True for wired in mikes, however I am assuming this is a plug in test to an external jack. Kevin did not make it that clear in his post. George Afana Electronics Moreno Valley, CA ----- Original Message ----- From: <gulftech@xxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Wednesday, February 18, 2004 5:44 AM Subject: [TechAssist] Re: Sony CCD-TR4 mic not working. > Maybe not-- > > I think those mikes are electret (sp?) mikes, with a small DC voltage > applied to the element. Maybe would work if you insert a cap (1ufd, 16v) > between the speaker and the input. Those mike elements are widely > available; maybe even at Radio Shack for a test. > > > Ken Smith > Gulf Technical Services > 3034 Gulf Breeze Parkway > Gulf Breeze, FL 32563 > 850-934-8324 (Voice) 850-932-0819 (Fax) > > > On Wed, 18 Feb 2004 02:44:18 -0800 "George" <grndmstrg@xxxxxxxxxxxx> > writes: > > Hi, Kevin the headphones should work if the impedance is high enough > > thou > > most are way too low. If you hook it to speaker side of an output > > transformer with the higher Z primary side across the input you > > should be > > able to get some output. > > > > George > > Afana Electronics > > Moreno Valley, CA > > > > ----- Original Message ----- > > From: "Kevin" <kevintv@xxxxxxx> > > To: <techassist@xxxxxxxxxxxxx> > > Sent: Tuesday, February 17, 2004 11:36 PM > > Subject: [TechAssist] Re: Sony CCD-TR4 mic not working. > > > > > > > Can I use a set of headphones as an external mike? I tried that > > and it > > > did not work. I then injected a signal where the internal mike > > plugs > > > into the board and I got audio to the TV. This would tell me that > > the > > > mike is at fault. > > > > > > Kevin Wilks > > > Kevin's TV & Video Repair > > > Penticton BC Canada > > > kevintv@xxxxxxx > > > > > > > > > -----Original Message----- > > > From: techassist-bounce@xxxxxxxxxxxxx > > > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of > > greentron@xxxxxxx > > > Sent: Tuesday, February 17, 2004 6:22 PM > > > To: techassist@xxxxxxxxxxxxx > > > Subject: [TechAssist] Re: Sony CCD-TR4 mic not working. > > > > > > If it will work with an external mike it is just a defective > > internal > > > mike. If you strip it down far enough you may find a broken wire. > > I have > > > subbed the basic mike element from boneyard units of other models > > with > > > good success. > > > J Silverman > > > > Playback of audio and picture is perfect. When in camera mode > > the > > > video > > > > is there but no audio. I got the audio to come on briefly by > > tapping > > > > the microphone. > > > > > > > > I replaced C413, a SM 47uF @ 6 volts cap, cleaned up the > > capacitor > > > > leakage, and cleaned the switch for external microphone. Still > > no > > > > audio. By the way the board # is 1-635-756-11. What else can I > > > check? > > > > Thanks. > > > > > > > > Kevin Wilks > > > > Kevin's TV & Video Repair > > > > Penticton BC Canada > > > > kevintv@xxxxxxx > > > > > > > > > > > > > > > > > > > > > > > > > > ------------------------------------------------------------------------ > > > ----- > > > > Lost Password: > > > > http://www.tech-assist.org and select "Login Problems?". > > > > Email Archives: > > > > //www.freelists.org/archives/techassist/ > > > > > > > > > ------------------------------------------------------------------------ > > > ----- > > > Lost Password: > > > http://www.tech-assist.org and select "Login Problems?". > > > Email Archives: > > > //www.freelists.org/archives/techassist/ > > > > > > > > > > > > ------------------------------------------------------------------------- > - > > --- > > > Lost Password: > > > http://www.tech-assist.org and select "Login Problems?". > > > Email Archives: > > > //www.freelists.org/archives/techassist/ > > > > > > > ------------------------------------------------------------------------- > ---- > > Lost Password: > > http://www.tech-assist.org and select "Login Problems?". > > Email Archives: > > //www.freelists.org/archives/techassist/ > > > > > ________________________________________________________________ > The best thing to hit the Internet in years - Juno SpeedBand! > Surf the Web up to FIVE TIMES FASTER! > Only $14.95/ month - visit www.juno.com to sign up today! > > -------------------------------------------------------------------------- --- > Lost Password: > http://www.tech-assist.org and select "Login Problems?". > Email Archives: > //www.freelists.org/archives/techassist/ > ----------------------------------------------------------------------------- Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/