Leoraider wrote:Hey I have ten units of 2054qm, yes they are the same of 1954 (released in USA) all my units have bright picture, high contrast and a Perfect White but all have a little streacking of brightest objects on grey backgrounds to the right. I have already recapped one and got a Perfect geometry and improved picture quality but not solved the smearing/streacking wich is barely visibile.
How bad is the streaking? Is it like just a half or quarter of a pixel (in common 256 or 320 wide modes)? I have the same problem on a 2043MD, I've been told it is a) normal and b) just due to the age and wear of the tube and not possible to fix without a new tube. I've also seen it on closeups of other peoples' PVMs.
Thankfully it at least hasn't got worse over the many years I've had the monitor.
Leoraider wrote:Hey I have ten units of 2054qm, yes they are the same of 1954 (released in USA) all my units have bright picture, high contrast and a Perfect White but all have a little streacking of brightest objects on grey backgrounds to the right. I have already recapped one and got a Perfect geometry and improved picture quality but not solved the smearing/streacking wich is barely visibile.
How bad is the streaking? Is it like just a half or quarter of a pixel (in common 256 or 320 wide modes)? I have the same problem on a 2043MD, I've been told it is a) normal and b) just due to the age and wear of the tube and not possible to fix without a new tube. I've also seen it on closeups of other peoples' PVMs.
Thankfully it at least hasn't got worse over the many years I've had the monitor.
I have teste all tubes with my tube rejuv and all are absolutely in very good condition...may be the issue in on the neck board, I have already noticed this issue on arcade monitors just when spark gaps fail.
TheRetromancer wrote:Would it be possible for someone to post a high-resolution of the underside of the PVM-20M2U A board, specifically near IC507? I've caused some damage to a point, and its obscuring where it needs to be connected.
You should check the schematic in the service manual. I might have a photo of the board from a 20M4U.
Any news on that photo, mate?
"Thanks for the nice reply. I do offer to do work without hot glue too if people prefer it that way." - Drakon
TheRetromancer wrote:Would it be possible for someone to post a high-resolution of the underside of the PVM-20M2U A board, specifically near IC507? I've caused some damage to a point, and its obscuring where it needs to be connected.
You should check the schematic in the service manual. I might have a photo of the board from a 20M4U.
Any news on that photo, mate?
Sorry, I only have a photo of the top of the board
I've recapped my Sony PVM-1454QM (Australian) = 1354Q
now
The image is excellent, like new, but the menu system no longer functions. I can toggle inputs etc via front buttons but when I press Menu, I loose colour for half a second and nothing else happens. I need access to the menu for geometry adjustments.
Any clues on where to look ? I am on day 4 of hobby time and tired haha.
Photos are available but unsure how they'd help, ?common fault?
captaineos wrote:I've recapped my Sony PVM-1454QM (Australian) = 1354Q
now
The image is excellent, like new, but the menu system no longer functions. I can toggle inputs etc via front buttons but when I press Menu, I loose colour for half a second and nothing else happens. I need access to the menu for geometry adjustments.
Any clues on where to look ? I am on day 4 of hobby time and tired haha.
Photos are available but unsure how they'd help, ?common fault?
If you haven't done so already: double check your connections, make sure everything on the inside is plugged in fully, then get a magnifying glass out and have a good look at the board you just worked on. Look for lifted traces, bad solder joints, and bridged solder joints. A multi-meter with continuity check can be helpful. You should be able to determine the section specifically related to the front panel by looking at the schematic.