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Table of contents for the manual
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Ser vic e Manual DPO 4000 Ser ie s Digital Phosp hor Oscilloscopes 071-1844-00 Th is d ocu men t ap plies to firmw are versio n 1.0 0 and a bove. W a rnin g Th e serv icing instru ctio ns are fo r u se by qu alified per sonne l onl y . T o avoi d per sona l i njur y , do not perfo rm any serv icin g un less yo u are qu alified to do so . Refer to a[...]
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Copyright © T ekt ronix, Inc . All rights re served. Lice nsed software products are owned by T ekt ronix or its subsidiari es or suppliers, a nd are prot ect ed by nat ional copyright laws and int ernat ional trea ty provisions. T ektroni x products are covere d by U.S. and forei gn pate nts, issued and pe nding. Inform ation i n this publi cat i[...]
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W arranty 16 T ektroni x warrants tha t the produc t will be free from defe cts in m ate rial s and workmanship for a pe riod of thre e (3) years from the date of origi nal purcha se from an authoriz ed T ektronix distri butor . If the product prove s defec tive duri ng this w a rranty peri od, T ektronix, a t its option, e ithe r w i ll repa ir th[...]
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DPO4000 S erie s S ervic e Manual i T able of Contents Gen eral S afety S umma ry iii ................................... Serv ice S afety S u mmary v .................................... Environmental Considerat ion s vii ............................... Pr eface ix ................................................... Manual Convent ions ix ........[...]
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T able of Contents ii DPO4000 S erie s S ervic e Manual List of T ables T a bl e 4 - - 1: Extern al in sp ectio n check l ist 4 - - 3 ...................... T a bl e 4 - - 2: Intern al in sp ectio n check l ist 4 - - 4 ...................... List of Figures Figure 2- - 1: DPO4000 serie s block diagram 2- - 1 .................... Figure 4- - 1: L oc[...]
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DPO4000 S erie s S ervic e Manual iii General Safety Summar y Rev iew th e follo win g safety p recauti ons t o avoi d inj ury and p revent d amage to this product or any pr oducts connec ted to it. T o avoi d poten tial h azards, use th is pr oduct only as spec ified. Only qualified personnel should perform servic e pr ocedur es. Use Proper Power [...]
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General S afety S um mary iv DPO4000 S erie s S ervic e Manual These te rms may appe ar in this manua l: W ARNING. W arning statements identify conditions or prac tices that could r esult in injury or loss of life . CAUTION. Caution stateme nts identify conditions or prac tices that could r esult in damage to this pr oduct or othe r pr operty . The[...]
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DPO4000 S erie s S ervic e Manual v Service S afety Summary Only qualifie d personnel should pe rform se rvice pr ocedure s. R ea d this Servic e Safety Summary and t he General Safety Summary before perform ing an y service proce dures. Do Not Service Alone. Do not perf orm internal se rvice or adjustme nts of this product unle ss another pe rson [...]
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Service Saf ety S ummar y vi DPO4000 S erie s S ervic e Manual[...]
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DPO4000 S erie s S ervic e Manual vii Environmental C onsiderations This section pr ovides informa tion about the envir onmental impac t of the product. Observe the f ollowing guidelines when r ecycling a n instrument or c omponent: Equipment Recycli ng. Production of this e quipment requir ed the extr action and use of na tural re sources. The e q[...]
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Environmenta l Considerations viii DPO4000 Series Service Ma nual[...]
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DPO4000 S erie s S ervic e Manual ix Preface This Service manua l provides infor mation to troubleshoot, disasse mble, and repla ce parts on the DPO4000 Series Digital Phosphor Oscilloscope s. Manual Convent ions This manual use s certa in conventions that you should be come fa miliar with befor e attempting servic e. Throughout this manua l, any r[...]
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Preface x DPO4000 S erie s S ervic e Manual[...]
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Operat ing I nfor mati on[...]
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DPO4000 S erie s S ervic e Manual 1- 1 Operating Information For informa tion on installing and oper ating your DPO4000 Series Digita l Phosphor Oscilloscope, please r efer to the DPO4000 Se ries Digital Phosphor Oscilloscope s User Manual . This manual i s available on the W eb at www . tektr onix. com.[...]
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Opera ting Informa tion 1- 2 DPO4000 S erie s S ervic e Manual[...]
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Theory of Oper ati on[...]
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DPO4000 S erie s S ervic e Manual 2- 1 Theory of Operation This chapter de scribes the ele ctrica l opera tion of the oscilloscope to the module level. Figure 2- - 1 shows the oscilloscope module inter connections. Block Di agram s Power supply Main board Front panel Input ports for application modules Attenuat or circuit Display back light inverte[...]
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Theo ry of O perati on 2- 2 DPO4000 S erie s S ervic e Manual Power Suppl y The power supply conve rts AC line voltage to +12V to powe r all inter nal circ uits. I/O Bo a rd The I/O boa rd contains USB ports, Compact Flash port, an Ethe rnet conne ctor , T ekLink, XGA V ideo, and a T rigge r Out por t. Main Boa rd The main boa rd module conta ins t[...]
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Theo ry of O perati on DPO4000 S erie s S ervic e Manual 2- 3 The proce ssor system contains a 440EP P ower PC microproce ssor that controls the entire instr ument. The processor system also conta ins FLAS H ROM, system RA M, an d int erfaces to US B p orts an d a Com pact flas h slo t. The power conve rter r ecei ves + 12V fro m th e main p ower s[...]
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Theo ry of O perati on 2- 4 DPO4000 S erie s S ervic e Manual[...]
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Adjust ment Procedur es[...]
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DPO4000 S erie s S ervic e Manual 3- 1 Adjustment Pr ocedures This chapte r contains the fa ctory adjustme nt procedur es for the DPO4000 serie s oscilloscope s. Only qualified per sonnel should perf orm adjustment pr ocedure s. Read t he Service Safe ty Summary and t he General Safety Summary before perform ing an y servi ce procedu res. NOTE . T [...]
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Adjustment Proce dures 3- 2 DPO4000 S erie s S ervic e Manual Over view of the Adjust ment Pr ocess Before pe rforming adjustme nt proce dures, you must warm up the oscilloscope at least t en min utes i n an ambi ent tem peratu re between 2 0 ° C and 30 ° C. Adju st- ments perf ormed befor e warm-up or outside this temper ature ra nge may result [...]
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Adjustment Proce dures DPO4000 S erie s S ervic e Manual 3- 3 Factor y Adjustm ent Procedur e T o perfor m the fac tory adjustment pr ocedure , do these steps: 1. Connect the oscilloscope to an AC power source . NOTE . Y ou must connect the oscillosc ope and the test equipment to the same AC power cir cuit. Connect the oscillosc ope and test instru[...]
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Adjustment Proce dures 3- 4 DPO4000 S erie s S ervic e Manual 8. Push th e Factory lower b ezel bu tton . 9. Push th e OK Do Factory Calibrat ion s ide bezel b utt on to s tart th e adjustment pr ocess. 10. Connect signals from the DC voltage source a s instructed by the oscilloscope display . After you c onnect the c orrec t signal, push the OK Do[...]
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Maint enance[...]
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DPO4000 S erie s S ervic e Manual 4- 1 Maintenance This section c ontains the infor mation neede d to do periodic a nd corre ctive maintena nce on the osc illoscope as we ll as repa ckaging instruc tions if you need to retur n the oscilloscope to T ektronix for ser vice. Prevent ing ESD Before ser vicing this product, re ad the Safety Summary and I[...]
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Maintena nce 4- 2 DPO4000 S erie s S ervic e Manual Prev enti ve main tenan ce consi sts o f visu ally i nsp ectin g and clean ing t he oscilloscope and using ge neral c are whe n operating it. How often you do ma intenance depe nds on the sever ity of the envir onment in which the oscilloscope is used. A proper time to perf orm preventive ma inten[...]
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Maintena nce DPO4000 S erie s S ervic e Manual 4- 3 CAUTION. A void the use of c hemical cle aning agents, w hich might damage the plastics used in this osc illoscope. Use only de ionized water when cleaning the menu buttons or fr ont-pane l buttons. Use a 75% isopr opyl alc ohol solution as a cleane r and rinse with deionized water . Befor e using[...]
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Maintena nce 4- 4 DPO4000 S erie s S ervic e Manual T o access t he in sid e of the o sc illoscope f or inspection a nd cleaning, re fer to the Remo val Procedu r es in this section. Inspec t the internal portions of the oscilloscope f or damage and wea r , using T able 4- - 2 as a guide . R epa ir any def ects immedia tely . If any circui t board [...]
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Maintena nce DPO4000 S erie s S ervic e Manual 4- 5 Cleaning Procedure — Interior . T o c lean the osc illoscope inter ior , do the following steps: 1. Blow off dust with dry , low-pre ssure, deionized a ir (appr oximately 9 psi). 2. Rem ove any rem aini ng du st wi th a lin t-free clot h damp ened in i sop r opyl alcohol ( 75% solution) and r in[...]
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Maintena nce 4- 6 DPO4000 S erie s S ervic e Manual Over view of Removal Pr ocedures Refer to Figures 4- - 1 and 4- - 2 for the loc ation of modules tha t you are r emoving or installing. If you are disasse mbling the instrument for clea ning, refe r to the Inspec tion and Cleaning proce dure on page 4 - - 1 for instruc tions. The Mec hanical Parts[...]
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Maintena nce DPO4000 S erie s S ervic e Manual 4- 7 Rear case Front cover Front foot Figure 4 - 1: Locator for tr im and cabinet rem oval[...]
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Maintena nce 4- 8 DPO4000 S erie s S ervic e Manual Front Panel assembly Main board I/O board assembly Side fans assembly Power supply assembly Inverter board assembly Display assembly Front Case assembly Figure 4 - 2: Locator for internal modules Removal Pr ocedures Thes e proced ures as sum e you h ave access t o th e m odule that you are re movi[...]
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Maintena nce DPO4000 S erie s S ervic e Manual 4- 9 CAUTION. T o avoid damage to the fr ont panel Standby /On sw itch asse mbly , do not set the Display module assembly on a w ork surface. Sliding the oscilloscope over the edge of the work surface could br eak off the On/Standby switch assembly . Fo llo w th ese st eps t o remo ve th e rear case. U[...]
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Maintena nce 4- 1 0 DPO4000 Series Servic e Manual Follow these steps to r emove the I /O board. Y ou need to have pre viously remove d the rea r case and powe r supply module. Use T OR X T -15 sc rewdrive r tip. S ee Figure 5- - 4 on page 5 - - 10. 1. Remove the 5 sc rews that hold the I/O boa rd to the cha ssis. 2. Lift stra ight up to remove. Fo[...]
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Maintena nce DPO4000 S erie s S ervic e Manual 4- 1 1 Follow these steps to remove the front ca se assembly . Y ou must have previously remove d the R ear Case Asse mbly . S ee Figure 5- - 2 on page 5 - - 6. 1. Pull off 14 knobs (2 la rge , 5 medium, 6 small, and 1 rotar y). 2. Remove the f ront case by pulling bac k the board sna ps and lifting th[...]
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Maintena nce 4- 1 2 DPO4000 Series Servic e Manual T roubl eshooti ng This section c ontains informa tion and proce dures to help you isola te a def ective module in a DPO4000 series oscillosc ope. W ARNING. Befor e doing this or any other pr oc edur e in this manual, r ead the General S afety S um mary and Service Saf ety S ummary found at the beg[...]
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Maintena nce DPO4000 S erie s S ervic e Manual 4- 1 3 T roubl eshooti ng Procedur e Figures 4- - 3 through 4- - 5 are trouble shooting procedur e flowcha rts. Use them to troubleshoot a n instrument fa ilure. Begin with Figure 4- - 3. NOTE . Befor e performing the tr oubleshooting pr ocedur e, r emove the instrument cabinet (se e page 4 - - 9 ). Ye[...]
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Maintena nce 4- 1 4 DPO4000 Series Servic e Manual ¯ Reconnect loose cables. ¯ Retu rn to top o f Fig ure 4 - - 3. No Ye s Are there +12 volts on the connector pins ? ¯ Measure for +12 V DC ( ± 0.3 V) on the connector pins. (See figure at right) !W ARNING! Be careful when measuring near the AC power supply, as there are line voltages present on[...]
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Maintena nce DPO4000 S erie s S ervic e Manual 4- 1 5 ¯ Push UTILITY . ¯ Push System t o select Self T est. ¯ Push OK Run Self T est. ¯ Determine f ailure from Self T est Results. ¯ Use table to select module t o replace. From the oscilloscope power-up diagnostics message display . Oscilloscope is operating OK. Does the power-up screen report [...]
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Maintena nce 4- 1 6 DPO4000 Series Servic e Manual Unpacking and Repacki ng Inst ruct ions This section c ontains the infor mation neede d to unpack the osc illoscope and repa ck it for shipment or storage. The oscilloscope a nd its standard accessori es are careful ly p acked at t he facto ry in a shipping ca rton. If, upon r eceipt, damag e to th[...]
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Mechanical Par ts List[...]
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DPO4000 S erie s S ervic e Manual 5- 1 Mechanical Parts List Thi s chap ter con tain s a li st o f the rep laceabl e m odules for the DPO4000 series oscilloscope . Use this list to identify and or der re pl acemen t parts . Part s Or deri ng Inf ormat ion Rep lacemen t part s are avai labl e thr ough your local T ektronix f ield of fice or represen[...]
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Mechan ical P arts Li st 5- 2 DPO4000 S erie s S ervic e Manual Modules ca n be servic ed by selec ting one of the f ollowing three options. Contact your local T ektronix ser vice cente r or repre sentative for r epair assista nce. Module Exchange. In some ca ses you may excha nge your module for a rema n- ufac tured module. These modules c ost sig[...]
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Mechan ical P arts Li st DPO4000 S erie s S ervic e Manual 5- 3 The table titled Ma nufactur ers Cross Inde x shows codes, names, and a ddresses of manuf acture rs or vendor s of components liste d in the parts list. Manufacturer s cross index Mfr . code Manufacturer Addr ess C ity , sta te, zi p code 06383 P ANDUIT CO RP 17303 RID GELAND AVE TIN L[...]
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Mechan ical P arts Li st 5- 4 DPO4000 S erie s S ervic e Manual Figures 5- - 1 through 5- - 5 on the following pa ges show the module- level exploded views of the DPO4000 series oscillosc ope. The adj acent pag e is t he li st of compone nts for that e xploded view , indexed by the numbe rs in the figur e. 1 2 3 4 4 5 Figure 5 - 1: Exploded view , [...]
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Mechan ical P arts Li st DPO4000 S erie s S ervic e Manual 5- 5 Replaceable Parts List Fig. & inde x number T ektron ix part number Serial no. effective Serial no. dis cont’ d Qty Name & description Mfr. code M fr . par t num ber 5- - 1 Ca se - - 1 200 - - 4908- - 00 1 COVER, F RONT , PROT ECTI VE TK6710 200- - 4908 - - 00 - - 2 202 - - 0[...]
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Mechan ical P arts Li st 5- 6 DPO4000 S erie s S ervic e Manual 1 2 3 4 5 6 7 Flex Circuit J13 13 8 9 10 11 12 13 14 15 16 17 18 19 20 Figure 5 - 2: Exploded view: fr ont panel and displ ay , 4-channel instrum ents[...]
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Mechan ical P arts Li st DPO4000 S erie s S ervic e Manual 5- 7 Replaceable Parts List Fig. & inde x number T ektron ix part number Serial no. effective Serial no. dis cont’ d Qty Name & description Mfr. code M fr . par t num ber 5- - 2 Front Panel - - 1 202 - - 0432- - 00 1 FRON T CASE ASSEM BL Y 80009 202- - 0432 - - 00 - - 2 335 - - 1 [...]
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Mechan ical P arts Li st 5- 8 DPO4000 S erie s S ervic e Manual 1 2 3 4 5 6 7 Figure 5 - 3: Exploded view: front panel 2-channel instrum ents[...]
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Mechan ical P arts Li st DPO4000 S erie s S ervic e Manual 5- 9 Replaceable Parts List Fig. & inde x number T ektron ix part number Serial no. effective Serial no. dis cont’ d Qty Name & description Mfr. code M fr . par t num ber 5- - 3 Front Panel - - 1 335 - - 1 189- - 00 1 LABEL. FRON T P ANEL, MOD EL DPO4032 80009 335- - 11 89 - - 00 [...]
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Mechan ical P arts Li st 5- 1 0 DPO4000 Series Servic e Manual Main board I/O board assemly Main board J310 J780 J850 1 2 3 4 5 6 7 8 9 10 2 2 2 Figure 5 - 4: Exploded view: power suppl y and I/O board[...]
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Mechan ical P arts Li st DPO4000 S erie s S ervic e Manual 5- 1 1 Replaceable Parts List Fig. & inde x number T ektron ix part number Serial no. effective Serial no. dis cont’ d Qty Name & description Mfr. code M fr . par t num ber 5- - 4 Main Board - - 1 407 - - 5019- - 00 1 BRACKET ; POWER SUPPLY COVER TK6709 407- - 5019 - - 00 - - 2 21[...]
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Mechan ical P arts Li st 5- 1 2 DPO4000 Series Servic e Manual I/O board assemly Main board J610 Display assembly to Invert er board assembly Main board Inverter board assembly Main board CN2 CN1 J930 J571 J570 1 2 3 4 5 6 7 8 9 Figure 5 - 5: Exploded view: mainboard, i nver ter boar d, and si de f ans[...]
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Mechan ical P arts Li st DPO4000 S erie s S ervic e Manual 5- 1 3 Replaceable Parts List Fig. & inde x number T ektron ix part number Serial no. effective Serial no. dis cont’ d Qty Name & description Mfr. code M fr . par t num ber 5- - 5 Main Board - - 1 650 - - 4937- - 00 1 FAN TRAY ASSEMBL Y 80009 650- - 4937 - - 00 - - 2 1 19 - - 6806[...]
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Mechan ical P arts Li st 5- 1 4 DPO4000 Series Servic e Manual Replaceable Parts List Fig. & inde x number T ektron ix part num ber Serial no. effective Serial no. dis cont’ d Qty Name & description Mfr. code M fr . par t num ber ST ANDARD ACC ESSORIES -- -- -- A c c e s s o r i e s 161- - 0104 - - 05 1 CA ASSY ,PWR: 3,1.0M M SQ,250V/ 10A[...]
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Index[...]
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DPO4000 S erie s S ervic e Manual Index - 1 Index A acquis ition s ys tem, descr iption, 2- - 2 adjustm ent proce dure, 3 - - 2 factor y , 3 - - 3 adjus tments , 3 - - 1 appli cat ion modul es, ix C cabinet, 4- - 7 calibratio n due date, 3- - 1 calibratio n sw itch, 3 - - 3 circ uit descri ption, 2 - - 1–2 - - 4 cleaning , 4- - 5 cleaning an d in[...]
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Index Index - 2 DPO4000 Series Servic e Manual R rear cas e removal, 4- - 9 remova l procedure s, 4- - 6, 4 - - 8 display m odule, 4- - 1 1 fans, 4- - 10 fro nt case, 4- - 10 front panel , 4- - 1 1 I/O board, 4- - 10 invert er board, 4- - 10 mai n board, 4 - - 10 power supply , 4- - 9 rear cas e, 4 - - 9 replaceab le part, def inition, ix T trigge [...]