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11 May 2020, 02:30
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#1 |
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Registered User
Join Date: Sep 2009
Location: San Antonio, TX USA
Age: 50
Posts: 1,184
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I need to verify something on A4000 schematic
R176 and R177 shows as 20 Ohm SMD resistor. Right below it it shows 1W, is this means that the resistors should be 1Watt?
I'm being told that biggest SMD resistor (size 2512) is only 0.5W. Does anyone know correct SMD sizes for A4000 I'm using amigawiki.org schematics. Thanks |
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11 May 2020, 12:18
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#2 |
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ex. demoscener "Bigmama"
Join Date: Jun 2012
Location: Fyn / Denmark
Posts: 1,624
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There's plenty of options for 20 ohm @ 1W in 2512 package - they're even available as 3.5W.
I can't tell you what wattage the original A4000 part is though - that would require the OEM BOM. |
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11 May 2020, 15:07
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#3 |
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Registered User
Join Date: Sep 2009
Location: San Antonio, TX USA
Age: 50
Posts: 1,184
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I used a BOM (shared cart?) for the new A4000 motherboard in Mouser and found correct resistor.
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12 May 2020, 14:08
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#4 | |
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Registered User
Join Date: Apr 2020
Location: UK
Posts: 144
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Quote:
http://www.kaiiv.de/servicemanuals/A4000_Costed_BOM.pdf |
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12 May 2020, 14:10
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#5 |
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Registered User
Join Date: Apr 2020
Location: UK
Posts: 144
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Is it CBM P/N 391093-07?
1W 5% 20 OHM 2512 according to that BOM above |
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