Becker Pacific 740 car radio cassette from Mercedes
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Location: Kanahooka, NSW
Member since 18 November 2016
Member #: 2012
Postcount: 712
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Happy new year to all does anyone have a circuit diagram or manual for a Becker Pacific 740 car radio cassette.These were installed in Mercedes cars. I installed a modern radio in mine and would like to repair this as a project.
Regards Jimb
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Location: Wangaratta, VIC
Member since 21 February 2009
Member #: 438
Postcount: 5461
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It is not unusual for the factory workshop manual to have that info. I have seen that data for Holdens and I have it for the original one for my MKII Zephyr. I have a "professionally" restored original radio for it with a docket for $300. Rip off merchants, don't know who paid for it , but it will take me around 3hrs + to fix it properly.
Marc
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Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6797
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I may be able to source that. Will find out Monday.
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Location: Kanahooka, NSW
Member since 18 November 2016
Member #: 2012
Postcount: 712
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Thanks Marcc and GTC.
I have a circuit for a much earlier model not this one.This one appears to be much later a lot of surface mounted components.
Regards Jimb
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Location: Wangaratta, VIC
Member since 21 February 2009
Member #: 438
Postcount: 5461
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Love surface mount: PIB to service. What's it not doing other than "no code" go away.
Some of that stuff soldered / dipped with unleaded solder (harder) can have components break away, or crack the bond one end. "Tin Whiskers" can be another issue with & that type of solder and the board including IC's may need brushing down with a non static brush, to get rid of them.
Marc
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Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6797
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Jimb: a photo would be of assistance -- or let me know the year(s) and model(s) of Merc is was used in.
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Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6797
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Well, no reply from you but my source advises that he does not have any data on that Becker model.
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Location: Kanahooka, NSW
Member since 18 November 2016
Member #: 2012
Postcount: 712
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Sorry GTC. I was not trying to be rude. I do appreciate your help on many occasions.
Wife had two major operations and just got busy being chief cook and bottle washer.
She is doing reasonably OK now.
I lost interest in the project because it had been seriously picked at around the output IC's. I installed a modern unit in the Mercedes. It has a nice chrome front and does not look out of place in the 1974 Merc.
The Becker unit looked quite ugly and of course no blue tooth or usb.
Regards Jimb.
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Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6797
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No problem Jimb. Sorry to hear about your wife's medical issues.
My source of such info repairs radios for vintage/prestige cars and a lot of them tend to have Becker radios in them as OEM equipment and the car owners want to keep the interior original. I don't find those radios attractive either, but they usually go for a lot of money on eBay, especially the models which have knobs that match the car's other dashboard knobs. He also installs Bluetooth if the customer wants it.
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