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TNG I DN TRI

TEST POINT

TN HIU TRN BOARD MCH CHNH

MB0 ni t MB1: Tn hiu ti MB1 l tn hiu khung,chu k l 125ms , c s dng ng b cho tt c cc tn hiu lin quan n vic qun l tn hiu truyn hoc knh d liu. Dng sng:

MB2: Tn hiu ti MB2 l tn hiu ting ni v knh d liu ti ng vo Dng sng:

MB3: Tn hiu ny l tn hiu ng ra, mt vi knh c hin th, ngoi ra nhng m hiu chung c s dng trong sut tn hiu bo ri, bo bn gia mt s tn hiu im

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lng . Dng sng:

MB4: Tn hiu ti MB4 l tn hiu kha ti tn s 4096Mhz, tn hiu ti u d th nht l tn hiu khung(MB1) l 5 xung clock Dng sng:

MB5: Tn hiu MB5 ch c hin th trong qu trnh khi to ca tng i sau start up,c s trao i d liu gia board SD v CPU

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dng sng

MB6: Tn hiu ti MB6 l in p ngun cung cp ti 5V ca tng i MB7: l tn hiu ng b to ra dng in gi, mt trong s nhng tn hiu thuc MB7 c m rng ti tn s 25Hz Dng sng:

Tn hiu MB7 vi tn s l 25Hz MB8: L tn hiu bo ng ni b cho vn phn cng l thng mc cao

MB9: L s trao i tn hiu d liu gia CPU v DSP Dng sng

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TN HIU TNG T: BC0 ni t BC1, BC2 : c in p ca ng tng t c kt ni ti socket BC1 Khi tng i BCA kt ni ti socket BC1 th khng lm vic ti in p 40V Dng sng

Khi thit b thu c nng in p ln 8V bn c th nhn thy tn hiu tng t ca ting ni hoc l s la chn a tn s.

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Dng sng

Khi in thoi khng lm vic n c th chuyn cuc gi bng cch s dng mt in thoi khc hay mt in thoi c bit bng vic quay s 105. in p 70V ti tn s 25Hz c t trn ngun cung cp in p 40V Dng sng cha o c v khng dng CO. BC3: L tn hiu d liu ca socket BC1 v th khng c bt c mt in thoi c bit no kt ni ti socket. Tn hin c ng b ti tn hiu khung c hin th ti BC8

Dng sng cha o c BC4: L tn hiu d liu c ly trn board ca in thoi c bit ti socket BC1. Tn hiu ca BC4 so snh vi tn hiu ti BC3

Dng sng:

BC5: Tn hiu ti BC5 biu din trng thi ca u ni cho tng i BCA ca socket

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BC1. Khi ng truyn rnh th tn hiu mc in p 5V, v bn l 0V.

BC6: L tn hiu kch hot gi dng in gi cho socket BC1, khi in thoi chung th tn hiu in p 2V, trng hp khc 0V. Dng sng:

BC7: L ng ra ca tn hiu ting ni ti socket BC1. Tn hiu ch c a ra khi dch

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v tng t c kt ni. Dng sng:

BC8: L tn hiu khung ca knh PCM. Dng sng: BC9: L tn hiu PCM trong upload Dng sng:

SECTION BCA2 V BCA3 T BC0 n BC7 ca BCA2 v BCA3 tng t nh trn BCA2

BC8: in p ngun ca relay d tr c s dng kt ni ng trung k vi hai in thoi u tin khi m PBX mc nng lng thp.

BC9: L tn hiu iu khin cho relay d tr Dng sng:

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BCA3 BC8: D liu ng ra ti IOM2.IOM2 l chun thng tin gia thit b thng minh dnh cho chip vin thng bi Siemens. Dng sng:

BC9: Tn hiu c th ly ra ti IOM2. Dng sng:

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CC DNG LI: Li 1: ng dy CO1 th b ngt trn kt ni ti chn CO1. Khi in p gia CO1 v CO2 l 40V thay v 8V.

Li 2: Ti khe cm BC1, trong b BCA1, th b ngt kt ni ti BC3. in thoi s 101 khng lm vic, ch c in thoi tng t 105 l lm vic. Li 3: Tn hiu BC6 ca b BCA3 b ngn mch ti t. in thoi tng t, c kt ni ti khe cm BC5, khng chung khi c cuc gi. Li 4: Tn hiu BC6 ca b BCA2 b ngn mch ti t. in thoi tng t, c kt ni ti khe cm BC3, khng chung khi c cuc gi. Li 5: Socket BC3 ca b BCA2,b ngt ng dy ti khe cm BC2. in p gia BC1 v BC2 l 0V thay v 40V Li 6: Ti khe cm BC3, trong b BCA2 b ngt kt ni ti BC3. in thoi s 102 khng lm vic, ch c in thoi tng t 106 l c th lm vic. Li 7: Tn hiu BC5 ca b BCA1b ngn mch ti t. Tn hiu tng t,kt ni ti socket BC1, khng chung v my lun bn. Li 8: Tn hiu CO4 ngn mch ti t. ng trung k CO1 vn chy nu tip tc nhn c cuc gi. Li 9: : Tn hiu BC6 ca b BCA1 b ngn mch ti t. Tn hiu tng t,kt ni ti socket BC1, khng chung khi c cuc gi n. Li 10: ng dy in thoi CO1 b ngn mch. Gia CO1 v CO2 b ngn mch gia chng. in p gia CO1 v CO2 l 0V, ng dy khng hot ng . Li 11: Phn cng b li trong chc lt. Tn hiu ti MB8 xung mc thp trong mt khong thi gian ngn. Reset PBX v sau khi ng li bnh thng. Li ny ch xy ra trong vic truyn thng tin Li 12: Socket BC3, ca b BCA1, th b ngt kt ni ti BC2. in p gia BC1 v BC2 l 0V thay v 40V.

NG DNG LP TRNH CHO TNG I DN TRI

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Khi khi ng chng trnh xong,ta tin hnh cu hnh cho DHLC4

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Nhp phi DHLC4,chn port property

Ta i s 2 my 105 v 106 thnh 117 v 119 ri chn Apply(A).Sau ly 2 my

gi cho nhau vi s mi l 117 v 119.

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