On Tuesday, April 6, 2021 at 11:26:35 AM UTC-4, wrote:
On Tuesday, April 6, 2021 at 8:35:31 AM UTC-4, Stu jaxon wrote:
On Thursday, April 1, 2021 at 2:33:50 PM UTC-4, Adrian Caspersz wrote:
On 01/04/2021 19:04, Stu jaxon wrote:
Hi Group, need help identifying a blown IC. it's on Vizio e550-b2, power supply board # DPS-167DP ,.. Board locator # ic901, it has 7 pins, and the top is blown away.??
You missed an 'I'
Googling is remarkably effective with the right input.
e550I-b2 ic901
e.g.
https://www.badcaps.net/forum/showthread.php?t=79046
https://www.badcaps.net/forum/showthread.php?t=70423
Apparently a LD7913JGM6, a PWM controller?
--
Adrian C
I have a .068 ohm resistor reading 0.00.. acting like a short, it is a low ohm resistor, is it supposed to read???
Did you zero the meter? Sometimes a low value resistor is shunted by a choke, and sometimes some residual voltage in the circuit will throw off a resistance reading. Try removing one lead of the resistor and checking again, and if it's OK, see if it is paralleled with another low resistance component.
I did lift a lead, and it's still reading zero, like a short.??? it doesn't look like it's paralleled with another low resistance component.