Konica Minolta 7145 error F-36-1

[nxoxe]

Hi good day:

I have a month with the konica 7145 it is refurbished.
I was working fine until today I turned on and give me this error f-36-1

I follow some intruction
mode 25

1 option
2 put it in 3-1 then put it on 0
3 and turned the machine off
4 turned on

and still give me the same error

thanks need some help cause I dont have the service manual.

[montana]

DESCRIPTION: Various codes (F09, F26, F36, F43) at process start. SOLUTION ID: 49,639
SOLUTION: CAUSE: F2 on the main CB is open.
SOLUTION: Check all 24V DC loads on the main CB for shorting to ground. Replace the main CB (p/n
25HE-7312).
Note: To reset the F09 code, perform the following:
1. Access the 25 mode (hold down the 2 and 5 keys at power ON), P49 to 0.
2. Power OFF/ON to return to normal copy mode.
3. When ready to copy is indicated, check for normal operation.
DESCRIPTION: F36 shortly after power up. SOLUTION ID: 25,457
SOLUTION: To clear the code, set 25 mode, P47 to 0.
CAUSE: Poor contact of CN15-3 on the main CB.
SOLUTION: Reseat CN15 on the main CB

[nxoxe]

I got the error F-36-1 when I turn the machine on

Sorry for my poor knowlege about this but I want to learn
what is CB, P49, P47, CN15-3
I already get into 25 mode
what is the next moveIMAG0039[1].jpg
what numer option?