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Audio equipment

SONY HCD-GTX77 does not turn on

fenix.9876

hace 5 años

good evening colleagues this time I have this equipment that when connected to the electricity network shows the demo about 2 seconds and then it stays blinking from the red and green stamby led I have reviewed it and found 2 filters of 3300mf at 50v in the amplification stage a little inflated replace it nothing and disconnect the protection pin and nothing I have disassembled the STK and the fault persists thank you very much for what you can help me

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drilker

290

hace 5 años

Check if after the LED flashes make any changes in the voltages

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fenix.9876

hace 5 años

ok, I'll do it

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drilker

290

hace 5 años

One test you can do is disconnect the flex. as the unit is cd for example. disconnect and try to see if it still does the same to you

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fenix.9876

hace 5 años

Already disconnect the cd and the cassettes and nothing remains the same

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EVELIO RIOS H

9.700

hace 5 años

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hace 5 años

Fenix guide you with the diagram and comment on the IC550 voltages.

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fenix.9876

hace 5 años

on all the pins of the IC550 I have no voltage according to the diagram says that in 1 and 6 there must be 16.5v but there is nothing

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EVELIO RIOS H

9.700

hace 5 años

Is there AC voltage on the CN1214 connector?

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fenix.9876

hace 5 años

I can tell you that I put this equipment together without the STK and I connect it and I start normal I don't know why it happened when I put it together I started it all right I changed the stk412-170 and it already gave normal sound and ready thanks friends for your help

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