I need an owners manual for a cx 3300 hp

https://www.google.com/?gws_rd=ssl#q=Connex+3300+HP+ZX+radio+service+manual

your keyboard membrane is needing cleaned with IPA you must have spilled coke or pepsi or somthing conductive on its membrane so i would just look to replace it you need to perhaps replace some capacitors in the controller board section {mpu for it} i think dry caps cause this esp low value ones around the mpu

4600 turbo? 3300hp? never heard of a 3300 turbo

3300 https://www.bellscb.com/products/tenmeter/connex/manuals/Connex_CX-3300HP_OM.pdf

4600 turbo http://www.manualslib.com/manual/966347/Connex-4600-Turbo.html

4300 hp and turbo Owners Manual

cbtricks.com

check your swr

http://www.cbtricks.com/radios/connex/cx4300hp/index.htm
Beware there have been a few design changes thru the years be this should not matter as far as the owners manual goes.

The proper setting depend on what you are doing with the radio at the time.

Here is a link for the owner manual http://www.cbtricks.com/radios/connex/cx_3300_cx_3300hp/graphics/connex_cx3300_cx3300hp_om.pdf

O the front you should have a dim switch its on of 4 up & down switches ? if not check on the back ? was it bought as a new cb or was it 2nd hand as the dimmer switch may of been used for something else

You can get the ownwers from a website called cb tricks