Re: Philips AJL308/37 Alarm Clock Radio LCD Photo Frame
there is no sound or anything.
ntehicks
Badcaps Veteran
Last Activity: 03-28-2016, 02:51 PM
Joined: 03-31-2011
Location: Herriman City, Utah USA
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Re: Philips AJL308/37 Alarm Clock Radio LCD Photo Frame
here are the pictures you requested...Leave a comment:
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Re: Philips AJL308/37 Alarm Clock Radio LCD Photo Frame
The adapter is 9vdc and I am getting 9.7 at both ends of the fuseLeave a comment:
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Philips AJL308/37 Alarm Clock Radio LCD Photo Frame
I have this clock radio that had died on me. My wife loves this thing and I guess they don't make it anymore. I would like to see if I can fix it. I have tested the power adapter and it tests normal 9 volts 1 amp. the unit was working and then all of a sudden no more screen nothing. I have opened the unit and have taken pictures of the board....Last edited by ntehicks; 03-18-2016, 09:54 PM. -
Re: Toshiba 37CV510U bad inverter
parting out tvLeave a comment:
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Re: Toshiba 37CV510U bad inverter
is this the regulator that you were talking about....Leave a comment:
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Re: Toshiba 37CV510U bad inverter
not sure how accurate the infrared thermometer is. I pointed it at the heat sink that has the diodes that runs the 24volt backlights and it hit 135. I pointed it then at the inverter transformers and they hit 155.
with the back cover off of the TV I am still getting shutdown about 20 minutes.Leave a comment:
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Re: Toshiba 37CV510U bad inverter
I was told there is a couple voltage regulators that I need to replace. do you know where those are located?...Leave a comment:
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Re: Toshiba 37CV510U bad inverter
on the back of the TV its rating is 120 volts and 1.6 max amps. I have connected the tv to a Kill-a-watt meter that gives you real time volts, watts, and amps. the tv is pulling .94 amps. so just under an amp.Leave a comment:
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Re: Toshiba 37CV510U bad inverter
so the inverter on this model is buried under the main board. should the inverter and 24volt section of the power supply be very hot in normal running conditions.Leave a comment:
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Re: Toshiba 37CV510U bad inverter
I wasn't able to run the tv with it all apart. I don't see any pink or red as far as I can tell....Leave a comment:
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Re: Toshiba 37CV510U bad inverter
Well I did it. I took it all apart. I am amazed at how much carbon has built up on the connectors for the lamps. I cleaned all of the lamp ends and put the tv back together. I have an infrared thermometer coming. that will allow me to see what the temp's are on the different items. The 24 volt transformer is still getting very hot. but the tv is staying on. I also reflowed the transformers and all devices on heat sinks....Leave a comment:
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Re: Toshiba 37CV510U bad inverter
so what would you test next? would you tear down the screen and look for black CCFL's or is there a way to test to see if the inverter is pulling to much from the power supply. Or maybe the diodes are leaky. is there a service mode on the tv that would tell me how many hours the tv has run. that would give me an idea if the blulbs have had alot of use.Leave a comment:
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Re: Toshiba 37CV510U bad inverter
I have tested all of the caps with my cap analyzer and they are showing good. I am thinking something has to be pulling to much power in the lamp area. When I get home tonight I am going to test the connector from the lamp to ground to see if maybe there is some shorting going on. The brand new inverter after about 30 minutes is so Hot. you can feel the heat radiating off of it.Leave a comment:
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Re: Toshiba 37CV510U bad inverter
ok I am testing pin 12 BL-ON and I get 3.2v when the inverter is on and the same when the inverter goes off....Leave a comment:
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Re: Toshiba 37CV510U bad inverter
ok this connector with backlight in fault and not on
pin 1 gnd = 0
pin 2 5v1 = 4.9
pin 3 gnd = 0
pin 4 12v = 11.7
pin 5 12v = 11.7
pin 6 12v = 11.7
pin 7 gnd = 0
pin 8 power tv = 3.2
pin 9 power dv = 4.9
pin 10 gnd = 0
pin 11 24v = 23.8
pin 12 power sig = 2.7
pin 13 18v-a = 17.9
pin 14 gnd = 0
ok and this is when I restart the tv and the backlight is on
pin 1 gnd = 0
pin 2 5v1 = 4.9
pin 3 gnd = 0
pin 4 12v...Leave a comment:
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Re: Toshiba 37CV510U bad inverter
in picture 20150407-201954 this heatsink gets extremely hot. all of the rest of the heatsinks on the power supply are just warm. this one I think is the one that is driving the 24volts to the inverter is very hot. I have tested the 24 volts and when the backlight is on and when it turns off I still have the 24volts. where do I test the BL-ON?...Last edited by ntehicks; 04-07-2015, 09:32 PM.Leave a comment:
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Re: Toshiba 37CV510U bad inverter
ok here are some pictures of the connectors on the power supply...Leave a comment:
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Re: Toshiba 37CV510U bad inverter
and that should be solid and not fluctuating ?Leave a comment:
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Re: Toshiba 37CV510U bad inverter
what voltage should be on the BL-ONLeave a comment:
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