Re: WG6100 testing

From: Ken Sumrall <k_lists_at_scrapheap.net>
Date: Sun Jul 24 2011 - 14:39:28 EDT

akswanson is a genius. :-)

I checked, and there was a bad socket for Q102, one of the pins was
not making contact with the socket. I pushed the pin over so it stayed
in contact with the socket, retested, and the spot killer LED came on.

I bought a bunch of new sockets yesterday, and my friend and I will replace
that one and test all the other TO-3 sockets on the two monitors we just
rebuilt.

I also borrowed an Wico Corp. X-Y Pattern Generator from my friend Al,
so we'll try to get some patterns up on the monitors this afternoon.

Thanks for the help guys!

___
Ken

On 07/23/11 06:41, akswanson@ntelos.net wrote:
> Yep..serves me right for answering early in the am.. Thats true.. so Im
> feeling its a power supply issue.
>
>
>> He's not going to hear deflection chatter with the game board unplugged.
>>
>>
>>
>> On Sat, Jul 23, 2011 at 8:16 AM,<akswanson@ntelos.net> wrote:
>>
>>> Yeah. In my limited experience, if the monitors not working, and the
>>> spot
>>> killers not on, its either the voltage rails missing, or it could be the
>>> HV.. Im sorry I assumed you didnt hear deflection chatter..Are you
>>> hearing
>>> deflection chatter?
>>>
>>>
>>>> I assume you mean Q102 and Q103 on connector J100, right?
>>>>
>>>> I'll make sure they have a good connection and test good. We did
>>> replace
>>>> them
>>>> during the rebuild, but I'll make sure we installed them correctly and
>>> the
>>>> still
>>>> work.
>>>>
>>>> ___
>>>> Ken
>>>>
>>>>
>>>> On 07/22/11 16:50, akswanson@ntelos.net wrote:
>>>>> Check your regulator bottlecap transistors.. You could have a bad
>>>>> connection..
>>>>>
>>>>>> My friend and I finished rebuilding our WG6100 monitors last night.
>>> I
>>>>>> still
>>>>>> have some power supply work to do on my Space Duel, but we figured
>>> his
>>>>>> Tempest
>>>>>> was ready for a smoke test.
>>>>>>
>>>>>> We put it all together, except for the game PCB. We stood to the
>>> side,
>>>>>> and
>>>>>> applied power. The two LEDs on the LV2000 came on, the front coin
>>> slot
>>>>>> lights
>>>>>> came on, and the CRT neck was glowing. No fuses blew. All good
>>> signs!
>>>>>>
>>>>>> However, we did not see the spot killer LED come on. I would think
>>> it
>>>>>> would
>>>>>> come on if the game board was disconnected.
>>>>>>
>>>>>> So, should I look for issues in the spot killer circuit, or is it
>>>>>> expected
>>>>>> that the LED not come on if the game PCB is disconnected?
>>>>>>
>>>>>> A friend has an Atari vector monitor generator/tester he is going to
>>>>>> loan
>>>>>> me
>>>>>> once he finds it. :-) I hope to use that for further testing.
>>>>>>
>>>>>> ___
>>>>>> Ken
>>>>>>
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>>>>>
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>
>
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Received on Sun Jul 24 14:39:42 2011

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