Trader, you seem to be enjoying yourself.
Let's stop messing around and get this unit fixed.

You people obviously do not read my posts,
I am not "you people", fact is I do not know who you think "you people" is

from what I can see there is only the control panel that operates the clock & the oven, once that panel is replaced they both should work.
You said it, "should work", but it does not so the problem is probably elsewhere or a defective part.

Maybe your parts are faulty??
Always a possibility but it is uncommon to get a board which shows the same symptoms as the replaced board. Note I said "uncommon" not unheard of.
PS: They are not my parts

You seem to believe that your post have not been read so lets review:
POST 1
I think it's the control panel, but how can I be sure?? The knob for the oven turns with no resistance, all of the burners work fine. If it is the control panel is it difficult to insatll a new one?
The reply said "Sounds like" not IT IS, I guess you did not read this correctly. The second part of your question was answered.
POST 2
I ordered the parts and installed the parts, and I still can't get the oven or the clock to work..Any other suggestions woud be appreciated. Thanks.
Judging from your next post your appreciation was short lived.
POST 3
I ordered new parts an installed The parts, the control panel and face for the clock. The burners work fine but the oven & clock still do not work. I don't know how much more decsriptive I can be than that. What part dont you undrestand??
Seems unfair that you blame someone else just because you do not know how to be descriptive
POST 4
Gene, Do you even read my post before replying?? I bought the parts you suggested I put them in the stove, The OVEN AN CLOCK STILL DO NOT WORK!!!> These parts were supposed to be the solution ..

Do you imbide before you answer??
You were simply asked to give a more detailed description.
As an example saying:
My car does not run is not very descriptive.
Saying my engine does not start is a little better.
Saying my engine does not start and I have no lights better yet.
Saying my engine does not start, I have no lights and my battery has no voltage even better.
Now someone may be able to give you some possibilities re: battery is shot or a charging system problem.

You have to admit that the last part is a low blow especially when the fellow who is trying to help you is doing it out of the goodness of his heart.

Now I have read your posts and proved it, so lets back up.
What does the board do if anything?
Is it totally dead, no lights, no beeps, no nothing? You never did say!!
Do you have the wiring diagram for this unit? It would really help.
The reason I ask is getting wiring diagrams on the net from GE is very difficult. They like to keep their tech's busy so keep everything secret.
I do not have one so am just going by what is normal.
Do you have a multimeter?
Do you have any experience working with electrical. The stove has 240 volts which is lethal so having some experience could save your life!!
Have you checked the power going into the unit? The stove top elements and the oven elements run on 240 which is OK according to you re: stove top runs OK but the timer/control often runs on 120 volts so if you loose your Neutral it will not work (totally dead). You need 120 volts from Neutral to L1 and Neutral to L2. Check it with a meter.
Have you unplugged the unit and checked the wiring in it? Look for any signs of overheating on the wires from the terminal block on the back of the unit to the control board/timer. If you have a meter check them for continuity.

I am having the exact same problem. We already replaced the digital clock display board and oven and clock display still do not work. Burners and oven light work fine. GE model JSP39 . The display is black no beeps lights nothing black. So cannot access oven controls so therefore can't operate oven as well. Please help what else could it be???

What is the part number of the control board you installed?

Where did you get it from?