Sony PVM-1351Q with screen voltage too high

[charlysan]

I recently got my hands on a Sony PVM-1351Q that presented a "washed-out" image with very high G2 (screen) voltage, even though the screen pot was set to minimum. The culprit was a bad 680K resistor in neck board.






Troubleshooting details can be found here:

https://github.com/charlysan/crt_stuff/ ... reen-Issue

[Xan]

Thanks for sharing that.

I wonder how common resistor failure is in these monitors.

[MKL]

Those resistors are called "solid" in Sony manuals. They are better known as "carbon composition" or "Allen Bradley". They are often out of specs on these old monitors. Better replace them with metal film resistors.

https://ibb.co/vxgdGRC0

[charlysan]

Yes. I replaced it with a 2W metal film resistor, the same size as the original 1/2W one.

Those resistors are called "solid" in Sony manuals. They are better known as "carbon composition" or "Allen Bradley". They are often out of specs on these old monitors. Better replace them with metal film resistors.

https://ibb.co/vxgdGRC0