Mikeyrad
New member
- Joined
- Mar 27, 2013
- Messages
- 4
Hey guys, been a lurker for some time and finally wanna post!
Anyway, i got a vla 2 for pretty cheap and so i decided to start modding it to see how great i can make this comp sound. So i open her up and get to work. Well the first 2 opamps i remove dont come off to easy for some reason and i end up breaking off a few pads!(ive never had so much trouble before removing these before!) So anyway, i read the datasheets for the opamps and see how and where i need to fix this so it will still work. Then i socket them and put in new ones. I did both channels at once, and really only struggled with the first 2. Forgot to mention they were NE5532 and i replaced them with OP275. So i turned this thing on today to see if anything would blow, ch.2 works and ch.1 will not pass audio! While it was powered on i started feelings around and noticed one of the resistors (27ohm 1w) was hot! I looked at the VLA1 schemo and determined the resistor is part of the power supply. Btw ch.2 resistor was not hot.
So im trying to locate a schemo for the VLA2 and cant find it anywhere, does anybody have it? Can anybody shed some light on why that resistor is getting hot? Sorry for the rambling and thanks for the help!
Anyway, i got a vla 2 for pretty cheap and so i decided to start modding it to see how great i can make this comp sound. So i open her up and get to work. Well the first 2 opamps i remove dont come off to easy for some reason and i end up breaking off a few pads!(ive never had so much trouble before removing these before!) So anyway, i read the datasheets for the opamps and see how and where i need to fix this so it will still work. Then i socket them and put in new ones. I did both channels at once, and really only struggled with the first 2. Forgot to mention they were NE5532 and i replaced them with OP275. So i turned this thing on today to see if anything would blow, ch.2 works and ch.1 will not pass audio! While it was powered on i started feelings around and noticed one of the resistors (27ohm 1w) was hot! I looked at the VLA1 schemo and determined the resistor is part of the power supply. Btw ch.2 resistor was not hot.
So im trying to locate a schemo for the VLA2 and cant find it anywhere, does anybody have it? Can anybody shed some light on why that resistor is getting hot? Sorry for the rambling and thanks for the help!