--- a/content/dell2407.rst Sat Nov 07 15:49:10 2020 +0100
+++ b/content/dell2407.rst Tue Jan 05 23:43:56 2021 +0100
@@ -66,13 +66,13 @@
controller (L6561D) in charge of providing a nice B+ DC rail for the PWM
controller (NCP1200A) driving the main transformer.
-I could easily find datasheets for these 2 chips. But the noce thing when
+I could easily find datasheets for these 2 chips. But the nice thing when
fixing such a mass produced device is that obviously some other people already
had a similar failure to fix.
It seems that the problem my monitor suffered is a very common one. I found a
`long thread <https://www.badcaps.net/forum/showthread.php?t=14882&page=1>`_
-(obviously on https://www,badcaos.net) where people discuss this flaw and their
+(obviously on https://www.badcaps.net) where people discuss this flaw and their
quest for fixes. Which led me to a PDF with the full schematic of the PSU
(which is in fact a BenQ brand).
@@ -92,9 +92,9 @@
.. image:: {static}/images/dell2407wfp/L6561-AN.svg
:alt: Typical application schematic of the L6561 PFC controller.
-As tou can see, it is very similar to the first page of the schematic above.
-This later have the extra power button management circuit, and a few details
-and compenent values are different, but overall, a very close application of
+As you can see, it is very similar to the first page of the schematic above.
+This later has the extra power button management circuit, and a few details
+and component values are different, but overall, a very close application of
the typical application schematic (as expected).
And for the PMW stage, I could not find such a typical application circuit more
@@ -150,7 +150,7 @@
.. image:: {static}/images/dell2407wfp/junk_pcb.jpg
:alt: The PCB from which I took an APT8075BN as test Q651 replacement.
-The leads qre not exactly the same spacing, but I managed to do something:
+The leads are not exactly the same spacing, but I managed to do something:
.. image:: {static}/images/dell2407wfp/apt8075bn.jpg
:alt: The APT8075BN used as test Q651 replacement.
@@ -159,7 +159,7 @@
Which resulted in a rather acrobatic setup: I did not want to fight to make it
fit nicely enough that I can screw it on the heatsink (plus it is not
insulated, like the original transistor, so I would have had to find an
-insulator. I have some, but finding them would have required a bit fo digging
+insulator. I have some, but finding them would have required a bit of digging
in my overcrowded empire of dirt).
The resulting setup looks like:
@@ -170,7 +170,7 @@
However, before applying power again, I checked all the silicon components once
more. And I discovered (what I missed the first time) that Q653 was also dead.
-The problem was I had no proper SOT23 replacement part for it. THe good news is
+The problem was I had no proper SOT23 replacement part for it. The good news is
I do have a few 2N7000 that can be used, but are TO92 packages.
So I did a bit of surgery:
@@ -197,7 +197,7 @@
:alt: It's alive!
-However, before closing the box, I did a few tests and measurements, for the
+However, before closing the box, I did a few tests and measurements, for
fun. I found the reason for the properly working 19v rail when unloaded at the
beginning: in fact, the L6561D PFC chip is only turned on when some load is
detected by the NCP1200A controller. This allows the standby power consumption