I have two monitors exhibiting this exact issue.
https://youtube.com/shorts/JROKv6WZUv8?feature=share
20M4 - initially showed an image but slowly faded away, I can hear sound, but zero image and zero menu. I had to turn up the g2 voltage slightly to see this otherwise it would just be black.
14m4 - same as above. Showed retrace lines ontop of monitor initially, adjusted v hold to get image back, it just got worse, eventually a bright green screen, then nothing. Then I replaced C584 with 1uf 160v cap, and it didn't help. Still having same issue.
Replaced:
SONY ICs
HOT
Caps in deflection area
Sony PVM 14m4 and 20m4, no picture, no menu
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mrpvmsouthafrica
- Posts: 6
- Joined: Sun Apr 25, 2021 4:41 am
Sony PVM 14m4 and 20m4, no picture, no menu
Birth > Life > Worldwide COVID Lockdown > Unexplainable love for PVMs & Retro Consoles
Re: Sony PVM 14m4 and 20m4, no picture, no menu
have you solve this problem!!l?
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mrpvmsouthafrica
- Posts: 6
- Joined: Sun Apr 25, 2021 4:41 am
Re: Sony PVM 14m4 and 20m4, no picture, no menu
Hi there. Unfortunately not. I'm awaiting some feedback from here. Seems quiet here.. Anyone?
Birth > Life > Worldwide COVID Lockdown > Unexplainable love for PVMs & Retro Consoles
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buttersoft
- Posts: 383
- Joined: Sun Jul 24, 2016 7:49 am
Re: Sony PVM 14m4 and 20m4, no picture, no menu
Gee, that looks nasty. Voltages coming off the power supply are all in spec?