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Audio equipment
philips equipment on source voltage
Televisor Philips E8
Televisor Philips E8
7 Soluciones
18 Reparaciones
hace 5 años
hace 5 años
Hello colleagues, I need your help, it turns out that I have a mini-component philips fw-c557 that burned out the audio output stk 412-030, it is removed from the integrated and the device turned on normal with all its functions as I bought the stk but before installing it voltages at the source and where the integrated is welded and the voltages are not the same as it appears in the diagram some are high I do not want to put elstk for fear of burning again check each component probe and everything is fine I think the voltage will be High is because it is without the stk load? It should be noted that the voltages A1 A2 B1 and B2 of the output come directly from the rectifier bridges of the source please help what is in red are the current voltages that the device has and in black those that should have
9.700
hace 5 años
Friend the voltages is because there is no load (integrated). Do you put the STK412-030 and in the diagram you put the STK412-030I?
hace 5 años
Amigo evelio the one he brought was the stk 412-030i but I didn't find it and they sold me the 412-030 because I took a chance and I put the stk that I bought and it worked well it sounds and everything but it follows the 1.3 volt in the output channels that I can be and when I raised the volume a tick is heard when the numbering that could be increased
hace 5 años
Thanks for your input Evelio I tell you that I already solved the tic tic problem when the volume goes up and the output is fine and 100% working the voltage that you tell me of the TRANSISTOR 7653 ARE OF OV IN THEIR THREE TERMINALS I think that Is it okay what if a little pop is heard in the speakers when I turn on the equipment only, from there will everything be normal?
hace 5 años
I tell you that when I kept checking I didn't notice anything out of the ordinary what I did was solve the ic
TDA7468D-7501
HEF4052BT-7694
NJM4560M-7695
NJM4556AM-7601
M62320FP-7403
Clean well and puff worked, the tick of the volume is no longer heard when that goes up if you notice that when the equipment is turned off or with the minimum volume the VU METER front needles oscillate a bit even so off but in general it works that way I am using it and so far I have not had any surprises if you know the reason why the needles oscillate I would appreciate it
hace 5 años
Not what happened is that when the stk was damaged the first time it was disassembled to review it but without time I left it abandoned in a drain that I have to start working on something else and so far I resume the repair of the team I talk about 9 months there and then I imagine that because of dirt or rust on the plate because if the entire device was dirty, the welds in general were very dark, maybe because of that
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