Region 1 DVDs will not play on my recently purchased panasonic blu ray. is there any input code to allow play

New Blu-ray player machine, even region free, may not play old region-locked DVDs.
You can use a program called Leawo Blu-ray Copy to make a lossless copy of your Blu-ray disc and remove the Blu-ray region code on it while doing so. You can check on this:
How to Remove Disc Region Codes

Hi,
Please follow the steps : To change the player region code
1. Be sure players drive is empty (nodISC)
2. Enter following key sequence using remote control:

Enter, 6, >=10, <<, 00F2, Audio, 8, * requested region code here (1-8) *, Subtitle, 1

3. Player will reset and requested region code will be set.
- For example to set region code to 3 press: "Enter, 6, >=10, <<, 00F2, Audio, 8, 3, Subtitle, 1"

To set the player to RCE proof region free
1. Be sure players drive is empty (nodISC)
2. Enter following key sequence using remote control:

Enter, 6, >=10, <<, 00F2, Audio, 8, 1, Subtitle, 4

3. Player will reset and set to "region-free" and "RCE-free" mode

To restore players factory region code
1. Be sure players drive is empty (nodISC)
2. Enter following key sequence using remote control:

Enter, 6, >=10, <<, 00F2, Audio, 8, 9, Subtitle, 1

3. Player will reset and set to factory region code
Regards, Jay__okp9