On TV sets, this is a sign of a bad CRT.
On 2012-07-08 2:12 PM, yurighisio
wrote:
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Hello,
I have repaired the low voltage power supply, the problem was in a 6080 tube V737A. I have replaced this tube and voltage are ok. For future repair and check purpose, have anyone the current for each voltage ?
I have performed calibration, it seem to work well.
A strange problem appears on crt when the trace intensity increase, past the control middle point, trace thickens and glow down.
I have checked -1700V and +8300V they don't change with knob moving, control grid voltage (pin 3) change accordingly with intensity control from -1900 to -1700.
Juri
