Troubleshooting an HV Splitter / Focus Combo block (with more details)
I recently replaced the failed and NLA'd Sanyo 220493-3 HV Splitter /
Focus Combo block in my LXI RPTV with the updated 4835 310 57402 replacement Kit. (See the "Updated Hardware Kit and the block immediately above it at: http://www.technotronic-dimensions.com/Products3.html ). I made sure to follow the wiring and connection directions but the TV is definitely not happy with the change. On power-up there is a buzzing that sounds similar to arcing. The tubes do warm up after a few seconds and a blue/green is displayed on the screen, however shortly after warming up the tubes turn off... Any pointers as to what I should check or test to figure out what the problem is? Thanks, ~Aaron |
Troubleshooting an HV Splitter / Focus Combo block (with more details)
David Naylor wrote: wrote: I recently replaced the failed and NLA'd Sanyo 220493-3 HV Splitter / Focus Combo block in my LXI RPTV with the updated 4835 310 57402 replacement Kit. (See the "Updated Hardware Kit and the block immediately above it at: http://www.technotronic-dimensions.com/Products3.html ). I made sure to follow the wiring and connection directions but the TV is definitely not happy with the change. On power-up there is a buzzing that sounds similar to arcing. The tubes do warm up after a few seconds and a blue/green is displayed on the screen, however shortly after warming up the tubes turn off... Any pointers as to what I should check or test to figure out what the problem is? Thanks, ~Aaron turn your screens down and try turning on the set again after a few seconds try turning up the screens slowly see what happens most likely the screen controls are up to high Would that be turning the screen knobs clockwise or counter-clockwise? If counter-clockwise, I've already tried it with the same result... any other ideas? Thanks! ~Aaron |
Troubleshooting an HV Splitter / Focus Combo block (with more details)
Could it be that the replacement HV Kit would prefer lower HV input?
Is there a pot/adjustment to "crank down" the HV input? I've looked around but don't see anything obvious (This is an LXI RPTV (53") but I can't find any obvious model identification). Thanks again, ~Aaron |
Troubleshooting an HV Splitter / Focus Combo block (with more details)
Sorry for all the self-replies, I finally found the model number.
It's an LXI PTV415-AH01 Model Number: 626.54568291 Again, the issue is that after replacing the HV Splitter /Focus combo block with a new replacement kit, all three tubes warm up and light, but flicker and make a buzzing/crackling sound. After about 30 seconds the tubes all turn off at the same time although the TV remains on (power LED remains lit). If I power off then power on the TV again the tubes will flicker for 15-30 seconds and then turn off again. Any suggestions would be greatly appreciated - I'm not sure where to go from here... I double checked all the connections again tonight and they all appear correct... Thanks again! ~Aaron wrote: Could it be that the replacement HV Kit would prefer lower HV input? Is there a pot/adjustment to "crank down" the HV input? I've looked around but don't see anything obvious (This is an LXI RPTV (53") but I can't find any obvious model identification). Thanks again, ~Aaron |
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