Dell 2330d - Laser Printer B/W Service Manual

Also see for Inspiron One 2330: Installation guide User guide Quick start guide Owner's manual Quick start guide

Contents

Dell 2330d - Laser Printer B/W Service Manual Manual pdf 48 page image

Service checksService checks which involve measuring voltages on the LVPS/HVPS (low voltage power supply/high voltage power supply board) should be performed with the printer positioned on its back side.Note: When making voltage readings, always use frame ground unless another ground isspecified. See the wiring diagram in the back of the book for more information.Controller board service checkController board service checkFRU ActionController boardassemblyWarning: Do notreplace the operatorpanel and controllerboard at the sametime. Each cardcontains the printersettings. When eitherof these cards is new,it obtains some of thesettings from the othercard. Settings are lostwhen both are newand replaced at thesame time.POST (Power-On Self Test)Note: The printer should complete POST in approximately 30 seconds.If the printer fails to display lights or activate the drive motor, fuser, or fan, then check thefollowing in order:1. Power to the LVPS/HVPSTurn the printer on and listen carefully for a click near the switch. A clicking soundverifies that the outlet and power cables are good. Absence of a clicking sound mayindicate a lack of power supplied to the LVPS/HVPS.2. Power from the LVPS/HVPS to the controller boardWith the power on, check the LED below the right lower corner of the fan. If the LEDlights up, it indicates that power is supplied to the controller board. If the LED does notlight up, proceed to the next check item.3. Cables correctly plugged, especially for the operator panelThe printer will not power-up without a functioning operator panel even with a lightedLED on the controller board.4. The controller board assemblyThe LED adjacent to J12 will be illuminated if the card is powered and good.5. The operator panelSee “Operator panel service check” on page 2-27.Verify +24 V dc input from the LVPS/HVPS.1. Turn the printer off.2. Disconnect the LVPS/HVPS cable from the controller board at J502.3. Turn the printer on.4. Verify +24 V dc on positions 6, 17, and 19 of the cable connector (LVPS/HVPS). If thereis no voltage supplied on any of these positions, turn the printer off and go to step 7.5. Verify +5 V dc on positions 1, 3, 4, 5, 11, 13 and 15 of the cable connector (LVPS/HVPS). If there is no voltage supplied on any of these positions, turn the printer off andgo to step 7.6. Turn the printer off. Check the continuity of the conductors of the cable and the cardconnector with respect to ground. Verify that pins 10, 12, 14, 16 and 18 on the cable aregrounded. Verify the same pins on the card connector side are grounded too. If there isno continuity on any of the card pins, verify that all the mounting screws are tight. Ifthere is still no connection to ground then replace the controller board. See “Controllerboard removal” on page 3-6.7. Open the LVPS/HVPS and disconnect the controller board-to-LVPS/HVPS cable atCN201.Verify continuity in each conductor of the cable. This cable is not a replaceablepart. If continuity is still not good then go to “Dead machine service check” onpage 3-24.Controller board voltage outputsTurn the printer off, and plug the LVPS/HVPS cable into J502 of the controller board. Seethe wiring diagram at the end of the manual which identifies the output voltages andgrounds for a good controller board.Turn the printer off before plugging or unplugging any connectors.2-22