junked 975 updated...

[rokbox2112]

Well in last topic. I broke down and removed the mother board partially,Since I still could not fix the High speed circuit /mic board. After long removal of dirt&debris I found what looks like home made soldering trails and bad connection attempts. Seems from the pics you decide? I don't know where or how to begin retracing this kind of JOB.i NEVER SEEN SUCH DESTRUCTION LIKE THIS.Perhaps why I can't get no juice to the amp or Leds to fire up. this is just at or near the Power switch pins... You figure? I know what BBBills gonna say ! PICK A PART DUDE!

 

[floyd]

you can solder in jumper wires that bridge the broken areas bypassing the cracks altogether , just scrape it down to the copper and put a dab of solder on each end then heat up the dab while holding the wire on it then move on the the next spot .

 

[Ken]

It's kinda hard to judge from your first two pictures how many jumpers you need to fix the crack in the board. Do it just like Floyd said. I use wire wrap wire (32 gauge if I remember correctly) cause it's small and easy to work with. Those third and fourth pics show what's actually a pretty nice job from appearances. Probably didn't need to fill in the whole trace and quite tedious and time consuming but an even better fix, none the less. You couldn't really fill in the traces around the crack, 'cause they would just break again, and if you glue the crack, you're back to jumpers again 'cause you can't stretch the original traces over the crack. As you can make out from the first pic, they'll just break again.

Looks like fun, honestly, but that's just me.

 

[rokbox2112]

It's kinda hard to judge from your first two pictures how many jumpers you need to fix the crack in the board. Do it just like Floyd said. I use wire wrap wire (32 gauge if I remember correctly) cause it's small and easy to work with. Those third and fourth pics show what's actually a pretty nice job from appearances. Probably didn't need to fill in the whole trace and quite tedious and time consuming but an even better fix, none the less. You couldn't really fill in the traces around the crack, 'cause they would just break again, and if you glue the crack, you're back to jumpers again 'cause you can't stretch the original traces over the crack. As you can make out from the first pic, they'll just break again.

Looks like fun, honestly, but that's just me.

Yes i'm sorry friend This box was a very bad bid... I tried to get better shots with my Canon. And since the Dial has been crazyglued to stay in. I dont want to shatter it either. I will try this but maybe after I use some braided wick. I can clean carefully and see whats really going on. You guys sure got it together... thanks Mike...

 

[BoomboxLover48]

If you can find home phone cable wires they can be used as jumper wires.
Another choice is the computer data cable. I enjoyed those thin insulated wires in those cables.
Once you open the off white sleeve you will find blue, black, red, yellow and white insulated copper wire.
This is what I used as jumpers.
Do it one by one and check the continuity before and after to make sure you did it right.
I became an expert on jumper wire connection after doing a few cracked boards.

 

[rokbox2112]

If you can find home phone cable wires they can be used as jumper wires.
Another choice is the computer data cable. I enjoyed those thin insulated wires in those cables.
Once you open the off white sleeve you will find blue, black, red, yellow and white insulated copper wire.
This is what I used as jumpers.
Do it one by one and check the continuity before and after to make sure you did it right.
I became an expert on jumper wire connection after doing a few cracked boards.

Ok... 10:13 pm PAC time... Did a small drop of Zap a Gap glue at crack and let fill it self in. Small clamp over night and board was perfect and matched its traces. Used small copper wire from data cable as you Suggested. Very good. I got power and full radio Led back on. BAD? Amp didnt fire up. no Woofer pop like all standard Las models do. Hmmm... did H.Phones check nothing. What you think...