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 Post subject: 1965 Mustang radio
PostPosted: Feb Sun 01, 2009 12:59 pm 
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Joined: Feb Sun 01, 2009 12:30 pm
Posts: 3
Location: Australia
Hi to all
As this is my first posting on this forum be "gentle" with me & thanks in advance ! :D
Any one out there have a schematic for a 1965 Mustang/Motorola
radio (5TMZ) I have fixed a few of these radios & found a few simple problems (caps & Transistors etc) but this one has me scratching my head,so before I go completey mad a circuit would greatly help
Have a look at "our " cars www.sydneymustangs.com.au this radio is for "Mary lou " & yes to all you purists it is not the original for this model , but they are so much better than the Philco (4TBZ )
Thanks
PS- As I am in Australia electronic transfer ( Scan or PDF )would be greatly appreciated


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 Post subject:
PostPosted: Feb Sun 01, 2009 1:22 pm 
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WOW those are some nice Mustangs!!!

I'll take Dallas, the 69 GT, that's my favorite year of Stang(gimme that 4 speed)...

What was the question again??? Something about a old radio??? :lol:

I suspect you'll want to find a Sams Photofact for the radio, but maybe some of the car radio guys will have a different thought...

Tom


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 Post subject:
PostPosted: Feb Sun 01, 2009 1:29 pm 
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Location: Elbridge NY, USA
If you can find one, my database says it's in the Sam's Service series: Set #AR, folder #28

Maybe someone here has one they can scan for you. Sorry, I don't have the Sam's Auto Radio folders.

Note: This site is going down tomorrow and might not be available for a couple days.

BTW: I had a 1968 GT. I loved that car.

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 Post subject:
PostPosted: Feb Sun 01, 2009 1:42 pm 
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Wow, nice cars.
One of these days I'm going to take a trip to Sydney. I would love to see it in one of those. I will definitely look you up. Looks like you don't have a '68 but I'd settle for Eleanor since she's a '67. :lol:

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 Post subject:
PostPosted: Feb Sun 01, 2009 2:41 pm 
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Location: Amarillo, TX 79102
I have the AR-28. I will copy and mail you the schematic, if you want.

Gene

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 Post subject: Re: 1965 Mustang radio
PostPosted: Feb Sun 01, 2009 9:00 pm 
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Joined: Jan Thu 01, 1970 1:00 am
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Location: Cinnaminson, N.J.
Oztech wrote:
, but they are so much better than the Philco (4TBZ )


4TBZ is a BENDIX

5TPZ is a PHILCO

E.J.


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 Post subject:
PostPosted: Feb Sun 01, 2009 9:30 pm 
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Location: Cinnaminson, N.J.
Oz,
Check your E-Mail
I sent you a copy of the Motorola Service Manual for the 5TMZ.
I think it might be a little better than the Sams Manual, but I think both of them should help you out.
E.J.


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 Post subject:
PostPosted: Feb Mon 02, 2009 12:49 pm 
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Joined: Feb Sun 01, 2009 12:30 pm
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Location: Australia
Thank you EJ
You are a lifesaver & my hero :-)
Thanks for the effort of helping me with this radio
It is greatly appreciated
By the way about 30 min after posting I realized B= Bendix & P= Philco , so as Homer would say " DOH ! "
"Daisy" is my own personal favourite, 289 & 4 speed , she is just the sweetest little ride
We can do things right in the "colonies " & appreciate American muscle & technological innovation :D
Although your new Pontiac GTO ? is an Oz built Holden Monaro
Best wishes
Richard


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 Post subject:
PostPosted: Feb Mon 02, 2009 12:56 pm 
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Joined: Feb Sun 01, 2009 12:30 pm
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Location: Australia
Also to 35Z5 & Steve
Thank you as well
If you guys are ever in Sydney look us up
we will show you how to drive " Left handers " on the right side of the road :?
You are always welcome
Richard


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 Post subject: Re: 1965 Mustang radio
PostPosted: Jan Wed 11, 2012 8:24 pm 
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Joined: Jan Wed 11, 2012 8:18 pm
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Hi everyone,

My father-in-law is repairing a 5TMZ for a friend who is restoring a 65' mustang...
would we be able to get a copy of that motorola service manual? We have been
looking and not finding one...

a BIG thank you in advance! :)


Rob


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 Post subject: Re: 1965 Mustang radio
PostPosted: Mar Tue 12, 2019 7:02 pm 
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Hi, I am new to Antique Radios and I own a 1966 Mustang just like Dels. Also purchased a second radio to learn about old radios and hopefully repair the radio. Multimeter, soldering iron, solder sucker, and a 12v battery are my tools. I have a full set of schematics. Initial test resulted in nothing. No dial light or sound. Replaced the electrolytic capacitors (same as Dels) and carefully checked and doublechecked the polarity for the caps and the speaker. Now I have a dial light and a pop then a low hum from the speaker.

My BIG problem is the audio output transformer gets super hot. Killed the power when it started to smoke. My question is, was the transformer initially bad or did I somehow cause it to heat up by changing the caps? Can someone recommend a web site if I have to replace the audio output transformer?

Many thanks to all for any assistance.
Peter


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 Post subject: Re: 1965 Mustang radio
PostPosted: Mar Wed 13, 2019 2:33 pm 
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What model? Most of these were either Bendix or Motorola, sometimes Philco.

If anything is overheating in output circuit, the output transistor is probably shorted. Usually there is a emitter fuse resistor that blows before anything actually smokes.

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 Post subject: Re: 1965 Mustang radio
PostPosted: Mar Wed 13, 2019 4:00 pm 
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Location: Yorktown, VA, USA
Sams AR-32 lists a Bendix 4TBZ for the '64/'65 Mustang
Sams AR-28 lists a Motorola 5TMZ and a 5TPZ Philco for the '65 Mustang


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 Post subject: Re: 1965 Mustang radio
PostPosted: Mar Wed 13, 2019 6:09 pm 
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It is a 6TPZ Ford radio for a 1996 Mustang. Has Philco parts. Do not see a manufacturer name on the radio. The audio output transistor is a PNP Philco. Guess it is a Philco radio ? Checked the schematics and the output emitter fuse resistor is rated at .68 ohms cold (nominal value, may vary). Quick visual inspection of the Emitter fuse appears ok, not burnt or distorted. Output Base is a 100 ohm cold thermistor. Looks ok. I will check the ohms with my multimeter when I return home.

Thanks to all for your speedy and very informative replies. :)

Peter


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 Post subject: Re: 1965 Mustang radio
PostPosted: Mar Wed 13, 2019 9:49 pm 
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Joined: Mar Tue 12, 2019 6:28 pm
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Hi, here the ohms as promised in my prior email:

Output emitter fuse resistor is rated at .68 ohms cold (nominal value, may vary). Measured at .4 ohms

Output Base is a 100 ohm cold thermistor. Measured at 74 ohms

Also just confirmed the Ford 6TPZ for a 1966 mustang is Philco. Reference is https://sites.google.com/site/identifyi ... s-1/ford-2


Audio output transistor is a $25.00 part. Should I go ahead and order a new audio output transistor or are there more tests I can perform ?


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 Post subject: Re: 1965 Mustang radio
PostPosted: Mar Thu 14, 2019 1:37 am 
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Yikes $25????

Does it use TO-3 or TO-66 size transistor? I have the larger 3 but believe I used last 66 on a '68 Torino radio I repaired around two years ago.

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 Post subject: Re: 1965 Mustang radio
PostPosted: Mar Thu 14, 2019 2:01 am 
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Location: Yorktown, VA, USA
Sorry, I was looking at the topic line when I responded with the 1965 Mustang radios.

Your radio, a 6TPZ is in fact a Philco and is in the Sams Photofact AR-36 volume.

Do you need the Photofact?


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 Post subject: Re: 1965 Mustang radio
PostPosted: Mar Thu 14, 2019 4:11 am 
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Hi Stokester, no worries and thanks for your offer for Sams Photofact AR-36 volume. I have a Photofact but you may have a better version. Very much like to have a copy of your Photofact! Thanks :)


Hi Tom, radio uses a TO-3 type package. Attached is a NTE 121 data sheet that details the physical and electrical attributes. I am definitely interested if you have TO-3 NTE121. Many thanks


Peter


Attachments:
AR-14 nte121 PNP Transistor.pdf [51.16 KiB]
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