I can't figure out where TurboTax for Pennsylvania is getting a dollar amount on the PA-40

[tfr888]

On my PA-40 for 2020, TurboTax (for Windows) shows an amount for estimated installment payments on line 15 and also a 2020 Extension payment on line 16.  I see where the line 15 amount is coming from but I cannot figure out where TurboTax is getting the dollar amount for line 16 (which is read-only).  The amount on line 16 says "2000". When I click on the magnifying glass on that line 16 box, I'm  taken to Form REV-276 EX, "Application for Extension of Time to File" for 2020, and there the "Amount of Your Payment" box shows "410".  That box is also read-only. The numbers don't jibe, and I also have no idea how "410"  got into that box either. When I click on its magnifying glass on the extension-to-file form, I'm taken back to line 1a of form PA-40, gross compensation. Going in circles....    I would be very grateful for some help in figuring this out.

[ErnieS0]

The extension payment is coming from the extension section in Pennsylvania.

1. Go to You've Finished Your Pennsylvania Return
2. Update Miscellaneous
3. Skip Pennsylvania Estimated Taxes for 2021
4. Click Do Extension on On File an Extension for Pennsylvania?
5. You should see your PA-40 Box 16 number in Extension Payment Amount

[Codetrader]

Hello: I am a non-resident PA taxpayer. I have royalty income only. My PA-40 1a gross compensation is showing taxable income.  The only taxable income I have is royalty income. I have spent hours trying to figure out where the form is getting that information. I need to remove that data. Can you please help? Thank you bobharding_1 @ yahoo.com