IBM P77
August 30, 2024, 11:37 pm
Summary
Among the highest rated monitors in its size class, the P77 was manufactured by Sony and features a 17" flat Trinitron tube. It is based on the CPD-G220. Differences from the original Sony model include an IBM-style case design, redesigned control panel, and a single VGA input. It is capable of very high scan rates for a 17" monitor (up to 94 kHz), and will display 1600x1200 at 75 Hz.
Literature
Notes
This tube has a fragile anti-glare coating which will be damaged by all common cleaning products including Ammonia-Free products. You should only clean it with distilled water or distilled water mixed with a few drops of dish soap. Use only a soft clean microfiber towel to wipe the screen. I reccomend buying a spray bottle to mist the screen with the water or dish soap solution.
If the screen has missing/discolored parts of the finish, or spots that look like scratches that don't come off, or parts where the mirror finish is missing, the coating has already been permanently damaged and should be removed. You can find instructions for removing and replacing the film here.
Many brands used these coatings including Mitsubishi, Sony, JVC, IBM, and more. Usually if the underlying tube technology is aperture grille-based and the monitor is a higher performance PC monitor, it can be assumed the tube has this fragile coating. The user manual of the monitor will also mention not to use any cleaning products on the screen.
Here is an example of what permanently damaged glare coating looks like: Click to open Image
This monitor includes digital convergence controls, accessible through the OSD menu.
Sony's original G220 monitor had a very different form factor than the P77. This is reflected in the internal design, as the metal shielding is much smaller than the outer shell.
Unlike many 19" and 21" Sony PC monitors from this time period, this model has a manual G2 adjustment pot and doesn't suffer from excessive brightness like its larger siblings. However, color balance has usually drifted over time. Calibration using WinDAS will noticeably improve image quality.
Gallery
| Specifications | |
|---|---|
| Manufacturer: | IBM |
| Actual_manufacturer: | Sony |
| Model: | P77 |
| Series: | P |
| Size: | 16" |
| Inputs: | VGA |
| Sync: | HV Sync |
| Resolutions: | VGA, SVGA, XGA, SXGA, UXGA |
| Horizontal: | 30 kHz, 94 kHz |
| Vertical: | 48 Hz, 170 Hz |
| Aspect: | 4:3 |
| Adjustments: | OSD Customer Controls, Software Calibration |
| Horz_out_trans: | 2SC2681 |
| Vert_ic: | LA78040 |
| Flyback: | 8-598-868-00, NX-4405 |
| Tube: | Sony FD Trinitron , M41LRL70X |
| Heater: | 6.3v |
| Deflection: | 90 deg. |
| Mask: | Aperture Grille |
| Pitch: | .24 mm |
| Tint: | Dark |
| Tint_removable: | Yes |
| Yoke: | 8-451-522-11, Y17TKJ3-Y |
| Yoke_h_inductance: | 0.11145 mH |
| Yoke_v_inductance: | 3.822 mH |
| Yoke_h_resistance: | 0.50 ohms |
| Yoke_v_resistance: | 13.37 ohms |
| Speakers: | None |
| Chassis: | 17VC |
| Weight: | 42.1 lbs (19 kg) |
| Application: | Computer Monitor |
| Launched: | 2001 |
| Country: | Mexico |
| Mounting: | Desk Stand |
| Degaussing: | Automatic on Power-on, Manual |
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