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#1
11-17-2014, 11:22 AM
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Thanks for the help!
Now. What and where is the 9-160 board? Is this something I can just go out and buy a new one?
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#2
11-17-2014, 11:33 AM
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There used to be online sources for rebuilt 9-160s (and most other Zenith boards) but, a component-level repair can be done on them. As mentioned before, definitely reflow all connections on it first, paying close attention to the joints underneath the high-heat components and near the edge connectors.
All the system 3s i've repaired had intermittents, same as the 9-181 board sets, with the neckboards that would cause full-on red or retrace lines and they were simple fixes which didn't require a new board.
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#3
11-17-2014, 03:23 PM
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Quote:
DONT buy a new one yet, you need the complete ## first anyhows ( 9-160-??). Gather up the following first: 1/4" nutdriver, an apx 1 foot long insulated plastic anything, pencil iron & solder, a large mirror. Pull back, turn on, place mirror so you can see the pix while you are behind the set. Tap around the board with the plastic anything watching for the set to crap out. You can tap around & isolate where the bad connection is this way. If you get it to act up get back to us & will tell you how to pull the board out, there are tricks to it. 73 Zeno 
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#4
11-18-2014, 10:53 AM
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"tricks to it" Oh, boy. I can pretty much count on frying myself with this project!
Thanks for the help! I'll try to find some time to do this and go poking around with something plastic to see if I can locate the trouble spot. Wish me luck!
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#5
11-19-2014, 02:13 PM
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Quote:
you may miss. As far as HV goes it should bleed off by itself but a clip lead & thin screwdriver will take care of that. Let us know how it goes...... 73 Zeno
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