HP Designjet 250c Service Manual - Page 162

330 350C EEROM Model ID Configuration Procedure for the DesignJet 330 and 350C The EEROM model ID configuration procedure only needs to be carried out if: D A preĆconfigured board is being reused. D The current board is incorrectly configured to the wrong model ID. D The plotter shows an unconfigured model ID system error (Steady 135). It is very rare that these situations will ever occur. Configure the plotter model ID as follows: 1 Remove the left cover ' page 6Ć10. 2 Disconnect the media motor encoder cable from the main PCA (connector ENC X). 3 Turn the plotter ON in Service Mode 1. 4 Hold the ALT key down and press the Deconfiguration Mode key. 5 Once in Deconfiguration Mode, the first and second LED columns should light up. ALT Deconfiguration Mode 6 Using a suitable tool, shortĆcircuit pins 1 and 2 (the first two pins on the right) of the media motor encoder connector (ENC X). The second and third LED columns should light up as you shortĆciruit the two pins. 7 Once you have shortĆcircuited the two pins, the first and second LED columns should light up again. Shift 8 Press the Shift key to exit the Deconfiguration Mode. 8Ć28 Troubleshooting C4699Ć90000