Welcome, Guest. Please login or register.
January 21, 2018, 02:32:35 PM
Home Help Search Login Register
News: Ceriatone Forums are up and running!!!
 
Guests please register
Note: If you want to help you can donate to keep the forums alive.










Do you want to advertise on this forum ? Send me a private message.



 


Amplified Parts
+  Ceriatone Forum
|-+  British Style
| |-+  JCM 800 2203, 2204, 2550, 2555
| | |-+  Troubleshooting a 2203
« previous next »
Pages: [1] Go Down Print
Author Topic: Troubleshooting a 2203  (Read 515 times)
mack
Newbie
*
Offline Offline

Posts: 1


View Profile
« on: April 14, 2016, 05:19:04 PM »

hi all,

new to the forum but I took part in a group build of a 2203 about 8 years ago. The amp was working great at the time but life happened and it ended up in the closet for about 6 years. Im a woodworker by trade so this past winter I built a mahogany box for the head and this weekend I built a speaker cab. plugged it in today for the first time in 6 years and no sound. To make a long story short, the power tubes dont glow but im reading 530V across pins 3 4 and 6 which seems a bit high. I am not however reading anything across pins 1 and 8 which should read 35mV according to my literature. Its been along time since I wired it so obviously nothings fresh and Im basically looking for a bit of direction with troubleshooting it. preamp tubes glow and read proper voltage and both fuses check for continuity. Any help on what to check would be greatly appreciated.

- Mack
Logged
Pages: [1] Go Up Print 
« previous next »
Jump to:  


Login with username, password and session length

Powered by MySQL Powered by PHP Powered by SMF 1.1.12 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!

CeriaTone Forum is not afiliated with Ceriatone Amplifications. The CeriaTone and name, logo and related trademarks and service marks, owned by CeriaTone. , are registered and/or used in the U.S. and many foreign countries. All other trademarks, service marks, and trade names referenced in this site are the property of their respective owners.