PCB kev luam kuj tseem hu ua PCB kev luam, PCB cloning, luam PCB, PCB cloning, PCB thim rov qab tsim lossis PCB thim rov qab txhim kho. That is, on the premise of having physical electronic products and circuit boards, reverse analysis of circuit boards is carried out by means of reverse research and development technology, and technical documents such as PCB files, BOM files, schematic diagram files and PCB silkscreen production files of original products are carried out 1: 1, thiab tom qab ntawd siv cov ntaub ntawv thev naus laus zis no thiab cov ntaub ntawv tsim khoom rau PCB pawg thawj coj ua, kev sib txuas ua ke, kev ntsuas koob ya, kev daws teeb meem hauv Circuit Court, ua tiav thawj daim qauv ntawm pawg thawj coj saib daim qauv.

Txog PCB luam tawm pawg thawj coj, ntau tus neeg tsis nkag siab, PCB yog pawg tswj hwm daim ntawv, qee tus neeg txawm xav tias PCB daim ntawv theej yog daim ntawv theej. Hauv txhua tus neeg txoj kev nkag siab, shanzhai txhais tau tias yog kev ua, tab sis PCB kev luam yog qhov tseeb tsis yog kev coj ua. Lub hom phiaj ntawm kev luam PCB yog kawm paub qhov txawv teb chaws hluav taws xob tsim hluav taws xob tshiab tshaj plaws, thiab tom qab ntawd nqus cov txheej txheem tsim tau zoo, thiab tom qab ntawd siv lawv los tsim thiab tsim cov khoom lag luam zoo dua.

With the continuous development and deepening of the board copying industry, today’s PCB board copying concept has been extended in a wider range, no longer limited to simple circuit board copying and cloning, but also involves the secondary development of products and the research and development of new products. , piv txwv li, los ntawm kev tshuaj xyuas ob qho ntawm cov khoom lag luam cov ntaub ntawv, tsim kev xav, qauv yam ntxwv thiab thev naus laus zis ntawm kev nkag siab thiab sib tham, tuaj yeem muab qhov kev txheeb xyuas qhov ua tau zoo rau kev tshawb fawb thiab txhim kho cov khoom tshiab thiab cov ntaub ntawv sib tw, los pab tshawb fawb thiab tsim chav nyob raws sijhawm raws txoj kev txhim kho thev naus laus zis tshiab kawg, hloov kho lub sijhawm kom txhim kho cov khoom tsim, tshawb fawb thiab txhim kho feem ntau muaj kev lag luam sib tw cov khoom tshiab.

Cov txheej txheem ntawm PCB pawg thawj coj tuaj yeem paub qhov hloov pauv sai, hloov kho thiab txhim kho theem ob ntawm ntau hom khoom siv hluav taws xob los ntawm kev rho tawm thiab hloov kho ib nrab ntawm cov ntaub ntawv cov ntaub ntawv. Raws li daim ntawv kos duab thiab cov duab kos tau muab rho tawm los ntawm PCB kev luam, cov kws tshaj lij tuaj yeem tsim kho qhov tsim thiab hloov PCB raws li tus neeg siv khoom xav tau. Hauv lub hauv paus no, nws tseem tuaj yeem ntxiv cov haujlwm tshiab rau cov khoom lag luam lossis rov tsim kho cov yam ntxwv ua haujlwm, yog li cov khoom lag luam nrog lub luag haujlwm tshiab yuav tshwm sim sai tshaj plaws thiab lub cev tshiab, tsis tsuas yog muaj nws tus kheej txoj cai cuab yeej cuab tam, tab sis kuj yeej thawj lub sijhawm hauv kev ua lag luam, nqa cov txiaj ntsig ob npaug rau cov neeg siv khoom.

Txawm hais tias nws tau siv los tshuaj xyuas lub hauv paus ntsiab lus ntawm pawg thawj coj saib khoom thiab cov yam ntxwv ua haujlwm hauv kev tshawb fawb thim rov qab, lossis siv los ua lub hauv paus ntawm PCB tsim hauv kev tsim tom ntej, PCB cov phiaj xwm muaj lub luag haujlwm tshwj xeeb. Yog li, raws li daim ntawv lossis khoom, yuav ua li cas thiaj ua tau daim duab PCB cov duab rov qab, txheej txheem rov qab yog dab tsi? Cov ncauj lus kom ntxaws yog dab tsi?

I. Cov kauj ruam rov qab:

1. Record PCB details

Tau txais PCB, ua ntej ntawm daim ntawv kom sau tag nrho cov khoom siv ntawm tus qauv, ntsuas, thiab qhov chaw, tshwj xeeb tshaj yog cov diode, kev taw qhia ntawm peb theem raj, IC thais taw qhia. Nws yog qhov zoo tshaj los nqa ob daim duab ntawm qhov chaw ntawm cov khoom siv nrog lub koob yees duab digital. Ntau ntawm PCB cov laug cam ua tau zoo dua saum toj no diode triode qee qhov tsis ua tib zoo saib yooj yim.

2. Scanned images

Tshem tag nrho cov khoom thiab tshem cov tin los ntawm PAD qhov. Ntxuav PCB nrog cawv thiab muab tso rau hauv lub tshuab luam ntawv uas ntsuas ntawm qhov siab me ntsis pixels kom tau txais cov duab zoo dua. Tom qab ntawd, txhuam cov txheej saum toj thiab hauv qab maj mam maj mam nrog cov ntawv xov dej kom txog thaum zaj duab xis tooj liab ci. Muab lawv tso rau hauv lub tshuab luam ntawv, pib PHOTOSHOP, thiab txhuam ob txheej sib cais ua xim. Note that PCB must be placed horizontally and vertically in the scanner, otherwise the scanned image can not be used.

3. Adjust and correct the image

Kho qhov sib piv thiab qhov ci ntawm daim ntaub, kom ib feem nrog cov yeeb yaj kiab tooj liab thiab ib feem uas tsis muaj tooj liab zaj duab xis sib zog, tom qab ntawd tig kab lus rau dub thiab dawb, xyuas seb kab ntawv puas tseeb, yog tias tsis yog, rov ua cov kauj ruam no. Yog tias pom tseeb, daim duab yuav raug khaws ua xim dub thiab dawb BMP hom ntawv TOP BMP thiab BOT BMP, yog tias daim duab pom muaj teeb meem kuj tseem tuaj yeem kho thiab kho nrog PHOTOSHOP.

4. Txheeb xyuas PAD thiab VIA txoj haujlwm tsis xwm yeem

Hloov ob daim ntawv BMP rau hauv PROTEL cov ntaub ntawv feem, thiab hloov ob txheej mus rau hauv PROTEL. Piv txwv li, txoj haujlwm ntawm PAD thiab VIA tom qab ob txheej txheej pib ua ke, qhia tias cov kauj ruam dhau los tau ua tiav zoo. Yog tias muaj qhov txawv txav, rov ua cov kauj ruam thib peb. Yog li ntawd, PCB daim ntawv theej yog qhov ua haujlwm tau zoo heev, vim tias teeb meem me me yuav cuam tshuam rau qhov ua tau zoo thiab qib sib xws tom qab pawg thawj coj theej.

5. Draw the layer

Convert TOP layer BMP to TOP PCB, make sure to convert SILK layer, the yellow layer, then you trace the line on TOP layer, and place the device according to the drawing in step 2. Rho tawm SILK txheej tom qab pleev xim. Repeat until you have drawn all the layers.

6. Ua ke ntawm TOP PCB thiab BOT PCB

Add TOP PCB and BOT PCB in PROTEL and combine them into one figure.

7. Laser luam TOP LAYER, BOTTOM LAYER

Siv lub tshuab luam ntawv laser luam tawm TOP LAYER thiab BOTTOM LAYER ntawm zaj duab xis pob tshab (1: 1 piv), muab zaj duab xis tso rau ntawm PCB thiab sib piv yog tias nws tsis raug, yog tias yog, koj ua tiav.

Kuaj 8.

Kuaj cov ntawv hluav taws xob ua tau zoo ntawm daim ntawv theej duab tsis zoo ib yam li lub rooj tsavxwm qub. If it’s the same then it’s really done.

Qhov thib ob, xyuam xim rau cov ntsiab lus

1. Tsim nyog faib thaj chaw ua haujlwm

When reverse designing the schematic diagram of an intact PCB, reasonable division of functional areas can help engineers reduce some unnecessary trouble and improve the efficiency of drawing. Generally speaking, components with the same function on a PCB board will be arranged centrally, so that the functional division of areas can provide a convenient and accurate basis for reverting the schematic diagram.

Txawm li cas los xij, kev faib ntawm thaj chaw ua haujlwm no tsis yog qhov xav tau. Nws xav kom cov kws tsim txuj ci kom nkag siab txog kev paub txog hluav taws xob hauv xov tooj cua. Ua ntej tshaj plaws, nrhiav cov khoom tseem ceeb ntawm chav ua haujlwm zoo, thiab tom qab ntawd raws li kev txuas xov txuas tuaj yeem taug qab txhawm rau nrhiav lwm cov khoom siv ntawm tib chav ua haujlwm zoo, tsim kev faib ua haujlwm. Kev tsim cov kev faib ua haujlwm yog lub hauv paus ntawm kev kos duab. Ib qho ntxiv, tsis txhob hnov ​​qab siv tus lej naj npawb ntawm lub rooj tsav xwm hauv Circuit kom pab koj faib ua haujlwm tau sai dua.

2. Nrhiav lub hauv paus haum

Cov ntawv siv no tseem tuaj yeem hais tias yog lub hauv paus tseem ceeb PCB network nroog thaum pib ntawm kev kos duab. Tom qab txiav txim siab cov ntawv siv, kos duab raws tus pin ntawm cov ntawv siv no tuaj yeem ua kom raug qhov tseeb ntawm cov duab kos rau ntau dua.

Lub rooj sib tw rau cov kws tsim khoom, paub meej tsis yog yam nyuaj, feem ntau, tuaj yeem xaiv ua lub luag haujlwm tseem ceeb hauv cov khoom siv hluav taws xob ua qhov ntsuas, lawv feem ntau loj dua, tus pin ntau dua, yooj yim teeb duab, xws li kev sib txuas ua ke, hloov pauv, transistor, thiab lwm yam ., tsim nyog raws li qhov ntsuas.

3. Txheeb cais cov kab kom raug thiab kos cov kab tsim nyog

Txog qhov sib txawv ntawm cov xov hlau hauv av, kab hluav taws xob thiab kab teeb liab, cov kws tsim khoom kuj tseem yuav tsum muaj kev paub txog cov khoom siv hluav taws xob, kev sib txuas hauv Circuit Court, PCB thaiv thiab lwm yam. Qhov sib txawv ntawm cov kab hluav taws xob no tuaj yeem tshuaj xyuas los ntawm kev sib txuas ntawm cov khoom siv, qhov dav ntawm cov ntawv ci tooj liab thiab cov yam ntxwv ntawm cov khoom siv hluav taws xob lawv tus kheej.

Hauv kev teeb tsa daim kab xev, txhawm rau zam kev hla kab thiab sib cuam tshuam, hauv av tuaj yeem siv ntau tus cim hauv av, txhua hom kab tuaj yeem siv cov xim sib txawv ntawm cov kab sib txawv kom ntseeg tau meej meej, rau txhua yam ntawm cov khoom siv kuj tseem siv tau tshwj xeeb cov paib, thiab tuaj yeem sib cais qhov teeb meem hauv chav tsev, thiab tom qab ntawd ua ke.

4. Xib fwb cov hauv paus ntsiab lus thiab xa mus rau cov duab kos zoo sib xws

Rau qee qhov yooj yim hluav taws xob hluav taws xob txheej txheem txheej txheem thiab txoj hauv kev kos duab, cov kws tsim txuj ci yuav tsum tau ua tus tswv, tsis yog tsuas yog muaj peev xwm kos qee qhov yooj yim, cov txheej txheem yooj yim ntawm cov khoom siv hluav taws xob ncaj qha, tab sis kuj tseem tsim tag nrho cov txheej txheem ntawm hluav taws xob hluav taws xob.

Ntawm qhov tod tes, tsis txhob quav ntsej tias tib yam khoom siv hluav taws xob muaj qee qhov zoo sib xws hauv daim duab qhia chaw ntawm PCB network hauv nroog, cov kws ua haujlwm tuaj yeem ua raws qhov kev paub dhau los, ua tib zoo kos cov duab zoo sib xws los ua qhov rov qab ntawm qhov tshiab khoom schematic daim duab.

5. Tshawb xyuas thiab ua kom zoo dua qub

Tom qab cov duab kos tau ua tiav, kev thim rov qab ntawm PCB daim duab kab duab tuaj yeem ua tiav tsuas yog tom qab kuaj thiab tshuaj xyuas. The nominal values of components sensitive to PCB distribution parameters need to be checked and optimized. According to the PCB file diagram, the schematic diagram is compared, analyzed and checked to ensure that the schematic diagram is completely consistent with the file diagram.