磁帶機(jī)故障尋跡表.doc

磁帶機(jī)（MTD2216型）簡(jiǎn)介2216型磁帶機(jī)（MTD，Magnetic Tape Drive）是DMS100/200系統(tǒng)的一種半永久性的外部存儲(chǔ)設(shè)備。大量的數(shù)據(jù)可以從DMS系統(tǒng)輸出并寫到磁帶上，也可以從磁帶上讀出數(shù)據(jù)寫到DMS系統(tǒng)的數(shù)據(jù)存儲(chǔ)器中?？梢杂涗浘钟跋裎募↖MAGE）、長(zhǎng)途計(jì)費(fèi)文件（AMA、ICMA）、市話計(jì)費(fèi)文件（BIL、OOS、BCK）、操作測(cè)量文件（OM）和日志文件（JF）等，但主要是用來(lái)拷貝DMS100/200系統(tǒng)的計(jì)費(fèi)文件以便進(jìn)行脫機(jī)處理。磁帶機(jī)面板示意圖如下：磁帶機(jī)手動(dòng)操作方法根據(jù)磁帶機(jī)面板上的磁帶路徑安裝示意圖正確纏繞好磁帶，并將磁帶伸直。按動(dòng)POWER開(kāi)關(guān)，POWER燈亮。按LOAD開(kāi)關(guān)，上下力臂升起磁帶處于繃緊狀態(tài)，再次按動(dòng)LOAD開(kāi)關(guān)，磁帶向前行進(jìn)，當(dāng)BOT(Beginning Of Tape)磁帶的開(kāi)始標(biāo)記移動(dòng)到傳感器位置時(shí)，磁帶停止前進(jìn)，此時(shí)LOAD燈亮。按動(dòng)ONLINE開(kāi)關(guān)，ONLINE燈亮，這時(shí)候就可以從終端上使用磁帶機(jī)了。如果磁帶已經(jīng)安裝在磁帶機(jī)上，并且BOT標(biāo)記已超過(guò)了傳感器位置，此時(shí)按動(dòng)LOADD開(kāi)關(guān)后磁帶將一直向前行進(jìn)，這時(shí)候按動(dòng)REVERSE后退開(kāi)關(guān)磁帶不會(huì)向后倒退，只有按動(dòng)REWIND快退開(kāi)關(guān)，磁帶才會(huì)快速倒退至BOT標(biāo)記位置時(shí)停下來(lái)，這時(shí)LOAD燈亮，再按ONLINE開(kāi)關(guān)，ONLINE燈亮，表明可以正常使用了。MTD 2216 Troubleshooting 磁帶機(jī) 故障檢查表.Problem， Problem Cause and Solution 故障現(xiàn)象 故障原因及解決方法1, Fuse PS1F1 opens Repeatedly. 在FS1上的保險(xiǎn)管F1反復(fù)熔斷（ FS1為磁帶機(jī)內(nèi) 部電源電路底座。） A，-48V and ground power leads reversed at power interface, TB1, of power Supply Assembly -48V和電源地線在磁帶機(jī)內(nèi)部電源底座的TB1（Terminal Block）端子板上接反。Install power leads correctly. 正確安裝電源接線。B，Q1 and/or Q2 of Power Supply Assembly PS1, defective.電源底座PS1上的電源調(diào)整管Q1和/或Q2壞。 Replace Q1 and Q2. 更換Q1和Q2。（參考磁帶機(jī)說(shuō)明書(shū)4.09）C, Inverter-Oscillator Card PS1A1, defective. 逆變振蕩器電路板PS1A1壞。Replace Inverter-Oscillator Card PS1A1.更換逆變振蕩器電路板PS1A1。（參考磁帶機(jī)說(shuō)明書(shū)4.04）D, Rectifiers U1and / or U2 of Power Supply Assembly PS1, defective.電源底座PS1上的整流管U1和U2壞。Replace U1和U2。（參考磁帶機(jī)說(shuō)明書(shū)4.05）2 Tape Transport Power wont come up when the POWER switch is operated.按下POWER 開(kāi)關(guān)磁帶機(jī)電源不啟動(dòng)。A， Fuse opened. 保險(xiǎn)開(kāi)路。Replace fuse. 更換保險(xiǎn)。（參考磁帶機(jī)說(shuō)明書(shū)4.01）B, -48V and ground power leads are not connected properly at power interface,TB1, of Power Supply Assemble PS1.電源底座PS1的接線端子TB1上的-48V正負(fù)極電源線接觸不良。Install power leads correctly.正確安裝電源線。C, Inverter-Oscillator Card PS1A1, defective. 逆變振蕩器電路板PS1A1壞。Replace Inverter-Oscillator Card PS1A1.更換逆變振蕩器電路板PS1A1。（參考磁帶機(jī)說(shuō)明書(shū)4.04）D, POWER switch defective. 電源開(kāi)關(guān)壞。Replace POWER Switch. 更換電源開(kāi)關(guān)。（參考磁帶機(jī)說(shuō)明書(shū)5.03）3. Tape Transport Power turns on momentarily after the POWER switch is operated.按動(dòng)POWER開(kāi)關(guān)磁帶機(jī)電源立即啟動(dòng)。An over voltage condition exists. 存在過(guò)壓狀況。Monitor the following test points while operating the Tape Transport POWER switch in order to determine which voltage regulator is defective.開(kāi)啟電源開(kāi)關(guān)的同時(shí)測(cè)量以下測(cè)試點(diǎn)，以便確認(rèn)哪個(gè)電壓調(diào)整管壞。 Control Logic Card A2 TP8 (+5.25V max) （TP8為Test Point8及測(cè)試點(diǎn)8）控制邏輯電路板A2 TP8（+5.25V最大）Servo-Regulator Card A6 TP6 (+12.6V max) A6 TP7 (-12.6v max)伺服調(diào)整電路板TP6（+12.6V最大） A6 TP7（-12.6V最大）A6TP9 (+5.25V max)。注：A2和A6為控制邏輯板和伺服調(diào)整板的編號(hào)。 Replace defective regulator.更換壞的調(diào)整管。（參考磁帶機(jī)說(shuō)明書(shū)4.26-4.32）4. Tape tension is not established when the LOAD switch is operated for the first time.首次按LOAD開(kāi)關(guān)力臂不動(dòng)。Relay K1 on the Servo-Regulator Card A6 does not operate because:伺服調(diào)整板A6上的繼電器K1不動(dòng)是因?yàn)椋篈, BOT/EOT thresholds are incorrect. BOT/EOT閥限電壓不正確。Adjust BOT/EOT thresholds. 調(diào)整BOT/EOT閥限電壓（BOT; Beginning Of Tape. 磁帶的開(kāi)始標(biāo)記。）（EOT, End Of Tape. 磁帶的結(jié)束標(biāo)記。）（參考磁帶機(jī)說(shuō)明書(shū)3.12-3.14）B, a low voltage condition exists. 存在低電壓狀況。 Measure voltages at the following test points to determine which regulator is defective.測(cè)量以下測(cè)試點(diǎn)確認(rèn)哪個(gè)調(diào)整管壞。 控制邏輯板 A2 TP8 (+4.75 min)伺服調(diào)整板 A6 TP7 (-11.4V min)更換損壞的調(diào)整管。（參考磁帶機(jī)說(shuō)明書(shū)4.27-4.28）C, Relay K1 on Servo-Regulator Card A6 is defective. .伺服調(diào)整板A6板上的繼電器K1壞。Replace relay K1.更換壞的繼電器K1. （參考磁帶機(jī)說(shuō)明書(shū)4.27-4.28）D, BOT/EOT sensor defective. Replace defective BOT/EOT sensor U1. BOT/EOT 傳感器壞更換壞的傳感器U1。（U1為傳感器代號(hào)）（參考磁帶機(jī)說(shuō)明書(shū)3.12-3.14）E, Control Logic Card A2 is defective.控制邏輯電路板A2壞。Replace control logic card.A2.更換控制邏輯電路板A2。（參考磁帶機(jī)說(shuō)明書(shū)3.27-3.28）F, Servo-Regulator Card A6 is defective.伺服調(diào)整板A6壞。Replace Servo-Regulator Card A6更換伺服調(diào)整板A6。（參考磁帶機(jī)說(shuō)明書(shū)4.27-4.28）5, Tension arms raise to normal position and then drop to lower limits after LOAD switch operated for the first time.首次按LOAD開(kāi)關(guān)力臂升至正常位置后跌落下來(lái)。Limit switch out of adjustment 限位開(kāi)關(guān)位移出調(diào)整范圍。.Readjust limit switch.重新調(diào)整限位開(kāi)關(guān)位置。（參考磁帶機(jī)說(shuō)明書(shū)3.05）6, Tape unwinds or Tension arms hit stops when LOAD switch Operated for the first time. 首次按LOAD開(kāi)關(guān)磁帶快速倒轉(zhuǎn)或力臂撞擊槽道上端。A , Tape not threaded properly.磁帶安裝路線不合適。（參考磁帶機(jī)說(shuō)明書(shū)3.04） Verify that tape is threaded in the proper manner. 檢查磁帶路線是否按正確方式安裝。B, Upper or Lower Tension Arm Position Sensor Cards A4 or A5, are not adjusted properly.上或下力臂位置傳感器電路板A4或A5調(diào)整不合適。（A4和A5分別為上和下力臂位置傳感器電路板，其結(jié)構(gòu)相同可以互換） Check output of sensors.檢查傳感器輸出電壓。(參考磁帶機(jī)說(shuō)明書(shū)4.20-4.22)C, On the basis that proper Tension Arm Position sensor Cards output cannot be obtained, the sensor card is defective.一般地當(dāng)正確的力臂傳感器電路板輸出電壓檢測(cè)不到，則傳感器電路板壞。 Replace appropriate Tension Arm Position Sensor card.更換力臂位置傳感器電路板。(參考磁帶機(jī)說(shuō)明書(shū)4.20-4.22)D, If Tension Arm Position Sensor Card has proper output, the Servo-Regulator Card A6 is defective.如果力臂位置傳感器電路板輸出電壓正常，則伺服調(diào)整電路板A6壞。Replace Servo-Regulator Card.A6更換伺服調(diào)整板A6。(參考磁帶機(jī)說(shuō)明書(shū)4.13-4.25)7 After pressing the LOAD switch a second time, nothing happens ( Tape should advanced to Load Point in forward direction.) 第二次按下LOAD開(kāi)關(guān)時(shí)磁帶不動(dòng)。（磁帶應(yīng)前進(jìn)到Load 位置） A, Tape is already at Load Point (BOT). 磁帶已經(jīng)處于Load位置(BOT) Nothing wrong. Continue with normal operating sequence.沒(méi)有問(wèn)題，繼續(xù)按正常順序操作。.B, Control Logic Card A2 is defective.控制邏輯電路板A2壞。Replace control Logic Card, A2更換控制邏輯電路板A2。C, Servo-Regulator Card A6 is defective.伺服調(diào)整板A6壞。Replace Servo-Regulator Card A6.更換伺服調(diào)整板A6。(參考磁帶機(jī)說(shuō)明書(shū)4.02-4.17)8, Tape Transport doesnt sense BOT or EOT markers on tape.磁帶運(yùn)行時(shí)不識(shí)別磁帶上的BOT或EOT標(biāo)記。 A, Photo-sensors dirty.光傳感器臟了。Clean lenses on photo-sensor.清潔光傳感器鏡面。B, BOT/EOT thresholds adjusted incorrectly.BOT/EOT 閥限電壓不正常Readjust thresholds.重新調(diào)整閥限電壓。C, BOT/EOT photo-sensor is defective. BOT/EOT 光傳感器壞。Replace Photo-sensor.更換光傳感器。(參考磁帶機(jī)說(shuō)明書(shū)3.12-3.14)D, Control Logic Card A2 is defective. 控制邏輯電路板A2壞。Replace Control Logic Card A2.更換控制邏輯電路板A2。(參考磁帶機(jī)說(shuō)明書(shū)3.12-3.14, 3.29-3.30, 3.32)9, Tape Transport doesnt Respond to Local Forward or Rewind commands. 在磁帶機(jī)本機(jī)狀態(tài)下操作Forward, Reverse or Rewind開(kāi)關(guān)時(shí)磁帶不動(dòng)。A, Control Logic Card A2 is defective. 控制邏輯電路板A2壞。Replace Control Logic Card A2.更換控制邏輯電路板A2。(參考磁帶機(jī)說(shuō)明書(shū)3.06-3.14, 3.29- 3.32) B, Servo-Regulator Card A6 is defective. 伺服調(diào)整板A6壞。 Replace Servo-Regulator Card.更換伺服調(diào)整板A6。(參考磁帶機(jī)說(shuō)明書(shū)4.01-4.16)10, Capstan motor creeps slowly when it should be stopped.傳動(dòng)電機(jī)在應(yīng)停止時(shí)漫漫滑動(dòng)。Stop null levels on Control Logic and Servo-Regulator Cards improper.控制邏輯和伺服調(diào)整電路板上的靜態(tài)零電位漂移。Readjust null circuitry.重新調(diào)整零電路。(參考磁帶機(jī)說(shuō)明書(shū)3.09-3.11. 4.05-4.17)11, upper or lower tension arms not centered properly. 上或下力臂不在中心位置。Zero set potentiometer R5 on Tension Arm Position Sensor Cards (A4orA5) not adjusted properly.力臂位置傳感器電路板零調(diào)整電位器R5沒(méi)有調(diào)整好。Readjust zero set potentiometer R5 on Tension Arm Position Sensor Card for proper centering of arm.重新調(diào)整力臂位置傳感器電路板零調(diào)整電位器R5使力臂至中心位置。(參考磁帶機(jī)說(shuō)明書(shū)4.20-4.25)12， Tape Transport does not read a known good tape properly. 磁帶機(jī)不能正常讀出已知的好磁帶。 A, Head, guides, and tape path dirty.磁頭、導(dǎo)輪、磁帶路徑臟了。Clean. 清潔磁頭、導(dǎo)輪等。B, Poor tape tracking.磁帶路徑不正（不在一條線）。Verify Tape Transport requires a tracking realignment.檢查磁帶路徑按要求使之為一條線。 (參考磁帶機(jī)說(shuō)明書(shū)3.06)C, Skew alignment of head improper.磁頭角度不正。Realign Read Head.重調(diào)整讀磁頭角度。注：需使用專用儀器和示波器調(diào)整 。(參考磁帶機(jī)說(shuō)明書(shū)3.17)D, Read amplifier gain improper.讀放大器增益不正常。Readjust read amplifier gain.重新調(diào)整讀放大器增益。注：需使用專用儀器和示波器調(diào)整 。E, Component failure occurred on read portion of Data Card electronics. 數(shù)據(jù)板電路讀部分元件故障。 Replace Data Card A1.更換數(shù)據(jù)電路板A1。(參考磁帶機(jī)說(shuō)明書(shū)7.00. 4.02)F, Defect on write portion of Data Card electronics causes data to be erased.數(shù)據(jù)板寫部分電路故障導(dǎo)致數(shù)據(jù)被抹掉。Replace Data Card A1.更換數(shù)據(jù)電路板A1。(參考磁帶機(jī)說(shuō)明書(shū)7.06-7.12. 4.02)G, Read head defective.讀磁頭壞。Replace head assembly.更換磁頭組件。注：更換磁頭需使用專用儀器和示波器檢查磁頭角度。(參考磁帶機(jī)說(shuō)明書(shū)3.12. 4.08)13, Tape Transport will not write data on tape properly.磁帶機(jī)不能正常寫上數(shù)據(jù)。A, File protest ring not installed on supply reel. 未安裝文件保護(hù)圈。 Install protect ring.安裝文件保護(hù)圈。(參考磁帶機(jī)說(shuō)明書(shū)3.04)B, Head, guides, and tape path dirty.磁頭、導(dǎo)輪、磁帶路徑臟了。Clean. 清潔磁頭、導(dǎo)輪等。C, File protect solenoid out of adjustment, or defective.文件保護(hù)彈簧繼電器位移或損壞。Readjust solenoid, or replace as required.根據(jù)情況調(diào)整或更換彈簧繼電器。(參考磁帶機(jī)說(shuō)明書(shū)4.29-30. 3.07-3.10)D, Component failure occurred on write portion of Data Card A1electronics.數(shù)據(jù)板A1寫電路部分元件故障。Replace Data Card A1.更換數(shù)據(jù)電路板A1。(參考磁帶機(jī)說(shuō)明書(shū)7.01-7.21.