Home Theater Questions? Ask a Technician for Answers ASAP
Hi and welcome to JustAnswer,Thank you for the question and your patience. Should you still need assistance for information purposes only...Initially, there would be both +5V and -5V. What part(s) are inside the heat shrink tubes near the big capacitors please?
That these resistors are encapsulated would point to a possibility of potential heat issues. Please check resistances of these resistors and compare to marks/color codes.
Louie did you get a look at q1?
Unfortunately, could not make out the numbers.
How about now?
Appreciate the clear picture Johnny and it is an N-Channel MOSFET switching regulator.
Proposed preliminary tries (if have not been done):
A friendly reminder: voltage measurements by its very nature requires that the unit/circuit be plugged in and therefore LIVE! Please exercise due care and caution.