My Poor Sanyo M9998

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chhchca

Member (SA)
Earlier this year I picked up a Sanyo M9998 which was truly in junk like condition. To my surprise it was still working, only to a point though. Lots of dust and rust so I had to take it all apart and did a deep, thorough cleaning and sprayed new flat black paint to the speaker grills, and put it back piece by piece.

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(To be continued)

Putting it back was straight forward and it was great to see how the unit looks like when the job has been done. And it is an even greater feeling to hear it:

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Yet it works with some issues. Because the antennas were not complete on this unit and one antenna seat was damages somewhat, I cannot put them back until I find parts. Instead I applied self-adhesive aluminum foil inside rear panel, like the FM antennas seen in tube radios of an earlier time. I must say this works fine, though looking differently:


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I had a harder time and less luck with the Stop/Eject key on the tape deck. It was broken and was not functional at all. What making it even worse, the tape deck was in the Play position and the motor spins full time even when you were just using the radio. This was dealt with as emergency and was one other reason I had to take the unit apart, so as to gain access to the broken push button.

It was found completely broken at the elbow and I tried twice to glue it back with no luck at all. This is why you see Stop/Eject button in the pressed-down position at all times. However, the deck now plays beautifully and you can enjoy a musical cassette from start to end. And you have to, because you cannot stop the tape halfway and you need to wait until AUTO STOP kicks in.

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I know I will be in need to stop the tape before it runs to the end and I finally decided to drill a hole underneath the STOP/Eject key (Marked Green in photo), to allow a screw driver in to make stops, on an as needed basis.

In addition, to open the cassette door, I now have a piece of vinyl on the door, so I can manually release the latch behind. If you have better ideas for doing this job please don't hesitate to let me know.

Though I could not change the belts this time I do have plan to catch it up later, and I took a couple of photos in this regard while working on the deck:

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BoomboxLover48

Boomus Fidelis
I have two of those that needs new belts.
Please post several pictures.
I want to see the pictures of belt replacement. :yes: :yes:
 

baddboybill

Boomus Fidelis
You should try using jb weld on broken pieces. I've fixed many plastic parts with jb weld and works great
 

floyd

Boomus Fidelis
Can't you just swap the stop button with pause button just switch them around because you will probably use stop more than pause anyway.
 

MyOhMy

Member (SA)
I like all the details & pics you post about your resto, it's the encouragement I need to do more myself. I think the removable front panel is a very cool feature on this BB. :yes:
 

chhchca

Member (SA)
Thank you all for coming for being supportive in the ways you could! I agree with each of you that the job is worthwhile: the unit is cool to look at, with the VU meters, tuning lights and all the bells and whistles; the sound of M9998 is one of the the best mid sized units.

JVC Floyd: Yes Swapping the keys was I thought of first but I then found the size of this key is different from all others.

Badboybill: Thank you so much for the info! I only tried epoxy so far and I will certainly try the one you recommended.
 

baddboybill

Boomus Fidelis
If it's just button that's broke I would glue using gorilla glue a thin aluminum piece to bottom and after it dries use thin coat jb weld over it as added strength. A picture of broken piece would also help to see and get 2nd opinions. Drilling holes definitely lowers value of unit and looks bad. Take your time and have patience and a solution will happen. Trust me ;-)
 

BoomboxLover48

Boomus Fidelis
baddboybill said:
If it's just button that's broke I would glue using gorilla glue a thin aluminum piece to bottom and after it dries use thin coat jb weld over it as added strength. A picture of broken piece would also help to see and get 2nd opinions. Drilling holes definitely lowers value of unit and looks bad. Take your time and have patience and a solution will happen. Trust me ;-)
JB Weld with a metal reinforcement should work. I would drill tiny holes and slip steel pins coated with 2 component epoxy glue and then use plastic weld or JB Weld for better bonding strength. It all depends where the breakage is on the button and how much load act on that place.
 

floyd

Boomus Fidelis
I think a picture of the the key that you need would help immensely there may be other sanyos that are cheaper model sanyos that use the same key.
 

chhchca

Member (SA)
jimmyjimmy19702010 said:
Maybe a member here has a spare key in their pile of bits?!

Are you US based?

James.... :-)
Thanks Jimmy, I'd love to know too and I'm Canada based.
 

chhchca

Member (SA)
baddboybill said:
If it's just button that's broke I would glue using gorilla glue a thin aluminum piece to bottom and after it dries use thin coat jb weld over it as added strength. A picture of broken piece would also help to see and get 2nd opinions. Drilling holes definitely lowers value of unit and looks bad. Take your time and have patience and a solution will happen. Trust me ;-)

BoomboxLover48 said:
If it's just button that's broke I would glue using gorilla glue a thin aluminum piece to bottom and after it dries use thin coat jb weld over it as added strength. A picture of broken piece would also help to see and get 2nd opinions. Drilling holes definitely lowers value of unit and looks bad. Take your time and have patience and a solution will happen. Trust me ;-)
JB Weld with a metal reinforcement should work. I would drill tiny holes and slip steel pins coated with 2 component epoxy glue and then use plastic weld or JB Weld for better bonding strength. It all depends where the breakage is on the button and how much load act on that place.

JVC Floyd said:
I think a picture of the the key that you need would help immensely there may be other sanyos that are cheaper model sanyos that use the same key.
I fully agree that drilling the hole was the most difficult and painful decision I had to make. This push button was deeply hidden and very hard, if not impossible, to take out. That is why I have no photo at hand but will try next time when I revisit it. My knowledge of glues for plastic is also limited and I thought I tried hard enough at the time.

This key has chrome-like surface on both sides so sanding was extremely difficult. And the contact area is very small when being glued together. There was no room for tools to hold or secure the pieces either.
 

BoomboxLover48

Boomus Fidelis
chhchca said:
I fully agree that drilling the hole was the most difficult and painful decision I had to make. This push button was deeply hidden and very hard, if not impossible, to take out. That is why I have no photo at hand but will try next time when I revisit it. My knowledge of glues for plastic is also limited and I thought I tried hard enough at the time.

This key has chrome-like surface on both sides so sanding was extremely difficult. And the contact area is very small when being glued together. There was no room for tools to hold or secure the pieces either.
I fully agree! I tried to fix the broken record key 2 days ago with JB plastic weld and it was practically impossible. It seems very hard to replace one. One has to pull out the hinge pin to get into one of those. Not at all an easy task.
 
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