Cannot change input source on TV and a continuous message "check source cable" appears on screen whether in SAT mode, DVD mode, or any other.
SAMSUNG DLP SOLUTION. I fix a similar model to Samsung HLS4666w model. Chasis number bp41-00278a as printed on pc board. I added capacitors to each of the three dc to dc converters on the main board. You can download the data sheet for ic212 (MP1583dn). Main board is where all the external connections are made from outside). Remove the metal cover which covers one third of the main PC board. To test this fix, only one of the dc to dc converter needs a capacitor. Location IC 212 is the dc to dc converter of major interest and will fix all problems. Add a capacitor on top of capacitor presently located at location c217 as printed on the pc board. Do not remove any old capacitors at these locations. Be careful with polarity of capacitors. Do not place this capacitor on the ic pins of MP1583dn. The voltage at location c217 should be STB 3.3 volt. You could also place the capacitor at location BD212 (+3.3) and ground, instead of on top of capacitor, if you need more clearance. BD214 and ground for converter ic 213 or on top of capacitor C236. At capacitor C212 for ic211 or at BD210 to ground. The value should be 33 uf or more, anything less will have limited fix. I would not pass 60 uf. I place a 33 uf capacitor with a working voltage of 35. This fix not only work for popping noises from speaker, but it also improve the colors. Solder with caution, leave no speck of solder behind. good luck. search the web for free service manual. Just solder the wires on that hatch door switch.
The solution above has fail. It only solved temporarily possibly making problem worst. The sound starts cracking and popping after approximately 35 minutes, than the sound goes out completely. I suspect something is overheating worst now, possibly a LDO Voltage Regulator. I will investigate and post again.
I found a solution to the sound problem, which was causing popping and static sound from the speakers.[/B] This was also shutting down the audio after watching TV for some time. I place a heat sink on IC 987 part number stv8258DSX. This IC controls the sound and is overheating. The cause is unknown to me. Its easy to place a heat sink. Direction: cut the heat sink to size allowing room for a nylon nut. make as tall as possible. drill hole in center, but drilling only to its center, not through it.. Use nylon screw and nut (plastic). Insert the screw through the hole in the grill cover metal and than thread the nut to it. place the heat sink on top of the IC and place the grill cover back on aligning screw in the hole. (Don't forget to use thermo compound between the heat sink and IC). pull up on the screw while turning clockwise to tighten. I left the TV playing all night to the next morning and sound remain normal. I even turn on SRS sound mode.
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Sounds like you have a defetive main pcb. You might try a firmware update if there is one first.
SOURCE: My Samsung HL-R5667W turns on for a quick flash
If you get on screen display with no picture and no sound, I suspect you have a failed digital board. Go to http://www.samsungparts.com you will need the COMPLETE model number IE: HLR5667W or HLR5667WAX to figure out which board you have and then you can order it from there as well. The board they sell has NO metal shielding around it so when you order the board you pull out your old one once you receive the new one and swap the metal shieding from old to new. ..Please take a few minutes to rate my answer...Thanks
SOURCE: Samsung DLP HL-R6167W
Most likely the digital board will have to be replaced. Not a cheap part, so you might concider using the component inputs for now if too expensive.
SOURCE: Samsung hl61750a - unable to display video service over hdmi
restart the att cable box by unplugging the power cord.
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Picture appears on TV from any source: SAT, DVD, VCR, but the above mentioned message appears right in the middle of the screen.
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