ZM6102 Color TV Trainer Vocational Training Equipment Home Appliance Trainer
This color LCD TV trainer is suitable for “LCD TV maintenance”, “LCD TV fault diagnose”
class. It is suitable for technical school, college, university, engineer training centers, and
II. Technical specifications
1. Control and AC power part
a. Supply single phase, AC power supply, wire direct short circuit auto protection. Current type voltage leakage switch start, and stop button control training workbench work power. With alarm and reset function. With experiment management system, with password management system, start and setting time switch off function.
b. Supply ~220V, plug 2 units, supply external power for instruments.
2. DC power part
a. Constant and steady voltage power, 2 roads output voltage is 0-30V, inner relay auto range. Multi coil potentiometer continuously adjust, it is easy to use. Output current max is 1.5A, with preset current limit protection function. Output max current is 1.5A. With preset current limit protection function. With 0.5 class digital current meter, voltage indicator, load steady degree is 10-2, ripple voltage 5mv.
b.Switch power: +5V,+24V,12V.
3. Light tube test high pressure power: equip with digital milliampere meter indicate output current, with open load, short circuit protection function.
4. Other human control program input.
5. Normal color LCD TV signal generator: use large scale program pogic controller with Pixel algorithm high resolution color TV signal source.
With clear photo, sequence accuracy, photo center and frame can be positioned to a
Sampling rate is height(74.25MHZ and 148.5MHZ)
Color is accurate(each color base use 8 bits, three basic color, in total 24 bits basic
With 10 kinds display photo and 5 kinds display mode, two signal format(VGA, YpbPr)
Photo selection with “auto”’ and “manual” two mode.
a: display mode(high definition 4 kinds, SD-SDI 1 kind)
b: Display photo in total 10 photos (note: 720×483P60)
Color bar(75/0/75/0)white raster(75)Red raster(75)green raster(75)blue raster(75)black raster 12 steps cross center and display amplitude(90, 95, 100)Fourth order board color board(3)Scan, signal format and reference standard
a. Scanning synchronization for single polarity negative level
b. VGA signal (R, G, B, H, V), for the standard VGA level 1 V - pp
c. Y pb Pr signal (refer to the ITU and national related standards SJ/T) standard color bar signal is 1 vp - p.
d. Y pb Pr by R, G, B signal transformation, 4, 4, 4 samples
6. Training workbench: Whole structure is made of cold rolled steel sheet forming, pickling phosphide, surface electrostatic spraying, and is equipped with four wheels and four fixed adjusting mechanism, the convenience of mobile and fixed, laboratory layout.
Desktop for waterproof, fire prevention, resistance mo high density board, solid structure, beautiful and generous. Equipped with drawers for tools and materials, etc. Platform size: length x width x is 1200mm×600mm×750mm, it’s small dimension, easy for transportation.
7.32” Color LCD TV
1. LCD display dimension: 32”
2. Contrast: 400:1
3. Resolution: 1920 x 1080
4. Reaction time: < 16 ms
5. Screen brightness: 500 CD / ㎡
6. Perspective: 178 degrees
7. Screen ratio: 16 :9
8. Format: NTSC/PAL/SECAM
9 Enter type: YPbPr, VGA, HDMI, AV, USB
10. Working power supply: AC220V ± 10%, 50 Hz;
11. The environment temperature 5 ℃ ~ 35 ℃;
12. Relative humidity: 85% or less (25 ℃);
13. The whole machine power consumption: < 100 w.
14. Signal input: 48MHz-470MHz (RF)
15. Platform dimension: (length x width x high)1700 mm * 650 mm * 650 mm
IV. Training program
LCD TV training project
1, Identify knowledge structure. LCD television inner structure
2. Understand the basic structure of the main components in LCD TV;
3, To understand the major components of LCD TV basic principle;
4, Recognize LCD TV main composition of unit circuit;
5 Understand LCD TV main unit circuit work principle
6, Recognize composition and working principle of LCD liquid crystal display
7, Understanding the function and principle of the main IC;
8, factory menu entry method and debugging;
8, Factory menu entry method and debugging;
9, SMD components welding method;
10, LCD TV switching power supply circuit work principle
11 The detection and processing of without raster, without image, without accompanying ,
the so called “three without fault phenomenon”
12, Remote control indicator turn on, without raster, without image, without
accompanying , the so called “three without fault phenomenon” maintenance instruction
13, LCD is ok, with sound, without image fault phenomenon detection
14, Screen is bright, no sound, no image fault phenomenon maintenance guidance;
15, Sound is normal, black screen fault phenomenon detection and processing;
16, No sound, image is ok, detection and processing
17, Press buttons no reaction malfunction phenomenon detection and processing
18, Remote control no reaction malfunction phenomenon detection and processing;
19, AV image is normal, no sound fault phenomenon of maintenance guidance;
20, White screen fault phenomenon of maintenance guidance
21, Image color cast or miss color pure image fault phenomenon maintenance guidance
22. Screen image mix problem and maintenance guidance
23. After connect in VGA, no Signal failure phenomenon maintenance guidance
24, Indicator is not turn on problem maintenance guide
25, On one side horn sound fault phenomenon detection and processing
26, No color breakdown phenomenon maintenance guidance
27, LCD screen dead pixel tester method
28, LCD interface definition
29, Machine assembly
30, Electronic tuner measurement and analysis method
31, Video signal processing, process measurement and analysis
32, Audio signal processing and analysis
33, AD modulus conversion control survey and analysis
34, Switching circuit measurement and analysis
35, Inverter through light circuit measurement and analysi