Author Topic: HP 8110A with faulty display GU 256 x 64  (Read 219 times)

0 Members and 1 Guest are viewing this topic.

Offline Tracker

  • Regular Contributor
  • *
  • Posts: 81
  • Country: gb
HP 8110A with faulty display GU 256 x 64
« on: November 22, 2019, 07:30:39 pm »
Hello folks,
I have a faulty a HP 8110A 150 MHz Pulse generator.
But its display is blank, it appears someone attempted repair.

On the display board I can see the Power transistor and Ram chip were replaced.
I can measure +5 vcc on the main input.
It also generates -18v, +15v and +125v which all seem appropriate.
But the display docent show any sign of life.


No diagrams seem to be available.
Does anyone have knowledge of these displays, what should I be looking for to see if the actual display tube is faulty?

Thanks



« Last Edit: February 29, 2020, 09:08:44 am by Tracker »
 

Offline tagchen

  • Contributor
  • Posts: 21
  • Country: de
Re: HP 8110A with faulty display GU 256 x 64
« Reply #1 on: January 08, 2020, 11:28:33 am »
I have paper for HP 8114A 100V/2A and a defect 8114A, but display is working.
I can some measure for help?

 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf