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Workshop Notebook » Blog Archive » Beogram 4000
http://notebook.beocentral.com/beogram-4000-2
The definitive Bang and Olufsen reference. Although this turntable appeared to be running at the correct speed the strobe indicator suggested that a large error was present. The fault was due to the indicator mirror being incorrectly positioned so that it was showing the 60Hz rings instead of the 50 Hz ones, for 50 Hz operation the mirror assembly should be moved out to the position furthest from the turntable hub on the adjustable slide. [ Beogram 4000.
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Workshop Notebook » Blog Archive » Beovision LX 5500
http://notebook.beocentral.com/beovision-lx-5500
The definitive Bang and Olufsen reference.
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Beocord VX 5000
http://beocentral.com/beocordvx5000
The definitive Bang and Olufsen reference. Video Recorders, DVD and Satellite. 1989-1990) VHS video recorder, Hi-Fi stereo, Datalink, optional Nicam stereo decoder. Type numbers: 4530, 4531, 4532, 4533, 4536, 4537, 4538, 4539. The VX 5000 was designed for use with the LX. Complex and well made, the VX 5000 was always an expensive machine. The level of complexity was such that the launch of the machine was delayed whilst the finer points were perfected, though when it finally did go on sale it sold we...
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Workshop Notebook » Blog Archive » Beocord 1700/2200
http://notebook.beocentral.com/beocord-17002200
The definitive Bang and Olufsen reference. Hum on both output channels can be due to AC field from the mains transformer being picked up by the power supply regulator. Adding a 10uF 50V capacitor between the base of 2TR23 and a local ground point (e.g. the cathode of 2D3) will eliminate this problem, a similar addition was made in the factory to later examples. [ Beocord 1700.
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Workshop Notebook » Blog Archive » Beomaster 6000 4channel
http://notebook.beocentral.com/beomaster-6000-4channel-3
The definitive Bang and Olufsen reference.
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Workshop Notebook » Blog Archive » Beovision MX 4000
http://notebook.beocentral.com/beovision-mx-4000
The definitive Bang and Olufsen reference.
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Workshop Notebook » Blog Archive » Beocenter 7700
http://notebook.beocentral.com/beocenter-7700-2
The definitive Bang and Olufsen reference.
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Workshop Notebook » Blog Archive » Beocord 8004
http://notebook.beocentral.com/beocord-8004-2
The definitive Bang and Olufsen reference. All the mechanical functions of this cassette deck worked but there was no sound and the PPM display was blank. Recordings could bot be made either, and it was soon discovered that the 7V bias supply was absent from pin 5 of both Dolby NR processor ICs 2IC101 and 2IC201. The cause was 2C3 (220uF 10V) which was short circuit. This is a common fault with the smaller Beocord models ( Beocord 4500.
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Workshop Notebook » Blog Archive » Beovision 601
http://notebook.beocentral.com/beovision-601
The definitive Bang and Olufsen reference.
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Workshop Notebook » Blog Archive » Beovision MX 3500
http://notebook.beocentral.com/beovision-mx-3500
The definitive Bang and Olufsen reference. This set worked normally except that it couldn’t be switched completely off, pressing stand by only muted the sound and picture, a dull grey glow still being visible on the screen with the tube heaters on and the EHT still present. When first connected to the mains supply the set showed a narrow white line across the screen but gave a normal picture when the TV key of the Beolink 1000 was pressed.