Hitachi TRK 8600E (the second restauration)

I get the next one from this famely and there are 70% the same problems as in the Perdisco TRK 8600 Silver.
I have open the case with an batterie cover (bevore them, i removed the screws)
Here is the link the see the story about the TRK 8600RM
https://boomboxery.com/forum/index.php/topic/23770-hitachiperdisco-8600-silver/?hl=perdisco
Lets start with the picture story:

This contacts make some problems with the voltage for the amp or tuner....


The solder joints... now, how to get there with a soldering iron ....?


And the ``funktionsboard´´ is outside


Soldering soldering soldering...........E smoking


After two hours, the switches are outside.... and...


...and i can open the biggest switch of all to clean


A lot of contacts and sliders... yes, they must get clean !!


The A... ähh, i mean the clean team.
Contact 60 to clean
WL or isoprop to neutralize the acid from C60 -> (this could distroy potis)
And C 61 to sealing the contacts (This protects against new moisture) (google translator^^).


And the taster also



Cleaning


And... again... cleaning


The best way to use your invoice


And, if you have some bills, they helps also....


Looks like new...


Taster and switch together


In the theory... it works


Solder it in



Ready !!!! And it works with the first test, no problems... woooooaaaaaaahhhhh... i was soooo happy !!!


And this taster here makes startproblems in the tapedecks, clean it also, i have used sandpaper.



The little hitachi famely

This is difficult job, but the final result is big...

Wow what a write up and a great instructional! Excellent work mate.

Very cool now that's the proper way to clean a switch.


Bad Boy Bill

Nice work

Many thanks to all.

Those switches, with all the little parts scare me to :grim:
I have taken them apart and you never know if they will go back together or if you will lose a part or if pieces will go flying.

GREAT WORK WOLF

Its not easy to remove parts with sooooo many solder joints. I tend to get so frustrated with stuff like this and thats when things start breaking

k2j said:

Its not easy to remove parts with sooooo many solder joints. I tend to get so frustrated with stuff like this and thats when things start breaking

Click to expand...

Solder Sucker is the way to go.

I have the easy and cheap version of these (5,99 € in the next electronik store) is that a normal soldering iron with a sucker ?

Wow, I'm impressed with your skills and the level of detail you've shown us, keep up the excellent work and you'll have BB in factory condition!

Lots of work but totally worth it, really cool job!

I have recently invested in a Weller soldering station and a big-ass Soldapullit solder sucker and that was life-changing! I meddle with vintage computers as well, and desoldering chips with 40 legs is now a 10-minute clean job instead of a 2-hour one with broken traces. If you want to do this more often, get the good stuff or perhaps borrow from a friend

Many thanks... yes it was a lot of work, ive learned a bit with an old reciver from thechnics (Source switch from a SA 303). This was my fist try with an 14 € soldering iron... it was horrible and a patience job...
For that Hitachi (my second try) was a much better ``ersa´´ Iron in use. It comes with a long time head for SMD. The head is as big as a biro.
Thats my soldersucker:
http://www.diyaudiocircuits.com/wp-content/uploads/2013/10/solder-sucker.jpg

Do you wish a video ?

Nice greets

Love the look of the Hitachis...great design