Module DB407 - Design for X
Contents
1. Another competitor worth mentioning is the Mitsubishi Diamond Pro 2060u Often said to be superior in image quality over the Trinitron Img 2 Sony CDP monitors it was also more expensive As this monitor also seems to be G520 and HP p1130 even less sold this emphasizes that the market preferred the cheaper ones of the high quality monitors and Dell struck the balance right Regarding the release date we suspect HP was the first somewhere in the year 2000 although we have not been able to find a reliable date Dell released their 1130 in September 2001 and Sony followed in November 2002 In general we believe the Dell P1130 did well on the market Compared to its direct competitors the HP p1130 and Sony CPD G520 it had the lowest price with similar capabilities Although we have not been able to find sales numbers of these monitors online available year reports from Dell don t go back further than 2005 the quantity and quality of online sources and comments about each monitor suggest the Dell was more popular than its competitors To illustrate Dell p1130 gives nearly 3 times as much Google hits than HP 11130 or Sony G520 Market shift When LCD screens became broadly available on the market users who valued aesthetics over image quality or had only little space available massively switched to flat screens decreasing the market for CRT rapidly Also CRT monitors are often less capable of displaying text th2. analysis Special attention was spent on the way several parts were assembled and the possibility of taking it apart without breaking it Possibilities to take it apart would influence serviceability and maintenance but also add increased risks which influence safety of the product This and many more characteristics influence the quality of a design on a technical level Economical aspects of the product were analyzed by searching the internet for product details and trying to make an overview of the market especially the direct competitors The whole analysis will be described per topic and elaborated in detail Img 1 The Dell p1130 monitor Monitor description The PC monitor selected for this module is a Dell P1130 It s a 21 inch CRT monitor designed by Dell but build by Sony The official introduction reads The Dell P1130 was designed to accommodate a wide variety of users ranging from home and small offices to large corporate environments This monitor incorporates the FD Trinitron picture tube FD or Flat Display means that glare from ambient lighting is greatly reduced and straight lines look straight from all angles Displaying brilliant images at a maximum resolution of up to 1600x1200 pixels this monitor is ideal for Microsoft Windows CAD CAM CAE desktop publishing spreadsheets internet browsing and any other application that demands large screen size and high resolutions Those who require exceptional quality
3. and reliability at an affordable price will appreciate the value that the Dell P1130 delivers Although the description mentions a maximum resolution of 1600x1200 the monitor can actually handle 2048x1536 although Dell does not guarantee the image will be sized and centered correctly then Although physically large and heavy the image quality of the monitor if often recommended as exceptionally good especially regarding it s price Technical details Physical Monitor type Width Depth Height Weight Weight including packaging Operating temperature Nonoperating temperature Operating humidity Nonoperating humidity Operating altitude Nonoperating altitude Thermal dissipation Enclosure Color User Controls Image Diagonal size Diagonal viewable size Image Aspect Ratio CRT 497 mm 485 mm 502 mm 30 5 kg 35 5 kg 32 to 104 F 0 to 40 C 4 to 140 F 20 to 60 C 10 to 80 noncondensing 5 to 90 noncondensing 3 048 m 10 000 ft 10 675 m 35 000 ft 494 BTU hour max 426 BTU hour typical Gray black silver white up down menu input power 21 inch 19 86 inch 4 3 5 4 Image Type Max resolution Max Sync Rate V x H CRT type AR Anti Reflective coating Phosphor type Connections Connection Analog Video Signal Port s Connector s Required Plug and play supported Power AC input voltage Power Supply Device Volt
4. frame of this module we can conclude that the monitor was a favored and wanted product It was a good quality product but definitely also had some downsides It is clear that the monitor has a rather large environmental footprint due to its outdated CRT technology But it seems that much has been done to improve the environmental footprint on a technological level although mainly due to production costs With current day insights it is easy to say how parts could have been constructed differently to aid profit quality and the environment But at the time of construction both Rnowledge of construction and materials and priorities for making design decisions will have been different 25 References Books and papers James G Bralla Design for Excellence New York McGraw Hill 1996 ISBN 978 0 07 007138 4 Ab Stevels Integration of EcoDesign into Business a New Challenge Eindhoven Proceedings of Environmentally Conscious Design and Inverse Manufacturing First International Symposium On Ecodesign 1999 ISBN 0 7695 0007 2 Online sources Ciao com list of 27 inch CRT monitors http www ciao com CRT Monitors 10000947 2 21 inches 23 inches other resolutions w2 Fixya com HP P7130 user manual http www fixya com support p401028 hp p1130 21 in crt conventional monitor manual 3165 page 12 Dell com Dell P1130 Color monitor user s guide http support dell com support edocs monitors p1130 en ug index htm eserviceinfo com Sony G
5. 520 service manual http www eserviceinfo com download php fileid 20214 eserviceinfo com Dell P1130 service manual http www eserviceinfo com download php fileid 4790 Dell com History of Dell http www dell com content topics global aspx about dell company history history c us amp l e n amp s corp Rdc co uk English computer recycling assist company website http www rdc co uk It recycling nl Dutch computer recycling company http www it recycling nl html monitor html Wikipedia org Description of the manufacturing process of printed circuit boards http en wikipedia org wiki Printed_ circuit board Manufacturing Youtube com Movie about recycling http www youtube com watch v f8VfcmKDLiw Monitor reviews ciao co uk http www ciao co uk Dell P1130 5653060 reviewcentre com http www reviewcentre com reviews3326 html reviewcentre com http www reviewcentre com review143096 html epinions com http www epinions com Dell P1130 21 19 8 viewable Color Monitor CRT Monitors 320 3003 display reviews epinions com http www epinions com review 0509372 CPD G520 content 53524336260 overstock com http reviews overstock com 9876 1862273 reviews htm ebay com http catalog ebay com Dell P1130 Black 21 inch CRT Monitor WOOO fclsZ100 pidZ5212271200 tabZ3 tomshardware com http www tomshardware com forum 3031 3 dell p1130 rebadged sony g520 poor geometry tomshardware com comparing 6 21 inch monitors h
6. Module DB407 Design for Final report Niko Vegt Barbara Schachter Jeroen Brok Joran Damsteegt aid Hab SEE MIME ES PE HEM i 4 Contents a Ric Page 3 Monitor description ninia aiii Page 4 ECONOMIC EVALLIGEION sauna ein Page 6 ECONOMICALTECOMMEHAGEIONS u nee Page 8 Monitor disassembly circos iia Page 9 Technical description a Page 10 Technical A A Page 18 Technical recommendations AA nestelde Page 20 Technological environmental evaluation ss sseessossosssoessoesoossoossoesoocsocesossoocsoossooeso Page 21 Economical environmental evaluation sessssssesssscscssososcosososcosososcosososcosososcosososeosose Page 23 Environmental recommendations sessesesessenenesssnenesssnenesssnenessnenesssnenessnenesssnenesssnen Page 24 General cONCIUSIONS unsererseits Page 25 References nn didas sin Page 26 Introduction The module DB407 Design for X was partially based on the book Designing For eXcellence by James G Bralla The book contained several chapters which helped to analyze a product in a different way than the usual Within the introducing presentation a V and an N model were presented which contained the product lifecycle in a structured way These helped analyzing the possibilities of re use of a product or separated parts Within the module a P1130 CRT monitor from Dell was analyzed Pictures were taken from the monitor to analyze it and step by step it was taken apart and photographed for further
7. Part 5 Button s circuit board PC ABS FR 40 2 screw 2 snap fit the edge is too long PC ABS FR 40 Snap fits and one screw rubber for the adherence One snap with the Foot holder part PC ABS FR 40 5 screw and 1 snap fit PC ABS FR 40 o Glued blocks from Board is printing Soldering 3 screws pin connectors Polyester with different layers some added materials tin metal different plastics Buttons Placed 10 Difficult to disassembly from the front panel because the edges long holes for saving materials connection holes A big snap that connected with the foot Saving material with the holes Different tangible surfaces glued plastics for the smooth turning Power button with snap fit and the other buttons just put in between the panel and the circuit board Holes for logo 2 screws for the shell part and 3 screws with the button s circuit board physical connection with the buttons Front panel and circuit board elements Power button Front panel with snap and with the spring Light connector Logo a E casing top hi 2 bottom Power button Connection between the front panel and LED 4 screw for the circuit board snap fit with the bottom part Lubricant for connect with the board s metal part Cutting folding 3 screw snap fit With the top part and with the board 11 elements Part 13 Connector circuit boar
8. age required Power consumption Zero power consumption in OFF mode can only be achieved by disconnecting the power cable from the monitor Other information Certifications Control functions On screen display languages OS compatibility Release date Price new Company warranty Current second hand prices Non interlaced 1600 x 1200 or 2048 x 1536 unsupported 170Hz x 130KHz Aperture Grill P22 Dual VGA HD 15 RGB 1 x display 15 pin D Sub 100 to 240 VAC 50 or 60 Hz 3 Hz Power supply integrated 100 to 240 VAC 135 Watt 3 Watt standby CE DHHs Energy Star FCC Class B PTB TCO 95 TUV GS cUL Nemko Semko Demko Fimko Gost R PCBC BSMI and PSB Brightness contrast H V position H V size rotation convergence degauss pincushion Reystone correction and pin balance supported are English German French Italian Swedish Russian Spanish Dutch and Japanese Windows and Mac 4 September 2001 US 445 515 00 3 years US 20 70 Economic evaluation Market entry The Dell P1130 was brought onto the market as a capable high end powerful and competitively priced monitor Comparable monitors were often of lesser quality or more expensive Targeted users are professionals demanding home users and gamers Especially the high resolution and high refresh rate appealed to these groups The Dell P1130 is actually a Sony product in despite of the Dell logo on the front Logos o
9. an a decent LCD monitor Although many people and companies switched to flat screens the P1130 was able to survive this LCD invasion and started a second life as high performance low budget screen It still far outperformed LCD monitors regarding image quality and refresh rate which makes it attractive to gamers and people working with graphical or video applications Also it became available second hand for very acceptable prices often below 50 Economical recommendations As described above we believe the Dell P1130 did very well on the market It is therefore difficult to find points for improvement Looking at its economical environment it might even have gotten away with a slightly higher price increasing the profit for Dell But this is difficult to say without actual selling rates Regarding the release date Dell could have tried to enter the market earlier It can be assumed HP already took a significant part of the market when they released their monitor leaving less for Dell On the other hand it can also be assumed Dell was able to profit from HP s development process as they used the same hardware through Sony reducing costs for the development of their monitor and thus being able to sell the monitor for a lower price Why Sony released their monitor for a higher price one year after Dell can only be guessed at Monitor disassembly Img 3 Dell p1130 monitor disassembly Technical description elements i L
10. art 22 Part 23 Inside shell Relations Manufacturing Steel and PC and some wires Steel and PC is glued together screwed to the wires and back part of the main board casing Stamping and 2 screw and glue molding Placed in the plastic case Soldering pin connector Board is printing winding the coil Polyester with different layers some added materials tin metals like copper different plastics PPE PS FR 40 Connected with coiled circuit board and the main front panel Snap fits Connected to the main circuit board Board is printing Soldering and pin connectors Polyester with different layers some added materials tin metals like steel different plastics Connected with the main board casing and the screen shell Folding 8 screws snap fits stamping riveting 13 Name of Description elements Part 24 Corner parts Steel I Part 26 Glass steel Polyester vvith Part 27 Screen different layers some added materials tin metals like steel different plastics phosphor gas MN main board casing and the screen shell Folding Snap fits 4 screws riveting It s connected with inside shell and with the corner Snap fits with the wire holders Glued with the transparent ending part Connected with the screen shell 4 screws soldering glued ceramic Glass blowing folding Board is printing ceramic Point w
11. ctively reduced by LCD screens appearing on the market But as the monitor found a second life as high performance home owner monitor its production time could have been prolonged if it was adapted for and marketed towards this specific user group 24 General conclusions The Dell p1130 monitor we analyzed isn t new but it clearly is of good quality It doesn t meet today s technology standards but still people want to buy this monitor second hand due to its excellent performance The monitor contains too many parts and uses a lot of energy compared to current day LCD screens In terms of design for excellence many aspects are well developed though like the snap fits for assembly This explains the fact that the technical lifecycle appears to be longer than the economical lifecycle When the monitor was launched it was considered a high end monitor expensive but worth its value It had direct competitors from other companies who had more features but also a higher price As a result the Dell 1130 was sold more than its competitors The technological analysis shows some minor flaws in the internal design that could be corrected to improve the technological lifecycle Discussions during the analysis mainly questioned the reasons why these mistakes weren t corrected by the manufacturer at that time It has become clear that most of the parts rely to the typical quality standards of that time Based on what we could analyze in the
12. d Polyester with Board is printing Soldering pin General board not _ different layers connectors male used holes rl some added female holes for the Metal part connected je materials tin screw screwed with the box E metal different electronics Dik plastics Part 14 Polyester with Board is Soldering pin Screwed to the plastic different layers printing connectors male frame LL se some added extruded and female holes for the jm E y materials tin blended screw screwed w ET a metals like aluminum electronics e er copper lubricant separated circuit u aluminum glass between boards internal and ls different aluminum external switches paa plastics elements wires power transformer 8 screws Part 15 Plastic frame 8 Screws and snap With the main board a fitted and main board casing at el I Part 16 Main board casing Stamping 8 screw and snap Connected with the SER folding fitting and plastic frame and with E CM protection rubber the inside shell it red di connected with the e gl PESA case corners Part 17 Stamping 4 screws It screwed to the main folding riveting board casing part it css os RR N holds some boards Part 18 Cutting folding holes for screws snap Screwed to the main fits part Hole for the power connection and A screwed in 12 elements Power connection Coiled circuit board Part 20 Coiled circuit board s plastic case Part 21 P
13. e most attention to improving the environmental footprint should be on this part LCD monitors are much better in this perspective and it s clear that there s a tradeoff between environmental friendliness and performance An improvement for the monitor could be increasing its modularity Especially the electronic components could be more fitted through connectors to increase the ease of disassembly and enable reuse of modules This would still be cost ineffective when talking about collecting testing repairing and re distributing monitors from a single location but for companies using large numbers of these monitors and employing an in house repairman it could reduce costs overall There are different kinds of plastics used in the electronic components that are not easy to disassemble It would be easier to use the same plastic for electronic components or making them easier to disassemble through easier snap fits or screws A real improvement for the environment would be to avoid heating in the manufacturing process but this seems not possible with the used materials and shapes for mass production Such a change needs to be made in the design process Some recommendations mentioned on the technical level also improve the environmental impact because the lifecycle will be extended The economical lifecycle is longer than the technical lifecycle so extending it is useful The time this product could be profitably produced and sold was effe
14. elded steel Glued to the screen 14 elements g Part 28 Power supply board Polyester with Board is Soldering snap fit with Connected with the different layers printing the power supply end of the screen p a some added molding connection wires pin materials tin connectors i metals like iron E steel different Y plastics Part 29 Magnetic fields generator Polyester with Board is Winding sobering Connection with snap circuit board different layers printing snap fits fit to the generator 0 AA ke some added molding Pin connectors connected with the ie ETA B materials tin main board ZAS 5 metals like steel f r BR different gt e plastics Part 30 Iron PC ABS Molding Glue and snap fits Connection with the a 1 copper winding magnetic fields board a and the screen vvith F glue E glued to the rubber g elements Part 31 Rubber elements Extrusion and Glued to the generator cutting Casing for generator PPE PS Fr 40 Snap fitted Connected with the generator 15 elements g Part 33 Polyester with Molding Soldering glued and Connected with the l different layers winding snap fitted generator some added materials tin metals like steel different plastics PS copper iron Part 34 PPE PS PP PE Extrusion Placed and snap fitted Connected with the cutting generator 7 de Part 35 Steel rings NS steel Folding screwed Comnec
15. ety of the product for maintenance The inner shell and screen cover have burning stains on the inside This indicates the places where heat accumulated so therefore the shells are not made of plastic Regular problems The most occurring problems with this monitor are comparable to any other monitor Certain blind spots will appear and even some remarks were made about dead pixels which we personally doubt within a CRT monitor but comparable bad spots within the display can become visible because of the long stretched life of the product The monitors are often re used by gamers because of their exceptional display quality and therefore also critically assessed on the bad spots within the screen Another often occurring remark which is made is about the lines in the screen which are characteristics of the Trinitron screens Some people get really harassed by it while others claim to not even recognize the lines any more after a while These lines are actually not a technical problem but more a characteristic of the used technology and therefore not really a problem as much as a conscious design decision 19 Technical recommendations First of all our conclusion was that this product could be made with fewer parts For example the coiled circuit board could be changed to directly fit to the Aluminum case or the holder is part of the aluminum case In general the tradeoff with reducing the amount of parts is that the manufacturability decrease
16. ier recyclable The use of copolymer plastics in the outside parts is more difficult to reuse because the different polymers react different on re melting so the internal structure will change There are no composite metals used in the monitor so they re easy to recycle The metal will keep its properties after the recycling process Some metal pieces aren t easy to disassemble but they can be separated through heating as mentioned before To get the same properties of the glass that is initially used it needs to be heated to high temperatures So reusing the glass takes much energy and might be interesting for a specialized glass recycling company The screen part of the tube is of high quality and can therefore be recycled for other glass applications The cone part is made of lower glass quality and can only be used for low end ceramic purposes 22 Economical environmental evaluation Energy consumption On the economic side these monitors are not very efficient with power especially compared to LCD monitors As monitors like the Dell p1130 are now most popular with people who demand much from their computer systems and are therefore probably also regular users we can assume their systems are on most of the time Taking an average of 8 working hours per day this monitor consumes 135 Watt x 8 hours x 365 days 39 4 RWh per year A comparable LCD screen would do 50 watt x 8 hours x 365 days 14 6 RWh per year This might be an argumen
17. n the inner components reveal Sony has manufactured the monitor This was never hidden in fact it was even promoted that the screen is a Sony Trinitron as these were well known as high quality screens The combination of quality performance reliability and price was the Dell P1130 s main selling argument It was not the best of all available monitors there were some issues with the image quality One of the tradeoffs for the quality of the monitor was two thin lines appearing on the screen These are not malfunctions but shadows from the damper wires used to stabilize the aperture grille which is the essential element for producing the bright detailed picture of a Trinitron tube According to all reviews we found these wires are not disturbing and most people are used to them in 15 minutes Competition Interesting to note about the competition of this monitor is that two of the competitors are actually almost the same product The HP P1130 and Sony CPD G520 These make use of the same screen and perhaps more parts and have the same capabilities The Sony CDP G520 had more features such as an easier user interface trough a reported comfortable flip switch on the front of the monitor and a build in 4 port USB hub but it was also more expensive The Sony monitor was priced about 800 1540 new the HP monitor was 700 1300 while the Dell was sold new for only 500 800 Also regarding other monitors the Dell P1130 was competitively priced
18. n copolymers suggests that Recycling plastic tends to reduce the material properties so polymers are combined to improve the properties again The glass used for the screen part of the tube is probably made of new material because the quality of the glass influences the quality of the image It s not likely recycled glass which might not be completely clear anymore was selected For the cone part the quality of the glass is less important so it can be made of recycled glass During manufacturing Many different manufacturing processes are involved in the production of the monitor as described in the technological evaluation Most plastic parts are molded This takes much energy for generating pressure heating and cooling Some parts have rather difficult shapes and therefore need many molds The fact that every part in the monitor has a different shape also increases the amount of molds needed The manufacturing process itself is material efficient though Almost no rest material is left of the product material All metal casing material is folded The folding itself doesn t require much energy but the problem comes with pre working the material First it needs to be extruded into sheets and then cut into the right dimensions Cutting the material leaves some rest material that can be reused in the extrusion process Some plastic and metal parts are stamped into a certain pattern This consumes energy for generating pressure heat and co
19. ng the tape 7 Disassembled parts are made of PC ABS 7 disassembled parts are made of aluminum only 5 are made out of steel and 6 disassembled single material parts are made from a different kind of plastic 10 Disassembled elements contained many materials So the majority of material can be easily separated 17 Parts were molded 5 parts were stamped 10 parts were folded and 6 parts were cut So the manufacturing of a single monitor isn t cheap Molding is expensive but for a large production line it becomes more affordable 23 Parts were in some way assembled through snap fitting 17 Parts were assembled through screws There were 6 glued parts and 6 parts connected through pin connectors The whole screen contained 8 different types of screws all with Phillips head No plastic parts were glued together only plastic with another type of material Particular difficulties in the disassembly were in the connection between the outer shell and front panel The parts that have winded copper areas are difficult to disassemble and dismantle because the copper wires connected different parts on many different places The connectors between the electronic parts are all different to prevent from wrong connections in a physical way The wires all have different colors and are therefore easy to recognize The connection between the foot holder and foot was interestingly snap fitted All edges inside the monitor are rounded off This improves the saf
20. ny monitors have to be repaired So reducing this time is important to consider and probably easy to improve in the design process The plastics used aren t the cheapest available they are copolymer and probably could have been made of simpler material like PE or PP This would change the appearance though and might also reduce the reliability of the product but this is a tradeoff with the price of the material So for the outside it would change the aesthetics too much but some inner parts could have been produced of a cheaper plastic 20 Technological environmental evaluation Introduction The environmental evaluation on the technological level is described here in chronological order starting with gaining the raw materials continuing with the manufacturing of the screen and ending with the disposal of the monitor Raw materials 70 Percent of the iron and steel currently produced in the United States is made from scrap material Metals are the most profitably recycled materials Aluminum recycling even being 95 more cost efficient than producing and processing it from raw ore So the steel copper iron and aluminum inside the monitor is likely to come from recycling as well at least partially The quality of metal stays approximately the same after recycling so there s no need for new material for quality reasons The plastic parts are also likely to be produced from recycled material The fact that many parts contai
21. oling The process itself doesn t leave rest material but as with folding pre working the material does result in rest material The circuit boards are etched This is normally done chemically which increases the environmental footprint The used acid pollutes water and ground Soldering the electronic components requires a mixture of tin and lead Lead is most polluting and should therefore be reduced in the mixture Another problem with soldering is the fact that disassembly is almost impossible 21 The glass for the tube is blown This process requires extreme heat which is very energy consuming Furthermore there are no aspects to it that affect the environmental footprint During the distribution and sale The size and weight of the monitor clearly increases the environmental footprint The monitor is heavy and takes much energy for transportation The large size results in large packaging and uses much space During the use There has been put some effort in reducing the electricity consumption of the monitor because it has the Energy Star certificate But compared to LCD monitors that use approximately 50 Watt as against 135 Watt the energy consumption is still high If the monitor is malfunctioning the user has to send the monitor to service There s no possibility of repairing the monitor at home unless a user s extremely technical and is willing to lose guarantee So distribution is needed and more energy is consumed Dis
22. posal after product s useful life If the monitor is really at the end of his life it can t be totally reused anymore So on the system level referring to the N model reuse is impossible It is possible to reuse certain modules though like the casings and some electronic modules They can be used for the reparation of similar monitor models increasing the monitor s lifecycle indirectly Replacing the main circuit board is probably not economical but replacing the smaller circuit boards or for example the outer shell might be useful Certain components are also useful to replace although soldered parts aren t available for reuse Wires are easily reusable as well as the screws and cable holders When comparing the different parts of the monitor the weight of the tube is significantly higher than the rest of the parts It s most difficult to separate into single material parts although it contains many different materials Breaking the glass seems to be the best method to get rid of the vacuum but this is a rather uncontrolled activity The material might be possible to separate through heating depending on the different melting points Some plastic parts are only snap fitted to metal for assembly and impossible to disassemble just as glued parts This means that separating the plastic from the metal can only be done through cutting or melting which is rather inefficient Most plastic parts can be separated though and are therefore eas
23. s But the amount of different screw types is large and could definitely be reduced There are just small differences in the smaller screws so they could have been replaced by one type of screw also reducing the different hole sizes which simplifies the manufacturability as well The fact that the head types are the same is good though The burning stains on the monitor inner shell show possible weak spots inside This could be analyzed by the manufacturer and used to improve the product line Electric circuits are vulnerable for heat so heat reduction or better distribution will significantly improve the reliability of the monitor The rounded edges on the inner parts make the monitor safer to maintain but the screws weren t well covered So the screws should ve been trimmed or the shells had to contain longer holes and cover the screws to increase safety and prevent a maintenance worker to scratch himself The main circuit board isn t modular at all and therefore separate parts can t be replaced easily The power transformer could have a modular fixing system for example This would increase the serviceability of the electric circuit which is now likely to be disposed if one component malfunctions The size of the edges on the outer shell that connects with the front panel should be resized to improve disassembly of the outer casing Now it took some minutes to remove the outer casing which is valuable maintenance time and money if ma
24. t for those caring much for the environment yet regarding costs it is not really significant With the current Dutch prices for electricity about 10 20 Eurocent per kWh the CRT monitor would cost about 2 50 Euros extra per year Recycling The Dell P1130 is a CRT monitor and although it is quite possible to disassemble it this cannot be done without manual labor The most expensive parts of the monitor are the screen and electronic parts but these are both unsuitable for recycling as a whole as the quality cannot be relied on or easily checked So as the recyclable modules parts and materials inside are neither suitable for reuse nor expensive and in large enough quantity recycling the monitor actually costs more than it yields For reasons of environmental protection it should be recycled anyhow but it is economically unprofitable Re use Taking the above comments in regard it becomes clear that the product s end of life processing is not profitable But when looking at the product lifecycle N model figure 1 it becomes clear that the monitor is actually being re used as a whole system Although it might be outdated for a large part of the market most of the P1130 monitors found a second life in the hands of home users who prefer a quality image and low pricing over aesthetics Fig 1 product lifecycle N model 23 Environmental recommendations The main environmental problem of the monitor is the screen Therefor
25. ted with the cutting generator Part 36 Wires 5 groups Plastic steel iron extrusion Soldered snap fit 16 Connecting different gt different connections parts f a 7 4 es N gt f Part 37 Thick Isolated wires 4 groups Plastic copper extrusion Soldered snap fitted Connected to screen shell Snap fitted Snap fits with the wires and the holes in the screen shell Name of Description elements a screwed In a lot of parts Part 39 Plastic main board parts PC FR 40 Snap fitted and placed Placed and snap fitted on the aluminum parts of the main board I i u Table 1 Part analysis from a Dell p1130 monitor 17 Technical evaluation After disassembly 35 parts where separated without breaking them All electronic modules are difficult to disassemble into parts Some modularity was build in but not for disassembly into components The circuit boards consist of many different materials and therefore would be useful to disassemble further The electric circuit appeared to be well grounded to prevent users from getting a shock when opening the outer shell This is probably regulated and something the manufacturer has to take care of by law Older electric products might not have been equipped with such grounding wires Mainly the magnetic field generator contains expensive metals like copper and iron The big periphery wires also contain a lot of copper and are taped together The copper can be separated by dissolvi
26. ttp www tomshardware com reviews comparison 497 18 html 26 Online forum discussions Extremetech com http discuss extremetech com forums thread 1004417546 aspx Anandtech com http forums anandtech com messageview aspx catid 31 amp threadid 2143257 Hardforum com http hardforum com showthread php s a06d4039abO0eldd40fffd560cf28eafd amp t 104 9924 Atomicmpc com au http archive atomicmpc com au forums asp s 2 amp c 26 amp t 281 Extremeoverclocking com http forums extremeoverclocking com t208665 html ubuntuforums org http ubuntuforums org showthread php t 387759 network54 com http www network54 com Forum 87612 thread 1109559823 1153878877 dell p1130 retracetlines fixya com http www fixya com support p399371 dell p1130 black 21 crt monitor forums pcworld co nz http forums pcworld co nz archive index php t 85505 html neowin net http www neowin net forum lofiversion index php t280499 html 27
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