Anyone buy this CD to help repair the CC amplifier? I just purchased a 82 300D that has a bad one and this video is just 13 bucks compared to $200 for a used one. Thanks..
Drew

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Drew

Yep, I've heard cc amplifier repair is actually less than $20 in parts and knowing what needs soldering.

How technical is the video? Does it tell you exactly how to do this simple repair, also listing electronic parts needed to avoid the sucker-market of buying rebuilt $200 cc amplifier?

I don't know how specific it is, I was just doing a search on e-bay and came up with this video. States he goes step by step on finding out what's wrong.
D

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Drew

Have CD of repair.

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83 SD

84 CD

Does the CD say which component to replace, or does it simply say to resolder everything. My guess is some of the little amplifier components (LM2902N) probably need to be popped out and replaced.

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B
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1983 300SD

Somewhere there is a list of all the components to shotgun replace in aging cruise controls. Included is a list of new part numbers from electronic parts vendors as certain parts are now obsolite. Condensors were a poor original design as well as poor transistors. I believe the parts were quoted as less than twenty dollars to round up. . Once this is done I understand they are quite reliable.

got any idea WHERE?
John

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

yeah..problem if I remember correctly though is finding the LM2902N chips. searched in google about a year back in most sites are in chinese and the rest if they're there at all require purchasing in lots of 1000.

if there's a new chip number out there I'm listening...i've got a fried one too.

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1982 300TD 210K miles ("The Replacement" aka "The Anvil") - SOLD
1979 300SD 245K miles (never ending project)
2007 Pinarello F3:13
1995 Ducati 916 (SOLD, sniff)
1999 Ducati 900SSie (SOLD)

Hey guys, I have not done the repair but Im in the electronics industry and have sources...

Here's the part:

http://www.digikey.com/scripts/DkSearch/dksus.dll?Detail?Ref=248133&Row=117560&Site=US

This is the Texas Instruments version. Other companies will also make equivalents.

If someone takes a picture of the part inside the amp I can verify that it is the right package type. It looks like this is the only package it comes in so you should be okay.

Digikey is a pleasure to deal with and dont have a min order, order some extras...

EDIT: You MAY find these at an extemely enlightened radio shack or electronics store. Thats a bread and butter part...

dd

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-------------------------------
'85 300D, 'Lance',250k, ... winter beater (100k on franken-Frybrid 3 Valve Kit)
'82 300D, 'Tex', 228k body / 170k engine ... summer car
'83 300TD Cali Wagon 210k, wife's car

wow...could this be the holy grail to cruise amp repair only rivaling that of the tach amp repair yet to be accomplished?

who's going to take one for the team?

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1982 300TD 210K miles ("The Replacement" aka "The Anvil") - SOLD
1979 300SD 245K miles (never ending project)
2007 Pinarello F3:13
1995 Ducati 916 (SOLD, sniff)
1999 Ducati 900SSie (SOLD)

Try Boostnbenz's link: http://www.mindspring.com/~houlihan/merc/cruise.htm

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Doug

1987 300TD x 3
2005 E320CDI

i will pay for the part costs and the labor if somone wishes to do this for me.

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Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac?

As long as they would add one additional commandment for you to keep thy religion to thyself.
George Carlin (Wonder where he is now..)

1981 240d (engine donor 1983 240d) recently rebuilt engine hurray! - No more.. fought a tree and the tree won.

pearl black 1983 240d 4speed (Converted!@$$%) atleast the tranny was rebuilt.

i sent mine to a guy on this sit his name is deptryk came back all fixed send him a pm

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commercial fisherman diesel in my blood in my boats trucks and Dear old Dad has had me drivin them since i got my first license in 1968
1986 300 SDL 427654
1999 Chevy Crew Cab Dually 225423
1986 300 SDL 287000 Dad's
1987 190 Turbo 158000 Mom's (my inheritance)

I will go looking it's been awhile. The gentleman specified the parts replacements with easily available substitutes. I believe he quoted the condensors were a particularly poor type originally. The transistors were also under rated or of poor quality.
I also suspect that the ones that come back to life after resolderinmg may have dropped out of service while fairly new. I was never sure it was bad solder joints or the heat was travelling up a components leg and reactivating it.
Although if these units were manufactured by the phillips electronic industry in europe. They never could seem to production solder reliably when others had it down pat. It got to the point I refused to work on their stuff.
Track back to this thread in a few days to see if I have found the information. I too have a few I should do.

The fella that I use for all of my Electronics repairs likes to have a schematic....does anyone have a schematic if the innards of the "Cruise Control Amp"??
I will be anxiously awaiting the parts listing as well.....will be removing and having my Amp re-soldered....very soon.....before the end of June.....

SB

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Diesels:
'85 300D, "Max, Blue Benz", 155K, 27.0 MPG
'84 190D 2.2, "Eva, Brown Benz", 142K, 40.2 MPG
'77 240D (parts car)
'67 Eicher ES 202 Tractor "Otto" (2cyl, Air Cooled, 30HP)
Gassers:
'94 Ford F-150, "Henry", 170K (300 Six) 17.5 MPG
'85 190E 2.3, 148K....Parts Car
'58 Dodge W300M Powerwagon (Flat Fenders) Less than 10 MPG