Service manuals, schematics, eproms for electrical technicians
TENTO VEF PMA 287 C.
Type: 
(DJVU)
(DJVU)Size
98.6 KB
98.6 KB
Page
1
1
Category
AUDIO
SERVICE MANUAL
AUDIO
SERVICE MANUAL
If you get stuck in repairing a defective appliance download this repair information for help. See below.
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Good luck to the repair!
Please do not offer the downloaded file for sell only use it for personal usage!
Looking for similar tento manual?
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TENTO VEF PMA 287 C.
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Relevant AUDIO forum topics:
Sziasztok!
A fenti HIFI kijelzőjén a PROTECT hibaüzenet villog. Végfok panelt lehúzva sem változik a helyzet.
Üdv: Wolf
i have a problem with a CD player Toshiba XR-9127, i have made all the measures and at 99% it's the pickup, the problem is that i cant find it nowheare , is ther an equivalent ?
Thanks
Carmelo
From Italy
Thanks
Carmelo
From Italy
I have and found most of the voltages as indicated on the circuit diagram, till op amp M 5218P; are near those specifed. The output on the centre of the two power transistors of both the channels are also alright.
While looking at the voltages on test points as mentioned on the page 7 for setting up quiscent current, these cannot be set.
Bit of history, the amplifier was lying unused for long time. Nothing in it has burnt. It was never opened earlier than this time, couple of days back.
While looking at the voltages on test points as mentioned on the page 7 for setting up quiscent current, these cannot be set.
Bit of history, the amplifier was lying unused for long time. Nothing in it has burnt. It was never opened earlier than this time, couple of days back.
While I was probing for voltages with DMM, with probe on collector of TR413 one of the fuses blew up. Later same thing happened on the other channel as well.
With the above as background can a Good Samaritan figure out feasibility of repair.
i am unable to upload service manual as file size is 7.3 mb
Kedves Kollégák!
Napi bánataimat feledtetni elővettem egy Bőhm 60-as erősítőt. (csöves, 4- csatornás,2 x EL34)
Szeretném elkezdeni a rendbetételét, de nincs hozzá rajzom. Ami fönn van a Tanyán, az csak egy szűk termékleírás.
Az lenne a kérésem, hogy amennyiben rendelkeztek kapcsolási rajzzal, azt osszátok már meg velem...és persze a Többiekkel is.
Köszönettel: stonhy
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