Korg Poly800/EX800 Users

Bernard,

If you have a voltmeter check for a good solid 5 volts in the power 
section. The print is here in the file section. VR1 can be adjusted 
to trim the voltage. You shouldn't need to change any components 
unless you can't get the 5 volts dc. You can also check the -5 volts.

Fran aka Narfman 

--- In korgpolyex@yahoogroups.com, "b_e_r_n_a_r_d_g_u_i_l_l_a_u_m_e" 
<jbgd@...> wrote:
>
> Hi ! Thanks for numerous answers.
> 
> 1st of all, there is no backup battery in the unit, it is one of 
the 1st revision models with 
> just the blank space on the board. I was just preparing to do the 
backup battery mod, but 
> couldn't even make it to the store to buy the battery holder... it 
just suddenly 'crashed'.
> 
> For what's the display, it shows a P in the PARAMETER NO. window. 
> In the PROGRAMM NO. window something like this ( two lines dot two 
lines) :
> 
> -    -
>       -
> |  .  
> 
> 
> 
> The power supply adjustment issue that narfman96 mentioned before 
sounds credible. I 
> should probably try to find some tech. Or does any of you have a 
clue what elements I 
> could replace myself in the power supply unit ? Soldering is an 
easy thing... :)
> 
> Thanks !
> b_e_r_n_a_r_d_g_u_i_l_l_a_u_m_e
>