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Ricoh B234, Service & Troubleshooting Manual

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Ricoh B234 Service & Troubleshooting Manual Download Page 86

SERVICE CALL CONDITIONS 

B234/B235/B236/D101/D102/D103 

4-84 

SM 

 

Book Rotation HP Sensor 1 (S95) Error 

SC797-11 

B 

Book rotation sensor 1 did not go OFF because the book rotation motor 1 
(M41) did not leave the home position. 
-or- 
Book rotation sensor 1 did not go ON because the book rotation motor 1 
(M41) did not arrive at the home position. 
-or- 
At power on, book rotation motor 1 failed to rotate the left plate through the 
prescribed arc for initialization. 

 

 

•

  Jam or overload during book rotation 

•

  Book rotation motor 1 (M41) defective 

•

  Book rotation HP sensor 1 (S95) defective 

•

  Motor or sensor harness loose, broken, defective 

 

Book Rotation HP Sensor 2 (S91) 

SC797-12 

B 

Book rotation sensor 2 did not go OFF because the book rotation motor 1 
(M42) did not leave the home position. 
-or- 
Book rotation sensor 1 did not go ON because the book rotation motor 1 
(M42) did not arrive at the home position. 
-or- 
At power on, book rotation motor 1 failed to rotate the left plate through the 
prescribed arc for initialization. 

 

 

•

  Jam or overload during book rotation 

•

  Book rotation motor 1 (M42) defective 

•

  Book rotation HP sensor 1 (S91) defective 

•

  Motor or sensor harness loose, broken, defective 

 

Cutter Motor (M35) Error 
The blade in the trimming 
unit did not move from the 
home position or reach the 
blade cradle during cutting. 

•

  Blade is dull, cutting poorly 

•

  Cutter motor (M35) defective 

•

  Blade sensor 1, blade sensor 2 defective 

•

  Motor or sensor harness loose, broken, 

defective 

SC797-13 

B 

Note

: Blade sensors 1 and 2 (S84, S85) are mounted on the cutter control 

board.   

 

Book Lift Tray HP Sensor (S79) Error 

SC797-14 

B 

The book tray lift HP sensor did not go 
OFF within the prescribed time after the 
book tray lift motor (M38) turned on to 
raise the tray and receive a finished 
book from the trimming unit. 
-or- 
The book tray lift HP sensor did not go 
ON within the prescribed time after the 
book tray lift motor (M38) turned on to 
lower the tray and book. 

•

  Book jammed under the tray 

•

  Book tray lift motor (M38) 

defective 

•

  Book lift tray HP sensor (S79) 

defective 

•

  Motor or sensor harness 

loose, broken, defective 

 

Summary of Contents for B234

Page 1: ...HOOTING REVISION HISTORY Page Date Added Updated New 5 09 07 2006 Updated Information Paper Jam Codes 26 27 11 21 2006 Updated Information Service Call Conditions 51 52 09 07 2006 Updated Information...

Page 2: ......

Page 3: ...in the machine may be corrupted Because of this it may not be possible to restart the downloading program In addition if the GW controller software cannot be downloaded other software on other SD card...

Page 4: ...ne off on Set DIP SW 1 to ON and retry Replace RAM DIMM Replace controller board Controller ROM update error 5 05 Download Error E05 Power off on Error occurs when writing to the device Cycle the mach...

Page 5: ...2 Module ID Card No xx xx Download interrupted because card is not correct or power failure interrupted download Use the correct card If power failure caused the failure remove the card and insert ano...

Page 6: ...with the start up SD card that has the source data Set controller DIPSW 1 to ON to force the machine to write If you cannot force the machine to write replace the controller board Download invalid 50...

Page 7: ...tion of the jammed paper becomes lit does not flash in the graphic illustration A jam code is displayed on the operation panel to indicate the cause and location of the jam For more details please ref...

Page 8: ...Z4 25 Duplex Transport Sensor 2 Late Z4 26 Duplex Transport Sensor 3 Late Z1 27 Duplex Inverter Sensor Late Z1 28 Duplex Inverter Relay Sensor Late A 53 1st Paper Feed Sensor Lag A3 54 2nd Paper Feed...

Page 9: ...ed Out Belt Motor R1 3 118 Punch Motor R4 8 119 R4 8 120 Pre Stack Transport Motor R1 3 121 Cover Interposer Tray B835 Display No Jam Cause Q1 130 1st Paper Feed Sensor Late Q1 131 1st Paper Feed Sens...

Page 10: ...t M7 11 176 Booklet Stapler Front M7 11 177 Booklet Stapler Rear M7 11 178 Stack Junction Gate Motor M7 11 179 Clamp Roller Retraction Motor M7 11 180 Bottom Fence Lift Motor M7 11 181 Fold Plate Moto...

Page 11: ...rator Tool and then set Service Mode Lock to OFF After he or she logs in Operator Tools System Settings Administrator Tools Service Mode Lock OFF This unlocks the machine and lets you get access to al...

Page 12: ...sable only the features that use the defective item These SCs are not shown to the operator under normal conditions They are displayed on the operation panel only when the defective feature is selecte...

Page 13: ...machine cannot display the SC number If this occurs check the SC number after leaving the SP mode If you set SP 5875 to on the machine reboots automatically when the machine issues a Level B D SC code...

Page 14: ...tion 300 Charge 320 Image Writing Exposure 340 Development 360 Image Memory 400 Transfer 410 Separation 420 Cleaning 430 Quenching 440 Drum 490 Other Feed Transport Duplexing Fusing 500 Feed Transport...

Page 15: ...the OFF condition during initialization or copying Scanner home position sensor defective Poor connection between HP sensor and MCU board Scanner motor control unit MCU board defective Scanner wire ti...

Page 16: ...ner motor defective high torque Overload on scanner drive mechanism MCU board defective scanner motor unit control Scanner Motor Error 2 SC126 B The scanner motor does not stop within 15 mm after the...

Page 17: ...utomatic gain control failed to achieve a value within the range 7 to 0 of the target value 128 Standard white plate defective dirty Moisture inside the scanner unit SBU IPU harnesses defective BCU IP...

Page 18: ...Unit Fan Error Scanner Intake Fan SC180 B The MCU issued a lock signal fro the scanner intake fan rear right Fan MCU SIB harnesses loose or defective Scanner intake fan motor defective MCU defective S...

Page 19: ...IB defective Scanner Unit Fan Error Scanner Unit Exhaust Fan SC187 B The MCU issued a lock signal for the the scanner unit exhaust fan rear left Scanner unit harness loose defective Fan MCU harness lo...

Page 20: ...defective BCU defective Polygon Motor Error 4 Unstable Timeout SC205 B The machine detected that the polygon mirror motor signal went inactive at some time other than While an image was being created...

Page 21: ...e off on Check the harnesses connectors of the IPU Controller BCU GAVD on the IPU board defective Controller defective BCU defective FGATE Error 2 Signal Failed to Turn Off SC231 B The FGATE signal di...

Page 22: ...d to return to its home position Connectors between motor and IOB loose broken defective Charge wire dirty defective broken Wire cleaning pad defective Motor or motor board in motor unit defective Pre...

Page 23: ...w Lower Limit SC364 C The result of the check of the TD sensor output Vt after every copy for 10 continuous copies was Vt 0 5V out of range TD sensor dirty or defective TD sensor connector to BCU loos...

Page 24: ...nt correct PWM value is used for control The value displayed by SP3103 ID Sensor Output Display is the actual incorrect value ID Sensor Error 2 Background Output Error SC401 C One of the following con...

Page 25: ...seconds ID sensor harness connector is loose broken or defective ID sensor dirty ID sensor defective IOB defective LD Unit defective BCU defective Development power pack defective NOTE The SC code is...

Page 26: ...speed or the value of SP3904 002 could not be attained for low speed mode The LD power adjustments exceeded the upper and lower limits 185 and 70 Drum potential sensor harness connector is loose broke...

Page 27: ...730V Drum potential sensor harness connector loose broken defective Drum potential sensor defective LD unit defective pattern could not be created Transfer Output Error SC440 B One of the following c...

Page 28: ...tion Error SC488 C The push switch signal from the cleaning blade solenoid was incorrect The signal is detected 1 sec after the solenoid operates 2nd blade solenoid connector loose broken defective 2n...

Page 29: ...inder Toner end sensor in the toner supply cylinder defective Agitator in the toner supply cylinder defective Toner supply cylinder agitator motor defective Toner Collection Bottle Error SC496 B The t...

Page 30: ...has stopped the tray and motor 3rd pick up solenoid connector is loose 3rd pick up solenoid is blocked by an obstruction 4th Tray LCT Tray 1 Lift Malfunction SC504 D One of the following conditions i...

Page 31: ...e bypass tray lift sensor is not activated for 10 s after the tray lift motor turned on Upper limit is not detected within 10 s while the paper tray is lifting during paper feed The bypass tray lift s...

Page 32: ...Thermistor out of position Fusing Overheat Error 1 Software SC543 A A fusing temperature of over 210 C is detected for 5 s by the fusing thermistor This prevents the fusing lamps from switching on wi...

Page 33: ...The calibration of the double feed LED for the paper type failed reach the target voltage The print job completed without the double feed detection operating The target voltages are Normal paper 3 0V...

Page 34: ...DF 2 SC621 B The machine detected a break signal LOW from the line connection between the BCU and ADF Serial line connection unstable Harness connectors between ADF and BCU loose broken defective Comm...

Page 35: ...he error code The error code is not displayed on the operation panel Here is a list of error codes Error Problem Solution 1 Failure to certify dial up In the User Tools check the dial up user and dial...

Page 36: ...ld not exchange the handshake FDH and acknowledge FEH signals within 15 s of the operation panel reset after power on or after 2 retries there was no response to the transmission line confirmation com...

Page 37: ...ctors of the bottom plate position sensor bottom plate HP sensor bottom plate motor loose broken defective Bottom plate position sensor defective Bottom plate HP sensor defective Bottom plate motor de...

Page 38: ...efective Finisher Shift Motor Error 3K Finisher B830 SC726 D The state of the shift tray half turn sensor status did not change after the shift motor turns on Positioning roller HP sensor loose broken...

Page 39: ...loose defective Upper transport motor blocked by an obstruction Upper transport motor defective Finisher main board defective Shift Tray Exit Motor 3K Finisher B830 SC732 D The shift tray exit motor i...

Page 40: ...the gate at the home position for more than 200 ms after it was supposed to open Junction gate did not arrive at the home position within the specified time Junction gate did not leave the home positi...

Page 41: ...me position sensor harnesses are broken loose or defective 2 Stapler rotation home position sensors are defective If the motor is not running 1 Motor is blocked by an obstruction 2 Motor harness is lo...

Page 42: ...defective 3 Feed out motor defective 4 Booklet finisher main board defective Stack Plate Motor Error 1 Front Motor 3K Finisher B830 SC746 D The stack plate HP sensor front does not activate within 500...

Page 43: ...aises or lowers The 1st detection failure issues a jam error and the 2nd failure issues this SC code Tray lift motor disconnected defective Upper tray paper height sensor disconnected defective Finish...

Page 44: ...Motor blocked by an obstruction 2 Motor harness loose broken defective 3 Motor defective 4 Finisher main board defective Fold Plate Motor Error Booklet Finisher SC761 D The fold plate moves but The fo...

Page 45: ...tray The upper limit sensor did not detect the bottom plate within the specified time after the lift motor switched on to lift the bottom plate The lower limit sensor did not direct the bottom plate w...

Page 46: ...pick up roller at the home position within the specified number of pulses While the pick up roller motor was on the pick up roller HP sensor did not detect the pick up roller at the home position abo...

Page 47: ...defective Motor blocked by an obstruction Motor defective Z Fold Lower Stopper Motor Error SC781 D The lower stopper failed to leave the home position with the specified number of motor pulses Note T...

Page 48: ...me If the booklet stapler jogger motor is operating 1 Jogger fence HP sensor harness loose broken defective 2 Jogger fence HP sensor defective If the jogger bottom fence motor is not operating 1 Motor...

Page 49: ...defective Motor overload Motor defective Pre punch jogger HP sensor S301 connector loose broken defective Sensor S301 defective Pre punch jogger roller HP error 792 3 D Detected at HP after the time...

Page 50: ...or loose broken defective Motor defective Motor overload Side fence 1 HP sensor S601 connector loose broken defective Sensor defective Jogger fence 2 error 792 7 D Not detected at HP after the time pr...

Page 51: ...m 2nd detection SC error Runout press roller motor M610 connector loose broken defective Motor defective Motor overload Runout roller HP sensor S614 connector loose broken defective Sensor defective C...

Page 52: ...tor loose broken defective Motor overload Motor defective Ring switch HP sensor S706 connector loose broken defective or sensor defective Ring switch timing sensor S707 connector loose broken defectiv...

Page 53: ...lt unit rotation error 792 19 D Detected at HP after the time prescribed to leave the HP had elapsed more than 800 pulses 1st detection jam 2nd detection SC error or Not detected at HP after the time...

Page 54: ...g toward the top or The sensor did not go ON within 6 sec after the motor turned on Stacker motor M501 connector loose broken defective Motor overload Stack height sensor S502 connector loose broken d...

Page 55: ...ceived data corrupted Cycle the machine power off on Slave control board defective Download Error SC795 1 A The version of the slave control board could not be detected at power on Communication betwe...

Page 56: ...control board defective Cutter control board defective Download Error SC795 3 A The version of the firmware on the cutter control board could not be detected at power on Communication between the sla...

Page 57: ...or loose broken defective 24V Check Signal Error 1 SC795 6 A The 24V1 monitor signal of the master control board did not go off even though the front door switch was closed Relay circuit failed to go...

Page 58: ...pine Plate Upper Fan F Lock Spine Plate Upper Fan R Lock SC795 11 A A fan lock signal was detected for 1 sec during rotation of one of the upper spine plate fan motors Two retries were attempted at 12...

Page 59: ...ing operation or The grip unit did not arrive at the HP sensor Book grip motor M43 connection loose broken defective Motor defective Grip HP sensor harness loose broken defective Sensor defective Main...

Page 60: ...sensor left right S103 S100 harness loose broken defective Sensor defective Book Press Plate Sensor S104 Error SC795 21 A The trimmings buffer and book press plate did not move after the trimmings buf...

Page 61: ...F again after the motor stopped Edge press plate motor M36 connections loose broken defective Motor defective Press end sensor S87 harness loose broken defective Sensor defective Press Limit Sensor S8...

Page 62: ...rness loose broken defective Sensor defective Cutter Motor M35 Error SC795 29 A One of the following occurred The cutter blade did not move after it was moved to the rear it did not leave home positio...

Page 63: ...HP Sensor S78 Error SC795 33 A The book buffer tray did not leave the home position The book collection buffer tray HP sensor did not go OFF within 1 sec after the book buffer tray motor M39 turned o...

Page 64: ...it thermistor detected a temperature higher than 200C for longer than 1 sec Heater wire break or short circuit The gluing unit thermistor detected a temperature of less than 5C for more than 1 sec mor...

Page 65: ...limit position 1 After glue was detected above the low limit mark and 2 After 12 glue packets were supplied and 3 No glue had been recently applied Glue Surface Error 2 SC795 41 A The glue surface ha...

Page 66: ...SC795 45 A The value for the adjustment of the cover registration sensor was higher than or lower than the target range 3 2V to 3 5V Cover horizontal registration sensor small S71 defective D A conver...

Page 67: ...n defective Motor defective Book exit sensor S64 harness loose broken defective Sensor defective Book Registration Sensor S88 Error SC795 53 A A book was not detected at the book registration sensor p...

Page 68: ...k registration sensor went on when the system was turned on Book jam above the trimmer unit Slide motor M44 connections loose broken defective Motor defective Book registration S92 sensor harness loos...

Page 69: ...ppers opened and closed Signature thickness sensor S50 defective Important The SC796 series SC codes apply to the Perfect Binder D391 Glue Vat HP Sensor S73 Error SC796 1 A The glue vat HP sensor at t...

Page 70: ...spine fold plate was supposed to move from the open to the closed position Spine fold plate motor left M28 defective Spine fold close sensor left S61 defective Sensor connector loose broken defective...

Page 71: ...efective Spine Plate Open Sensor S62 Error SC796 10 A The spine plate open sensor did not go ON within the prescribed time after the spine plate motor turned on to open the plate or The spine plate op...

Page 72: ...efective TE press lever motor M3 defective Sensor or motor connector loose broken defective Jog Fence HP Sensor Front Small S12 Error SC796 15 A The front jog fence HP sensor in the stacking tray for...

Page 73: ...er motor turned on to move the rear fence Jog fence HP sensor rear large S15 defective Jogger motor rear M5 defective Sensor or motor connector loose broken defective Switchback Roller HP Sensor S11 E...

Page 74: ...Tray Overflow Sensor S6 Error SC796 22 A The stacking tray overflow sensor did not go ON within the prescribed time after the stacking tray lift motor turned on to raise the tray or The stacking tray...

Page 75: ...over guide HP sensor did not go ON within the prescribed time after the left cover guide motor turned on Cover Guide HP Sensor Left S27 defective Cover Guide Motor Left M15 defective Sensor or motor c...

Page 76: ...turned on to raise the sub grip unit or The sub grip HP sensor did not go OFF within the prescribe time after the sub grip lift motor turned on to lower the sub grip unit Sub Grip Lift Motor M17 defec...

Page 77: ...ensor connector loose broken defective Signature HP Sensor S34 Error The signature HP sensor did not go ON within the prescribed time after the signature move motor turned on to move the sub grip to t...

Page 78: ...rip HP sensor did not go ON within the prescribe time after the main grip lift motor turned on to raise the main grip unit or the main grip HP sensor was already ON when the motor started to lower the...

Page 79: ...ise the main grip unit or The main grip high HP sensor did not go OFF within the prescribed time after the main grip lift motor turned on to lower the main grip unit Main Grip Lift Motor M22 defective...

Page 80: ...grip close sensor did not go ON within the prescribed time after the rear grip motor turned on to close the main grip unit or The rear main grip close sensor did not go OFF within the prescribed time...

Page 81: ...ive Main Grip Encoder Front Sensor S52 Error SC796 52 A The front main grip encoder sensor could not be detected ON OFF within 200 ms after the front grip motor turned on to open close the main grip u...

Page 82: ...796 57 A CHECKSUM error at power on or EEPROM write error EEPROM not installed or not installed correctly EEPROM defective Inserter Drive Switch Sensor S16 Error SC796 58 A The drive switch sensor in...

Page 83: ...y EEPROM damaged Relay board defective Relay Bookbinder Communication Error SC796 62 A Communication error between relay unit and bookbinder Relay I F cable disconnected or damaged Relay unit PCB in b...

Page 84: ...ror SC797 3 B The trimmings buffer sensor left S103 did not go OFF within the prescribed time because it failed to leave the HP sensor or The trimmings buffer sensor left S103 did not go ON within the...

Page 85: ...P Sensor S90 SC797 8 B The edge press plate did not go OFF within the prescribed time after the edge press plate motor turned on to press the plate against the spine of the book or The edge press plat...

Page 86: ...o rotate the left plate through the prescribed arc for initialization Jam or overload during book rotation Book rotation motor 1 M42 defective Book rotation HP sensor 1 S91 defective Motor or sensor h...

Page 87: ...ter the blade cradle motor M40 turned on to lower it Edge press plate or cutter interfered with movement of the blade cradle Blade cradle motor M40 defective Blade cradle HP sensor S83 defective Motor...

Page 88: ...n succession during the glue replenishment cycle Glue has clogged in the vat Glue supply defective Glue level thermistor S58 defective SC797 23 B The glue level thermistor could not detect the glue su...

Page 89: ...ontal registration sensor large was out of range 3 0V to 3 5V Cover horizontal registration sensor large S72 defective D A converter defective A D converter defective Book Exit Sensor S64 Error SC797...

Page 90: ...ause the book registration sensor failed to go ON Main grip lift motor M22 defective Book exit sensor S64 defective Motor or sensor harness loose broken defective Book Exit Sensor S64 Lag Error SC797...

Page 91: ...97 43 B Note Trimming strips wider that 29 mm at the bottom and top edges 1st and 2nd cuts and wider than 41 mm at the fore edge 3rd cut will cause the trimming unit to jam Sub Grip Signature Sensor S...

Page 92: ...lapper through an arc of 50 degrees or The switchback flapper HP sensor did not go OFF within the prescribed time after the motor turned on long enough to lower the flapper through an arc of 150 degre...

Page 93: ...the rear jogger motor turned on to move the fence Jog fence HP sensor rear small S13 defective Jogger motor rear M5 defective Sensor or motor connector loose broken defective Jog Fence HP Sensor Rear...

Page 94: ...tray overflow sensor S6 went ON and the stacking tray lift motor turned on to raise the tray or The paper detection sensor at the rear of the stacking tray did not go OFF within the prescribed time wh...

Page 95: ...he sub grip size HP sensor was already OFF when the sub grip size horizontal adjustment started or The sub grip size HP sensor did not go OFF within the prescribed time after the sub grip size motor t...

Page 96: ...in grip unit to the main grip signature registration position Main Grip Lift Motor M22 defective Main Grip Press Sensor 1 S48 defective Sensor or motor connector loose broken defective Main Grip Press...

Page 97: ...OFF within the prescribed time after the rear grip motor turned on to close the main grip unit Grip Motor Rear M23 defective Main Grip Open Sensor Rear S47 defective SC798 19 B The rear main grip clo...

Page 98: ...r the front grip motor turned on to open close the main grip unit Main Grip Encoder Front Sensor S52 defective Grip Motor Front M24 defective Main Grip Encoder Front Sensor S52 defective Sensor or mot...

Page 99: ...e prescribed time after the Tray A lift motor turned on or Inserter Tray A upper tray failed to arrive at its paper feed sensor S4 within the prescribed time after the Tray A lift motor turned on Lift...

Page 100: ...d Files in the self diagnostic module kernel or root file system on the SD card have been falsified or altered Before discarding the SD card try to update the data on the card If the error occurs agai...

Page 101: ...card 802 11b Bluetooth itself cannot be could not be accessed while the machine was operating Wireless LAN card has been removed Wireless LAN Error 3 SC855 D An error is detected for the wireless LAN...

Page 102: ...up SC861 B The hard disks were detected at power on but the disks were not detected within 30 s after recovery from the energy conservation mode Cable between the hard disks and controller board disco...

Page 103: ...incorrect then the checked program cannot execute and this SC code is displayed Required program missing or incorrect Download the correct program for this machine onto the SD card SD Card Error 2 SD...

Page 104: ...e the machine was operating Format the HDD with SP5832 004 SC876 2 The log was set for encryption without the encryption module installed At power on While the machine was operating When the log encry...

Page 105: ...ective SC910 D External Controller Error 1 SC911 D External Controller Error 2 SC912 D External Controller Error 3 SC913 D External Controller Error 4 SC914 D External Controller Error 5 The external...

Page 106: ...ount failed 9 Drive does not answer command 10 Internal kernel error 11 Size of drive is too small 12 Specified partition does not exist 13 Device file does not exist Recovery Procedure 1 If the machi...

Page 107: ...y Procedure 4 If Recovery Procedures 1 to 3 fail to correct the problem replace the HDD F Gate Signal Error SC951 B When the IPU has already received the F GATE signal laser writing start trigger sign...

Page 108: ...r Ready Error SC966 B The polygon mirror motor does not reach ready status within 15 s after the copy paper is detected by the registration sensor 15 s after the write request was issued for the IPU t...

Page 109: ...on about the recently logged SC991 including the software file name line number and so on Of these two methods 1 is the recommended method because another SC could write over the information for the p...

Page 110: ...The program download from the SD card does not execute normally This SC is not logged Card installed incorrectly BCU defective SD card defective Controller board defective Power down during program do...

Page 111: ...accidental power overload These protective circuits are provided at three locations AC input Converter control points Output points Even if one or more of these protective circuits should fail the ot...

Page 112: ...Output Name Output Voltage Output Connector VccE 5 1V CN733 1p 5p Energy Save VcaE 12 0V CN734 1p 3p VccL 5 1V CN711 1p 3 1st Vcc 5 1V CN12 1p 3p Vaa1 24 0V CN713 1p 2p Vaa2 24 0V CN713 3p 6p 2nd Vaa...

Page 113: ...short circuit in an input harness or other problem on PSU C will also cause FU3 to blow and will cut all power output from the PSU Table 2 PSU Fuses and Related Power Output Interrupts Converter Outp...

Page 114: ...converter If the problem occurs in the 1st converter power to the 1st 2nd 3rd and 4th converters is interrupted If the problem occurs in the 2nd converter power to the 2nd 3rd and 4th converters is i...

Page 115: ...nal harnesses or an unexpected surge in the external power supply Overheating occurs when the temperature level of the elements in the control circuits of the converters becomes too high due to the fa...

Page 116: ...on the left You can see which system is operating abnormally by checking whether these LEDs are on or off If an LED is off the converter for that LED is defective see the above table The table below...

Page 117: ...machine off Disconnect it from the power source Allow the machine to stand at least 10 minutes before you open the PSU box door PCB A and PCB B of the PSU E are both provided with a large capacity el...

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