Weird transformer

[PRR]

MISTAKE!!!

Do NOT cut jumper 173!!

The drawing is right, my text was wrong.

[guidoilieff]

MISTAKE!!!

Do NOT cut jumper 173!!

The drawing is right, my text was wrong.

That's fine. Thanks for the warning!

It works!!

[guidoilieff]

Yes.

EDIT!!!   Cut jumpers JW172 JW173 JW174.
EDIT!!!  Do NOT cut jumper 173!!

Feed 0.5V signal: L to JW175, Gnd to JW176, R to JW177

Hey, im sorry. I said its working because the ic got warm (37/38 centigrades) and when I discharged the capacitors it made a big spark but now when I connected a speaker nothing happened.

I plugged the fan to check if the amp was on without a power button but its not.


Do you think the problem may be that I have no way to switch it on like this?



this is what I found on page 70:

7-25. IC PIN FUNCTIONS
• IC501 MASTER CONTROL (M306622 MA-A01FP)

Pin No.  Pin Name         I/O   Function
1          STK-MUTE        O      Power amp ON/OFF signal output
2          POWER            O      Power ON/OFF signal output
3          F-RELAY           O      Front speaker relay control output







(manual: http://diagramas.diagramasde.com/audio/Sony_HCD-GRX80_RXD8.pdf )

[guidoilieff]

Yes.

EDIT!!!   Cut jumpers JW172 JW173 JW174.
EDIT!!!  Do NOT cut jumper 173!!

Feed 0.5V signal: L to JW175, Gnd to JW176, R to JW177

I'm sorry to insist but do you think it will have trouble powering on? Thanks