Question about Samsung HCL5515W 55" Rear Projection Television

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Samsung HCL5515w Some resistors on the board melted, need a service manual/schematic to identify the proper resistors I need.

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Usually if some parts on the board burnt on that model it can be caused by leaky tubes. Meaning the coolant from the crt's has dripped out. If burnt components are beneath any of the tubes, inspect very closely for liquid substance having leaked down from coolant chambers above. If this has happened you must seal leaky gaskets before going through any trouble of pcb repair.If burnt parts are not below tubes, most common cause is bad convergence ic's. At any rate, service info avail online or at samsung.com or 1800samsung. Hope this helps.

Posted on May 29, 2008

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I have a jvc rx-518v amplifier with a burned out resistor on the imput board (r474) and diode (d474). They are severely overheated and the identifiers are gone, but the rest appears functioning. Any clue...


R474 should be a 18Ohm 2 watt metal oxide resistor part no. QRG022J-180AF
See page 2-9
and D474 is a zener diode part no. MTZ12JC see page 2-8.

The service manual can be downloaded from
JVC RX 518 VBK SM Service Manual free download schematics eeprom repair...
scroll down and select Get Manual link.

Aug 24, 2014 | Televison & Video

2 Answers

Component failure


what model you have and what brand?

Jun 12, 2009 | Televison & Video

1 Answer

Picture shaped like a bowtie, (shrinking)


Hello, This is your classic convergence Amplifier IC problem. Here is a way to deal with it. These are generic instrustions: 1) Get the schematic/service manual for this TV (You will need it because it contains the part numbers and component values you will need for replacement) 2) On the schematic/service manual locate the convergence amplifiers (STK392-110, 120, 150) and the biasing resistors (Write the resistor values down from the schematic) 3) Unplug the TV and remove the rear cover to expose the electronic circuitry. 4) Using the schematic/service manual find the physical location of the two convergence amplifiers (Usually attached to a big metal silver in color heat sink) (Basically it will look like two big black six sided flat modules with a lot of pins on the bottom (18-22 to be exact)). 5) After finding the heat sink and amplifiers remove the screws or the tension bar holding the amplifiers in place. 6) Using a soldering iron and a de-soldering device (either a de-soldering pump or de-soldering wick) remove the solder from the pins of the amplifiers and biasing resistors that protrude from the solder side of the circuit board. (Take into mind that you may have to remove the board in order to do this, use the instructions in the schematic/service manual to do this, and make sure you mark everything you remove to make sure you have a guide as to how to put it back) 7) After removing the solder from the pins off the amplifiers and the biasing resistors, remove the resistors making a list of the value, part number, and location on the board (all of this should be in the schematic/service manual). Then remove the two convergence amplifier modules taking care so as not to damage the circuit board. NOTE: The heat sink compound (the white goopy stuff) may have hardened and caused the module to stick to the heat sink, you will have to gently pry the module away from the heat sink, I have used a light application of isopropyl alcohol to dissolve the heat sink paste. 8) Once the modules are loose from the heat sink, you can gradually remove them from the circuit board. 9) Clean the heat sink off by using the alcohol and a heavy paper towel (remove all of the heat sink paste, and yes this is messy) At this point you have removed the two convergence amplifier modules and the biasing resistors and cleaned the heat sink. Now you will have to use your schematic/service manual to find the part locations, values and numbers you will need to replace the old parts I suggest replacing the biasing resistors first. 1) Sort out the resistors you will need and as stated in the schematic/service manual and replace them according to the schematic/service manual locations and part numbers. 2) Solder the components (resistors) in place making sure not to short out anything in the process. 3) Apply heat sink paste to the metal side of the modules one at a time and the put the modules into the circuit board lining up the screw holes of the modules with the screw holes in the heat sink, use the removed screws or tension bar to hold the modules down once in place in the circuit board and on the heat sink. 4) Solder the pins of both amplifier modules to the circuit board, taking care not to short out anything. 5) Reinstall the board to the TV, reconnect all cables removed (DOUBLE CHECK EVERYTHING) If all went well the convergence amps should be working, and you will need to realign the convergence of your TV, I suggest using the AUTO Convergence feature of your TV (Use the instructions in the schematic/service manual). All should be good now. Now these instructions are generic in nature but can be use for a number of Models of Projection TVs. In addition to this also make sure your Yoke transformers on your CRTs are functioning as they should, check the voltages applied to them. I hope this helps, Thank you, Shuttle83 http://www.electron-age-technologies-llc.com

Jun 10, 2009 | JVC AV-56WP30 56" Rear Projection...

1 Answer

PCL5415R conv. board problem. Having trouble finding part number. I have the manual Samsung


I'll take a look if you want to forward them to me:
freetek@lycos.com
This convergence board problem seems to be very common and if they are not too model specific (firmware embedded) there may be service companies repairing them. I don't; haven't done a whole lot of service for years partially due to the difficulty of trying to pry stuff out of the hands (or shelves) of Asia. 

Oct 13, 2008 | Samsung HCL5515W 55" Rear Projection...

2 Answers

Convergence problem


Hello nursecmp,

You have a convergence amplifier problem. Now you have two choices: 1) fix it yourself or 2) Get it fix by a qualified TV repair person. Granted if you choose the latter, you will spend about $200-$500 depending on the shop. So as you stated you would want to do this yourself. OK, I will not get into the problems with this, rather I'll give you the basic procedure and the you can search fixya for a more in depth solution (I'll show you how to do this after the basic instruction on how to replace the Convergence Amplifiers (I rarely give these instructions) Here goes:

1) Get the schematic/service manual for this TV (You will need it because it contains the part numbers and component values you will need for replacement)

2) On the schematic/service manual locate the convergence amplifiers (STK392-110, 120, 150) and the biasing resistors (Write the resistor values down from the schematic)

3) Unplug the TV and remove the rear cover to expose the electronic circuitry.

4) Using the schematic/service manual find the physical location of the two convergence amplifiers (Usually attached to a big metal silver in color heat sink) (Basically it will look like two big black six sided flat modules with a lot of pins on the bottom (18-22 to be exact)).

5) After finding the heat sink and amplifiers remove the screws or the tension bar holding the amplifiers in place.

6) Using a soldering iron and a de-soldering device (either a de-soldering pump or de-soldering wick) remove the solder from the pins of the amplifiers and biasing resistors that protrude from the solder side of the circuit board. (Take into mind that you may have to remove the board in order to do this, use the instructions in the schematic/service manual to do this, and make sure you mark everything you remove to make sure you have a guide as to how to put it back)

7) After removing the solder from the pins off the amplifiers and the biasing resistors, remove the resistors making a list of the value, part number, and location on the board (all of this should be in the schematic/service manual). Then remove the two convergence amplifier modules taking care so as not to damage the circuit board. NOTE: The heat sink compound (the white goopy stuff) may have hardened and caused the module to stick to the heat sink, you will have to gently pry the module away from the heat sink, I have used a light application of isopropyl alcohol to dissolve the heat sink paste.

8) Once the modules are loose from the heat sink, you can gradually remove them from the circuit board.

9) Clean the heat sink off by using the alcohol and a heavy paper towel (remove all of the heat sink paste, and yes this is messy)

At this point you have removed the two convergence amplifier modules and the biasing resistors and cleaned the heat sink.

Now you will have to use your schematic/service manual to find the part locations, values and numbers you will need to replace the old parts I suggest replacing the biasing resistors first.

1) Sort out the resistors you will need and as stated in the schematic/service manual and replace them according to the schematic/service manual locations and part numbers.

2) Solder the components (resistors) in place making sure not to short out anything in the process.

3) Apply heat sink paste to the metal side of the modules one at a time and the put the modules into the circuit board lining up the screw holes of the modules with the screw holes in the heat sink, use the removed screws or tension bar to hold the modules down once in place in the circuit board and on the heat sink.

4) Solder the pins of both amplifier modules to the circuit board, taking care not to short out anything.

5) Reinstall the board to the TV, reconnect all cables removed (DOUBLE CHECK EVERYTHING)


If all went well the convergence amps should be working, and you will need to realign the convergence of your TV, I suggest using the AUTO Convergence feature of your TV (Use the instructions in the schematic/service manual).

All should be good now.

Now these instructions are generic in nature but can be use for a number of Models of Projection TVs.

Jul 18, 2008 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

HCL5515W Service Manual


if you still have the service manual can you email it to me april1371@wildblue.net red convergence went out thanks

Jun 09, 2008 | Samsung HCL5515W 55" Rear Projection...

1 Answer

Samsung HCL5515WX/XAA convergence Issue


I would replace both of the STK392-040, and check the resistors with one side out of circuit. The variable resistors are melted at the factory after the resistance is dialed in. I would check the resistance on it before replacing it. You can get replacement ICs and resistors at the following link and they provide free instalation instructions.
http://servicemanuals.vstore.ca/

Jun 09, 2008 | Samsung HCL5515W 55" Rear Projection...

3 Answers

Need resistor value for RK62 on DP2X board for 57SWX20B


RK62 is a 2.2ohm 1 watt metal oxide resistor hitachi part number 0700054M any 2.2ohm 1 watt resistor will work although it does have to be metal oxide(flame resistant) for safety purposes.

Mar 24, 2008 | Hitachi 57SWX20B 57" Rear Projection...

1 Answer

Samsung HCL5515W red convergence problem


sounds like your convergence IC's have fail and possibly a bad dcm. Some of there models have a small board with the ic's them. It may be cheaper to replace the board. But you can repair it if you have proper equipment

Jan 20, 2008 | Samsung PCN5425R 54" Rear Projection...

1 Answer

Identifying resistor


look at the location marking on the pc boaed and record the number of the resistor  and then we can find the value of it via schematic /parts list ,also require model #

Oct 04, 2007 | Panasonic PT-53TW53 53" Rear Projection...

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