. However, you can also adjust the Emitter in the way that the display complete or parts of it shine all time.
- Page 14 ASR Audio Systems Friedrich Schäfer P.O. Box 1722, D- 35 727 Herborn +49 27 72 / 4 29 05 If you would like to modify the switching point, the Emitter needs at first to be put into the position "Standby". The adjusting mode is adjusted by double pressing the monitor button and announced by the flashing of the ”Energy”...
- Page 15 ASR Audio Systems Friedrich Schäfer P.O. Box 1722, D- 35 727 Herborn +49 27 72 / 4 29 05 Two yellow LED’s each in front and at the back shows the supply of the output stage, two green ones near the block shaped plastic foil capacitor shows the voltage of the driver stage.
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Page 16: Troubleshooting
ASR Audio Systems Friedrich Schäfer P.O. Box 1722, D- 35 727 Herborn +49 27 72 / 4 29 05 If the amplifier output should not be DC-free (Offset), the same illuminated letters flash and a yellow LED which is designated on the motherboard with "Offset" lights up. - Page 17 ASR Audio Systems Friedrich Schäfer P.O. Box 1722, D- 35 727 Herborn +49 27 72 / 4 29 05 The lock from above onto the main PCB board The signal is led directly over the Input- and monitor relay to the relay stepped level control circuit. The amplifier consists from an FET- input amplifier IC, that controls a MOS- FET driver stage.
- Page 18 ASR Audio Systems Friedrich Schäfer P.O. Box 1722, D- 35 727 Herborn +49 27 72 / 4 29 05 Cleaning For cleaning our sets we recommend you to use the Anti-Static Plastic Cleaner and the Cleaning Cloth contained in the cleaning set.
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Page 19: Technical Data
Sine-wave power 20-20.000 Hz, 0.1% distortions, both channels operation Emitter I HD 8 Ohm 2x160 Watt, 4 ohms 2x290 Watt, 2 ohms 2x520 Watt, 1 ohm 2x 750 Watt Emitter II HD 8 Ohm 2x280 Watt, 4 ohms 2x500 Watt, 2 ohms 2x900 Watt, 1 ohm 2x1400 Watt Maximum impulse power values are approximately the rated output multiplies by 1,5 Distortions from 50 milliwatt to -1db under rated output with 1 kHz <0.02, of 20-20.000 Hz <0.1%... - Page 20 +49 27 72 / 4 29 05 Mounting and the setting of the phono board That ASR- phono board is a complete Phono equaliser preamplifier for the connection of MM- or MC- systems to the ASR Emitter I and II plus and HD.
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