Service manuals, schematics, eproms for electrical technicians
BRAUN BS37 BATTERY RADIO SCH
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AUDIO
SERVICE MANUAL
AUDIO
SERVICE MANUAL
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Looking for similar braun manual?
Good luck to the repair!
Please do not offer the downloaded file for sell only use it for personal usage!
Looking for similar braun manual?
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BRAUN BS-37 RADIO BS37 BATTERY BS 37
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Relevant AUDIO forum topics:
Hiya
I am repairing a Dynacord Powermate 1000-2 mixer/amp and have a question about DC blocking capacitors in the signal path.
I am getting a slowly dropping DC on the DISP1 node (output of I6AA op-amp) on switch-on. This is causing the green "signal present" LED to come on on that channel which takes about 30 seconds to turn off. It seems to be caused by a charge on C35A that dissipates slowly through R54A (1M Ohm).
It seems to me, it would have been better to put the C35A on the output of I5AA with a resistor to ground. Is there a reason why this would not work.
I have checked all relevant components and power supplies and I cannot find any faults but I'm sure this is not normal behaviour.
Any help greatly appreciated.
Üdv. A jelenlegi hangváltómba bipoláris elkók vannak, de a magas hangok nem a legszebben jönnek ki. Gondoltam a polipropilén kondenzátorra, azzal jobb lehet?
Köszönöm a segítséget!
Köszönöm a segítséget!
Hi!
Megtaláltak egy ilyennel.
Beázott, letisztítottam, átforrasztottam elindult, nyektettem 1,5 órát, egyszer kikapcsoltam, majd be, erre nincs hang . Látszólag hangol, mert van hozzá egy kis kijelző, meg adót is talál, de nem szól.
A rádio chip 2 kimenetén kellene lennie HF jelnek?
Mert nincs, de a vég se nagyon akar szólni, hiába érek a 7 pinhez ..
Mi lehet?
Megtaláltak egy ilyennel.
Beázott, letisztítottam, átforrasztottam elindult, nyektettem 1,5 órát, egyszer kikapcsoltam, majd be, erre nincs hang . Látszólag hangol, mert van hozzá egy kis kijelző, meg adót is talál, de nem szól.
A rádio chip 2 kimenetén kellene lennie HF jelnek?
Mert nincs, de a vég se nagyon akar szólni, hiába érek a 7 pinhez ..
Mi lehet?
Üdvözletem Mesterek !Gyors segítség ! TDA7454 helyet mi jó? Tudom a HQ nál van és nem is drága de nekem most kell megoldanom.Egy lábkiosztás jól jönne. Van 7384 és 86.Betehető helyette? Köszönettel:Öreg Tom :help:
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