20 Most Recent WYSE WY-150 AMBER 80 (90098307) Network Terminal Questions & Answers

Hi and welcome to FixYa,

A few ideas you may want to consider/try:

• modify/replace (with a slightly higher value) the dropping resistor supplying the horizontal drive transistor through the HD transformer;
  
• substitute the HD transistor with a higher rating/capacity;
  
• select a substitute HD transistor in TO-126 packing that would allow a small heatsink to be attached.
  

Unfortunately, no available schematics for the 150 on my end, but on others that use a 2SC1213 as the HD transistor, replaced  the 39 ohms dropping resistor with  47 ohms

Good luck and thank you for asking FixYa.

Turn Off the computer, now as soon as you hit the power button, keep on holding "Alt" key & keep on tapping "F10 key,ie: Alt+F10, it will open the recovery console ,select full factory restore and follow on screen instruction. (Note:this will erase all datas on the computer)

Hope this helps

http://bitsavers.org/pdf/wyse/WY-60/WY-60_Maintenance_Manual.pdf

May see if Dell can provide it to you. https://www.dell.com/support/contents/us/en/04/category/Contact-Information?~ck=mn

Did you try Wyse as the password? https://www.dell.com/support/contents/us/en/04/article/Product-Support/Self-support-Knowledgebase/Dell-Subsidiaries/wyse

http://www.wyse.com/support/authorized-service-centers unless you are a electrician don't risk doing it yourself in case something goes wrong and someone gets injured or worse then http://www.wyse.com/support/warranty-and-RMAs/spares

Its asking for a password