T
tubejay
Guest
BackHand,
I had a couple similar problems. Here's some ideas that might help:
For the 5db down in one channel, check around your 5532's on the inputs and outputs. Make sure you don't have a solder bridge between pins 1 and 2, or 2 and 3. If you do, it will be down about five dB in one channel.
I'm not sure why your compressor controls wouldn't work. When you take the unit out of bypass, does the meter slam all the way to the top of the scale, or does it just do nothing. When you take it out of bypass, does any sound come out, or does it just sound the same as when it's bypassed? Are you positive that you've got the bypass switch wired up correctly? Sometimes it helps to remove the bypass switch and just hard wire it into compression mode, to make sure that it's not the switch. Is it possible that there would be a solder bridge between the meter input and one of the pins that connect the controls board to the main pcb?
In the end what helped me troubleshoot my problem the best was to take a look at the pcb etch .pdf file, and double check to make sure that you didn't accidentally bridge any points that weren't intended to be bridged. That's how I found the little piece of solder on my 5532 that was causing it to be down about 5db in one channel. Sometimes it's hard to tell on these little pcbs if something should be bridged, or should not. It's a really easy thing to miss.
Just keep searching, eventually you'll find the problems if you're persistent.
Jay
I had a couple similar problems. Here's some ideas that might help:
For the 5db down in one channel, check around your 5532's on the inputs and outputs. Make sure you don't have a solder bridge between pins 1 and 2, or 2 and 3. If you do, it will be down about five dB in one channel.
I'm not sure why your compressor controls wouldn't work. When you take the unit out of bypass, does the meter slam all the way to the top of the scale, or does it just do nothing. When you take it out of bypass, does any sound come out, or does it just sound the same as when it's bypassed? Are you positive that you've got the bypass switch wired up correctly? Sometimes it helps to remove the bypass switch and just hard wire it into compression mode, to make sure that it's not the switch. Is it possible that there would be a solder bridge between the meter input and one of the pins that connect the controls board to the main pcb?
In the end what helped me troubleshoot my problem the best was to take a look at the pcb etch .pdf file, and double check to make sure that you didn't accidentally bridge any points that weren't intended to be bridged. That's how I found the little piece of solder on my 5532 that was causing it to be down about 5db in one channel. Sometimes it's hard to tell on these little pcbs if something should be bridged, or should not. It's a really easy thing to miss.
Just keep searching, eventually you'll find the problems if you're persistent.
Jay
![Electronics Soldering Iron Kit, [Upgraded] Soldering Iron 110V 90W LCD Digital Portable Soldering Kit 180-480℃(356-896℉), Welding Tool with ON/OFF Switch, Auto-sleep, Thermostatic Design](https://m.media-amazon.com/images/I/41gRDnlyfJS._SL500_.jpg)
