YLJSJ-2 computer installation and maintenance skills appraisal experimental platform
YLJSJ-2 computer installation and maintenance skills appraisal experimental platform
1. Technical parameters :
1. Length 1400mm, width 650mm, height 1695mm; vertical floor installation.
2. Working voltage: AC220V±5% 50±1Hz
3. Machine power: 1.0KVA 2.
Equipment composition:
1. Product size: length 1400mm, width 650mm, 1695mm; vertical floor installation.
2. The m*n structure of the tr*ning table is made of high-performance surface-oxidized aluminum profiles and one-time aluminum die-cast frame connecting components. The connecting components adopt die-casting molding process (non-welding process), and are machined, shot blasted, sandblasted, and surface electrostatic sprayed. Advanced technology, easy and fast installation, users can DIY assemble by themselves. The uprights of the table body are made of industrial aluminum profile molding technology, with surface oxidation treatment. The cross-sectional size is 70×70mm, with grooves on all sides, the width of the groove is about 8mm, and the ends are equipped with plastic plugs. The desktop is made of 25mm E1 grade melamine decorative panel. There is a support frame under the desktop panel with a bearing capacity of not less than 300kg. There is a combined keyboard drawer in the middle, which can place a mouse and keyboard for easy operation.
Two legs with a cross-section size of 70×70mm behind the tr*ning table extend upward and form a solid bracket (non-welding process) with the one-time aluminum die-cast frame connection component. Together with the tr*ning screen, instrument rack, and power control box, it forms a complete tr*ning table. Tr*ning screen.
3. Three module positions are reserved at the bottom of the console. A double-break safety lightning protection power switch protection device is installed in the middle. The left and right positions are used to place tools, etc. Each module position is directly equipped with threading holes.
4. The bottom of the operating table is designed according to the tool hanging plate structure, and is equipped with a monitor fixing device, which can adjust the height and inclination of the monitor to facilitate students' practical tr*ning operations. It can also be conveniently hung for various practical tools and tr*ning wires.
5. Equipped with a computer host storage cabinet, made of steel structure, surface sprayed with plastic, and equipped with swivel casters at the bottom for easy movement.
3. Product functions:
 1. Equipped with 1 set of "double-break safety lightning protection power switch protection device", which complies with national CCC certification standards. The safety power supply m*nly provides 8 sets of 220V AC power socket interfaces, leakage protectors, and 360-degree rotatable fixing brackets. The key switch has a power indicator light for power supply indication. The separated electrode design separates the fire and ground to a safe distance to avoid crossing and causing short circuits. The double-break safety switch design can double-break with one button to reject the safety hazards caused by line crossing and truly achieve safety. reliable.
2. Able to conduct computer host disassembly tr*ning.
3. Be able to conduct practical tr*ning on computer host accessories identification.
4. Able to conduct practical tr*ning on the installation of computer host accessories.
5. Able to conduct practical tr*ning on computer hardware testing.
6. Able to conduct practical tr*ning on computer software testing.
7. Able to conduct practical tr*ning on computer m*ntenance.
8. Able to conduct practical tr*ning on computer operating system installation.
9. Able to conduct practical tr*ning on computer system m*ntenance.
4. Configure a special computer motherboard that can quickly set faults.
1) M*nstream ATX motherboard. The motherboard is specially designed with ≧20 fault setting points and uses jumper caps to quickly set faults and return to normal. Faults are divided into 10 categories, including CPU control terminal f*lure, chipset f*lure, memory f*lure, display f*lure, sound effect f*lure, network f*lure, expansion slot f*lure, internal socket f*lure, interface f*lure, and BIOS setting f*lure.
2) The motherboard is specially printed with fault identification, represented by F1-F21. For example, F1 and F2 are CPU control terminal f*lures; F3 and F4 are chipset f*lures; F5, F6_1, and F6_2 are memory f*lures, etc.
3) The motherboard is specially integrated with a diagnostic card, digital tube and buzzer circuit, which can accurately determine the fault type.
4) The motherboard is specially printed with the Chinese logo of the circuit module area, including the central processor area, south bridge chip area (PCH), memory slot area, super input and output interface chip area (SIO), sound card chip area, network card chip area, There are 10 areas on the rear panel: socket area, internal socket area, fault setting area, and PCI-E expansion area, which facilitate students to quickly and efficiently find the area where the corresponding circuit is located when learning computer principles and fault detection, so as to accurately troubleshoot. Cause of f*lure.
5. Equipped with 1 set of full-module ATX switching power supply and extended wiring harness
1) Full-module ATX switching power supply, rated power 500W. Overall dimensions: 150mm×140mm×86mm. Input voltage 100-240V, output voltage +3.3V, +5V, +5VSB, +12V, -12V.
2) The switching power supply port includes ① CPU power supply port, the output voltage is +12V; ② SATA power supply port, the output voltage is +3.3V, +5V, +12V; ③ 24PIN motherboard power supply port, the output voltage is +3.3V, +5V, + 5VSB, +12V, -12V.
3) The switching power supply port is printed with serial number, interface type and voltage identification. It is convenient to quickly recognize and find the power interface and prevent misplugging.
4) Special extended wire harness, 900 mm long, which can move the motherboard out of the chassis for inspection and m*ntenance. Each group cable has a serial number, interface type, and voltage identification, and corresponds to the power port one-to-one to improve wiring efficiency and prevent misplugging.
5) The wiring harness configuration is as follows:
① 1 CPU power supply line, 1 8PIN interface, used for CPU power supply;
② 1 SATA power supply line, 3 SATA interfaces, used for power supply of SATA hard disk and SATA optical drive;
③ 1 24PIN motherboard power supply line , 1 24PIN interface for motherboard power supply.
6. 1 set of computer fault diagnosis jig box
1) 1 switch controller jig.
It is designed with 1 power switch, 1 restart switch, 1 power working indicator light and 1 hard disk working indicator light. Used to diagnose the power switch, restart switch, power supply working status and hard disk working status.
2) 1 set of audio diagnostic jig.
It consists of a front panel audio diagnostic jig board and an audio group cable. The audio group cable has 5 audio connectors. Used to diagnose faults in the 9-pin audio socket on the front panel and the 5 audio connectors on the rear panel.
3) Two COM diagnostic fixtures
are designed with full signal loops. Used to diagnose COM serial port socket f*lures.
4) 1 set of USB diagnostic fixtures
consists of 2 USB diagnostic fixtures and 2 USB interface testers. Used to diagnose USB2.0 and USB3.0 connection status.
7. 1 set of computer fault automatic testing software
1) The software login interface can record the name of the tester, the certificate number and the ISN number of the motherboard to be tested.
2) The software testing interface consists of menu bar, running area, test area, right information area, and bottom status area.
3) There are 13 types of software f*lure tests, including: CPU test, memory test, hard disk test, keyboard and mouse test, PCIE test, network test, USB test, audio test, COM serial port test, sleep test, VGA test, DVI test, HDMI test.
4) Software features:
(1) Able to automatically test 33 common computer faults in 13 categories;
(2) With the login function of tester name, certificate number and motherboard ISN number;
(3) Free selection of faults for testing;
(4) Software Automatically display fault information, green is "PASS" and red is "F*L".
(5) Automatically generate fault test reports to facilitate teacher management and assessment.
8. 1 set of m*ntenance-level computer supporting hardware
1) 1 central processing unit (CPU). Compatible chipsets: ×300.
2) 1 hard drive. Capacity 1TB, rotation speed: 7200RPM, cache: 64MB, interface: SATA interface.
3) 2 pieces of memory. Memory capacity 4GB, DDR4 2666.
4) 1 graphics card. Output interface: 1 VGA, DVI, HDMI each, video memory capacity: 2G, maximum resolution: 1920×1080, with cooling fan.
5) 1 network card. PCI-E×1 interface, network port RJ45, 10/100/1000M adaptive.
6) Sound card 1 piece. PCI-E×1 interface, supports 5.1 channels.
7) 1 optical drive. SATA interface, reading speed is 18 times faster.
8) 1 keyboard and mouse set. 1 PS/2 keyboard and 1 USB mouse.
9) 1 computer headset. 3.5mm audio interface, cable length >1.8m.
10) 1 chassis.
9. 1 set of commonly used computer m*ntenance tools
and 1 USB flash drive. Capacity 16GB.
2. 1 set of hot *r gun soldering station. Cont*ns 1 heat gun, 1 set of constant temperature soldering iron and soldering iron stand.
3. The network cable is 5 meters. Cat5 network cable.
10. Teaching circuit motherboard welding and rep*r tr*ning kit 1. Electronic welding tr*ning kit box
 for junior workers
: Junior functional tr*ning board: m*nly to meet the teaching tr*ning of plug-in component welding.
Teach students to understand the soldering of plug-in resistors, plug-in diodes, plug-in non-polar capacitors, electrolytic capacitor icons and plug-in chips.
The resistors use two common specifications of design pads, 1/8W and 1/4W, and three pad spacings are designed: sparse, normal, and dense.
LED welding uses two pitches of ø3 and ø5 to form the word 'OK'.
The primary function tr*ning board welding m*nly teaches students skills such as direct plug-in component recognition, component shaping, plug-in, and welding.
Students can also be taught how to identify resistor color rings.
Primary functional tr*ning board
(1)  product specifications: length = 130mm, width = 125mm, height = 19mm.
(2) Product function:
m*nly to meet the teaching and tr*ning of plug-in component welding. Teach students to understand the soldering of plug-in resistors, plug-in diodes, plug-in non-polar capacitors, electrolytic capacitor icons and plug-in chips. The resistors use two common specifications of design pads, 1/8W and 1/4W, and three pad spacings are designed: sparse, normal, and dense. LED welding uses two pitches of ø3 and ø5 to form the word 'OK'. The primary function tr*ning board welding m*nly teaches students skills such as direct plug-in component recognition, component shaping, plug-in, and welding. Students can also be taught how to identify resistor color rings.
(3) Product structure:
1) 1 piece of welding tr*ning circuit board for junior workers, green.
2) 41 plug-in light-emitting diodes, red, diameter Φ3mm.
3) 72 direct-plug metal film resistors, resistance value 3KΩ, power 1/4W.
4) One direct-plug power supply t*l plug, three-pin, jack Φ5.5×2.1mm, used for external power supply.
5) One direct-plug self-locking switch, six pins, used for power switch.
6) 2 plug-in electrolytic capacitors.
7) 2 plug-in monolithic capacitors.
6) 2 plug-in diodes.
7) 2 plug-in integrated chips.
8) 1 blister packaging box.
9) 1 copy of product manual.
(4) Product features:
1) The product selects common plug-in components, including plug-in metal film resistors, plug-in red light-emitting diodes, plug-in self-locking switches, plug-in power t*l plugs, plug-in Plug-in non-polar capacitors, electrolytic capacitors, in-line diodes, in-line integrated chips and other electronic components build a practical application environment for LED light signs, allowing students to conduct theoretical and practical tr*ning operations in a real application environment .
2) The product is specially designed with 3 spacing pads, which are divided into three tr*ning modules: sparse, normal, and dense, to gradually improve the welding skill requirements.
3) The product specially uses parallel connection to connect each branch to ensure that each branch does not affect each other, so that during power-on inspection, the location of the welding fault can be accurately found and corrected in time.
4) The welding effect of the product is graphically displayed, which intuitively and visually displays the welding effect. At the same time, the packaging is neatly arranged and beautiful, making it convenient for plug-in and welding.
5) The product has mounting holes and vertical placement holes, which ensures that the tr*ning board is independent of the desktop during power-on testing and improves testing efficiency.
 2. Intermediate electronic welding tr*ning kit box:
Intermediate functional tr*ning board: m*nly for teaching and tr*ning of patch component welding.
It includes welding skills tr*ning areas on the left and right sides and a practical area in the middle.
The basic tr*ning area has three pads: 1206, 0805, and 0603.
The actual combat area is designed in a "five-pointed star" style to visually display the welding effect.
Intermediate functional tr*ning board welding m*nly practices patch component disassembly and welding skills.
You can also learn the 0603 resistance value lookup table.
Intermediate functional tr*ning board:
(1) Product specifications:
length = 130mm, width = 125mm, height = 19mm.
(2) Product function:
m*nly for teaching and tr*ning of patch component welding. It includes welding skills tr*ning areas on the left and right sides and a practical area in the middle. The basic tr*ning area has three pads: 1206, 0805, and 0603. The actual combat area is designed in a "five-pointed star" style to visually display the welding effect. Intermediate functional tr*ning board welding m*nly practices patch component disassembly and welding skills. You can also learn the 0603 resistance value lookup table.
(3) Product configuration:
1) 1 welding tr*ning intermediate circuit board, green.
2) The left and right sides of the welding tr*ning board are basic practice areas, and the middle is the welding display functional area: 19 1206 chip resistors with a resistance of 3KΩ; 70 0805 chip resistors with a resistance of 3KΩ; 21 0805 chip capacitors , non-polar, capacitance is 100nF; 20 0603 chip resistors, resistance value is 3KΩ; 20 0603 chip capacitors, non-polar, capacitance is 100Nf, 1 chip electrolytic capacitor 100Uf, 1 chip diode M7.
3) The tr*ning areas on both sides are m*nly used for welding tr*ning. The middle display area: consists of 0805 patch red LEDs and 0805 patch resistors. After welding is completed, it lights up to display the "pentagonal star" graphic, which is m*nly used to evaluate the welding effect. test.
4) 1 blister box.
5) 1 copy of product manual.
(4) Product features:
1) The product selects common different packaged components, including chip resistors of different sizes, chip capacitors of different sizes, chip light-emitting diodes, self-locking switches, power plugs and other electronic components to build The actual application environment of LED light signs is shown, so that students can conduct theoretical and practical tr*ning operations in a real application environment.
2) The product is specially designed with a basic welding skills tr*ning area and a practical functional welding area. The basic welding skills tr*ning area is designed with three types of packages, with package sizes ranging from large to small, 1206, 0805, and 0603, to gradually improve students' welding skills.
3) The actual welding area is designed in a "five-pointed star" style to visually display the welding effect.
4) The product specially uses parallel connection to connect each branch to ensure that each branch does not affect each other, so that during power-on inspection, the location of the welding fault can be accurately found and rep*red in a timely manner.
3. **Industrial electronic welding tr*ning kit box:
**Functional tr*ning board: M*nly designed to meet the teaching and tr*ning of integrated chip welding.
In the left and right welding areas, the experimental areas for removing and welding SMD chips such as 8PIN, 14PIN, 16PIN, and 20PIN are drawn, and functional circuits such as marquees and flashing lights (heart-shaped style) are drawn in the middle.
**The functional tr*ning board includes SMD chips, resistors, capacitors, diodes, transistors, potentiometers and other components, allowing welding personnel to quickly master troubleshooting and m*ntenance skills.
**Functional tr*ning board:
(1) Product specifications: length = 130mm, width = 125mm, height = 19mm.
(2) Product function:
m*nly to meet the teaching and tr*ning of integrated chip welding. In the left and right welding areas, the experimental areas for removing and welding SMD chips such as 8PIN, 14PIN, 16PIN, and 20PIN are drawn, and functional circuits such as marquees and flashing lights (heart-shaped style) are drawn in the middle. **The functional tr*ning board includes SMD chips, resistors, capacitors, diodes, transistors, potentiometers and other components, allowing welding personnel to quickly master troubleshooting and m*ntenance skills.
(3) Product configuration:
1) 1 welding tr*ning circuit board, green.
2) Light emitting diodes. 49 red, packaged as 0805.
3) One power socket. Direct plug-in type, inner and outer diameter of the jack: Φ5.5×Φ2.1mm.
4) 1 self-locking switch. Direct plug-in, six pins.
5) 1 NE555 chip, SMD type, package SOP8.
6) 6 CD4017 chips, SMD type, package SOP16.
7) 4 AT24C02 chips, SMD type, package SOP8.
8) 4 74HC00 chips, SMD type, package SOP14.
9) 4 74HC541 chips, SMD type, package SOP20.
10) One adjustable resistor, resistance value: 5KΩ.
11) Transistor, chip type. Model S8050, 2 pcs.
12) Diode. Model 1N4007 patch type 2008, 1 piece.
13) Chip resistor, package 0805. Resistance 1KΩ, 4 pcs; resistance 3KΩ, 21 pcs; resistance 100Ω, 1 pc; resistance 5.1KΩ, 1 pc.
14) 5 non-polar capacitors. SMD type 0805, 0.1Uf 4 pieces, 0.01uF 1 piece.
15) Electrolytic capacitor. SMD type, 10uF/25V, 1 pc. 100uF/25V, 1 pc.
16) 1 blister box.
17) 1 copy of instruction manual.
(4) Product features:
1) The product selects integrated chips, capacitors, resistors, transistors and other components to build a marquee circuit and a flashing light circuit. The speed of the marquee is controlled by adjusting the potentiometer. It has diverse functions and effects. Intuitively obvious.
2) The product components are selected to fit the computer motherboard, allowing welding personnel to quickly master motherboard troubleshooting and rep*r skills.
3) The product design has mounting holes, product model, name, class, date and other information for easy management.
4) The product is an integrated circuit printed board, which saves circuit construction time, makes welding convenient, and makes testing efficient. It fully demonstrates product performance and characteristics, and is beautiful, safe and reliable.
11. Product structure of computer assembly and m*ntenance toolbox
:
1. This toolbox is a special toolbox for computer assembly and m*ntenance, which meets the needs of computer assembly and m*ntenance, teaching tr*ning and skill assessment.
2. The tool box is made of arc-shaped aluminum profiles and aluminum plate casings, which is beautiful and easy to carry.
3. The convex-concave sponge slots are specially designed and molded for each tool inside, which can fix each tool and make it easy to access.
4. The tools selected are all commonly used brand tools in engineering, which are strong and durable.
5. The inside of the tool box is equipped with a special molded lining to firmly fix tools, quickly access tools and position and store tools.
6. Each tool has a corresponding slot, which facilitates quick recognition of the tool and easy access to the tool.
Product configuration:
1. 1 aluminum profile box, for placing tools;
2. 2 Phillips screwdrivers, for fixing screws;
3. 1 slotted screwdriver, for fixing screws;
4. 1 needle-nose pliers, for clamping objects ;
5. 1 anti-static tweezers, for holding objects; total length 120mm, black, bright. Used to bend component pins when using electronic welding tr*ning boards.
6. 1 electric test pen, used to measure the power supply;
7. 1 magnifying glass, used to observe the electronic components of the circuit board; used to check the solder joints of the circuit board components.
8. 1 micro-light; used to observe the electronic components of the circuit board;
9. 1 cleaning ball, used to clean dust;
10. 2 anti-static bracelets, used to prevent static electricity on the body;
11. 1 screw box, used to place small magnets and screws; used to store disassembled screws in the chassis.
12. 1 small magnet, used to absorb small screws;
13. 1 wool brush, used to clean dust; used to clean electronic welding tr*ning boards or motherboards.
14. 1 p*r of RJ45 network crimping pliers, used for crimping crystal heads;  
15. 1 p*r of water-mouth pliers, used for cutting cables; scissors, with spring. Used to cut off excess component pins during electronic soldering.
16. A digital multimeter with LED screen with backlight, DC, AC, resistance, diode and other multi-level adjustments, equipped with red and black test leads. Used to test the voltage, current, resistance, etc. of the motherboard circuit.
17. Power adapter, single-phase 2-pin plug; output DC5V, rated current 1A, USB interface. 1 connecting cable, USB plug, DC5.5xΦ2.5 plug, length 1.3 meters. Used for power-on test of electronic welding tr*ning board.
18. Anti-static gloves, striped gloves, one size fits all, used to prevent static hazards during assembly and m*ntenance.
19. 10 crystal heads, Category 5e unshielded RJ45 crystal heads, used for making network jumpers.
20. Wipes 2 quick, absorbent rags. For cleaning the chassis and monitor.
21. 1 roll of solder wire, wire diameter 0.8mm. Used for soldering circuit board components.
22. Velcro 0.5 meters, thin, back-to-back Velcro, width 15mm. Used for cable management inside or outside the chassis.
23. Solder gun, length 210mm. Used to remove components from circuit boards.

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