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filip_kbh

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Viewing 20 posts - 101 through 120 (of 165 total)
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  • in reply to: Beomaster 7000 2-way does not work #45898
    filip_kbh
    BRONZE Member

    D10 was indeed not working. Also R18 was defective. After replacing these two, I now have +40V back on p14-6. Yay. A small victory.

    There are still some problems though. On P18-5 I now don’t have -40V – I have no idea why as it worked before. And none of the voltages on P15 are correct, so I don’t have 28V on p15-6, I don’t have 12V on P15-3, and I don’t have -12V on P15-2. Sigh. P24 also still gives around 5V instead of the specified 11V.

    Location: Copenhagen
    in reply to: Beocord vx5000 #46426
    filip_kbh
    BRONZE Member

    Die Bogener – I love your pictures – but when I press them, they never zoom in; they always take me to pic-upload.de 🙁

    Location: Copenhagen
    in reply to: BeoLink 7000 not moving down #46518
    filip_kbh
    BRONZE Member

    When in Auto mode, it will only move the upper panel down when you lift it up from the table. If you want it to lie straight on the table you must do it manually.

    Location: Copenhagen
    in reply to: Beocord vx5000 #46416
    filip_kbh
    BRONZE Member

    Can you run the VTR without a cassette? See section 7-1 in the service manual.

    Also, if the fan motor is blocked, the VTR goes into standby within 1-2 seconds according to the service manual.

    Location: Copenhagen
    in reply to: Beocord vx5000 #46414
    filip_kbh
    BRONZE Member

    Did you clean the black part with the white pin with an arrow in the middle – not sure what it is called – to the left of the drawer motor. It will corrode and could cause all sorts of problems.

    Location: Copenhagen
    in reply to: Beocord vx5000 #46417
    filip_kbh
    BRONZE Member

    This thread by Die Bogener is also worth a read.

    Location: Copenhagen
    in reply to: Beomaster 7000 2-way does not work #45897
    filip_kbh
    BRONZE Member

    Looks  like D10 is shorted. Will change it.

    Location: Copenhagen
    in reply to: Beomaster 7000 2-way does not work #45896
    filip_kbh
    BRONZE Member

    Finally had some time to look again, and also I understand the schematics a bit better now.

    Checking the voltages on board P9. On pin 3 there should be 40V but I measure around 26V – it drops ever so slightly and keeps dropping until 25.87V when I measure with the multimeter. 40V is supposed to come from 2P14-6.

    On board 2 P14, pin 6 gives me also around 26V – logically. Seems like it passes through C10 which I did not change – it measures 57uf capacitance and should be 47 – so I guess it is slightly out of spec – could that be the issue?. P18 measures the specified -40V.

    On board 2 P24 should give me 11V but it gives around 5V.

    Any help is appreciated.

     

    Location: Copenhagen
    in reply to: Verbinden von Beocenter 9300 mit Beolink 6000 #46283
    filip_kbh
    BRONZE Member

    Keine Ursache. Du brauchst 2 Powerlinkkabel (die hast du schon), und 2 Stromkabel (davon hast du schon einen). Also brauchst du eigentlich nur einen Stromkabel (Euro 8-Form) zu kaufen, oder du hast einen übrig von einem anderen Produkt, den du verwendet kannst.

    Location: Copenhagen
    in reply to: Verbinden von Beocenter 9300 mit Beolink 6000 #46281
    filip_kbh
    BRONZE Member

    Falsch! Die beiden Lautsprecher benötigen Stromversorgung.

    Location: Copenhagen
    in reply to: Beogram 6500 only one channel working #46043
    filip_kbh
    BRONZE Member

    Look at the muting relay. It may have corroded.

    Location: Copenhagen
    in reply to: Beomaster 7000 2-way does not work #45895
    filip_kbh
    BRONZE Member

    yes. I have an RDS BL7000. Worked before the recap of the BM.

    Location: Copenhagen
    in reply to: Beomaster 7000 2-way does not work #45893
    filip_kbh
    BRONZE Member

    Also no readout of RDS. Guess I will have to seek professional help.

    Location: Copenhagen
    in reply to: Beomaster 7000 2-way does not work #45891
    filip_kbh
    BRONZE Member

    Well, that was an easy fix. A wire had broken off. After soldering it on, I also soldered one pin on the big chip on the panel as it looked slightly suspicious, and now 2-way IR is back. It now reports the radio channel. Yay! Still no read out of Volume, and it seems like the range is limited.

    Location: Copenhagen
    in reply to: Beomaster 7000 2-way does not work #45890
    filip_kbh
    BRONZE Member

    I’m getting a little bit frustrated. 1-way function was working. I decided I wanted to play a new record that I bought today, so I assembled the Beomaster. Now, IR does not work at all. And I didn’t touch anything. Must be a connection, I guess.

    Location: Copenhagen
    in reply to: Beomaster 7000 2-way does not work #45889
    filip_kbh
    BRONZE Member

    Regarding TR10:

    Base to Collector: 0.570 V 3.3 M Ohm

    Base to Emitter: 0.273 V 333 Ohm

    The diodes have been tested and they check out fine. I have inspected the board and there are no cracks as far as I can see.

    Location: Copenhagen
    in reply to: Beomaster 7000 2-way does not work #45885
    filip_kbh
    BRONZE Member

    Hm. I have about 28V on the diodes

    Location: Copenhagen
    in reply to: Beomaster 7000 2-way does not work #45884
    filip_kbh
    BRONZE Member

    Hmm – I have a hard time trusting my ESR metre. On the front panel board, I get open line readings on these:

    C3, C5, C7, C8, C9, C11, C12, C16, C18, C23, C24

    However, testing with the multimeter, only these ceramics give me no reading/reaction:

    C5, C11, C23, C24. Still it’s a lot of ceramics …

    Putting power on the board, only C5 is suspicious with a voltage across it of 0.142 V DC

    Location: Copenhagen
    in reply to: Member status #45273
    filip_kbh
    BRONZE Member

    Thanks 🙂

    Location: Copenhagen
    in reply to: Beomaster 7000 2-way does not work #45882
    filip_kbh
    BRONZE Member

    I have a Beolink 7000 and Beolink 5000. Both of them worked before I recapped the Beomaster. Highly unlikely that both of them would fail at the same time – especially since I repaired their 2-way communication module 1-2  years ago.

    Location: Copenhagen
Viewing 20 posts - 101 through 120 (of 165 total)