Re: Samsung SyncMaster 226BW

Alright... I haven't measured the diode readings yet, but here is the resistance info... I've sorted them from left to right in your 'defaced' picture.

Unfortunately, although I'll admit I don't know what I'm doing... it looks like these guys are all fine... but I'll let you be the judge of that

Resistance of components:

D207:
1 -> 2: 353 OHMS
2 -> 3: 553 OHMS
3 -> 1: 0 OHMS

D206:
1 -> 2: 354 OHMS
2 -> 3: 553 OHMS
3 -> 1: 0 ...

Re: Samsung SyncMaster 226BW

Okay, here you go!

And one question, does this mean that the great trouble I had in getting readings that were half-way decent doesn't indicate anything?...

Re: Samsung SyncMaster 226BW

Oh, thanks for info! I always like learning about everything electronic! And I appreciate the somewhat humorous post

So, it looks like the transformers are okay.

Well, it looks like I have a problem:

Once I started measuring voltages... I could [I]never[/I] get the same reading twice!!! I had HUGE variations in voltage every time.

Here are some of many, many measurements. I hand picked some of the highest values.

V1: 250mV
V2: 273mV
F1: 427mV
F2: 534mV...

Re: Philips 50pfp5332d/37

Well, I sure don't have the expertise of Wizard, but assuming all internal problems with the circuity have been fixed, and assuming the white lines have 'some' color/changing capabilities... I would guess it is simply burn. Especially since it's a plasma.

If the lines were totally black, (like as those lines weren't receiving any signal) than over an extended period of time, the rest of the TV would 'wear' as the display was being used... however, because the black lines weren't receiving any signal, they would not be as worn, creating a...

Re: Samsung SyncMaster 226BW

Thanks for your quick reply!

I took some time and compared the front and back of my board, and it looks like I have an identical board, (with the same OZ694GN chip also).

Results from measuring the resistance from the circled points with a digital multimeter:

Left points: 1101 OHMS
Right points: 1111 OHMS


So, there is definitely a difference between the two transformers Does this mean that one (or both) of the transformers are bad, and thus are tripping the sense circuitry?

Re: Samsung SyncMaster 226BW

First, I wanted to thank everyone who has posted on here... it's helped me along on the repair process of my monitor.

Unfortunately, it still has the same symptoms. I replaced all the capacitors (even the big one ) but it hasn't helped.

Symptoms:

Plug it in, power light comes on, it detects a signal, and then the back light flashes once and then stays off, however, the display is still active and can be seen if one shines a light on it. (It's faint, but there)

My guess is that it's a bad...