Reset Cisco Catalyst 2950 Switch

Original Article: https://supportforums.cisco.com/t5/lan-switching-and-routing/2950-24-username-password-recovery/td-p/1774008

Step-by-Step Procedure
Follow the password recovery procedure below.

Attach a terminal or PC with terminal emulation (for example, Hyper Terminal) to the console port of the switch.

Use the following terminal settings:

Bits per second (baud): 9600


Data bits: 8


Parity: None

VIZ WP-705A Power Supply Troubleshooting

Original article can be found here: 

DISPLAY BOARD

1. Blinking Display: Check power supply +5V.  Check U215 thru U218.

2. Improper readings: Check power supply +5V.  Check regulator U213 and U214 for normal operation.  Check voltages on U217/218.

3. Won't Zero: Check voltages on U217/218.  Check R227/228.  Check +5V supply.  Check C210/211.

4. No display but power supply has output: Check power supply +5V.  Check on-board regulators U213/214 for normal operation.  Check continuity of all VCC paths to active chips.

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