![Film-Tech Cinema Systems](http://www.film-tech.com/images/masthead.jpg) |
|
Home
Products
Store
Forum
Warehouse
Contact Us
|
|
Author
|
Topic: ORC VS-250-NS Amplifier Manual
|
|
Don Sneed
Master Film Handler
![](http://www.film-tech.com/ubbmembers/955.jpg)
Posts: 451
From: Texas City, TX, USA
Registered: Aug 2001
|
posted 05-20-2010 06:24 AM
when I was a RCA tech we had to fix these all the time, I sat in a hotel room repairing these, I had a test jig I made to power it (50vac), input & output test point, volume copntrol, & a spk connection. Most problems are the 10mfd & 100mfd axle lead capactiors, they normally open causing no sound, & the fuse link wire (most people don't know about that). The best way to see if the cap is open is to clip lead another cap on the suspected bad one, this works 90% of the time & I have repaired hundreds of these over the years & use to carry capacitors in my took kit just for these amps, I found these amps dead with no sound or weak sound, it all goes back to the 10mfd caps....good luck
| IP: Logged
|
|
|
|
All times are Central (GMT -6:00)
|
|
Powered by Infopop Corporation
UBB.classicTM
6.3.1.2
The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion
and agrees to release the authors from any and all liability.
|
|
|
|