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Service Manual

(Model : OV-11 / 12)

작성일자 2008-3-31

개정일자 2008-3-31

개정번호 Rev.(0)

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Содержание OV-11

Страница 1: ...Service Manual Model OV 11 12 작성일자 2008 3 31 개정일자 2008 3 31 개정번호 Rev 0 ...

Страница 2: ...packing disassembly 2 1 3 Main board PCB disassembly 2 1 4 SSR disassembly 2 1 5 Relay disassembly 2 1 6 Noise Filter disassembly 2 1 7 3 way valve disassembly 2 1 8 Heater disassembly 2 1 9 Display PCB disassembly 2 1 10 Temperature control Sensor disassembly 2 1 11 High Temp Limit Sensor disassembly 2 1 12 Keeper disassembly 2 1 13 Communication Board disassembly 2 2 Inspection 2 2 1 Main Board ...

Страница 3: ...alfunction Solution Replace a heater 1 2 1 8 Heater disassembly Reference When replacing a Heater Inner Chamber Jacket Chamber Disassembly are very complicated Do not replace the heater in the field 2 The assembly is reverse order of disjointing Heater should be checked resistance for inferiority Classification Symptom Service Factor Temperature Temp doesn t increase Relay Malfunction Check point ...

Страница 4: ...ction Check point 1 Set the SV value higher than PV Press the Start Button 2 Check the HEAT LED is lightning on Display No Flickering Lightning 3 Check Terminal Resistance using of the Multi meter Resistance MODE Æ If resistance doesn t measure it is a malfunction Solution Replace the SSR 1 2 1 1 Side Cover panel disassembly Reference 2 2 1 4 SSR disassembly Reference 3 The assembly is reverse ord...

Страница 5: ... Button 2 Check the HEAT LED is lightning on Display No Flickering Lightning 3 Check Terminal Resistance using of the Multi meter DC MODE Æ If resistance doesn t measure it is a malfunction Solution Replace the PCB 1 2 1 1 Side Cover panel disassembly Reference 2 2 1 3 Main board PCB disassembly Reference 3 The assembly is reverse order of disjointing ...

Страница 6: ...assembly is reverse order of disjointing Classification Symptom Service Factor Temperature Temp trembling Wrong PID Value Check point 1 Press Temp button with turning on the Main power switch at the same time 2 Press Auto tuning Button to check the PID value Æ If the unit PID value is different from a basis PID value It s error Solution Operate the Auto tuning 1 Press Temp button to set the desire...

Страница 7: ...function Check point 1 Operate the Auto tuning Æ If the temp is trembling after Auto tuning It is PCB Malfunction Solution Replace the PCB 1 2 1 1 Side Cover panel disassembly Reference 2 2 1 3 Main board PCB disassembly Reference 3 The assembly is reverse order of disjointing ...

Страница 8: ...1 Side Cover panel disassembly Reference 2 Tighten the temp sensor terminal bolts of PCB 3 The assembly is reverse order of disjointing Classification Symptom Service Factor Temperature Variation Cause PCB Malfunction Check point 1 Replace the PCB to check the situation Æ If Variation is not caused it is PCB Malfunction Solution Replace the PCB 1 2 1 1 Side Cover panel disassembly Reference 2 2 1 ...

Страница 9: ...e the temp detector installed inner chamber 4 Press Temp Button six times to modify the Bias value 5 Modify the BIAS value to set the temp is equal to the temp detector And then press the ENTER Button to restore the value 6 Modify the temp value Classification Symptom Service Factor Temperature Variation Cause Measurement Inferiority Check point 1 Check the temp detector position Æ If the temp det...

Страница 10: ...Side Cover panel disassembly Reference 2 Tighten the temp sensor terminal bolts of PCB 3 The assembly is reverse order of disjointing Classification Symptom Service Factor Temperature Temp keeps rising PCB Malfunction Check point 1 Replace the PCB to check the symptom Æ If Variation is not caused it is PCB Malfunction Solution Replace the PCB 1 2 1 1 Side Cover panel disassembly Reference 2 2 1 3 ...

Страница 11: ...ate the Input SSR of Harness 2 Measure resistance checking SSR output using of the multi meter Resistance MODE Æ If resistance measure it is SSR malfunction Solution Replace the SSR 1 2 1 1 Side Cover panel disassembly Reference 2 2 1 4 SSR disassembly Reference 3 The assembly is reverse order of disjointing ...

Страница 12: ...sjointing Classification Symptom Service Factor Power Replace the Fuse Replace the Fuse Check point 1 Measure output terminals No 2 5 When turning on the Main power Æ If Power is not measured Switch Malfunction Solution Replace the Switch 1 2 1 1 Side Cover panel disassembly Reference 2 Separate Switch wiring When assembling location is a caution 3 Pull out the parts which are involved in the Swit...

Страница 13: ... 1 2 1 1 Side Cover panel disassembly Reference 2 2 1 3 Main board PCB disassembly Reference 3 The assembly is reverse order of disjointing Classification Symptom Service Factor Power No Power Laboratory power Malfunction Check point 1 Check the electricity of socket with multi meter Æ If power doesn t measure or value is lower or higher Laboratory power Malfunction Solution Make Power of Laborato...

Страница 14: ...nd fuse holder Tube it with Shirking tube 3 The assembly is reverse order of disjointing Classification Symptom Service Factor Power No power Short circuit of power or disconnection Check point 1 2 2 9 Wiring short circuit Inspection Reference Æ If resistance is not measured it is short circuit 2 Check the end terminal of wire Æ If wire connection is not good disconnection Malfunction Solution If ...

Страница 15: ...nel disassembly Reference 2 2 1 3 Main board PCB disassembly Reference 3 The assembly is reverse order of disjointing Classification Symptom Service Factor Power Power shut off during operation Over current Check point 1 Check the fuse and then replace it 2 Check an electric current both ground terminal and Wire using of the multi meter Check the polar terminal of Wiring 3 Check Heater leakage Æ 1...

Страница 16: ...et under capacity Classification Symptom Service Factor Power Power shut off after turning on Heater leakage Check point 1 Check the fuse 2 Separate the heater terminal and wire 3 Measure Resistance both the heater terminal and heater exterior Æ If fuse is down and heater resistance is measured Heater leakage Solution Replace the heater 1 2 1 8 Heater disassembly Reference When replacing a Heater ...

Страница 17: ...on Solution Replace the wire 2 2 9 Wiring short circuit Inspection Reference Classification Symptom Service Factor Power Power shut off after turning on Electric capacity over in Multi outlet Check point 1 Check the fuse 2 Check an electric outlet capacity connected the unit 3 Check total units connected the multi electric outlet Æ If total units connected the multi electric outlet is over than th...

Страница 18: ...ay PCB disassembly 3 The assembly is reverse order of disjointing Classification Symptom Service Factor Display Push buttons error Assembly error on Display board Check point 1 Check Display board is installed firmly 2 Disconnect Display board from the panel test pushing all buttons one by one Æ If all buttons works good while there is some space on installing the Display board this means assembly...

Страница 19: ...mbly 2 Refer to 2 1 9 Display PCB disassembly 3 The assembly is reverse order of disjointing Classification Symptom Service Factor Display Display error Main PCB error Check point 1 Disassemble the Harness on the Display board and re assemble correctly 2 Replace a new Display Panel Æ Æ If you still notice display error the Main PCB is out of order Solution Replace main PCB 1 Refer to 2 1 1 Side Co...

Страница 20: ...disassembly Reference 3 The assembly is reverse order of disjointing Classification Symptom Service Factor Display Display error Temp sensor contact error Check point 1 Check the bolts of Temp Sensor on the Main control board Æ If you detect bolting is loose contact error Solution Fasten the bolts of Temp Sensor on the Main control board 1 2 1 1 Side Cover panel disassembly Reference 2 Fasten the ...

Страница 21: ...heck point 1 Disassemble the Harness on the Display board and re assemble correctly Æ If Display turns OK Harness contact was error Solution Replace DISPLAY PCB 1 Refer to 2 1 1 Side Cover panel disassembly 2 Disconnect Harness and reassemble 3 The assembly is reverse order of disjointing ...

Страница 22: ...sification Symptom Service Factor Door Not closed Keeper damage Check point 1 After dismantling the keeper and then check it Solution 1 2 1 12 Keeper disassembly Reference 2 The assembly is reverse order of disjointing ...

Страница 23: ...n Replace heater 1 2 1 8 Heater disassembly Reference When replacing Heater Do not disassemble Chamber Jacket and Chamber 2 The assembly is reverse order of disjointing Be sure to check Heater resistance before finishing Classification Symptom Service Factor Noise Circuit breaker activates Wire insulation error Check point 1 Check FUSE first 2 If Fuse blows replace with a new one 3 Measure resista...

Страница 24: ...cation Board error Check point 1 Replace Communication Board Æ After replacing if it works the communication board is error Solution Replace communication PCB 1 2 1 1 Side Cover panel disassembly Reference 2 2 1 13 Communication Board disassembly Reference 3 The assembly is reverse order of disjointing ...

Страница 25: ...uum status 2 Check if Vent Valve fixing bolt is loosen if loosens easily 3 Check Reducer s NUT on Temperature Controlling If you still find any faulty on the above parts 1 Fill water in the chamber by 1 cm 2 Let the chamber vacuum status 3 Turn the chamber left right and up down to find air leaking 4 If Chamber is OK but pipes are leaking replace the leaking pipe ...

Страница 26: ...dirty and replace the damaged packing Solution Replace a new packing 1 2 1 2 Door packing disassembly Reference 2 The assembly is reverse order of disjointing Classification Symptom Service Factor Vacuum Unit can t have vacuum status Vacuum line is stock Check point 1 With reference of How to check leaking point find the leaking point 2 Open vacuum line and blow checking with compressor air Æ If y...

Страница 27: ...g 2 Check if Door is twisted Æ Check Door closing Solution Locate Door position correctly Classification Symptom Service Factor Vacuum Vacuum is leaking Packing error Check point 1 With reference of How to check leaking point find the leaking point 2 Check if there is dirty on the side of packing 3 Check if the packing has been damaged Æ Remove the dirty and replace the damaged packing Solution Re...

Страница 28: ...ng Vacuum Pipe has crack Check point 1 With reference of How to check leaking point find the leaking point Solution Replace vacuum pipe 1 2 1 7 3 way valve disassembly Reference 2 2 1 10 Temperature control Sensor disassembly Reference 3 The assembly is reverse order of disjointing Classification Symptom Service Factor Vacuum Vacuum is leaking Fitting has been loosened on vacuum pipe Check point 1...

Страница 29: ...tom Service Factor Vacuum Vacuum is leaking Inner chamber has crack Check point 1 With reference of How to check leaking point find the leaking point Solution Replace the inner chamber This job is hard to be performed at site ...

Страница 30: ... 30 2 Disassembly Inspection 2 1 Disassembly 2 1 1 Side Cover panel disassembly Loosen the circled blots by using driver Disconnect harness on the side Disassembly has been done ...

Страница 31: ... 31 2 1 2 Door packing disassembly Pull out the packing to the arrow way Done When reassembling be careful of the packing direction ...

Страница 32: ... 32 2 1 3 Main board PCB disassembly Disconnect the circled harness Loosen fixing bolt by using driver Loosen fixing bolt by using driver Done Warning carefully connect Temperature sensor ...

Страница 33: ... 33 2 1 4 SSR disassembly Disconnect wires on SSR Loosen blots by using driver Disconnect SSR 2 1 5 Relay disassembly Disconnect the circled Loosen blots by using driver Done ...

Страница 34: ... 34 2 1 6 Noise Filter disassembly Disconnect the bolts by using 7mm vox driver Loosen blots by using driver ...

Страница 35: ... valve disassembly Remove the circled headless bolts Remove handle Loosen the circled bolts Disconnect control panel Loosen the circled bolts Loosen the circled valve fixing nut Loosen the circled nut to the arrow way ...

Страница 36: ...ght and left Loosen and remove the fixing bolt on the rear When replacing Heater it is not recommended to disassemble Chamber Jacket and Chamber because this procedure is quite complicate 2 1 9 Display PCB disassembly The circled is Display PCB Loosen the circled bolts ...

Страница 37: ...nsor disassembly The circled is Temperature control Sensor Remove all Shelf Loosen the circled bolt and remove bottom shelf Loosen the circled bolt to remove Temp Sensor Block Loosen nut on the Reducer remove out to the arrow direction ...

Страница 38: ... 38 2 1 11 High Temp Limit Sensor disassembly The circled is Sensor wire Pull out to the arrow direction Done ...

Страница 39: ... 39 2 1 12 Keeper disassembly Loosen the fixing bolts Done 2 1 14 Communication Board disassembly Disconnect harness Loosen bolts by using 5mm vox wrench Refer to OF disassembly Done ...

Страница 40: ... 40 2 2 Inspection 2 2 1 Output voltage of Relay on Main Control Board 1 Press START key to operate unit 2 Measure output voltage of terminal with voltage meter DC MODE ...

Страница 41: ...put voltage of Heater on Main Control Board 1 Set temperature above PV actual value and press START key 2 Check out HEAT LED on display It should be ON 3 Measure output voltage of terminal with voltage meter DC MODE ...

Страница 42: ... 42 2 2 3 AC input voltage of Main Control Board 1 Switch ON 2 Measure AC input voltage with voltage meter AC MODE ...

Страница 43: ... 43 2 2 4 Short circuit of Heater Measure resistance of heater with resistance meter ...

Страница 44: ... 44 2 2 5 Current leakage of Heater Measure resistance with resistance meter ...

Страница 45: ... 45 2 2 6 Noise Filter defect 1 Switch ON 2 Measure output voltage with voltage meter AC MODE ...

Страница 46: ... 46 2 2 7 Main Power Switch defect 1 Switch ON 2 Measure output voltage with voltage meter AC MODE ...

Страница 47: ... 47 2 2 8 SSR Board defect 1 Take out harness of SSR input 2 Measure resistance of SSR output with resistance meter ...

Страница 48: ...lug and fuse holder 1 Switch ON 2 Measure output between plug and main power switch Measure between plug and Input of Noise filter Measure between plug and output of Noise Filter Measure between plug and Relay Measure between plug and input voltage AC of Main Board PC B ...

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