Re: wg6100 ? HV glow but still no deflection

     I put in a different HV unit and the monitor fired up. So its
definitely the HV unit. Unfortunately that HV unit just went bad after
about 10 minutes or so. I looked in the first unit and someone made a
mess of it. I guess I shouldnt have assumed it worked because of the
glowing neck. Q901,Q902, R903,904,905 are all fried. I guess im going to
get a couple kits and rebuild this on and the other one too.
Dan

Daniel Piraino wrote:

> I take that back. Spot killer went off when I shifted the harness.
> I checked the B+ and didnt get 180volts at pin 5 of P900. Im going to
> follow Gregg Woodcock flow chart and check the components in the HV cage.
> Dan
>
> Daniel Piraino wrote:
>
>> I just replaced the 2N3716 at Q102. Now I have +/-25 vdc coming
>> from pins 4 and 5 of P100.
>> The spot killer LED is on now. still no picture but have HV glow. Not
>> sure where I should look next. Should I check the rest of the power
>> transistors on the chassis?
>>
>>
>> Daniel Piraino wrote:
>>
>>> Im getting the proper voltage of +/- 26 vdc at pins 3 and 6 so i
>>> would have to say its not the LV2000. besides this is the second
>>> LV2000 I have tried. Its when i check pins 4 and 5 of P100,which is
>>> the output from the low voltage power transistors that i get a lower
>>> reading than normal. pin4 reads -5.68 and pin 5 reads -20. Its
>>> suppose to be .5 to1 volt lower than the output of the LV2000. I
>>> checked those power transistors before and even replaced the 2N3792
>>> at Q103. Im going to go back through them again. Maybe Q102 is bad.
>>> Anyone out there think it might be something else?
>>>
>>> Joe Bachmann wrote:
>>>
>>>>Have you tried adjusting the voltage on the LV2000? Perhaps the pots are just a bit of.
>>>>
>>>>Or, maybe your LV2000 is bad?!??!?
>>>>
>>>>JB
>>>>
>>>>Jon Raiford wrote:
>>>>
>>>>>Since the WG6100 doesn't have a single part rectifier, I would assume you are referring to the bridge rectifier in the power supply. I think you should take a look at the rectifying diodes on the deflection board along with the filter caps behind them on the (-) side. These are not replaced in the standard cap kit, but are in the extra parts kit.
>>>>>
>>>>>Jon
>>>>>
>>>>>At 09:43 PM 2/14/2002 -0800, you wrote:
>>>>>
>>>>>> I just got the proper voltages going to the lv2000 on the deflection board. Had to put in a new big blue cap and a bridge rectifier. I get -/+26vdc at pins 3 and 6 of P100 but when I check the voltage at pin 4 and 5 with everything plugged in I get -20 vdc at pin 5 and -5 vdc at pin 4. I should be getting voltages just under -/+26vdc shouldnt I? Thats what the LV2000 directions say. I replaced the power transistor that P100 comes from, so im kind of confused on whats wrong. All the transistors checked out before, unless something just went wrong with one of them. Anyone have a suggestion?
>>>>>>Dan
>>>>>>
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>>>>>>
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>>>
>>
>

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Received on Sat Feb 16 12:01:45 2002