Electronic equipment repair and service manual search discussion Forum Index -> Equipment Repairs

Post a reply
Username
Subject
Message body Emoticons View more Emoticons	Font colour: Default Dark Red Red Orange Brown Yellow Green Olive Cyan Blue Dark Blue Indigo Violet White Black  Font size: Tiny Small Normal Large Huge Close Tags [quote="vtech"]In looking at your first set of pictures, apparently those are in fact rotary encoders which are completely different than standard potentiometers. (the microcontroller Atmega48 (U1) to the right of the controls is a solid proof) While tarnish can still build up inside the controls and cause erattic operation, there is a possibilty that you may have a digital problem? Ofcourse as jts1957 suggested you may want to spray clean it first. Keep in mind that spray-cleaning might cause a somewhat stiffer operation if you happen to have a very smooth-operated potentiometer--so don't spray all of them. As it cleans the contacts, it will also clean out any dampening fluid used for smooth pot operation. On your second picture, while not an encoder, it looks to be similar in operation to a Joystick potentiometer. Meaning that the full 10k ohms is linear and accomplished within 90 degrees instead of a standard ~ 300 degrees pot.[/quote]
Options HTML is OFF BBCode is ON Smilies are ON	Disable BBCode in this post Disable Smilies in this post

All times are GMT

Latest Service Manuals : CTC195 RCA • profilo pt2 chassis cablaj 145 PROFILO • SRE-90R Maspro • dsc-h10-level-2 [ET] Sony • ve dual cs 608 708q service en de fr DUA • 22sc5450 2 • extensa 500 acer • MDS-JB920 Sony • 2sc3225 Toshiba • 1954-09 Agilent •