Repair Changhong LCD TV 3D42A3700iD three failure-free one case - Home Appliances

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On March 2nd, a user came to the store to call Xiaofu to repair a TV, followed by the user's home, pointing to a PDP TV on the wall, Changhong 3D42A3700iD, the fault was suddenly three in the viewing, non-lightning machine, bad in the second half of last year Has not been repaired, disassembled, after a simple test, the insurance is intact, there is 300V but can not be released, check the first two parts of the components are normal, I want to bring the power board home, but I am afraid that there are abnormalities in other places, and negotiate with the user , can only take the machine home, 3 days to send back, the price is orange green brown, the user agrees
No. 4 hands-on, visual power supply board [PSPF251502A] icb801Sd the first foot is blown, CB801 capacitor one foot rust broken QQ806 three feet rust broken,, remove the IC [3BR2565JF] measurement resistance is short circuit, has been scrapped, QQ806 [STD5915] The measurement of the clean pin is infinite, and the circuit on the back has the phenomenon of stripping and mildew. After cleaning the paint with the water of the day, the line is removed, and the TB is used to view the board. 80, the new 100, Not shipping, it feels a bit uneconomical, or bought a total of 14 yuan in the power supply IC for a total of 14 yuan, I plan to repair it myself, after the order began to find STD5915 on the old board, but can not find this type of triode, In the forum, I couldn't find any other alternatives. I found a piece of information on Marco Polo. I found that I can use D13007. I found a lot of power boards, only 13001 and 13003, and later in the town of Nikko. Looking for a D13007 on the flow board, simply measure the order of the pins of the TO-92 package and the previous package. The outer casing and the C pole are connected. A hole is drilled in the heat sink of the power IC. Silicone grease and cloud The piece is fixed, and the heat shrinkable tube is connected to the original position with a thin wire. The CB801 is a 222/800v polyester capacitor. One side of the pin is broken and replaced with a 472/2kv ceramic capacitor. This part is completed, rest, after 3 days. Received, 3BR2565JF coated silicone grease installed, power, has been out 5V, on the machine, press the button to boot, has been bright, snowflakes are normal, try DVD, picture is intact, 7th sent past orange green brown, warranty one year [/fly]