C710 Service Manual | Full Fb2

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All Rights Reserved Disclaimer Every effort has been made to ensure that the information in this document is complete, accurate, and up-to- date. The manufacturer assumes no responsibility for the results of errors beyond its control. The manufacturer also cannot guarantee that changes in software and equipment made by other manufacturers and referred to in this guide will not affect the applicability of the information in it. Cover Duplex Front Bottom oper Hopping paper Sensor sensor sensor Centronics sensor sensor sensor sensor size SW Duplex clutch Feeder clutch Separator CU PCB. Network layer. Name of signal Direction Function 1.5.3.1 General of parallel interface nStrobe (HostClk) TO PRINTER It is a pulse to read data. Data is read by posterior end. OPC drum, and the surface of OPC drum is charged. It is transferred by MPT paper feed roller and resister roller U when the paper is fed from MPT. As for the belt unit, a transfer roller is set over under each color drum. The belt is caught and installed between the transfer roller and drum. C-ID unit DOWN. Transport belt The pattern is detected by this sensor, and the correction is operated. Toner low is detected by the toner sensor (reflect sensor) installed in the equipment. Remove the protective materials. (1) Peel off the desiccant and the protection tape (four places) on the printer. Return the paper cassette (8) Remove the stopper (orange) when pressing down the lever of the fuser unit to the main body of the printer. Multi-paper tray Set button (2) Match the manual insertion guide to the size of the paper. Power condition Note.When you do not use the printer for long time Note. If you turn off the power without properly shutting down, it may cause Please explain to the customer about the following items. However, if the printer is XPS (printer driver type)) icon with. Insert the duplex unit into the lower part on the back of the printer as far as it will go.
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Discharge any static electricity by Remove the side cover.Install the side cover. Fix the side cover with the screw. (one Note! Be careful that the font cannot be place) downloaded. Close the top cover and front cover. Insert the tab of the built-in hard disk into the slot on the printer. Note! Please refer to user’s manual for operation environment. (1) Insert the USB cable into the USB interface connector of printer. (2) Insert the USB cable into the USB interface connector of computer. Refer to user’s manual for operation environment. Prepare for Ethernet cable Note. The parallel cable is not included in printer. Provide it for special user. The Ethernet cable and Hub is not included in printer. The replacement procedure is described by removal of the parts. Please install the new parts with following the replacement procedure in reverse order. DCID Print engine. Do not oil the other spots that are not shown here. It is not necessary to inject the machine-oil during disassembling. However, please add the specified oil when you wipe the oil off. EM-30L Class C Spread MOLYKOTE (EM-30L) evenly all around on the patching parts. Bracket-Inner (Caulking) Gear-Planet-Assy. EM-30L Class C Do not spread the grease here. Spread MOLYKOTE (EM-30L) Do not spread the grease on these gears. EM-30L Class A Spread a small amount of MOLYKOTE (EM-30L) on the Holder-Regist-L patching parts. Gear-LiftUp-Z56 Link-LiftUp-L. Plate-Contact-TR Plate-Driver-PU(Caulking) Gear-Idle-Belt-Z20Z93 Grease spreading area EM-30L Class C Spread MOLYKOTE (EM-30L) evenly on the post. EM-30L Class C EM-30L Class C Spread MOLYKOTE (EM-30L) evenly on the end surface. EM-30L Class C EM-30L Class A Spread MOLYKOTE (EM-30L) evenly on the patching parts. Spread a small amount of MOLYKOTE (EM-30L) on the inside of Bearing-TR (Belt) (total 8 places on both sides). This printer contains the maintenance menu in addition to the normal operation menus.
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Select an appropriate menu in accordance with the objective of adjustment. Value Category Item (1st Line) Function (2nd Line) The menu indications are shown in English only regardless of the destination of the printer. Note! For the CU board of the C710, replace the entire EEPROM that is installed Switching from the Factory mode to the in CU using socket. For C710, password is required to enter the system maintenance menu Menu items of the ordinary self-diagnostic mode are shown below. mode. Refer to Table 5-1 (C710) Display area, upper row. Other test CANCEL key terminates print. This self-diagnostic menu item is used to switch between the Factory mode and the Shipping mode. If the SERVICE CALL 104 (Engine EEPROM Error) is displayed on the operator. Therefore, it should be switched to the Shipping mode. Memo To display the Boot Menu, entry of password is required. Default value of password. Note! Be careful not to touch the image drum terminals, the LED lens array and the LED head connectors. If the white banding, white stripe (white drop-out, light printing) in the vertical direction occurs on the print surface, clean the LED lens array. Note! Do not use the solvents such as methyl alcohol or thinner for cleaning the LED head lens because they can damage the LED head. Toner can adhere to the metal shaft located in between the fuser and the cyan image 2. Personal injuries may occur. The fuser unit gets very hot. Be very careful not to touch the fuser unit with your hands. Initializing Trouble occurs Panel display Inspection LINE Details (The mark indicates no. LINE Details (The mark indicates no lamp measure lamp message in the upper row.) Service call Feed paper. Network Varies Varies Indicates the network initialization is Error Add memory. Blink Indicates that jam has occurred in Error Re-set the fuser. Blink Indicates that the cover is open. If the RAM DIMM SERVICE CALL. Install the toner Service call The backup Turn on the power.
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CU program Illegal processing is executed After turning off Re-start the printer. Duplex Fan error inside the duplex unit. Action to be taken Check item Check work at NG Action to be taken Check item Check work at NG (1-1-5) LSI operation check. Action to be taken Check item Check work. Action to be taken Check item Check work at NG Action to be taken Check item Check work at NG (2-2-3) Check the jumping phenomena of gear tooth. (Abnormal load of the consumable item) By pressing the Help button, a method to remove the paper is displayed, remove the. Tray1 is applied here as an example. Open the Cover. Open the Cover. Paper Jam Paper Remains. Front Cover Front Cover When the above messages are displayed. (1) Open the multipurpose tray. Front cover (5) Close the multipurpose tray. Open the Cover. Open the Cover. Paper Jam Paper Remains. Top Cover Top Cover When the above messages are displayed. Pull up the jammed paper slowly while pushing the jam release lever of the fuser Lock lever of the fuser unit (Blue) unit. Check the duplex unit. Check the duplex unit. Paper Jam Paper Remains. When the above messages are displayed. (1) Hold and press down the jam release lever of the duplex print unit to open the duplex print unit cover. Action to be taken Check item. Action to be taken. Action to be taken Check item Check work at NG Action to be taken Check item Check work at NG (6-2-4) Check the system connection. Action to be taken. Action to be taken Check item Check work at NG Action to be taken Check item Check work at NG. Action to be taken Action to be taken. Toner sensor operation check method using the SWITCH SCAN function of the self-diagnostic mode. (16-1) Error caused by the consumable items. Check setting of the Check the setting items of the OKI LPR Utilities. Set the OKI LPR OKI LPR Utilities. Utilities setting items correctly. (6) Check the following from an OS standard port. Check version number of the Web browser in use.
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Recommended version is Netscape 6 and higher. Input the administrator password and open the setup screen as an administrator. A message prompting your confirmation will be displayed.How to change encryption strength with Telnet Note. Telnet cannot be used if it remains in the default setting. To change the encryption strength, Telnet must be set to Enable. The IPP print (encryption) function is supported by Windows 2000, Windows XP, Windows 2003 Server and Windows Vista only. Take an When installation of Certificate fails, the following causes are probable. If network card is initialized (to default setup) while creation of Certificate of certifying authority is in progress (during the period starting from creation of CSR up until installation of Certificate), the setup information of the Certificate is deleted. View the certificate to Other probable questionnaires are described below.Several restrictions are imposed when using Internet Explore 7. This is because security However, it has no effect on the web page function. In other countries, contact your point of purchase.Laserprodukten van klasse I worden niet als ongevaarlijk aangemerkt. The safety features of some parts may not always be obvious.Le caratteristiche di sicurezza di alcune parti non sempre sono di immediata comprensione.General Information. Use the service error codes, user status messages, user error messages, service checks, and diagnostic aids to determine the printer problem and repair the failure. Some options are not available in every country.When the sheet of paper is detected, the paper detect sensor turns off. When the sheet of paper is not detected, the sensor turns on. When a print command is sent to the printer, the paper feed clutch, attached to the paper feed roller turns on, which turns the main motor transmitting to the clutch gear magnet and the paper feed. When the paper is detected the sensor is turns off. If paper is not detected the sensor remains off.

Detecting paper level The amount of paper remaining in tray 1 is detected by the paper detect sensor. This plate detects the paper size turning on the corresponding switch.Refer to the drawing for layout of gears and rollers. In the paper feed system, transmission is switched by three electromagnetic clutches. The pins fit into the grooves of the cam. Lever 1 and lever 2 are controlled at the position shown. The carriage position pin slides toward the carriage. The OPC and carriage are positioned by the movement of the carriage position pin in the following order: After initializing or printing, the coupling shaft, detent shaft and carriage position pin slide in reverse, by rotating the coupling motor. The carriage drive motor (pulse motor) turns on to rotate the carriage. After the carriage home position sensor detects the carriage home position detect rib, the operation is performed as many times as the specified number of pulses;. A new cartridge detect sensor installed in the bottom part of the printer, allows the cartridge to be detected. The transfer belt is made of an electrically conductive resin. The toner image, when placed on the organic photoconductor (OPC) drum is transferred onto the transfer belt by an electric field. When the bottle is filled to capacity, it is detected by the waste toner bottle full sensor. The cleaner consists of the discharge roller, cleaning roller, blade and toner transport coil. At the same time the cleaning roller and discharge roller are rotated by the timing belt and gear. The cleaner lever is shifted by a pin and the cleaning roller is detached from the transfer belt. When the cleaner unit is placed inside the fuser unit, contact A contacts contact B. The circuit is then complete through the thermal fuse. The paper then passes through the transfer unit, in which the image is formed, and is fused in the fuser assembly. The paper feed roller in the printer starts rotating.

The paper is transported by the timing roller and the back page is printed. The print is transported to the timing roller in the printer through the rollers in the curved area, the skew correction mechanism and the paper feed roller. These steps are performed successively. 1-33 General Information. The duplex upper unit motor starts rotating in the reverse direction, rotating the claw gear. The gate claw rotates counterclockwise feeding the page to the paper exit roller. When the trailing edge of the page passes through gate claw 2, gate claw 2 is rotated by the gate claw spring until the gate claw lever touches the stopper, switching to reverse paper exit mode. At this time, the duplex lower unit motor rotates in the normal direction. After the sensor detects the paper, for a specified time, the motor turns off and the print is stored. The duplex lower unit reverse motor supplies drive to the duplex rear unit and tray through gear 18Z. The page is brought to the opposite side of the skew correction mechanism in the duplex lower tray unit by this inclination for the preparation of skew correction. Always use the hand grips on the side of the printer and be sure your fingers are not under the printer when you set the printer down. Go to the “OPC Drive Service Check” on page 2-66. Replace the engine board assembly. Go to the “Engine Board Assembly Removal” on page 4-19. 953 NVRAM Indicates the NVRAM failed the CRC check. Replace the Failure engine board assembly. Replace the DRAM SIMM. If this does not fix the problem, replace the controller board assembly. Go to the “Controller Board Assembly Removal”. Go to the “Fuser Drive does not turn on and Contact Cam System Service Check” on page 2-53. 994 Engine An engine EEPROM error has been detected. EEPROM Error Service Manual. Power Saver When your printer is in When Power Saver power saver mode, the displayed, you can: message. Users can now change the printer default settings from the operator panel.
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Disabled Menu Menus have been locked, or disabled. Enabled Menu Menus have been unlocked.Resetting the The printer is deleting any Printer print jobs in progress and restoring all print settings to the user defaults. Flushing Buffer The printer is flushing corrupted print data and discarding the current print. Defragmenting The printer is performing Do not turn the printer off Flash the defragmentation while this message is operation on flash memory. Insert the tray indicated (tray 1, 2, or 3). This message cancel the delete warns the user this operation. This message usually indicates that too To enable Resource Save much memory is allocated after you get this message, for one or more of the. The printer Held Jobs may be Print and Hold operation starts to free memory by Lost.Some data may memory to print than what not print or may not print you have installed in your correctly. Downloaded store in flash memory.Turn the printer no longer responding. The printer the port has been disabled discards the data sent to the from the parallel buffer parallel port. You must install a different disk before you can perform any disk functions. 62 Disk Full There is not enough Press to clear the. If you do not printing. The fuser have the fuser kit, order it exhausted intervention now.Close any open covers and press Go to clear the message. Service Check” on page 2-65. Operator panel - Display is blank. Go to the “Operator Panel Service Printer sounds 5 beeps. Go to “Random Marks Service Check” on page 2-90. Print quality - Toner on backside of Go to “Toner on Backside of Page printed page. Service Check” on page 2-91. Print quality - Vertical black bands Go to “Black, Color Lines or on edge of copy. Service Check” on page 2-65. Operator panel - display is blank Go to the “Operator Panel Service and the printer beeps five times. Checks” on page 2-106. Media fails to pass thru from the Go to the “Options Service lower attached paper tray option Checks”.

Blank page Go to the “All Blank Page Service Check” on page 2-81. Light print Go to the “Low Image Density Service Check”. Black or color spots Go to the “Black or Color Spots Service Check” on page 2-84. Scratch marks parallel to paper Replace the fuser assembly. Go to feed direction “Fuser Unit Removal”. Go to “Setting Configuration ID” on page 3-20.Action Gear B1 Check PF gear B1, and gear 4 to be sure they Gear 4 turn. If any problem is found, repair as necessary. PF Bushing Clutch Gear Check all the MPT paper feed gears for signs of Paper Feed. Action Media Be sure the media meets specifications. Paper Transfer Check the sheet bypass paper feed roller and Roller paper transfer roller for contamination, wear or anything that would cause the rollers to feed Sheet Bypass improperly. Action OHP Detect Check the inner front cover OHP detect reflection Reflection Plate plate to be sure it is not damaged or missing. Clean the plate, if dirty, or replace if damaged or missing. Action DPT Pad The DPT assembly design helps prevent double Assembly feeding from the MPT tray. Check the DPT assembly for proper operation and check the pad to be sure it is not worn, damaged or missing. Repair as necessary. Check the voltages on the motor. Engine Board Carriage unit motor connector (M3).If Engine Board incorrect, replace the following parts in the order shown: Cable 1. The coupling does not turn. B 990 Service Engine Error. The coupling motor turns. C 991 Service Engine Error. Indicates a problem with the coupling on and off sensors. Note: Verify correct operation of the mechanical parts of the coupling unit by manually resetting the coupling unit. Note: Observe the coupling operation as the printer is performing the self test and the engine is warming up. Determine when the failure occurs. Action Motor Mounting Check the parts associated with the coupling Stay A operation for signs of excessive wear, breakage or Assembly.

Note: This error displays when a problem exists with the coupling on and off sensors. The same error displays for either sensor.These should be open anytime the cartridge, fuser or front covers are not latched properly.If the mechanism does not operate properly or activate any of the switches, repair as necessary. Action Printhead Erase Check the cable to be sure it is installed properly Lamp from CN14 on the engine cable to CN750 on the erase lamp assembly. Note: If selected, turn Power Saver off. Error codes 920, 921 and 922 may display for a cold fuser failure. A 920 fuser error caused by low line voltage may be cleared by turning the printer on and off. The sensor activates when the fuser drive motor turns the cam disk. If the fuser drive motor does not turn on, or the drive parts are not operating, go to A. Action Fuser Assembly Check the fuser assembly internal drive gears for binding, or broken or worn teeth. If a Fuser Drive Motor problem exists, repair or replace the fuser assembly.Action Cam Sensor (PH16) Be sure the cam sensor is mounted correctly and locked into place.Action Contact Cam Check the solenoid for proper operation, Solenoid making sure it picks during POR cycle. CRF Cable Disconnect the solenoid and check the resistance on the solenoid cable. Error Codes 923 and 924 may display for a hot fuser failure. Error Code 924 indicates the engine board has detected an open in the thermistor circuit. This error code displays when leakage is detected in the print cartridge, high voltage contacts (grid blocks 1 and 2) or HVPS.Action Transfer Belt The transfer belt sensor is a LED Optotransistor Position Sensor pair that detects the belt by sensor (PS200) (PS200) reflecting light from the LED to the belt in the ITM. Main Fan Manually spin the fan and verify it rotates freely.With the customer’s permission, if available, try new print cartridges. A new cartridge contains a reflector attached to the new cartridge detect lever, mounted inside the cartridge.

If the operator panel operates properly, except for a PEL or a few PELs missing or broken, run the “LCD Test”. If incorrect, replace the FRUs in the following order: Interconnect 1. Operator panel assembly interface board Board 2. Controller board COntroller Board Operator Panel Buttons Service Check Note: Before continuing with this service check, go to the “Button Test”. With the customer's permission, install a new print cartridge. If the print cartridge fails to increment the OPC in the cartridge, go to A. Action Paper Exit Sensor Check the paper exit sensor flag and flag spring Flag for proper operation. When a 201 paper jam message displays, the media has not completely passed over the paper pass sensor. It Clutch Assembly should measure between 135 and 175 ohms. (CL01) Also check from the case of the clutch to either winding. It should measure infinity. If incorrect for either, replace the clutch assembly. Note: The registration clutch cable, (two blue wires), connect to the CRF cable, (violet and orange), near the clutch assembly. Note: This symptom may require replacement of one or more customer replaceable units, designated as supplies or maintenance items, which are the responsibility of the customer. With the customer’s permission, if available, try a new ITM or fuser. Action Fuser Assembly Fuser assembly available: Paper Exit Sensor Try a new fuser assembly before proceeding Flag and Spring with this service check. If the base printer operates incorrectly, go to A. If the printer operates correctly, reinstall the options and go to B. Note: If the AC input cables attached to CN404 (A) or CN405 (B) are unplugged from the LVPS assembly, be sure they are reinstalled correctly. Remove and continue to blow replace one FRU at a time until you find the after being failing component. Duplex Option If a duplex option is installed, remove and reinstall the option and check for correct operation.

Do not remove any screws from the printhead cover assembly, as this might cause internal contamination or damage. 931 Error Code: This error may be caused by a failure with the HYSNC signal to the printhead or a malfunction within the printhead. Pin 1 (orange lead) to connector CNLS2 on the Printhead to printhead and the yellow jumper from S3 Pin 2 to Engine Board S4 Pin 2. Be sure these cables are connected Cable properly and are not damaged. Try a Transfer Unit new ITM if available. (ITM) Transfer Roller Note: The transfer roll is spring loaded against the inner cover so that it properly contacts the transfer belt in the ITM unit. Slick or coated papers may also cause background.Banding is primarily due to a variation in the speed of the paper as it feeds through the printer, especially in the development and transfer process. With the customer's permission, you may need to install an ITM unit or a print cartridge. High Voltage The printer may produce print. Power Supply (HV1) Replace parts as necessary. Fuser Frame Resistor Board (PWB-R1) Printer Main Engine Board (PWB-A) Action Print Cartridges Run the print quality tests pages and determine the failing print cartridges producing light print or low image density. Intermediate Replace any toner cartridges matching the Transfer Unit corresponding color problems. Advise the (ITM) customer the cartridge or cartridges should be replaced. Paper Guides Be sure the paper is properly positioned against the paper guides, in the paper tray. Toner on Backside of Page Service Check Note: Loose toner, in the paper path, carried on the backside of paper, may cause this condition. The cartridge may also be low on toner and may need replacing. Intermediate Try a new ITM unit. Transfer Unit (ITM) Transfer Roll. Image Transfer The printer may produce poor image transfer. Roller Replace the listed parts in the following order: High Voltage 1. Image transfer roller Power Supply 2.

Replace the listed parts in the following order: Fuser Frame Resistor Board 1. Printhead unit (PWB-R1) 2. The test isolates the printer from the serial cable and host, displaying failure information for approximately three seconds. Action Developer Drive Incorrect operation of the developer drive Assembly assembly can cause the printer to display a 929 error code. Action Transfer Roll Check the transfer roll for signs of toner buildup, Assembly surface damage to the roll, or oil or other contaminants on the surface of the roll. If a 230, 231or 232 paper jam message displays, go to the “Duplex Unit Option Service Check” on page 2-120. Lift up on the bracket and sensor lever and carefully remove tray 1. Action Paper Detect Check the paper feed frame, paper detect. Action Paper Tray 1 Check tray 1 for anything that might cause the paper to jam in the tray, or prevent media from exiting. Action Paper Pass Check the paper pass sensor flag and spring for Sensor Flag correct operation and broken or loose parts. If a problem is found, repair as necessary. When media in Tray 1 reaches 50 or less sheets, the paper detect lever turns on the paper detect sensor and displays Load Paper Tray Action Tray 1 Rear Paper Check the rear paper guide in tray 1 for correct Guide installation and signs of damage to the paper. When media in tray 1 reaches 50 or less sheets, the paper detect lever turns on the paper detect sensor and displays Load Paper Tray Action Paper Sensor Check the paper detect sensor lever (flag) in the Detect Lever paper feed unit assembly for correct operation (Flag) Flash Memory Option(s) Service Check Run a copy of the test page and verify the option you are checking is listed. When a problem is suspected, either with the hard disk system board or the hard disk, run the “Quick Disk Test” on page 3-16. Note: Do not force tray x from the base unit, as damage to the paper detect sensor lever, or pick up roller bracket assembly may occur.

Note: If the detect board for the tray x cable (detect board to interconnect board), LVPS, LVPS fuse, interconnect board, option cable (OP), engine cable (OP) or engine board are failing, this message may display. Action Paper Feed If the motor exhibits excessive noise or vibration, Motor either the paper feed motor, the cable OM, or the option interconnect board assembly is failing. Be sure Paper Detect that it is operating properly. Replace the lever Sensor Board (flag), if necessary. Action Paper Tray x Check Tray x for anything that might cause the paper to jam in the tray, or prevent the media from exiting. If problems are found, repair as necessary. Middle Roller Shaft Middle Roller. H Paper Jam 24x displays, media is detected and fed from tray x and paper jams over the paper pass sensor in the base printer. Action Paper Pass Check the paper pass sensor flag and spring for. Action Paper Pass Check the paper pass sensor flag and spring for Sensor: correct operation and broken or loose parts. Action Tray 1 Rear Check the rear paper guide in tray 1 for correct Paper Guide installation and signs of damage to the paper size detect flag. If the flag is broken, replace the rear paper guide. Replace the pad if necessary. Duplex Unit Option Service Check Be sure the paper guide assembly bridge block is present and correctly installed. The printer does not compete POR. Action Duplex Option Be sure the duplex option is correctly installed and the autoconnect connectors are connected properly. Be sure that cable ADM is connected to CN901 on the option controller board. If no problem exists with any of the cables in the autoconnect system, replace the FRUs in the following order: 1. Action AC Power Cord Duplex only installed.Paper is jammed in upper unit of duplex assembly when printing in simplex mode. The printer is operating properly. Selection Guide (Gate Claw) Interlock Switch Check continuity of the microswitch and cable.

Paper is jammed in upper unit of the duplex assembly, when printing in the duplex mode. The printer is operating correctly. Action Upper Cover Be sure the latch on the upper cover is correctly located in the opening in the paper exit guide. Close door message displays when duplex option installed and all doors and covers on the duplex are closed.The printer does not complete POR. Action Lower Duplex Check the voltages on the duplex lower unit Unit Reverse reverse sensor on CN907.Assembly, Rear The holder should be inclined about 3 degrees. Go Door “Skew Correction”. The following diagnostic aids can be initiated at POR by pressing certain button sequences. These tests are also available in Diagnostic Mode. Checksum failure detected in the emulation header or emulation file. Error Code 965: Download Emulation Outdated. Time stamps indicate the download emulation and RIP code are incompatible. To help resolve Download Emulation problems the following steps are necessary to instruct the printer to POR without activating any download emulations. When entering the Print Registration menu, you may select the TOP Margin for Tray 2, Tray 3, and Duplex. If you select LEFT Margin, you must select the source and resolution.The value is displayed in the operator panel. Each of the installed options is listed in the following order in the menu: For each input source selected, the following choices are available: Single (prints the Print Test Page once). If continuous is selected, Return or Stop can be selected to cancel the test.) Note: The power indicator blinks while the page is printing. Each parallel signal is tested.To run the ROM Memory Test: 1. Select ROM Memory Test from the menu. P and F represent the same numbers for DRAM. The power indicator blinks indicating the test is in process. The test writes patterns of data to SDRAM to verify that each bit in memory can be set and read correctly. To run the SDRAM Memory Test: 1. Each signal is tested.