| Bob Engelhardt <BobEngelhardt@comcast.net>: Feb 07 10:29PM -0500 > Not wood. Which does not rust in any case. > Peter Wieck > Melrose Park, PA You put the silicone on the steel table (the only unpainted surface on a woodworking machine), then push wood across the table and you have silicone on the wood. |
| tabbypurr@gmail.com: Feb 08 03:45AM -0800 On Thursday, 6 February 2020 23:20:56 UTC, OtterGuy wrote: > EASILY) for use in woodworking ? It is on a band saw. > Bee's Wax ? > Suggestions please. Best way depends entirely on your app, which you have not clarified. Teflon coated, gold plated, powder coated, oil, wax, paint, zinc, chrome, brass, burnt oil, any might be the best in your case. |
| dplatt@coop.radagast.org (Dave Platt): Feb 07 09:57AM -0800 In article <8e63af3e-dc4d-4611-b9eb-003c89faabf5@googlegroups.com>, >All voltages are seems there. >The rest of the boards tested the same also... >Any help is highly appreciated. Looking at the block diagram in the Pioneer VSX-819-HK service manual, my suspicion would be that something may have gone bad on sub-assembly K (the INPUT-819 board). In particular, IC801 (R2A15218FP) is a big monster which performs the analog input selection, analog/digital switching, and volume adjustment functions. It has a simple control input (DATA and CLOCK inputs from the central micro-controller)... could be something like an I2C or SPI interface I suppose. If this IC has developed an internal fault, then the analog signal paths would go wonky, and the microcontroller which runs everything would probably not know about it. If you have an o'scope, you could feed a test signal to the receiver's AUX inputs, select AUX, and then look at the signals going ito pins 75 and 76 of IC801 (AUX-In to the selector) and at the various outputs to this IC. If I'm reading the block diagram correctly, pins 54 and 55 should feed the selected input signal out to the A-to-D converter (there are on-chip level controls), while 21 and 22 drive the signal out to the "front right" and "front left" amplifier channels (there's a whole bunch of switching, volume control, and other stuff going on inside the chip in this path). If the signal isn't getting through IC801 properly, you'd either need to replace this big IC (if it's even available separately) or replace the whole K sub-assembly board. |
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