Turns out this was not the manual i was looking for. The concertmate 670 keyboard i have is a "Realistic" model made for Radio Shack and none of the diagrams on the owners manual i received matches up. HOWEVER, I must say the service Owners Manual provides was fast and efficient by being available online. The manual was in good readable condition and easily downloaded.
Thank you for your manual It has the basic things to and i use the Oszi for Longer Time.
THX
Text excerpt from page 3 (click to view)
Expanding Your Phone
For KX-TG5210 users
KX-TG5210 includes one handset and one base unit. You can expand the system by adding up to 3 accessory handsets, sold separately. A maximum of 4 handsets can be registered to the base unit. KX-TG5210 Up to 3 accessory handsets can be added.
The illustration is KX-TGA520.
� The included handset is pre-registered at the factory and assigned the extension number 1.
For KX-TG5212 users
KX-TG5212 includes two handsets, one charger unit and one base unit. You can expand the system by adding up to 2 accessory handsets, sold separately. A maximum of 4 handsets can be registered to the base unit. KX-TG5212 Up to 2 accessory handsets can be added. The illustration is KX-TGA520.
� The included handset is pre-registered at the factory and assigned the extension numbers 1 and 2.
For KX-TG5213 users
KX-TG5213 includes three handsets, two charger units and one base unit. You can expand the system by adding 1 accessory handset, sold separately. A maximum of 4 handsets can be registered to the base unit. KX-TG5213 1 accessory handset can be added.
The illustration is KX-TGA520.
� The included handset is pre-registered at the factory and assigned the extension numbers 1, 2 and 3. The model numbers of the accessory handsets are KX-TGA520 and KX-TGA523. A charger is included with each accessory handset. To order, contact your dealer or call 1-800-211-PANA(7262) to locate a dealer. After purchasing accessory handsets, you must register each to the base unit. (Please read the accessory handset�s Installation Manual.) For assistance, please call: 1-800-211-PANA(7262)