I think I've blown my internal fuse/s on my technics amplifier model number su-ch7. How can I fix myself?

assuming you mean the technics su-ch7 amplifier from your previous post
I have searched fixya and this forum below has been referred before on fixya previously for advice on your amplifier
http://www.allaboutcircuits.com/search?q=technic+su-ch7
and the original posting
http://www.fixya.com/support/t7155686-just_bought_tecnics_su_ch7_integrated

by touching the "power" button once more this should take it out of standby

Greetings
Is there any indicator on or its all off?
anyway i will assume that there is none
1.check power fuse if blown.
2.check power transformer if there is any output voltage
3.check internal fuses
more information will give a better idea.
try these steps and hope this helps.

Good luck finding them, About the only way is if some one tuss one out that quit working, Evan the repair shops don,t keep that sort of stuff around they toss it out.

post the problem at www.allaboutcircuits.com forum.
there u will meet a guy by the name R!f@@.
He is very good at fixing technic amps

If interested in selling send me an e-mail,
[email protected]

Hello I have exactly the same problem did you have an answer since your question.
We think that the problem is power supplier...
Best regards,
Patrick.

I have a technics too, and faced the same problem. The solution is very simple just ensure the +ve and -ve wires are connected correctly for each speaker to the amp. Eg. red wire to the red knob and black wire to the black on both ends. sometimes this arises because the wires are of just one color however there will be some marking on the wire to indicate which is +ve and -ve. This took care of the overload problem.

Hi Will, I searched for flat cables ,seem to no longer be stocked. If you are interested in selling the whole system let me know. I have one working condition with cables, would like to have spare units(parts). I will check one more site on cables for you.
Contact Gregg at: [email protected]

If I understand your posting correctly, the amp works using the Aux In connectors but not using the VCR1 even when VCR1 is selected correct? If that is the case, there is an internal electronic switching IC (TA9263 I think) that may be defective. This is not a complex repair and can be confirmed easily by any shop that does audio repair. They will trace the incoming signal with an oscilloscope to the IC and see nothing come out when VCR1 is selected. The IC costs less than $10.

Dan