rci ranger 2950 not powering up

A forum for the discussion of matters of a technical nature. All such activities are undertaken at the readers discretion and own risk. If you don't know what you are doing, don't blame us if it all goes wrong!
Post Reply
Airwaves
Regular
Regular
Posts: 32
Joined: 21 Mar 2017, 19:06

rci ranger 2950 not powering up

Post by Airwaves »

hi guys my brother had this radio and it was working until he got hold of it,so i asked him did he cross the polarity wires and of course he said he did not,but im not sure i believe him as hes not the greates come this kind of stuff.

am wondering if the D105 diode needs changing as i had a look and it does not look good so could indeed be the problem especially if it was wired wrong at the psu end.
thing is i have no D105 diode here,i have D103 D108 etc,can i put in any other diode apart from the D105 ?
Airwaves
Regular
Regular
Posts: 32
Joined: 21 Mar 2017, 19:06

Re: rci ranger 2950 not powering up

Post by Airwaves »

any suggestions please as to if i could use a different diode to the D105 ?.
User avatar
Buick Mackane
Moderator
Moderator
Posts: 9531
Joined: 21 Aug 2012, 17:30
Location: A citizen of legoland

Re: rci ranger 2950 not powering up

Post by Buick Mackane »

Snip the diode then see if the radio powers up, Most silicon diodes should suit as a replacement, Just be sure to get the orientation right
I Am the great cornholio are you threatening me ?
User avatar
Whisky1
Super Member
Super Member
Posts: 149
Joined: 11 May 2019, 21:59
Location: Yorkshire

Re: rci ranger 2950 not powering up

Post by Whisky1 »

Yep snip it.
Airwaves
Regular
Regular
Posts: 32
Joined: 21 Mar 2017, 19:06

Re: rci ranger 2950 not powering up

Post by Airwaves »

i snipped it and still not powering up.....
any ideas as to where i go from here ?.
User avatar
ch25
Top Poster
Top Poster
Posts: 1658
Joined: 03 Dec 2016, 11:07
Call Sign: Lemmy
Location: Poland

Re: rci ranger 2950 not powering up

Post by ch25 »

Take DMM and trace voltage from power socket onwards. You'll find where it disappear.
WE ARE MOTÖRHEAD, AND WE PLAY ROCK N' ROLL
You can't have too many antennas...
Airwaves
Regular
Regular
Posts: 32
Joined: 21 Mar 2017, 19:06

Re: rci ranger 2950 not powering up

Post by Airwaves »

so trace from the power socket on up to the on/off switch ye?.
Edd200sx
Top Poster
Top Poster
Posts: 1331
Joined: 12 May 2013, 12:55
Call Sign: AMC45

Re: rci ranger 2950 not powering up

Post by Edd200sx »

Also disconnect the Pa as shorted mosfets may stop it starting up
The am regulator if short (likely) would do it also.

If in doubt send it to repair with someone
Post Reply