Have a Grundig T70-1020 ctv that powers up with a full white/pinkish screen with flyback lines showing but no picture discernable (sound is ok), then after 10 seconds psu shuts down back to standby. Something EHT perhaps? All comments welcome.
Richard UK
This is usually caused by a short in the CRT. It is possible, but rare, to have a failure in the driver circuits to the CRT. With proper troubleshooting, the actual fault can be determined.
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JANA _____
Richard UK
If there were an EHT problem the screen would be black.
Check voltages on the various crt electrodes - except for anode & focus of course.
NT
Thanks to all for your helpful comments.
Could be missing the supply to the video output stages this would cause maximum beam current followed by the set tripping out. John.
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