Sony HMD-A240
September 8, 2024, 2:10 am
Summary
17" flat CRT computer monitor from Sony, styled to match the Vaio series of PCs. Internally, it is the same as the CPD-E240. The similar HMD-A240R has the same internals and front bezel, but a different back shell. It is capable of a 70 kHz horizontal scan rate.
Literature
Notes
Many of Sony's PC monitors from this generation include an hour counter. To access it, turn on the monitor with no input signal, then push and hold "down" on the control button for a short time.
This monitor includes digital convergence controls, accessible through the OSD menu.
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.
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
Gallery
| Specifications | |
|---|---|
| Manufacturer: | Sony |
| Actual_manufacturer: | Sony |
| Model: | HMD-A240 |
| Series: | HMD |
| Size: | 16" |
| Inputs: | VGA |
| Sync: | HV Sync, CSYNC, Sync on Green |
| Resolutions: | VGA, SVGA, XGA, SXGA, UXGA |
| Horizontal: | 30 kHz, 70 kHz |
| Vertical: | 48 Hz, 120 Hz |
| Aspect: | 4:3 |
| Adjustments: | OSD Customer Controls, Software Calibration |
| Horz_out_trans: | 2SC5681 |
| 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: | 8-451-522-21, Y17TKJ3-S |
| 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: | 41.9 lbs (19 kg) |
| Application: | Computer Monitor |
| Launched: | 2002 |
| Country: | Mexico |
| Mounting: | Desk Stand |
| Degaussing: | Automatic on Power-on, Manual |
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