Got this 3200 hifonics and pins 6,7,16 and 17 have continuity. To the rail. Having trouble finding bad components. Any suggestions?
Continuity is a useless term unless you're checking a fuse or an incandescent lamp. Don't use it. Give resistance or an exact reading with the meter on diode-check.
Are these on the driver board out of the amp or on the pins on the main board?
It appears that several of the vias in the main board have been badly damaged. ChipQuik can help prevent this.
Two 21844 driver board?
Are these on the driver board out of the amp or on the pins on the main board?
It appears that several of the vias in the main board have been badly damaged. ChipQuik can help prevent this.
Two 21844 driver board?
When you use CQ, add new (regular solder and desolder (doesn't need to be 100%). Then add the CQ (with its flux). After the CQ is on every header terminal, touching only the tip of the terminal, work the tip of the terminal in a small circle to get the CQ to work down into the connection. It will be much more effective that way.
It's with the driver board out... OK but are the readings (in ohms or on diode-check) on the main board or on the pins of the driver board on the bench.
Please type FAR more than you think you need to fill in the blanks (information). Leave a blank line between every sentence you type. I don't mind trying to help but you MUST do your part.
It's with the driver board out... OK but are the readings (in ohms or on diode-check) on the main board or on the pins of the driver board on the bench.
Please type FAR more than you think you need to fill in the blanks (information). Leave a blank line between every sentence you type. I don't mind trying to help but you MUST do your part.
Reading in diode check it’s .001 between them all. It’s .8 ohms between pins 6 and 7.
.8 ohms between 6 and 16
I ohms between 6 and 17
Pin 7 to 16 is 1.7 ohms
Pin 7 to 17 is .8 ohms
.8 ohms between 6 and 16
I ohms between 6 and 17
Pin 7 to 16 is 1.7 ohms
Pin 7 to 17 is .8 ohms
Are these readings on the pins of the driver board out of the circuit?
Are they the readings on the pads of the main board with the driver board out of the circuit?
Are they the readings on the pads of the main board with the driver board out of the circuit?
That's normal. You're reading across the shunt resistors, via the inductors L201 and L202. Lift one terminal of the inductors and you're likely to see the low reading go higher.
See attached.
See attached.
Thanks. Should have asked before I pulled the card. I was looking at that same schematic down d class type 8. I’m trying
