Question about Samsung PCL5415RB 54" Rear Projection Television

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Samsung pcl5415rb replaced covergence ic's as advised but now

Burnt up resistors rz142-rz146 anybody know why and where i can get replacement resistors.Thanks in advance Scott

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3.9ohms

Posted on Dec 19, 2008

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2 resistors are burnt rz126 and rz125 but i dont know the value of these resistors samsung SPA43W6HPX


Both of those resistors are 3.9 ohm 2watt metal film resistors for the convergence ICs. The ICs will most likely need replacement as well.

Mar 03, 2011 | Samsung HCL4715W 47" Rear Projection...

1 Answer

Blue covergence wont work, wavy primary colors


Replace STKs you have 2 of them and 3 resistors near ICs 2.7 ohms.

Feb 01, 2009 | Samsung HCL4715W 47" Rear Projection...

1 Answer

Samsung hcm4215w keeps blowing conv resistors


Look Do this
Replace your STK's
I dont trust them any more after all that info, wow

anyway
replace them
and yes you need Rz123 and Rz124 to be 3.9Ohm @ 2w don't sub.
Now also order a, 3.5a pico fuse for location Fd102s.


regards,
hope this helps you.
daniel.

Jan 11, 2009 | Samsung HCM4215W 42" Rear Projection...

1 Answer

Power to unit but will not turn on.


You need to replace your STKs Both of them they are convergence ICs and do control startup. they are big black ics STK392-040 also ck (2) resistors-- RZ142 3.9ohms RZ145 3.9ohms .To order Parts Call Electronix 1-800-223-3205.

Dec 30, 2008 | Samsung HCN529W 52" Rear Projection...

1 Answer

Samsung pcl5414r power resistors and pico fuses??


Hi again and welcome back to FixYa,

Appreciate the direct "Ask Me'.

Based on your original post, only the STK ICs were replaced. Presumably 392-040, the surrounding resistors and pico fuses could very well have been affected as well. Depending on the board revision (pls confirm location numbering on the actual board), the resistors could be:
RZ104 -RZ106 - 270 Ohm 1/2watt
RZ133-RZ135 - 27K Ohm 1/16 watt
RZ136 & RZ138 - 3.3K Ohm 1/8 watt
RZ146 and RZ147 - 3.9 Ohm 2 watt
RZ148 and RZ149 - 150 Ohm 2 watt
while the pico fuses would look like the image below.
90b151e.jpg
Good luck and Thank you for using FixYa.

Dec 26, 2008 | Samsung PCL5415RB 54" Rear Projection...

1 Answer

HCN4727W with Convergence issues


Mike,
The ICZ designations on that board are two Sanyo STK392-040 amps used for convergence. Rz142 through Rz145 are the yoke return circuit are 3.9 ohm 1/2w resistors. CZ140 and 141 are two electrolytic radial 22mf/50v caps in the feed circuit for those amps.
My question would be - and I've NEVER seen this, in my 30 years in electronics, what caused such a domino failure? The amps are basically LV fed by a +/- 24v line input. If the yoke(s) were to short shouldn't cause enough feedback to destroy the convergence board in the manner you've indicated here. That's a P58A chassis used in several models of the Samsung and Akai designs. Only trouble I've heard of with those boards are cooling and most techs have taken to installing cooling fans directly on the board, driven by the +/- 20v line. That drops the temp several degrees and allows the amps to operate at a much cooler temp. We rebuild those boards here on a daily basis and add the mods for greater reliability. But other than that the P58A is considered a bullet proof chassis.
Hope this helps!
Bill

William Rayburn, CET
Premium Technologies
PO Box 442
Long Beach, WA. 98631
360-642-4993

Sep 09, 2008 | Samsung HCN4727W 47" Rear Projection...

1 Answer

TV set shuts down


3.9 ohm 2W

They are parallel in circuit and measure around 2 ohms when ok. Check the fuse associated with that circuit. FD101S 3.5 A

easyab

Aug 23, 2008 | Samsung HCM4215W 42" Rear Projection...

1 Answer

Red and green shadows


replace convergence IC'S and check values of convergence resistors.

Aug 07, 2008 | Samsung PCL5415RB 54" Rear Projection...

1 Answer

Burnt resistors


Depending on where you bought the ICs you could have fried the new ICs when powering it up with burnt resistors as the green is controled by both ICs one IC controling the horizontal green Convergence and the other IC controling the vertical green convergence. Have you checked all the convergence resistors out of circuit?

May 18, 2008 | Panasonic PT-53TW53 53" Rear Projection...

2 Answers

Convergence? not sure, check these pictures...


Check Convergence IC's for cold solder joint pins. Also check the resistors in front of the IC's, they may have smoked or changed value. Replace IC's if you see burnt or discolored resistors.

Jul 03, 2007 | Samsung HCM4215W 42" Rear Projection...

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