Unit select keys not working

Hello everyone,

I have issue with Komori Lithrone 40 working panel, more precisely unit select keys, after switching on the machine they start blinking and after all of them blinked it switches off. It doesn't show me any error code on my PQC and if anybody have any information or can help me please write.
It's been 3 months since it happened.

 

@CHOCK please sir if you could help me I will appreciate it so much.

 

Hi sir;

What support do you need??

Let me know, sincerely

 

Thanks for answering.

So when I turn on the press, all lights on working panel board switch on and then they switch off, press is working but I can't control the units and I can't load my file for printing form, only for example if I use button stop and stop the light on one of the units I am able to print on only one where I stopped it, if I try to press any other or to switch on more units or to press this buttons it's not allowing me, zero response. I tried with changing whole panel but it gives me still same outcome.

 

Dear Komori,

I do not familiar with the machine, general recommendations:

It looks as a fatal error which does not allow to start controlling, a control indicates it by flashing the buttons and turns itself off.

Continue to do something and the God will assist you:
At least you know that the flashing panel is ok.

It is seen another panel from left which may also participate in the controlling, power supplies, control unit itself, SENSORS,.. even cabling from the control to executive mechanisms or from sensors.

Do not concentrate on the buttons, the problem is located in another component.
Prehistory of the fault and visual inspection?

Off the subject please:
What type of the monitor is used in the machine, what is its interface if known?

Regards,
Oleg T.
Alonex ICEE Labs

 

well its PQC4, today when I switched on machine I could control the buttons and after I switched them on all one by one it switched off again so if u have any idea where to look I would appreciate that.

 

Dear Komori,

I do not know what is PQC4, sorry. All my current ideas were listed in my previous message, start to execute them until a more exact recommendation from someone.

Regards,
Oleg T.
Alonex ICEE Labs

 

Thanks anyway, God bless

I ll post more pics just to make it easier for others

 

Dear Komori,

Start to execute the recommendations, but not only filming.

Regards,
Oleg T.
Alonex ICEE Labs

 

Hi sir;
My apologize for the Delay, but I have to my wife in the Hospital with surgery Tumor Cancer, by 13 days until now, and moving very quickly and Spending a LOT of Money, with this Nightmare situation, only waiting for my God in Sobrenatural Miracle. Sorry.

Please test this:

Supply voltage (+5 V) drop
Check and adjust the VP5 (+5 V) voltage.
See "5.4 Adjusting the DC Power Supply Module Output
Voltage".
Power supply malfunction
Replace the VP5 power supply (PW5). See "5.3.1
Replacing the DC Power Supply Modules inside the PWB
Unit".
Incomplete insertion to back plane board
Correctly insert the CPU board into the back plane board.
CPU board malfunction
Replace the CPU board. See "5.1 Replacing Boards and
ROMs".
Back plane board malfunction
Replace the back plane board. After replacement, be sure
to correctly set the back plane board jumpers. See "8.13
VME Bus Back Plane Board".
3 Orange Abnormality
(SFAIL condition)
2) BALM lamp
No. Lamp condition Status Possible causes and actions
1 Off Normal
2 Lighted Abnormality Battery voltage drop
Replace the battery mounted to the CPU board.

 

Thanks for answering I ll try this tomorrow.
Wishing your wife a fast recovery and to win this battle. I will have her in my prayers. God bless

 

Thank you sir.

Blessing

 

Dear Chock, let the God give your family internal and monetary power, patience and luck in your battle for the health. Oleg T.

 

Thank you Sir

Faith+ Patience= Victory

Blessing

 

Mr chock , bon rétablissement pour ta femme que dieu la bénisse . Courage

 

Thank you my friend

JesusC bless you

 

So we get the machine going and again during the process of printing we lost the control over the units? And again same problem

 

Do this;
1) Perform a visual inspection : look for loose and broken wires, improperly seated connectors, loose or broken wires
misset switch, missing jumpers. and so on.
Chech for obviously damaged component(components burned or discolore due to overheating);
Dust + dirt + tear +wear

2) Reseating Boards and components:
Edge connectors are a common souorce of problems. Power down the system and remove the PC boards. Examine the edge connector
for contamination and clean with contacts cleaner contacts. Reseat any loose components such as scoketed ICs) . Reseat the
boards and power up.

3) Power supply checks:
Check the power supply for missing voltages and voltages out of spec. A digital multimieter DMM can be necessary, as
voltage specifications are quite tight: logic supplies for example: must be within + 5% percent of 5Vdc. All the
multiple supplies and all must be checked.

4) Board swapping:
Board swapping involves the substitutiono of a known godd board for a suspect one.
7) Components ; Rusting+Dry+Colder joint solders

8)Cables; Corroded+Broken

 

Thank you. We cleaned all the connectors, replaced few that were old and now it's working again

 

Great sir.

Good Job.