Service manuals, schematics, eproms for electrical technicians
JBL GTO2000 SM
CAR-AUDIO - SERVICE MANUAL
Type: (PDF)
Size
4.7 MB
Page
18
Category
CAR-AUDIO
SERVICE MANUAL
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Relevant CAR-AUDIO forum topics:
1988 Ford radio with JBL - E8LF-19B165-AB

Well thought I completed this job a few weeks back. They are notorious for
leaky caps, so the entire radio had to be recapped.

Pix of Radio here - [ http://www.amstereo.org/ford-st.jpg ]

Took almost a year because the customer was not ready to pay me full price,
so chopped away at it over time.

Gave it back to him, I was not able to do a bench test because I didnt have
the pinout. He installed it into the car and says its completely dead.

Found some diagrams online and posted them here:
http://www.mediafire.com/folder/kfg508n7eah2y/FORD

I tried the Windstar pinout, and the display lights up but looks like the
display is lighting up randomly. Not all the
lights behind the controls light up, just the dolby one.

So far the 3rd pin up is connected to the chassis and is ground. The other
diagram showing gnd on the 2nd pin is wrong, its not grounded.....
but the other diagram also shows it grounded, so do I need to manually
ground that pin?

Strange he says it was completely dead hooked to his car connections while I
have some kind of power lighting the display. During working on this,
2 ribbon flex cables that were badly corroded developed open pins due to
repeated flexing. I thought this was going to be why the display was showing
junk, but after I replaced them with some flat wiring cables from a junked
out TV, looks like theres still either a problem in the radio, or Im not
applying power correctly.
Theres a tape still in the mechanism, and its not ejecting and the power
button on the front of the radio does nothing when pressed.

Do I need to jumper any pins on the connector to gnd or B+ to get proper power into the radio?
There was lots of corrosion around the leaky caps, and I believe I cleaned it well...however some of it
went on the feed-thru lands. 


Steve Hearns
Technotronic Dimensions [USA]
WWW.TECHNOTRONIC-DIMENSIONS.COM
 
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