r220: .132v r221: .018v
F fongman Member Joined 2009 2009-11-07 4:35 am #41 2009-11-07 4:35 am #41 r220: .132v r221: .018v ••• More options Share P Perry Babin Member Joined 2003 bcae1.com 2009-11-07 4:43 am #42 2009-11-07 4:43 am #42 With the voltages you posted, it appears that Q203 is defective. You need to replace Q202 and Q203 together from the same batch of parts. ••• More options Share F fongman Member Joined 2009 2009-11-07 5:04 am #43 2009-11-07 5:04 am #43 Are the parts for these MMBT3904L and MMBT3906L? ••• More options Share P Perry Babin Member Joined 2003 bcae1.com 2009-11-07 5:09 am #44 2009-11-07 5:09 am #44 MMBT5088L according to the schematic. If you have the 3904 on hand, they may work well enough to allow further troubleshooting. ••• More options Share F fongman Member Joined 2009 2009-11-07 5:30 am #45 2009-11-07 5:30 am #45 I don't have any of them, i will get some tomorrow. I hope the shop here have some? ••• More options Share F fongman Member Joined 2009 2009-11-08 5:59 am #46 2009-11-08 5:59 am #46 Q202 and Q203 was replace and now the amp is working fine. Thank you Perry, i would of not gotton this amp to work without you. ••• More options Share Prev 1 2 3 First Prev 3 of 3 Go to page Go Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link
P Perry Babin Member Joined 2003 bcae1.com 2009-11-07 4:43 am #42 2009-11-07 4:43 am #42 With the voltages you posted, it appears that Q203 is defective. You need to replace Q202 and Q203 together from the same batch of parts. ••• More options Share F fongman Member Joined 2009 2009-11-07 5:04 am #43 2009-11-07 5:04 am #43 Are the parts for these MMBT3904L and MMBT3906L? ••• More options Share P Perry Babin Member Joined 2003 bcae1.com 2009-11-07 5:09 am #44 2009-11-07 5:09 am #44 MMBT5088L according to the schematic. If you have the 3904 on hand, they may work well enough to allow further troubleshooting. ••• More options Share F fongman Member Joined 2009 2009-11-07 5:30 am #45 2009-11-07 5:30 am #45 I don't have any of them, i will get some tomorrow. I hope the shop here have some? ••• More options Share F fongman Member Joined 2009 2009-11-08 5:59 am #46 2009-11-08 5:59 am #46 Q202 and Q203 was replace and now the amp is working fine. Thank you Perry, i would of not gotton this amp to work without you. ••• More options Share Prev 1 2 3 First Prev 3 of 3 Go to page Go Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link
With the voltages you posted, it appears that Q203 is defective. You need to replace Q202 and Q203 together from the same batch of parts.
F fongman Member Joined 2009 2009-11-07 5:04 am #43 2009-11-07 5:04 am #43 Are the parts for these MMBT3904L and MMBT3906L? ••• More options Share P Perry Babin Member Joined 2003 bcae1.com 2009-11-07 5:09 am #44 2009-11-07 5:09 am #44 MMBT5088L according to the schematic. If you have the 3904 on hand, they may work well enough to allow further troubleshooting. ••• More options Share F fongman Member Joined 2009 2009-11-07 5:30 am #45 2009-11-07 5:30 am #45 I don't have any of them, i will get some tomorrow. I hope the shop here have some? ••• More options Share F fongman Member Joined 2009 2009-11-08 5:59 am #46 2009-11-08 5:59 am #46 Q202 and Q203 was replace and now the amp is working fine. Thank you Perry, i would of not gotton this amp to work without you. ••• More options Share Prev 1 2 3 First Prev 3 of 3 Go to page Go Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link
P Perry Babin Member Joined 2003 bcae1.com 2009-11-07 5:09 am #44 2009-11-07 5:09 am #44 MMBT5088L according to the schematic. If you have the 3904 on hand, they may work well enough to allow further troubleshooting. ••• More options Share F fongman Member Joined 2009 2009-11-07 5:30 am #45 2009-11-07 5:30 am #45 I don't have any of them, i will get some tomorrow. I hope the shop here have some? ••• More options Share F fongman Member Joined 2009 2009-11-08 5:59 am #46 2009-11-08 5:59 am #46 Q202 and Q203 was replace and now the amp is working fine. Thank you Perry, i would of not gotton this amp to work without you. ••• More options Share Prev 1 2 3 First Prev 3 of 3 Go to page Go Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link
MMBT5088L according to the schematic. If you have the 3904 on hand, they may work well enough to allow further troubleshooting.
F fongman Member Joined 2009 2009-11-07 5:30 am #45 2009-11-07 5:30 am #45 I don't have any of them, i will get some tomorrow. I hope the shop here have some? ••• More options Share F fongman Member Joined 2009 2009-11-08 5:59 am #46 2009-11-08 5:59 am #46 Q202 and Q203 was replace and now the amp is working fine. Thank you Perry, i would of not gotton this amp to work without you. ••• More options Share Prev 1 2 3 First Prev 3 of 3 Go to page Go Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
F fongman Member Joined 2009 2009-11-08 5:59 am #46 2009-11-08 5:59 am #46 Q202 and Q203 was replace and now the amp is working fine. Thank you Perry, i would of not gotton this amp to work without you. ••• More options Share
Q202 and Q203 was replace and now the amp is working fine. Thank you Perry, i would of not gotton this amp to work without you.