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Hitachi 65SWX20B no picture/sound, 4 out of 5 green LEDs on, red LEDs on, green B+ LED is off. Pwr Relay clicks on, TV only turns on/off. IP02 location/How to check for 14-20V on terminal 4 of IP02?

Hi, tv turns on when I click on pwr button, red LED on button stays on & pwr relay clicks on, but no raster & no sound. 4 green LEDs/1 red LED stay on on Pwr Board, no blinking. Green LED D928 belonging to B+ circuit doesn't light up. Service manual says to check for 14-20V on terminal 4 of IP02, but no luck finding IP02 on diagrams or the PWR Brd. IP02 location? How to properly check for that voltage?

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The Knight

Hitachi Master 76,851 Answers
Posted on Sep 20, 2016

The Knight

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Joined: Oct 14, 2010

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Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Testimonial: "Hi Knight, there are 0 posts on that site about my tv set. By the way, sorry, 3 green leds on the supply board stay on, the 4th green one by the rear of the board (B+ circuit) is always off. I have a DVM and am an automotive mechanic, just don't have experience with appliances. But if you'd be so kind as to guide me thourgh the steps, I can perform any diagnostic tests you might require. I understand it's an old tv, but I really don't have the means to pay $300+ for repairs or a new set right now, so I would like to try and fix this one at home to save some $$$. Thanks, I appreciate your time!"

Samuel Sep 22, 2016

Hi Knight, there are 0 posts on that site about my tv set. By the way, sorry, 3 green leds on the supply board stay on, the 4th green one by the rear of the board (B+ circuit) is always off. I have a DVM and am an automotive mechanic, just don't have experience with appliances. But if you'd be so kind as to guide me thourgh the steps, I can perform any diagnostic tests you might require. I understand it's an old tv, but I really don't have the means to pay $300+ for repairs or a new set right now, so I would like to try and fix this one at home to save some $$$. Thanks, I appreciate your time!

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Hitachi 65SWX20B no picture/sound, 4 out of 5 green LEDs on, red LEDs on, green B+ LED is off. Pwr Relay clicks on, TV only turns on/off. IP02 location/How to check for 14-20V on terminal 4 of IP02?

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The Knight

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Hitachi 65SWX20B no picture/sound, 4 out of 5 green LEDs on, red LEDs on, green B+ LED is off. Pwr Relay clicks on, TV only turns on/off. IP02 location/How to check for 14-20V on terminal 4 of IP02?

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