Thanks for this helpful video. My 857 is about a dozen or so years old. No stripes, but rarely subjected to very hot weather and never direct sun...hot or cold weather. Might explain why still ok. Is my only QRO rig.
@@benm1mlm846 Don't know if you've got round to putting a new display in yet, but I've successfully repaired similar problems on several radios where the conductive-rubber "zebra-strip" has shrunk causing loss of parts of the display. Carefully dismantle the white plastic bezel from the actual glass panel so you can separate the 2 parts. You should see the glass panel has conductive areas that contact the zebra-strip which in turn touch the gold-plated lands on the backing PCB. Find a piece of mylar, PET or similar thin clear plastic film maybe 0.2 or 0.3 mm thick and cut a rectangular piece to fit neatly inside the bezel where the display sits. Then carefully use a scalpel or modelling-type knife to cut a window in the film where the display shows through. Put this window of film into the bezel, put the glass panel and zebra-strip back and reassemble to the PCB. You should find the zebra-strip is now slightly compressed and restores contact with the PCB and glass making all the display segments visible again. No need for a new display and a lot cheaper 😁
I've not taken mine apart yet to attempt to fix, but is the problem down to dry/broken joints on the multiway ribbon or shrinkage of the conductive zebra-strip rubber under the white plastic bezel? I've successfully repaired several LCD displays on FT-290's where the zebra -strips have shrunk by cutting a piece of thin mylar type film to fit under the edge of the bezel to push the display back a few thou, just enough pressure to restore contact with the pads on the PCB - works a treat 😁
This is not the way to do it. you're just reflowing the lcd ribbon cable. under the white part of the lcd is where the problem is. there's a conductive rubber that's lost it's contact with pads.
clean the solder out and replace it with some new stuff. if the hair dryer works the air station would work a real treat. nice fix thanks for the post
Thanks for this helpful video. My 857 is about a dozen or so years old. No stripes, but rarely subjected to very hot weather and never direct sun...hot or cold weather. Might explain why still ok. Is my only QRO rig.
Not seeing enough praise for you so ill just say thank you very much! worked perfectly and saved me $235 dollars!
You're very welcome , I'm glad it worked out for you . Take care, Ben 😊
@@benm1mlm846 thanks mate. Unfortunately, i spoke too soon and they returned overnight. It seems that as the unit heats up they slowly disappear.
@@nodlek oh that's a shame .. mines suffering now and needs a need display too..
@@benm1mlm846
Don't know if you've got round to putting a new display in yet, but I've successfully repaired similar problems on several radios where the conductive-rubber "zebra-strip" has shrunk causing loss of parts of the display.
Carefully dismantle the white plastic bezel from the actual glass panel so you can separate the 2 parts. You should see the glass panel has conductive areas that contact the zebra-strip which in turn touch the gold-plated lands on the backing PCB.
Find a piece of mylar, PET or similar thin clear plastic film maybe 0.2 or 0.3 mm thick and cut a rectangular piece to fit neatly inside the bezel where the display sits. Then carefully use a scalpel or modelling-type knife to cut a window in the film where the display shows through.
Put this window of film into the bezel, put the glass panel and zebra-strip back and reassemble to the PCB.
You should find the zebra-strip is now slightly compressed and restores contact with the PCB and glass making all the display segments visible again. No need for a new display and a lot cheaper 😁
I have the same problem in my scanner yaesu vr 500.😢
ive been trying to find a replacement display but no luck. The ones on Ali express arent the right size. anyone got a link?
Thanks for the tip. I hope it never happens to my two FT-857D.
Cheers Bud that's good quick temp job. Thank you. Best 73s
Wrong end. Fixed mine using the original display. Top under the black tape.
I've not taken mine apart yet to attempt to fix, but is the problem down to dry/broken joints on the multiway ribbon or shrinkage of the conductive zebra-strip rubber under the white plastic bezel? I've successfully repaired several LCD displays on FT-290's where the zebra -strips have shrunk by cutting a piece of thin mylar type film to fit under the edge of the bezel to push the display back a few thou, just enough pressure to restore contact with the pads on the PCB - works a treat 😁
Yaesu é vergonhosa por estes motivos ai
This is not the way to do it. you're just reflowing the lcd ribbon cable. under the white part of the lcd is where the problem is. there's a conductive rubber that's lost it's contact with pads.
Hi Steve , I completely agree with you ,this is not the way to do it.. it needs a new display, I'm just buying a little extra time . take care Ben 🙂
Super Repair 👍