Phonoland

Hi,
I have a problem with my rowe R86 jukebox there is no sound coming from the top right speaker, I have replaced the transistors and several capacitors but no luck.
everything is fine going in to the amp but not coming out also when I turn the balance control I get sound from the left speaker no matter which way it is turned.
any help would be appreciated.

Thanks,
Dan

Dan,
Have you determined that your wires going from the transformer package to the speaker are good?
Is the lower RH speaker working ? Is that speaker good ?
If you changed output transistors, did you re-set the bias ? ( This MUST be done !) Ron Rich

What is the procedure for setting the bias?
Yes both bottom speakers are working just the top right speaker is not working.
I did check it with a known good speaker and still no sound.
I hooked up a seperate audio source into the wires going from the output of the amp to the speakers and i got sound from both top speakers but then i got no sound from the bottom speakers.

Thanks,
Dan

You need to follow the sound path. There are 15 seperate connections just from the cartridge to the amp. The sound leaves the amp and goes to the transformer pack and on to the crossover and on to the speakers. If you check the print you will see the 2 bass speakers are hooked in a double hot mono setup.

Hi Dan,

I think the time has come to send your amplifier to a Rowe Ami specialist for repair.

Regards
Alan Hood
ami-man
UK

Thank you all for the help you have given me on this amplifier.
I just purchased a new preamp board from Bruce at AB Jukebox and it should be here this week.
In the meantime I have some questions about the .1 ohm and .2 ohm resistors on the driver boards.
The schematic that I have says they should be 2 watt wire wound resistors but it looks like 1 watt carbon resistors that are on the boards.
Which ones are correct?

Thanks,
Dan

Dan,
What does the first band on the resistor look like ?--is it double (in thickness) the size of the other bands--
If so, it indicates a two watt resistor-- I would use the schematic value-- Ron Rich

Yes the first band is wider than the others. I learn something new every day.
Thank you Ron for your help.

Dan