Menu

Show posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.

Show posts Menu

Messages - CBD

#1
Does anyone have any further advice or recomendations on this?
any help would be appreciated

#2
OK now it will power up and even play without the clip light staying on.
But that same channel that had the fried parts does clip well before the "a" channel still.
I did replace the resistor(r71) so at least I am not frying anything now.
It sounds a little like it is rising and falling in volume when I try just that channel.
#3
Any more thoughts on this?
I will start with replacing R71 -but I am not sure how to properly check the transistors
#4
Yeah I am getting NO reading on R71
#5
Thanks! I appreciate any help as I am Kinda new at repairs.
But a Quick learner.
#6
Quote from: J M Fahey on August 11, 2011, 10:37:00 PM
Too tired now, going to sleep, but be warned that toast parts are often dead ... and perfect looking ones too.
You did right so far but sure have more bad parts, but don't worry, we'll find them .
I guess you have at least a decent multimeter and a good solder sucker/pump.
Search (here or Google) for "bulb lamp limiter" and build one, it's a simple fixture which will help you.
Have a couple lightbulbs handy, 40 and 75W are fine.
Good night.

EDIT: just go to http://www.ssguitar.com/index.php?topic=2093.0

One other thing I noticed when I powered up the amp before....The clipping light stayed on on the right channel even with no signal.  (the same channel that fried the parts
#7
I made the Light Bulb Limiter and it turned out fine.
#8
Thanks for the help.
I will make one right away
#9
One side works fine but when I plug the speaker cord to the speaker out on the other side it fries  R87,R88.
I originally replaced R87,R88,R89, D36 and TR27 all with the correct values.( they were toast)
The TR27's outer casing was broke so I am not sure if it was bad but I replaced it none-the-less
Something made them blow originally but I can't see anything else that looks bad.
I do not have a scope....and short of testing everything....is there any tell tale sign that points to something that I should focus on?