BK Precision 3026 5MHz Function Generator - Page 1
Forum section: electronics / testgear

author: Terabyte2007
author_rank: Frequent Contributor
timestamp: November 07, 2013, 11:29:07 am
content: Does anyone have a service manual for this? It's a BK Precision 3026 5MHz Function Generator. I need to know what the transformer voltage secondary is suppose to be. It goes into a bridge, some filter caps and then to +/- 15V regulators. Unloaded, the transformer secondary is 13.6V which seems suspect to me but maybe not. Plugged into the board I get nothing, V is zeroed so either the transformer is bad or something on the board is taking it down. Bridge, Diodes and Caps seem good.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: January 27, 2015, 07:00:02 am
content: Funny, I have a BK 3026 as well, which is in need of service.Seems the manual does not exist, so... that's no help to either of us (if you're still looking)...FWIW, I measure 9VAC on J106 and 41VCT on J103. I don't think my transformer is toast, I measure 1.0 and 1.0 ohms for both halves of J103, and 0.8 ohms for J106.My problem: the output stage burned out. Also, since this thing had been sitting open on a shelf for some time... most of the knobs, nuts and a few screws have gone missing...Tim

author: Electro Fan
author_rank: Super Contributor
timestamp: January 27, 2015, 09:07:08 am
content: Here is a 3026 for sale with the manual. Maybe if the seller doesn't sell the 3026 he will sell you the manual.http://www.ebay.com/itm/BK-PRECISION-3026-5-Mhz-Function-Generator-VG-Cond-w-Manual-/141402632557?pt=LH_DefaultDomain_0&hash=item20ec40f16d

author: T3sl4co1l
author_rank: Super Contributor
timestamp: January 27, 2015, 12:00:26 pm
content: Instruction... I doubt they have the schematics in there. :/Tim

author: tautech
author_rank: Super Contributor
timestamp: January 27, 2015, 06:21:45 pm
content: There are a few 30** service manuals on the net, what other BK FG's are from the same family?Maybe one of these manuals will be close enough?

author: kwass
author_rank: Frequent Contributor
timestamp: January 27, 2015, 06:30:51 pm
content: I recently sold my very similar BK 3022 on ebay along with the "calibration" booklet and "servicing information" booklet the full schematic is given in one of those booklets. Unfortunately I didn't make a copy of it before I sold it, but if you PM me I can try to put you in contact with the buyer to see if he/she would be willing to make you a copy.It's also for sale here:http://www.bkmanuals.com/3000+.htm

author: Jaelin999
author_rank: Newbie
timestamp: April 19, 2016, 08:44:16 am
content: Hey guys I managed to find a service manual for this function generator. Not sure if this is of any use at this time but this forum posting is the top google result so hopefully it helps someone out.

author: tautech
author_rank: Super Contributor
timestamp: April 19, 2016, 09:11:17 am
content: Quote from: Jaelin999 on April 19, 2016, 08:44:16 amWelcome to the forum.Great effort thanks.Can I ask if it was in one of the manual repositories on the web?If not it's best uploaded to one so others can grab a copy when needed.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: April 19, 2016, 11:58:38 am
content: THANKS!I have never seen this before, and now perhaps I can finally repair that hunk of junk.If only I hadn't lost track of all the screws and potentiometer nuts...Tim