42PFL7422D/37 Service Manual Needed

[Panama]

Re: 42PFL7422D/37 Service Manual Needed

Many thanks.
budm; The chassis is Q523.1U.LA
I thought it was addressed in the service manual that I accessed earlier in the thread, but on closer inspection I think not. It's too technical for me to get much out of at any rate.

Selldoor: The blue caps and the larger black one on the SSB board are all Lelon. I will reassemble it and try the manual warm up and report back with the results.

retiredcaps: 1. I'll attached pics of the caps on the power supply.
2a. The LED is Blue whenever it's powered up (blue is the only color I've ever seen on it). It comes on for a few seconds after plugging it in (standby warmup), then comes on and stays on when powered on either manually or by remote.
b. There is sound.
c. Backlights (ambilites) come on and respond as normal to video images (I think).
d. When the video comes on after the long warmup, everything works as normal - menus, setup and settings
f. Picture is good. (I normally run it off my laptop now, thru a USB to HDMI converter)

3. Once warmed up it runs like a new TV and restarts quickly - haven't timed it, but will do that after reassembly.

4. No inverter boards on this chassis (see chassis picture above)

[selldoor]

Re: 42PFL7422D/37 Service Manual Needed

SM for this chassis no is here http://dl.dropbox.com/u/35219914/Phi...%20TV%20SM.zip

[Panama]

Re: 42PFL7422D/37 Service Manual Needed

I did download and go thru it. It's too technical for my bandwidth. but it's a v.useful link.
Thanks

[budm]

Re: 42PFL7422D/37 Service Manual Needed

Thanks, selldoor, I will download the manual and see how it works.
Well I looked at the service manual for PANAMA chassis: Q523.1U.LA
It does not match his chassis, it does not use the combo PS/INVERTER board.
Panama: can you verify the chassis number or the post you had referred to? The thread is getting long and hard to keep track.

[Panama]

Re: 42PFL7422D/37 Service Manual Needed

Chassis Sticker pic

[budm]

Re: 42PFL7422D/37 Service Manual Needed

OK, I will look at ELEKTROTANYA:
http://elektrotanya.com/?q=showresul...oria=&kat2=all
Nothing matches your Power/Inveter board.

[retiredcaps]

Re: 42PFL7422D/37 Service Manual Needed

4. No inverter boards on this chassis (see chassis picture above)

Ahh, I didn't notice that the overall pic and the power board pic is rotated 90 degrees. I see the inverter transformers on the power board now.

The KY caps are normally a good United Chemi-con series.

The symptoms are almost sound like classic high ESR caps. As the TV warms up, the cap's ESR drops and allows the circuit to work properly.

Do you have an ESR tester?

[Panama]

Re: 42PFL7422D/37 Service Manual Needed

no ESR tester I'm afraid. I'm about to try selldoor's strategy of prewarming the caps with a hair dryer to see if that reduces the warmup period before picture lites up. Unfortunately, now I'm just getting a red flashing error code 6 - 3. Hmmm! Any thoughts on that?

[selldoor]

Re: 42PFL7422D/37 Service Manual Needed

Something which might explain why it has different boards the thread is for
42PFL7422D/37 and your label says 42PFL7432D/37



Didnt notice that when I first replied to the post - sorry

[budm]

Re: 42PFL7422D/37 Service Manual Needed

The bad part is that he giveS the correct chassis P/N in post #105, but when I download a bunch of service manuals from ELK, none of them show the correct PS/Inv board combo.

[Panama]

Re: 42PFL7422D/37 Service Manual Needed

Something which might explain why it has different boards the thread is for
42PFL7422D/37 and your label says 42PFL7432D/37



Didnt notice that when I first replied to the post - sorry

That's probably my fault for forgetting to point it out in the first place. A 'best fit' search result landed me here in the first place and I found alot of good info but forgot that it wasn't quite the same set.

Now the TV is stuck in error code mode and won't respond.

[budm]

Re: 42PFL7422D/37 Service Manual Needed

Unplug it for about 1/2 hour and see if it will reset.

[selldoor]

Re: 42PFL7422D/37 Service Manual Needed

@Budm is this sm any different actually mentions the ***7432D model no near the front, in the specs if I remember and seems to have a pic of this video board on p 138 I think. Not studied it closely as its getting late here - need some shut-eye



http://dl.dropbox.com/u/35219914/Phi...%20TV%20SM.zip

[budm]

Re: 42PFL7422D/37 Service Manual Needed

I did downlod this one you have posted, the inside it shows power supply, main baord, and the inverter board, same for the diagrams. So far I have no luck lating the PS/INV combo board diagram yet.

[selldoor]

Re: 42PFL7422D/37 Service Manual Needed

Thread seems to have died- Can you post the pictures of the connectors budm asked for.
I cant see that any voltages have been checked - think you were waiting for guidance?
Did it recover at all after being off for a while?
I can see part of the connectors description so with it all on and connected up put meter on 200vDC and start on cn101 (as I cant see a ground screw near) put your black probe on the first pin ( Just check it does say that is Gnd doesnt it) then with the red probe check each pin and report results. You may have to probe through holes in the plug or socket. Then with the black probe on the same pin start on CN102
I think the bottom pin should be 12v? and report with voltage against each pin description.

[Panama]

Re: 42PFL7422D/37 Service Manual Needed

Well, I did take pics of the connectors and test some voltages, but didn't have both boards in or the connectors attached, so wasn't getting meaningful #'s.

When I put the the connectors on I couldn't test the volts w my meter probes, so I tried the remote and Presto! It seems to go though warmup in a few seconds and gives the picture in less than 20 seconds. So far everything seems in order. Too good to be true, but I'll take good luck when it comes along.

When I had the boards out I noticed a couple of solders that I suspected and did the wiggle test. I wonder if that has provided a temporary fix. Can others provide experience in how often there are bad solders in manufacturers boards. This is a 2008 model.

Many thanks again for your advice and efforts.
Pete

I should be looking for a new digital meter and a capacitor tester while my luck is onside. Any advice on that front (budget model, yet reliable). Cheers!

[retiredcaps]

Re: 42PFL7422D/37 Service Manual Needed

I should be looking for a new digital meter and a capacitor tester while my luck is onside. Any advice on that front (budget model, yet reliable). Cheers!

Did someone mention multimeter?

What is your budget?

[Panama]

Re: 42PFL7422D/37 Service Manual Needed

Well what are your thoughts on this:

Equus 3320 Auto-Ranging Digital Multimeter - $19 @ Amazon

Honeytek A6013L Capacitor Tester - $16 @ Amazon

[retiredcaps]

Re: 42PFL7422D/37 Service Manual Needed

Equus 3320 Auto-Ranging Digital Multimeter - $19 @ Amazon

I think this model is sold in USA Wal-Mart stores, but I have never seen it in a Canadian Wal-Mart store.

I have seen people use this multimeter on youtube and the display looks nice and big and the autoranging speed looks okay.

There is a mini writeup on this multimeter and see how it does in a variety of tests at

http://www.robotroom.com/Multimeter-Reviews-2.html

The 3320 is also on sale until Thursday 19 at Canadian Tire for $24.99 (50% off). The little brother, 3300, is on sale for $14.99, but it is manual ranging (if you care). Another manual range multimeter is the Product #25-1060-2 also $14.99 (50% off). This one looks like a USA rebranded Craftsman multimeter (made for Sears)?

Honeytek A6013L Capacitor Tester - $16 @ Amazon

At $16, you will not find any useful capacitor tester. Measuring the ESR is more important than measuring the capacitance if you are going to be troubleshooting a lot of SMPS power supplies. ESR meters start at around $50 and go up. Save your $16 towards a better multimeter that can measure capacitance (see below).

If you are in no rush to buy a multimeter and don't mind buying used, you may be able to find a good used Fluke in the $30 range. I have 4 used Flukes all purchased in the $20 to $40 range. Your local kijiji and craigslist are good places to look as there may be a lot of retired electricians in Victoria?

PS. 2 out of the 4 Flukes above can measure capacitance up to 10,000uF. The $20 (Fluke 75) is probably celebrating its 25th anniversary is still accurate and within specifications.

[Panama]

Re: 42PFL7422D/37 Service Manual Needed

Thanks retiredcaps. I really appreciate your feedback and the link to the robotroom has some v good info.

I'll pick up one of the multimeters on sale. In Victoria I've found the popular online resale venue is UsedVictoria.com with the other auction sites getting very little play (just a regional thing I guess). I may put up a wanted ad and see what comes up.

Are you interested in parting with one of your Flukes? It sounds like I may have to bid against you to get one!

Thanks Again