Service manuals, schematics, eproms for electrical technicians
MURPHY TB 191.
Type: 
(DJVU)
(DJVU)Size
49.2 KB
49.2 KB
Page
1
1
Category
AUDIO
SERVICE MANUAL
AUDIO
SERVICE MANUAL
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Good luck to the repair!
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Looking for similar murphy manual?
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MURPHY TB 191. 191
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Relevant AUDIO forum topics:
i have an speaker mackie srm450
the problem is need a lot of signal for start to work i don't now why? i all ready checked all the input and routing an looks fine
tried to upload the schematic but i can not do
When the speaker is connected to the 220V network, a hum appears in the bass speaker after 1-2 seconds. There are no buttons that do not work, the red power-on LED is constantly on. What is the reason, where to look for the fault?
Sziasztok!
Van egy a címben említett házimozi erősítőm ami nem kapcsol be.
Sok fórumtémában írták a betáp utáni kondit, ezt cseréltem valóban hibás volt, 5,8nF volt 22nF helyett. Nem hozott megoldást.
Ellenállások értékei jók, a T651 trafón a bemeneten kb 20 volt AC-t mérek, ha rövidrezárom a Q654-et akkor 0V-ot. D659-et kimérve jónak láttam.
Valakinek ötlete, hogy merre menjek tovább?
Megoldás: PRY fesz csak 2sec-re volt meg, utána tiltott a processzor. Ez a 2 sec is kellett volna ó, hogy kapcsolja a relét, nem kapcsolta. Q652 tranyó volt a hibás.
Van egy a címben említett házimozi erősítőm ami nem kapcsol be.
Sok fórumtémában írták a betáp utáni kondit, ezt cseréltem valóban hibás volt, 5,8nF volt 22nF helyett. Nem hozott megoldást.
Ellenállások értékei jók, a T651 trafón a bemeneten kb 20 volt AC-t mérek, ha rövidrezárom a Q654-et akkor 0V-ot. D659-et kimérve jónak láttam.
Valakinek ötlete, hogy merre menjek tovább?
Megoldás: PRY fesz csak 2sec-re volt meg, utána tiltott a processzor. Ez a 2 sec is kellett volna ó, hogy kapcsolja a relét, nem kapcsolta. Q652 tranyó volt a hibás.
Sziasztok!
Ebben a rádióban mivel lehet helyettesíteni a végfok icét, ha valaki tudja legyen szíves írni. A gép típusa Pioneer DEH-1500USB, és azt jelzi Audio error.
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