Probably. It's possible that the drive circuit was damaged.
In this amp and similar amps, expect the replace the gate resistors, the 20 ohm driver resistors and the MMBTA06 and MMBTA56 driver transistors.
If the 0.1 ohm source resistors are out of tolerance, you may have protection circuit damage.
In this amp and similar amps, expect the replace the gate resistors, the 20 ohm driver resistors and the MMBTA06 and MMBTA56 driver transistors.
If the 0.1 ohm source resistors are out of tolerance, you may have protection circuit damage.
Q120, 121 and those in similar locations in the circuit commonly fail.
R165, 166 and similar commonly fail.
All gate resistors commonly fail when the output transistors they drive fail.
D3 is likely a 33v zener in a sot-23 package.
See attached.
R165, 166 and similar commonly fail.
All gate resistors commonly fail when the output transistors they drive fail.
D3 is likely a 33v zener in a sot-23 package.
See attached.
Attachments
Are the big 2w gate resistors metal oxide?
Would this be a good replacement?
http://www.mouser.com/ProductDetail...=sGAEpiMZZMtlubZbdhIBIKyczXpI2OGsIpXVfvrxYME=
Would this be a good replacement?
http://www.mouser.com/ProductDetail...=sGAEpiMZZMtlubZbdhIBIKyczXpI2OGsIpXVfvrxYME=
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
- Home
- General Interest
- Car Audio
- Rockford 500a2