Service manual: https://drive.google.com/file/d/1wAzhS2 ... drive_link
Back story:
I used the monitor for about 1 year daily as a second PC display and sometimes for 15khz gaming through an OSSC. From one day to another the monitor stopped operating.
The failure code was:
Code: Select all
Amber → Off → Amber → Off
(0.25 sec) (0.25 sec) (0.25 sec) (1.25 sec)
My first step was, also I assume a classic beginner mistake. I done a complete electrolytic capacitor replacement of the A1 and D board. Of course that did nothing.
Then I started measuring resistors and diodes and found a defective resistor (R903) which seems to be part of the "HV Protector Circuit Check" according to the service manual.
Current problem:
After replacing smd resistor R903 the monitor is turning on again but now there is a strange smell, when I turn the monitor on for about 10 minutes the whole living room smells. The smell is not quiet like burnt and there is no black smoke.
When I turn on the monitor while the cable between the A1 board and the neck board is disconnected, the smell goes away. I also got an HV probe, I measured 27kV as recommended in the service manual.
That smell was definitely not there before the monitor stopped working. Is that smell related to the neck board or the deflection yoke? I don't know what to do next.