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 Forum: General Discussion   Topic: MCM is no more...

 Post subject: MCM is no more...
Posted: Tue Oct 17, 2017 3:58 am 

Replies: 1
Views: 15


A friend told me yesterday that MCM was bought out by NEWARK..
he said he just got the newest catalog the other day and a few days later he tried to place a order, and the phone was answered by a NEWARK employee..

MCM Electronics is Now Newark - More Product, More Service‎.. go figure....

 Forum: Computer Programming   Topic: old windows 2K question something weird issue

Posted: Mon Oct 16, 2017 9:16 am 

Replies: 3
Views: 31


i've tried all that.. it is something deeper... running me nuts... i think it is a bug, but everything i use says all clear.. some time i can press the buttons once and they work or have to pound it several times.. i even changed the actual KB...and used a usb KB.. both do the same thing. sticky key...

 Forum: Computer Programming   Topic: old windows 2K question something weird issue

Posted: Tue Oct 10, 2017 8:44 am 

Replies: 3
Views: 31


i have this older laptop (DELL Latitude with a attitude problem) that we use at work for older programs.. it got strange issues.. the keys z,x,c,m,<,> and enter key have major delays on them. i can hold down the key and it will be several seconds delay before it responds.. not is not the KB either. ...

 Forum: General Discussion   Topic: Removed as duplicate

 Post subject: Re: Removed as duplicate
Posted: Thu Oct 05, 2017 4:05 am 

Replies: 3
Views: 60


stuff usually stays here for ever... even errors..

 Forum: General Discussion   Topic: Need schematic and possible help with DELCO radio mod.

Posted: Thu Oct 05, 2017 3:57 am 

Replies: 17
Views: 1185


eh, i am happy with just the input jack, as i have nothing that is blue tooth.

 Forum: General Discussion   Topic: Need schematic and possible help with DELCO radio mod.

Posted: Mon Oct 02, 2017 5:10 am 

Replies: 17
Views: 1185


well Saturday night i was bored, i took radio apart, and just probed around for a while. i discovered that all the controls are digital controlled. (A/D) they all go into a 16 pin chip where they are digitally outputted. all controls are pots, anyway i finally found some decent sounding audio.. prob...

 Forum: General Discussion   Topic: Element ELEFW408 TV.......

Posted: Fri Sep 29, 2017 10:06 am 

Replies: 7
Views: 155


i guess all the CRT companies are out of business now..
and i think only Russia and TUNG-SOL still make tubes.

 Forum: General Discussion   Topic: strange strobe light issue...

Posted: Fri Sep 29, 2017 10:00 am 

Replies: 17
Views: 360


no curve tracer..
and the power supply is over 15 yrs old..

 Forum: General Discussion   Topic: Need schematic and possible help with DELCO radio mod.

Posted: Fri Sep 29, 2017 8:12 am 

Replies: 17
Views: 1185


it is not a amp. it is a SMT flat chip.. i didn't count the pins. if you want a pic, i'll post one when i get home this afternoon..

 Forum: General Discussion   Topic: Need schematic and possible help with DELCO radio mod.

Posted: Thu Sep 28, 2017 2:51 pm 

Replies: 17
Views: 1185


hi all, i am back on this project now.. it's been on the back burner a long time now.. anyway i been doing some more probing around the radio some today and i think i found the raw audio before the processors.. all the raw audio goes into 2 small transistors ( 1 for right and 1 for left i suspect ) ...

 Forum: General Discussion   Topic: strange strobe light issue...

Posted: Wed Sep 27, 2017 8:32 am 

Replies: 17
Views: 360


well good news everybody ( Futurama ) i got the chip in yesterday and installed it.. it works now. i let run for about 30 min,, works great.. i kinda doubted that the diodes were bad. also i had ordered 2 of them chips, they only sent 1, i called them and they double checked, and only 1 was went, so...

 Forum: General Discussion   Topic: strange strobe light issue...

Posted: Mon Sep 25, 2017 9:22 am 

Replies: 17
Views: 360


the diodes # D18 and D19 can they check good and actually be bad ? these are weird diodes, one is a avalanche diode, and the other is a Schottky diode. i am going to order some just in case,, i can find the D18 Easily ( 1N5061 ) but the Schottky diode D19 (IR60S1) is a booger to find...i only can fi...

 Forum: General Discussion   Topic: strange strobe light issue...

Posted: Fri Sep 22, 2017 10:28 am 

Replies: 17
Views: 360


ok,, possibly good news... i didn't quite give up yet,, i i searched and searched and called and called, i finally got a whole part number. 61-0566907-00 it is listed as a hybrid "Feed back HR " so it is some sort of feed back control device. i got in touch with a company that happened to ...

 Forum: General Discussion   Topic: strange strobe light issue...

Posted: Thu Sep 21, 2017 10:23 am 

Replies: 17
Views: 360


well i got the strobe checked out,, the diodes checked out ok, so the chip is bad.. and Whelen won't sell me a chip.. kinda sucks..
i used to be able to buy chips from them, but now they won't sell to me.. so i guess the unit is a parts unit..

 Forum: General Discussion   Topic: strange strobe light issue...

Posted: Tue Sep 19, 2017 6:15 am 

Replies: 17
Views: 360


see if this works here....
the De-ionazionation circuit consist of
D18 & D19 and R28 , the tech finally told me...but he said that the Hybrid chip 66907 can also possibly get destroyed.
usually it is one of the diodes that gets shorted.
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