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20 June 2015, 17:54
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#1 |
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Registered User
Join Date: Jan 2015
Location: Italy
Posts: 13
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Strange mod in graphic chip Amiga1200 - and no image
Hi @ all,
a friend of mine gave me an Amiga 1200 (REV 1B) board since mine was gone (  )once connected everything I tried to turn it on but I dont saw anything. Sound was ok but no image. I tried : Audio-Video - connection through scart on TV and RF , both don't work. Scart and RF connection on TV are ok , checked with other devices. Tried different cables also. Then I took a look at the mainboard and I saw a strage mod on the "ADV101KP30" chip! Take a look at the picture. Did anyone see something like that before? MOD:  BOARD: 
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20 June 2015, 18:01
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#2 |
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Registered User
Join Date: Jan 2015
Location: Italy
Posts: 13
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Tried also with and without Blizzard! BTW...
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20 June 2015, 19:24
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#3 |
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Registered User
Join Date: Sep 2008
Location: Somewhere
Posts: 223
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The mod is a factory fix for rev 1B boards, it fixes a few missing ground signals. Do you have a multimeter for measuring voltages and traces?
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20 June 2015, 19:28
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#4 |
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Registered User
Join Date: Jul 2013
Location: Liverpool
Posts: 2,598
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20 June 2015, 21:26
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#5 |
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Registered User
Join Date: Sep 2008
Location: Somewhere
Posts: 223
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21 June 2015, 12:01
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#6 |
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Registered User
Join Date: Jan 2015
Location: Italy
Posts: 13
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Hi thank you for reply.
Admin can close thread, my friend gives me another (workig) board! :-D |
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