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#1 |
Registered User
![]() Join Date: Aug 2009
Location: Orange County, CA
Posts: 170
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1968 Factory Delco AM Radio Troubleshooting Guide?
I searched "Radio" and got 160 search results from the forums. Didn't find a troubleshooting guide. I ordered a new 8 ohm speaker from S&M Electro-Tech, and installed it.
No light on the radio, and zero sound. The sound went out a couple of years ago. Then the light. I have a good digital multimeter, and I'm good at troubleshooting. Is there a good troubleshooting guide available somewhere online for these radios? Thanks in advance. |
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#2 |
Registered User
Join Date: Jul 2013
Location: LI, NY 11801
Posts: 1,140
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Re: 1968 Factory Delco AM Radio Troubleshooting Guide?
I have three AM radios and would like some information on them also.
The one in my truck worked for a few minutes then stopped. It was drawing a lot of amperage as the wire was getting too hot. I removed power from it and have not touched it since.
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1970 C10 8' Fleetside, L6 250, 3 on the Tree. The most basic of pickup trucks! |
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#3 | |
Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
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Re: 1968 Factory Delco AM Radio Troubleshooting Guide?
Quote:
Pop the top and start fixing it! I fixed my 64 impala by finding a bad solder joint and replaced the bulb. My sons factory am/fm on his 86 re-soldered all of the speaker connection solder joints in the radio and the speaker started working. You could get them to come on/off by wiggling the connector at the back of the radio. Simple machines.
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"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
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#4 |
Senior Member
![]() Join Date: May 2010
Location: Wisconsin & Arizona
Posts: 4,844
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Re: 1968 Factory Delco AM Radio Troubleshooting Guide?
I have 2 AM radios. One is model #11TB1. The other is 91TB1. Based on the numbers on the covers of these manuals and the fact that one is from my 69, my bet is that the first digit is the last digit of the truck year. They both also have Product No. 7305841 on the labels.
Based on that, I did an Internet search and found this: https://www.samswebsite.com/en/photo...earch&s=Search And, on eBay: http://www.ebay.com/itm/Sams-Photofa...EAAOSw6GBZcztK http://www.ebay.com/itm/Sams-Photofa...CWu3D8ZURhbYhg http://www.ebay.com/itm/Sams-Photofa...sAAOxy63FS~RyK Last edited by FirstOwner69; 08-15-2017 at 12:37 PM. |
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#5 |
Registered User
![]() Join Date: Aug 2009
Location: Orange County, CA
Posts: 170
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Re: 1968 Factory Delco AM Radio Troubleshooting Guide?
Thanks guys! Are there any things that I can check with my multimeter and a flashlight before I yank the radio out of the dash?
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#6 |
Registered User
Join Date: Apr 2013
Location: South Westerlo, New York
Posts: 1,325
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Re: 1968 Factory Delco AM Radio Troubleshooting Guide?
yes, remove the plug from the back of the radio and make sure you have 12 volts to start...make sure the key is on....
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Thanks, Joe.. 1969 C/10, 348 C.I., 3X2 bbl. V8, 2004r , LWB. |
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#7 |
Registered User
![]() Join Date: Aug 2009
Location: Orange County, CA
Posts: 170
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Re: 1968 Factory Delco AM Radio Troubleshooting Guide?
Thanks Joe. Will I only find 12 volts at one terminal on that plug?
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#8 |
The Older Generation
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Location: Montezuma, Iowa
Posts: 25,477
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Re: 1968 Factory Delco AM Radio Troubleshooting Guide?
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Seems like I read somewhere that turning on the radio with no speaker attached could damage the radio. Don't know if that would include a non-working speaker too or not.... LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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#9 |
Registered User
![]() Join Date: Aug 2009
Location: Orange County, CA
Posts: 170
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Re: 1968 Factory Delco AM Radio Troubleshooting Guide?
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#10 | |
The Older Generation
![]() ![]() ![]() Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,477
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Re: 1968 Factory Delco AM Radio Troubleshooting Guide?
Here is a quote from a members post....
Quote:
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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#11 |
Registered User
![]() Join Date: Aug 2009
Location: Orange County, CA
Posts: 170
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Re: 1968 Factory Delco AM Radio Troubleshooting Guide?
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#12 | |
Registered User
![]() Join Date: Aug 2009
Location: Orange County, CA
Posts: 170
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Re: 1968 Factory Delco AM Radio Troubleshooting Guide?
Quote:
That first link that you sent (thank you) has 7 search results for that model number. Do you know if there's a difference? Obviously, I'm looking for a troubleshooting/diagnosis/repair manual/guide. Maybe these are just schematics, and the troubleshooting is up to Google and me? Thanks again for the links. I really appreciate it. Last edited by ShortCST; 08-18-2017 at 05:13 AM. Reason: Did more research |
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#13 |
Senior Member
![]() Join Date: May 2010
Location: Wisconsin & Arizona
Posts: 4,844
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Re: 1968 Factory Delco AM Radio Troubleshooting Guide?
I remembered that website from a previous thread and don't have any personal experience. You could email Sam's and ask them which applies to your radio.
Unless you really have an attachment to that radio, it would probably be a lot easier to replace it. It appears that the AM radios generally sell for under $75 based on the sales on the parts board. The junkyard near me sells them for $15-$20 when they have them. |
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