Training module for yuy-jd85 lcd television maintenance
Overview:
The lcd tv hands-on devices are suitable for the use and maintenance of electronics and appliances in the manufactures of higher and secondary vocational technical institutions, and the teaching and practical training of the lcd colour television principles and maintenance and lcd maintenance courses in the application of electronic technologies such as information technology. The 32-inch lcd tv hands-on device is also suitable for internships in the electronics course of the technical school " lcd colour television maintenance " , which can also be used for training examinations in intermediate and advanced classes of electrical home maintenance for vocational skills identification units and vocational training institutions。
Equipment characteristics:
1. As technology advances, sophisticated lcd tv masterboards and meta-ware magnifiers are difficult to see, preventing teachers, students and electronics lovers from analysing the circuits, repairing hands-on teaching, etc
To this end, our company has invested its technologists in the development of this lcd maintenance lab, which conducts anatomical analysis research through the main panel, thus developing a section that expands the precise main panel circuit board, designs a single, clear and independent display of each meta-device in front of the eyes, modular combinations, shape visualization, the general use of stickers, welding testing facilities, the provision of comfortable products to facilitate empirical testing, solves long-challenged problems of teaching and fills the gap in lcd teaching products
2. This hands-on device, the lcd circuit board, has the characteristics of simplicity, robustness and performance。
1) the use of an open board with complete installed circuit maps, test points, adjustment points, a reasonable layout and easy to insert
2) have leaks, short circuits, overload protections, colour power using cold substrates and double protection with isolation transformers, with digital voltage, current output displays on the plate
3) for instrumentation, with clarity, sensitivity, stability above conventional household electromechanical laboratories
4) in order to meet the needs of schools, smart appraisal devices have been added to the palettes. The failure points are set up by the teacher computer in accordance with the requirements of the appraisal, and are transmitted through the appraisal system to the student's open-coloured physical training module, where the student answers the questions using a computer or a single machine answering machine。
5) equipment with a physical examination of 17 fault points, 24 fail-set switches, easily tested by a meter/shower and test needles。
(experiment panel pictures)
Technical parameters, configuration and functions:
1. High-clean colour signal generator, 16 test signals for lcd hf head and video receiver。
2. Examination and verification module, sequenced and clearly intuitive equipment, test-testing ease, maintenance convenience
3. Lcd technology parameters:
1) monitor dimensions: 32
2) contrast: 600:1
3) resolution: 1366 x 768
4) response time:
5) screen brightness: 1000 cd/m2
6) perspective: > 160 degrees
7) the cross-reference: 16:9
8) format: ntsc/pal/secam
9) enter: ypdp; ycbcr
10) audio: srswow 3d circumference
11. Work power: avll0-240v 50/60hz
12) colours: 1. 67 million
13) pixels: 1. 67 million。
4.(1) computer interfaces for hands-on modules ( bus control, audio processing, functional switching, screen-driven data signals), audio and video input interfaces, usb plugins, high-resolution interfaces, etc
5.(2) operational module power control, acoustic circuit, high frequency head circuit
6. (3) the overall parameters of the solid-pressure power circuit 7 of the hands-on table in the hands-on module:
7-1 input source: ac 220v (1)(10%) 50hz
7-2 outer size: long (mm) x width (mm) x height (mm) = 1500 x 700 x 780
7-3 hands-on training station material: melamine plates on the main panel
7-4 working temperature: 0 ~ 35 °c
7-5 work humidity: 20% - 80%
7-6 security protection:
1 battery protection motion current: ≤30ma, ≤0. 1s
2 with protective measures for overpressure, overflow, overload, and leakage, in accordance with national standards
8. Instructions for the operation of equipment: provision of a working chart of lcd television, a circuit chart and a training module
Iv. The pilot hands-on training project:
1) the basic structure and working principles of the main metaware in lcd tv
2) understanding the composition of the main units of lcd television and understanding its underlying working principles
3) measurement and analysis of electronic tuners
4) remote control and keyboard control measurements and analysis
5) video signal processing process measurement and analysis
6) audio signal process measurement and analysis
7) ad module conversion control measurement and analysis
8) switch steady voltage circuit measurement and analysis
9) reverser backlight drive circuit measurement and analysis
10) physical training on all circuits of the whole machine
11) lcd driver in hands-on training
Pilot projects for the completion of pilot, hands-on studies
I: project to test the whole machine without fault and the whole bridge without fault
Ii: flow filter 450v circuit failure test
Iii: pilot project for the physical training of power-based photovoltaic circuits
Iv: experiment for the physical training of power filter circuit failure
V: no 12v unserviceable hands-on test project
Vi: experiment for the physical training of backlight source failure
Vii: pilot project on hands-on training for server 5v steady voltage circuit failure
Viii: project to conduct a hands-on test of the pending 3. 3v steady voltage circuit failure
Ix: cpu nuclear 1. 2v circuit fault practical training experiment project
X: pilot project for the practical examination of the 1. 8v fault of the cpu power circuit
Xi: ppu vibration circuit fault practical training experiment project
Xii: field training on electrical circuit failure of storage units (1) pilot project
Xiii: field training on circuit failure of storage units (2) pilot project
Xiv: pilot project on hands-on training for video input circuit failure
Xv: experiment for the physical training of audio input circuit failure
Xvi: usb practical training experiment on circuit failure
Xvii: pilot project on hands-on training in static circuit failure
Xviii: hf headline circuit failure test (1) pilot project
Xix: field training on high frequency head circuit failure (2) pilot project
Xx: pilot test for physical training in high-frequency head power failure
Twenty-one: hf head leak test test
Xxii: experiment for the physical training of high frequency head integration failure
Twenty-three: pilot project on remote reception of electrical circuit failure
Xxiv: pilot project on the physical training of key-line circuit failure
Xxv: pilot project for hands-on training in acoustic circuit failure (1)
Xxvi: volume control circuit failure test
Xxvii: pilot project on hands-on training for the integration of acoustic circuit damage
Xxviii: pilot project for the physical training of auxiliary power circuits
Xxix: pilot project on hands-on examination of speaker-out circuits
Xxx: the light on the back is bright and silent
