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my National RX-7200 88-108 MHz FM and 120VAC modifications/repairs


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#31 toshik

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Posted 19 July 2015 - 08:52 PM

I can also fix the all-static cassette channel problem.

You don't have to take those PCBs out if you don't want to - can send the whole radio if you'd like. 



#32 toshik

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Posted 05 October 2015 - 09:43 AM

Minor recent tune-ups, the rear was never retrobrighted, still original 0% yellow.

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#33 Reli

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Posted 05 October 2015 - 10:12 AM

Nice, you just get that one?



#34 toshik

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Posted 05 October 2015 - 10:54 AM

No that's the same keeper from the first post just added the OEM sticker to the cassette door (minor tune-up). :w00t:



#35 MyOhMy

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Posted 05 October 2015 - 11:08 AM

That's one of the very best BB's I've ever seen - I WANT ONE!!! 



#36 toshik

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Posted 05 October 2015 - 11:09 AM

That's one of the very best BB's I've ever seen - I WANT ONE!!! 

 

There is a sale thread on this by me I have one more left FS.



#37 Hisrudeness

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Posted 05 October 2015 - 01:05 PM

I neeeed one of these on my shelf!

#38 toshik

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Posted 05 October 2015 - 01:18 PM

I neeeed one of these on my shelf!

 

Local pick-up from St. Augustine would be appreciated :thumbsup:



#39 riker1068

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Posted 05 October 2015 - 02:09 PM

You work on other radios as well? I got a tech guy recently. He changes $40 for open inspect and deoxit. But I would rather offer a member the money for their work instead. I have a good 10 units that could use some work, and a few more extensive jobs as well. Cassettes are not my thing, so I will not be needing any rebelt work. Simple clean ups and pots lubes.   



#40 toshik

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Posted 05 October 2015 - 02:22 PM

Yes I do when I have time.



#41 riker1068

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Posted 05 October 2015 - 02:33 PM

Do you have a set standard price for say a deoxit cleaning and look over? Pm me you address. If thats cool with you.

#42 googol

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Posted 29 November 2015 - 11:36 AM

hi toshik,

 

I can not thank you enough......and really I am nothing short of amazed....

 

You are a re true magician...the radio is like factory adjusted to the 88-108MHz FM standard...STEREO finally works...this RX7200 is stunning...everyone who owns one needs to re-adjust the tuner to really enjoy this masterpiece of radio-cassette engineering....boy I cannot believe how well it works - I should have done this years ago....I wish I knew this can be done..

 

One can only be silent and respect you for what you can and what you do.....PURE MAGIC 

 

Thank you also for the following repairs:

 

- RX 7000 - no sound from right channel when on tape play/record with crackling noises coming from the speakers when on tape play and full volume - nasty problem that was there for a long time and no one could think of a fix - thank you for getting involved - now it works  ;-)

 

- RX 7200 - dead channel when on tape play/record with no sound at all and many unsuccessful attempts to fix it....working again after your involvement!     

 

 

The RX 7200unit is now really breathtaking  :-) - I have had it for a while and I really wish I knew earlier that you can fix and modify these. 

 

Thank you!!!

 

Attached File  DSC_1382.JPG   55.28K   14 downloads

Attached File  DSC_1383.JPG   54.86K   18 downloads

Attached File  DSC_1384.JPG   56.67K   13 downloads

Attached File  DSC_1385.JPG   55.67K   11 downloads



#43 toshik

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Posted 25 January 2016 - 08:26 AM

More eye candy :-) Sadly I'd have to sell one of them.

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#44 goodman

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Posted 25 January 2016 - 11:07 AM

Wow, this National look so perfect, toshik!!! :drool: :drool: :drool:



#45 MyOhMy

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Posted 25 January 2016 - 11:55 AM

Beautiful, so beautiful. :yes:  :thumbsup:  :hooray:



#46 googol

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Posted 31 January 2016 - 09:19 AM

toshik you are a genius, I always wondered why bass on my RX7200 is so shallow and weak...what a difference after your fix - bass is now notably richer, fuller with much more depth. Finally I can feel the difference in loudspeaker size compared to my RX7000. 



#47 Reli

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Posted 31 January 2016 - 11:28 AM

Panasonic literature says the 7000 and 7200 have the same speaker sizes (16cm and 5cm), but the 7200 has more power.



#48 toshik

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Posted 31 January 2016 - 11:42 AM

Correct - power amps are different: RX-7000 uses BA532 while RX-7200 uses AN7146

 

.



#49 BoomboxLover48

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Posted 31 January 2016 - 12:23 PM

toshik

 is another electronics Guru here! Good to have you as a member here! This guy knows his stuff!  :rock:  :rock:

 

Some time this year I will send the components of my 7200 to tune it to get up to 108MHz. 

I'm so nervous fooling around with that GEM! Even though I have egnr and other two MS degrees... 

So I need more courage to take it apart and send it to you. 



#50 toshik

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Posted 22 March 2016 - 08:23 AM

I finally got RX-5350 and restored it.

So I can resolve electronic and mechanical issues on big three: RX-7000 RX7200 and RX-5350.



#51 toshik

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Posted 20 April 2016 - 06:11 PM

I've got RX-7200 EL display blinking (pulsating) figured out as well.



#52 whodini

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Posted 16 May 2016 - 04:07 PM

Thank you Toshik for fixing my tuner! I was getting tired of my classical station. Toshik is a trustworthy and professional guy.



#53 crazygamer

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Posted 17 May 2016 - 06:58 AM

I wish i had one of those, these look so pristine and neat, i´ve seen one in person, they are awesome !  :thumbsup:  And you really are a magician there.



#54 toshik

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Posted 20 April 2018 - 02:21 PM

As I said before another common issue was faulty/blinking RX-7200 ELD - got that figured out as well! 

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#55 metalhandbag

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Posted 21 April 2018 - 10:00 AM

Beautiful classy Boombox .

#56 toshik

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Posted 24 May 2018 - 07:04 PM

I agree! Especially when you can bring one back up to 100% :-)

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#57 toshik

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Posted 27 June 2018 - 06:49 PM

Tuner ELD once of a sudden going crazy and showing out of range frequency - fixed! :-)



#58 Fatdog

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Posted 27 June 2018 - 09:28 PM

Tuner ELD once of a sudden going crazy and showing out of range frequency - fixed! :-)


How did you fix it? Was it just a loose cable or wire?



#59 toshik

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Posted 28 June 2018 - 06:37 PM

Sadly there are no simple fixes in this model :-(



#60 Fatdog

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Posted 28 June 2018 - 08:30 PM

Sadly there are no simple fixes in this model :-(

Okay.  :-/