I still get the partial LED at around half volume on the headunit, no gain LED reads 0.42v now
D132 Member Joined 2023 Monday at 10:35 PM #161 Monday at 10:35 PM #161 I still get the partial LED at around half volume on the headunit, no gain LED reads 0.42v now ••• More options Share P Perry Babin Member Joined 2003 bcae1.com Monday at 10:45 PM #162 Monday at 10:45 PM #162 In 1/2 protect, are the outputs of US3 still very near 0v? With the black probe on the ground terminal of the PS driver board, what is the DCV on the anode of the protect LED? On the cathode of the LED? ••• More options Share D132 Member Joined 2023 Thursday at 1:08 AM #163 Thursday at 1:08 AM #163 US3 pins 1, 4, 7 are/are close to 0v (all below 0.1v, read at black probe primary ground) Anode is 0.16v Cathode is 0v All read in half protect ••• More options Share P Perry Babin Member Joined 2003 bcae1.com Thursday at 1:46 AM #164 Thursday at 1:46 AM #164 What's the DC voltage directly across the resistor RS30 on the PS driver board? ••• More options Share D132 Member Joined 2023 Thursday at 9:35 PM #165 Thursday at 9:35 PM #165 .07v in half protect .003v in normal idle ••• More options Share P Perry Babin Member Joined 2003 bcae1.com Friday at 1:14 AM #166 Friday at 1:14 AM #166 Could you be getting light contamination that simply makes it look like it's lighting up? ••• More options Share D132 Member Joined 2023 Friday at 1:58 AM #167 Friday at 1:58 AM #167 I am 100% sure it is not I have seen it on with no lights in the room before, and i hear a very slight change in fan speed when it goes into half protect. Also it buzzes most of the time in normal idle and the buzzing goes away in half protect. ••• More options Share P Perry Babin Member Joined 2003 bcae1.com Friday at 2:10 AM #168 Friday at 2:10 AM #168 Do you see a change in the drive signal (pins 9 and 10) of the other 494 when in half protect? ••• More options Share Prev 1 … Go to page Go 7 8 9 First Prev 9 of 9 Go to page Go Show hidden low quality content You must log in or register to reply here. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link Home General Interest Car Audio 2 Monoblock Class Ds Not Working, I'm Lost
P Perry Babin Member Joined 2003 bcae1.com Monday at 10:45 PM #162 Monday at 10:45 PM #162 In 1/2 protect, are the outputs of US3 still very near 0v? With the black probe on the ground terminal of the PS driver board, what is the DCV on the anode of the protect LED? On the cathode of the LED? ••• More options Share D132 Member Joined 2023 Thursday at 1:08 AM #163 Thursday at 1:08 AM #163 US3 pins 1, 4, 7 are/are close to 0v (all below 0.1v, read at black probe primary ground) Anode is 0.16v Cathode is 0v All read in half protect ••• More options Share P Perry Babin Member Joined 2003 bcae1.com Thursday at 1:46 AM #164 Thursday at 1:46 AM #164 What's the DC voltage directly across the resistor RS30 on the PS driver board? ••• More options Share D132 Member Joined 2023 Thursday at 9:35 PM #165 Thursday at 9:35 PM #165 .07v in half protect .003v in normal idle ••• More options Share P Perry Babin Member Joined 2003 bcae1.com Friday at 1:14 AM #166 Friday at 1:14 AM #166 Could you be getting light contamination that simply makes it look like it's lighting up? ••• More options Share D132 Member Joined 2023 Friday at 1:58 AM #167 Friday at 1:58 AM #167 I am 100% sure it is not I have seen it on with no lights in the room before, and i hear a very slight change in fan speed when it goes into half protect. Also it buzzes most of the time in normal idle and the buzzing goes away in half protect. ••• More options Share P Perry Babin Member Joined 2003 bcae1.com Friday at 2:10 AM #168 Friday at 2:10 AM #168 Do you see a change in the drive signal (pins 9 and 10) of the other 494 when in half protect? ••• More options Share Prev 1 … Go to page Go 7 8 9 First Prev 9 of 9 Go to page Go Show hidden low quality content You must log in or register to reply here. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link Home General Interest Car Audio 2 Monoblock Class Ds Not Working, I'm Lost
In 1/2 protect, are the outputs of US3 still very near 0v? With the black probe on the ground terminal of the PS driver board, what is the DCV on the anode of the protect LED? On the cathode of the LED?
D132 Member Joined 2023 Thursday at 1:08 AM #163 Thursday at 1:08 AM #163 US3 pins 1, 4, 7 are/are close to 0v (all below 0.1v, read at black probe primary ground) Anode is 0.16v Cathode is 0v All read in half protect ••• More options Share P Perry Babin Member Joined 2003 bcae1.com Thursday at 1:46 AM #164 Thursday at 1:46 AM #164 What's the DC voltage directly across the resistor RS30 on the PS driver board? ••• More options Share D132 Member Joined 2023 Thursday at 9:35 PM #165 Thursday at 9:35 PM #165 .07v in half protect .003v in normal idle ••• More options Share P Perry Babin Member Joined 2003 bcae1.com Friday at 1:14 AM #166 Friday at 1:14 AM #166 Could you be getting light contamination that simply makes it look like it's lighting up? ••• More options Share D132 Member Joined 2023 Friday at 1:58 AM #167 Friday at 1:58 AM #167 I am 100% sure it is not I have seen it on with no lights in the room before, and i hear a very slight change in fan speed when it goes into half protect. Also it buzzes most of the time in normal idle and the buzzing goes away in half protect. ••• More options Share P Perry Babin Member Joined 2003 bcae1.com Friday at 2:10 AM #168 Friday at 2:10 AM #168 Do you see a change in the drive signal (pins 9 and 10) of the other 494 when in half protect? ••• More options Share Prev 1 … Go to page Go 7 8 9 First Prev 9 of 9 Go to page Go Show hidden low quality content You must log in or register to reply here. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link
US3 pins 1, 4, 7 are/are close to 0v (all below 0.1v, read at black probe primary ground) Anode is 0.16v Cathode is 0v All read in half protect
P Perry Babin Member Joined 2003 bcae1.com Thursday at 1:46 AM #164 Thursday at 1:46 AM #164 What's the DC voltage directly across the resistor RS30 on the PS driver board? ••• More options Share D132 Member Joined 2023 Thursday at 9:35 PM #165 Thursday at 9:35 PM #165 .07v in half protect .003v in normal idle ••• More options Share P Perry Babin Member Joined 2003 bcae1.com Friday at 1:14 AM #166 Friday at 1:14 AM #166 Could you be getting light contamination that simply makes it look like it's lighting up? ••• More options Share D132 Member Joined 2023 Friday at 1:58 AM #167 Friday at 1:58 AM #167 I am 100% sure it is not I have seen it on with no lights in the room before, and i hear a very slight change in fan speed when it goes into half protect. Also it buzzes most of the time in normal idle and the buzzing goes away in half protect. ••• More options Share P Perry Babin Member Joined 2003 bcae1.com Friday at 2:10 AM #168 Friday at 2:10 AM #168 Do you see a change in the drive signal (pins 9 and 10) of the other 494 when in half protect? ••• More options Share Prev 1 … Go to page Go 7 8 9 First Prev 9 of 9 Go to page Go Show hidden low quality content You must log in or register to reply here. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link
D132 Member Joined 2023 Thursday at 9:35 PM #165 Thursday at 9:35 PM #165 .07v in half protect .003v in normal idle ••• More options Share P Perry Babin Member Joined 2003 bcae1.com Friday at 1:14 AM #166 Friday at 1:14 AM #166 Could you be getting light contamination that simply makes it look like it's lighting up? ••• More options Share D132 Member Joined 2023 Friday at 1:58 AM #167 Friday at 1:58 AM #167 I am 100% sure it is not I have seen it on with no lights in the room before, and i hear a very slight change in fan speed when it goes into half protect. Also it buzzes most of the time in normal idle and the buzzing goes away in half protect. ••• More options Share P Perry Babin Member Joined 2003 bcae1.com Friday at 2:10 AM #168 Friday at 2:10 AM #168 Do you see a change in the drive signal (pins 9 and 10) of the other 494 when in half protect? ••• More options Share Prev 1 … Go to page Go 7 8 9 First Prev 9 of 9 Go to page Go Show hidden low quality content You must log in or register to reply here. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link
P Perry Babin Member Joined 2003 bcae1.com Friday at 1:14 AM #166 Friday at 1:14 AM #166 Could you be getting light contamination that simply makes it look like it's lighting up? ••• More options Share D132 Member Joined 2023 Friday at 1:58 AM #167 Friday at 1:58 AM #167 I am 100% sure it is not I have seen it on with no lights in the room before, and i hear a very slight change in fan speed when it goes into half protect. Also it buzzes most of the time in normal idle and the buzzing goes away in half protect. ••• More options Share P Perry Babin Member Joined 2003 bcae1.com Friday at 2:10 AM #168 Friday at 2:10 AM #168 Do you see a change in the drive signal (pins 9 and 10) of the other 494 when in half protect? ••• More options Share Prev 1 … Go to page Go 7 8 9 First Prev 9 of 9 Go to page Go Show hidden low quality content You must log in or register to reply here. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link
D132 Member Joined 2023 Friday at 1:58 AM #167 Friday at 1:58 AM #167 I am 100% sure it is not I have seen it on with no lights in the room before, and i hear a very slight change in fan speed when it goes into half protect. Also it buzzes most of the time in normal idle and the buzzing goes away in half protect. ••• More options Share P Perry Babin Member Joined 2003 bcae1.com Friday at 2:10 AM #168 Friday at 2:10 AM #168 Do you see a change in the drive signal (pins 9 and 10) of the other 494 when in half protect? ••• More options Share Prev 1 … Go to page Go 7 8 9 First Prev 9 of 9 Go to page Go Show hidden low quality content You must log in or register to reply here.
I am 100% sure it is not I have seen it on with no lights in the room before, and i hear a very slight change in fan speed when it goes into half protect. Also it buzzes most of the time in normal idle and the buzzing goes away in half protect.
P Perry Babin Member Joined 2003 bcae1.com Friday at 2:10 AM #168 Friday at 2:10 AM #168 Do you see a change in the drive signal (pins 9 and 10) of the other 494 when in half protect? ••• More options Share