Sony PVM 14m4 and 20m4, no picture, no menu

The place for all discussion on gaming hardware
Post Reply
User avatar
mrpvmsouthafrica
Posts: 6
Joined: Sun Apr 25, 2021 4:41 am

Sony PVM 14m4 and 20m4, no picture, no menu

Post by mrpvmsouthafrica »

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
Birth > Life > Worldwide COVID Lockdown > Unexplainable love for PVMs & Retro Consoles
Cromer852
Posts: 3
Joined: Wed Jun 09, 2021 4:12 am

Re: Sony PVM 14m4 and 20m4, no picture, no menu

Post by Cromer852 »

have you solve this problem!!l?
User avatar
mrpvmsouthafrica
Posts: 6
Joined: Sun Apr 25, 2021 4:41 am

Re: Sony PVM 14m4 and 20m4, no picture, no menu

Post by mrpvmsouthafrica »

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
User avatar
buttersoft
Posts: 383
Joined: Sun Jul 24, 2016 7:49 am

Re: Sony PVM 14m4 and 20m4, no picture, no menu

Post by buttersoft »

Gee, that looks nasty. Voltages coming off the power supply are all in spec?
Post Reply