廈門阿米控技術(shù)有限公司
主營產(chǎn)品: 1756-L62,140CPU11302,07KT98,IC693CPU374,3805E |
廈門阿米控技術(shù)有限公司
主營產(chǎn)品: 1756-L62,140CPU11302,07KT98,IC693CPU374,3805E |
參考價(jià) | 面議 |
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更新時(shí)間:2018-01-15 19:50:16瀏覽次數(shù):5562
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NEW LINK SYSTEMS 108837 5001 PLS LOGIC MODULE 1088375001PLS
NEW LINK SYSTEMS 108837 5001 PLS LOGIC MODULE 1088375001PLS
PLS LOGIC MODULE 1088375001PLS
PLS LOGIC MODULE 1088375001PLS
KLA-Tencor 655 650538 00 F0,VEXTA PH266-01GK,ORIENTAL MOTOR?2GK 15KA
FANUC A20B-0007-0090/08E BOARD
INDUSTRIAL SBC,PC,IPC,IN PENTIUM-4 CPU,FSB-860B BIOS COMPUTER BOARD WORKING
MDA SCIENTIFIC EXHAUST GAS MONITOR
IAI ACTUATOR CONTROLLER SCON-C-60I-NP-5-2
HP 75000 SERIES:C,E1420B 200Mhz/2ns Universal Counter
BECKHOFF MODULES BK1120 1EA WAGO 750-530?7EA
ALLEN-BRADLEY OEMAX?PLC NX70 NX70-CPU70P2 NX70-X32D NX70-Y32T
E.S.I P/N 132183 REV:J
OMRON SYSMAC CS1G PROGRAMMABLE CONTROLLER CPU44-V1 PLC SET AD002 DA002 SCU21-V1
SIEMENS SIMATIC MODULE ET 200B-32DI
PLUSTEK LED CONTROLLER PTS-D5012D-RS232
RENISHAW RCH22 Y30D16
Schneider 140CPS11100 NIB
OPTICAL LIGHT TIGHT?I/C PCB BOARD 03-17393-00
SANYO DENKI MOTOR 63BM007FXE00
YASKAWA MP930 JEPMC-IO350,JEPMC-10350 VER B0 PLC
YASKAWA SERVOPACK POWER SUPPLY JUSP-ACP07AA
MMT MICRO MOTION TECHNOLOGY X.Y.Z. STAGE?#2
MMT MICRO MOTION TECHNOLOGY STAGE M1-637-L1
PULSTEC LAND PRE-PIT?DECODER 2 (DDU-S/A)?PSB021DD-000-0 BOARD
ROCKWELL SAMSUNG MULTI AXIS CONTROLLER MAC-C0202R
MMT MICRO MOTION TECHNOLOGY X.Y.Z. STAGE?M1-630-R1 WITH A VERTICAL STAGE.
GOLDSEC PLC M2NCPU,?COMPATIBLE WITH MITSUBISHI M2NCPU
AB,ALLEN-BRADLEY PLC-5/40 1785-L40B /C,?MODULE/ WORKING
我部從年開始,分步進(jìn)行了各頻道電視發(fā)射機(jī)的全固態(tài)化更新?lián)Q代工作,經(jīng)過多年的運(yùn)行,早期引進(jìn)的全固態(tài)電視發(fā)射機(jī)已經(jīng)逐步進(jìn)人故障多發(fā)期?,F(xiàn)將其中北廣型雙通道全固態(tài)電視發(fā)射機(jī)因圖像變頻盤故障引發(fā)輸出功率降低的檢修總結(jié)如下,與廣大同行交流,僅供參考。發(fā)射機(jī)故障位置的分析與判斷我部于年引進(jìn)了一部北廣產(chǎn)通道全固態(tài)電視發(fā)射機(jī),該機(jī)用于*一套的無線轉(zhuǎn)播。該部發(fā)射機(jī)在工作過程中發(fā)生輸出功率降低的現(xiàn)象,發(fā)射機(jī)表頭輸出功率指示從正??潭忍幭陆档阶笥摇?/span>
針對(duì)發(fā)射機(jī)輸出功率的下降,我們首先對(duì)機(jī)器面板上激勵(lì)級(jí)圖像變頻器中的電位器進(jìn)行了調(diào)整,嘗試通過調(diào)節(jié)它來增大發(fā)射機(jī)的功率輸出,但發(fā)現(xiàn)此時(shí)幾乎無法增大發(fā)射機(jī)的功率輸出,即發(fā)射機(jī)此時(shí)zui大輸出功率就在W左右,功率再也上不去了。根據(jù)此現(xiàn)象,我們組織有關(guān)人員進(jìn)行了檢修。根據(jù)以往的經(jīng)驗(yàn),檢修人員首先檢查了該部發(fā)射機(jī)此時(shí)六只末級(jí)功放模塊工作電流的大小情況,通過檢查,我們發(fā)現(xiàn)伴音末級(jí)功放模塊的工作電流基本正常,而圖像推動(dòng)模塊以及四只圖像末級(jí)功放模塊的工作電流均比原始記錄要小得多,說明發(fā)射機(jī)的輸出功率確實(shí)是下降了,并且問題可能在圖像通道上。但通過對(duì)四只圖像末級(jí)功放模塊工作電流均同步下降的現(xiàn)象進(jìn)行分析說明,故障的原因可能在激勵(lì)器或圖像推動(dòng)模塊中,是由于激勵(lì)器或者圖像推動(dòng)模塊的輸出信號(hào)增益不夠,從而導(dǎo)致了發(fā)射機(jī)輸出功率的不足。
ESI CKA 73435 D ILLUMINATOR CONTROL MODULE II,PII-15298A PCB 73434 B BOARD
OMRON C500-CT012 3G2A5-CT012 COUNTER UNIT
GE FANUC IC693CPU350-CG CPU MODULE 32K USER MEMORY
MJ71UC24 COMMUNICATION MODULE COMPATIBLE WITH MITSUBISHI MJ71UC24 TESTED WORKING
TAKENAKA TAKEX WIDE SENSOR SS20-TR28 LOT OF 2
MITSUBISHI FX1N-60MT PROGRAMMABLE CONTROLLER
Mitsubishi A2USCPU CPU UNIT NNB
PULSTEC LD READ/WRITE 2 BOARD OPA-081-00
PULSTEC 4CHANNEL AGC BOARD2 PSB017DD-000-1 BOARD
CD/DCD DLV V3.0 BOARD
THK KR33 LM GUIDE ACTUATOR,KR33A LINEAR MOTION STAGE #1
RELIANCE AUTOMAX 6011 PROCESSOR MODULE 57C431,804113-R J-3650
SIEMENS SITOP POWER 10,DC POWER SUPPLY 6EP1434-2BA00
MITSUBISHI MELSEC INPUT UNIT AX81C PLC
LEITZ WETZLAR LENS ∞/- PL FLUTAR 10X/0.25 D
BECKHOFF BK5220 DEVICENET KL1184[4],KL2184,KL4022[3],KL3054[2],KL9010
MITSUBISHI PLC FX2N-64MR-ES/UL #1
RKC INSTRIMENT FAREX SR MINI SYSTEM M-PCP-A-14N-M*AB H-TIO-B-FK09-D*NN TSRM-2(8)
DAIICHI DENTSU SAN-12II AXIS CONTROLLER
ORIENTAL MOTOR BERGER LAHR 5-PHASE DRIVER SPD5520
ORIENTAL MOTOR CONTROL PACK SS32-SSSD LOT OF 7