GL1500 radio memory solved


Information and questions on GL1500 Goldwings (1988-2000)
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rrago
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GL1500 radio memory solved

Post by rrago » Mon Feb 05, 2018 6:45 am



Been dealing with the loss of memory for a season and since it's winter figured i'd take a look. Now, I've been an electronics guy since I was a kid so this didn't scare me. But, if you can't get the proper documentation, this can be impossible to diagnose. i was lucky enough to be able to find the Panasonic docs for the RM-G30 so I went at it.

I found that there was a loss of the +5V regulator output that feeds the processor and backup line and traced it back to a faulty transistor (Q19 in the schematic)


Here's what it looks like in reality


here's where it sits on the main board, it's installed on the foil side.


Replaced it and Bob's your Uncle, I have my +5v rail back.

Part No. is Panasonic (or equal) 2SD601A



chads920
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Re: GL1500 radio memory solved

Post by chads920 » Tue Feb 06, 2018 8:54 am

nice work. now i've got an issue you might find interesting and be able to point me in the right direction.. my CB will not change channels. The channel select toggle seems to be resisting any attempt make it function. Its got to be a connection somewhere right??
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bellboy40
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Re: GL1500 radio memory solved

Post by bellboy40 » Tue Feb 06, 2018 10:01 am

The switches on the Goldwings are notorious for having erratic operation after a few years. Usually some spraying with contact cleaner will get you going again. Try spraying in beside the switch first while working it. If that dosen't do it you will need to take the housing loose to get at the switch better.

rrago
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Re: GL1500 radio memory solved

Post by rrago » Tue Feb 06, 2018 11:19 am

chads920 wrote:
Tue Feb 06, 2018 8:54 am
nice work. now i've got an issue you might find interesting and be able to point me in the right direction.. my CB will not change channels. The channel select toggle seems to be resisting any attempt make it function. Its got to be a connection somewhere right??
So chad im assuming you can change cb channels directly on the cb knob. If thats true then yes it is probably the toggle switch or a loose / dirty connection

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bellboy40
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Re: GL1500 radio memory solved

Post by bellboy40 » Tue Feb 06, 2018 11:36 am

The only way to change channels on the CB radio is by the up/down switch on the handlebars. There is no channel knob on the radio itself, only volume and squelch.

rrago
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Re: GL1500 radio memory solved

Post by rrago » Tue Feb 06, 2018 1:04 pm

bellboy40 wrote:
Tue Feb 06, 2018 11:36 am
The only way to change channels on the CB radio is by the up/down switch on the handlebars. There is no channel knob on the radio itself, only volume and squelch.
DOH!

What was i thinking? Excuse me.

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bellboy40
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Re: GL1500 radio memory solved

Post by bellboy40 » Tue Feb 06, 2018 1:15 pm

:lol: Sounds like you were having what I often have.... a senior moment.

rrago
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Re: GL1500 radio memory solved

Post by rrago » Tue Feb 06, 2018 2:21 pm

bellboy40 wrote:
Tue Feb 06, 2018 1:15 pm
:lol: Sounds like you were having what I often have.... a senior moment.
More like a blackout :oops:

chads920
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Re: GL1500 radio memory solved

Post by chads920 » Tue Feb 06, 2018 6:05 pm

I did spray from the outside and I think I will have to take things apart. I have been doing upgrades to my 93 1500A which included a used CB, cable and controls so something somewhere is not working properly.
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bellboy40
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Re: GL1500 radio memory solved

Post by bellboy40 » Tue Feb 06, 2018 8:54 pm

If you are sure all the plugs are in the right place, it is pretty likely the trouble is the channel switch. They are prone to not work after a few years due to dirt and other crud getting into the switches.

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Uncle Fester
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Re: GL1500 radio memory solved

Post by Uncle Fester » Wed Feb 07, 2018 12:49 am

Best contact cleaner I have found, and it is plastic and paint is Deoxit D5S, found at most good guitar centers and on Amazon.

https://www.amazon.com/Hosa-D5S-6-DeoxI ... dpSrc=srch
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Re: GL1500 radio memory solved

Post by WingAdmin » Wed Feb 07, 2018 1:15 pm

I agree, Deoxit is good stuff, but it is very expensive. I have a two-stage cleaner from Deoxit where one removes oxidation, the other coats and protects - they work better than anything I've ever used before, but they are TINY little cans (about 2 ounces) and the two together were over $20.

chads920
Posts: 58
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Location: Keremeos BC Canada, Arizona City AZ (winter)
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Re: GL1500 radio memory solved

Post by chads920 » Wed Feb 07, 2018 9:37 pm

Hmm. spendy little duggers.. I'll look for something other than Gunk .. I'll take it apart tomorrow (I think)


Sometimes your find yourself on a lonely open road, sometimes on a open road you find yourself.
BBM - PIN 24DF1560
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