Re: samsung 32 ln32b360c5d no power no indicator
Mine is very similar to Buowulf. Same power supply as we are talking about and isolated from the main and lamps.
I thought I had a problem with ZM804 zener but after removing the diode and testing it, I'm not so sure.
Out of circuit it tests .667 with my red meter probe on the anode. I get OL with the red lead on the cathode.
In the circuit I'm getting an indication of a short and then voltage climbs to .667v with the red lead on the anode. With the red lead on the cathode I get .7v and it climbs to 2v and then I get OL. Then when I reverse the leads I get the short and voltage again climbs to .667. Is this normal?
Filter cap 166v
Readings from CN802 (main output power connector)
Pin
1-gnd
2-sync -Starts at 0 (sometimes stable at 0) and creeps to 0.5v then to 0v
3-Det-5v -- 0.5v
4-E-PWM -- 0.5v
5-Inverter on/off varies from around 4.5v to 5v
6-13v(m) around 11.5-13v on and off
7-13v(m) around 11.5-13v on and off
8-gnd
9-5.3v varies from around 4.5v up to 5v
10-5.3v varies from around 4.5v up to 5v
11-gnd
12-gnd
13-13v(s) varies 11.5-13v
14-gnd
15-stby 5.3v varies from around 4.5v up to 5v
16-Pwr on/off varies around 0.7v
Mine is very similar to Buowulf. Same power supply as we are talking about and isolated from the main and lamps.
I thought I had a problem with ZM804 zener but after removing the diode and testing it, I'm not so sure.
Out of circuit it tests .667 with my red meter probe on the anode. I get OL with the red lead on the cathode.
In the circuit I'm getting an indication of a short and then voltage climbs to .667v with the red lead on the anode. With the red lead on the cathode I get .7v and it climbs to 2v and then I get OL. Then when I reverse the leads I get the short and voltage again climbs to .667. Is this normal?
Filter cap 166v
Readings from CN802 (main output power connector)
Pin
1-gnd
2-sync -Starts at 0 (sometimes stable at 0) and creeps to 0.5v then to 0v
3-Det-5v -- 0.5v
4-E-PWM -- 0.5v
5-Inverter on/off varies from around 4.5v to 5v
6-13v(m) around 11.5-13v on and off
7-13v(m) around 11.5-13v on and off
8-gnd
9-5.3v varies from around 4.5v up to 5v
10-5.3v varies from around 4.5v up to 5v
11-gnd
12-gnd
13-13v(s) varies 11.5-13v
14-gnd
15-stby 5.3v varies from around 4.5v up to 5v
16-Pwr on/off varies around 0.7v
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