Zenith Z712B need an owners manual

https://www.manualowl.com/p/Zenith/DVB312/Manual/50390

Hello, see the attached link for the manual.

Owners Manual User Guide for Zenith ZP305 3 DEVICE UNIVERSAL REMOTE Zenith...

You may download a copy of the manual here.

Universal remote setup codes for Zenith TV are:
0121 0009 0050 0078 0091 0138 0059 0131 0038 0111 0134 0153 0064 0004 0135 0226 0227 0245 0247 0252 0266 0288 0310 0338 0358 0023 0058 0039 0001

Zenith has merged with LG. Go to the LG website, you can download a PDF of the owner's manuals for free.

You will need more than an owner's manual, you need a service manual. This is not something the maker expects a customer to adjust. It likely involves some screws near the heads--but don't screw it up or you might as well buy a new player. In fact a new VCR may be cheaper than a manual and smaller than your model, too. -Ken

tv.manualsonline.com/manuals/mfg/zenith/c27j28c.html
you can downlad a free manual here or u can register yourself and they ll send a manual copy to ur mail when they get it

http://www.usersmanualguide.com/

http://www.retrevo.com/support/Zenith-XBV443-DVD-Players-manual/id/374dj499/t/2/
heres the manual you needed.Thank You for asking us.Please do rate if this solves your problem.