Sony KV-19TR20
October 2, 2024, 12:50 pm
October 3, 2024, 8:26 am
Summary
Standard consumer Trinitron from the late '80s and early '90s, with RF and mono A/V inputs. Uses the same chassis design as the KV-13TR24.
Literature
Notes
This was among the last true 19" consumer Trinitrons that Sony produced. The tube has a noticeably more pronounced curvature than the 20" models. It was also one of their last TVs of this size to include a pincushion correction circuit, and has adjustment pots for horizontal geometry.
This generation of Trinitrons is not completely compatible with later Sony remotes. While basic controls such as channel select, volume, and power are the same, picture adjustments cannot be changed from the front panel and require "Select" and "Picture +/-" buttons that are missing on newer remotes. Obtaining an original remote is essential to properly enjoy these TVs.
Despite having A/V inputs, this TV uses a hot chassis design and should not be modified for additional inputs. Instead of isolating the entire TV, the input signals are transmitted using optocouplers.
Hot Chassis means that "ground" on the chassis is tied to one side of the AC input from the wall, and touching it with your hand will complete a live circuit through your body to earth ground if the CRT is plugged into an AC outlet. The proper way to avoid this danger is to use an isolation transformer to isolate the CRT from earth ground and prevent electrocuting yourself.
Gallery
Specifications | |
---|---|
Brand: | Sony |
Manufacturer: | Sony |
Model: | KV-19TR20 |
Series: | KV |
Viewable Size: | 19" |
Inputs: | Composite |
Resolutions: | 240p, 480i |
Horizontal Scan Range: | 15 kHz |
Formats: | NTSC |
Aspect: | 4:3 |
Adjustments: | Internal Potentiometers, OSD Customer Controls |
Vertical Output IC: | uPC1378H |
Jungle: | CXA1013AS |
Tube: | Sony Trinitron , A49JLV50X |
Heater Voltage: | 6.3v |
Deflection: | 90° |
Mask: | Aperture Grille |
Tint: | Dark |
Yoke Horz. Inductance: | 1.4164 mH (@ 10 kHz) |
Yoke Vert. Inductance: | 23.17 mH (@ 100 Hz) |
Yoke Horz. Resistance: | 1.61 ohm |
Yoke Vert. Resistance: | 11.19 ohm |
Speakers: | Mono |
Remote: | RM-781 |
Chassis: | P-3B |
Application: | Consumer |
Launched: | 1989 |
Country of Manufacture: | Mexico |
Degaussing: | Automatic on Power-on |