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New member Username: DicepackagePost Number: 1 Registered: Sep-09 | 32 Inch LCD Model:Mag 3200 more specifically ma-32ef1ac Condition: Backlight works but no picture/audio and non-responsive I recently acquired a Mag 3200 model ma-32ef1ac that is not functioning. I received this broken and I don't know the history behind it. When I plug in the tv I get the normal red light and the backlight flickers. When I go to power on the tv by remote the backlight comes on and the power button becomes blue. Normally when the tv is turned on it flashes the Mag logo but it does not do this. The tv is then unresponsive and can't be shut down. There is no picture and no audio just the backlight. I uploaded a picture of the back panel removed here: http://i31.tinypic.com/2ii8nxu.jpg I tested out the voltages on the left with a multimeter and the voltages all registered correctly. The 24V flashed about 20ish volts and then went to zero. The black thing (capacitor?) is making a slight hum or at least I think that is what is making the noise. I have never repaired tvs before so any help is greatly appreciated. |
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New member Username: DicepackagePost Number: 2 Registered: Sep-09 | After further testing the 24V connection is working fine, I had the multimeter set wrong. Does that mean the power supply is fully functional if all the DC output voltages are correct? |
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New member Username: DicepackagePost Number: 3 Registered: Sep-09 | Here is what I did to fix the problem in case this helps anyone else: Before I removed the old JL321XA main board I took a picture of everything connected to refer to in case I had any problems reconnecting anything. I ordered the GT321XA-BH Polaroid board from shopjimmy.com. When I installed it I made sure to reconnect everything the way it was before. I also made sure that the jumper was in the up position to make sure it was getting the correct voltage. The jumper was in the exact same place but had a sticker over it so I didn't see it at first. I reconnected everything and at first nothing happened. I realized I didn't push the board in far enough and the parallel port looking connection on the back wasn't fully connected. I screwed the back panel in a bit to get some of the parts to stay in place and it worked when I powered it on. I also had to use a rotary cutter (dremel) to make room for the HDMI ports. It looks kind of ugly but it works. The only difference is it now thinks it is running a Polaroid board. Picture in picture no longer works with this board but on the plus side there is a second HDMI port. It also thinks I have a card reader and USB in the source options even though they aren't there. |
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New member Username: RajbPost Number: 1 Registered: Feb-10 | Stephen: Have installed the new board but am not sure what the 'jumper' is or where, also I have no power despite having replaced the first fuse (250V 5A), did you have an issue with the PS? Any ideas what to replace it with? Thanks for your help! |
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New member Username: Ks4714Post Number: 1 Registered: Apr-11 | I was having the same issue with my MAG 3200 (no display, just a backlit screen). I ordered a refurbished board from Discount-Merchant.com, and after installing it, I got a pulsing red light on the LED in the front panel. No output on the screen, not even the backlight that the old board showed. Does anyone know if this is an indication of something else being the cause of the TV's malfunction? |
