Admiral 20B1 Combo restoration - Videokarma.org TV - Video

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Admiral 20B1 Combo restoration

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#11

10-28-2015, 06:17 PM

bandersen

RCA 741PCS

Join Date: Mar 2009

Location: Chicago, IL

Posts: 8,829

That's definitely enough HV to produce a raster. Try moving the ion trap magnet around. If it's the typically dual blue/black Admiral magnet, the black magnet goes towards the base of the CRT.

Also, check the voltages on G1, G2 and the cathode of the CRT. Could also be an issue with the focus coil. Check it's resistance.

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